WO2020164386A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2020164386A1
WO2020164386A1 PCT/CN2020/073644 CN2020073644W WO2020164386A1 WO 2020164386 A1 WO2020164386 A1 WO 2020164386A1 CN 2020073644 W CN2020073644 W CN 2020073644W WO 2020164386 A1 WO2020164386 A1 WO 2020164386A1
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WIPO (PCT)
Prior art keywords
sequence
information
time domain
index information
identification information
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Ceased
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PCT/CN2020/073644
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English (en)
French (fr)
Inventor
沈祖康
费永强
龙毅
郭志恒
谢信乾
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to AU2020222608A priority Critical patent/AU2020222608B2/en
Priority to EP20755702.6A priority patent/EP3926876B1/en
Publication of WO2020164386A1 publication Critical patent/WO2020164386A1/zh
Priority to US17/402,069 priority patent/US12074816B2/en
Anticipated expiration legal-status Critical
Priority to US18/786,125 priority patent/US20240388398A1/en
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • 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
    • 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
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • 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
    • H04L5/0092—Indication of how the channel is divided
    • 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

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method and device.
  • cross-interference may occur between two network devices working on the same frequency.
  • link Interference CLI
  • the so-called non-directional interference refers to the interference caused by a downlink (DL) signal sent by one network device to an uplink (UL) signal received by another network device.
  • DL downlink
  • UL uplink
  • Atmospheric duct effect allows DL signals sent by network devices to propagate over long distances, which is one of the reasons for CLI.
  • Base station 1 and base station 2 that are far apart geographically, even if they have the same transmission direction (that is, receive uplink/send downlink signals at the same time), due to the long distance between them, the downlink signal sent by base station 1 reaches base station 2 Obvious delay has passed, which is longer than the guard period (GP) of the uplink and downlink handover of base station 2, and base station 2 has switched from the downlink transmission direction to the uplink reception direction, so the downlink signal sent by the remote base station 1 Interfering with the uplink signal received by the local base station 2 results in ultra-long-distance interference (remote interference, RI).
  • RI ultra-long-distance interference
  • the interfering station can reduce the transmission power and the number of downlink symbols sent by the interfering station.
  • the way of sending and receiving a reference signal (RS) is usually used to detect different direction interference.
  • the reference signal used to measure the ultra-long-distance interference may be referred to as the ultra-long-distance interference management reference signal (RIM-RS).
  • the interfered base station can identify the base station that sent the RIM-RS by receiving or detecting the RIM-RS, or if an interfering base station sends RIM-RS RS, the interfering base station can identify the base station sending the RIM-RS by receiving or detecting the RIM-RS.
  • the embodiments of the present application provide a communication method and device to solve the problem of how to send and receive RIM-RS during ultra-long-distance interference measurement.
  • a communication method is provided.
  • the execution subject of the method may be a first network device.
  • the method is implemented by the following steps: determining a transmission resource of a reference signal according to identification information and parameter information; wherein, the transmission resource includes One or more of the sequence of the reference signal, the frequency domain resource and the time domain resource, the identification information is used to identify a network device; the parameter information includes sequence indication information and frequency domain indication information, the sequence indication information It is used to indicate one or more candidate sequences, and the frequency domain indication information is used to indicate one or more candidate frequency domain resources; and the reference signal is sent on the transmission resource.
  • the first network device can determine the sequence and time-frequency resource for sending the reference signal according to the identification information and the parameter information, realize the sending of the reference signal, and improve the effectiveness of interference cooperation between the network devices.
  • the identification information and parameter information are information for high-level nodes or OAM configuration for operation, maintenance and management.
  • the sequence of the reference signal corresponding to the identification information is determined from the candidate sequence; and/or the sequence of the reference signal corresponding to the identification information is determined from the candidate frequency domain resource Frequency domain resource; and/or, determine the time domain resource according to the identification information.
  • the requirements for the number of RIM-RS sequences in NR may vary with the number of gNB deployed by operators. For example, when the number of gNBs is small, the number of RIM-RS sequences can be reduced, thereby reducing detection complexity and improving detection probability.
  • NR in the frequency band below 6GHz, NR can support a maximum bandwidth of 100MHz. In the bandwidth of the NR system, there may be multiple RIM-RS transmissions in different frequency domains, that is, frequency division transmission. The above method can support frequency Sub-transmission.
  • the time domain resource may be a time unit; the time domain resource or time unit includes one or more uplink and downlink switching periods; the parameter information further includes first indication information and second indication One or more of the information or the third indication information; the first indication information is used to indicate: the number of repeated transmissions of the reference signal; the second indication information is used to indicate: the symbol that carries the reference signal The position in the uplink-downlink switching period; the third indication information is used to indicate: the uplink-downlink switching period used to carry the reference signal in the first uplink-downlink switching period and the second uplink-downlink switching period; wherein, the The first uplink/downlink switching period and the second uplink/downlink switching period are adjacent in the time domain, and the patterns of the first uplink/downlink switching period and the second uplink/downlink switching period are different.
  • the flexible configuration of reference signals it can be adapted to different reference signal sequence numbers and different network bandwidth requirements, and can be configured for different repeated enhancement requirements and detection distance requirements, so that network devices in networks with different deployment characteristics can perform Ultra-long distance interference measurement. For example, it can be applied to scenarios where the number of gNB deployed by different operators in NR can range from tens of thousands of stations to a million stations.
  • the sequence of the reference signal corresponding to the identification information is determined from the candidate sequence by the following method: the sequence index information corresponding to the identification information is determined, and the sequence index information is determined from the candidate sequence. Determining the sequence of the reference signal corresponding to the sequence index information.
  • determining the frequency domain resource corresponding to the identification information from the candidate frequency domain resources is achieved in the following manner: determining the frequency domain index information corresponding to the identification information, from the candidate frequency domain resources Determine the frequency domain resource corresponding to the frequency domain index information from the frequency domain resource.
  • determining the time domain resource according to the identification information is achieved by: determining the time domain index information corresponding to the identification information; determining the time domain index information in the period indicated by the period indication information Corresponding to the time domain resource, the period indication information is used to indicate a period for sending the reference signal.
  • determining the time domain resource according to the identification information is achieved in the following manner: determining the period of the reference signal according to the identification information, the sequence indication information, and the frequency domain indication information; Determining the time domain index information corresponding to the identification information; determining the time domain resource corresponding to the time domain index information in the period.
  • the bit at the first designated position in the time domain index information is determined by reference signal difference information.
  • the two reference signal types can be distinguished by time division.
  • the identification information includes first identification information and second identification information;
  • the time domain index information includes first time domain index information and second time domain index information; wherein, the first identification information The information corresponds to the first time domain index information, and the second identification information corresponds to the second time domain index information.
  • the time domain resource includes a first time domain resource and a second time domain resource; the determining of the time domain resource can be implemented in the following manner: determining according to the first time domain index information The first time domain resource in the period, and/or the second time domain resource in the period is determined according to the second time domain index information. Helps to achieve more accurate interference coordination between base stations.
  • the time domain resource includes a first time domain resource and a second time domain resource; the determining of the time domain resource may be implemented in the following manner: according to the first time domain index information and The first offset determines the first time domain resource in the period, and/or the second time domain resource in the period is determined according to the second time domain index information and the second offset.
  • the first identification information only needs to indicate the time domain position in the first sub-period, and usually the first sub-period is smaller than the entire transmission period, so compared to the first identification information, it needs to indicate the time domain position in the entire transmission period. , The number of bits required is less, which can save signaling overhead.
  • the second identification information only needs to indicate the time domain position in the second sub-period, and the second sub-period is usually smaller than the entire transmission period. Therefore, compared to the second identification information, it needs to indicate the time domain position in the entire transmission period. The number of bits required is small, which can save signaling overhead.
  • the first offset is determined by the second sub-period, and/or the second offset is determined by the first sub-period.
  • the bit at the second designated position in the sequence index information is determined by the interference cancellation state indication information. In this way, the two interference cancellation states can be distinguished by code division.
  • the identification information includes first identification information and second identification information;
  • the sequence index information includes first sequence index information and second sequence index information; wherein, the first identification information corresponds to The first sequence index information, the second identification information corresponds to the second sequence index information.
  • the first index information is used to indicate that the interference cancellation used by the interfering station is sufficient; the second index information is used to indicate that the interference cancellation used by the interfering station is insufficient, which helps to achieve more Accurate interference coordination between base stations.
  • the identification information includes third identification information and fourth identification information;
  • the sequence index information includes first sequence index information and second sequence index information; wherein, the first identification information corresponds to The first time domain index information and the first sequence index information, the second identification information corresponds to the second time domain index information and the first sequence index information, and the third identification information corresponds to the first sequence index information.
  • a time domain index information and the second sequence index information, and the fourth identification information corresponds to the second time domain index information and the second sequence index information. Helps to achieve more accurate interference coordination between base stations.
  • the identification information includes third identification information;
  • the sequence index information includes first sequence index information and second sequence index information; wherein, the first identification information corresponds to the first time domain Index information and the first sequence index information, the second identification information corresponds to the second time domain index information, and the third identification information corresponds to the first time domain index information and the second sequence index information . It helps to achieve more accurate interference coordination between base stations.
  • the sequence includes a first sequence and a second sequence; the determination of the sequence of the reference signal is achieved in the following manner: according to the first sequence index information, the candidate sequence is determined A first sequence corresponding to the first sequence index information, and/or, according to the second sequence index information, a second sequence corresponding to the second sequence index information is determined from the candidate sequence.
  • the sequence includes a first sequence and a second sequence; the determination of the sequence of the reference signal is achieved in the following manner: according to the first sequence index information and the third offset, from The first sequence corresponding to the first sequence index information is determined in the candidate sequence, and/or, according to the second sequence index information and the fourth offset, the candidate sequence is determined to be the first sequence corresponding to the first sequence.
  • the second identification information only needs to indicate the sequence in the sequence resource in the second range, and usually the sequence resource in the second range is smaller than the entire sequence resource. Therefore, compared to the second identification information, it needs to indicate the sequence in the entire sequence resource. The number of bits required is small, which can save signaling overhead.
  • a communication method is provided.
  • the execution subject of the method is a receiving end, such as a second network device.
  • the method is implemented by the following steps: determining the receiving resource according to parameter information, wherein the parameter information includes sequence indication information And frequency domain indication information, the sequence indication information is used to indicate one or more candidate sequences, the frequency domain indication information is used to indicate one or more candidate frequency domain resources; and a reference signal is received on the receiving resource.
  • the parameter information is applicable to both the first network device and the second network device.
  • the second network device can receive or detect the candidate time-frequency domain resources and sequence sets according to the parameter information, and according to the sequence and time of the detected reference signal Frequency resource, and determine the identification information of the first network device that sends the reference signal, thereby realizing the reception of the reference signal. Helps improve the effectiveness of interference coordination between network devices.
  • the method further includes: determining a transmission resource of the reference signal, where the transmission resource includes one or more of a sequence corresponding to the reference signal, frequency domain resources, and time domain resources;
  • the transmission resource of the reference signal determines identification information of the reference signal, and the identification information is used to identify a network device that sends the reference signal.
  • NR in the frequency band below 6GHz, NR can support a maximum bandwidth of 100MHz. In the bandwidth of the NR system, there may be multiple RIM-RS transmissions in different frequency domains, that is, frequency division transmission. The above method can support frequency Sub-transmission.
  • the identification information is determined according to the transmission resource of the reference signal, which is achieved by: determining the sequence index information according to the sequence of the reference signal; determining the frequency domain according to the frequency domain resource of the reference signal Index information; and/or, determine time domain index information according to the time domain resource of the reference signal; according to one or more of the sequence index information, the frequency domain index information, and the time domain index information , Determine the identification information.
  • the flexible configuration of reference signals it can be adapted to different reference signal sequence numbers and different network bandwidth requirements, and can be configured for different repeated enhancement requirements and detection distance requirements, so that network devices in networks with different deployment characteristics can perform Ultra-long distance interference measurement. For example, it can be applied to scenarios where the number of gNB deployed by different operators in NR can range from tens of thousands of stations to a million stations.
  • a communication device which has the function of realizing any possible design of the first aspect, the second aspect, and the first aspect or any possible design of the second aspect.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device can be a chip or an integrated circuit.
  • the device includes a transceiver and a processor, the transceiver is used to communicate with other communication devices, and the processor is used to couple with the memory to execute the program stored in the memory.
  • the device can The method described in any possible design of the first aspect, the second aspect, the first aspect, or any possible design of the second aspect is implemented.
  • the device also includes a memory for storing programs executed by the processor.
  • the device is a terminal.
  • a chip is provided, the chip is connected to a memory or the chip includes a memory, and is used to read and execute a software program stored in the memory, so as to implement the above-mentioned first, second, and first aspects.
  • a communication system in a fifth aspect, includes a first network device and a second network device.
  • the first network device is configured to execute the method in the first aspect and any possible design, and/or the first
  • the second network device is used to implement the above-mentioned second aspect and any possible design method.
  • a computer storage medium which stores a computer program, and the computer program includes instructions for executing the foregoing aspects and any possible design method in each aspect.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the above-mentioned aspects and the methods described in any possible design of the aspects.
  • Figure 1 is a schematic diagram of ultra-long-distance interference in the prior art
  • Figure 2 is a schematic diagram of the communication system architecture in an embodiment of the application.
  • FIG. 3 is a schematic flowchart of a communication method in an embodiment of this application.
  • FIG. 4 is a schematic diagram of repeatedly sending reference signals in an embodiment of the application.
  • FIG. 5 is one of the schematic diagrams of indicating the position of the symbol in the embodiment of the application.
  • FIG. 6 is the second schematic diagram of the position of the indicating symbol in the embodiment of this application.
  • FIG. 7 is a schematic diagram of repeatedly sending reference signals at different positions in an embodiment of the application.
  • FIG. 8 is a schematic diagram of a pattern of an uplink and downlink handover cycle in an embodiment of the application.
  • FIG. 9 is one of the schematic diagrams of the indication mode of the reference signal in different styles in the embodiments of the application.
  • FIG. 10 is the second schematic diagram of the reference signal indication mode in different styles in the embodiment of this application.
  • FIG. 11 is the third schematic diagram of the indication mode of the reference signal in different styles in the embodiment of this application.
  • FIG. 12 is a schematic diagram of resource index information in an embodiment of this application.
  • FIG. 13 is a schematic diagram of the mapping relationship between resource index information and resources in different domains in an embodiment of the application.
  • 15 is one of the schematic diagrams of the first method for indicating additional information in an embodiment of this application.
  • 16 is a second schematic diagram of the first method for indicating additional information in an embodiment of this application.
  • FIG. 17 is the third schematic diagram of the first method for indicating additional information in an embodiment of this application.
  • FIG. 19 is one of the schematic structural diagrams of the communication device in the embodiment of the application.
  • FIG. 20 is the second schematic diagram of the structure of the communication device in the embodiment of this application.
  • the embodiments of the present application provide a communication method and device, which help to flexibly send and receive reference signals when measuring ultra-long-distance interference between network devices.
  • the method and the device are based on the same concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • "and/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and both A and B exist at the same time. There are three cases of B.
  • the character "/" generally indicates that the associated objects are in an "or” relationship.
  • At least one involved in this application refers to one or more; multiple involved refers to two or more.
  • words such as “first” and “second” are only used for the purpose of distinguishing description, and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating Or imply the order.
  • the communication method provided by the embodiments of this application can be applied to various communication systems, such as: long term evolution (LTE) system, worldwide interoperability for microwave access (WiMAX) communication system, fifth generation ( 5th Generation, 5G) systems, such as new radio access technology (NR), and future communication systems, such as 6G systems.
  • LTE long term evolution
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • NR new radio access technology
  • 6G future communication systems
  • the two network devices involved in ultra-long-distance interference in this application may belong to the same communication system, or may belong to different communication systems.
  • FIG. 2 shows the architecture of a possible communication system to which the communication method provided by the embodiment of the present application is applicable.
  • the communication system 200 includes: the communication system 200 includes multiple network devices. Taking two network devices as an example, it is represented by a network device 201 and a network device 202.
  • the communication system 200 may also include multiple terminals.
  • the network device 201 and the network device 202 respectively serve different terminals. There is interference between the network device 201 and the network device 202, and the interference can be measured and coordinated by sending and receiving reference signals.
  • the communication system may include multiple network devices.
  • network devices that are interfered by other network devices may be referred to as interfered stations, and network devices that cause interference to other network devices may be referred to as interfered stations.
  • a network device may only interfere with other network devices and be the interfered station, or it may only interfere with other network devices and be the interference station. It is also possible that the network device causes interference to other network devices and is also interfered by other network devices, then the network device can determine itself as the interfering station and/or the interfered station according to some judgment rules.
  • the communication method provided in the embodiments of the present application can be applied to a scenario of ultra-long-distance interference.
  • the specific scenario of ultra-long-distance interference is described in FIG. 1 and will not be repeated here.
  • the reference signal sent or received between network devices can be applied to the measurement of ultra-long-distance interference.
  • the reference signal may be called RIM-RS, and of course it may also be called For other names, the reference signal in this application can be illustrated with RIM-RS.
  • the reference signal in the embodiment of the present application may also carry other information, which is used for interference coordination between the interfering station and the interfered station.
  • the network equipment 201 and the network equipment 202 may be far apart geographically, so the network equipment 202 and the network equipment 202 need to be measured, and the measurement or interference can be performed through the transmission and reception of RIM-RS coordination.
  • the network device 201 and the network device 202 are devices with wireless transceiving functions or chips that can be installed in the device.
  • the devices include but are not limited to: evolved Node B (eNB), wireless Network controller (radio network controller, RNC), node B (Node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB) , Or home Node B (HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, wireless relay node, wireless backhaul node, Transmission and reception point (TRP or transmission point, TP), etc., can also be a gNB in a 5G (such as NR) system, or a transmission point (TRP or TP), one or a group of base stations in a 5G system
  • the antenna panel may also be a network node constituting a gNB or a transmission point, such as
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include a radio unit (RU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB, for example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements wireless link
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • DU implements wireless link
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • the network device may be a CU node, or a DU node, or a device including a CU node and a DU node.
  • the CU can be divided into network equipment in the access network RAN, and the CU can also be divided into network equipment in the core network CN, which is not limited here.
  • the terminal served by network equipment can also be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal equipment, Wireless communication equipment, user agent or user device.
  • the terminal in the embodiment of this application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (AR) terminal device , Wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety (transportation) wireless terminals in safety), wireless terminals in smart cities, and wireless terminals in smart homes.
  • the method in the embodiments of the present application can also be applied to other application scenarios of interference measurement or interference coordination.
  • the network architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application.
  • Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.
  • the communication method provided by the embodiments of the present application involves the sending and receiving of reference signals between two network devices.
  • the execution body may be a sending end and a receiving end, or may be represented by a first network device and a second network device.
  • the first network device is the sending end
  • the second network device is the receiving end.
  • the first network device determines the transmission resource of the reference signal according to the identification information and the parameter information.
  • the transmission resource of the reference signal described here may include one or more of the sequence of the reference signal, frequency domain resources, and time domain resources.
  • the first network device sends a reference signal on the determined transmission resource.
  • the second network device determines the receiving resource according to the parameter information.
  • the second network device receives the reference signal on the determined receiving resource.
  • S303 can be executed synchronously with S301 before S302.
  • the reference signal is used to detect the different direction interference.
  • the parameter information used by the first network device and the second network device may be the same.
  • the parameter information may include one or more kinds of information, and the parameter information may be notified or configured to the network device through a high-level node or operation administration and maintenance (OAM). It is also possible that some kinds of parameter information are stipulated by agreement.
  • OAM operation administration and maintenance
  • the parameter information may also be referred to as global parameters, and may include transmission resources configured for multiple network devices.
  • the parameter information may indicate a resource set in one or more of the three dimensions of sequence, time domain, or frequency domain.
  • the parameter information includes sequence indication information, and the sequence indication information is used to indicate one or more candidate sequences.
  • the parameter information further includes frequency domain indication information, and the frequency domain indication information is used to indicate one or more candidate frequency domain resources.
  • resources in the time domain dimension can be implemented in different ways. Implementation manner 1:
  • the resources of the time domain dimension can be indicated by parameter information, that is, the parameter information also includes indication information of the time domain resource, and the indication information of the time domain resource is used to indicate one or more candidate time domain resources.
  • Implementation mode two the resources of the time domain dimension can also be indicated in other information. That is, other information carries the indication information of the time domain resource.
  • Implementation mode 3 The indication information of the time domain resource may not be explicitly indicated by the information.
  • the indication information of the real-time domain resource is an implicit indication.
  • the network device can determine the time domain according to its own identity, sequence indication information and frequency domain indication information. Dimensional resources. The way of implicit indication will be explained in detail below. It can be understood that the aforementioned candidate sequence, candidate frequency domain resource and candidate time domain resource are related to the reference signal.
  • the network device periodically sends the reference signal in the time domain dimension
  • the transmitted period is a resource in the real-time domain dimension
  • each time domain resource in the period of the reference signal can also be considered as a candidate time domain resource of the network device.
  • Multiple network devices can send or receive reference signals in a time-division manner within a cycle.
  • a cycle includes multiple time units, and one network device occupies one time unit.
  • the time unit occupied by the network device is the time domain resource in the transmission resource of the reference signal sent by the network device.
  • the uplink resources and downlink resources of the network equipment are occupied alternately, and an uplink and downlink switching cycle includes uplink resources, downlink resources, and guard intervals.
  • a time unit may include one or more uplink and downlink switching cycles.
  • a network device may send one or more reference signals on a time unit in a cycle.
  • the sequence indication information is used to indicate one or more candidate sequences. It can also be said to be used to determine the sequence set of the reference signal, that is, the set of the largest reference signal that can be sent and received by the entire network in an uplink and downlink switching period.
  • the sequence indication information may indicate the total number of candidate sequences, or may indicate each specific sequence in the candidate sequence.
  • the sequence indication information may include initial phase indication information of the sequence or initial seed indication information of the sequence.
  • the sequence indication information may indicate the initial phase of the Gold sequence corresponding to each RIM-RS, or information required for generating the initial phase.
  • Table 1 gives an example of sequence indication information for illustration. Of course, the expression form of the sequence indication information may have other forms.
  • the sequence indication information in Table 1 indicates that the total number of RIM-RS candidate sequences is N 1 , and also indicates the initial phase of the Gold sequence corresponding to the RIM-RS candidate sequence.
  • N 1 can be configured, for example, N 1 can be equal to 1, 2, 4, 8, 16, and so on.
  • the total number of RIM-RS sequences is N 1 and it may not be indicated, and it is determined by the number of initial phase parameters of the Gold sequence.
  • the sequence indication information may also indicate the number of bits required to indicate the total number of RIM-RS sequences, denoted as N seq . usually Indicates that x is rounded up.
  • C0, C1, ... CN1-1 can be the initial phase itself, or it can be the information needed to generate the initial phase. If it is to generate the information required for the initial phase, the network equipment can generate the RIM-RS sequence applied at different times according to C 0 , C 1 ,...C N-1 , and other time-related information, and other time-related information Information such as transmission cycle number, uplink and downlink switching cycle number, subframe number or slot number, etc. In this way, the RIM-RS can change over time, thereby having better confidentiality.
  • the initial phase c init of the Gold sequence corresponding to the RIM-RS sequence can be expressed by the following formula (1).
  • n ID is the initial phase generation parameter indicated by the sequence indication information
  • c ct is the count of time units, or the count of other time granularity, such as the count of cycles. Further, the c ct can be pre-defined to be reset every certain time, for example, every 24 hours at UTC 00:00.
  • the initial phase c init of the Gold sequence corresponding to the RIM-RS sequence can also be expressed by other formulas, such as the following formula (1-2), or by other formulas. It only needs to be generated based on the initial phase indicated by the sequence indication information
  • the parameters can determine the initial phase:
  • the initial phase of the RIM-RS or all the parameters for generating the initial phase are pre-defined in the standard protocol, there is no need for higher-level nodes or OAM to configure candidate sequences through parameter information.
  • the frequency domain indication information is used to indicate one or more candidate frequency domain resources, which can also be said to be used to determine a set of candidate frequency domain resources.
  • the frequency domain indication information may indicate the total number of candidate frequency domain resources, and may also indicate the specific frequency position of each candidate frequency domain resource. For example, at least two of the frequency of the start position, the frequency of the end position, and the occupied bandwidth of each candidate frequency domain resource may be indicated.
  • Table 2 gives an example of frequency domain indication information for illustration.
  • the presentation form of the frequency domain indication information may have other forms.
  • the frequency domain indication information in Table 2 indicates that the total number of candidate frequency domain resources of the reference signal is N 2 , and also indicates the starting position of each candidate frequency domain resource and the occupied bandwidth B 2 .
  • Each candidate frequency domain resource is represented by S 0 ... S N2-1 respectively, and the starting position of each candidate frequency domain resource is represented by aa, bb, cc, etc.
  • different N 2 can be configured, for example, N 2 can be equal to 1, 2 , 4, 8, 16, and so on.
  • the information N 2 of the total number of candidate frequency domain resources is not necessarily indicated, and can be determined according to the number of candidate frequency domain resources.
  • the frequency domain indication information may also indicate the number of bits required to indicate the total number of candidate frequency domain resources, denoted as N freq . usually
  • the starting frequencies S 0 , S 1 , ... S N2-1 can be expressed by absolute frequencies, or by resource block (resource block, RB) numbers, or subcarrier numbers.
  • the occupied bandwidth B 2 can be represented by an absolute frequency width, or a number of continuous RBs, or a number of continuous subcarriers.
  • the end position of each candidate frequency domain resource can also be used instead of the RIM-RS bandwidth, which can also achieve the effect of indicating the reference signal bandwidth.
  • the parameter information also includes period indication information
  • the function and optional form of the period indication information are introduced below.
  • the period indication information may be indicated in the parameter information, or may be indicated by other information.
  • the period indication information is used to indicate candidate time domain resources.
  • the period indication information may indicate the time length of the period in which the reference signal is sent.
  • the period indication information indicates the total number of time units N 3 included in one period.
  • the period indication information may also indicate the number of bits required for the period length, denoted as N tu .
  • the minimum sending granularity uplink and downlink switching period can be calculated by N 3 * the number of uplink and downlink switching periods included in each time unit.
  • the cycle indication information may also indicate the total number of uplink and downlink switching cycles included in a cycle.
  • the reference signal may need to be repeatedly sent for enhancement, or considering the proximity effect of the detection distance, it needs to be sent at different symbol positions in different uplink and downlink switching periods, so one time unit may include multiple uplink and downlink switching periods.
  • the network device sends multiple reference signals in multiple uplink and downlink switching cycles.
  • the reference information may also include one or more of the following indication information to indicate the specific transmission form of the reference signal.
  • the following is represented by the first indication information, the second indication information, and the third indication information.
  • the first indication information is used to indicate the number of repeated transmissions of the reference signal.
  • Repeated transmission here refers to the number of times the reference signal is sent repeatedly in a cycle, that is, in a cycle, in time
  • the same reference signal is sent at the same time-frequency resource position in each uplink-downlink switching period.
  • the reference signal is sent in the uplink and downlink switching cycle without repeated transmission; (b) in Figure 4 shows an example of sending a reference signal with a repetition number of 2 in one cycle, that is, two consecutive transmissions in one cycle
  • the same reference signal is sent twice at the same time-frequency resource location in two uplink and downlink switching cycles.
  • the reference signal takes RIM-RS as an example.
  • the first indication information may indicate the number of repeated transmissions of the reference signal N 4 .
  • N 4 is a natural number or a positive integer.
  • the first indication information may also indicate an index of a predefined list, and each index represents a different number of repetitions.
  • the first indication information may also use other indication methods to indicate the repeated transmission rule of the reference signal.
  • Carrying the reference signal indicative of a second symbol position information indicates the downlink switch period, as represented by L 5.
  • the second indication information may indicate at least two of the start position, the end position, and the total number of occupied symbols of the symbol carrying the reference signal in the uplink and downlink handover period to indicate the symbol carrying the reference signal in the uplink and downlink handover period. In the location. In the case where the total number of symbols occupied by the reference signal is predefined, the second indication information may indicate one of the start position and the end position of the resource occupied by the symbol carrying the reference signal in the uplink-downlink handover period to characterize the reference signal bearing The position of the symbol in the uplink and downlink switching cycle.
  • the symbol is an orthogonal frequency division multiplexing (OFDM) symbol.
  • the second indication information indicates the position of the RIM-RS symbol, there may be multiple methods. For example, it can indicate the symbol index of the first symbol or the last symbol of the multiple OFDM symbols occupied by RIM-RS in one uplink-downlink switching period; for another example, it can indicate the symbol index of the multiple OFDM symbols occupied by RIM-RS.
  • the reference position can be a certain OFDM symbol, such as the last downlink OFDM symbol in an uplink-downlink switching period, or the first uplink OFDM symbol.
  • the reference position can be pre-configured, or predefined, or included in In the second instruction message.
  • the second indication information may indicate the first symbol of the 2 symbols, or indicate the end of the 2 symbols symbol. Specifically, it can indicate the symbol index of the first symbol or the last symbol. For example, in Fig. 5, the symbols in an uplink and downlink switching cycle are numbered starting from 0, and the 2 symbols occupied by the sending reference signal are 49 and 50. Then the second indication information may indicate at least two of the three items of 49, 50, or indicating that the number of occupied symbols is 2.
  • the second indication information may also indicate multiple different positions, that is, the positions where the reference signal is sent are different in different uplink and downlink switching periods.
  • the second indication information may indicate the total number of positions of the symbols carrying the reference signal in the uplink-downlink switching period, and may also indicate specific position information.
  • the reference signal symbol is the RIM-RS symbol as an example, and a possible manifestation is shown in Table 3.
  • the second indication information indicates the number of RIM-RS symbol positions N 5 , and also indicates the position of each RIM-RS symbol. For example, the number of positions is 2, and each RIM-RS symbol position ⁇ L 5-0, L 5-1 ⁇ represents . Similarly, the number N 5 of RIM-RS symbol positions is not necessary, and can be determined by the number of RIM-RS symbol position information.
  • the position of the reference signal symbol in the uplink and downlink switching period 1 is position 1
  • the position of the reference signal symbol in the uplink and downlink switching period 2 is position 2.
  • different reference signal symbol positions can correspond to different detection distances, and reference signals are sent at different symbol positions in multiple uplink and downlink switching cycles, which can expand the distance between the interfering station and the victim station.
  • the detection range of the distance can be indicated by indicating a number of different reference signal symbol positions.
  • the uplink and downlink switching period included in one time unit is N 4 *N 5 .
  • the reference signal may be sent in a manner of repeatedly sending N 4 times at the same symbol position in each uplink and downlink switching period. Specifically, first repeatedly transmitting a first symbol time N 4 N 4 position in consecutive downlink switch period, the transmission is repeated again in the second symbol position N 4 consecutive downlink switch period on N 4 times, and so on, until the N 5th symbol position is repeated N 4 times. In this way, at the receiving end, the reference signals with the same symbol position can be combined and detected, and the concentrated repetition of the reference signals is beneficial to avoid the degradation of combining performance caused by changes in the wireless channel.
  • the positions of the two reference signal symbols are represented by position 1 and position 2.
  • the reference signal may be sent on position 1 of both the uplink and downlink switching period 1 and the uplink and downlink switching period 2, and the reference signal may be sent on both the position 2 of the uplink and downlink switching period 3 and the uplink and downlink switching period 4.
  • the first network device sends a total of 4 identical reference signals in four uplink and downlink switching cycles.
  • the patterns of the uplink and downlink switching periods may be different.
  • the so-called pattern refers to the design of the positions and proportions occupied by uplink resources, downlink resources, and guard intervals in the uplink and downlink switching periods.
  • the network device is configured with two different styles of uplink and downlink switching periods, which can be marked as style 1 and style 2.
  • style 1 and style 2 The ratio between downlink resources and uplink resources in style 1 and style 2 may be different.
  • the following describes the reference signal indication methods in different patterns in detail.
  • the reference signal can be sent on one or part of the different patterns, or the reference signal can be sent on each of the different patterns. No matter which method is used for transmission, it needs to meet the design requirements for the number of repeated transmissions of the reference signal and the position of the reference signal symbol.
  • the parameter information may also include third indication information.
  • the third indication information is used to indicate the uplink and downlink switching periods used to carry the reference signal in the uplink and downlink switching periods of different patterns. For example, there are two styles of uplink and downlink switching periods represented by a first uplink and downlink switching period and a second uplink and downlink switching period, and the first uplink and downlink switching period and the second uplink and downlink switching period are adjacent in the time domain.
  • the third indication information is used to indicate the uplink-downlink switching period used to carry the reference signal in the first uplink-downlink switching period and the second uplink-downlink switching period.
  • Table 4 An expression form of the third indication information is shown in Table 4 as an example.
  • Table 4 indicates the number of the third indication information for downlink switch period carrying the reference signal, represented by N 6, also indicates the downlink switch period carrying the reference signal for which specific style downlink switch period .
  • the first downlink switch period is represented by P 1
  • the second downlink switch period is represented by P 2, assuming only carried on the second downlink switch period, indicating ⁇ P 2 ⁇ .
  • the first network device may determine the information according to the number of pattern information of the uplink and downlink switching periods carrying the reference signal.
  • the third indication information may only indicate that it is sent on a specific one of the two uplink and downlink switching periods Reference signal.
  • the following describes the reference signal indication methods under different patterns, different repetition times and different reference signal symbol positions.
  • the first indication information indicates that the number of repeated transmissions of the reference signal is N 4 times
  • the second indication information indicates that the total number of positions of the symbol of the reference signal in the uplink and downlink switching cycle is N 5
  • the third indication information indicates the up and down of the reference signal.
  • the row switching cycle has only one uplink and downlink switching cycle, which can be called an effective uplink and downlink switching cycle.
  • the first network device should transmit the RIM-RS in the effective uplink-downlink switching period, and if there are two uplink-downlink switching periods, transmit the RIM-RS every other uplink-downlink switching period.
  • N may be repeated for the first four symbol positions, and then the second symbol position 4 is repeated N times, and so on until the first symbol position N 5 N was repeated four times so far.
  • the second case is a first case
  • the first indication information indicates that the number of repeated transmissions of the reference signal is N 4 times
  • the second indication information indicates that the total number of positions of the symbol of the reference signal in the uplink and downlink switching cycle is N 5
  • the third indication information indicates the up and down of the reference signal.
  • the number of uplink and downlink switching cycles included in a time unit is twice that of a single pattern of uplink and downlink switching cycles. Of course, taking two styles as an example, there may be more than two styles in actual applications.
  • the first network device transmits the RIM-RS in two effective uplink and downlink switching periods. Because the effective downlink switch period of two styles, therefore, to be repeated for the first symbol positions 2 * N 4 times, and then repeated for the second symbol positions 2 * N 4 times, and so on until the first N 5 symbol positions are repeated 2*N 4 times.
  • the first indication information indicates that the number of repeated transmissions of the reference signal is N 4 times
  • the second indication information indicates that the total number of positions of the symbol of the reference signal in the uplink and downlink switching cycle is N 5
  • the third indication information indicates the up and down of the reference signal.
  • the number of uplink and downlink switching cycles included in a time unit is equal to the number of uplink and downlink switching cycles of a single pattern.
  • the first network device may not distinguish the pattern of the uplink and downlink switching period, and it can be understood that the method for sending the uplink and downlink switching period of the same pattern is the same. I.e. prior to the first symbol position N 4 was repeated twice, and then the second symbol position N 4 was repeated twice, and so on until the first symbol position N 5 N 4 was repeated once so far.
  • the number of uplink and downlink switching periods included in a time unit in this application can be determined in the following manner.
  • the number of uplink and downlink switching cycles included in a time unit can be determined by the number of repetitions N 4 and the number of reference signal symbol positions N 5 .
  • the number of row switching cycles is N 4 *N 5 .
  • the number of uplink and downlink switching cycles included in a time unit can be determined by the number of repetitions N 4 , the number of reference signal symbol positions N 5 and the effective uplink and downlink switching cycle definite.
  • the parameter information in this application has been expounded above.
  • the parameter information is applicable to both the first network device and the second network device.
  • the first network device Before sending the reference signal, the first network device needs to determine the transmission resource of the reference signal.
  • the first network device may determine the transmission resource of the reference signal according to the identification information and the parameter information.
  • the identification information can also be configured through the upper node and OAM.
  • the identification information which may also be referred to as an identification number or identification, is mainly used to identify and characterize the network device that sends the reference signal (RIM-RS). It is used to identify the first network device.
  • the identification information can be defined in multiple ways, for example, it can be the gNB ID in NR (gNB ID), it can also be the gNB group ID (set ID) after grouping NR cells, or it can be based on gNB ID or set ID.
  • the identifier obtained by further mapping transformation for example, can be the high N bits or low N bits of the gNB ID or set ID, or other predefined identifiers; the identification information can carry certain cooperation information; a gNB can have one or more Identification number.
  • a gNB can have two identification numbers, namely identification number 1 and identification number 2.
  • gNB corresponds to identification number 1 when it is an interfered station, and corresponds to identification number 2 when it is an interference station.
  • gNB can be based on its own interference/ In the case of interference, determine to send RIM-RS corresponding to identification number 1 and/or identification number 2.
  • the first network device may select a transmission resource for sending the reference signal by itself among the candidate resources indicated by the parameter information.
  • the first network device determines the sequence of the reference signal corresponding to the identification information from one or more candidate sequences indicated by the sequence indication information.
  • the first network device determines a frequency domain resource corresponding to the identification information from one or more candidate frequency domain resources indicated by the frequency domain indication information. If the parameter information includes period indication information, or indicates period indication information in other information, the first network device determines the time domain resource corresponding to the identification information from the period indicated by the period indication information. If the parameter information does not include period indication information, the first network device may determine the period of the reference signal according to the identification information, sequence indication information and frequency domain indication information, and then determine the time domain resource corresponding to the identification information in the period.
  • a ⁇ code, frequency, time ⁇ resource space composed of sequence, frequency domain resources, and time domain resources can be determined.
  • resource index For each resource in the resource space, there is a resource index.
  • n seq be the index of the sequence
  • n freq is the frequency domain index
  • n tu is the time domain index.
  • the combination of ⁇ n seq , n freq , n tu ⁇ can be used as the resource space of ⁇ code, frequency, time ⁇ Index, specific different values ⁇ n seq ,n freq ,n tu ⁇ correspond to different resources in the code, frequency, and time resource space.
  • n idx can also be used as the resource index of the resource in the code, frequency, and time resource space.
  • n idx the relationship between n idx and ⁇ n seq ,n freq ,n tu ⁇ can be the formula ( 2):
  • N freq is the number of bits required to represent the number of frequency domain resource positions
  • N tu is the number of bits required to represent the number of time units in a reference signal transmission cycle.
  • N 2 is the number of positions of candidate frequency domain resources, Indicates that x is rounded up; for example, if there are 3 candidate frequency domain resource positions, the value of N freq is 2.
  • the situation of N tu is similar, usually N 3 is the number of time units included in one reference signal transmission cycle.
  • mapping relationship between n seq , n freq , n tu and n idx can be expressed by formulas (3) to (6):
  • N bits of the identification information in the mapping relationship are related to the "N seq bits used to determine the sequence index", "N freq bits used to determine the position of the frequency domain resource", and "N bits used to determine the time domain resource.
  • the correspondence relationship between " tu bits” can also have other forms. It is not limited that N seq , N freq , and N tu must be the high N seq bits, the second N freq bits, and the low N tu bits of the N bits. They only need to be There is a clear one-to-one correspondence between them.
  • N seq , N freq , and N tu may also be low N seq bits, second N freq bits, high N tu bits, or low N seq bits, high N freq bits, and middle N tu bits of the N bits of the identification information.
  • the corresponding mathematical relationship can also be expressed in a manner similar to formula (2).
  • the first network device may determine a piece of resource index information according to the identification information, where the resource index information is a resource index indicating a resource space of ⁇ code, frequency, time ⁇ , which can be considered as the aforementioned n idx .
  • the identification information may be equivalent to the resource index information, and the mapping relationship between the identification information and the resource index information may also be established by an operation method such as reverse order or modulo.
  • the first network device may also determine resource index information of different domains according to the identification information. For example, the sequence index information is determined according to the first part of the identification information, the frequency domain index information is determined according to the second part of the identification information, and the time domain index information is determined according to the third part of the identification information.
  • the first network device may determine the sequence index information corresponding to the identification information, and determine the sequence of the reference signal corresponding to the sequence index information from the candidate sequences; it may also determine the frequency domain index information corresponding to the identification information, and determine the sequence index information corresponding to the candidate frequency domain resources.
  • the frequency domain resource corresponding to the frequency domain index information If the network device is notified or configured with period indication information, the first network device may determine that the identification information corresponds to time domain index information, and determine the time domain resource corresponding to the time domain index information in the period indicated by the period indication information. If the network device is not notified or configured, the network device can implicitly determine the period.
  • the first network device determines the period of the reference signal according to the identification information, the sequence indication information and the frequency domain indication information, determines the time domain index information corresponding to the identification information, and determines the time domain resource corresponding to the time domain index information in the cycle.
  • the resource index information can be an overall resource index, or can be divided into sequence index information, frequency domain index information, and time domain index information.
  • the resource index includes N bits and is represented by A N-1 A N-2 A N-3 ... A 1 A 0 . It is assumed that the number of reference signal sequences in an uplink and downlink switching cycle is at most 8, the number of candidate positions in the frequency domain is 4, and the time domain period is 2 N-5 time units.
  • the network device is configured with a single uplink and downlink switching cycle pattern, and each time unit includes 4 uplink and downlink switching cycles.
  • the sequence index information N seq is the upper 3 bits of the resource index information.
  • the specific value n seq of the 3 bits determines which of the 8 sequences the reference signal sequence sent by the first network device is; for example, the 3-bit n seq takes If the value is '011', that is, 3 in decimal, the first network device sends a reference signal sequence with index 3.
  • the frequency domain index information N freq is the 4th to 5th bits of the resource index information.
  • the specific value n freq of the 2 bits determines which of the 4 candidate frequency domain resources is used when the first network device sends the reference signal; for example, The 2-bit value n freq is '01', that is, 1 in decimal, and the first network device sends the reference signal at the position of the candidate frequency domain resource whose index is 1.
  • N tu is the lower N-5 bits of the resource index information; the specific value n tu of the N-5 bits determines which of the 2 N-5 time units is the time unit in which the first network device sends the reference signal, That is, the time unit position of the reference signal; it can also be considered that the value n tu represents the index of the time unit, or it can be considered to indicate the offset between the time unit where the reference signal is located and the start position of the period.
  • one time unit includes 4 uplink and downlink switching periods, which is determined by the fact that the number of repetitions of the reference signal RIM-RS is 2 and there are 2 reference signal symbol positions.
  • a single pattern of uplink and downlink periods is taken as an example. If the first network device is configured with two uplink and downlink switching periods, the number of uplink and downlink switching periods included in the time unit is also related to the effective uplink and downlink switching period.
  • the sequence index information may not be determined based on the identification information, that is, the sequence may not be determined based on the identification information, but only the frequency domain resources and time domain resources of the corresponding reference signals may be determined based on the identification information.
  • the sequence index information or frequency domain index information may not be determined according to the identification information, that is, the sequence or frequency domain resource is not determined according to the identification information, but the corresponding reference signal is determined only according to the identification information. Time domain resources.
  • the first network device determines the resource index information corresponding to the identification information, that is, the resource of each domain can be determined according to the resource index information.
  • the identification information can be directly resource index information.
  • the resource index information of the first network device is N- bit information of A N-1 A N-2 A N-3 ... A 1 A 0
  • the identification information is B N-1 B N-2 B N-3 ... B 1 B 0 , if the value of A N-1 A N-2 A N-3 ... A 1 A 0 is 1101001111, 1101001111 is also the resource index of the reference signal corresponding to the identification information A N-1 A N-2 A N-3 ...A 1 A 0 value.
  • the first network device determines the number of remaining bits according to the number of bits of the identification information, sequence index information and frequency domain index information, and according to the number of remaining bits S , Determine the period according to 2 S.
  • the time unit of the reference signal in a cycle is determined according to the values corresponding to the remaining bits.
  • the second network device determines the receiving resource according to the parameter information, and the receiving resource is equivalent to a ⁇ code, frequency, time ⁇ resource space composed of sequence, frequency domain resources, and time domain resources determined according to the parameter information.
  • the second network device receives or detects the reference signal on the receiving resource.
  • the second network device determines the transmission resource of the received reference signal.
  • the symbol when the first network device sends the reference signal is determined by the symbol when the reference signal is received, and the frequency domain resource that receives the reference signal is determined.
  • the sequence corresponding to the reference signal is determined according to the reference signal.
  • the second network device determines the identification information of the reference signal according to one or more fields in the transmission resource of the reference signal.
  • the second network device determines sequence index information according to the sequence of the reference signal; determines frequency domain index information according to the frequency domain resource of the reference signal; and/or determines time domain index information according to the time domain resource of the reference signal; One or more of sequence index information, frequency domain index information, and time domain index information determine the identification information of the first network device.
  • the time domain resource corresponding to the receiving resource of the second network device is an uplink resource
  • the time domain resource corresponding to the transmission resource of the first network device is a downlink resource. The two are different. This is due to the ultra-distance That is due to the delay caused by transmission.
  • the first network device can determine the sequence and time-frequency resource for sending the reference signal according to the identification information and parameter information.
  • the parameter information is applicable to both the first network device and the second network device, and the second network device According to the parameter information, the candidate time-frequency domain resource and sequence set can be received or detected, and the identification information of the first network device that sends the reference signal can be determined according to the sequence and time-frequency resource of the detected reference signal, thereby achieving Reference signal transmission and reception.
  • the design of the reference signal in this application it is possible to flexibly send and receive reference signals when performing ultra-long-distance interference measurement between network devices under various network configuration and detection requirements, thereby realizing interference stations. /Detection and identification of interfered stations.
  • the flexible configuration of reference signals it can be adapted to different reference signal sequence numbers and different network bandwidth requirements, and can be configured for different repeated enhancement requirements and detection distance requirements, so that network devices in networks with different deployment characteristics can perform Ultra-long distance interference measurement.
  • the embodiment of the present application can also carry more additional information through the reference signal, for example, the reference signal is used to indicate whether the network device that sends the reference signal is the interfering station or the interfered station, or, for example, the reference signal is used to instruct the interfering station to use Is the interference cancellation sufficient? A specific description will be given below.
  • the first additional information is a first additional information:
  • the reference signal can be represented by RIM-RS.
  • RIM-RS can carry some information used for cooperation between network devices, which is recorded as the first type of additional information.
  • This first type of additional information can be used to distinguish the network device sending the RIM-RS from being the "interfered station” or "interfering" Station” information.
  • the first type of additional information is used to distinguish whether the type of the RIM-RS is RS-1 or RS-2.
  • RIM-RS can be divided into two types, one type is sent by the "interfering station” and denoted as RS-1, and the other type is sent by the "interfering station” and denoted as RS-2.
  • the network device that detects the RIM-RS it can be known whether the network device that sent the RIM-RS is the interfering station or the interfered station, so that the interference cancellation strategy can be adjusted. For example, if a network device detects RS-1 during the entire RIM-RS transmission cycle, it indicates that the network device is likely to cause significant interference to other network devices, and interference cancellation is required.
  • Some network equipment is both an interfering station and a victim station, and can send RS-1 or RS-2.
  • the first type of additional information may be indicated by time domain index information.
  • the transmitted and/or received RIM-RS is RS-1; at other times, for all network devices, the transmitted and/or received RIM-RS All RIM-RS are RS-2.
  • the following introduces two possible methods for indicating the first additional information, both of which are implemented through time domain index information.
  • the bit at the first designated position in the time domain index information is determined by reference signal difference information.
  • the reference signal distinction information is used to distinguish whether the network device sending the RIM-RS is the "interfered station” or the "interfering station".
  • the reference signal difference information is used to distinguish whether the type of the RIM-RS is RS-1 or RS-2.
  • the reference signal difference information may be configured by a high-level node or OAM.
  • a high-level node or OAM may configure a network device with reference signal difference identification information to indicate the existence of reference signal difference information.
  • the first network device may determine the value of the reference signal difference information according to its own interference situation. Considering that the reference signal difference information indicates two types, the reference signal difference information can occupy one bit, and the network device sending the RIM-RS can be distinguished from the "interfered station" or "interfering station” according to the different value of the bit, or , Distinguish the type of RIM-RS is RS-1 or RS-2. For example, for "RS-1", the value of this bit is 0 (or 1), and for "RS-2", the value of this bit is 1 (or 0).
  • the value of the reference signal difference information is used to determine the time to send the RIM-RS, because when the RIM-RS is RS-1 or RS-2, the value of this bit is different, which makes the time domain resources used by RS-1 and RS-2 parallel. Not the same.
  • the time of receiving the RIM-RS may also be different to determine whether the received RIM-RS is sent by the interfered station or the interfering station.
  • the first designated position may be the highest bit or the lowest bit in the time domain index information, or any designated position.
  • the reference signal difference information determines the highest bit in the time domain index information, and RS1/2 represents the highest bit. This helps to focus on distinguishing RS-1 and RS-2 in time. For example, 11 bits composed of 1-bit reference signal distinguishing information "RS-1/RS-2 distinguishing bits" as high bits and the low 10 bits of identification information as low bits, representing a total of 2048 time units. Then the first 1024 time units correspond to RS-1, and the last 1024 time units correspond to RS-2, so that the traversal of the RIM-RS sent by the interfering station or the interfered station can be completed more quickly.
  • the reference signal distinguishing information "RS-1/RS-2 distinguishing bits” can also be used to determine the lower bits of the RIM-RS time unit, which is also feasible.
  • the length of the identification information will be less than the length of the resource index information.
  • the first network device determines the value of the first designated position bit in the time domain index information according to the current interference state, and then determines the entire resource index information according to the identification information and the value of the first designated position bit, or determines the indexes of the three domains Information, and then determine the transmission resources of each domain according to the resource index information.
  • Method 2 Differentiating different reference signal types by using two identification information, or distinguishing whether the network device sending the reference signal is an interfering station or an interfered station.
  • the two identification information includes first identification information and second identification information, the first identification information corresponds to the first time domain index information, and the second identification information corresponds to the second time domain index information.
  • the two identification information can also be configured through high-level nodes or OAM.
  • the first network device may determine which identification information is used to determine the transmission resource according to the current interference state.
  • the first time domain index information and the second time domain index information respectively correspond to different reference signal types, or distinguish whether the network device sending the reference signal is an interfering station or a victim station.
  • the first time domain index information is used to indicate that the network device sending the reference signal is an interference station, or the type of the reference signal is RS-1.
  • the second time domain index information is used to indicate that the network device sending the reference signal is the interfered station, or the type of the reference signal is RS-2.
  • the first time domain index information and the second time domain index information are both used to indicate the time domain resources of the entire transmission period.
  • the network device may directly determine the location of the time domain resource in the entire transmission period according to the first time domain index information or the second time domain index information.
  • the network device determines that it is an interfering station, it selects the first identification information to determine the transmission resource, and when it determines that it is an interfered station, it selects the second identification information to determine the transmission resource.
  • the network device determines the first time domain resource in the period according to the first time domain index information corresponding to the first identification information, and transmits the reference signal on the first time domain resource.
  • determine the second time domain resource in the period according to the second time domain index information corresponding to the second identification information determine the reference signal on the second time domain resource.
  • the first identification information (identified by identification information 1) are B 2 to B 0
  • the first time domain index information corresponds to the first 4 time units of the period.
  • the low 3 bits B 2 to B 0 of the second identification information correspond to the 3 bits A 2 to A 0 of the second time domain index information
  • the second time domain index information corresponds to the last 4 times of the period unit.
  • Low Low 3 bits of identification information B 1 B 3-bit identification information may be in the range 2 ⁇ B ⁇ 2 2 0 0 B may be not the same range, respectively, 000 to 100 and 011 to 111, so that Ensure that RS-1 and RS-2 can be distinguished in time.
  • the network device can infer the time length of the global cycle from any piece of identification information, and all identification information can share the same mapping method, which is simple to implement.
  • the mapping method is the mapping relationship between the value of the bit and the candidate time domain resource in the period.
  • the number of bits of the first identification information and the second identification information are equal, or the number of bits of the first time domain index information and the second time domain index information are the same. This is also because the periods indicated by them are the same period (that is, the transmission period of the entire reference signal). From the perspective of sending RIM-RS, this method is no different from the first embodiment. However, it should be noted that when notifying/configuring the identification information of multiple network devices, it should be ensured that the time unit that may be used by RS-1 is different from the time unit that may be used by RS-2.
  • the second network device can also be notified/configured with a time range distinction information , Used to distinguish the possible time range of RS-1 and RS-2.
  • a time range distinction information Used to distinguish the possible time range of RS-1 and RS-2.
  • the information can be: ⁇ RS-1:000 ⁇ 011, RS-2:100 ⁇ 111 ⁇ .
  • the time range distinction information can also be the ratio of the time period between RS-1 and RS-2, such as ⁇ 1:1 ⁇ ; or the end/start time of RS-1 and/or RS-2.
  • the location of the unit, etc. only need to allow the second network device to determine whether it belongs to RS-1 or RS-2 according to the time when the RIM-RS is detected.
  • distinguishing whether the type of the reference signal is RS-1 or RS-2 can be equivalent to distinguishing whether the network device that sends the reference signal is the interfering station or the interfered station.
  • the first time domain index information is used to indicate the first time domain resource of the first sub-period
  • the second time domain index information is used to indicate the second time domain of the second sub-period.
  • the first sub-period and the second sub-period constitute the entire transmission period, that is, the entire period.
  • the network device can determine the position in the first sub-period according to the first time domain index information, and then determine the time domain resource position of the entire transmission period according to the first offset; determine the position in the second sub-period according to the second time domain index information
  • the position in the sub-period is then determined according to the second offset to determine the time-domain resource position of the entire transmission period.
  • the first offset is determined by the second sub-period
  • the second offset is determined by the first sub-period.
  • a period includes 6 time units, a first sub period includes 4 time units, and a second sub period includes 2 time units.
  • the first identification information ie, identification information 1
  • the value of 2 bits indicates the position of the reference signal in the first sub-period (4 time units).
  • 00 represents the first time unit within 4 time units
  • 01 represents the second time unit within 4 time units.
  • N tu1 and N tu2 are respectively the number of bits required to represent the period of the first sub-period RS-1 and the period of the second sub-period RS-2.
  • the entire transmission period of the reference signal is the sum of the period of RS-1 and the period of RS-2, a total of 6 time units.
  • the 6 time units can be indicated by the real-time domain resource indexes A 2 to A 0 in the lower 3 bits of the resource index.
  • the network device can use the first time domain index information B 1 B 0 corresponding to the first identification information plus the first offset value (Denoted as offset 1)
  • the first time domain resource is determined.
  • the time domain resource index A 2 to A 0 can be determined first, and then the first time domain resource is further determined.
  • the first time domain resource is one of the first 4 time units.
  • the network device can use the second time domain index information B 0 corresponding to the second identification information plus the second offset value (denoted as offset 2) to determine the second time domain resource, optionally,
  • the time domain resource index A 2 to A 0 may be determined first, and then the second time domain resource may be further determined.
  • the second time domain resource is one of the last two time units.
  • the offset value corresponding to the identification information 2 may be determined by the first subperiod corresponding to the identification information 1, or the offset value corresponding to the identification information 1 may be determined by the second subperiod corresponding to the identification information 2.
  • the value of offset 1 corresponding to identification information 1 is 0, and the value of offset 2 corresponding to identification information 2 is In Figure 17, Then the value of the offset 2 is 4.
  • the time domain position indicated by the second time domain index information B 0 is the first time unit
  • the value 4 of the offset 2 is added to obtain the time domain position as the fifth The time unit corresponds to the position in the entire transmission cycle including 6 time units.
  • the offset 1 when the value of the offset 1 corresponding to the identification information 1 is 0, the offset 1 may also be omitted, that is, no offset value is required when calculating the time domain resource corresponding to the identification information 1.
  • the offset 2 when the value of the offset 2 corresponding to the identification information 2 is 0, the offset 2 can also be omitted, that is, no offset value is required when calculating the time domain resource corresponding to the identification information 2.
  • the first identification information only needs to indicate the time domain position in the first sub-period, and usually the first sub-period is smaller than the entire transmission period, so compared to the first identification information, it needs to indicate the time domain position in the entire transmission period. , The number of bits required is less, which can save signaling overhead.
  • the second identification information only needs to indicate the time domain position in the second sub-period, and the second sub-period is usually smaller than the entire transmission period. Therefore, compared to the second identification information, it needs to indicate the time domain position in the entire transmission period. The number of bits required is small, which can save signaling overhead.
  • N tu is different.
  • different N tu is configured/notified for different identification information; or, the N tu determined by the network device according to the number of identification information bits, N seq and N freq is different. That is, the same N tu cannot be applied to RS-1 and RS-2 at the same time.
  • N tu1 and N tu2 can be performed by OAM or higher-level nodes
  • the notification/configuration can also be calculated based on the number of bits of the identification information 1 and the identification information 2 together with N seq and N freq .
  • the second network device can clearly distinguish between when RS-1 is received and when RS-2 is received, and no additional indication information is needed to distinguish.
  • the reference signal can be represented by RIM-RS.
  • RIM-RS can carry some information used for cooperation between network devices, which is recorded as the second type of additional information. This second type of additional information can be used to distinguish whether the network device sending the RIM-RS considers the interference cancellation used by the interfering station. enough.
  • the second type of additional information may be indicated by sequence index information. If certain sequences are used, for all network devices, the network equipment that sends RIM-RS considers that the interference cancellation used by the interfering station is sufficient. If other sequences are used, for all network devices, the RIM-RS sent is sufficient. The RS network equipment considers that the interference cancellation adopted by the interfering station is insufficient.
  • Method a The bit at the second designated position in the sequence index information is determined by the interference cancellation status indication information.
  • the interference cancellation status indication information is used to distinguish whether the interference cancellation adopted by the network device that sends the RIM-RS is sufficient.
  • the interference cancellation status indication information can be configured by a high-level node or OAM.
  • a high-level node or OAM can configure a network device with interference cancellation status distinguishing identification information to indicate the presence or absence of interference cancellation status indication information.
  • the first network device may determine the value of the interference cancellation state indication information according to its own interference situation. Considering that the interference cancellation status indication information indicates two states, the interference cancellation status indication information can occupy one bit, and the network device sending the RIM-RS considers whether the interference cancellation adopted by the interfering station is sufficient according to different values of the bits.
  • the two status indications of the interference cancellation status indication information can require the interfering station receiving the reference signal to implement a further interference cancellation strategy, or the interfering station receiving the reference signal is not required to implement a further interference cancellation strategy .
  • the second designated position can be the highest bit or the lowest bit in the sequence index information, or any designated position.
  • the interference cancellation status indication information determines the highest bit in the sequence index information, and E/N represents the highest bit.
  • the interference cancellation status indication information occupies 1 bit, and the network device determines whether the value of the 1 bit is 1 or 0 according to the interference status. For the interfered station, when the network device sending the reference signal thinks that the interference cancellation of the interfering station is insufficient, the value of this bit is 0 (or 1); when the network device sending the reference signal thinks the interference cancellation of the interfering station is sufficient When, the value of this bit is 1 (or 0).
  • the length of the identification information will be less than the length of the resource index information.
  • the first network device determines the value of the second designated position bit in the sequence index information according to the current interference state, and then determines the entire resource index information according to the identification information and the value of the second designated position bit, or determines the index information of the three domains , And then determine the transmission resources of each domain according to the resource index information.
  • the interference cancellation status indication information is used to determine the sequence used by the RIM-RS. Because the value of this bit is different when the interference cancellation state is different, the sequence used by the network device to send the RIM-RS representing the interference cancellation state is different. For the second network device on the receiving side, the received RIM-RS may also be different in sequence to determine the meaning of the interference cancellation state indicated by the received RIM-RS, for example, whether it is sufficient.
  • Method b distinguish different interference cancellation states through two identification information.
  • the two identification information includes first identification information and second identification information.
  • the first identification information corresponds to the first sequence index information
  • the second identification information corresponds to the second sequence index information.
  • the first sequence index information and the second sequence index information may be two different ranges of the entire sequence index information.
  • the two identification information can also be configured through high-level nodes or OAM.
  • the first network device may determine which identification information is used to determine the transmission resource according to the current interference state.
  • the first sequence index information and the second sequence index information respectively correspond to different interference cancellation states.
  • the first sequence index information is used to indicate that the network device sending the reference signal considers that the interference cancellation used by the interfering station is sufficient.
  • the second sequence index information is used to indicate that the network device sending the reference signal considers that the interference cancellation used by the interfering station is insufficient.
  • the first sequence index information and the second sequence index information may both be used to indicate the entire sequence resource, or the first sequence index information may be used to indicate sequence resources in the first range, and the second sequence The index information is used to indicate the sequence resource in the second range.
  • the first network device may directly determine the two sequence resources according to the first sequence index information and the second sequence index information, or may determine the first sequence according to the first sequence index information and the third offset, and according to the second sequence index information and The fourth offset determines the second sequence.
  • this method please refer to the introduction of the two situations of the above method 2, which will not be repeated here.
  • the sequence of the reference signal includes a first sequence and a second sequence, and one or both of the first sequence and the second sequence may be used.
  • the network device determines the first sequence corresponding to the first sequence index information from the candidate sequences according to the first sequence index information, and determines the second sequence corresponding to the second sequence index information from the candidate sequences according to the second sequence index information.
  • the offset may also be combined.
  • the network device determines the first sequence corresponding to the first sequence index information from the candidate sequence according to the first sequence index information and the third offset, and/or, according to the second sequence index information and
  • the fourth offset is to determine the second sequence corresponding to the second sequence index information from the candidate sequence.
  • the first identification information only needs to indicate the sequence in the sequence resource in the first range, and usually the sequence resource in the first range is smaller than the entire sequence resource, so compared to the first identification information, it needs to indicate the sequence in the entire sequence resource. , The number of bits required is less, which can save signaling overhead.
  • the second identification information only needs to indicate the sequence in the sequence resource in the second range, and usually the sequence resource in the second range is smaller than the entire sequence resource. Therefore, compared to the second identification information, it needs to indicate the sequence in the entire sequence resource. The number of bits required is small, which can save signaling overhead.
  • the first type of additional information can be combined with the second type of additional information to indicate.
  • the method of indicating the first type of additional information and the method of indicating the second type of additional information please refer to the above description.
  • the network device can distinguish different types through four identification information, including different reference signal types and different interference cancellation states.
  • the four identification information includes first identification information, second identification information, third identification information, and fourth identification information.
  • the time domain index information includes first time domain index information and second time domain index information.
  • the sequence index information includes first sequence index information and second sequence index information.
  • the first identification information corresponds to the first time domain index information and the first sequence index information
  • the second identification information corresponds to the second time domain index information and the first sequence index information
  • the third identification information corresponds to the first time domain index information
  • the second sequence index information and the fourth identification information correspond to the second time domain index information and the second sequence index information.
  • the function of indicating the second type of additional information usually needs to be sent by the interfered station, that is, RS-1 carries the second type of additional information, while RS-2 does not carry the information.
  • the identification information includes the third identification information;
  • the sequence index information includes the first sequence index information and the second sequence index information; where the first identification information corresponds to the first time domain index information and the first sequence index information.
  • the second identification information corresponds to the second time domain index information, and the third identification information corresponds to the first time domain index information and the second sequence index information.
  • the network device can determine which time units need to send RIM-RS according to its own interference situation, specifically determine whether to send RS-1 or RS-2, and determine the sequence of sending RIM-RS, and specifically determine to send RS-E and RS-N.
  • RS-E means that interference cancellation is sufficient
  • RS-N means that interference cancellation is insufficient or that there is no need to further improve interference cancellation strategies.
  • the parameter information configured by the network device may include the following forms.
  • the network device is configured with identification information, and when determining the time domain resource of the RIM-RS, it needs to be determined according to the bits of the reference signal difference information at the first designated position; when determining the code domain resources of RS-1 and RS-2, It needs to be determined according to the bits of the interference cancellation status indication information at the second designated location, or when determining the code domain resource of the RS-1, it needs to be determined according to the bits of the interference cancellation status indication information at the second designated location.
  • the network device is configured with two identification information, corresponding to RS-1 and RS-2 respectively; when determining the code domain resources of RS-1 and RS-2, it is also necessary to determine the bit of the interference cancellation status indication information at the second designated position When determining, or determining the code domain resource of RS-1, it also needs to be determined according to the bits of the interference cancellation state indication information at the second designated position.
  • the network device is configured with two identification information, corresponding to RS-E and RS-N respectively; when determining the time domain resource of the RIM-RS, it is also necessary to determine the bit of the reference signal difference information at the first designated position.
  • RS-E and RS-N can take effect at all times or only at the time corresponding to RS-1.
  • the network equipment is configured with four identification information, corresponding to RS-1E, RS-1N, RS-2E, RS-2N, respectively, corresponding to "interfered station + enough", “interfered station + not enough", " The situation of "interfering station + enough” and “interfering station + not enough”. Or, configure/notify the three identification information of the base station, corresponding to RS-1E, RS-1N, RS-2, respectively, corresponding to "interfered station + enough", “interfered station + insufficient", “interfering station” (or "Interfering station + enough").
  • the RIM-RS transmission/reception process can also carry the information of "distinguishing the interfering station or the interfered station", or the information that the reference signal is RS-1 or RS-2.
  • the information of "whether current interference cancellation is sufficient” can also be carried during the sending/receiving process of RIM-RS.
  • the first additional information and the second additional information help to achieve more accurate interference coordination between base stations.
  • an embodiment of the present application further provides a communication device 1900, which is configured to perform the operations performed by the first network device or the second network device in the foregoing method embodiment. operating.
  • the communication device 1900 includes a processing unit 1901 and a communication unit 1902.
  • the processing unit 1901 is configured to determine the transmission resource of the reference signal according to the identification information and the parameter information; wherein the transmission resource includes one or more of the sequence of the reference signal, frequency domain resources and time domain resources, and The identification information is used to identify the network device; the parameter information includes sequence indication information and frequency domain indication information, the sequence indication information is used to indicate one or more candidate sequences, and the frequency domain indication information is used to indicate one or more Candidate frequency domain resources;
  • the communication unit 1902 is configured to send the reference signal on the transmission resource.
  • processing unit 1901 is used to:
  • the time domain resource includes one or more uplink and downlink handover periods
  • the parameter information further includes one or more of the first indication information, the second indication information, or the third indication information;
  • the first indication information is used to indicate: the number of repeated transmissions of the reference signal;
  • the second indication information is used to indicate: the position of the symbol carrying the reference signal in the uplink and downlink switching period;
  • the third indication information is used to indicate: the uplink-downlink switching period used to carry the reference signal in the first uplink-downlink switching period and the second uplink-downlink switching period; wherein, the first uplink-downlink switching period and the second uplink-downlink switching period
  • the uplink and downlink switching periods are adjacent in the time domain, and the patterns of the first uplink and downlink switching period and the second uplink and downlink switching period are different.
  • processing unit 1901 is used to:
  • the sequence index information corresponding to the identification information is determined, and the sequence of the reference signal corresponding to the sequence index information is determined from the candidate sequence.
  • processing unit 1901 is used to:
  • the frequency domain index information corresponding to the identification information is determined, and the frequency domain resource corresponding to the frequency domain index information is determined from the candidate frequency domain resources.
  • processing unit 1901 is used to:
  • processing unit 1901 is used to:
  • the bit at the first designated position in the time domain index information is determined by reference signal difference information.
  • the identification information includes first identification information and second identification information;
  • the time domain index information includes first time domain index information and second time domain index information; wherein, the first identification information corresponds to The first time domain index information, and the second identification information corresponds to the second time domain index information.
  • the time domain resource includes a first time domain resource and a second time domain resource
  • the processing unit 1901 is used to:
  • the first time domain resource in the period is determined according to the first time domain index information, and/or the second time domain resource in the period is determined according to the second time domain index information.
  • the time domain resource includes a first time domain resource and a second time domain resource
  • the processing unit 1901 is used to:
  • the bit at the second designated position in the sequence index information is determined by interference cancellation state indication information.
  • the identification information includes first identification information and second identification information;
  • the sequence index information includes first sequence index information and second sequence index information; wherein, the first identification information corresponds to the first Sequence index information, where the second identification information corresponds to the second sequence index information.
  • the identification information includes third identification information and fourth identification information;
  • the sequence index information includes first sequence index information and second sequence index information; wherein,
  • the first identification information corresponds to the first time domain index information and the first sequence index information
  • the second identification information corresponds to the second time domain index information and the first sequence index information
  • the third identification information corresponds to the first time domain index information and the second sequence index information
  • the fourth identification information corresponds to the second time domain index information and the second sequence index information
  • the identification information includes third identification information;
  • the sequence index information includes first sequence index information and second sequence index information; wherein:
  • the first identification information corresponds to the first time domain index information and the first sequence index information
  • the second identification information corresponds to the second time domain index information
  • the third identification information corresponds to the first time domain index information and the second sequence index information.
  • the sequence includes a first sequence and a second sequence
  • the processing unit 1901 is used to:
  • the first sequence index information determine the first sequence corresponding to the first sequence index information from the candidate sequence, and/or determine from the candidate sequence according to the second sequence index information A second sequence corresponding to the second sequence index information.
  • the sequence includes a first sequence and a second sequence
  • the processing unit 1901 is used to:
  • the first sequence index information and the third offset determine the first sequence corresponding to the first sequence index information from the candidate sequence, and/or, according to the second sequence index information and the first sequence
  • the four offsets are used to determine the second sequence corresponding to the second sequence index information from the candidate sequence.
  • the processing unit 1901 is configured to determine the receiving resource according to parameter information, where the parameter information includes sequence indication information and frequency domain indication information, the sequence indication information is used to indicate one or more candidate sequences, and the frequency domain indication information is used for To indicate one or more candidate frequency domain resources;
  • the communication unit 1902 is configured to receive a reference signal on the receiving resource.
  • processing unit 1901 is further configured to:
  • the transmission resource includes one or more of a sequence, a frequency domain resource, and a time domain resource corresponding to the reference signal;
  • processing unit 1901 is used to:
  • the identification information is determined according to one or more of the sequence index information, the frequency domain index information, and the time domain index information.
  • an embodiment of the present application further provides a communication device 2000, which is used to implement the first network device and/or the second network device in the foregoing method embodiment. The operation performed by the network device.
  • the communication device 2000 includes a transceiver 2001, a processor 2002, and a memory 2003.
  • the memory 2003 is optional.
  • the transceiver 2001 is used to transmit messages or signaling with other communication devices, for example, to receive RRC messages from a source cell.
  • the processor 2002 is coupled with the memory 2003, and is configured to call a program in the memory 2003, and when the program is executed, the processor 2002 causes the processor 2002 to perform operations performed by the first network device or the second network device in the foregoing method embodiment.
  • the memory 2003 is used to store programs executed by the processor 2002.
  • the functional module processing unit 1901 in FIG. 19 may be implemented by the processor 2002, and the communication unit 1902 may be implemented by the transceiver 2001.
  • the processor 2002 When performing the function of the first network device, for example, the processor 2002 performs the following operations: determining the transmission resource of the reference signal according to the identification information and the parameter information; wherein the transmission resource includes the sequence of the reference signal and frequency domain resources And one or more of the time domain resources, the identification information is used to identify a network device; the parameter information includes sequence indication information and frequency domain indication information, and the sequence indication information is used to indicate one or more candidate sequences, The frequency domain indication information is used to indicate one or more candidate frequency domain resources.
  • the processor 2002 When performing the function of the first network device, for example, the processor 2002 performs the following operations: determining the receiving resource according to parameter information, where the parameter information includes sequence indication information and frequency domain indication information, and the sequence indication information is used to indicate One or more candidate sequences, and the frequency domain indication information is used to indicate one or more candidate frequency domain resources.
  • the processor 2002 may also execute other operations or functions performed by the first network device or the second network device in the foregoing method embodiments, and the repetitions are not described again.
  • the processor 2002 may be a central processing unit (CPU), a network processor (NP), or a combination of CPU and NP.
  • CPU central processing unit
  • NP network processor
  • the processor 2002 may further include a hardware chip.
  • the aforementioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the above-mentioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL) or any combination thereof.
  • CPLD complex programmable logic device
  • FPGA field-programmable gate array
  • GAL generic array logic
  • the memory 2003 may include a volatile memory (volatile memory), such as a random-access memory (random-access memory, RAM); the memory 2003 may also include a non-volatile memory (non-volatile memory), such as a flash memory (flash memory). memory), a hard disk drive (HDD) or a solid-state drive (SSD); the memory 2003 may also include a combination of the above types of memory.
  • volatile memory such as a random-access memory (random-access memory, RAM)
  • non-volatile memory such as a flash memory (flash memory).
  • flash memory flash memory
  • HDD hard disk drive
  • SSD solid-state drive
  • Some or all of the operations and functions performed by the first network device, or some or all of the operations and functions performed by the second network device described in the foregoing method embodiments of this application can be completed by chips or integrated circuits .
  • an embodiment of the present application further provides a chip, including a processor, for supporting the communication device to implement the first network device or the second network in the foregoing method embodiment The functions involved in the device.
  • the chip is connected to a memory or the chip includes a memory, and the memory is used to store the necessary program instructions and data of the communication device.
  • the embodiment of the present application provides a computer storage medium storing a computer program, and the computer program includes instructions for executing the foregoing method embodiments.
  • the embodiments of the present application provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the foregoing method embodiments.
  • the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

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Abstract

一种通信方法及装置，用以解决在超远距离干扰测量时如何发送及接收RIM-RS的问题。该方法包括：根据标识信息和参数信息，确定参考信号的传输资源；其中，所述传输资源包括所述参考信号的序列、频域资源和时域资源中的一个或多个，所述标识信息用于标识网络设备；所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源；在所述传输资源上发送所述参考信号。

Description

一种通信方法及装置
相关申请的交叉引用
本申请要求在2019年02月15日提交中国专利局、申请号为201910118041.3、申请名称为“一种通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术领域，尤其涉及一种通信方法及装置。
背景技术
在采用时分双工(time division duplex，TDD)的无线通信系统中，如新无线(new radio，NR)通信系统中，工作在同一频率的两个网络设备之间可能产生异向干扰(cross-link interference，CLI)。其中，所谓异向干扰是指，一个网络设备发送的下行(downlink，DL)信号对另一个网络设备接收的上行(uplink，UL)信号产生的干扰。大气波导效应使得网络设备发出的DL信号可以进行远距离传播，是造成CLI的原因之一。如图1所示，以网络设备为基站为例，两个网络设备用基站1和基站2表示。地理位置相隔很远的基站1和基站2，即使它们传输方向相同(也即同时接收上行/同时发送下行信号)，但由于它们之间距离较远，导致基站1发出的下行信号到达基站2时已经经过了明显的时延，该时延大于基站2的上下行切换的保护间隔(guard period，GP)，基站2已从下行发送方向切换到上行接收方向，因此远端基站1发送的下行信号干扰了本地基站2接收的上行信号，即产生了超远距离干扰(remote interference，RI)。
对于大气波导产生的干扰，其干扰距离和时延受地理位置和天气影响，因此具有很大的不确定性。为了对抗超远距离干扰，可以使用干扰站降低发射功率、干扰站减少下行发送符号数等方法，但实施干扰降低方案之前首先需要进行基站之间的测量，来识别超远距离干扰的存在，或者识别干扰基站。目前，通常采用收发参考信号(reference signal，RS)的方式检测异向干扰。用于测量超远距离干扰的参考信号可以称为超远距离干扰管理参考信号(remote interference management reference signal，RIM-RS)。在这个过程中，若某个干扰基站发送RIM-RS，则被干扰基站可以通过接收或检测到该RIM-RS来识别发送该RIM-RS的基站，或者，若某个被干扰基站发送RIM-RS，则干扰基站可以通过接收或检测到该RIM-RS来识别发送该RIM-RS的基站。
然而，如何发送和接收RIM-RS是需要解决的问题。
发明内容
本申请实施例提供一种通信方法及装置，用以解决在超远距离干扰测量时如何发送及接收RIM-RS的问题。
本申请实施例提供的具体技术方案如下：
第一方面，提供一种通信方法，该方法的执行主体可以是第一网络设备，该方法通过以下步骤实现：根据标识信息和参数信息，确定参考信号的传输资源；其中，所述传输资 源包括所述参考信号的序列、频域资源和时域资源中的一个或多个，所述标识信息用于标识网络设备；所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源；在所述传输资源上发送所述参考信号。通过该方法，第一网络设备可以根据标识信息和参数信息，确定发送参考信号的序列和时频资源，实现参考信号的发送，提升网络设备之间进行干扰协作的有效性。
在一个可能的设计中，标识信息和参数信息是高层节点或操作维护管理OAM配置的信息。
在一个可能的设计中，从所述候选序列中确定与所述标识信息对应的所述参考信号的序列；和/或，从所述候选频域资源中确定与所述标识信息对应的所述频域资源；和/或，根据所述标识信息，确定所述时域资源。通过本申请对参考信号的设计，可以使得在各种不同的网络配置和检测需求下，网络设备之间进行超远距离干扰测量时可以灵活进行参考信号的发送和接收。例如，NR中对RIM-RS序列数的需求可能随着运营商部署gNB的数量而不同，例如gNB数量较少时，可以减少RIM-RS的序列数，从而降低检测复杂度、提升检测概率。在NR中，在6GHz以下频段，NR最大可以支持到100MHz带宽，在NR系统的带宽内可能有多个RIM-RS在不同频域位置上进行传输，也即频分传输，上述方法能够支持频分传输。
在一个可能的设计中，所述时域资源可以为一个时间单元；所述时域资源或时间单元包括一个或多个上下行切换周期；所述参数信息还包括第一指示信息、第二指示信息或第三指示信息中的一项或多项；所述第一指示信息用于指示：所述参考信号的重复发送次数；所述第二指示信息用于指示：承载所述参考信号的符号在上下行切换周期中的位置；所述第三指示信息用于指示：第一上下行切换周期和第二上下行切换周期中用于承载所述参考信号的上下行切换周期；其中，所述第一上下行切换周期和第二上下行切换周期在时域上相邻，且所述第一上下行切换周期和所述第二上下行切换周期的样式不同。通过参考信号的灵活配置，可以适配不同的参考信号序列数、不同网络带宽的需求，并且能针对不同的重复增强需求、检测距离需求进行配置，使得不同部署特征的网络中的网络设备可以进行超远距离干扰测量。例如，能够适用NR中不同运营商部署gNB的数量可以从数万站到百万站的场景。
在一个可能的设计中，从所述候选序列中确定与所述标识信息对应的所述参考信号的序列，通过以下方式实现：确定所述标识信息对应的序列索引信息，从所述候选序列中确定与所述序列索引信息对应的所述参考信号的序列。
在一个可能的设计中，从所述候选频域资源中确定与所述标识信息对应的所述频域资源，通过以下方式实现：确定所述标识信息对应的频域索引信息，从所述候选频域资源中确定与所述频域索引信息对应的所述频域资源。
在一个可能的设计中，根据标识信息，确定所述时域资源，通过以下方式实现：确定所述标识信息对应的时域索引信息；确定周期指示信息指示的周期内与所述时域索引信息对应的所述时域资源，所述周期指示信息用于指示发送所述参考信号的周期。
在一个可能的设计中，根据标识信息，确定所述时域资源，通过以下方式实现：根据所述标识信息、所述序列指示信息和所述频域指示信息，确定所述参考信号的周期；确定所述标识信息对应的时域索引信息；确定所述周期内与所述时域索引信息对应的所述时域 资源。
在一个可能的设计中，所述时域索引信息中第一指定位置的比特由参考信号区别信息确定。这样，可以通过时分方式区分两种参考信号类型。
在一个可能的设计中，所述标识信息包括第一标识信息和第二标识信息；所述时域索引信息包括第一时域索引信息和第二时域索引信息；其中，所述第一标识信息对应所述第一时域索引信息，所述第二标识信息对应所述第二时域索引信息。有助于实现更精确的基站间干扰协作。
在一个可能的设计中，所述时域资源包括第一时域资源和第二时域资源；所述确定所述时域资源，可以通过以下方式实现：根据所述第一时域索引信息确定所述周期内的第一时域资源，和/或，根据所述第二时域索引信息确定所述周期内的第二时域资源。有助于实现更精确的基站间干扰协作。
在一个可能的设计中，所述时域资源包括第一时域资源和第二时域资源；所述确定所述时域资源，可以通过以下方式实现：根据所述第一时域索引信息与第一偏移量确定所述周期内的第一时域资源，和/或，根据所述第二时域索引信息与第二偏移量确定所述周期内的第二时域资源。这样，第一标识信息只需要指示在第一子周期中的时域位置，而通常第一子周期小于整个传输周期的，因此相比第一标识信息需要指示在整个传输周期中的时域位置，所需要的比特数较少，可以节省信令开销。第二标识信息只需要指示在第二子周期中的时域位置，而通常第二子周期小于整个传输周期的，因此相比第二标识信息需要指示在整个传输周期中的时域位置，所需要的比特数较少，可以节省信令开销。
在一个可能的设计中，所述第一偏移量由所述第二子周期确定，和/或，所述第二偏移量由所述第一子周期确定。
在一个可能的设计中，所述序列索引信息中第二指定位置的比特由干扰消除状态指示信息确定。这样，可以通过码分方式区分两种干扰消除状态。
在一个可能的设计中，所述标识信息包括第一标识信息和第二标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，所述第一标识信息对应所述第一序列索引信息，所述第二标识信息对应所述第二序列索引信息。有助于实现更精确的基站间干扰协作。
在一个可能的设计中，所述第一索引信息用于指示干扰站所使用的干扰消除已足够；所述第二索引信息用于指示干扰站所使用的干扰消除未足够，有助于实现更精确的基站间干扰协作。
在一个可能的设计中，所述标识信息包括第三标识信息和第四标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，所述第一标识信息对应所述第一时域索引信息和所述第一序列索引信息，所述第二标识信息对应所述第二时域索引信息和所述第一序列索引信息，所述第三标识信息对应所述第一时域索引信息和所述第二序列索引信息，所述第四标识信息对应所述第二时域索引信息和所述第二序列索引信息。有助于实现更精确的基站间干扰协作。
在一个可能的设计中，所述标识信息包括第三标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，所述第一标识信息对应所述第一时域索引信息和所述第一序列索引信息，所述第二标识信息对应所述第二时域索引信息，所述第三标识信息对应所述第一时域索引信息和所述第二序列索引信息。有助于实现更精确的基站间干 扰协作。
在一个可能的设计中，所述序列包括第一序列和第二序列；所述确定所述参考信号的序列，通过以下方式实现：根据所述第一序列索引信息，从所述候选序列中确定与所述第一序列索引信息对应的第一序列，和/或，根据所述第二序列索引信息，从所述候选序列中确定与所述第二序列索引信息对应的第二序列。有助于实现更精确的基站间干扰协作。
在一个可能的设计中，所述序列包括第一序列和第二序列；所述确定所述参考信号的序列，通过以下方式实现：根据所述第一序列索引信息与第三偏移量，从所述候选序列中确定与所述第一序列索引信息对应的第一序列，和/或，根据所述第二序列索引信息与第四偏移量，从所述候选序列中确定与所述第二序列索引信息对应的第二序列。这样，第一标识信息只需要指示在第一范围的序列资源中的序列，而通常第一范围的序列资源小于整个序列资源的，因此相比第一标识信息需要指示在整个序列资源中的序列，所需要的比特数较少，可以节省信令开销。第二标识信息只需要指示在第二范围的序列资源中的序列，而通常第二范围的序列资源小于整个序列资源的，因此相比第二标识信息需要指示在整个序列资源中的序列，所需要的比特数较少，可以节省信令开销。
第二方面，提供一种通信方法，该方法的执行主体为接收端，例如为第二网络设备，该方法通过以下步骤实现：根据参数信息确定接收资源，其中，所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源；在所述接收资源上接收参考信号。参数信息对第一网络设备和第二网络设备都适用的，第二网络设备可以根据参数信息，在候选时频域资源和序列集合中进行接收或检测，根据检测到的参考信号的序列和时频资源，确定发送该参考信号的第一网络设备的标识信息，从而实现了参考信号的接收。有助于提升网络设备之间进行干扰协作的有效性。
在一个可能的设计中，述方法还包括：确定所述参考信号的传输资源，所述传输资源包括所述参考信号对应的序列、频域资源和时域资源中的一个或多个；根据所述参考信号的传输资源，确定所述参考信号的标识信息，所述标识信息用于标识发送所述参考信号的网络设备。通过本申请对参考信号的设计，可以使得在各种不同的网络配置和检测需求下，网络设备之间进行超远距离时干扰测量时可以灵活进行参考信号的发送和接收。例如，NR中对RIM-RS序列数的需求可能随着运营商部署gNB的数量而不同，例如gNB数量较少时，可以减少RIM-RS的序列数，从而降低检测复杂度、提升检测概率。在NR中，在6GHz以下频段，NR最大可以支持到100MHz带宽，在NR系统的带宽内可能有多个RIM-RS在不同频域位置上进行传输，也即频分传输，上述方法能够支持频分传输。
在一个可能的设计中，根据所述参考信号的传输资源确定标识信息，通过以下方式实现：根据所述参考信号的序列，确定序列索引信息；根据所述参考信号的频域资源，确定频域索引信息；和/或，根据所述参考信号的时域资源，确定时域索引信息；根据所述序列索引信息、所述频域索引信息和所述时域索引信息中的一项或多项，确定所述标识信息。通过参考信号的灵活配置，可以适配不同的参考信号序列数、不同网络带宽的需求，并且能针对不同的重复增强需求、检测距离需求进行配置，使得不同部署特征的网络中的网络设备可以进行超远距离干扰测量。例如，能够适用NR中不同运营商部署gNB的数量可以从数万站到百万站的场景。
第三方面，提供一种通信装置，该装置具有实现上述第一方面、第二方面、第一方面 的任一种可能的设计或第二方面的任一种可能的设计的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，该装置可以是芯片或者集成电路。
在一个可能的设计中，该装置包括收发器和处理器，收发器用于与其他通信设备进行通信，处理器用于与存储器进行耦合，执行存储器存储的程序，当程序被执行时，所述装置可以执行上述第一方面、第二方面、第一方面的任一种可能的设计或第二方面的任一种可能的设计中所述的方法。
在一个可能的设计中，该装置还包括存储器，用于存储处理器执行的程序。
在一个可能的设计中，该装置为终端。
第四方面，提供一种芯片，该芯片与存储器相连或者该芯片包括存储器，用于读取并执行所述存储器中存储的软件程序，以实现如上述第一方面、第二方面、第一方面的任一种可能的设计或第二方面的任一种可能的设计中所述的方法。
第五方面，提供了一种通信系统，该通信系统包括第一网络设备和第二网络设备，第一网络设备用于执行上述第一方面和任一可能设计中的方法，和/或，第二网络设备用于执行上述第二方面和任一可能设计中的方法。
第六方面，提供一种计算机存储介质，存储有计算机程序，该计算机程序包括用于执行上述各方面和各方面的任一可能的设计中方法的指令。
第七方面，提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面和各方面的任一可能的设计中所述的方法。
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图1为现有技术中超远距离干扰示意图；
图2为本申请实施例中通信系统架构示意图；
图3为本申请实施例中通信方法流程示意图；
图4为本申请实施例中重复发送参考信号的示意图；
图5为本申请实施例中指示符号位置的示意图之一；
图6为本申请实施例中指示符号位置的示意图之二；
图7为本申请实施例中在不同位置重复发送参考信号的示意图；
图8为本申请实施例中上下行切换周期的样式示意图；
图9为本申请实施例中不同样式下参考信号的指示方式示意图之一；
图10为本申请实施例中不同样式下参考信号的指示方式示意图之二；
图11为本申请实施例中不同样式下参考信号的指示方式示意图之三；
图12为本申请实施例中资源索引信息的示意图；
图13为本申请实施例中资源索引信息与不同域的资源之间的映射关系的示意图；
图14为本申请实施例中资源索引信息与不同域的资源之间的映射关系的示意图之二；
图15为本申请实施例中第一种附加信息的指示方法示意图之一；
图16为本申请实施例中第一种附加信息的指示方法示意图之二；
图17为本申请实施例中第一种附加信息的指示方法示意图之三；
图18为本申请实施例中第二种附加信息的指示方法示意图之一；
图19为本申请实施例中通信装置结构示意图之一；
图20为本申请实施例中通信装置结构示意图之二。
具体实施方式
本申请实施例提供一种通信方法及装置，有助于网络设备之间进行超远距离干扰测量时灵活进行参考信号的发送和接收。其中，方法和装置是基于同一构思的，由于方法及装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。本申请实施例的描述中，“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。字符“/”一般表示前后关联对象是一种“或”的关系。本申请中所涉及的至少一个是指一个或多个；涉及的多个，是指两个或两个以上。另外，需要理解的是，在本申请的描述中，“第一”、“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。
本申请实施例提供的通信方法可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统，全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统，第五代(5th Generation，5G)系统，如新一代无线接入技术(new radio access technology，NR)，及未来的通信系统，如6G系统等。本申请涉及超远距离干扰的两个网络设备可以属于同一种通信系统，也可以属于不同的通信系统。
图2示出了本申请实施例提供的通信方法适用的一种可能的通信系统的架构，参阅图2所示，通信系统200中包括：该通信系统200包括多个网络设备。以包括两个网络设备为例，用网络设备201和网络设备202来表示。该通信系统200还可以包括多个终端。网络设备201和网络设备202分别服务于不同的终端。网络设备201和网络设备202之间存在干扰，可以通过发送和接收参考信号对干扰进行测量及协调。本申请中，通信系统可能包括多个网络设备，为方便说明，被其它网络设备所干扰的网络设备可以称为被干扰站，对其它网络设备造成干扰的网络设备可以称为被干扰站。可以理解，一个网络设备可能仅仅对其它网络设备所干扰，为被干扰站，也可能仅仅干扰其它网络设备，为干扰站。还可能该网络设备即对其它网络设备造成干扰，又被其它网络设备所干扰，则该网络设备可以根据一些判断规则确定自身为干扰站和/或被干扰站。
本申请实施例提供的通信方法可以应用于超远距离干扰的场景，具体的超远距离干扰的场景如图1所描述，在此不再赘述。本申请的方法当应用于超远距离干扰的场景时，网络设备之间发送或接收的参考信号可以应用于超远距离干扰的测量，该参考信号可以称为RIM-RS，当然也可以称为其它名称，本申请的参考信号可以以RIM-RS进行举例说明。本申请实施例中参考信号还可以携带其它信息，用于干扰站和被干扰站之间的干扰协调。在超远距离干扰的应用场景下，网络设备201和网络设备202可能地理位置相隔很远，因此网络设备202和网络设备202需要进行测量，可以通过RIM-RS的发送和接收来进行测量或干扰协调。
在通信系统200中，网络设备201和网络设备202，为具有无线收发功能的设备或可设置于该设备的芯片，该设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如， home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission and reception point，TRP或者transmission point，TP)等，还可以为5G(如NR)系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)等。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括射频单元(radio unit，RU)。CU实现gNB的部分功能，DU实现gNB的部分功能，比如，CU实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能，DU实现无线链路控制(radio link control，RLC)、媒体接入控制(media access control，MAC)和物理(physical，PHY)层的功能。由于RRC层的信息最终会变成PHY层的信息(即通过PHY层发送)，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令或PDCP层信令，也可以认为是由DU发送的，或者，由DU+RU发送的。可以理解的是，网络设备可以为CU节点、或DU节点、或包括CU节点和DU节点的设备。此外，CU可以划分为接入网RAN中的网络设备，也可以将CU划分为核心网CN中的网络设备，在此不做限制。
网络设备服务的终端，也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端设备、无线通信设备、用户代理或用户装置。本申请的实施例中的终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
可以理解，本申请实施例的方法也可以应用于其它干扰测量或干扰协调的应用场景。本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
下面将结合附图，对本申请实施例进行详细描述。
本申请实施例提供的通信方法涉及两个网络设备之间的参考信号的发送和接收，执行主体可以为发送端和接收端，也可以用第一网络设备和第二网络设备来表示。例如，第一网络设备为发送端，第二网络设备为接收端。
如图3所示，本申请提供的通信方法的具体流程如下所述。
S301、第一网络设备根据标识信息和参数信息，确定参考信号的传输资源。
这里所述的参考信号的传输资源可以包括该参考信号的序列、频域资源和时域资源中的一个或多个。
S302、第一网络设备在确定的传输资源上发送参考信号。
S303、第二网络设备根据参数信息确定接收资源。
S304、第二网络设备在确定的接收资源上接收参考信号。
其中S303和S301/S302之间没有严格的执行顺序，例如，S303可以在S302之前，与S301同步执行。
可选的，第一网络设备与第二网络设备之间存在异向干扰，所述参考信号用于检测所述异向干扰。
以下对上述方法中的概念作具体说明，以及对上述方法过程中的可选实现方式进行详细说明。
首先介绍一下参数信息。
第一网络设备和第二网络设备使用的参数信息可以是相同的。该参数信息可以包括一种或多种信息，该参数信息可以通过高层节点或操作维护管理(operation administration and maintenance，OAM)通知或配置给网络设备。也可能某些种类的参数信息通过协议规定。
该参数信息也可以称为全局参数，可以包括为多个网络设备配置的传输资源。该参数信息可以指示序列、时域或频域三个维度中的一个或多个维度的资源集合。一个实施例中，该参数信息包括序列指示信息，该序列指示信息用于指示一个或多个候选序列。另一个实施例中，该参数信息还包括频域指示信息，该频域指示信息用于指示一个或多个候选频域资源。本申请中，时域维度的资源可以有不同的实现方式。实现方式一，时域维度的资源可以通过参数信息来指示，即参数信息还包括时域资源的指示信息，该时域资源的指示信息用于指示一个或多个候选时域资源。实现方式二，时域维度的资源也可以在其他的信息中进行指示。即，由其他信息携带该时域资源的指示信息。实现方式三，时域资源的指示信息也可以不通过信息显性指示，即时域资源的指示信息为隐式指示，网络设备可以根据自身的标识以及序列指示信息和频域指示信息来确定时域维度的资源。隐式指示的方式将在下文中详细说明。可以理解的是，上述候选序列，候选频域资源和候选时域资源与参考信号相关。
本申请中网络设备在时域维度上周期性的发送参考信号，发送的周期即时域维度的资源，参考信号的周期中的每个时域资源也可以认为是网络设备的候选时域资源。多个网络设备在一个周期内可以通过时分的方式发送或接收参考信号，一个周期包括多个时间单元，一个网络设备占用一个时间单元。网络设备占用的该时间单元即网络设备发送参考信号的传输资源中的时域资源。在时域上网络设备的上行资源和下行资源交错占用，一个上下行切换周期中包括上行资源、下行资源和保护间隔。若一个上下行切换周期内允许发送一次参考信号，参考信号在仅一个上下行周期中的连续的若干个符号上发送，例如仅在连续的两个符号上发送，也即等价于上下行切换周期为发送参考信号的最小时间粒度。一个时间单元可能包括一个或多个上下行切换周期。也就是说，一个网络设备在一个周期内的一个时间单元上可能发送一个或多个参考信号。
基于此，以下介绍一下序列指示信息的功能和可选形式。
序列指示信息用于指示一个或多个候选序列，也可以说用于确定参考信号的序列集合，即在一个上下行切换周期内整个网络可以发送和接收的最大参考信号的集合。该序列指示信息可以指示候选序列的总数，也可以指示候选序列中每个具体的序列。
序列指示信息可以包括序列的初始相位指示信息或序列的初始种子指示信息。例如以RIM-RS基于Gold序列生成为例，序列指示信息可以指示各RIM-RS对应的Gold序列的初始相位，或生成初始相位所需的信息。表1给出一个序列指示信息的示例，进行举例说明。当然序列指示信息的表现形式可以有其它形式。
表1
Figure PCTCN2020073644-appb-000001
表1中序列指示信息指示了RIM-RS候选序列的总数为N 1，还指示了RIM-RS候选序列对应的Gold序列的初始相位。实际应用中，可以配置不同的N 1，例如N 1可以等于1、2、4、8、16等。当然RIM-RS序列的总数为N 1可以不指示，通过Gold序列的初始相位参数的个数确定。或者，序列指示信息也可以指示表示RIM-RS序列的总数所需的比特数，记为N seq。通常
Figure PCTCN2020073644-appb-000002
Figure PCTCN2020073644-appb-000003
表示对x进行上取整。
其中，C0、C1、……CN1-1可以是初始相位本身，也可以是生成初始相位所需的信息。若为生成初始相位所需的信息，网络设备可以根据C 0、C 1、……C N-1，以及其他时间相关的信息，共同生成应用于不同时间的RIM-RS序列，其他时间相关的信息例如发送周期号、上下行切换周期号、子帧号或时隙号等。如此，RIM-RS可以是随时间变化的，从而具有更好的保密性。
可选的，RIM-RS序列对应的Gold序列的的初始相位c init可以用下述公式(1)表示。
c init＝(2 10(c ct+1)(2n ID+1)+n ID)mod2 31   (1)
其中，n ID即为序列指示信息所指示的初始相位生成参数，c ct为时间单元的计数，或者为其他时间颗粒度的计数，如周期的计数。进一步地，可以预先规定c ct为每隔一定时间重置一次，例如每隔24小时在UTC 00:00时进行重置。
RIM-RS序列对应的Gold序列的的初始相位c init也可以用其他公式表示，例如下述公式(1-2)表示，或者由其他公式表示，只需要能根据序列指示信息指示的初始相位生成参数确定初始相位即可：
Figure PCTCN2020073644-appb-000004
若标准协议中已经预定义好RIM-RS的初始相位或者生成初始相位的所有参数，则无需高层节点或OAM通过参数信息再对候选序列进行配置。
以下介绍一下频域指示信息的功能和可选形式。
频域指示信息用于指示一个或多个候选频域资源，也可以说用于确定候选频域资源集合。该频域指示信息可以指示候选频域资源的总数，也可以指示具体的每个候选频域资源的频率位置。例如可以指示每个候选频域资源的起始位置的频率、终止位置的频率和占用带宽中的至少两项。
表2给出一个频域指示信息的示例，进行举例说明。当然频域指示信息的表现形式可以有其它形式。
表2
Figure PCTCN2020073644-appb-000005
表2中频域指示信息指示了参考信号的候选频域资源的总数为N 2，还指示了各个候选频域资源的起始位置和占用带宽B 2。各个候选频域资源分别用S 0……S N2-1表示，各个候选频域资源的起始位置用aa、bb和cc等表示。实际应用中，可以配置不同的N 2，例如N 2可以等于1、2、4、8、16等。当然，候选频域资源总数的信息N 2不是必须指示的，可以根据候选频域资源的个数确定。或者，频域指示信息也可以指示表示候选频域资源总数所需的比特数，记为N freq。通常
Figure PCTCN2020073644-appb-000006
其中，起始频率S 0、S 1、……S N2-1可以用绝对频率表示，或者资源块(resource block，RB)号表示，或子载波号表示。占用带宽B 2可以用绝对的频率宽度表示，或者连续的RB数表示，或者连续的子载波数表示。此外，也可以用各候选频域资源的结束位置替代RIM-RS带宽，同样也能起到指示参考信号带宽的效果。
需要注意的是，若标准协议中已经预定义好不同的系统带宽/载波带宽/候选频域资源总数的起始位置、终止位置和带宽中的至少两项，则无需高层节点或OAM通过参数信息再对候选频域资源进行配置。
若参数信息中还包括周期指示信息，以下介绍一下周期指示信息的功能和可选形式。周期指示信息可以在参数信息中指示，也可能通过其他信息来指示。
周期指示信息用于指示候选时域资源。该周期指示信息可以指示发送参考信号的周期的时间长度，例如，该周期指示信息指示一个周期中包括的时间单元的总数N 3。周期指示信息也可以指示周期长度所需的比特数，记为N tu。通常
Figure PCTCN2020073644-appb-000007
最小发送粒度上下行切换周期可以通过N 3*每个时间单元包括的上下行切换周期数来计算获得。又例如，该周期指示信息也可以指示一个周期中包括的上下行切换周期的总数。
考虑到参考信号可能需重复发送进行增强，或者考虑检测距离的远近效应因此需要在不同的上下行切换周期中处于不同的符号位置发送，那么一个时间单元可能包括多个上下行切换周期。网络设备在多个上下行切换周期上发送多个参考信号。
基于此，可选的，参考信息还可能包括以下一个或多个指示信息，来指示参考信号的具体发送形式。为区分说明，以下通过第一指示信息、第二指示信息和第三指示信息等来表示。
第一指示信息用于指示参考信号的重复发送次数。在一个上下行切换周期中，通常只有一个用于发送参考信号的时频资源，这里的重复发送是指在一个周期中重复发送参考信号的次数，也就是说，在一个周期中，在时间上连续的多个上下行切换周期中，在各上下行切换周期中的相同时频资源位置上发送相同的参考信号。以图4中的(a)和(b)为例，图4中的(a)示出了在一个周期中重复次数为1的发送参考信号的示例，也就是说在一个周期中仅在一个上下行切换周期上发送参考信号，不进行重复发送；图4中的(b)示出了在一个周期中重复次数为2的发送参考信号的示例，也就是说，在一个周期中的连续两个上下行切换周期上相同时频资源位置，发送两次相同的参考信号。参考信号以RIM-RS为例。
第一指示信息可以指示参考信号的重复发送次数N 4。实际应用中，可以配置不同的N 4，N 4为自然数或正整数。例如可以用N 4＝1来表示不重复发送，N 4＝2来表示在一个周期中的连续两个上下行切换周期上相同时频资源位置，发送两次相同的参考信号。可选的，第一指示信息还可以指示一个预定义列表的索引，每个索引代表了不同的重复次数。例如，可以采用N 4＝0来表示不重复发送，N 4＝1来表示在一个周期中的连续两个上下行切换周期 上相同时频资源位置，发送两次相同的参考信号。当然，第一指示信息还可以采用其它指示方式来指示参考信号的重复发送规则。
第二指示信息用于指示承载参考信号的符号在上下行切换周期中的位置，如用L 5来表示。例如，第二指示信息可以指示承载参考信号的符号在上下行切换周期中占用资源的起始位置、结束位置和占用符号总数中的至少两项，来表征承载参考信号的符号在上下行切换周期中的位置。在预定义了参考信号占的符号总数的情况下，第二指示信息可以指示承载参考信号的符号在上下行切换周期中占用资源的起始位置、结束位置中的一项，来表征承载参考信号的符号在上下行切换周期中的位置。以参考信号为RIM-RS为例，符号为正交频分复用(orthogonal frequency division multiplexing，OFDM)符号。当第二指示信息指示RIM-RS符号的位置时，可以有多种方法。例如，可以指示RIM-RS所占的多个OFDM符号中的首个符号或末位符号在一个上下行切换周期中的符号索引；又如，可以指示RIM-RS所占的多个OFDM符号中的首个符号或末位符号所在的时隙号，以及其在该时隙中的符号索引；再如，可以指示RIM-RS所占的多个OFDM符号中的首个符号或末位符号相对于某一参考位置的偏移符号数。该参考位置可以是某一OFDM符号，如一个上下行切换周期中的最后一个下行OFDM符号，或者第一个上行OFDM符号，参考位置可以是预先配置的，或者预定义的，也可以是包括在第二指示信息中的。
举例来说，如图5所示，在一个上下行切换周期中发送一次参考信号占用2个符号，则第二指示信息可以指示该2个符号的首个符号，或者指示该2个符号的末尾符号。具体的可以指示首个符号或者末尾符号的符号索引。例如，在图5中，一个上下行切换周期中的符号从0开始编号，发送参考信号占用的2个符号为49和50。那么第二指示信息可以指示49、指示50或指示占用符号数为2这三项中的至少两项。
进一步的，第二指示信息还可以指示多个不同的位置，即在不同上下行切换周期中发送参考信号的位置不同。这种情况下第二指示信息可以指示承载参考信号的符号在上下行切换周期中的位置的总数，还可以指示具体位置的信息。参考信号符号为RIM-RS符号为例，一种可能的表现形式如表3所示。第二指示信息指示RIM-RS符号位置个数N 5，还指示各个RIM-RS符号位置，例如位置个数为2，各个RIM-RS符号位置{L 5-0，L 5-1}来表示。类似的，RIM-RS符号位置个数N 5不是必须的，可以通过各个RIM-RS符号位置信息的数量来确定。
表3
RIM-RS符号位置个数 N 5
RIM-RS符号位置 {L 5-0，L 5-1}
举例来说，如图6所示，在一个时间单元中，在上下行切换周期1中参考信号符号的位置为位置1，在上下行切换周期2中参考信号符号的位置为位置2。
通过指示多个不同的参考信号符号位置，不同参考信号符号位置能够对应不同的检测距离，在多个上下行切换周期中发送不同符号位置上发送参考信号，能够扩大干扰站和被干扰站之间距离的检测范围。
若第一指示信息指示的参考信号的重复发送次数N 4为多次，且第二指示信息指示的参考信号的符号在上下行切换周期中的位置N 5也有多个，则在一个可能的实现方式中，一个时间单元包括的上下行切换周期为N 4*N 5。可以按照逐个在各上下行切换周期中的相同符 号位置重复发送N 4次的方式发送参考信号。具体来说，先在N 4个连续的上下行切换周期中的第一个符号位置上重复发送N 4次，再在N 4个连续的上下行切换周期中的第二个符号位置上重复发送N 4次，以此类推，直到对第N 5个符号位置重复N 4次为止。这样，在接收端，对于具有相同符号位置的参考信号可以进行合并检测，对参考信号进行集中重复有利于避免无线信道变化导致的合并性能下降。
举例来说，如图7所示，N 4＝2，N 4＝2，那么一个时间单元包括2*2＝4个上下行切换周期。两个参考信号符号位置用位置1和位置2表示。可以在上下行切换周期1和上下行切换周期2的位置1上均发送参考信号，在上下行切换周期3和上下行切换周期4的位置2上均发送参考信号。这样，在一个时间单元上，第一网络设备在四个上下行切换周期上共发送4个相同的参考信号。
现有技术中，上下行切换周期的样式可能不同，所谓样式即在上下行切换周期中上行资源、下行资源和保护间隔占用的位置及比例的设计。如图8所示，网络设备配置两个不同样式的上下行切换周期，可以记为样式1和样式2。样式1和样式2中的下行资源与上行资源之间的比例可以不相同。当配置了两个上下行切换周期样式时，样式1对应的上下行周期与样式2对应的上下行周期可交替循环。
考虑到上下行切换周期的样式可能不同，下面对不同样式下的参考信号指示方式进行详细说明。
总的来说，可以在不同样式中的某一个或部分样式上发送参考信号，也可以在不同样式中的每一个样式上均发送参考信号。无论采用哪种方式发送，均需要达到符合对参考信号重复发送次数以及参考信号符号位置的设计要求。
本申请中，参数信息还可以包括第三指示信息。通过第三指示信息来指示不同样式的上下行切换周期中用于承载参考信号的上下行切换周期。例如，有两个样式的上下行切换周期用第一上下行切换周期和第二上下行切换周期来表示，第一上下行切换周期和第二上下行切换周期在时域上相邻。第三指示信息用于指示第一上下行切换周期和第二上下行切换周期中用于承载参考信号的上下行切换周期。包括指示仅在第一上下行切换周期上承载参考信号，或指示仅在第二上下行切换周期上承载参考信号，或在第一上下行切换周期和第二上下行切换周期上均承载参考信号。
第三指示信息的一种表现形式如表4为例。表4中第三指示信息指示了用于承载参考信号的上下行切换周期的个数，用N 6表示，还指示了用于承载参考信号的上下行切换周期具体是哪个样式的上下行切换周期。第一上下行切换周期用P 1表示，第二上下行切换周期用P 2表示，假设仅在第二上下行切换周期上承载，则指示{P 2}。
表4
Figure PCTCN2020073644-appb-000008
类似的，用于承载参考信号的上下行切换周期的个数的信息不是必须的，第一网络设备可以根据承载参考信号的上下行切换周期的样式信息的个数来确定该信息。示例性地，第三指示信息还可以通过N 6＝1和{P 1}指示RIM-RS仅在第一个上下行切换周期中传输，或可以通过N 6＝2以及{P 1，P 2}或{‘Both’}指示RIM-RS在两个上下行切换周期中传输，具体形式不限。若预定义在网络设备配置了两个上下行切换周期时仅有一个上下行切换周期用 于传输参考信号，则第三指示信息可以仅指示在两个上下行切换周期中的具体某一个上发送参考信号。
考虑到上下行切换周期的样式不同，结合上述对参考信号重复发送次数以及参考信号符号位置的设计，下面对不同样式、不同重复次数和不同参考信号符号位置下参考信号指示方式进行举例说明。
第一种情况：
第一指示信息指示了参考信号的重复发送次数为N 4次，第二指示信息指示了参考信号的符号在上下行切换周期的位置总数为N 5，第三指示信息指示了承载参考信号的上下行切换周期仅有一个上下行切换周期，可以称为有效上下行切换周期。
这种情况下，第一网络设备应当在有效上下行切换周期中传输RIM-RS，如果有两个上下行切换周期，则每隔一个上下行切换周期传输RIM-RS。可以对于第1个符号位置重复N 4次，再对第2个符号位置重复N 4次，以此类推，直到对第N 5个符号位置重复N 4次为止。
如图9所示，假设重复次数N 4为2，参考信号符号位置数N 5为2，参考信号的符号在上下行切换周期的位置为位置1和位置2，上下行切换周期的样式为样式1和样式2为例，且两个上下行切换周期中仅后一个上下行切换周期为有效上下行切换周期。则参考信号在一个时间单元上发送的过程如图9中所示意。在一个时间单元上发送4个相同的参考信号。
第二种情况：
第一指示信息指示了参考信号的重复发送次数为N 4次，第二指示信息指示了参考信号的符号在上下行切换周期的位置总数为N 5，第三指示信息指示了承载参考信号的上下行切换周期有两个上下行切换周期。两个上下行切换周期均为有效上下行切换周期。一个时间单元包括的上下行切换周期数是单个样式的上下行切换周期时的2倍。当然以两个样式为例，实际应用中可能有大于两个的样式。
这种情况下，第一网络设备在两个有效上下行切换周期中传输RIM-RS。由于有两个样式的有效上下行切换周期，因此，可以先对于第1个符号位置重复2*N 4次，再对第2个符号位置重复2*N 4次，以此类推，直到对第N 5个符号位置重复2*N 4次为止。
如图10所示，假设重复次数N 4为2，参考信号符号位置数N 5为2，参考信号的符号在上下行切换周期的位置为位置1和位置2，上下行切换周期的样式为样式1和样式2为例，且两个上下行切换周期均为有效上下行切换周期。则参考信号在一个时间单元上发送的过程如图10中所示意。在一个时间单元上发送8个相同的参考信号。
第三种情况：
第一指示信息指示了参考信号的重复发送次数为N 4次，第二指示信息指示了参考信号的符号在上下行切换周期的位置总数为N 5，第三指示信息指示了承载参考信号的上下行切换周期有两个上下行切换周期。两个上下行切换周期均为有效上下行切换周期。一个时间单元包括的上下行切换周期数等于单个样式的上下行切换周期数。
这种情况下，第一网络设备可以不区分上下行切换周期的样式，可以理解与相同的样式的上下行切换周期的发送方法相同。即先对于第1个符号位置重复N 4次，再对第2个符号位置重复N 4次，以此类推，直到对第N 5个符号位置重复N 4次为止。
如图11所示，假设重复次数N 4为2，参考信号符号位置数N 5为2，参考信号的符号在上下行切换周期的位置为位置1和位置2，上下行切换周期的样式为样式1和样式2为 例，且两个上下行切换周期均为有效上下行切换周期。则参考信号在一个时间单元上发送的过程如图10中所示意。在一个时间单元上发送4个相同的参考信号。
综上，本申请中一个时间单元包括的上下行切换周期的个数可以通过以下方式确定。
当网络设备被配置为单个上下行切换周期样式时，一个时间单元包括的上下行切换周期的个数是可以由重复次数N 4、参考信号符号位置个数N 5确定，一个时间单元包括的上下行切换周期个数为N 4*N 5。
当网络设备被配置为m个上下行切换周期样式时，一个时间单元包括的上下行切换周期的个数是可以由重复次数N 4、参考信号符号位置个数N 5和有效的上下行切换周期确定的。仅有一个上下行切换周期为有效周期时，一个时间单元包括的上下行切换周期个数为2*N 4*N 5；当m个上下行切换周期均为有效周期时，一个时间单元包括的上下行切换周期个数为m*N 4*N 5或者N 4*N 5。例如，m＝2，当2个上下行切换周期均为有效周期时，一个时间单元包括的上下行切换周期个数为2*N 4*N 5或者N 4*N 5。
至此，以上对本申请中的参数信息进行了展开说明。参数信息是针对第一网络设备和第二网络设备均适用的。
对于第一网络设备来说，第一网络设备在发送参考信号之前，需要确定参考信号的传输资源。第一网络设备可以根据标识信息和参数信息来确定参考信号的传输资源。标识信息也可以是通过上层节点和OAM来配置的。
标识信息，也可以称为标识号或标识，主要用于识别和表征发送参考信号(RIM-RS)的网络设备。即用于标识第一网络设备的。标识信息可以有多种定义方式，例如可以是NR中gNB的标识(gNB ID)，也可以是把NR小区进行分组后的gNB组标识(set ID)，也可以是基于gNB ID或set ID进行进一步映射变换得到的标识，例如可以是gNB ID或set ID的高N位或低N位，还可以是其他预定义的标识；标识信息可以携带一定的协作信息；一个gNB可以有一个或多个标识号，例如一个gNB可以有两个标识号，分别是标识号1和标识号2，gNB作为被干扰站时对应标识号1，作为干扰站时对应标识号2，gNB可以根据自身的干扰/被干扰情况，确定发送对应标识号1和/或标识号2的RIM-RS。
第一网络设备根据标识信息，可以在参数信息指示的候选资源中选择自身发送参考信号的传输资源。
具体的，第一网络设备从序列指示信息指示的一个或多个候选序列中，确定与标识信息对应的参考信号的序列。第一网络设备从频域指示信息指示的一个或多个候选频域资源中确定与标识信息对应的频域资源。若参数信息中包括周期指示信息，或在其他信息中指示周期指示信息，则第一网络设备从周期指示信息指示的周期内确定与标识信息对应的时域资源。若参数信息中不包括周期指示信息，则第一网络设备可以根据标识信息、序列指示信息和频域指示信息，确定参考信号的周期，再确定在周期内与标识信息对应的时域资源。
其中，标识信息如何对应到候选资源中第一网络设备发送参考信号的传输资源。可以通过以下方式实现。
根据参数信息，可以确定一个由序列、频域资源、时域资源构成的{码、频、时}的资源空间。对于该资源空间中的每一个资源，都对应一个资源的索引。记n seq为序列的索引，n freq为频域索引，n tu为时域索引，则该{n seq,n freq,n tu}的组合可以作为{码、频、时}的资源空间的资源索引，具体不同取值{n seq,n freq,n tu}对应码、频、时资源空间中的不同的资 源。
可选地，也可以用一个数字n idx作为的该码、频、时的资源空间中的资源的资源索引，例如，n idx与{n seq,n freq,n tu}的关系可以为公式(2)：
Figure PCTCN2020073644-appb-000009
其中，N freq为表示频域资源位置的个数所需要的比特数，N tu为表示一个参考信号传输的周期中的时间单元数所需要的比特数。通常，
Figure PCTCN2020073644-appb-000010
N 2为候选频域资源的位置个数，
Figure PCTCN2020073644-appb-000011
表示对x进行上取整；比如，候选频域资源的位置共有3个，则N freq的取值为2。N tu的情况也类似，通常
Figure PCTCN2020073644-appb-000012
N 3为一个参考信号传输周期中包括的时间单元个数。
公式(2)中n idx与{n seq,n freq,n tu}的关系可以由图12表示，假设n idx的比特数为N，为表示序列的个数所需要的比特数N seq为3，通常
Figure PCTCN2020073644-appb-000013
而N freq为2：
而反过来，n seq、n freq、n tu与n idx之间的映射关系则可以用公式(3)～公式(6)表示：
Figure PCTCN2020073644-appb-000014
Figure PCTCN2020073644-appb-000015
Figure PCTCN2020073644-appb-000016
考虑到n seq总是小于或等于
Figure PCTCN2020073644-appb-000017
上述公式(5)也可以写成：
Figure PCTCN2020073644-appb-000018
应当注意的是，映射关系中的标识信息的N比特与“用于确定序列索引的N seq比特”、“用于确定频域资源位置的N freq比特”、“用于确定时域资源的N tu比特”之间的对应关系也可以具有别的形式，并非限定N seq、N freq、N tu一定是N比特的高N seq位、次N freq位、低N tu位比特，只需要让他们之间具有明确的一一对应关系即可。例如N seq、N freq、N tu也可以是标识信息N比特的低N seq位、次N freq位、高N tu位比特，或者低N seq位、高N freq位、中间N tu位。相应的数学关系也可以以类似公式(2)的方式进行表示。
第一网络设备可以根据标识信息确定一个资源索引信息，这里的资源索引信息为指示{码、频、时}的资源空间的资源索引，可以认为是上述n idx。可选的，标识信息可以等同于资源索引信息，也可以采用倒序或取模等运算方式建立标识信息和资源索引信息的映射关系。另外，第一网络设备也可以根据标识信息确定不同域的资源索引信息。例如，根据标识信息的第一部分来确定序列索引信息，根据标识信息的第二部分来确定频域索引信息，根据标识信息的第三部分来确定时域索引信息。
第一网络设备可以确定标识信息对应的序列索引信息，从候选序列中确定关于序列索引信息对应的参考信号的序列；也可以确定标识信息对应的频域索引信息，从候选频域资源中确定与频域索引信息对应的频域资源。若网络设备被通知或配置了周期指示信息，则第一网络设备可以确定标识信息对应时域索引信息，确定周期指示信息指示的周期内与时域索引信息对应的时域资源。若网络设备没有被通知或配置，则网络设备可以通过隐式方式来确定周期。即第一网络设备根据标识信息、序列指示信息和频域指示信息确定参考信号的周期，确定标识信息对应的时域索引信息，确定周期内与时域索引信息对应的时域资源。
举例来说，如图13所示，资源索引信息与不同域的资源之间的映射关系如下。该资 源索引信息可以为整体的资源索引，也可以分为序列索引信息、频域索引信息和时域索引信息。例如，资源索引包括N比特，用A N-1A N-2A N-3…A 1A 0表示。其中假设一个上下行切换周期中的参考信号序列个数最多为8条，频域候选位置数为4，时域周期为2 N-5个时间单元。网络设备被配置单个上下行切换周期样式，每个时间单元包括4个上下行切换周期。序列索引信息N seq为资源索引信息的高3比特，该3比特的具体取值n seq决定了第一网络设备发送的参考信号序列是8个序列中的哪一个；例如该3比特n seq取值为‘011’，也即十进制中的3，则第一网络设备发送的是索引为3的参考信号序列。频域索引信息N freq为资源索引信息的第4～5比特，该2比特的具体取值n freq决定了第一网络设备发送参考信号时使用4个候选频域资源中的哪一个；例如该2比特取值n freq为‘01’，也即十进制中的1，则第一网络设备在索引为1的候选频域资源的位置上发送参考信号。N tu为资源索引信息的低N-5比特；该N-5比特的具体取值n tu决定了第一网络设备发送参考信号所在的时间单元是2 N-5个时间单元中的哪一个，也即参考信号的时间单元位置；也可以认为该值n tu表示了时间单元的索引，或者认为它指示了参考信号所在的时间单元与该周期起始位置之间的偏移。
图13中，一个时间单元包括4个上下行切换周期，这是由于参考信号RIM-RS重复次数为2，并且存在2个参考信号符号位置所决定的。图13中以单个样式的上下行周期为例，若第一网络设备配置了两个上下行切换周期，则时间单元所包括的上下行切换周期数还与有效上下行切换周期有关。
还应当注意的是，本申请中第一网络设备可以根据标识信息确定参考信号的序列、频域资源和时域资源中的一个或多个。例如，若候选频域资源只有1个，此时N freq＝0，也即参考信号的频域资源不需要指示，是唯一的。在这种情况下，可以不根据标识信息确定频域索引信息，也即不根据标识信息确定频域资源，而仅根据标识信息确定其对应的参考信号的序列和时域资源。类似地，若参考信号候选的序列只有1个，此时N seq＝0，参考信号对应的序列不需要指示。在这种情况下，可以不根据标识信息确定序列索引信息，也即不根据标识信息确定序列，而仅根据标识信息确定其对应的参考信号的频域资源和时域资源。在一种可能的情况中，候选频域资源只有1个，且若参考信号候选的序列只有1个，也即N freq＝0，N seq＝0，也即参考信号的频域资源和序列都不需要指示，在这种情况下，可以不根据标识信息确定序列索引信息或频域索引信息，也即不根据标识信息确定序列或频域资源，而仅根据标识信息确定其对应的参考信号的时域资源。
第一网络设备确定标识信息对应的资源索引信息，即可以根据资源索引信息确定各个域的资源。如图14所示，标识信息可以直接为资源索引信息。例如，第一网络设备的资源索引信息为A N-1A N-2A N-3…A 1A 0的N比特信息，标识信息为B N-1B N-2B N-3…B 1B 0，若A N-1A N-2A N-3…A 1A 0取值为1101001111，则1101001111同时也是该标识信息所对应的参考信号的资源索引A N-1A N-2A N-3…A 1A 0的取值。
若参数信息或其他信息中均没有包括周期指示信息，则第一网络设备根据标识信息的比特数，以及序列索引信息和频域索引信息来确定剩下的比特数，根据剩下的比特数S，根据2 S来确定周期。再根据剩下的比特对应的取值来确定参考信号在一个周期中的时间单元。
对于接收侧来说，第二网络设备根据参数信息确定接收资源，该接收资源相当于根据参数信息确定的由序列、频域资源、时域资源构成的{码、频、时}的资源空间。第二网络 设备在接收资源上接收或检测到参考信号。第二网络设备确定接收到参考信号的传输资源。通过在接收参考信号时的符号确定第一网络设备发送该参考信号时的符号，确定接收到该参考信号的频域资源。根据该参考信号确定该参考信号对应的序列。第二网络设备根据该参考信号的传输资源中一个或多个域，确定参考信号的标识信息。确定标识信息的方法可以参见第一网络设备根据标识信息确定传输资源的方法，反推即可。例如，第二网络设备根据参考信号的序列，确定序列索引信息；根据参考信号的频域资源，确定频域索引信息；和/或，根据参考信号的时域资源，确定时域索引信息；根据序列索引信息、频域索引信息和时域索引信息中的一项或多项，确定第一网络设备的标识信息。在一种可能的情况中，第二网络设备的接收资源对应的时域资源为上行资源，第一网络设备的传输资源对应的时域资源为下行资源，两者并不同，这是由于超远即传输带来的时延所致。
综上，通过上述方法，第一网络设备可以根据标识信息和参数信息，确定发送参考信号的序列和时频资源，参数信息对第一网络设备和第二网络设备都适用的，第二网络设备可以根据参数信息，在候选时频域资源和序列集合中进行接收或检测，根据检测到的参考信号的序列和时频资源，确定发送该参考信号的第一网络设备的标识信息，从而实现了参考信号的发送和接收。进一步的，通过本申请对参考信号的设计，可以使得在各种不同的网络配置和检测需求下，网络设备之间进行超远距离干扰测量时可以灵活进行参考信号的发送和接收，实现干扰站/被干扰站的检测与识别。通过参考信号的灵活配置，可以适配不同的参考信号序列数、不同网络带宽的需求，并且能针对不同的重复增强需求、检测距离需求进行配置，使得不同部署特征的网络中的网络设备可以进行超远距离干扰测量。
进一步的，本申请实施例还可以通过参考信号携带更多的附加信息，例如，通过参考信号指示发送参考信号的网络设备是干扰站还是被干扰站，又例如，通过参考信号指示干扰站所采用的干扰消除是否已经足够。以下将进行具体说明。
第一种附加信息：
在超远距离干扰测量的应用场景下，参考信号可用RIM-RS表示。RIM-RS可以携带一些用于网络设备间协作的信息，记为第一种附加信息，该第一种附加信息可以用于区分发送该RIM-RS的网络设备是“被干扰站”或“干扰站”的信息。或者，该第一种附加信息用于区分该RIM-RS的类型是RS-1或RS-2。
具体地，RIM-RS可以分为两类，一类是由“被干扰站”发送的，记为RS-1，另一类是由“干扰站”发送的，记为RS-2。在这种情况下，对于检测到RIM-RS的网络设备来说，可以知道发出RIM-RS的网络设备是干扰站还是被干扰站，从而可以调整干扰消除策略。例如，一个网络设备若在整个RIM-RS发送周期中检测到RS-1，说明该网络设备很可能对其他网络设备造成明显干扰，则需要进行干扰消除。有些网络设备既是干扰站也是被干扰站，可以即发送RS-1，也发送RS-2。
本申请实施例中，第一种附加信息可以通过时域索引信息进行指示。在某些时间内，对于所有的网络设备而言，发送和/或接收到的RIM-RS都是RS-1；在另一些时间内，对于所有网络设备而言，其发送和/或接收到的RIM-RS都是RS-2。
以下介绍两种可能的第一种附加信息的指示方法，均通过时域索引信息来实现。
方法1、时域索引信息中第一指定位置的比特由参考信号区别信息确定。参考信号区别信息用于区分发送该RIM-RS的网络设备是“被干扰站”或“干扰站”。或者，该参考信号区别信息用于区分该RIM-RS的类型是RS-1或RS-2。
该参考信号区别信息可以通过高层节点或OAM进行配置，例如高层节点或OAM可以配置网络设备一个参考信号区别标识信息，用于指示参考信号区别信息的存在与否。第一网络设备可以根据自身的干扰情况，确定该参考信号区别信息的取值。考虑到参考信号区别信息指示两种类型，则参考信号区别信息可以占用一个比特，根据比特的不同取值来区分发送该RIM-RS的网络设备是“被干扰站”或“干扰站”，或者，区分该RIM-RS的类型是RS-1或RS-2。例如“RS-1”时该比特的取值为0(或1)，“RS-2”时该比特的取值为1(或0)。
参考信号区别信息的值用于确定发送RIM-RS的时间，因为RIM-RS为RS-1或RS-2时该比特的取值不同，使得RS-1和RS-2使用的时域资源并不相同。对于接收侧的第二网络设备而言，也可以通过接收到RIM-RS的时间不同，确定接收到的RIM-RS是由被干扰站发出还是干扰站发出的。
第一指定位置可以是时域索引信息中的最高位或最低位，或任意指定位置。基于图14中的举例，如图15所示，参考信号区别信息确定时域索引信息中的最高位，用RS1/2表示该最高位比特。这样有助于在时间上集中区分RS-1和RS-2。例如，由1比特参考信号区别信息“RS-1/RS-2的区分比特”作为高位和标识信息的低10比特作为低位所组成的11比特，共表示2048个时间单元。则前1024个时间单元对应的是RS-1，后1024个时间单元对应的是RS-2，从而可以更快地完成对于干扰站或被干扰站所发送的RIM-RS的遍历。当然，该参考信号区别信息“RS-1/RS-2的区分比特”也可以作为用于确定RIM-RS时间单元低位比特，也是可行的。
在方法1中，标识信息的长度就会小于资源索引信息的长度。第一网络设备根据当前的干扰状态确定时域索引信息中第一指定位置比特的值，再根据标识信息和该第一指定位置比特的值确定整个资源索引信息，或者说确定三个域的索引信息，再根据资源索引信息确定各个域的传输资源。
方法2、通过两个标识信息来区分不同的参考信号类型，或者区分发送参考信号的网络设备为干扰站还是被干扰站。
两个标识信息包括第一标识信息和第二标识信息，第一标识信息对应第一时域索引信息，第二标识信息对应第二时域索引信息。
两个标识信息也可以是通过高层节点或OAM来配置的。第一网络设备可以根据当前的干扰状态确定使用哪个标识信息来确定传输资源。其中，第一时域索引信息和第二时域索引信息分别对应不同的参考信号类型，或者区分发送参考信号的网络设备为干扰站还是被干扰站。例如第一时域索引信息用于指示发送参考信号的网络设备为干扰站，或参考信号的类型为RS-1。第二时域索引信息用于指示发送参考信号的网络设备为被干扰站，或参考信号的类型为RS-2。
该方法2的情况1中，第一时域索引信息和第二时域索引信息均用于指示整个传输周期的时域资源。网络设备可以根据第一时域索引信息或第二时域索引信息直接确定在整个传输周期内的时域资源的位置。网络设备在确定自身为干扰站时，选择第一标识信息来确定传输资源，在确定自身为被干扰站时，选择第二标识信息来确定传输资源。具体的，网络设备根据第一标识信息对应的第一时域索引信息确定周期内的第一时域资源，并在第一时域资源上传输参考信号。或者，根据第二标识信息对应的第二时域索引信息确定周期内的第二时域资源，并在第二时域资源上传输参考信号。
举例来说，如图16所示，一个周期内包括8个时间单元，可分别对应的取值为000～111，第一标识信息(用标识信息1标识)的低3位B 2～B 0对应第一时域索引信息的3个比特A 2～A 0，第一时域索引信息对应周期的前4个时间单元。第二标识信息(用标识信息2标识)的低3位B 2～B 0对应第二时域索引信息的3个比特A 2～A 0，第二时域索引信息对应周期的后4个时间单元。标识信息1的低3比特B 2～B 0的可取值范围与标识信息2的低3比特B 2～B 0的可取值范围并不相同，分别为000～011和100～111，从而保证RS-1和RS-2可以在时间上进行区分。
通过方法2的情况1的方法，网络设备可以从任意一个标识信息即可推断出全局周期的时间长度，并且所有的标识信息可以共用同一个映射方式，实现简单。映射方式即比特取值到周期内的候选时域资源的映射关系。
上述方法2的情况1的方法，第一标识信息和第二标识信息的比特数是相等的，或者第一时域索引信息与第二时域索引信息的比特数是相等的。这也是由于它们所指示的周期是同一个周期(即整个参考信号的传输周期)所决定的。从发送RIM-RS的角度看，这种方法下，与实施例一并无区别。但需要注意的是，当通知/配置网络设备多个的标识信息时，应保证RS-1所可能使用的时间单元与RS-2所可能使用的时间单元是不同的。从接收RIM-RS的角度看，为了让接收到RIM-RS的第二网络设备可以识别该RIM-RS属于RS-1或RS-2，还可以通知/配置第二网络设备一个时间范围区分信息，用于区分RS-1和RS-2所可能使用的时间范围。例如在图11中，为了通知在8个时间单元的周期中，前4个时间单元中的RIM-RS是RS-1，后4个时间单元中的RIM-RS是RS-2，时间范围区分信息可以为：{RS-1:000～011，RS-2:100～111}。时间范围区分信息也可以是通知一个RS-1与RS-2所占的时间周期的比例，如{1:1}；又或者是通知RS-1和/或RS-2的结束/起始时间单元的位置，等等，只需要让第二网络设备可以根据检测到RIM-RS的时间可以判断它属于RS-1还是RS-2即可。
本文的描述中区分参考信号的类型是RS-1还是RS-2，可以等价为区分发送参考信号的网络设备是干扰站还是被干扰站。
在方法2中，还有一种情况2是，第一时域索引信息用于指示第一子周期的第一时域资源，第二时域索引信息用于指示第二子周期的第二时域资源。第一子周期和第二子周期构成整个传输周期，也即整个周期。网络设备根据第一时域索引信息能够确定在第一子周期内的位置，然后再根据第一偏移量来确定整个传输周期的时域资源位置；根据第二时域索引信息确定在第二子周期内的位置，然后再根据第二偏移量来确定整个传输周期的时域资源位置。第一偏移量由第二子周期确定，第二偏移量由第一子周期确定。
举例来说，如图17所示，一个周期内包括6个时间单元，第一子周期内包括4个时间单元，第二子周期内包括2个时间单元。第一标识信息(即标识信息1)有7比特，其中，2个比特(例如低N tu1＝2位)的取值指示了参考信号在第一子周期(4个时间单元)中的位置。例如，00代表在4个时间单元内的第一个时间单元；01代表在4个时间单元内的第二个时间单元。第二标识信息(即标识信息2)有6比特，其中，1个比特(例如低N tu2＝1位)的取值指示了参考信号在第二子周期(2个时间单元)中的位置。例如，0代表在第二子周期2个时间单元内的第一个时间单元；1代表在第二子周期2个时间单元内的第二个时间单元。N tu1和N tu2分别为表示第一子周期RS-1的周期和第二子周期RS-2的周期所需的比特数。而参考信号的整个传输周期为RS-1的周期和RS-2的周期之和，共 6个时间单元。
该6个时间单元可由资源索引低3比特即时域资源索引A 2～A 0进行指示。根据标识信息确定资源索引信息(时域资源索引信息)时，对于RS-1而言，网络设备可以用第一标识信息对应的第一时域索引信息B 1B 0加上第一偏移值(记为偏移1)确定第一时域资源，可选的，可先确定时域资源索引A 2～A 0，再进一步确定第一时域资源。第一时域资源为前4个时间单元中的一个时间单元。对于RS-2而言，网络设备可以用第二标识信息对应的第二时域索引信息B 0加上第二偏移值(记为偏移2)确定第二时域资源，可选的，可先确定时域资源索引A 2～A 0，再进一步确定第二时域资源。第二时域资源为后2个时间单元中的一个时间单元。
在本方法中，标识信息2对应的偏移值可以由标识信息1对应的第一子周期确定，或者，标识信息1对应的偏移值可以由标识信息2对应的第二子周期确定。一种可行的实现方式中，标识信息1对应的偏移1的取值为0，而标识信息2对应的偏移2的取值为
Figure PCTCN2020073644-appb-000019
图17中，
Figure PCTCN2020073644-appb-000020
则偏移2的取值为4，当第二时域索引信息B 0指示的时域位置为第一个时间单元时，加上偏移2的取值4，获得时域位置为第5个时间单元，对应了包括6个时间单元的整个传输周期中的位置。特别地，标识信息1对应的偏移1的取值为0的情况下，也可以省略偏移1，也即计算标识信息1对应的时域资源时不需要使用任何偏移值。类似地，标识信息2对应的偏移2的取值为0的情况下，也可以省略偏移2，也即计算标识信息2对应的时域资源时不需要使用任何偏移值。
这样，第一标识信息只需要指示在第一子周期中的时域位置，而通常第一子周期小于整个传输周期的，因此相比第一标识信息需要指示在整个传输周期中的时域位置，所需要的比特数较少，可以节省信令开销。第二标识信息只需要指示在第二子周期中的时域位置，而通常第二子周期小于整个传输周期的，因此相比第二标识信息需要指示在整个传输周期中的时域位置，所需要的比特数较少，可以节省信令开销。
应当注意的是，在该方法2的情况2中，第一标识信息和第二标识信息的比特数并不相同。这也是由于它们所指示的周期是各自的子周期所导致的。因此，第一标识信息和第二标识信息的全局参数中，N tu并不相同。可选的，在配置/通知网络设备时就为不同的标识信息配置/通知了不同的N tu；或者是，网络设备根据标识信息比特数、N seq和N freq所确定的N tu不同。即，不能用同一个N tu同时应用于RS-1和RS-2。因此，不同的标识信息对应有不同的N tu，如标识信息1对应的RS-1对应N tu1，标识信息2对应的RS-2对应N tu2；N tu1和N tu2可以由OAM或高层节点进行通知/配置，也可以分别根据标识信息1和标识信息2的比特数与N seq、N freq一起进行推算得出。
在该方法2的情况2中，从发送RIM-RS的角度看，确定RS-1在每一个周期中的时域位置时，不仅需要考虑RS-1在第一子周期中的位置，还需要考虑RS-2的第二子周期的影响。因为从整个时域上看，RS-1的实际传输周期为RS-1的第一子周期与RS-2的第二子周期之和。RS-2也同理。例如，可以通过“RS-2在第二子周期中的位置”与第二偏移值共同确定RS-2实际传输周期的时间单元位置，而该第二偏移值是由RS-1的周期确定的。
从接收RIM-RS的角度看，只要每个网络设备的RS-1的周期相同，也即第一子周期相同，每个网络设备的RS-2周期相同，也即第二子周期相同，则第二网络设备可以清楚地区分哪些时间中接收到的是RS-1，哪些时间中接收到的是RS-2，可以不需要额外的指示信息区分。
以上描述举例均以RS-1在前、RS-2在后的时域顺序进行示例，但本申请不限制其时域资源的先后顺序。
第二种附加信息：
在超远距离干扰测量的应用场景下，参考信号可用RIM-RS表示。RIM-RS可以携带一些用于网络设备间协作的信息，记为第二种附加信息，该第二种附加信息可以用于区分发送该RIM-RS的网络设备认为干扰站所采用的干扰消除是否足够。
本申请实施例中，第二种附加信息可以通过序列索引信息进行指示。若采用某些序列，对于所有的网络设备而言，发送的RIM-RS的网络设备认为干扰站所采用的干扰消除已足够，若采用另一些序列，对于所有网络设备而言，发送的RIM-RS的网络设备认为干扰站所采用的干扰消除不足够。
以下介绍两种可能的第二种附加信息的指示方法，均通过序列索引信息来实现。
方法a、序列索引信息中第二指定位置的比特由干扰消除状态指示信息确定。干扰消除状态指示信息用于区分发送该RIM-RS的网络设备所采用的干扰消除是否足够。
该干扰消除状态指示信息可以通过高层节点或OAM进行配置，例如高层节点或OAM可以配置网络设备一个干扰消除状态区别标识信息，用于指示干扰消除状态指示信息的存在与否。第一网络设备可以根据自身的干扰情况，确定该干扰消除状态指示信息的取值。考虑到干扰消除状态指示信息指示两种状态，则干扰消除状态指示信息可以占用一个比特，根据比特的不同取值来区分发送该RIM-RS的网络设备认为干扰站所采用的干扰消除是否足够。
对于干扰站，可以通过该干扰消除状态指示信息的两种状态指示，要求接收该参考信号的干扰站施行进一步的干扰消除策略，或者，不要求接收该参考信号的干扰站施行进一步的干扰消除策略。
第二指定位置可以是序列索引信息中的最高位或最低位，或任意指定位置。基于图14中的举例，如图18所示，干扰消除状态指示信息确定序列索引信息中的最高位，用E/N表示该最高位比特。例如，该干扰消除状态指示信息占用1比特，网络设备根据干扰状态，确定该1比特的取值为1还是0。对于被干扰站来说，当发送参考信号的网络设备认为干扰站的干扰消除不足够时，该比特的取值为0(或1)；当发送参考信号的网络设备认为干扰站的干扰消除足够时，该比特的取值为1(或0)。
在方法a中，标识信息的长度就会小于资源索引信息的长度。第一网络设备根据当前的干扰状态确定序列索引信息中第二指定位置比特的值，再根据标识信息和该第二指定位置比特的值确定整个资源索引信息，或者说确定三个域的索引信息，再根据资源索引信息确定各个域的传输资源。
通过该方法a，可以通过码分方式区分两种干扰消除状态。干扰消除状态指示信息用于确定RIM-RS使用的序列。因为干扰消除状态不同时该比特的取值不同，使得网络设备发送代表干扰消除状态的RIM-RS所使用的序列并不相同。对于接收侧第二网络设备而言，也可以通过接收到的RIM-RS的序列不同，确定接收到的RIM-RS表示的干扰消除状态的含义，例如是否足够。
方法b、通过两个标识信息来区分不同的干扰消除状态。
两个标识信息包括第一标识信息和第二标识信息，第一标识信息对应第一序列索引信息，第二标识信息对应第二序列索引信息。第一序列索引信息和第二序列索引信息可以是 整个序列索引信息的两个不同范围。
两个标识信息也可以是通过高层节点或OAM来配置的。第一网络设备可以根据当前的干扰状态确定使用哪个标识信息来确定传输资源。其中，第一序列索引信息和第二序列索引信息分别对应不同的干扰消除状态。例如第一序列索引信息用于指示发送参考信号的网络设备认为干扰站使用的干扰消除足够。第二序列索引信息用于指示发送参考信号的网络设备认为干扰站使用的干扰消除不足够。
与上述方法2的两个情况类似，第一序列索引信息和第二序列索引信息可以均用于指示整个序列资源，或者，第一序列索引信息用于指示第一范围的序列资源，第二序列索引信息用于指示第二范围的序列资源。第一网络设备可以根据第一序列索引信息和第二序列索引信息直接确定两个序列资源，也可以根据第一序列索引信息和第三偏移量确定第一序列，根据第二序列索引信息和第四偏移量确定第二序列。该方法的具体实现可以参见上述方法2的两个情况的介绍，在此不再赘述。例如，参考信号的序列包括第一序列和第二序列，可能使用第一序列和第二序列中的一个或两个。网络设备根据第一序列索引信息，从候选序列中确定与第一序列索引信息对应的第一序列，根据第二序列索引信息，从候选序列中确定与第二序列索引信息对应的第二序列。也可以结合偏移量，网络设备根据第一序列索引信息与第三偏移量，从候选序列中确定与第一序列索引信息对应的第一序列，和/或，根据第二序列索引信息与第四偏移量，从候选序列中确定与第二序列索引信息对应的第二序列。
这样，第一标识信息只需要指示在第一范围的序列资源中的序列，而通常第一范围的序列资源小于整个序列资源的，因此相比第一标识信息需要指示在整个序列资源中的序列，所需要的比特数较少，可以节省信令开销。第二标识信息只需要指示在第二范围的序列资源中的序列，而通常第二范围的序列资源小于整个序列资源的，因此相比第二标识信息需要指示在整个序列资源中的序列，所需要的比特数较少，可以节省信令开销。
在一个可能的设计中，可以将第一种附加信息和第二种附加信息结合来进行指示。具体指示第一种附加信息的方法和指示第二种附加信息的方法细节可以参照上文的描述。
网络设备可以通过4个标识信息来区分不同的类型，包括不同的参考信号类型和不同的干扰消除状态。
例如，四个标识信息包括第一标识信息、第二标识信息、第三标识信息和第四标识信息。时域索引信息包括第一时域索引信息和第二时域索引信息。序列索引信息包括第一序列索引信息和第二序列索引信息。其中，第一标识信息对应第一时域索引信息和第一序列索引信息，第二标识信息对应第二时域索引信息和第一序列索引信息，第三标识信息对应第一时域索引信息和第二序列索引信息，第四标识信息对应第二时域索引信息和第二序列索引信息。
又例如，指示第二种附加信息的功能通常需要由被干扰站发出，也即由RS-1承载第二种附加信息，而RS-2不承载该信息。这种情况下，标识信息包括第三标识信息；序列索引信息包括第一序列索引信息和第二序列索引信息；其中，第一标识信息对应第一时域索引信息和第一序列索引信息，第二标识信息对应第二时域索引信息，第三标识信息对应第一时域索引信息和第二序列索引信息。
网络设备可以根据自身的干扰情况，确定需要在哪些时间单元上发送RIM-RS，具体可确定发送RS-1还是RS-2，以及确定发送RIM-RS的序列，具体可确定发送RS-E和RS-N。 RS-E表示干扰消除已足够，RS-N表示干扰消除不足够或不需要进一步提升干扰消除策略。
在第一种附加信息和第二种附加信息结合来进行指示的应用场景下，网络设备被配置的参数信息可以包括以下几种形式。
(1)网络设备被配置一个标识信息，确定RIM-RS的时域资源时还需要根据第一指定位置的参考信号区别信息的比特确定；确定RS-1和RS-2的码域资源时还需要根据第二指定位置的干扰消除状态指示信息的比特确定，或确定RS-1的码域资源时还需要根据第二指定位置的干扰消除状态指示信息的比特确定。
(2)网络设备被配置两个标识信息，分别对应RS-1和RS-2；确定RS-1和RS-2的码域资源时还需要根据第二指定位置的干扰消除状态指示信息的比特确定，或确定RS-1的码域资源时还需要根据第二指定位置的干扰消除状态指示信息的比特确定。
(3)网络设备被配置两个标识信息，分别对应RS-E和RS-N；确定RIM-RS的时域资源时还需要根据第一指定位置的参考信号区别信息的比特确定。其中，“RS-E”和“RS-N”可以在所有时间上生效，也可以仅在RS-1对应的时间上生效。
(4)网络设备被配置四个标识信息，分别对应RS-1E、RS-1N，RS-2E、RS-2N，分别对应“被干扰站+足够”、“被干扰站+不足够”、“干扰站+足够”、“干扰站+不足够”的情况。或者，配置/通知基站三个标识信息，分别对应RS-1E、RS-1N，RS-2，分别对应“被干扰站+足够”、“被干扰站+不足够”、“干扰站”(或“干扰站+足够”)的情况。
通过第一种附加信息，还可以通过RIM-RS的发送/接收过程中承载“区分干扰站或被干扰站”的信息，或者承载参考信号是RS-1或RS-2的信息。通过第二种附加信息，还可以通过RIM-RS的发送/接收过程中承载“当前干扰消除是否足够”的信息。第一附加信息和第二附加信息有助于实现更精确的基站间干扰协作。
基于上述方法实施例的同一构思，如图19所示，本申请实施例还提供一种通信装置1900，该通信装置1900用于执行上述方法实施例中第一网络设备或第二网络设备执行的操作。该通信装置1900包括处理单元1901和通信单元1902。
当执行上述方法实施例中第一网络设备执行的操作时：
处理单元1901，用于根据标识信息和参数信息，确定参考信号的传输资源；其中，所述传输资源包括所述参考信号的序列、频域资源和时域资源中的一个或多个，所述标识信息用于标识网络设备；所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源；
通信单元1902，用于在所述传输资源上发送所述参考信号。
可选的，处理单元1901用于：
从所述候选序列中确定与所述标识信息对应的所述参考信号的序列；
和/或，从所述候选频域资源中确定与所述标识信息对应的所述频域资源；
和/或，根据所述标识信息，确定所述时域资源。
可选的，所述时域资源包括一个或多个上下行切换周期；
所述参数信息还包括第一指示信息、第二指示信息或第三指示信息中的一项或多项；
所述第一指示信息用于指示：所述参考信号的重复发送次数；
所述第二指示信息用于指示：承载所述参考信号的符号在上下行切换周期中的位置；
所述第三指示信息用于指示：第一上下行切换周期和第二上下行切换周期中用于承载所述参考信号的上下行切换周期；其中，所述第一上下行切换周期和第二上下行切换周期 在时域上相邻，且所述第一上下行切换周期和所述第二上下行切换周期的样式不同。
可选的，处理单元1901用于：
确定所述标识信息对应的序列索引信息，从所述候选序列中确定与所述序列索引信息对应的所述参考信号的序列。
可选的，处理单元1901用于：
确定所述标识信息对应的频域索引信息，从所述候选频域资源中确定与所述频域索引信息对应的所述频域资源。
可选的，处理单元1901用于：
确定所述标识信息对应的时域索引信息；
确定周期指示信息指示的周期内与所述时域索引信息对应的所述时域资源，所述周期指示信息用于指示发送所述参考信号的周期。
可选的，处理单元1901用于：
根据所述标识信息、所述序列指示信息和所述频域指示信息，确定所述参考信号的周期；
确定所述标识信息对应的时域索引信息；
确定所述周期内与所述时域索引信息对应的所述时域资源。
可选的，所述时域索引信息中第一指定位置的比特由参考信号区别信息确定。
可选的，所述标识信息包括第一标识信息和第二标识信息；所述时域索引信息包括第一时域索引信息和第二时域索引信息；其中，所述第一标识信息对应所述第一时域索引信息，所述第二标识信息对应所述第二时域索引信息。
可选的，所述时域资源包括第一时域资源和第二时域资源；
处理单元1901用于：
根据所述第一时域索引信息确定所述周期内的第一时域资源，和/或，根据所述第二时域索引信息确定所述周期内的第二时域资源。
可选的，所述时域资源包括第一时域资源和第二时域资源；
处理单元1901用于：
根据所述第一时域索引信息与第一偏移量确定所述周期内的第一时域资源，和/或，根据所述第二时域索引信息与第二偏移量确定所述周期内的第二时域资源。
可选的，所述序列索引信息中第二指定位置的比特由干扰消除状态指示信息确定。
可选的，所述标识信息包括第一标识信息和第二标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，所述第一标识信息对应所述第一序列索引信息，所述第二标识信息对应所述第二序列索引信息。
可选的，所述标识信息包括第三标识信息和第四标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，
所述第一标识信息对应所述第一时域索引信息和所述第一序列索引信息；
所述第二标识信息对应所述第二时域索引信息和所述第一序列索引信息；
所述第三标识信息对应所述第一时域索引信息和所述第二序列索引信息；
所述第四标识信息对应所述第二时域索引信息和所述第二序列索引信息；
或者：
所述标识信息包括第三标识信息；所述序列索引信息包括第一序列索引信息和第二序 列索引信息；其中：
所述第一标识信息对应所述第一时域索引信息和所述第一序列索引信息；
所述第二标识信息对应所述第二时域索引信息；
所述第三标识信息对应所述第一时域索引信息和所述第二序列索引信息。
可选的，所述序列包括第一序列和第二序列；
处理单元1901用于：
根据所述第一序列索引信息，从所述候选序列中确定与所述第一序列索引信息对应的第一序列，和/或，根据所述第二序列索引信息，从所述候选序列中确定与所述第二序列索引信息对应的第二序列。
可选的，所述序列包括第一序列和第二序列；
处理单元1901用于：
根据所述第一序列索引信息与第三偏移量，从所述候选序列中确定与所述第一序列索引信息对应的第一序列，和/或，根据所述第二序列索引信息与第四偏移量，从所述候选序列中确定与所述第二序列索引信息对应的第二序列。
当执行上述方法实施例中第二网络设备执行的操作时：
处理单元1901用于根据参数信息确定接收资源，其中，所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源；
通信单元1902用于在所述接收资源上接收参考信号。
可选的，处理单元1901还用于：
确定所述参考信号的传输资源，所述传输资源包括所述参考信号对应的序列、频域资源和时域资源中的一个或多个；
根据所述参考信号的传输资源，确定所述参考信号的标识信息，所述标识信息用于标识发送所述参考信号的网络设备。
可选的，处理单元1901用于：
根据所述参考信号的序列，确定序列索引信息；根据所述参考信号的频域资源，确定频域索引信息；和/或，根据所述参考信号的时域资源，确定时域索引信息；
根据所述序列索引信息、所述频域索引信息和所述时域索引信息中的一项或多项，确定所述标识信息。
基于与上述方法实施例的同一构思，如图20所示，本申请实施例还提供了一种通信装置2000，该通信装置2000用于实现上述方法实施例中第一网络设备和/或第二网络设备执行的操作。
该通信装置2000包括：收发器2001、处理器2002、存储器2003。存储器2003为可选的。收发器2001用于与其它通信设备进行消息或信令的传输，例如，从源小区接收RRC消息。处理器2002与存储器2003耦合，用于调用存储器2003中的程序，当程序被执行时，使得处理器2002执行上述方法实施例中第一网络设备或第二网络设备执行的操作。存储器2003用于存储处理器2002执行的程序。图19中的功能模块处理单元1901可以通过处理器2002来实现，通信单元1902可以通过收发器2001来实现。
当执行第一网络设备的功能时，例如，处理器2002执行以下操作：根据标识信息和参数信息，确定参考信号的传输资源；其中，所述传输资源包括所述参考信号的序列、频 域资源和时域资源中的一个或多个，所述标识信息用于标识网络设备；所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源。
当执行第一网络设备的功能时，例如，处理器2002执行以下操作：根据参数信息确定接收资源，其中，所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源。
处理器2002还可以执行上述方法实施例中第一网络设备或第二网络设备执行的其它操作或功能，重复之处不再赘述。
处理器2002可以是中央处理器(central processing unit，CPU)，网络处理器(network processor，NP)或者CPU和NP的组合。
处理器2002还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit，ASIC)，可编程逻辑器件(programmable logic device，PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device，CPLD)，现场可编程逻辑门阵列(field-programmable gate array，FPGA)，通用阵列逻辑(generic array logic,GAL)或其任意组合。
存储器2003可以包括易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)；存储器2003也可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器2003还可以包括上述种类的存储器的组合。
在本申请上述方法实施例描述的第一网络设备所执行的操作和功能中的部分或全部，或第二网络设备所执行的操作和功能中的部分或全部，可以用芯片或集成电路来完成。
为了实现上述图19或图20所述的通信装置的功能，本申请实施例还提供一种芯片，包括处理器，用于支持该通信装置实现上述方法实施例中第一网络设备或第二网络设备所涉及的功能。在一种可能的设计中，该芯片与存储器连接或者该芯片包括存储器，该存储器用于保存该通信装置必要的程序指令和数据。
本申请实施例提供了一种计算机存储介质，存储有计算机程序，该计算机程序包括用于执行上述方法实施例的指令。
本申请实施例提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述方法实施例。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例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 (41)

  1. 一种通信方法，其特征在于，包括：
    根据标识信息和参数信息，确定参考信号的传输资源；其中，所述传输资源包括所述参考信号的序列、频域资源和时域资源中的一个或多个，所述标识信息用于标识网络设备；所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源；
    在所述传输资源上发送所述参考信号。
  2. 如权利要求1所述的方法，其特征在于，所述确定参考信号的传输资源，包括：
    从所述候选序列中确定与所述标识信息对应的所述参考信号的序列；和/或，
    从所述候选频域资源中确定与所述标识信息对应的所述频域资源；和/或，
    根据所述标识信息，确定所述时域资源。
  3. 如权利要求1或2所述的方法，其特征在于，所述时域资源包括一个或多个上下行切换周期；
    所述参数信息还包括第一指示信息、第二指示信息或第三指示信息中的一项或多项；
    所述第一指示信息用于指示：所述参考信号的重复发送次数；
    所述第二指示信息用于指示：承载所述参考信号的符号在上下行切换周期中的位置；
    所述第三指示信息用于指示：第一上下行切换周期和第二上下行切换周期中用于承载所述参考信号的上下行切换周期；其中，所述第一上下行切换周期和第二上下行切换周期在时域上相邻，且所述第一上下行切换周期和所述第二上下行切换周期的样式不同。
  4. 如权利要求1～3任一项所述的方法，其特征在于，从所述候选序列中确定与所述标识信息对应的所述参考信号的序列，包括：
    确定所述标识信息对应的序列索引信息，从所述候选序列中确定与所述序列索引信息对应的所述参考信号的序列。
  5. 如权利要求1～3任一项所述的方法，其特征在于，从所述候选频域资源中确定与所述标识信息对应的所述频域资源，包括：
    确定所述标识信息对应的频域索引信息，从所述候选频域资源中确定与所述频域索引信息对应的所述频域资源。
  6. 如权利要求1～3任一项所述的方法，其特征在于，根据标识信息，确定所述时域资源，包括：
    确定所述标识信息对应的时域索引信息；
    确定周期指示信息指示的周期内与所述时域索引信息对应的所述时域资源，所述周期指示信息用于指示发送所述参考信号的周期。
  7. 如权利要求1～3任一项所述的方法，其特征在于，根据标识信息，确定所述时域资源，包括：
    根据所述标识信息、所述序列指示信息和所述频域指示信息，确定所述参考信号的周期；
    确定所述标识信息对应的时域索引信息；
    确定所述周期内与所述时域索引信息对应的所述时域资源。
  8. 如权利要求6或7所述的方法，其特征在于，所述时域索引信息中第一指定位置 的比特由参考信号区别信息确定。
  9. 如权利要求6或7所述的方法，其特征在于，所述标识信息包括第一标识信息和第二标识信息；所述时域索引信息包括第一时域索引信息和第二时域索引信息；其中，所述第一标识信息对应所述第一时域索引信息，所述第二标识信息对应所述第二时域索引信息。
  10. 如权利要求9所述的方法，其特征在于，所述时域资源包括第一时域资源和第二时域资源；
    所述确定所述时域资源，包括：
    根据所述第一时域索引信息确定所述周期内的第一时域资源，和/或，根据所述第二时域索引信息确定所述周期内的第二时域资源。
  11. 如权利要求9所述的方法，其特征在于，所述时域资源包括第一时域资源和第二时域资源；
    所述确定所述时域资源，包括：
    根据所述第一时域索引信息与第一偏移量确定所述周期内的第一时域资源，和/或，根据所述第二时域索引信息与第二偏移量确定所述周期内的第二时域资源。
  12. 如权利要求4～11任一项所述的方法，其特征在于，所述序列索引信息中第二指定位置的比特由干扰消除状态指示信息确定。
  13. 如权利要求4～8任一项所述的方法，其特征在于，所述标识信息包括第一标识信息和第二标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，所述第一标识信息对应所述第一序列索引信息，所述第二标识信息对应所述第二序列索引信息。
  14. 如权利要求9～11任一项所述的方法，其特征在于，所述标识信息包括第三标识信息和第四标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，
    所述第一标识信息对应所述第一时域索引信息和所述第一序列索引信息，
    所述第二标识信息对应所述第二时域索引信息和所述第一序列索引信息，
    所述第三标识信息对应所述第一时域索引信息和所述第二序列索引信息，
    所述第四标识信息对应所述第二时域索引信息和所述第二序列索引信息；
    或者，
    所述标识信息包括第三标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，
    所述第一标识信息对应所述第一时域索引信息和所述第一序列索引信息，
    所述第二标识信息对应所述第二时域索引信息，
    所述第三标识信息对应所述第一时域索引信息和所述第二序列索引信息。
  15. 如权利要求14所述的方法，其特征在于，所述序列包括第一序列和第二序列；
    所述确定所述参考信号的序列，包括：
    根据所述第一序列索引信息，从所述候选序列中确定与所述第一序列索引信息对应的第一序列，和/或，根据所述第二序列索引信息，从所述候选序列中确定与所述第二序列索引信息对应的第二序列。
  16. 如权利要求14所述的方法，其特征在于，所述序列包括第一序列和第二序列；
    所述确定所述参考信号的序列，包括：
    根据所述第一序列索引信息与第三偏移量，从所述候选序列中确定与所述第一序列索引信息对应的第一序列，和/或，根据所述第二序列索引信息与第四偏移量，从所述候选序列中确定与所述第二序列索引信息对应的第二序列。
  17. 一种通信方法，其特征在于，包括：
    根据参数信息确定接收资源，其中，所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源；
    在所述接收资源上接收参考信号。
  18. 如权利要求17所述的方法，其特征在于，所述方法还包括：
    确定所述参考信号的传输资源，所述传输资源包括所述参考信号对应的序列、频域资源和时域资源中的一个或多个；
    根据所述参考信号的传输资源，确定所述参考信号的标识信息，所述标识信息用于标识发送所述参考信号的网络设备。
  19. 如权利要求18所述的方法，其特征在于，根据所述参考信号的传输资源确定标识信息，包括：
    根据所述参考信号的序列，确定序列索引信息；根据所述参考信号的频域资源，确定频域索引信息；和/或，根据所述参考信号的时域资源，确定时域索引信息；
    根据所述序列索引信息、所述频域索引信息和所述时域索引信息中的一项或多项，确定所述标识信息。
  20. 一种通信装置，其特征在于，包括收发器和处理器，其中，
    所述处理器用于与存储器耦合，调用所述存储器中的程序，执行以下操作：根据标识信息和参数信息，确定参考信号的传输资源；其中，所述传输资源包括所述参考信号的序列、频域资源和时域资源中的一个或多个，所述标识信息用于标识网络设备；所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源；
    所述收发器用于在所述传输资源上发送所述参考信号。
  21. 如权利要求20所述的装置，其特征在于，所述处理器用于：
    从所述候选序列中确定与所述标识信息对应的所述参考信号的序列；和/或，
    从所述候选频域资源中确定与所述标识信息对应的所述频域资源；和/或，
    根据所述标识信息，确定所述时域资源。
  22. 如权利要求20或21所述的装置，其特征在于，所述时域资源包括一个或多个上下行切换周期；
    所述参数信息还包括第一指示信息、第二指示信息或第三指示信息中的一项或多项；
    所述第一指示信息用于指示：所述参考信号的重复发送次数；
    所述第二指示信息用于指示：承载所述参考信号的符号在上下行切换周期中的位置；
    所述第三指示信息用于指示：第一上下行切换周期和第二上下行切换周期中用于承载所述参考信号的上下行切换周期；其中，所述第一上下行切换周期和第二上下行切换周期在时域上相邻，且所述第一上下行切换周期和所述第二上下行切换周期的样式不同。
  23. 如权利要求20～22任一项所述的装置，其特征在于，所述处理器用于：
    确定所述标识信息对应的序列索引信息，从所述候选序列中确定与所述序列索引信息对应的所述参考信号的序列。
  24. 如权利要求20～22任一项所述的装置，其特征在于，所述处理器用于：
    确定所述标识信息对应的频域索引信息，从所述候选频域资源中确定与所述频域索引信息对应的所述频域资源。
  25. 如权利要求20～22任一项所述的装置，其特征在于，所述处理器用于：
    确定所述标识信息对应的时域索引信息；
    确定周期指示信息指示的周期内与所述时域索引信息对应的所述时域资源，所述周期指示信息用于指示发送所述参考信号的周期。
  26. 如权利要求20～22任一项所述的装置，其特征在于，所述处理器用于：
    根据所述标识信息、所述序列指示信息和所述频域指示信息，确定所述参考信号的周期；
    确定所述标识信息对应的时域索引信息；
    确定所述周期内与所述时域索引信息对应的所述时域资源。
  27. 如权利要求25或26所述的装置，其特征在于，所述时域索引信息中第一指定位置的比特由参考信号区别信息确定。
  28. 如权利要求25或26所述的装置，其特征在于，所述标识信息包括第一标识信息和第二标识信息；所述时域索引信息包括第一时域索引信息和第二时域索引信息；其中，所述第一标识信息对应所述第一时域索引信息，所述第二标识信息对应所述第二时域索引信息。
  29. 如权利要求28所述的装置，其特征在于，所述时域资源包括第一时域资源和第二时域资源；
    所述处理器用于：
    根据所述第一时域索引信息确定所述周期内的第一时域资源，和/或，根据所述第二时域索引信息确定所述周期内的第二时域资源。
  30. 如权利要求28所述的装置，其特征在于，所述时域资源包括第一时域资源和第二时域资源；
    所述处理器用于：
    根据所述第一时域索引信息与第一偏移量确定所述周期内的第一时域资源，和/或，根据所述第二时域索引信息与第二偏移量确定所述周期内的第二时域资源。
  31. 如权利要求23～30任一项所述的装置，其特征在于，所述序列索引信息中第二指定位置的比特由干扰消除状态指示信息确定。
  32. 如权利要求23～27任一项所述的装置，其特征在于，所述标识信息包括第一标识信息和第二标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，所述第一标识信息对应所述第一序列索引信息，所述第二标识信息对应所述第二序列索引信息。
  33. 如权利要求28～30任一项所述的装置，其特征在于，所述标识信息包括第三标识信息和第四标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，
    所述第一标识信息对应所述第一时域索引信息和所述第一序列索引信息，
    所述第二标识信息对应所述第二时域索引信息和所述第一序列索引信息，
    所述第三标识信息对应所述第一时域索引信息和所述第二序列索引信息，
    所述第四标识信息对应所述第二时域索引信息和所述第二序列索引信息；
    或者，
    所述标识信息包括第三标识信息；所述序列索引信息包括第一序列索引信息和第二序列索引信息；其中，
    所述第一标识信息对应所述第一时域索引信息和所述第一序列索引信息，
    所述第二标识信息对应所述第二时域索引信息，
    所述第三标识信息对应所述第一时域索引信息和所述第二序列索引信息。
  34. 如权利要求33所述的装置，其特征在于，所述序列包括第一序列和第二序列；
    所述处理器用于：
    根据所述第一序列索引信息，从所述候选序列中确定与所述第一序列索引信息对应的第一序列，和/或，根据所述第二序列索引信息，从所述候选序列中确定与所述第二序列索引信息对应的第二序列。
  35. 如权利要求33所述的装置，其特征在于，所述序列包括第一序列和第二序列；
    所述处理器用于：
    根据所述第一序列索引信息与第三偏移量，从所述候选序列中确定与所述第一序列索引信息对应的第一序列，和/或，根据所述第二序列索引信息与第四偏移量，从所述候选序列中确定与所述第二序列索引信息对应的第二序列。
  36. 一种通信装置，其特征在于，包括收发器和处理器，其中，
    所述处理器用于与存储器耦合，调用所述存储器中的程序，执行以下操作：根据参数信息确定接收资源，其中，所述参数信息包括序列指示信息和频域指示信息，所述序列指示信息用于指示一个或多个候选序列，所述频域指示信息用于指示一个或多个候选频域资源；
    所述收发器用于在所述接收资源上接收参考信号。
  37. 如权利要求36所述的装置，其特征在于，所述处理器还用于：
    确定所述参考信号的传输资源，所述传输资源包括所述参考信号对应的序列、频域资源和时域资源中的一个或多个；
    根据所述参考信号的传输资源，确定所述参考信号的标识信息，所述标识信息用于标识发送所述参考信号的网络设备。
  38. 如权利要求37所述的装置，其特征在于，所述处理器用于：
    根据所述参考信号的序列，确定序列索引信息；根据所述参考信号的频域资源，确定频域索引信息；和/或，根据所述参考信号的时域资源，确定时域索引信息；
    根据所述序列索引信息、所述频域索引信息和所述时域索引信息中的一项或多项，确定所述标识信息。
  39. 一种计算机可读存储介质，其特征在于，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行如权利要求1-19任意一项所述的方法。
  40. 一种计算机程序产品，其特征在于，当计算机读取并执行所述计算机程序产品时，使得计算机执行如权利要求1-19任意一项所述的方法。
  41. 一种芯片，其特征在于，所述芯片与存储器相连或者所述芯片包括所述存储器，用于读取并执行所述存储器中存储的软件程序，以实现如权利要求1-19任意一项所述的方法。
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