RU2801592C2 - Communication device and communication method - Google Patents

Abstract

FIELD: communications,

SUBSTANCE: reference signal transmission resource is determined based on the identification information and parameter information, wherein the transmission resource includes one or more of a sequence, a frequency domain resource, and a time domain resource of the reference signal, the identification information is used to identify a network device, the parameter information includes indication information sequences and frequency domain indication information, the sequence indication information is used to indicate one or more potentially suitable sequences, and the frequency domain indication information is used to indicate one or more potentially suitable frequency domain resources. The reference signal is sent on the transmission resource.

EFFECT: increase in the efficiency of coordination of mutual interference between network devices.

26 cl, 4 tbl, 20 dwg

Description

Cross-reference to related applications

[0001] The present application claims priority based on Chinese Patent Application No. 201910118041.3, filed with the China Patent Office on February 15, 2019, entitled "COMMUNICATION METHOD AND COMMUNICATIONS APPARATUS", which is hereby incorporated by reference in its entirety.

The field of technology to which the invention belongs

[0002] Embodiments of the present application relate to the field of communication technologies and, in particular, to a communication method and a communication device.

State of the art

[0003] In a wireless communication system using time division duplex (TDD), such as a new radio (NR) system, cross-link interference may occur. , CLI) between two network devices operating on the same frequency. Link crosstalk refers to interference caused by a downlink (DL) signal sent by one network device and an uplink (UL) signal received by another network device. The atmospheric channel effect allows the DL signal sent by the network device to be transmitted over long distances, and this is one of the reasons for the emergence of CLI. As shown in Fig. 1, for example, the network device is a base station, and two network devices are represented by base station 1 and base station 2. Base station 1 and base station 2 are geographically separated from each other. Even though the two base stations have the same transmission direction (namely, they simultaneously receive uplink signals/send downlink signals simultaneously), there is an obvious delay when the downlink signal sent by base station 1 reaches the base station. station 2. The delay is greater than the downlink to uplink switch guard period (GP) of the base station 2, and the base station 2 has already switched from the downlink sending direction to the uplink receiving direction. Therefore, the downlink signal sent by the remote base station 1 interferes with the uplink signal received by the local base station 2, that is, remote interference (RI) is generated.

[0004] For interference caused by the atmospheric channel, the distance of mutual interference and the delay depend on the geographic location and weather. Therefore, the interference distance and delay contain large uncertainties. To counteract remote interference, techniques such as reducing the transmission power used by the interfering base station and reducing the number of transmitted downlink symbols by the interfering base station are used. However, before implementing the interference mitigation solution, it is necessary to perform a measurement between the base stations in order to identify the presence of distant interference or to identify the interfering base station. Currently, crosstalk in communication lines is usually detected by receiving and sending a reference signal (reference signal, RS). The reference signal used to measure remote interference may be referred to as a remote interference management reference signal (RIM-RS). In this process, if the interfering base station sends the RIM-RS, then the interfering base station can identify, by receiving or detecting the RIM-RS, the base station that sends the RIM-RS, or if the interfering base station sends the RIM-RS. The RS interfering base station can identify, by receiving or discovering the RIM-RS, the base station that sends the RIM-RS.

[0005] However, it is necessary to decide how to send and receive RIM-RS.

The essence of the invention

[0006] Embodiments of the present application provide a communication method and a communication apparatus for solving the problem of how to send and receive RIM-RS during a remote interference measurement.

[0007] The specific technical solutions presented in the embodiments of the present application are as follows.

[0008] According to a first aspect, a communication method is provided. The method may be performed by the first network device. The method is implemented by performing the following steps: determining a reference signal transmission resource based on identification information and parameter information, wherein the transmission resource includes one or more of a sequence, a frequency domain resource, and a time domain resource of the reference signal, 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 is used to indicate one or more potentially suitable sequences, and the frequency domain indication information is used to indicate one or more potentially suitable frequency domain resources; and sending the reference signal on the transmission resource. According to the method, the first network device can determine, based on the identification information and the parameter information, the sequence and time-frequency resource for sending the reference signal to send the reference signal, thereby improving the efficiency of performing interference coordination between the network devices.

[0009] In an exemplary embodiment, the identification information and the parameter information are information configured by a higher level node or an operation, administration, and maintenance (OAM) node.

[0010] In an exemplary embodiment, the reference signal sequence corresponding to the identification information is determined from potentially suitable sequences; and/or a frequency domain resource corresponding to the identification information is determined from potentially eligible frequency domain resources; and/or the time domain resource is determined based on the identification information. According to the implementation of the reference signal in the present application, under different network configurations and detection requirements, the reference signal can be flexibly sent and received when remote interference measurement between network devices is performed. For example, the requirement for the number of RIM-RS sequences in an NR may vary depending on the number of gNBs deployed by the operator. For example, when the number of gNBs is relatively small, the number of RIM-RS sequences can be reduced, thereby reducing the detection difficulty and increasing the detection probability. In NR below 6 GHz, NR can support a maximum bandwidth of 100 MHz. In the passband of the NR system, a plurality of RIM-RSs may be transmitted at different positions in the frequency domain, in other words, frequency division transmission is performed. The above method can support frequency division transmission.

[0011] In an exemplary implementation, the time domain resource may be a time block (unit of time). The time domain resource or time block includes one or more downlink to uplink switch 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 retransmissions of the reference signal. The second indication information is used to indicate the position of a symbol that carries the reference signal in the downlink to uplink switching period. The third indication information is used to indicate the downlink-to-uplink handoff period which is used to carry the reference signal and which is in the first downlink-to-uplink handoff period and the second downlink-to-uplink handoff period. . The first downlink to uplink switching period and the second downlink to uplink switching period are contiguous in the time domain, and the first downlink to uplink switching period and the second downlink to uplink switching period uplink have different patterns. Because the reference signal is flexibly configured, the requirements for different numbers of reference signal sequences and different network bandwidth can be met. In addition, the reference signal can be configured according to different repetition increase requirements and detection distance requirements, so that network devices in networks with different deployment characteristics can perform remote interference measurements. For example, the reference signal configuration can be applied to a scenario where the number of gNBs deployed by different operators in an NR can range from tens of thousands to millions.

[0012] In an exemplary embodiment, that the reference signal sequence corresponding to the identification information is determined from potentially suitable sequences is implemented as follows: sequence index information corresponding to the identification information is determined; and the reference signal sequence corresponding to the sequence index information is determined from the potentially suitable sequences.

[0013] In an exemplary embodiment, that a frequency domain resource corresponding to the identification information is determined from potentially suitable frequency domain resources is implemented as follows: frequency domain index information corresponding to the identification information is determined; and, from the potentially eligible frequency domain resources, the frequency domain resource corresponding to the frequency domain index information is determined.

[0014] In an exemplary embodiment, that the time domain resource is determined based on the identification information is implemented as follows: the time domain index information corresponding to the identification information is determined; and a time domain resource that corresponds to the time domain index information is determined in the period indicated by the period indication information, the period indication information being used to indicate the sending period of the reference signal.

[0015] In an exemplary embodiment, that the time domain resource is determined based on the identification information is implemented as follows: the period of the reference signal is determined based on the identification information, the sequence indication information, and the frequency domain indication information; time domain index information corresponding to the identification information is determined; and a time domain resource that corresponds to the time domain index information in said period is determined.

[0016] In an exemplary embodiment, the bit at the first predetermined position in the time domain index information is determined by the reference signal discrimination information. Thus, with time division, two types of reference signals can be distinguished.

[0017] In an exemplary embodiment, the identification information includes a first identification information and a second identification information. The time domain index information includes first time domain index information and second time domain index 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. This helps to realize more accurate interference coordination between base stations.

[0018] In an exemplary embodiment, the time domain resource includes a first time domain resource and a second time domain resource. The time domain resource may be determined as follows: a first time domain resource in said period is determined based on the first time domain index information and/or a second time domain resource in said period is determined based on the second time domain index information. This helps to realize more accurate interference coordination between base stations.

[0019] In an exemplary embodiment, the time domain resource includes a first time domain resource and a second time domain resource. The time domain resource can be determined as follows: the first time domain resource in said period is determined based on the information of the first time domain index and the first offset, and/or the second time domain resource in the period is determined based on the information of the second time domain index and the second offset. Thus, the first identification information need only indicate the position in the time domain in the first sub-period, and the first sub-period is usually less than the entire transmission period. Therefore, compared with the case in which the first identification information needs to indicate positions in the time domain during the entire transmission period, a relatively small number of bits are required, and the signaling overhead can be reduced. The second identification information need only indicate the position in the time domain in the second sub-period, and the second sub-period is usually less than the entire transmission period. Therefore, compared with the case in which the second identification information needs to indicate positions in the time domain in the entire transmission period, a relatively small number of bits is required, and the signaling overhead can be reduced.

[0020] In an exemplary embodiment, the first offset is determined by the second sub-period and/or the second offset is determined by the first sub-period.

[0021] In an exemplary embodiment, the bit at the second predetermined position in the sequence index information is determined by the interference cancellation state indication information. Thus, the two states of interference cancellation can be distinguished by the code separation method.

[0022] In an exemplary embodiment, the identification information includes a first identification information and a second identification information. The sequence index information includes first sequence index information and second sequence index information. The first identification information corresponds to the index information of the first sequence, and the second identification information corresponds to the index information of the second sequence. This helps to realize more accurate interference coordination between base stations.

[0023] In an exemplary implementation, the first index information is used to indicate that the interference cancellation used by the interfering base station is sufficient; and the second index information is used to indicate that the interference suppression used by the interfering station is insufficient. This helps to realize more accurate interference coordination between base stations.

[0024] In an exemplary embodiment, the identification information includes third identification information and fourth identification information, and 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 and the second sequence index information, and the fourth identification information corresponds to second time domain index information; and second sequence index information. This helps to realize more accurate interference coordination between base stations.

[0025] In an exemplary embodiment, the identification information includes third identification information, and 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 third identification information corresponds to the first time domain index information and the second sequence index information. This helps to realize more accurate interference coordination between base stations.

[0026] In an exemplary embodiment, the sequence includes a first sequence and a second sequence. The reference signal sequence is determined as follows: the first sequence corresponding to the first sequence index information is determined from the potentially suitable sequences based on the first sequence index information, and/or the second sequence corresponding to the second sequence index information is determined from the potentially suitable sequences based on the second sequence index information. This helps to realize more accurate interference coordination between base stations.

[0027] In an exemplary embodiment, the sequence includes a first sequence and a second sequence. The reference signal sequence is determined as follows: the first sequence corresponding to the first sequence index information is determined from the potentially suitable sequences based on the first sequence index information and the third offset, and/or the second sequence is determined from the potentially suitable sequences based on the second sequence index information and the fourth offset, corresponding second sequence index information. Thus, the first identification information need only indicate the sequence in the sequence resource in the first range, and the sequence resource in the first range is usually less than the entire sequence resource. Therefore, compared with the case where the first identification information needs to indicate a sequence in the entire sequence resource, a relatively small number of bits is required, and the signaling overhead can be reduced. The second identification information need only indicate the sequence in the sequence resource in the second range, and the sequence resource in the second range is usually less than the entire resource of sequences. Therefore, compared with the case in which the second identification information needs to indicate a sequence in the entire sequence resource, a relatively small number of bits is required, and the signaling overhead can be reduced.

[0028] According to a second aspect, a communication method is provided. The method may be performed by a receiving party, such as a second network device. The method is implemented by performing the following steps: determining a reception resource based on the 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 potentially suitable sequences, and the frequency domain indication information is used to indicating one or more potentially suitable frequency domain resources; and receiving the reference signal at the receive resource. The parameter information is applicable to both the first network device and the second network device. The second network device may perform reception or discovery in the potentially suitable time-frequency resources and sequence set based on the parameter information, and determine, based on the detected sequence and time-frequency resources of the reference signal, the identification information of the first network device that sends the reference signal to receive the reference signal. . This helps to improve the performance of interference coordination between network devices.

[0029] In an exemplary embodiment, the method further includes: determining a transmission resource of the reference signal, the transmission resource including one or more of a sequence, a frequency domain resource, and a time domain resource that correspond to the reference signal; and determining identification information of the reference signal based on the transmission resource of the reference signal, wherein the identification information is used to identify a network device that sends the reference signal. According to the embodiment of the reference signal in the present application, under various configurations of different networks and detection requirements, the reference signal can be flexibly sent and received when remote interference measurement between network devices is performed. For example, the requirement for the number of RIM-RS sequences in an NR may vary depending on the number of gNBs deployed by the operator. For example, when the number of gNBs is relatively small, the number of RIM-RS sequences can be reduced, thereby reducing the detection difficulty and increasing the detection probability. In NR below 6 GHz, NR can support a maximum bandwidth of 100 MHz. In the passband of the NR system, a plurality of RIM-RSs may be transmitted at different positions in the frequency domain, in other words, frequency division transmission is performed. The above method can support frequency division transmission.

[0030] In an exemplary embodiment, determining the identification information based on the reference signal transmission resource is implemented as follows: determining the sequence index information based on the reference signal sequence, determining the frequency domain index information based on the frequency domain resource of the reference signal, and/or determining the time index information areas based on the time domain resource of the reference signal; and the identification information is determined based on one or more of the sequence index information, the frequency domain index information, and the time domain index information. Since the reference signal is flexibly configured, requirements for different numbers of reference signal sequences and different network bandwidth can be met. In addition, the reference signal can be configured according to different repetition requirements and detection distance requirements, so that network devices in networks with different deployment characteristics can perform remote interference measurements. For example, a reference signal configuration can be applied to a scenario where the number of gNBs deployed by different operators in an NR can range from tens of thousands to millions.

[0031] According to a third aspect, a communication device is provided. The device has the function of implementing the first aspect, the second aspect, any possible implementation of the first aspect, or any possible implementation of the second aspect. The function may be implemented in hardware, or may be implemented in hardware running corresponding software. The hardware or software includes one or more modules corresponding to the above function.

[0032] In an exemplary embodiment, the device may be a microchip or an integrated circuit.

[0033] In an exemplary embodiment, the device includes a transceiver and a processor. The transceiver is configured to communicate with another communication device. The processor is configured to communicate with the memory and execute a program stored in the memory. When the program is executed, the device may perform a method according to any of the first aspect, the second aspect, the first aspect embodiments, or the second aspect embodiments.

[0034] In an exemplary embodiment, the device further includes a memory, and the memory stores a program executable by the processor.

[0035] In a possible implementation, the device is a terminal.

[0036] According to a fourth aspect, a chip is provided. The chip is coupled to the memory, or the chip includes the memory, and is configured to read and execute a program stored in the memory to implement the method in any of the first aspect, the second aspect, the first aspect embodiments, or the second aspect embodiments.

[0037] According to a fifth aspect, a communication system is provided. The communication system includes a first network device and a second network device. The first network device is configured to perform the method in any of the first aspect and possible implementations, and/or the second network device is configured to perform the method in any of the second aspect and possible implementations.

[0038] According to a sixth aspect, a computer storage medium is provided. The computer storage medium stores a computer program, and the computer program includes instructions used to perform a method in any of the above aspects and possible implementations of the above aspects.

[0039] According to a seventh aspect, a computer program product including instructions is provided. When a computer program product is executed on a computer, the computer can perform a method in any of the above aspects and possible implementations of the above aspects.

BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG. 1 is a schematic diagram of prior art remote interference;

[0041] Figure 2 is a schematic diagram of a communication system architecture according to one embodiment of the present application;

[0042] FIG. 3 is a schematic flowchart of a communication method according to one embodiment of the present application;

[0043] FIGS. 4(a) and 4(b) show a schematic diagram of a reference signal resend according to one embodiment of the present application;

[0044] Figure 5 is a schematic diagram 1 showing a character position according to one embodiment of the present application;

[0045] Figure 6 is a schematic diagram 2 showing a character position according to one embodiment of the present application;

[0046] FIG. 7 is a schematic diagram of resending a reference signal at various positions according to one embodiment of the present application;

[0047] FIG. 8 is a schematic diagram of downlink to uplink handoff period patterns according to one embodiment of the present application;

[0048] FIG. 9 is a schematic diagram 1 of options for specifying a reference signal when patterns differ, according to one embodiment of the present application;

[0049] FIG. 10 is a schematic diagram of 2 options for specifying a reference signal when patterns differ, according to one embodiment of the present application;

[0050] FIG. 11 is a schematic diagram of 3 options for specifying a reference signal when patterns differ, according to one embodiment of the present application;

[0051] FIG. 12 is a schematic diagram of resource index information according to one embodiment of the present application;

[0052] FIG. 13 is a schematic diagram of a binding relationship between resource index information and resources in various areas according to one embodiment of the present application;

[0053] FIG. 14 is a schematic diagram 2 of a linking relationship between resource index information and resources in various areas according to one embodiment of the present application;

[0054] FIG. 15 is a schematic diagram 1 of a method for specifying additional information of the first type according to one embodiment of the present application;

[0055] FIG. 16 is a schematic diagram 2 of a method for specifying additional information of the first type according to one embodiment of the present application;

[0056] FIG. 17 is a schematic diagram 3 of a method for specifying additional information of the first type according to one embodiment of the present application;

[0057] FIG. 18 is a schematic diagram 1 of a method for specifying additional information of the second type according to one embodiment of the present application;

[0058] FIG. 19 is a schematic diagram 1 of the structure of a communication device according to one embodiment of the present application; And

[0059] FIG. 20 is a schematic diagram 2 of the structure of a communication device according to one embodiment of the present application.

Description of Embodiments

[0060] Embodiments of the present application provide a communication method and communication device to help network devices send and receive reference signals flexibly during remote interference measurement between network devices. The method and apparatus are based on the same concept. Since the principles for solving a problem using a method and a device are similar, mutual reference can be made between implementations of the device and the method, and repetitive descriptions are omitted. In the descriptions of embodiments of the present application, the term "and/or" describes an association relationship between associated objects and represents that three relationships can exist. For example, A and/or B can represent the following three cases: Only A exists, both A and B exist, and only B exists. The "/" character usually indicates an "or" relationship between associated objects. In the present application, "at least one" means one or more, and "many" means two or more. In addition, it should be understood that in the description of the present application, terms such as "first" and "second" are used merely to distinguish and describe, but should not be understood as indicating or implying relative importance, or should not be understood. as indicating or implying sequence.

[0061] The communication method in the embodiments of the present application can be applied to various communication systems, for example, a long term evolution (LTE) system, a worldwide interoperability for microwave access (WiMAX) communication system, a ^5th Generation (5G) such as new radio access technology (NR) and future communication system such as 6G system. The two network devices referred to as remote interference in this application may belong to the same communication system or may belong to different communication systems.

[0062] Figure 2 shows the architecture of an exemplary communication system to which the communication method provided in the embodiments of the present application is applicable. 2, communication system 200 includes a plurality of network devices. That two network devices are included is used as an example, and the two network devices are represented by the network device 201 and the network device 202. The communication system 200 may further include a plurality of terminals. The network device 201 and the network device 202 serve different terminals separately. There is interference between the network device 201 and the network device 202, and the network device 201 and the network device 202 can measure and coordinate the interference by sending and receiving a reference signal. In the present application, the communication system may include a plurality of network devices. For ease of description, a network device that is interfered with by another network device may be referred to as an interfering base station, and a network device that interferes with another network device may be referred to as an interfering base station. It can be understood that a network device can only interfere with another network device, in which case it is an interfering base station, or it can only interfere with another network device, in which case it is an interfering base station. It is also possible that a network device interferes with another network device and is interfered with by another network device. In this case, the network device may determine, according to some determination rules, that the network device is an interfering base station and/or an interfering base station.

[0063] The communication method presented in the embodiments of the present application can be applied to a remote interference scenario. A specific remote interference scenario is described in FIG. 1, and details are not described here again. When the method in the present application is applied to a remote interference scenario, a reference signal sent or received between network devices can be used to measure the remote interference. The reference signal may be referred to as RIM-RS or, of course, may be referred to as another name. RIM-RS can be used as an example to describe the reference signal in this application. In this embodiment of the present application, the reference signal may further carry other information for coordinating interference between the interfering base station and the interfering base station. In a remote interference application scenario, network device 201 and network device 202 may be geographically separated from each other. Therefore, the network device 201 and the network device 202 need to perform measurement, and they can perform interference measurement or coordination by sending and receiving RIM-RS.

[0064] In the communication system 200, each of the network device 201 and the network device 202 is a device with a wireless transceiver function, or each may be a chip that can be housed in the device. The device includes, but is not limited to, an advanced NodeB (evolved Node B, eNB), a radio network controller (RNC), a NodeB (Node B, NB), a base station controller (BSC), a base transceiver station (base transceiver station, BTS), home base station (for example, home enhanced node B or home node B, HNB), baseband unit (BBU), access point (AP) in a wireless communication system (wireless fidelity, Wi-Fi), wireless relay node, wireless transit node, transmission and reception point (TRP) or transmission point (TP) or the like, may be a gNB or transmission point (TRP or TP) in 5G system (e.g., NR), or one or one group of antenna panels (including a plurality of antenna panels) of a base station in a 5G system, or may be a network node constituting a gNB or transmission point, such as a baseband unit (BBU) or a distributed unit (DU).

[0065] In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may further include a radio unit (RU). The CU implements part of the gNB functionality and the DU implements part of the gNB functionality. For example, the CU implements the functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer, and the DU implements the radio link control (RLC) functions, the media access control layer ( media access control, MAC) and physical (physical, PHY) layer. The information in the RRC layer eventually becomes the information in the PHY layer (in other words, the information sent through the PHY layer), or is converted from the information in the PHY layer. Therefore, in this architecture, higher layer signaling, such as RRC layer signaling or PDCP layer signaling, can also be considered as sent by DU or sent by DU and RU. It is understood that the network device may be a CU node, a DU node, or a device including a CU node and a DU node. In addition, the CU may be classified as a network device in the access network RAN, or the CU may be classified as a network device in the core network CN. It's not limited here.

[0066] A terminal served by a network device may also be referred to as user equipment (user equipment, UE), access terminal, user equipment, subscriber station, mobile station, mobile console, remote station, remote terminal, mobile device, user terminal, terminal device , wireless communication device, user agent, or user device. The terminal in this embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, wireless terminal in industrial control, wireless terminal in self driving, wireless terminal in telemedicine (remote medicine), wireless terminal in smart grid, wireless terminal in transportation safety, wireless a terminal in a smart city, a wireless terminal in a smart home, and the like.

[0067] It can be understood that the method in the embodiments of the present application can also be applied to another application scenario of interference measurement or interference coordination. The network architecture and service scenario described in the embodiments of the present application are intended to more clearly describe the technical solutions in the embodiments of the present application and do not represent limitations of the technical solutions presented in the embodiments of the present application. One skilled in the art may be aware that: With the development of network architecture and the advent of new service scenarios, the technical solutions presented in the embodiments of the present application are also applicable to similar technical problems.

[0068] Embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0069] The communication method provided in the embodiments of the present application relates to sending and receiving a reference signal between two network devices, and may be performed by the transmitting side and the receiving side, or the first network device and the second network device. For example, the first network device is the transmitting side and the second network device is the receiving side.

[0070] As shown in Fig. 3, the specific procedure of the communication method presented in the present application is described as follows.

[0071] Step S301: The first network device determines the transmission resource of the reference signal based on the identification information and parameter information.

[0072] Here, the reference signal transmission resource may include one or more of a sequence, a frequency domain resource, and a time domain resource of the reference signal.

[0073] Step S302: The first network device sends a reference signal on the determined transmission resource.

[0074] Step S303: The second network device determines a reception resource based on the parameter information.

[0075] Step S304: The second network device receives the reference signal on the determined reception resource.

[0076] There is no strict execution sequence between S303 and S301/S302. For example, S303 may be executed in synchronism with S301 before S302.

[0077] Optionally, link crosstalk exists between the first network device and the second network device, and the reference signal is used to detect link crosstalk.

[0078] The following describes in detail the concepts in the aforementioned method and describes in detail the optional implementations in the process of the aforementioned method.

[0079] First, parameter information is described.

[0080] The first network device and the second network device may use the same parameter information. The parameter information may include one or more types of information, and the parameter information may be reported or configured for network devices by a higher level node or an operation administration and maintenance (OAM) node. Alternatively, some types of parameter information may be specified using the protocol.

[0081] The parameter information may also be referred to as a global parameter and may include transmission resources configured for a plurality of network devices. The parameter information may indicate a set of resources in one or more of the sequence dimensions, the time domain dimension, and the frequency domain dimension. In one embodiment, the parameter information includes sequence indication information, and the sequence indication information is used to indicate one or more potentially suitable sequences. In another embodiment, the parameter information further includes frequency domain indication information, and the frequency domain indication information is used to indicate one or more potentially suitable frequency domain resources. In the present application, a resource in the time domain may have different implementations. Implementation 1: A resource in a time domain dimension may be indicated using parameter information. More specifically, the parameter information further includes time domain resource indication information, and the time domain resource indication information is used to indicate one or more potentially suitable time domain resources. Implementation 2: Alternatively, the resource in the time domain dimension may be specified in other information. More specifically, time domain resource indication information is carried in other information. Implementation 3: Alternatively, the time domain resource indication information may not be explicitly indicated using the information. In other words, the time domain resource indication information is implicitly indicated. The network device can determine the resource in the time domain dimension based on the network device ID, the sequence indication information, and the frequency domain indication information. The implicit specification method is described in detail below. It can be understood that potentially suitable sequences, potentially suitable frequency domain resources, and potentially suitable time domain resources are related to the reference signal.

[0082] In the present application, the network device periodically sends a reference signal in the dimension of the time domain. The send period is a resource in the time domain dimension, and each time domain resource in the reference signal period can be considered as a potentially eligible time domain resource of the network device. A plurality of network devices may send or receive a time division reference signal in one period. One period includes a plurality of time blocks, and one network device occupies one time block. The time block occupied by the network device is the time domain resource in the transmission resource used by the network device to send the reference signal. In the time domain, the uplink resource and the downlink resource of the network device are alternately occupied, and one downlink-to-uplink handover period includes an uplink resource, a downlink resource, and a guard period. If it is allowed to send the reference signal once in one downlink to uplink switching period, the reference signal is sent on several consecutive symbols in only one downlink to uplink period, for example, only on two consecutive symbols. In other words, the downlink to uplink switching period is equivalent to the minimum time granularity to send the reference signal. One time block may include one or more downlink to uplink switching periods. In other words, one network device can send one or more reference signals in one time block in one period.

[0083] Based on this, functions and additional forms of sequence indication information are described below.

[0084] The sequence indication information is used to indicate one or more potentially suitable sequences, or, in other words, is used to determine the set of reference signal sequences, namely the set of the maximum number of reference signals that can be sent and received in the entire network in one switching period from the downlink to the uplink. The sequence indication information may indicate the total number of potentially suitable sequences, or may indicate each specific sequence in the potentially suitable sequences.

[0085] The sequence indication information may include sequence initial phase indication information or sequence initial seed number indication information. In an example in which the RIM-RS is generated based on the gold sequence, the sequence designation information may indicate the initial phase of the gold sequence corresponding to each RIM-RS or information necessary to generate the initial phase. Table 1 shows an example of the sequence indication information for description. Of course, the sequence indication information may be presented in another form.

Table 1

Total number of RIM-RS sequences N ₁ Initial Phase Generation Parameters of Gold Sequences Corresponding to RIM-RS _C0 : xx C ₁ : yy ... C _N1-1 : zz

[0086] In Table 1, the sequence indication information indicates that the total number of potentially suitable RIM-RS sequences is N_1,and further indicates the initial phases of gold sequences corresponding to potentially suitable RIM-RS sequences. In a real application can be configured different N₁. For example, N₁ May be is 1, 2, 4, 8, or 16. Of course, that the total number of RIM-RS sequences is N₁, Not may be specified, or may be determined using the number of parameters of the initial phase of the gold sequences. Alternatively, the sequence indication information may indicate the number of bits needed to represent the total number of RIM-RS sequences, and this number of bits is denoted as. Usually. means that x is rounded up.

[0087] C0, C1, .. and C _N1-1 may be initial phases or may be information necessary to generate initial phases. If C0, C1, .. and C _N1-1 is the information necessary to generate the initial phases, then the network device can jointly generate, based on C0, C1, .. and C _N1-1 and other time-related information, the sequence RIM-RS used at different times. Other time-related information is, for example, a sending period number, a downlink-to-uplink switching period number, a subframe number, or a timeslot number. Thus, RIM-RS can change over time, thus providing better privacy.

[0088] Optionally, initial phase the gold sequence corresponding to the RIM-RS sequence can be represented by the following formula (1):

(1)

[0089] In the formula is the initial phase generation parameter indicated by the sequence indication information, and is the number of time blocks or the number of other time granularities, such as the number of periods. In addition, you can specify in advance that resets at a specific interval, eg resets at 00:00 UTC every 24 hours.

[0090] Initial phase the gold sequence corresponding to the RIM-RS sequence may also be represented by another formula, for example, represented by the following formula (1-2) or represented by another formula, provided that the initial phase can be determined based on the initial phase generation parameter indicated in the information sequence instructions:

(1-2)

[0091] If the initial phase of the RIM-RS or all parameters for generating the initial phase have been predefined in the standard protocol, then the higher layer node or OAM does not need to configure potentially suitable sequences using the parameter information.

[0092] Functions and additional forms of frequency domain indication information are described below.

[0093] The frequency domain indication information is used to indicate one or more potentially suitable frequency domain resources, or, in other words, is used to determine a set of potentially suitable frequency domain resources. The frequency domain indication information may indicate the total number of potentially eligible frequency domain resources, or may indicate a specific frequency position of each potentially eligible frequency domain resource. For example, the frequency domain indication information may indicate at least two of a start position frequency, an end position frequency, and an occupied bandwidth of each potentially suitable frequency domain resource.

[0094] Table 2 provides an example of frequency domain indication information for description. Of course, the frequency domain indication information may be presented in another form.

table 2

Total number of potentially eligible frequency domain resources N ₂ Starting position of potentially eligible frequency domain resources S ₀ : aa _S1 : bb .. S _N2-1: cc Bandwidth occupied by potentially eligible frequency domain resources _B2

[0095] The frequency domain designation information in Table 2 indicates that the total number of potentially eligible frequency domain resources of the reference signal is N₂, And additionally indicates the starting position and occupied bandwidth B₂ everyone potentially suitable frequency domain resource. Potentially eligible frequency domain resources are represented as S₀, .. And S_N2-1respectively, and starting positions of potentially suitable frequency domain resources are represented as aa, bb, cc, and the like. respectively. In actual application can be configured different N₂. For example, N₂ May be is equal to 1, 2, 4, 8, 16 or the like. Of course, the information N₂ about general the number of potentially suitable frequency domain resources is not necessarily indicated and may be determined based on the number of potentially suitable frequency domain resources. Alternatively, the frequency domain indication information may indicate the number of bits needed to represent the total number of potentially eligible frequency domain resources, and the number of bits is denoted as. Usually.

[0096] Start frequencies S_0,S₁, .. And S_N2-1can be represented by absolute frequencies, resource block (RB) numbers, or subcarrier numbers. Occupied width B₂ stripes may be represented by the absolute bandwidth, the number of consecutive RBs, or the number of consecutive subcarriers. In addition, the end position of each potentially suitable frequency domain resource can be used to replace the RIM-RS bandwidth, and this can also have the effect of indicating the bandwidth of the reference signal.

[0097] It should be noted that if at least two of the start positions, end positions, and various system bandwidths/carrier bandwidths/total number of potentially suitable frequency domain resources in the standard protocol are predefined in the standard protocol, then the higher layer node or OAM does not need to configure potentially suitable frequency domain resources with the parameter information.

[0098] If the parameter information further includes period indication information, the following describes the functions and additional forms of the period indication information. The period indication information may be specified in the parameter information, or may be specified using other information.

[0099] The period indication information is used to indicate potentially suitable time domain resources. The period indication information may indicate the time length of the period for sending the reference signal. For example, the period indication information indicates the total number N₃ temporary blocks included in one period. The period indication information may also indicate the number of bits required for the period length, and is denoted as. Usually. The downlink to uplink switching period with the minimum send granularity can be calculated by multiplying N₃ for the number of periods downlink to uplink switching included in each time block. As another example, the period indication information may also indicate the total number of downlink to uplink handover periods included in one period.

[00100] Considering that the reference signal may need to be resent to improve, or considering the effect of near and far range detection of distance, the reference signal needs to be sent at different symbol positions at different downlink to uplink switching periods. In this case, one time block may include a plurality of downlink to uplink switching periods. The network device sends a plurality of reference signals in a plurality of downlink to uplink switching periods.

[00101] Based on this, optionally, the reference information may further include one or more pieces of the following indication information to indicate a specific form of sending the reference signal. For distinction and description, the following uses the first indication information, the second indication information, the third indication information, and the like to indicate the sending form.

[00102] The first indication information is used to indicate the number of retransmissions of the reference signal. In one downlink to uplink switching period, typically only one time-frequency resource is used to send the reference signal. Here, retransmission refers to the number of retransmissions of the reference signal in one period. In other words, in one period and in a plurality of consecutive downlink-to-uplink handoff periods, the same reference signal is sent at the same time-frequency resource position in each downlink-to-uplink handoff period. Figure 4(a) and Figure 4(b) are used as an example. Fig. 4(a) shows an example of sending a reference signal in one period with a number of repetitions of 1. In other words, the reference signal is sent in only one downlink to uplink switching period in one period and is not resent. Fig. 4(b) shows an example of sending a reference signal in one period with a number of repetitions of 2. In other words, the same reference signal is sent twice at the same time-frequency resource position in two consecutive downlink switching periods. per uplink in one period. RIM-RS is used as an example of a reference signal.

[00103] The first indication information may indicate the number of times N₄resend the reference signal. In actual use, there may be different N configured₄, and N₄is a natural number or a positive integer. For example, N₄=1 can be used to indicate that the reference signal is not resent, but N₄=2 can be used to indicate that the same reference signal is sent twice at the same time frequency resource position in two consecutive downlink to uplink switching periods in one period. Optionally, the first indication information may further indicate the index of the predefined list, and each index represents a different number of repetitions. For example, N₄=0 can be used to indicate that the reference signal is not resent, but N₄=1 can be used to indicate that the same reference signal is sent twice at the same time frequency resource position in two consecutive downlink to uplink switching periods in one period. Of course, the first indication information may alternatively indicate the reference signal resending rule in another indication manner.

[00104] The second indication information is used to indicate the position of a symbol that carries the reference signal in the downlink to uplink switching period, for example, the position is represented as L _5. For example, the second indication information may indicate at least two of the initial the position and end position of the resource occupied by the symbol that carries the reference signal in the downlink to uplink handoff period and the total number of occupied symbols to represent the position of the symbol that carries the reference signal in the downlink to uplink handoff period connections. When the total number of symbols occupied by the reference signal is predetermined, the second indication information may indicate one of the start position and end position of the resource occupied by the symbol that carries the reference signal in the downlink to uplink switch period to represent a symbol position, which carries the reference signal in the downlink to uplink switching period. In the example in which the reference signal is RIM-RS, the symbol is an orthogonal frequency division multiplexing (OFDM) symbol. When the second indication information indicates the position of a symbol that carries the RIM-RS, there may be a variety of ways. For example, the symbol index of the first symbol or the last symbol in a plurality of OFDM symbols occupied by the RIM-RS in one downlink to uplink handover period may be indicated. As another example, the timeslot number in which the first symbol or the last symbol of the set of OFDM symbols occupied by the RIM-RS resides, and the symbol index of the first symbol or the last symbol in the timeslot may be specified. As another example, the number of offset symbols relative to the reference position of the first symbol or the last symbol in the set of OFDM symbols occupied by the RIM-RS may be indicated. The reference position may be an OFDM symbol, eg, the last downlink OFDM symbol or the first uplink OFDM symbol in the downlink to uplink handover period. The reference position may be preconfigured or predetermined, or may be included in the second indication information.

[00105] For example, as shown in FIG. 5, if the reference signal is sent once in the downlink to uplink switching period and two symbols are occupied, then the second indication information may indicate the first symbol of two symbols or indicate the last symbol of two characters. In particular, the character index of the first character or the last character may be specified. For example, in FIG. 5, the symbols in the downlink to uplink switching period are numbered from 0, and the two symbols occupied for sending the reference signal are numbered 49 and 50. In this case, the second indication information may indicate at least two of character number 49 or character number 50, or indicate that two characters are occupied.

[00106] In addition, the second indication information may further indicate a plurality of different positions. In other words, the positions for sending the reference signal are different in different downlink to uplink switching periods. In this case, the second indication information may indicate the total number of symbol positions that carry the reference signal in the switch period from downlink to uplink, and may further indicate information about a specific position. In an example in which the reference signal symbol is a RIM-RS symbol, a possible representation form is shown in Table 3. The second indication information indicates the number N₅ RIM-RS symbol positions and optionally specifies each RIM-RS symbol position. For example, the number of positions is 2, and each position of the RIM-RS symbol is represented by {L_5-0, L_5-1}. Similarly, the number N₅ RIM-RS character positions are optional and can be determined based on the number of information about each position of the RIM-RS symbol.

Table 3

Number of RIM-RS character positions N ₅ RIM-RS character position {L5-0 _{, L5-1} }

[00107] For example, as shown in FIG. 6, in the time block, the symbol position of the reference signal in period 1 of the downlink to uplink hop is position 1, and the symbol position of the reference signal in period 2 of the downlink to uplink hop is the communication line is position 2.

[00108] By specifying a plurality of different symbol positions of the reference signal, different symbol positions of the reference signal can correspond to different detection distances, and the reference signal is sent at different symbol positions in the plurality of downlink to uplink switching periods, so that the detection range is the distance between generating the interference between the base station and the interfering base station can be increased.

[00109] If the number N ₄ times indicated by the first indication information, resending the reference signal refers to a plurality of times, and there are also a plurality of positions N ₅ indicated by the second indication information, of symbols of the reference signal in the downlink to uplink switching period , then in an exemplary implementation, N ₄ *N ₅ downlink to uplink switching periods are included in one time block. The reference signal may be sent in the method of resending the reference signal N ₄ times at the same symbol position in each downlink to uplink switching period one after the other. Specifically, the reference signal is first resent N ₄ times at first symbol positions in N ₄ consecutive downlink to uplink switch periods, then resent N ₄ times at second symbol positions in N ₄ consecutive downlink switch periods. to the uplink, etc. until the reference signal is retransmitted N ₄ times at N ₅ th symbol positions. Thus, at the receiving side, pattern detection can be performed for reference signals that have the same symbol position, and centralized repetition of the reference signals helps to avoid the deterioration of combination performance caused by radio channel change.

[00110] For example, as shown in Fig.7, N ₄ =2 _. In this case, one time block includes 2*2=4 downlink to uplink switching periods. The two symbol positions of the reference signal are represented by position 1 and position 2. The reference signal may be sent at position 1 of downlink to uplink switch period 1 and position 1 of downlink to uplink switch period 2, and the reference signal may be sent at positions 2 of downlink to uplink switch period 3 and positions 2 of downlink to uplink switch period 4. Thus, in one time block, the first network device sends a total of four identical reference signals in four downlink to uplink switching periods.

[00111] In the prior art, downlink to uplink handover period patterns may be different. Patterns refer to patterns of positions and proportions occupied by uplink resources, downlink resources, and guard intervals during downlink to uplink handover periods. As shown in FIG. 8, the network device configures two downlink to uplink handover periods with different patterns, which may be referred to as pattern 1 and pattern 2. The proportions of downlink resources and uplink resources in pattern 1 and template 2 may be different. When two downlink-uplink switching period patterns are configured, the downlink-uplink period corresponding to pattern 1 and the downlink-uplink period corresponding to pattern 2 may be cyclically interleaved with each other. .

[00112] Considering that the downlink to uplink switching period patterns may be different, the following describes in detail methods for specifying a reference signal when the patterns are different.

[00113] Typically, the reference signal may be sent in one or more different patterns, or the reference signal may be sent in each of the different patterns. Regardless of which send method is used, the scheme's requirements for the number of retransmissions of the reference signal and the symbol position of the reference signal must be satisfied.

[00114] In the present application, the parameter information may further include third indication information. The third indication information is used to indicate a downlink-to-uplink handoff period for carrying a reference signal in downlink-to-uplink handoff periods of various patterns. For example, the downlink to uplink switching periods of the two patterns are represented by the first downlink to uplink switching period and the second downlink to uplink switching period, and the first downlink to uplink switching period and the second downlink-to-uplink handoff period of the link are contiguous in the time domain. The third indication information is used to indicate the downlink-to-uplink handoff period which is used to carry the reference signal and which is in the first downlink-to-uplink handoff period and the second downlink-to-uplink handoff period. . Specifically, the third indication information is used to indicate the transfer of the reference signal only in the first downlink to uplink switching period, the transfer of the reference signal only in the second downlink to uplink switching period, or the transfer of the reference signal as in the first period. switching from the downlink to the uplink, and in the second period of switching from the downlink to the uplink.

[00115] An example of a presentation form of the third indication information is shown in Table 4. The third indication information in Table 4 indicates the amount represented as N₆, switching periods from the downlink to the uplink to carry the reference signal, and further indicates specific downlink to uplink switching period patterns used to carry the reference signal. The first downlink to uplink switching period is represented by P₁, A the second downlink to uplink switching period is represented by P₂. Assuming_,that the reference signal is only carried in the second downlink to uplink switching period is indicated {P₂}.

Table 4

Number of downlink to uplink switching period patterns for carrying the reference signal No. ₆ Downlink to Uplink Switch Period Pattern { _P2 }

[00116] Similarly, information on the number of downlink to uplink handover periods for carrying the reference signal is optional, and the first network device may determine information based on the number of downlink to uplink handoff period patterns for handover. reference signal. For example, the third indication information may further indicate using N₆=1 and {P₁} that the RIM-RS is only transmitted in the first downlink to uplink handoff period, or may indicate using N₆=2 and {P_1,P₂} or {'Both'}_,that the RIM-RS is transmitted in two downlink to uplink switching periods. The specific shape is not limited. If it is predetermined that when the network device configures two downlink to uplink handover periods, only one downlink to uplink handoff period is used for transmitting the reference signal, the third indication information may only indicate that the reference signal is sent in a specific one of the two downlink to uplink switching periods.

[00117] Whereas the patterns of downlink to uplink switching periods are different, with reference to the above diagram of the number of times to resend the reference signal and symbol positions of the reference signal, the following describes, using examples, methods for specifying the reference signal when patterns, number of repetitions, and symbol positions of the reference signal are different.

[00118] Case 1:

[00119] The first indication information indicates that the number of times to resend the reference signal is N₄, second indication information indicates that the total number of symbol positions carrying the reference signal in downlink to uplink switching periods is N₅, and the third indication information indicates_,that there is only one downlink-uplink handover period for carrying the reference signal, and this downlink-uplink handover period may be referred to as the actual downlink-uplink handover period.

[00120] In this case, the first network device must transmit the RIM-RS within the allowable downlink to uplink switchover period. If there are two downlink-to-uplink handoff periods, the first network device transmits the RIM-RS at an interval of one downlink-to-uplink handoff period. The position of the first character can be repeated N₄ once_,then the position of the second character is repeated N₄ times and so on until N₅-and I character position will not happen again N₄ once.

[00121] As shown in Fig. 9, it is assumed that the number of repetitions N₄ equals 2_,quantity N₅ reference character positions of the signal is 2, the symbol positions of the reference signal in the downlink to uplink switching periods are positions 1 and positions 2, and the downlink to uplink switching period patterns are, for example, pattern 1 and pattern 2. In addition furthermore, only the last of the two downlink-to-uplink handover periods is a valid downlink-to-uplink handover period. In this case, the process of sending the reference signal in one time block is shown in FIG. Four identical reference signals are sent in one time block.

[00122] Case 2:

[00123] The first indication information indicates that the number of times to resend the reference signal is N₄, second information indication indicates that the total number of symbol positions carrying the reference signal during downlink to uplink switch periods is N₅, and the third information indication indicates that there are two downlink to uplink switching periods to carry the reference signal. Both downlink to uplink handover periods are valid downlink to uplink handover periods. The number of downlink to uplink handoff periods included in one time block is twice as many as the downlink to uplink handoff periods of one pattern. Of course, two templates are used as an example. In actual application, there may be more than two patterns.

[00124] In this case, the first network device transmits the RIM-RS within two valid downlink to uplink switching periods. Since there are two patterns of allowed downlink to uplink switching periods, the first symbol position may first repeat 2*N₄ once_,then the second character position is repeated 2*N₄ once and so further until N₅-th character position will not repeated 2*N₄ times.

[00125] As shown in Fig. 10, it is assumed that the number of repetitions N₄ equals 2_,quantity N₅ reference character positions signal is 2, the symbol positions of the reference signal in the downlink to uplink switching periods are positions 1 and positions 2, and the downlink to uplink switching period patterns. are, for example, pattern 1 and pattern 2. In addition, two downlink-to-uplink handover periods are valid downlink-to-uplink handoff periods. In this case, the process of sending the reference signal in one time block is shown in FIG. Eight identical reference signals are sent in one time block.

[00126] Case 3:

[00127] The first indication information indicates that the number of times to resend the reference signal is N₄, the second indication information indicates that the total number of symbol positions carrying the reference signal in downlink to uplink switching periods is N₅, and third indication information indicates that there are two downlink to uplink switching periods to carry the reference signal. Both downlink-to-uplink handover periods are valid downlink-to-uplink handover periods. The number of downlink to uplink switching periods included in one time block is equal to the number of downlink to uplink switching periods of one pattern.

[00128] In this case, the first network device may not distinguish between the downlink-to-uplink switching period patterns, and this can be understood as that the sending method is the same as in the downlink-to-uplink switching periods. the same template. In particular, the position of the first character is repeated N₄ once, then the position of the second character is repeated N₄ once and so further until N₅-th character position is not repeat N₄ once.

[00129] As shown in Fig. 11, it is assumed that the number of repetitions N₄ equals 2_,quantity N₅ reference character positions of the signal is 2, the symbol positions of the reference signal in the downlink-to-uplink switching periods are positions 1 and positions 2, and the downlink-to-uplink switching periods are, for example, pattern 1 and pattern 2. In addition to In addition, two downlink-to-uplink handover periods are valid downlink-to-uplink handoff periods. In this case, the process of sending the reference signal in one time block is shown in FIG. Four identical reference signals are sent in one time block.

[00130] Finally, the number of downlink to uplink switching periods included in one time block in the present application can be determined as follows.

[00131] When a network device is configured with one downlink to uplink handoff period pattern, the number of downlink to uplink handoff periods included in one time block can be determined based on the number of repetitions N₄ And quantity N₅ symbol positions reference signal, and the number of downlink to uplink switching periods included in one time block is N₄*N₅.

[00132] When a network device is configured with m downlink to uplink handoff period patterns, the number of downlink to uplink handoff periods included in one time block can be determined based on the number of repetitions N₄, quantities N₅symbol positions of the reference signal and a valid downlink to uplink switchover period. When only one downlink to uplink handoff period is a valid period, the number of downlink to uplink handoff periods included in one time block is 2*N₄*N_5.When all m downlink to uplink switching periods are valid periods, the number of downlink to uplink switching periods included in one time block is m*N₄*N₅ or N₄*N₅. For example_,m=2_,and when both downlink-uplink switching periods are valid periods, the number of downlink-uplink switching periods included in one time block is 2*N₄*N₅ or N₄*N₅.

[00133] So far, the foregoing details the parameter information in this application. The parameter information is applicable to both the first network device and the second network device.

[00134] For the first network device, before sending the reference signal, the first network device must determine the transmission resource of the reference signal. The first network device may determine the transmission resource of the reference signal based on the identification information and parameter information. The identity information may also be configured by the higher layer node and OAM.

[00135] The identification information may also be referred to as an identification number or identifier and is mainly used to identify and represent a network device that sends a reference signal (RIM-RS). In other words, the identification information is used to identify the first network device. The identity information may be determined in a variety of ways. For example, the identification information may be a gNB identifier (gNB ID) in the NR, or may be a gNB group identifier (set ID) obtained after NR cell grouping, or may be an identifier obtained by performing further binding transformation based on the gNB identifier or set, for example, there may be N high bits or N low bits of the gNB identifier or set identifier, or may be another predefined identifier. The identification information may carry specific coordination information. One gNB may have one or more identification numbers. For example, one gNB can have two identities: id 1 and id 2. When the gNB is used as an interfering base station, the gNB corresponds to id 1, and when the gNB is used as an interfering base station, the gNB corresponds to id. number 2. The gNB may determine, based on the gNB's interfering/interference state, to send the RIM-RS corresponding to ID 1 and/or ID 2.

[00136] The first network device may select, based on the identification information and from potentially suitable resources indicated in the parameter information, the transmission resource used by the first network device to send the reference signal.

[00137] Specifically, the first network device determines, from one or more potentially suitable sequences indicated by the sequence indication information, a reference signal sequence corresponding to the identification information. The first network device determines, from one or more potentially suitable frequency domain resources indicated by the frequency domain indication information, a frequency domain resource corresponding to the identification information. If the parameter information includes period indication information or period indication information is indicated in other information, the first network device determines, in the period indicated by the period indication information, a time domain resource corresponding to the identification information. If the parameter information does not include period indication information, the first network device can determine the period of the reference signal based on the identification information, the sequence indication information, and the frequency domain indication information, and then determine the time domain resource corresponding to the identification information in said period.

[00138] How the identification information corresponds to the transmission resource that is in the potentially eligible resources and that is used by the first network device to send the reference signal can be implemented as follows:

[00139] Based on the parameter information, a resource space {code, frequency, time} can be determined, which includes a sequence, a frequency domain resource, and a time domain resource. Each resource in the resource space corresponds to an index of one resource. denoted as a sequence index, denoted as the frequency domain index, and denoted as the time domain index. In this case, the combination can be used as a resource index from the resource space {code, frequency, time}. In particular, with a different value corresponds to a different resource in code, frequency, and time resource space.

[00140] Optionally, a number can be used as a resource index in code, frequency, and time resource space. For example, the relationship between And can be determined by formula (2):

(2)

[00141] is the number of bits needed to represent the number of frequency domain resource positions, and is the number of bits required to represent the number of time blocks in one reference signal transmission period. Usually, N₂ is the number of positions of potentially eligible frequency domain resources, and indicates that x is rounded up. For example, if there are a total of three positions of potentially suitable frequency domain resources, the value equals 2. has a similar case. Usually N₃ is the number of time blocks included in one transmission period of the reference signal.

[00142] In formula (2), the relationship between And can be represented in Fig.12. It is assumed that the number of bits is N, and the number of bits required to represent the number of sequences is 3. Usually And equals 2.

[00143] In contrast, the anchor relationship between And can be represented from formula (3) by formula (6):

(3)

(4)

(5)

[00144] Given that always less than or equal , formula (5) can also be written as:

(6)

[00145] It should be noted that the correspondence between the N bits of identification information in relation to the binding and " bits used to determine the sequence index", " bits used to determine the positions of the frequency domain resources" and " bits used to determine the time domain resource" may also have a different form, and And are not limited the most significant bits middle beats and the least significant bits in N bits, provided that the bits are clearly in one-to-one correspondence. For example, And may alternatively be the least significant bits middle beats and the most significant bits or the least significant bits the most significant bits and middle bits in N bits of identification information. The corresponding mathematical dependence can also be expressed similarly to formula (2).

[00146] The first network device may determine one piece of resource index information based on the identification information. The resource index information here is a resource index indicating the resource space {code, frequency, time}, and can be considered as the above . Optionally, the identification information may be equivalent to the resource index information, or the link relationship between the identification information and the resource index information may be established in an operational order such as reverse order or modulo operation. In addition, the first network device can also determine the resource index information of various areas based on the identification information. For example, the sequence index information is determined based on the first part of the identification information, the frequency domain index information is determined based on the second part of the identification information, and the time domain index information is determined based on the third part of the identification information.

[00147] The first network device can determine the sequence index information corresponding to the identification information, and determine from potentially suitable sequences a reference signal sequence corresponding to the sequence index information. The first network device may also determine the frequency domain index information corresponding to the identification information, and determine from the potentially suitable frequency domain resources the frequency domain resource corresponding to the frequency domain index information. If the network device is notified or configured with the period indication information, the first network device can determine the time domain index information corresponding to the identification 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, then the network device may determine the period implicitly. Specifically, the first network device determines, based on the identification information, the sequence indication information, and the frequency domain indication information, the period of the reference signal, the time domain index information corresponding to the identification information, and the time domain resource that corresponds to the time domain index information in said period.

[00148] For example, as shown in FIG. 13, the linkage relationship between resource index information and resources in different areas is as follows: The resource index information may be a general resource index, or may be divided into sequence index information, frequency domain index information, and time domain index. For example, the resource index includes N bits, which are represented as A _N-1 A _N-2 A _N - ₃ ...A ₁ A ₀ . It is assumed that the maximum number of reference signal sequences is 8, the maximum number of potentially suitable frequency domain positions is 4, and the time domain period is 2 ^N-5 time blocks in one downlink to uplink switching period. A single downlink-to-uplink handover period pattern is configured for the network device, and each time block includes four downlink-to-uplink handover periods. Information sequence index is the most significant three bits of the resource index information, and the specific value of three bits determines which of the eight sequences is the reference signal sequence sent by the first network device. For example, if the value three bits is "011", namely 3 in decimal notation, the first network device sends the reference signal sequence with index 3. Frequency domain index information is the fourth and fifth bits of the resource index information, the specific value of these two bits determines which of the four frequency domain resources is used by the first network device when the first network device sends the reference signal. For example, if the value two bits is '01', namely 1 in decimal notation, the first network device sends a reference signal at a potentially suitable frequency domain resource position whose index is 1. it is the N-5 least significant bits of the resource index information. specific meaning of these N-5 bits determines which of ^{the 2N-5} time blocks is the time block in which the first network device sends the reference signal, in other words, determines the position of the time block of the reference signal. Alternatively, one can consider that the value indicates the index of the time block, or it is considered that this value indicates the offset between the time block in which the reference signal is located and the starting position of the period.

[00149] In Fig. 13, one time block includes four downlink to uplink switching periods. This is determined because the number of repetitions of the RIM-RS reference signal is 2 and there are two symbol positions of the reference signal. In FIG. 13, the downlink to uplink period of one pattern is used as an example. If the first network device configures two downlink to uplink handover periods, the number of downlink to uplink handoff periods included in the time block is further related to the actual downlink to uplink handover period.

[00150] It should be further noted that in the present application, the first network device may determine one or more of the sequence, the frequency domain resource, and the time domain resource of the reference signal based on the identification information. For example, if there is only one potentially suitable resource in the frequency domain, in this case , in other words, the frequency domain resource of the reference signal does not need to be specified and is unique. In this case, the frequency domain index information may not be determined based on the identification information, in other words, the frequency domain resource is not determined based on the identification information, and the sequence and time domain resource of the reference signal corresponding to the identification information are determined only based on the identification information. Similarly, if there is only one potentially suitable reference signal sequence, in this case N _seq =0, and there is no need to indicate the sequence corresponding to the reference signal. In this case, the sequence index information may not be determined based on the identification information, in other words, the sequence is not determined based on the identification information, and the frequency domain resource and the time domain resource of the reference signal corresponding to the identification information are determined only based on the identification information. In a possible case, there is only one potentially suitable resource in the frequency domain, and if there is only one potentially suitable reference signal sequence, that is, N _{fre q} =0 and N _seq = 0, which also means that if both the frequency domain resource and the reference signal sequence does not need to be specified, the sequence index information or the frequency domain index information may not be determined based on the identification information, in other words, the frequency domain sequence or resource is not determined based on the identification information, but the time domain reference signal resource corresponding to the identification information , is determined only on the basis of identification information.

[00151] The first network device determines the resource index information corresponding to the identification information, in other words, can determine the resource in each area based on the resource index information. As shown in FIG. 14, the identification information may directly be resource index information. For example, the resource index information of the first network device is information about N bits represented as A_N–1A_N–2A_N–3...A₁A_0,and identification information is B_N–1B_N-2B_N–3...B₁B₀. If the value of A_N–1A_N–2A_N–3...A₁A₀ equals 1101001111, then 1101001111 is also index value A_N–1A_N–2A_N–3...A₁A₀a reference signal resource corresponding to the identification information.

[00152] If neither the parameter information nor other information includes period indication information, then the first network device determines the number of remaining bits based on the number of bits of the identification information, the sequence index information, and the frequency domain index information, and determines the period based on the number S remaining bits and 2^S. Then the first network device determines the time block of the reference signal in one period based on the values corresponding to the remaining bits.

[00153] On the receiving side, the second network device determines the receive resource based on the parameter information. The reception resource is equivalent to a resource space {code, frequency, time} that includes a sequence, a frequency domain resource, and a time domain resource, and which is determined based on the parameter information. The second network device receives or detects the reference signal on the receive resource. The second network device determines the transmission resource on which the reference signal is received. The symbol on which the first network device sends the reference signal is determined using the symbol on which the reference signal is received, and the frequency domain resource on which the reference signal is received is determined. The sequence corresponding to the reference signal is determined based on the reference signal. The second network device determines the identification information of the reference signal based on one or more areas in the transmission resource of the reference signal. For the identification information determination method, refer to the first network device's transmission resource determination method based on the identification information. For example, the second network device determines the sequence index information based on the reference signal sequence, determines the frequency domain index information based on the frequency domain resource of the reference signal, and/or determines the time domain index information based on the time domain resource of the reference signal, and determines the identification information of the first network device on based on one or more of sequence index information, frequency domain index information, and time domain index information. Optionally, the time domain resource corresponding to the receive resource of the second network device is an uplink resource, and the time domain resource corresponding to the transmission resource of the first network device is a downlink resource. These two resources are different. This is caused by a delay due to remote transmission.

[00154] Finally, in the above method, the first network device can determine, based on the identification information and parameter information, the sequence and time-frequency resources to send the reference signal. The parameter information is applicable to both the first network device and the second network device. The second network device may perform reception or discovery in the potentially suitable time-frequency resources and sequence set based on the parameter information, and determine, based on the detected sequence and time-frequency resources of the reference signal, the identification information of the first network device that sends the reference signal to send and receive reference signal. In addition, according to the embodiment of the reference signal in the present application, under different network configurations and detection requirements, the reference signal can be flexibly sent and received when remote interference measurement between network devices is performed. Because the reference signal is flexibly configured, the requirements for different numbers of reference signal sequences and different network bandwidth can be met. In addition, the reference signal can be configured according to different repetition increase requirements and detection distance requirements, so that network devices in networks with different deployment characteristics can perform remote interference measurements.

[00155] In addition, in this embodiment of the present application, the reference signal may further carry more side information. For example, the reference signal is used to indicate whether the network device that sends the reference signal is an interfering base station or an interfering base station. As another example, the reference signal is used to indicate whether the interference cancellation used by the interfering station is sufficient. Details are described below.

[00156] Additional information of the first type:

[00157] In a remote interference measurement application scenario, the reference signal may be represented as RIM-RS. The RIM-RS may carry some information used for coordination between network devices, and this information is referred to as Type 1 side information. The first type side information can be used to distinguish whether the network device sending the RIM-RS is a "interfering base station" or "interfering base station". Alternatively, the first type side information is used to distinguish whether the RIM-RS is RS-1 or RS-2.

[00158] In particular, RIM-RS can be divided into two types. One type is sent by the "interfering base station" and referred to as RS-1, and the other type is sent by the "interfering base station" and referred to as RS-2. In this case, the network device that detects the RIM-RS can know whether the network device that sends the RIM-RS is an interfering base station or an interfering base station so that the interference cancellation policy can be adjusted. For example, if a network device detects RS-1 during the entire period of sending RIM-RS, then this indicates that the network device may cause obvious interference to another network device, and interference elimination should be performed. Some network devices are both interfering base stations and interfering base stations and can send both RS-1 and RS-2.

[00159] In this embodiment of the present application, the first type additional information may be indicated using time domain index information. At some times, the RIM-RSs sent and/or received by all network devices are RS-1. At some other times, the RIM-RSs sent and/or received by all network devices are RS-2s.

[00160] Two potentially suitable methods for indicating additional information of the first type are described below, both of which are implemented using time domain index information.

[00161] Method 1: The bit at the first given position in the time domain index information is determined by the reference signal discrimination information. The reference signal discrimination information is used to distinguish whether the network device sending the RIM-RS is a "interfering base station" or "interfering base station". Alternatively, the reference signal discrimination information is used to distinguish whether the RIM-RS is RS-1 or RS-2.

[00162] The reference signal discrimination information may be configured by a higher layer node or OAM. For example, the higher level node or OAM may configure a portion of the reference signal discrimination identification information for the network device to indicate whether the reference signal discrimination information exists. The first network device may determine the value of the reference signal discrimination information based on the interference state of the first network device. Considering that the reference signal discrimination information indicates two types, the reference signal discrimination information may occupy one bit, and whether the network device that sends the RIM-RS is "interfering base station" or "interfering base station" or RIM-RS is RS-1 or RS-2, differs based on different bit values. For example, the bit value is 0 (or 1) when the RIM-RS is "RS-1" and the bit value is 1 (or 0) when the RIM-RS is "RS-2".

[00163] The value of the reference signal discrimination information is used to determine the point in time at which the RIM-RS is sent. Because the bit values are different when the RIM-RS is RS-1 or RS-2, the time domain resources used by RS-1 and RS-2 are different. The second network device at the receiving end may also determine, based on the various times at which the RIM-RS is received, whether the received RIM-RS is sent by the interfering base station or the interfering base station.

[00164] The first given position may be the most significant or least significant bit in the time domain index information, or any given position. Based on the examples in FIG. 14, as shown in FIG. 15, the most significant bit in the time domain index information is determined by the reference signal discrimination information and is represented as RS1/2. This helps to distinguish between RS-1 and RS-2 in time. For example, 11 bits including 1 bit of reference signal discrimination information "RS-1/RS-2 discrimination bit" as the most significant bit and 10 least significant bits of identification information represent a total of 2048 time blocks. In this case, the first 1024 time blocks correspond to RS-1 and the last 1024 time blocks correspond to RS-2, so that the bypass of RIM-RSs sent by the interfering base station or the interfering base station can be completed even faster. Of course, the reference signal discrimination information "RS-1/RS-2 Distinction Bit" can also be used as the least significant bit to determine the RIM-RS time block, which is also possible.

[00165] In Method 1, the duration of the identification information is less than the duration of the resource index information. The first network device determines the bit value at the first predetermined position in the time domain index information based on the current interference state, then determines all resource index information based on the identification information and the bit value at the first predetermined position, or determines three domain index information, and then determines the resource transmissions in each area based on the resource index information.

[00166] Method 2: Various types of reference signal are distinguished, or whether the network device sending the reference signal is an interfering base station or an interfering base station is determined by two pieces of identification information.

[00167] The two pieces of identification information include a first identification information and a 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.

[00168] The two pieces of identification information may also be configured by the higher level node or OAM. The first network device may determine, based on the current interference state, which part of the identification information is used to determine the transmission resource. The first time domain index information and the second time domain index information correspond to different types of the reference signal, respectively, or are used to distinguish whether the network device that sends the reference signal is an interfering base station or an interfering base station. For example, the first time domain index information is used to indicate that the network device that sends the reference signal is an interfering base station or that the reference signal is RS-1. The second time domain index information is used to indicate that the network device that sends the reference signal is a base station subject to interference or that the reference signal is RS-2.

[00169] In case 1 of method 2, both the first time domain index information and the second time domain index information are used to indicate the time domain resources of the entire transmission period. The network device can directly determine the positions of the time domain resources in the entire transmission period based on the first time domain index information or the second time domain index information. When determining that the network device is the interfering base station, the network device selects the first identification information to determine the transmission resource, and when determining that the network device is the interfering base station, the network device selects the second identification information to determine the transmission resource . Specifically, the network device determines the first time domain resource in said period based on the first time domain index information corresponding to the first identification information, and transmits a reference signal on the first time domain resource. Specifically, the network device determines the second time domain resource in the period based on the second first time domain index information corresponding to the second identification information, and transmits a reference signal on the second time domain resource.

[00170] For example, as shown in Fig. 16, one period includes eight time blocks, and the values corresponding to the eight time blocks are 000 to 111, respectively. The three least significant bits with B₂ by B₀ first identification information (identification information 1) correspond to three bits with A₂ By A₀ the first time domain index information, and the first time domain index information corresponds to the first four time blocks of the period. The three least significant bits with B₂by B₀ the second identification information (identification information 2) correspond to three bits with A₂ by A₀ the second time domain index information, and the second time domain index information corresponds to the last four time blocks of the period. Value range of the least significant three bits with B₂ by B₀ identification information 1 is out of range of the least significant three bits from B₂ by B₀ identification information 2_,which are 000 to 011 and 100 to 111 respectively to make sure RS-1 and RS-2 can be distinguished in time.

[00171] According to the method in case 1 of method 2, the network device can derive the time duration of the entire period from any part of the identification information, and all parts of the identification information can use the same binding method. Therefore, the implementation is simple. The anchor method is the anchor relationship between a bit value and a potentially eligible time domain resource in a period.

[00172] In the method in case 1 of method 2, the number of bits of the first identification information is equal to the number of bits of the second identification information, or the number of bits of information of the first time domain index is equal to the number of bits of information of the second time domain index. This is also determined because the periods indicated by the first identification information, the second identification information, the first time domain index information, and the second time domain index information are the same period (namely, the entire transmission period of the reference signal). From the point of view of sending RIM-RS in this method, there is no difference between this embodiment and Embodiment 1. However, it should be noted that when the network is notified/configured with multiple pieces of identification information, it should be ensured that the time block that RS-1 can use is different from the time block that RS-2 can use. In terms of receiving RIM-RS, in order for a second network device that receives RIM-RS to be able to identify that the RIM-RS is RS-1 or RS-2, the second network device can be further notified/configured with a portion of the time range discrimination information to distinguish between the time range that RS-1 can use and the time range that RS-2 can use. For example, in FIG. 11, to notify that in a period of eight time blocks, the RIM-RS in the first four time blocks are RS-1 and the RIM-RS in the last four time blocks are RS-2, the time range discrimination information may be {RS-1: 000-011, RS-2: 100-111}. The time range discrimination information may also notify the ratio, for example, {1:1}, of the time period occupied by one RS-1 to the time period occupied by one RS-2, notifying the position of the start/end time block for the RS-1, and /or RS-2, or the like, as long as the second network device can determine, based on the point in time at which the RIM-RS is detected, whether the RIM-RS is RS-1 or RS-2.

[00173] In the description of this document, distinguishing whether the reference signal is RS-1 or RS-2 may be equivalent to distinguishing whether the network device that sends the reference signal is an interfering base station or an interfering base station.

[00174] Method 2 has another case 2: The first time domain index information is used to indicate the first time domain resource of the first sub-period, and the second time domain index information is used to indicate the second time domain resource of the second sub-period. The first sub-period and the second sub-period constitute the entire transmission period, namely the entire period. The network device may determine the position in the first sub-period based on the first time domain index information, and then determine the positions of the time domain resources in the entire transmission period based on the first offset. The network device may determine the position in the second subperiod based on the second time domain index information, and then determine the positions of the time domain resources in the entire transmission period based on the second offset. The first offset is determined by the second sub-period and the second offset is determined by the first sub-period.

[00175] For example, as shown in FIG. 17, one period includes six time blocks, the first sub-period includes four time blocks, and the second sub-period includes two time blocks. The first identification information (namely, identification information 1) has seven bits, and the values of two bits (eg, N _tu1 =2 least significant bits) indicate the position of the reference signal in the first sub-period (four time blocks). For example, 00 represents the first time block in four time blocks, and 01 indicates the second time block in four time blocks. The second identification information (namely, identification information 2) has six bits, and the value of one bit (for example, N _tu2 =1 least significant bit) indicates the position of the reference signal in the second sub-period (two time blocks). For example, 0 represents the first time block in two time blocks in the second sub-period, and 1 represents the second time block in two time blocks in the second sub-period. N _tu1 and N _tu2 are respectively the number of bits required to represent an RS-1 period in the first sub-period and the number of bits required to represent an RS-2 period in the second sub-period. The total transmission period of the reference signal is the sum of the RS-1 period and the RS-2 period, for a total of six time blocks.

[00176] Six time blocks may be indicated by the least significant three bits of a resource index, namely indexes with A₂ by A₀ time domain resources. When the resource index information (time domain resource index information) is determined based on the identification information for RS-1, the network device can determine the first time domain resource using the information B₁B₀ first time domain index, corresponding to the first identification information and a first offset value (denoted as offset 1). Optionally, indexes with A₂ by A₀ resources time domain, and then the first time domain resource is further determined. The first time domain resource is one of the first four time blocks. For RS-2, the network device may determine the second time domain resource using the information B₀ second time domain index_,corresponding to the second identification information and the second offset value (denoted as offset 2). Optionally, indexes with A₂ to A₀ resources time domain, and then a second time domain resource is further defined. The second time domain resource is one of the last two time blocks.

[00177] In this method, the offset value corresponding to identification information 2 may be determined based on the first sub-period corresponding to identification information 1, or the offset value corresponding to identification information 1 may be determined based on the second sub-period corresponding to identification information 2. B possible implementation, 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 Fig.17, if =2, then the offset value 2 is 4. When the time domain position indicated by the second time domain index information B ₀ is the first time block _, then the offset value 4 2 is added to obtain that the time domain position was the fifth time block, and corresponded to the position in the entire transmission period, which includes six time blocks. Specifically, when the value of offset 1 corresponding to identification information 1 is 0, offset 1 may be omitted. In other words, it is not required to use an offset value when calculating the time domain resource corresponding to identification information 1. Similarly, when the offset value 2 corresponding to identification information 2 is 0, offset 2 can be omitted. In other words, it is not required to use an offset value when calculating the time domain resource corresponding to identification information 2.

[00178] Thus, the first identification information need only indicate the position in the time domain in the first sub-period, and the first sub-period is usually less than the entire transmission period. Therefore, compared with the case in which the first identification information needs to indicate positions in the time domain in the entire transmission period, a relatively small number of bits are required, and the signaling overhead can be reduced. The second identification information need only indicate the position in the time domain in the second sub-period, and the second sub-period is usually less than the entire transmission period. Therefore, compared with the case in which the second identification information needs to indicate positions in the time domain in the entire transmission period, a relatively small number of bits is required, and the signaling overhead can be reduced.

[00179] It should be noted that in case 2 of method 2, the number of bits of the first identification information is different from the number of bits of the second identification information. This is also because the periods indicated by the first identification information and the second identification information are sub-periods of the first identification information and the second identification information. Therefore, in the global parameters of the first identity and the second identity is different. Optionally, different pieces of identification information are configured/notified with different when the network device is configured/notified. Alternatively, the network device defines different based on the number of bits of identification information, And . That is, the same cannot be used for RS-1 and RS-2 at the same time. Therefore, different pieces of identification information correspond to different . For example, RS-1 corresponding to identification information 1 corresponds to , and RS-2 corresponding to identification information 2 corresponds to . And may be notified/configured by OAM or a higher layer node, or may be calculated based on the number of identity information bits 1 or the number of identity information bits 2 together with And .

[00180] In case 2 of method 2, from the point of view of sending RIM-RS, when the position of RS-1 in the time domain in each period is determined, the position of RS-1 in the first sub-period must be considered, and the influence of the second RS-2 sub-period must be considered. As for the entire time domain, the actual RS-1 transmission period is the sum of the first RS-1 sub-period and the second RS-2 sub-period. It's the same with the RS-2. For example, the time block position of the actual RS-2 transmission period may be determined using both the "RS-2 position in the second sub-period" and a second offset value, with the second offset value determined from the RS-1 period.

[00181] In terms of RIM-RS reception, assuming that the RS-1 periods of all network devices are the same, in other words, the first sub-periods are the same, and the RS-2 periods of all network devices are the same, in other words, the second sub-periods are the same, the second network the device may clearly know the times at which RS-1s are received and the times at which RS-2s are received and may not need additional indication information to distinguish.

[00182] In the above examples, a time domain sequence in which RS-1 is placed before RS-2 is used as an example. However, the sequence of RS-1 and RS-2 time domain resources is not limited in the present application.

[00183] Additional information of the second type:

[00184] In a remote interference measurement application scenario, the reference signal may be represented as RIM-RS. The RIM-RS may carry some information used for coordination between network devices, and this information is referred to as additional information of the second type. The second side information of the second type may be used to distinguish whether the network device sending the RIM-RS considers the interference cancellation used by the interfering base station to be sufficient.

[00185] In this embodiment of the present application, the second type of additional information may be indicated using sequence index information. If some sequences are used for all network devices, the network device that sends the RIM-RS considers that the interference cancellation used by the interfering base station is sufficient. If some other sequences are used, for all network devices, then the network device that sends the RIM-RS considers that the interference cancellation used by the interfering base station is insufficient.

[00186] Two potentially suitable ways of specifying the second type of additional information are described below, both of which are implemented using sequence index information.

[00187] Method a: The bit at the second predetermined position in the sequence index information is determined by the interference cancellation state indication information. The interference cancellation state indication information is used to determine whether the interference cancellation used by the network device that sends the RIM-RS is sufficient.

[00188] The interference cancellation state indication information may be configured by a higher layer node or OAM. For example, the higher layer node or OAM may configure the identification information distinguishing identification information portion of the interference cancellation state for the network device to indicate whether there is interference cancellation state indication information. The first network device may determine the value of the interference cancellation state indication information based on the interference state of the first network device. Considering that the interference cancellation state indication information indicates two states, the interference cancellation state indication information may occupy one bit, and whether the network device that sends the RIM-RS considers that the interference cancellation used by the interfering base station is sufficient. , differs based on different bit values.

[00189] For the interfering base station, two states of interference cancellation state indication information can be used to indicate that the interfering base station, which receives the reference signal, should perform an additional interference cancellation policy, or that the interfering base station , which receives the reference signal, no further interference cancellation policy is required.

[00190] The second predetermined position may be the most significant or least significant bit in the sequence index information, or any predetermined position. Based on the examples in FIG. 14, as shown in FIG. 18, the most significant bit in the sequence index information is determined by the interference cancellation state indication information and represented as E/N. For example, the interference cancellation state indication information occupies one bit, and the network device determines whether the value of one bit is 1 or 0 based on the interference state. that the interference suppression of the interfering base station is insufficient, the value of the bit is 0 (or 1). When the network device that sends the reference signal considers that the interference cancellation of the interfering base station is sufficient, the value of the bit is 1 (or 0).

[00191] In method a, the duration of the identification information is less than the duration of the resource index information. The first network device determines the bit value at the second predetermined position in the sequence index information based on the current interference state, then determines the entire resource index information based on the identification information and the bit value at the second predetermined position, or determines the index information of the three areas, and then determines the resource transmissions in each area based on the resource index information.

[00192] According to method a, the two states of interference cancellation may be distinguished by a code separation method. The interference cancellation state indication information is used to determine the sequence used by the RIM-RS. Because the bit has a different meaning when the interference cancellation state is different, the sequences used by the network device to send RIM-RS messages representing the interference cancellation states are different. In addition, the second network device at the receiving side can determine, based on the various sequences of the received RIM-RSs, the values of the interference cancellation states indicated by the received RIM-RSs, for example, whether the interference cancellation is sufficient.

[00193] Method b: Different states of interference cancellation are distinguished by two pieces of identification information.

[00194] The two pieces of identification information include a first identification information and a second identification information. The first identification information corresponds to the index information of the first sequence, and the second identification information corresponds to the index information of the second sequence. The first sequence index information and the second sequence index information may be two different ranges of all sequence index information.

[00195] The two pieces of identification information may also be configured by the higher level node or OAM. The first network device can determine, based on the current interference state, which part of the identification information is used to determine the transmission resource. The first sequence index information and the second sequence index information correspond to different interference cancellation states, respectively. For example, the first sequence index information is used to indicate that the network device that sends the reference signal considers that the interference cancellation used by the interfering base station is sufficient. The second sequence index information is used to indicate that the network device that sends the reference signal considers that the interference cancellation used by the interfering base station is insufficient.

[00196] Similar to the two cases in the above method 2, both the first sequence index information and the second sequence index information can be used to indicate the entire sequence resource, or the first sequence index information is used to indicate the sequence resource in the first range, and the second sequence index information is used to specify a sequence resource in the second range. The first network device may directly determine the two sequence resources based on the first sequence index information and the second sequence index information, or may determine the first sequence based on the first sequence index information and the third offset, and determine the second sequence based on the second sequence index information and the fourth offset. For a specific implementation of the method, refer to the description of the two cases in the above method 2. Details are not described here again. For example, the reference signal sequence 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 from the potentially suitable sequences based on the index information of the first sequence the first sequence corresponding to the index information of the first sequence, and determines from the potentially suitable sequences based on the index information of the second sequence the second sequence corresponding to the index information of the second sequence. Alternatively, with reference to the offset, the network device determines from the potentially suitable sequences based on the index information of the first sequence and the third offset, the first sequence corresponding to the index information of the first sequence, and/or determines from the potentially suitable sequences based on the index information of the second sequence and the fourth offsetting the second sequence corresponding to the index information of the second sequence.

[00197] Thus, the first identification information need only indicate the sequence in the sequence resource in the first range, and the sequence resource in the first range is usually less than the entire resource of sequences. Therefore, compared with the case where the first identification information needs to indicate a sequence in the entire sequence resource, a relatively small number of bits is required, and the signaling overhead can be reduced. The second identification information need only indicate the sequence in the sequence resource in the second range, and the sequence resource in the second range is typically less than the entire resource of sequences. Therefore, compared with the case in which the second identification information needs to indicate a sequence in the entire sequence resource, a relatively small number of bits is required, and the signaling overhead can be reduced.

[00198] In an exemplary implementation, the first type of additional information and the second type of additional information may be combined to indicate. For details on the method for specifying the first type additional information and the method for specifying the second type additional information, see the foregoing descriptions.

[00199] The network device can distinguish between different types using four pieces of identification information, including different types of reference signals and different states of interference cancellation.

[00200] For example, the four pieces of identification information include a first identification information, a second identification information, a third identification information, and a 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 and the second sequence index information, and the fourth identification information corresponds to second time domain index information; and second sequence index information.

[00201] As another example, a function indicating the second type side information should normally be sent by the interfering base station, in other words, RS-1 carries the second type side information but RS-2 does not carry the second type side information. In this case, the identification information includes the third identification information, and the sequence index information includes the first sequence index information and the 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 third identification information corresponds to the first time domain index information and the second sequence index information.

[00202] The network device may determine, based on the interference state of the network device, time blocks in which to send the RIM-RS, in particular, determine whether to send RS-1 or RS-2, and the network device may determine the sequence for sending RIM-RS, in particular, determine that RS-E and RS-N should be sent. RS-E indicates that the interference suppression is sufficient. RS-N indicates that interference suppression is insufficient or that the interference suppression policy does not need further improvement.

[00203] In an application scenario in which the first type side information and the second type side information are combined to indicate, the parameter information configured for the network device may include the following forms.

[00204] (1) One piece of identification information is configured for the network device, and when the RIM-RS time domain resource is determined, the time domain resource further needs to be determined based on the reference signal discrimination information bit at the start specified position. When the RS-1 and RS-2 code domain resources are determined, the code domain resources need to be further determined based on the interference cancellation state indication information bit at the second predetermined position, or when the RS-1 code domain resource is determined, the code domain resource is further to be determined. based on the information bit indicating the interference suppression state at the second predetermined position.

[00205] (2) Two pieces of identification information are configured for the network device, which correspond to RS-1 and RS-2, respectively. When the RS-1 and RS-2 code domain resources are determined, the code domain resources need to be further determined based on the interference cancellation state indication information bit at the second predetermined position, or when the RS-1 code domain resource is determined, the code domain resource is further to be determined. based on the information bit indicating the interference suppression state at the second predetermined position.

[00206] (3) Two pieces of identification information are configured for the network device, which correspond to RS-E and RS-N, respectively. When the RIM-RS resource in the time domain is determined, the RIM-RS resource in the time domain further needs to be determined based on the reference signal discrimination information bit at the first predetermined position. "RS-E" and "RS-N" may take effect at any time, or may only take effect at the time corresponding to RS-1.

[00207] (4) Four pieces of identification information are configured for the network device, corresponding to RS-1E, RS-1N, RS-2E, and RS-2N, respectively, and corresponding to the "interfering base station + sufficient" case, the "interfering base station + enough" case, base station + insufficient”, the interfering base station + sufficient case, and the interfering base station + insufficient case, respectively. Alternatively, three pieces of identification information are configured/notified for the base station, correspond to RS-1E, RS-1N, and RS-2 respectively, and correspond to the interfering base station + sufficient case, the interfering base station + insufficient case. ' and the case of 'interfering base station' (or 'interfering base station + enough'), respectively.

[00208] According to the first type side information, "discriminating between interfering base station and interfering base station" information may be further carried in the RIM-RS sending/receiving process, or information indicating that the reference signal is RS-1 may be carried. or RS-2. According to the second type side information, information indicating "whether or not the current interference cancellation is sufficient" may be further carried in the RIM-RS sending/receiving process. The first type side information and the second type side information help to realize more accurate interference coordination between base stations.

[00209] Based on the same concept as the above method embodiments, as shown in FIG. 19, an embodiment of the present application further provides a communication device 1900. The communication device 1900 is configured to perform operations performed by the first network device or the second network device in the above method embodiments. The communication device 1900 includes a processing unit 1901 and a communication unit 1902.

[00210] When the operations performed by the first network device in the above method embodiments are performed:

the processing unit 1901 is configured to determine a reference signal transmission resource based on the identification information and the parameter information, the transmission resource includes one or more of a sequence, a frequency domain resource, and a time domain resource of the reference signal, the identification information is used to identify a network device, the information parameters includes sequence indication information and frequency domain indication information, the sequence indication information is used to indicate one or more potentially suitable sequences, and the frequency domain indication information is used to indicate one or more potentially suitable frequency domain resources; And

the communication unit 1902 is configured to send a reference signal on the transmission resource.

[00211] Optionally, the processing unit 1901 is configured to:

determine from potentially suitable sequences the sequence of the reference signal corresponding to the identification information; and/or

determine, from the potentially suitable frequency domain resources, a frequency domain resource corresponding to the identification information; and/or

determine the time domain resource based on the identification information.

[00212] Optionally, the time domain resource includes one or more downlink to uplink switch periods.

[00213] The parameter information further includes one or more of the first indication information, the second indication information, or the third indication information.

[00214] The first indication information is used to indicate the number of retransmissions of the reference signal.

[00215] The second indication information is used to indicate the position of a symbol that carries the reference signal in the downlink to uplink switching period.

[00216] The third indication information is used to indicate a downlink-to-uplink handoff period which is used to carry the reference signal and which is in the first downlink-to-uplink handoff period and the second downlink-to-uplink handoff period. uplink, wherein the first downlink-to-uplink switching period and the second downlink-to-uplink switching period are contiguous in the time domain, and the first downlink-to-uplink switching period and the second switching period from downlink to uplink have different patterns.

[00217] Optionally, the processing unit 1901 is configured to:

determine sequence index information corresponding to the identification information, and determine, from potentially suitable sequences, a reference signal sequence corresponding to the sequence index information.

[00218] Optionally, the processing unit 1901 is configured to:

determine the frequency domain index information corresponding to the identification information, and determine, from potentially suitable frequency domain resources, a frequency domain resource corresponding to the frequency domain index information.

[00219] Optionally, the processing unit 1901 is configured to:

determine time domain index information corresponding to the identification information; And

determine the time domain resource that corresponds to the time domain index information in the period indicated by the period indication information, the period indication information being used to indicate the sending period of the reference signal.

[00220] Optionally, the processing unit 1901 is configured to:

determine a reference signal period based on the identification information, sequence indication information, and frequency domain indication information;

determine time domain index information corresponding to the identification information; And

determine a time domain resource that corresponds to the time domain index information in said period.

[00221] Optionally, the bit at the first given position in the time domain index information is determined by the reference signal discrimination information.

[00222] Optionally, the identification information includes a first identification information and a second identification information. The time domain index information includes first time domain index information and second time domain index 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.

[00223] Optionally, the time domain resource includes a first time domain resource and a second time domain resource.

[00224] The processing unit 1901 is configured to:

determining a first time domain resource in said period based on the first time domain index information and/or determining a second time domain resource in said period based on the second time domain index information.

[00225] Optionally, the time domain resource includes a first time domain resource and a second time domain resource.

[00226] The processing unit 1901 is configured to:

determining a first time domain resource in said period based on the information of the first time domain index and the first offset, and/or determining a second time domain resource in said period based on the information of the second time domain index and the second offset.

[00227] Optionally, the bit at the second predetermined position in the sequence index information is determined by the interference cancellation state indication information.

[00228] Optionally, the identification information includes a first identification information and a second identification information. The sequence index information includes first sequence index information and second sequence index information. The first identification information corresponds to the index information of the first sequence, and the second identification information corresponds to the index information of the second sequence.

[00229] Optionally, the identification information includes third identification information and fourth identification information, and the sequence index information includes first sequence index information and 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 first sequence index information;

the third identification information corresponds to the first 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.

[00230] Alternatively, the identification information includes third identification information, and 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.

[00231] Optionally, the sequence includes a first sequence and a second sequence.

[00232] The processing unit 1901 is configured to:

determine from potentially suitable sequences based on the index information of the first sequence a first sequence corresponding to the index information of the first sequence, and/or determine from potentially suitable sequences based on the index information of the second sequence a second sequence corresponding to the index information of the second sequence.

[00233] Optionally, the sequence includes a first sequence and a second sequence.

[00234] The processing unit 1901 is configured to:

determine from the potentially suitable sequences based on the first sequence index information and the third offset the first sequence corresponding to the first sequence index information, and/or determine from the potentially suitable sequences based on the second sequence index information and the fourth offset, the second sequence corresponds to the second sequence index information.

[00235] When operations performed by the second network device in the above method embodiments are performed:

the processing unit 1901 is configured to determine the reception resource based on the 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 potentially suitable sequences, and the frequency domain indication information is used to indicate one or more potentially suitable frequency domain resources; And

the communication unit 1902 is configured to receive the reference signal on the receive resource.

[00236] Optionally, the processing unit 1901 is further configured to:

determine a reference signal transmission resource, the transmission resource including one or more of a sequence, a frequency domain resource, and a time domain resource that correspond to the reference signal; And

determine identification information of the reference signal based on the transmission resource of the reference signal, wherein the identification information is used to identify a network device that sends the reference signal.

[00237] Optionally, the processing unit 1901 is configured to:

determine sequence index information based on the reference signal sequence, determine frequency domain index information based on the frequency domain resource of the reference signal, and/or determine time domain index information based on the time domain resource of the reference signal; And

determine the identification information based on one or more of the sequence index information, the frequency domain index information, and the time domain index information.

[00238] Based on the same concept as the above method embodiments, as shown in FIG. 20, an embodiment of the present application further provides a communication device 2000. The communication device 2000 is configured to implement the operations performed by the first network device and/or the second network device in the above method embodiments.

[00239] The communication device 2000 includes a transceiver 2001, a processor 2002, and a memory 2003. The memory 2003 is optional. The transceiver 2001 is configured to perform message transmission or signaling with another communication device, for example, to receive an RRC message from a source cell. The processor 2002 is connected to the memory 2003 and is configured to call the program in the memory 2003. When the program is executed, the processor 2002 is allowed to perform the operations performed by the first network device or the second network device in the above method embodiments. The memory 2003 is configured to store a program executed by the processor 2002. The function module processing unit 1901 in FIG. 19 may be implemented using the processor 2002, and the communication unit 1902 may be implemented using the transceiver 2001.

[00240] When, for example, the functions of the first network device are executed, the processor 2002 performs the following operation: determining a reference signal transmission resource based on the identification information and parameter information, the transmission resource including one or more of a sequence, a frequency domain resource, and a time resource. area of the reference signal, the identification information is used to identify the network device, the parameter information includes sequence designation information and frequency domain designation information, the sequence designation information is used to designate one or more potentially suitable sequences, and the frequency domain designation information is used to designate one or more potentially suitable frequency domain resources.

[00241] When the functions of the first network device are executed, for example, the processor 2002 performs the following operation: determining a reception resource based on the parameter information, the parameter information including sequence indication information and frequency domain indication information, the sequence indication information is used to indicate one or more potentially suitable sequences, and the frequency domain indication information is used to indicate one or more potentially suitable frequency domain resources.

[00242] The processor 2002 may further perform another operation or function performed by the first network device or the second network device in the above method embodiments, and the details are not repeated.

[00243] The processor 2002 may be a central processing unit (CPU), a network processor (network processor, NP), or a combination of CPU and NP.

[00244] Processor 2002 may further include a hardware chip. A hardware chip can be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination of the two. A PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination of these.

[00245] Memory 2003 may include volatile (short-term) memory (volatile memory), for example, memory with random access (random-access memory, RAM). Alternatively, memory 2003 may include non-volatile memory (non-volatile memory), such as flash memory (flash memory), hard disk drive (HDD) or solid-state drive (solid-state drive , SSD). Memory 2003 may further include a combination of the above types of memory.

[00246] Some or all of the operations and functions that are performed by the first network device and that are described in the above method embodiments of the present application, or some or all of the operations and functions that are performed by the second network device and that are described in the above method embodiments of the present application may be performed using a microcircuit or an integrated circuit.

[00247] In order to implement the functions of the communication device in Fig. 19 or Fig. 20, an embodiment of the present application further provides a chip including a processor and configured to support the communication device while realizing the functions of the first network device or the second network device in the above embodiments. way. In an exemplary embodiment, the chip is connected to the memory, or the chip includes the memory, and the memory is adapted to store program instructions and data that are needed for the communication device.

[00248] In one embodiment of the present application, a computer storage medium is provided in which a computer program is stored. The computer program includes instructions used to carry out the above method embodiments.

[00249] In one embodiment of the present application, a computer program product is provided that includes instructions. When the computer program product is executed on the computer, the above embodiments of the method can be executed by the computer.

[00250] One skilled in the art will understand that embodiments of the present application may be provided as a method, system, or computer program product. Therefore, the present application may take the form of hardware-only embodiments, software-only embodiments, or combination of software and hardware embodiments. Moreover, the present application may use the form of a computer program product that is implemented on one or more computer-usable media (including, but not limited to, disk memory, CD-ROM, optical memory, and the like) that include a computer program code.

[00251] The present application has been described with reference to flow charts and/or flowcharts of a method, apparatus (system), and computer program product in accordance with embodiments of the present application. It should be understood that computer program instructions may be used to implement each process and/or each block in the flowcharts and/or flowcharts, and the combination of the process and/or block in the flowcharts and/or flowcharts. . These computer program instructions may be provided to a mainframe computer, a dedicated computer, an embedded processor, or the processor of any other programmable data processing device to create a machine, such that the instructions executed by the computer or the processor of any other programmable data processing device generate a device to implement a specific function in one or more processes in the flowcharts and/or in one or more blocks in the flowcharts.

[00252] These computer program instructions may be stored in computer readable memory, which may cause the computer or any other programmable processing device to function in a particular way such that the instructions stored in computer readable memory generate an artifact that includes the device being instructed. The device being trained implements a particular function in one or more processes in the flowcharts and/or in one or more blocks in the flowcharts.

[00253] These computer program instructions can be downloaded to a computer or other programmable processing device such that a series of operations and steps are performed on the computer or other programmable device, thereby generating computer-implementable processing. Therefore, instructions executable on a computer or other programmable device provide steps for implementing a particular function in one or more processes in flowcharts and/or in one or more blocks in flowcharts.

[00254] Although some preferred embodiments of the present application have been described, changes and modifications to these embodiments may be made by those skilled in the art after studying the basic concept of the invention. Therefore, the following claims are intended to be construed as covering the preferred embodiments and all changes and modifications falling within the scope of this application.

[00255] Obviously, various modifications and changes can be made by those skilled in the art to the embodiments of the present application without going beyond the spirit and scope of the embodiments of the present application. The present application is intended to cover these modifications and variations provided that they fall within the scope of protection defined by the following claims and their equivalent technologies.

Claims (83)

1. A communication method, comprising the steps of: determining time domain index information corresponding to the identification information, the identification information being used to identify the network device; determining the time domain resource of the reference signal, which corresponds to the time domain index information, in the period, the period being determined based on the identification information, the sequence indication information, and the frequency domain indication information, the sequence indication information indicating one or more potentially suitable sequences, and the information indicating a frequency domain indicates one or more potentially suitable frequency domain resources; And sending a reference signal on a transmission resource, the transmission resource comprising a sequence, a frequency domain resource, and a time domain resource of the reference signal. 2. The method of claim 1, further comprising the steps of: determining from potentially suitable sequences a reference signal sequence corresponding to the identification information; and/or determining from the potentially suitable frequency domain resources a frequency domain resource corresponding to the identification information. 3. The method according to claim 1 or 2, wherein the time domain resource is in one or more downlink to uplink switching periods; the time domain resource of the reference signal is further determined based on one or more of the first indication information, the second indication information, or the third indication information; the first indication information indicates the number of retransmissions of the reference signal; the second indication information indicates the position of a symbol that carries the reference signal in the downlink to uplink switching period; And the third indication information indicates a downlink-to-uplink switching period which is used to carry the reference signal and which is in the first downlink-to-uplink switching period and the second downlink-to-uplink switching period. 4. The method of claim 2, wherein said determination, from potentially suitable sequences, of a reference signal sequence corresponding to the identification information comprises: determining sequence index information corresponding to the identification information, and determining from the potentially suitable sequences a reference signal sequence corresponding to the sequence index information. 5. The method of claim 2 or 4, wherein said determining, from potentially suitable frequency domain resources, a frequency domain resource corresponding to the identification information comprises: determining frequency domain index information corresponding to the identification information, and determining, from the potentially eligible frequency domain resources, a frequency domain resource corresponding to the frequency domain index information. 6. The method according to any one of paragraphs. 1-5, in which the identification information contains the first identification information and the second identification information; the time domain index information contains first time domain index information and second time domain index information; and 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; wherein the first time domain index information and the second time domain index information are used to distinguish between different types of reference signals. 7. The method of claim 6, wherein the time domain resource comprises a first time domain resource and a second time domain resource, and said determining a time domain resource of the reference signal that corresponds to time domain index information in said period comprises: determining the first time domain resource in the first sub-period of said period based on the information of the first time domain index and the first offset, and/or determining a second time domain resource in the second sub-period of said period based on information of the second time domain index and the second offset, wherein said period consists of a first sub-period and a second sub-period, wherein the first offset is determined by the second sub-period and the second offset is determined by the first sub-period. 8. The method according to any one of paragraphs. 4-7, in which the value of the most significant bit in the sequence index information is determined by the interference cancellation state indication information. 9. A communication method, comprising the steps of: determining a reception resource based on the parameter information, wherein the parameter information comprises sequence indication information and frequency domain indication information, the sequence indication information indicates one or more potentially suitable sequences, and the frequency domain indication information indicates one or more potentially suitable frequency domain resources; receiving a reference signal at the receiving resource; determining a reference signal time domain resource in a period, the period associated with identification information, sequence indication information, and frequency domain indication information, the identification information being used to identify a network device that sends the reference signal; determining time domain index information corresponding to the time domain resource of the reference signal; And determining the identification information based on the time domain index information. 10. The method according to claim 9, in which the time domain resource comprises a first time domain resource and a second time domain resource; the identification information comprises a first identification information and a second identification information; the time domain index information contains first time domain index information and second time domain index information; the first time domain index information corresponds to the first identification information, and the second time domain index information corresponds to the second identification information; wherein the first time domain index information and the second time domain index information are used to distinguish between different types of reference signals. 11. The method according to claim 9 or 10, while the method further comprises determining one or more of a frequency domain sequence and resource that correspond to the reference signal; And in said determining the identification information based on the time domain index information, determining the identification information of the reference signal based on the time domain index information and one or more of the frequency domain sequence and resource that correspond to the reference signal. 12. The method of claim 11, wherein said determining the identification information based on the time domain index information and one or more of the frequency domain sequence and resource that correspond to the reference signal comprises: determining sequence index information based on the reference signal sequence and/or determining frequency domain index information based on the frequency domain resource of the reference signal; And determining the identification information based on the time domain index information and one or more of the sequence index information and the frequency domain index information. 13. A communication device containing a transceiver and a processor, in which the processor is configured to connect to the memory and call a program in the memory to perform the following operations: determining time domain index information corresponding to the identification information, the identification information being used to identify the network device; determining the time domain resource of the reference signal, which corresponds to the time domain index information, in the period, the period being determined based on the identification information, the sequence indication information, and the frequency domain indication information, the sequence indication information indicating one or more potentially suitable sequences, and the information indicating a frequency domain indicates one or more potentially suitable frequency domain resources; And the transceiver is configured to send the reference signal on the transmission resource, the transmission resource comprising a sequence, a frequency domain resource, and a time domain resource of the reference signal. 14. The apparatus of claim 13, wherein the processor is further configured to: determine from potentially suitable sequences the sequence of the reference signal corresponding to the identification information; and/or determine from the potentially suitable frequency domain resources a frequency domain resource corresponding to the identification information. 15. The apparatus of claim 13 or 14, wherein the time domain resource is in one or more downlink to uplink switching periods; the time domain resource of the reference signal is further determined based on one or more of the first indication information, the second indication information, or the third indication information; the first indication information indicates the number of retransmissions of the reference signal; the second indication information indicates the position of a symbol that carries the reference signal in the downlink to uplink switching period; And the third indication information is used to indicate the downlink-to-uplink handover period which is used to carry the reference signal and which is in the first downlink-to-uplink handoff period and the second downlink-to-uplink handoff period . 16. The apparatus of claim 14, wherein the processor is configured to: determine sequence index information corresponding to the identification information, and determine from potentially suitable sequences a reference signal sequence corresponding to the sequence index information. 17. The device according to claim 14 or 16, in which the processor is configured to: determine frequency domain index information corresponding to the identification information, and determine, from the potentially suitable frequency domain resources, a frequency domain resource corresponding to the frequency domain index information. 18. The device according to any one of paragraphs. 13-17, wherein the identification information comprises a first identification information and a second identification information; the time domain index information contains first time domain index information and second time domain index information; and 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; wherein the first time domain index information and the second time domain index information are used to distinguish between different types of reference signals. 19. The apparatus of claim 18, wherein the time domain resource comprises a first time domain resource and a second time domain resource; and the processor is configured to: determine the first time domain resource in the first sub-period of said period based on the information of the first time domain index and the first offset, and/or determine the second time domain resource in the second sub-period of said period based on the information of the second time domain index and the second offset, wherein said period consists of a first sub-period and a second sub-period, wherein the first offset is determined by the second sub-period and the second offset is determined by the first sub-period. 20. The device according to any one of paragraphs. 16-19, wherein the value of the most significant bit in the sequence index information is determined by the interference cancellation state indication information. 21. A communication device containing a transceiver and a processor, while the processor is configured to connect to the memory and call a program in the memory to perform the following operation: determining a receive resource based on the parameter information, wherein the parameter information contains sequence indication information and frequency domain indication information, the sequence indication information indicates one or more potentially suitable sequences, and the frequency domain indication information indicates one or more potentially suitable frequency domain resources; And the transceiver is configured to receive the reference signal on the receive resource, wherein the processor is configured to perform the following operations: determining a time domain resource of a reference signal in a period, the period being associated with identification information, sequence indication information, and frequency domain indication information, the identification information being used to identify a network device that sends the reference signal; determining time domain index information corresponding to the time domain resource of the reference signal; And determining the identification information based on the time domain index information. 22. The apparatus of claim 21, wherein the time domain resource comprises a first time domain resource and a second time domain resource; the identification information comprises a first identification information and a second identification information; the time domain index information contains first time domain index information and second time domain index information; and the first time domain index information corresponds to the first identification information, and the second time domain index information corresponds to the second identification information; wherein the first time domain index information and the second time domain index information are used to distinguish between different types of reference signals. 23. The apparatus of claim 21 or 22, wherein the processor is further configured to: determine one or more of the frequency domain sequence and resource that correspond to the reference signal; And determine identification information of the reference signal based on the time domain index information and one or more of the frequency domain sequence and resource that correspond to the reference signal. 24. The apparatus of claim 23, wherein the processor is configured to: determine sequence index information based on the reference signal sequence and/or determine frequency domain index information based on the frequency domain resource of the reference signal; And determine the identification information based on the time domain index information and one or more of the sequence index information and the frequency domain index information. 25. A computer-readable storage medium containing instructions that, when executed by a computer, instruct the computer to perform the method according to any one of paragraphs. 1-12. 26. A microcircuit for communication, wherein the microcircuit is connected to the memory or the microcircuit contains the memory and is configured to read and execute instructions stored in the memory, to implement the method according to any one of paragraphs. 1-12.

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