A signaling indication method and apparatus for interference cancellation in wireless devices.

Abstract

This application discloses a signaling indication method for interference cancellation in wireless devices, used in wireless communication scenarios where a wireless intermediate device assists a network device. The method includes a first network device, a second network device, and an intermediate device. The method comprises the following steps: the first network device receives a first signaling from the second network device, the first signaling indicating switching information of the intermediate device; the first network device uses the switching information to schedule terminal devices to transmit during a time period when the intermediate device is off. This application also includes apparatus for implementing the method. This method addresses the problem of interference caused to terminal device communication by an intermediate device assisting a network device when it is operating, and is particularly applicable to network edge user scenarios in macro base station and microcell structures.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a signaling indication method and apparatus for interference cancellation in wireless devices. Background Technology

[0002] Intelligent metasurfaces (RIS) are controlled by the base station to manage parameters such as the phase of the metasurface, thereby better controlling diffuse reflection of incident signals and achieving controllable propagation of electromagnetic waves in the communication channel. Similarly, intelligent repeaters are controlled by the base station to manage parameters such as beam direction and power, improving the coverage, capacity, and energy efficiency of the communication system. One application scenario is a cellless environment, where one intelligent metasurface assists one access point (AP), such as... Figure 1 As shown, APm serves user UE k through RIS t with L intelligent metasurface units. Considering that in this scenario, there is also interference similar to that between macro cells and micro cells.

[0003] If both macro base stations and micro cells are equipped with RIS (Radio Interference System), with one RIS assisting one base station, for edge users whose interference from the macro base station to the micro base station is caused by the RIS deployed on the macro base station, these edge users can be scheduled during the RIS shutdown period. This is because the interference from the macro cell is greatly reduced when the RIS is off. Summary of the Invention

[0004] This application proposes a signaling indication method and apparatus for wireless device interference cancellation, which solves the problem of interference to the communication of terminal devices under another network device when an intermediate device assists the network device in operation. It is particularly suitable for network edge user scenarios in macro base station and micro cell structures.

[0005] In a first aspect, this application proposes a signaling indication method for interference cancellation in wireless devices, used in wireless communication scenarios where a wireless intermediate device assists a network device, comprising a first network device, a second network device, and an intermediate device, and including the following steps:

[0006] The first network device receives a first signaling from the second network device, the first signaling indicating the switching information of the intermediate device;

[0007] The first network device uses the switch information to schedule the terminal device to transmit during the time period when the intermediate device is off.

[0008] Preferably, the method further includes the following steps: the first network device uses the switch information to configure the terminal device to perform RRM / RLM measurements.

[0009] Preferably, the method further includes the following steps: the first network device uses the switch information to configure the terminal device to perform CQI measurement on the subframes of the intermediate device.

[0010] Preferably, the first signaling includes a first bitmap; the first bitmap is used to indicate the switching information of each subframe of the intermediate device; the first bitmap is used to schedule the terminal device.

[0011] More preferably, the first signaling includes a second bitmap; the shutdown subframes represented in the second bitmap are a subset of the shutdown subframes in the first bitmap; the second bitmap is used to configure the terminal device to perform RRM / RLM measurements.

[0012] More preferably, the terminal device belongs to a first terminal set; any terminal device in the first terminal set obtains a first measurement information and a second measurement information with a difference greater than a set threshold value; the first measurement information is the measurement information of any terminal when the intermediate device is turned on; the second measurement information is the measurement information of any terminal when the intermediate device is turned off.

[0013] More preferably, the measurement information includes at least one of the following: signal power RSRP, signal quality RSRQ, and signal-to-noise ratio SINR.

[0014] More preferably, the first signaling is periodic.

[0015] Secondly, this application also proposes a network device (first network device) for implementing the method described in any embodiment of the first aspect of this application. At least one module in the network device is configured to perform at least one of the following functions: receiving the first signaling; scheduling the terminal device; and configuring the intermediate device to perform measurement.

[0016] Thirdly, this application also proposes a network device (second network device) for implementing the method described in any embodiment of the first aspect of this application. At least one module in the network device is configured to perform at least one of the following functions: sending a first signaling, the first signaling including a first bitmap and / or a second bitmap; the first bitmap indicating switching information for each subframe of an intermediate device; and the closed subframes represented in the second bitmap being a subset of the closed subframes in the first bitmap.

[0017] Fourthly, this application also proposes a terminal device for implementing the method described in any embodiment of the first aspect of this application. At least one module in the terminal device is configured to perform at least one of the following functions: receiving the switch information; and transmitting the information during the time period when the intermediate device is off, based on the switch information.

[0018] Furthermore, at least one module in the terminal device is also configured to perform at least one of the following functions: measuring according to the switch information to obtain first measurement information and second measurement information; the first measurement information is the measurement information of any terminal when the intermediate device is turned on; the second measurement information is the measurement information of any terminal when the intermediate device is turned off.

[0019] Preferably, the switch information is a first bitmap; the first bitmap is used to indicate the switch information of each subframe of the intermediate device.

[0020] Preferably, when measuring, the switch information is a second bitmap; the closed subframes represented in the second bitmap are a subset of the closed subframes in the first bitmap.

[0021] Fifthly, this application provides a communication device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method as described in any embodiment of the first aspect of this application.

[0022] In a sixth aspect, this application provides a computer-readable medium on which a computer program is stored, which, when executed by a processor, implements the steps of the method described in any embodiment of the first aspect of this application.

[0023] In a seventh aspect, this application proposes a mobile communication system comprising at least one network device as described in any embodiment of the second aspect of this application, at least one network device as described in any embodiment of the third aspect of this application, and at least one terminal device as described in any embodiment of the fourth aspect of this application.

[0024] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0025] This invention patent proposes a method for eliminating neighboring cell interference in homogeneous and heterogeneous networks, applicable to communication systems where interfering cells deploy relay nodes such as smart metasurfaces or smart repeaters to assist base station communication. Through signaling between base stations, the interfering base station indicates the on / off status of the wireless relay nodes it controls to the interfered base station. This is used for both radio resource management measurements and for the interfered base station to schedule edge users to a state where the wireless relay nodes are off. To better schedule edge users, users measure two sets of quantities and report them to the base station for use by the interfering base station in scheduling. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0027] Figure 1 A schematic diagram of a wireless system for intelligent metasurface-assisted transmission;

[0028] Figure 2 This is a schematic diagram of interference in macro-micro heterogeneous networks;

[0029] Figure 3 This is a flowchart illustrating an embodiment of the method of this application;

[0030] Figure 4 A schematic diagram of a bitmap representation method for the switching state of intermediate devices;

[0031] Figure 5 A schematic diagram illustrating an embodiment of the relationship between the first bitmap and the second bitmap;

[0032] Figure 6 This is a schematic diagram of a network device implementation example;

[0033] Figure 7 This is a schematic diagram of an embodiment of the terminal device;

[0034] Figure 8 This is a schematic diagram of the structure of a network device according to another embodiment of the present invention;

[0035] Figure 9 This is a block diagram of a terminal device according to another embodiment of the present invention. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0038] This application proposes an interference cancellation indication and measurement method for wireless intermediate devices, which is used in wireless communication scenarios where wireless intermediate devices assist network devices.

[0039] Figure 2 This is a schematic diagram of interference in macro-micro heterogeneous networks.

[0040] Considering the communication of intermediate devices in conjunction with network equipment, some terminals (the first set of terminals) are located as edge users after measurement and reporting. The main source of interference is the reflection or transmission of signals by intermediate devices in neighboring cells. Therefore, a method based on the on / off state of intermediate devices is considered. The on / off state of intermediate devices in subframes (first bit map) is notified to neighboring network equipment in the form of a bit map. Scheduling these edge users (the first set of terminals) in the state where the intermediate devices of the macro base station are turned off helps to reduce interference.

[0041] To determine whether the interference is caused by an intermediate device, the switching mode of another intermediate device in the subframe (second bitmap) is introduced and notified to the adjacent base station and / or terminal in the form of a bitmap. The terminal performs measurements in the two states of the intermediate device being on and off, and obtains the first measurement value and the second measurement value respectively. If the absolute value of the measurement difference between the first measurement value and the second measurement value is greater than the threshold, the user is judged as a user of the intermediate device interference (first terminal set).

[0042] The first network device here can be a micro base station (pico), and the second network device can be a macro base station (macro). Alternatively, the first network device can be a macro base station (macro), and the second network device can be a femtocell (macro). The first network device can also refer to the base station on the interfered side in other heterogeneous and homogeneous networks, and the second network device can also refer to the base station on the interfering side in other heterogeneous and homogeneous networks.

[0043] For example, the first network device communicates with the assistance of a first intermediate device, and the second network device communicates with the assistance of a second intermediate device. The first and second intermediate devices can be intelligent metasurfaces that reflect / transmit, intelligent repeaters, or any intermediate nodes that perform power amplification or phase adjustment. It should be noted that, in order to resolve crosstalk between the intermediate device and the terminal devices under the other network device, the second intermediate device is simply referred to as the intermediate device in this application to simplify the functional description of the first and second network devices.

[0044] Taking the deployment of micro base stations and macro base stations as an example, as shown in the figure, the first terminal set is located at the edge of the macro and micro cells, and the signal of the macro cell mainly comes from the amplification and forwarding or power phase adjustment signal of the intermediate equipment. Through the air interface between the macro base station and the micro base station, the micro base station receives the first control signaling, indicating the switching pattern of the intermediate equipment of the auxiliary macro base station configured in the first figure. The interface between the network devices here can be the X2 interface, the Xn interface, or any other interface between network devices.

[0045] Figure 3 This is a flowchart illustrating an embodiment of the method of this application.

[0046] This application proposes a signaling indication method for interference cancellation in wireless devices, used in wireless communication scenarios where a wireless intermediate device assists a network device. The method includes a first network device, a second network device, and an intermediate device, and comprises the following steps 101-104:

[0047] Step 101: The first network device receives a first signaling from the second network device, the first signaling indicating the switching information of the intermediate device.

[0048] Preferably, the first signaling includes a first bitmap; the first bitmap is used to indicate the switching information of each subframe of the intermediate device; the first bitmap is used to schedule the terminal device.

[0049] More preferably, the first signaling includes a second bitmap; the shutdown subframes represented in the second bitmap are a subset of the shutdown subframes in the first bitmap; the second bitmap is used to configure the terminal device to perform RRM / RLM measurements.

[0050] In this application, the intermediate device is turned on and off under the control of the second network device. Preferably, the time granularity of turning on and off is at the 1ms level.

[0051] More preferably, the first signaling is periodic.

[0052] Both the first and second bitmaps are sent periodically, and the period varies depending on the TDD / FDD standard and the TDD frame structure.

[0053] Preferably, the period is a pre-defined period, such as defining a table where a transmission period corresponds to different TDD frame structures under the FDD standard. The first network device selects the corresponding transmission period according to the operating standard and frame structure, and sends the first signaling, including a first bitmap and / or a second bitmap.

[0054] Table 1

[0055]

[0056] Step 102: The first network device configures the terminal device and performs measurements based on the switch information.

[0057] Preferably, the method further includes the following steps: the first network device uses the switch information to configure the terminal device to perform RRM / RLM measurements.

[0058] Preferably, the method further includes the following steps: the first network device uses the switch information to configure the terminal device to perform CQI measurement on the subframes of the intermediate device; more preferably, the measurement information further includes at least one of the following: signal power RSRP, signal quality RSRQ, and signal-to-noise ratio SINR.

[0059] For example, the first network device receives the first bit map, which is used to configure the corresponding CQI measurement for the first terminal set, wherein the CQI measurement is to measure the subframe.

[0060] For example, the first network device receives a second bitmap for configuring the terminal with corresponding RLM / RRM measurements, wherein the measurements are the average values ​​of long-term measurement results.

[0061] Step 103: Determine the first terminal set, which includes terminals whose absolute difference between the first measurement information and the second measurement information is greater than a set threshold value.

[0062] The difference between the first measurement information and the second measurement information obtained by any terminal device in the first terminal set is greater than a set threshold value; the first measurement information is the measurement information of any terminal when the intermediate device is turned on; the second measurement information is the measurement information of any terminal when the intermediate device is turned off.

[0063] For example, the first measurement information is the measurement value under the open subframe indicated by the second bitmap, and the second measurement information is the measurement value under the closed subframe indicated by the second bitmap.

[0064] Therefore, the first terminal set is defined as the set of edge terminals that access the first network device and cause significant interference when the intermediate device is enabled. The first measurement value for a terminal is defined as the measurement value on the subframe where the intermediate device is enabled, and the second measurement value is defined as the measurement value on the subframe where the intermediate device is disabled. When the absolute value of the first measurement value minus the second measurement value exceeds a certain threshold, it indicates that the interference of the terminal mainly originates from the forwarding and signal adjustment of the intermediate device, and it is necessary to schedule the terminal on the subframe where the intermediate device is disabled. Considering the subframe pattern indicated by the second bitmap for measurement, both the first and second measurement information are based on the switching subframes of the intermediate device indicated by the second bitmap.

[0065] Step 104: The first network device uses the switch information to schedule the terminal device to transmit during the time period when the intermediate device is off.

[0066] Preferably, the terminal device belongs to the first terminal set.

[0067] Preferably, the first signaling, through the interface of the first network device and the second network device, indicates the switching pattern of the intermediate device configured by the first network device in the first bit diagram. The first bit diagram indicates the switching status of the intermediate device in each subframe, which is used for the scheduling of the terminals of the first network device. The first network device schedules the first terminal set during the time period when the intermediate device is off.

[0068] Figure 4 A schematic diagram of a bitmap representation method for the switching state of intermediate devices.

[0069] The first diagram indicates as follows Figure 4 As shown, the time granularity of the switch closure indication here is 1ms. Taking a 10ms frame structure as an example, in subframe 3 / 6, the second intermediate device is in a closed state. Terminals of the first terminal set located at the edge under the micro base station (first network device) are all scheduled on the micro subframe corresponding to the closed state of the second intermediate device. Through this time-division multiplexing method, interference from the macro base station to edge users of the pico base station is avoided. The macro base station notifies the micro base station of the switch pattern of the configured intermediate device through the X2 interface between the macro base station and the micro base station using the first bit diagram.

[0070] Figure 5 A schematic diagram illustrating an example of the relationship between the first bitmap and the second bitmap.

[0071] Considering that CQI measurement is real-time, the pattern indicated by the first plot adjusts quickly. RLM / RRM only needs to meet the measurement requirements defined in RAN4; therefore, it is not necessary to use all the closed subframes defined in the first plot, but only a relatively stable subset. For example... Figure 5 As shown, the first bitmap indicates a relatively large number of patterns for closed subframes, while the second bitmap indicates a relatively small number of patterns for closed subframes.

[0072] Taking a macro-micro base station as an example, the micro base station (first network device) obtains the switching pattern of the intermediate device indicated by the first bit diagram from the X2 interface. Based on this first bit diagram, it configures and schedules the corresponding CQI measurement for the first terminal set. The CQI measurement measures the reference signal of a certain frame without averaging.

[0073] Taking a macro / micro base station as an example, the micro base station (first network device) obtains the switch pattern of the second intermediate device indicated by the second bitmap from the X2 interface, and configures the corresponding RLM / RRM measurement for the first terminal set based on this second bitmap, and averages the measurement results over a longer period of time.

[0074] Figure 6 This is a schematic diagram of a network device implementation.

[0075] This application also proposes a network device for implementing the method of any embodiment of this application.

[0076] At least one module in the first network device is configured to perform at least one of the following functions: receiving the first signaling; scheduling the terminal device; and configuring the intermediate device to perform measurement.

[0077] At least one module in the second network device is configured to perform at least one of the following functions: sending a first signaling message, the first signaling message including a first bitmap and / or a second bitmap; the first bitmap being used to indicate switching information for each subframe of the intermediate device; and the closed subframes represented in the second bitmap being a subset of the closed subframes in the first bitmap.

[0078] To implement the above technical solution, this application proposes a network device 400, which includes a network transmitting module 401, a network determining module 402, and a network receiving module 403.

[0079] When used as the primary network device

[0080] The network transmission module is configured to schedule terminal devices according to the information in the first bitmap, schedule the first set of terminals on the subframe where the intermediate device is closed; configure the terminal devices to perform CQI measurement according to the first bitmap and the indicated frame pattern; and / or configure the terminal devices to perform RLM / RRM measurement according to the second bitmap and the indicated frame pattern.

[0081] The network determination module is used to determine the first set of terminal devices by comparing the difference between the first measurement information and the second measurement information with a set threshold.

[0082] The network receiving module is used to receive a first control signaling, obtain a first bitmap and a second bitmap; obtain the measurement quantity reported by the terminal on the intermediate device opening subframe, and define it as the first measurement information; obtain the measurement quantity reported by the terminal on the intermediate device closing subframe, and define it as the second measurement information.

[0083] When used as a second network device

[0084] The network transmission module is used to send a first signaling, including a first bitmap and / or a second bitmap. It should be noted that, depending on the load, the first bitmap and the second control bitmap are sent to the first network device via the inter-base station interface. The first bitmap is used by the first network device to configure CQI measurement and scheduling, and the second bitmap is used by the first network device to configure RRM measurement. The switching state of intermediate nodes is controlled according to the first bitmap and the second bitmap.

[0085] The network determination module is used to determine the on / off state of the subframes of the intermediate device.

[0086] The specific methods for implementing the functions of the network sending module, network determining module, and network receiving module are as described in the various method embodiments of this application, and will not be repeated here.

[0087] Figure 7 This is a schematic diagram of an embodiment of the terminal device.

[0088] This application also proposes a terminal device, using the method of any embodiment of this application, wherein at least one module of the terminal device is configured to perform at least one of the following functions: receiving the switch information; and transmitting the information during the time period when the intermediate device is off, based on the switch information.

[0089] Furthermore, at least one module in the terminal device is also configured to perform at least one of the following functions: measuring according to the switch information to obtain first measurement information and second measurement information; the first measurement information is the measurement information of any terminal when the intermediate device is turned on; the second measurement information is the measurement information of any terminal when the intermediate device is turned off.

[0090] Preferably, the switch information is a first bitmap; the first bitmap is used to indicate the switch information of each subframe of the intermediate device.

[0091] Preferably, when measuring, the switch information is a second bitmap; the closed subframes represented in the second bitmap are a subset of the closed subframes in the first bitmap.

[0092] To implement the above technical solution, this application proposes a terminal device 500, which includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503.

[0093] The terminal receiving module is used to receive intermediate device switch information (including the first bitmap and the second bitmap), scheduling information, and measurement instructions from the first network device.

[0094] The terminal determination module is used to determine the measurement method and measurement time based on the first bitmap and the second bitmap.

[0095] The terminal transmitting module is used to transmit first measurement information and second measurement information. For example, the terminal measures the CQI according to the base station configuration and reports the CQI to the first network device. Another example is that the terminal measures the RSRP and / or RSRQ and / or SINR when the intermediate device is enabled, according to the base station configuration. Yet another example is that the terminal measures the RSRP and / or RSRQ and / or SINR when the intermediate device is disabled, according to the base station configuration.

[0096] The specific methods for implementing the functions of the terminal sending module, the terminal determining module, and the terminal receiving module are as described in the various method embodiments of this application, and will not be repeated here.

[0097] The terminal device mentioned in this application may refer to a mobile terminal device.

[0098] Figure 8 A schematic diagram of a network device according to another embodiment of the present invention is shown. As shown, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. The wireless interface may consist of multiple components, including a transmitter and a receiver, providing a unit for communication with various other devices over a transmission medium. The wireless interface implements communication functions with the terminal device, processes wireless signals through receiving and transmitting devices, and the data carried by the signals is communicated with the memory or processor via an internal bus structure. The memory 603 contains a computer program that executes any embodiment of this application, and the computer program runs or modifies the processor 601. The memory, processor, and wireless interface circuit are connected via a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which will not be described in detail here.

[0099] Figure 9 This is a block diagram of a terminal device according to another embodiment of the present invention. The terminal device 700 includes at least one processor 701, a memory 702, a user interface 703, and at least one network interface 704. The various components in the terminal device 700 are coupled together via a bus system. The bus system is used to implement communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

[0100] User interface 703 may include a display, keyboard, or clicking device, such as a mouse, trackball, touchpad, or touchscreen.

[0101] The memory 702 stores executable modules or data structures. The memory may store an operating system and application programs. The operating system includes various system programs, such as a framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application programs include various applications, such as media players and browsers, used to implement various application functions.

[0102] In an embodiment of the present invention, the memory 702 contains a computer program that executes any embodiment of the present application, the computer program being run on or modified by the processor 701.

[0103] The memory 702 includes a computer-readable storage medium. The processor 701 reads the information in the memory 702 and, in conjunction with its hardware, completes the steps of the above-described method. Specifically, the computer-readable storage medium stores a computer program, which, when executed by the processor 701, implements the steps of the method embodiments described in any of the above embodiments.

[0104] The processor 701 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the method in this application can be completed by the integrated logic circuitry in the hardware of the processor 701 or by instructions in software form. The processor 701 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a readily available programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor.

[0105] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. In a typical configuration, the device of this application includes one or more processors (CPUs), an input / output user interface, a network interface, and memory.

[0106] Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0107] Therefore, this application also proposes a computer-readable medium storing a computer program that, when executed by a processor, implements the steps of the method described in any embodiment of this application. For example, the memory 603, 702 of the present invention may include non-permanent memory in the form of computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM.

[0108] based on Figures 6-9 In addition to the embodiments described herein, this application also proposes a mobile communication system comprising at least one embodiment of any terminal device described herein and / or at least one embodiment of any network device described herein.

[0109] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0110] It should also be noted that the terms "first" and "second" in this application are used to distinguish multiple objects with the same name, and have no other special meaning unless specifically stated otherwise.

[0111] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A signaling indication method for interference cancellation in wireless devices, used in wireless communication scenarios where a wireless intermediate device assists a network device, comprising a first network device, a second network device, and an intermediate device, characterized in that, Includes the following steps: The intermediate device is turned on and off according to the control of the second network device; The first network device receives a first signaling from the second network device, the first signaling indicating the switching information of the intermediate device; A first set of terminals is determined, wherein the absolute difference between the first measurement information and the second measurement information obtained by any terminal device in the first set of terminals is greater than a set threshold value; the first measurement information is the measurement information of any terminal when the intermediate device is turned on; the second measurement information is the measurement information of any terminal when the intermediate device is turned off. The first network device uses the switch information to schedule terminal devices belonging to the first terminal set to transmit during the time period when the intermediate device is off.

2. The method as described in claim 1, characterized in that, The first network device uses the switch information to configure the terminal device to perform RRM / RLM measurements.

3. The method as described in claim 1, characterized in that, The first network device uses the switch information to configure the terminal device to perform CQI measurement on the subframes of the intermediate device.

4. The method as described in claim 1, characterized in that, The first signaling includes a first bitmap; the first bitmap is used to indicate the switching information of each subframe of the intermediate device; the first bitmap is used to schedule the terminal device.

5. The method as described in claim 4, characterized in that, The first signaling includes a second bitmap; the shutdown subframes represented in the second bitmap are a subset of the shutdown subframes in the first bitmap; the second bitmap is used to configure the terminal device to perform RRM / RLM measurements.

6. The method as described in claim 1, characterized in that, The measurement information includes at least one of the following: signal power RSRP, signal quality RSRQ, and signal-to-noise ratio SINR.

7. The method as described in claim 1, characterized in that, The first signaling is periodic.

8. A network device for implementing the method according to any one of claims 1 to 7, characterized in that, At least one module in the network device is configured to perform at least one of the following functions: receiving the first signaling; scheduling the terminal device; and configuring the intermediate device to perform measurement.

9. A network device for implementing the method according to any one of claims 1 to 7, characterized in that, At least one module in the network device is configured to perform at least one of the following functions: sending a first signaling, the first signaling including a first bitmap and / or a second bitmap; the first bitmap being used to indicate the switching information of each subframe of the intermediate device; and the closed subframes represented in the second bitmap being a subset of the closed subframes in the first bitmap.

10. A terminal device for implementing the method according to any one of claims 1 to 7, characterized in that, At least one module in the terminal device is configured to perform at least one of the following functions: receiving the switch information; and transmitting the information during the time period when the intermediate device is off, based on the switch information.

11. The terminal device as described in claim 10, characterized in that, At least one module in the terminal device is further configured to perform at least one of the following functions: measuring according to the switch information to obtain first measurement information and second measurement information; the first measurement information is the measurement information of any terminal when the intermediate device is turned on; the second measurement information is the measurement information of any terminal when the intermediate device is turned off.

12. The terminal device as described in claim 10, characterized in that, The switch information is a first bitmap; the first bitmap is used to indicate the switch information of each subframe of the intermediate device.

13. The terminal device as described in claim 11, characterized in that, The switch information is a second bitmap; the closed subframes represented in the second bitmap are a subset of the closed subframes in the first bitmap; the first bitmap is used to indicate the switch information of each subframe of the intermediate device.

14. A communication device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method as described in any one of claims 1 to 7.

15. A computer-readable medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the method as described in any one of claims 1 to 7.

16. A mobile communication system comprising at least one network device as claimed in claim 8, at least one network device as claimed in claim 9, and at least one terminal device as claimed in any one of claims 10 to 13.

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