Information transmission method, base station, terminal, and communication system

Abstract

The present disclosure relates to the field of mobile communications and provides an information transmission method, a base station, a terminal, and a communication system. In the present disclosure, an NR terminal reports LTE neighboring cell CRS interference suppression capability information of the NR terminal to an NR base station, and the NR base station receives the LTE neighboring cell CRS interference suppression capability information reported by the NR terminal to help the base station make a decision accurately.

Description

[Technical field]

[0001] [CROSS REFERENCE TO RELATED APPLICATIONS] This application claims priority based on Chinese Patent Application No. 202110339566.7, filed on March 30, 2021, the disclosure of which is incorporated herein in its entirety.

[0002] The present invention relates to the field of mobile communications, and in particular to an information transmission method, a base station, a terminal, and a communication system. [Background technology]

[0003] 4G(4 th , 4th Generation) LTE (Long Term Evolution) and 5G (5 th In Dynamic Spectrum Sharing (DSS) technology between LTE and NR (5th Generation), the same frequency band (spectrum) is shared by LTE terminals and NR terminals, and resources are dynamically allocated by the network side to terminals for 4G or 5G transmission according to conditions such as network load.

[0004] In the case of a 4G LTE system of a neighboring cell operating in DSS mode, the downlink Cell Reference Signal (CRS) of that system, which is usually open and occupies fixed resources, also causes significant interference to the reception of NR terminals using 5G in this cell.

[0005] For an NR terminal supporting the capability for neighboring cell interference cancellation, when an LTE neighboring cell schedules downlink data transmission on the time-frequency resources of the channel quality measurement reference signal (i.e., CSI-RS (Channel State Information Reference Signal)) of the NR cell, the terminal can report channel quality information based on interference suppression to the NR base station through measurement, estimation, and equalization algorithms for the CSI-RS, including suppression of neighboring cell interference including CRS interference. The scheduling of the NR base station based on the channel quality information at this time is consistent with the actual transmission quality.

[0006] However, when an LTE neighboring cell does not allocate downlink data transmission for an NR channel quality measurement reference signal, the channel quality detection of the NR terminal on the radio channel does not include the neighboring cell CRS interference, that is, the channel quality information reported by the NR terminal to the base station at this time cannot reflect the reception quality of the NR terminal under CRS interference, resulting in a decrease in the accuracy of operations such as resource allocation and scheduling performed by the base station. Summary of the Invention [Means for solving the problem]

[0007] According to an embodiment of the present disclosure, an NR terminal reports the LTE neighboring cell CRS interference suppression capability information of the NR terminal to an NR base station, and the NR base station receives the LTE neighboring cell CRS interference suppression capability information reported by the NR terminal to assist the base station in making decisions accurately.

[0008] Some embodiments of the present disclosure provide an information transmission method that includes reporting, by a New Radio (NR) terminal to an NR base station, Long Term Evolution (LTE) neighboring cell Cell Reference Signal (CRS) interference suppression capability information of the NR terminal.

[0009] In some embodiments, the NR terminal receives indication information regarding LTE neighbor cell CRS interference suppression transmitted by the NR base station via radio resource control (RRC) signaling, the indication information including at least one of enabling control information for the LTE neighbor cell CRS interference suppression or LTE neighbor cell CRS information.

[0010] In some embodiments, the NR terminal performs interference suppression according to the instruction information.

[0011] In some embodiments, the NR terminal performing interference suppression according to the instruction information includes, if the instruction information includes the enabling control information for the LTE neighbor cell CRS interference suppression, the NR terminal turning on or off the LTE neighbor cell CRS interference suppression according to the enabling control information for the LTE neighbor cell CRS interference suppression, or, if the instruction information includes the LTE neighbor cell CRS information, the NR terminal turning on the LTE neighbor cell CRS interference suppression according to the LTE neighbor cell CRS information and performing interference detection at a location corresponding to the LTE neighbor cell CRS information.

[0012] Some embodiments of the present disclosure provide an information transmission method that includes receiving, by an NR base station, LTE neighbor cell CRS interference suppression capability information reported by an NR terminal.

[0013] In some embodiments, the NR base station transmits instruction information regarding LTE neighbor cell CRS interference suppression to the NR terminal via RRC signaling, the instruction information including at least one of activation control information for the LTE neighbor cell CRS interference suppression or LTE neighbor cell CRS information.

[0014] In some embodiments, the NR base station transmits the indication information regarding the LTE neighboring cell CRS interference suppression to the NR terminal according to the LTE neighboring cell CRS interference suppression capability information of the NR terminal and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located.

[0015] In some embodiments, the NR base station transmitting the instruction information regarding the LTE neighbor cell CRS interference suppression to the NR terminal according to the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell in which the NR terminal is currently located comprises: when it is determined that the NR terminal supports the LTE neighbor cell CRS interference suppression and the LTE neighbor cell has CRS interference with the NR cell in which the NR terminal is currently located according to the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell in which the NR terminal is currently located, the NR base station transmitting to the NR terminal activation control information for turning on the LTE neighbor cell CRS interference suppression and / or the LTE neighbor cell CRS information; or the NR base station transmitting to the NR terminal activation control information for turning off the LTE neighbor cell CRS interference suppression according to the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell in which the NR terminal is currently located; When it is determined according to the interference suppression capability information and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located that the NR terminal supports the LTE neighboring cell CRS interference suppression and that the LTE neighboring cell does not cause CRS interference to the NR cell in which the NR terminal is currently located, the NR base station transmits to the NR terminal activation control information for turning off the LTE neighboring cell CRS interference suppression, or when it is determined according to the LTE neighboring cell CRS interference suppression capability information of the NR terminal and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located that the NR terminal supports blind detection-based LTE neighboring cell CRS interference suppression and the LTE neighboring cell has the CRS interference with respect to the NR cell in which the NR terminal is currently located, the NR base station transmits to the NR terminal activation control information for turning on the LTE neighboring cell CRS interference suppression and / or the LTE neighboring cell CRS information, or according to the LTE neighboring cell CRS interference suppression capability information of the NR terminal and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located, the NR terminal supports LTE neighboring cell CRS interference suppression,And when blind detection-based LTE neighboring cell CRS interference suppression is not supported, and it is determined that the LTE neighboring cell has CRS interference with the NR cell in which the NR terminal is currently located, the NR base station transmits the LTE neighboring cell CRS information to the NR terminal.

[0016] In some embodiments, the LTE neighboring cell CRS interference suppression capability information includes at least one of whether the NR terminal supports the LTE neighboring cell CRS interference suppression, whether the NR terminal supports blind detection based LTE neighboring cell CRS interference suppression, whether the NR terminal supports the LTE neighboring cell CRS interference suppression when the new radio subcarrier spacing is 30k, or whether the NR terminal supports LTE neighboring cell CRS interference suppression in an asynchronous system.

[0017] In some embodiments, the value of whether the NR terminal supports the LTE neighbor cell CRS interference suppression represents whether the NR terminal supports the LTE neighbor cell CRS interference suppression, the number of LTE neighbor cells that can be supported by the NR terminal to perform the LTE neighbor cell CRS interference suppression, or the number of component carriers that can be supported by the NR terminal to simultaneously perform the LTE neighbor cell CRS interference suppression in a carrier aggregation scenario.

[0018] In some embodiments, the enabling control information for LTE neighbor cell CRS interference suppression is sent via lte-CRS-ToMatchAround signaling or other RRC signaling other than the lte-CRS-ToMatchAround signaling.

[0019] In some embodiments, the LTE neighboring cell CRS information includes at least one of identification information of an LTE neighboring cell having CRS interference with the NR cell in which the NR terminal is currently located, the number of CRS ports, MBSFN subframe configuration information, center frequency and system bandwidth, time slot number information, a cyclic prefix used, or a duplex mode, and if the duplex mode is TDD, the LTE neighboring cell CRS information further includes uplink / downlink subframe allocation information.

[0020] In some embodiments, when the instruction information includes the LTE neighbor cell CRS information, sending the instruction information regarding the LTE neighbor cell CRS interference suppression by the NR base station to the NR terminal includes the NR base station sending a list including one or more arrays to the NR terminal via the RRC signaling, where each array in the list indicates the CRS information of the LTE neighbor cell having the CRS interference with the NR cell in which the NR terminal is currently located, known by a network side, to instruct the NR terminal to turn on the CRS interference suppression of the corresponding LTE neighbor cell, or the NR base station sending release information of the entire list or a part of the arrays to the NR terminal via the RRC signaling, instructing the NR terminal to release the list or the part of the arrays in the list and turn off CRS interference suppression of the corresponding LTE neighbor cell.

[0021] Some embodiments of the present disclosure provide an NR base station comprising a memory and a processor coupled to the memory, the processor configured to perform a method according to any of the embodiments based on instructions stored in the memory.

[0022] Some embodiments of the present disclosure provide an NR terminal comprising a memory and a processor coupled to the memory, the processor configured to perform a method according to any of the embodiments based on instructions stored in the memory.

[0023] Some embodiments of the present disclosure provide a communications system including an NR base station and an NR terminal.

[0024] Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method according to any of the embodiments.

[0025] The drawings that need to be used in describing the embodiments or related art are briefly described below. The present disclosure will be more clearly understood in accordance with the following detailed description taken in conjunction with the accompanying drawings.

[0026] It will be apparent that the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings according to these drawings without exerting creative efforts. [Brief description of the drawings]

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

[0028] The technical solutions in the embodiments of the present disclosure are clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure.

[0029] FIG. 1 illustrates a flow diagram of a method for transmitting information according to some embodiments of the present disclosure.

[0030] As shown in FIG. 1, the information transmission method 10 of this embodiment includes steps 110a to 110b, and may further include at least one of steps 120a, 120b, or 130, as necessary.

[0031] In step 110a, the NR terminal reports the NR terminal's LTE neighboring cell CRS interference suppression capability information to the NR base station.

[0032] The NR terminal performs channel quality detection of the wireless channel (if the LTE neighboring cell does not allocate downlink data transmission with the NR channel quality measurement reference signal, it does not include neighboring cell CRS interference), and at the same time, the NR terminal reports the LTE neighboring cell CRS interference suppression capability information of the NR terminal to the NR base station. Thus, the base station is assisted in making accurate decisions such as resource allocation and scheduling.

[0033] For example, the NR base station initiates a capability query to the NR terminal, and the NR terminal reports its LTE neighboring cell CRS interference suppression capability information to the NR base station.

[0034] Some examples of LTE neighbor cell CRS interference suppression capability information are presented below, but the present disclosure is not limited to these examples.

[0035] In some embodiments, the LTE neighbor cell CRS interference suppression capability information includes, for example, at least one of whether the NR terminal supports LTE neighbor cell CRS interference suppression (denoted as capability 1), whether the NR terminal supports blind detection based LTE neighbor cell CRS interference suppression (denoted as capability 2), whether the NR terminal supports LTE neighbor cell CRS interference suppression when the new radio subcarrier spacing is 30k (denoted as capability 3), or whether the NR terminal supports LTE neighbor cell CRS interference suppression in an asynchronous system (denoted as capability 4).

[0036] The network system has two implementation forms, i.e., an asynchronous system and a synchronous system, and in a practical network system, the CRS interference suppression of a synchronous network by an NR terminal may no longer be available in an asynchronous network. After an NR terminal reports whether it supports LTE neighbor cell CRS interference suppression in an asynchronous system, a base station judges whether the NR terminal supports LTE neighbor cell CRS interference suppression in an asynchronous network according to whether its own network belongs to an asynchronous network, and then selects whether to send indication information regarding LTE neighbor cell CRS interference suppression to the NR terminal.

[0037] The value of whether the NR terminal supports LTE neighboring cell CRS interference suppression represents whether the NR terminal supports LTE neighboring cell CRS interference suppression, the number of LTE neighboring cells that can be supported by the NR terminal to perform LTE neighboring cell CRS interference suppression, or the number of component carriers that can be supported by the NR terminal to simultaneously perform LTE neighboring cell CRS interference suppression in a carrier aggregation scenario.

[0038] The so-called blind detection-based LTE neighboring cell CRS interference suppression refers to the ability of an NR terminal to perform LTE neighboring cell CRS interference detection and suppression without the need for LTE neighboring cell CRS information to be transmitted by the network side.

[0039] In step 110b, the NR base station receives LTE neighboring cell CRS interference suppression capability information reported by the NR terminal.

[0040] In step 120a, the NR base station transmits instruction information regarding LTE neighboring cell CRS interference suppression to the NR terminal via RRC (Radio Resource Control) signaling, where the instruction information includes at least one of activation control information for LTE neighboring cell CRS interference suppression or LTE neighboring cell CRS information.

[0041] The NR base station transmits instruction information regarding LTE neighboring cell CRS interference suppression to the NR terminal according to the NR terminal's LTE neighboring cell CRS interference suppression capability information and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located.

[0042] The enablement control information for LTE neighbor cell CRS interference suppression is an explicit instruction indicating that the NR terminal should turn on or off the LTE neighbor cell CRS interference suppression. In addition to indicating the CRS information of the LTE neighbor cell to the NR terminal, the LTE neighbor cell CRS information also implicitly indicates that the NR terminal should turn on the LTE neighbor cell CRS interference suppression. That is, when the NR terminal receives the LTE neighbor cell CRS information issued by the NR base station, the NR terminal turns on the LTE neighbor cell CRS interference suppression.

[0043] The NR base station transmits the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell CRS interference suppression capability information of the NR terminal. NR Several examples of transmitting instruction information regarding LTE neighboring cell CRS interference suppression to an NR terminal according to the LTE neighboring cell information of a cell are presented below, but the present disclosure is not limited to these examples.

[0044] In some embodiments, the NR base station may transmit the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the location where the NR terminal is currently located. NR According to the LTE neighboring cell information of the cell, the NR terminal supports LTE neighboring cell CRS interference suppression and the NR terminal is currently located NR When it is determined that the LTE neighboring cell has CRS interference to the cell, the NR base station transmits activation control information for turning on LTE neighboring cell CRS interference suppression and / or LTE neighboring cell CRS information to the NR terminal. That is, the NR base station can transmit activation control information for turning on LTE neighboring cell CRS interference suppression to the NR terminal, or the NR base station can transmit LTE neighboring cell CRS information to the NR terminal, or the NR base station can simultaneously transmit activation control information for turning on LTE neighboring cell CRS interference suppression and LTE neighboring cell CRS information to the NR terminal.

[0045] In some embodiments, after the NR terminal turns on the LTE neighbor cell CRS interference suppression, the NR base station may further transmit enablement control information to the NR terminal for turning off the LTE neighbor cell CRS interference suppression according to the control requirements and control policies. For example, the NR base station may transmit enablement control information to the NR terminal for turning off the LTE neighbor cell CRS interference suppression capability information of the NR terminal and ... where the NR terminal is currently located. NR According to the LTE neighboring cell information of the cell, transmit activation control information to the NR terminal to turn off LTE neighboring cell CRS interference suppression.

[0046] In some embodiments, the NR base station may transmit the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the location where the NR terminal is currently located. NR According to the LTE neighboring cell information of the cell, the NR terminal supports LTE neighboring cell CRS interference suppression, and the NR terminal is currently located NR When it is determined that an LTE neighboring cell does not have CRS interference with the cell, activation control information is transmitted to the NR terminal to turn off LTE neighboring cell CRS interference suppression.

[0047] In some embodiments, the NR base station may transmit the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the location where the NR terminal is currently located. NR According to the LTE neighboring cell information of the cell, the NR terminal supports blind detection-based LTE neighboring cell CRS interference suppression, and the NR terminal is currently located NR When it is determined that an LTE neighboring cell has CRS interference with a cell, the LTE neighboring cell CRS information and / or activation control information for turning on LTE neighboring cell CRS interference suppression is transmitted to the NR terminal.

[0048] In some embodiments, the NR base station may transmit the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the location where the NR terminal is currently located. NR According to the LTE neighboring cell information of the cell, if the NR terminal supports LTE neighboring cell CRS interference suppression, does not support blind detection-based LTE neighboring cell CRS interference suppression, and the NR terminal is currently located NRWhen it is determined that an LTE neighboring cell has CRS interference with a cell, the LTE neighboring cell CRS information is sent to the NR terminal.

[0049] The enabling control information for LTE neighbor cell CRS interference suppression is transmitted via lte-CRS-ToMatchAround signaling or other RRC signaling other than lte-CRS-ToMatchAround signaling.

[0050] The indication method of the LTE neighbor cell CRS information type for the indication information regarding LTE neighbor cell CRS interference suppression includes an NR base station sending a list including one or more arrays to an NR terminal via RRC signaling, and each array in the list is a list of an NR terminal currently located in a region known to the network side. NR The list indicates CRS information of LTE neighboring cells having CRS interference with the cell, and implicitly instructs the NR terminal to turn on CRS interference suppression of the corresponding LTE neighboring cells. The list includes up to N arrays, where N is a constant and its value can be preset. The NR base station transmits release information of the entire list or a part of the arrays to the NR terminal via RRC signaling, instructing the NR terminal to release the list or a part of the arrays in the list and turn off CRS interference suppression of the corresponding LTE neighboring cells.

[0051] LTE neighbor cell CRS information is used to determine the current location of the NR terminal. NRThe LTE neighbor cell CRS information includes at least one of the following: identity information of the LTE neighbor cell having CRS interference to the cell (e.g., the physical ID of the LTE neighbor cell, or the modulo 6 of the physical ID of the LTE neighbor cell (i.e., v-Shift, the related definition of which may be available by referring to TS 36.2116.10.1)), the number of CRS ports (e.g., 1-port / 2-port / 4-port), MBSFN (Multicast Broadcast Single Frequency Network) subframe configuration information, center frequency and system bandwidth (e.g., the number of RBs (Resource Blocks)), time slot number information, the cyclic prefix (CP, e.g., normal CP or extended CP) used, and duplex mode (e.g., FDD (Frequency Division Duplexing) or TDD (Time Division Duplexing)), and if the duplex mode is TDD, the LTE neighbor cell CRS information further includes uplink / downlink subframe allocation information. If the number of CRS ports and MBSFN subframe configuration information is not transmitted, then the NR terminal should default the configuration of the relevant fields of the LTE neighboring cell CRS to be equal to the configuration of the LTE CRS co-located with the cell.

[0052] An exemplary format of the time slot number information is the correspondence between the time slot number Ns,f of the current NR cell and the LTE neighbor cell time slot number Ns, where the field is Ns=(Ns,f+k)%20 when the NR cell subcarrier spacing is 30 kHz, and Ns=(Ns,f×2+k)%20 when the NR cell subcarrier spacing is 15 kHz, so that the LTE time slot Ns at this time coincides with the first seven symbols of the NR time slot Ns,f in the time domain. The format of the time slot number information is not limited to the presented example.

[0053] In step 120b, the NR terminal receives indication information regarding LTE neighbor cell CRS interference suppression transmitted by the NR base station via RRC signaling.

[0054] In step 130, the NR terminal performs interference suppression according to the instruction information.

[0055] In some embodiments, if the instruction information includes enabling control information for LTE neighboring cell CRS interference suppression, the NR terminal turns on or off LTE neighboring cell CRS interference suppression according to the enabling control information for LTE neighboring cell CRS interference suppression, and if the instruction information includes LTE neighboring cell CRS information, the NR terminal turns on LTE neighboring cell CRS interference suppression according to the LTE neighboring cell CRS information and performs interference detection at a location corresponding to the LTE neighboring cell CRS information.

[0056] In some embodiments, an NR terminal can perform interference suppression using a serial interference cancellation technique. Specifically, a pre-equalization detection algorithm first detects the signal with the maximum strength from the received original signal, determines whether the detected signal is the desired signal, if it is the desired signal, the detection is stopped, if it is not the desired signal, the signal acting as interference is subtracted from the original signal, the next detection is started, and so on until the desired signal is detected.

[0057] In the above embodiment, the NR terminal reports the LTE neighboring cell CRS interference suppression capability information of the NR terminal to the NR base station, and the NR base station receives the LTE neighboring cell CRS interference suppression capability information reported by the NR terminal to assist the NR base station in accurately making decisions on resource allocation, scheduling, etc. The NR base station receives the LTE neighboring cell CRS interference suppression capability information of the NR terminal and the LTE neighboring cell CRS interference suppression capability information of the NR terminal where the NR terminal is currently located. NRAccording to the LTE neighbor cell information of the cell, the NR base station transmits instruction information on LTE neighbor cell CRS interference suppression to the NR terminal, so that the NR base station performs more targeted control for LTE neighbor cell CRS interference suppression by the NR terminal according to the capability of the NR terminal. At the same time, the NR terminal performs interference suppression according to the instruction information of the NR base station, which can assist the NR terminal in performing more targeted interference suppression to suppress some blind detection operations of the NR terminal and improve the reliability of downlink data reception. For example, the explicit or implicit enablement control for LTE neighbor cell CRS interference suppression avoids the NR terminal from performing wasteful CRS detection in a scenario of non-coexistence of NR and LTE, saving the energy consumption of the NR terminal. In another example, transmitting LTE neighbor cell CRS information can assist an NR terminal that does not support blind detection to perform interference detection, and helps an NR terminal that supports blind detection to reduce the complexity of search and calculation.

[0058] Some application examples are given below. In a scenario of coexistence between NR and LTE, assume that the 5G system bandwidth of the NR cell is B1, the 4G system bandwidth of the LTE neighboring cell 1 is B2, the 4G system bandwidth of the LTE neighboring cell 2 is B3, the frequency domain overlapping part between B1 and B2 is B12, and the frequency domain overlapping part between B1 and B3 is B13. The above information is known on the 5G NR network side, and for a 5G NR terminal accessed to a serving cell, the NR base station initiates a capability query to the NR terminal, and the NR terminal reports LTE neighboring cell CRS interference suppression capability information to the NR base station, such as whether it supports LTE neighboring cell CRS interference suppression. Assuming that the NR terminal M reports that it supports capability 1 and capability 2, and assuming that 5G NR and 4G LTE coexist in a cell, when configuring the NR terminal M, the NR base station can transmit LTE-CRS-ToMatchAround signaling to the NR terminal, instructing the NR terminal to perform rate matching for the CRS time-frequency resources of LTE in the cell, and at the same time implicitly instructing the NR terminal to blindly detect whether adjacent cell CRS interference exists and perform interference suppression. Or, the NR base station implicitly instructs the NR terminal to blindly detect whether adjacent cell CRS interference exists and perform interference suppression via additional RRC signaling. In addition, the NR base station may directly transmit adjacent cell CRS configuration information to the NR terminal via RRC signaling to instruct the NR terminal M to perform CRS interference detection and suppression at the corresponding position.

[0059] FIG. 2 illustrates a schematic diagram of a communication system 20 according to some embodiments of the present disclosure.

[0060] As shown in FIG. 2, the communication system 20 of this embodiment includes an NR base station 30 and one or more NR terminals 40.

[0061] FIG. 3 illustrates a schematic diagram of an NR base station 30 in accordance with some embodiments of the present disclosure.

[0062] As shown in FIG. 3, the NR base station 30 of this embodiment includes a memory 310 and a processor 320 coupled to the memory 310, and the processor 320 is configured to perform the information transmission method performed by the NR base station in the previous embodiment based on instructions stored in the memory 310.

[0063] For example, an NR base station receives LTE neighboring cell CRS interference suppression capability information reported by an NR terminal.

[0064] For example, an NR base station transmits instruction information regarding LTE neighboring cell CRS interference suppression to an NR terminal via RRC signaling, and the instruction information includes at least one of activation control information for LTE neighboring cell CRS interference suppression or LTE neighboring cell CRS information.

[0065] For example, the NR base station transmits instruction information regarding LTE neighboring cell CRS interference suppression to the NR terminal according to the LTE neighboring cell CRS interference suppression capability information of the NR terminal and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located.

[0066] FIG. 4 illustrates a schematic diagram of an NR terminal 40 in accordance with some embodiments of the disclosure.

[0067] As shown in FIG. 4, the NR terminal 40 of this embodiment includes a memory 410 and a processor 420 coupled to the memory 410, and the processor 420 is configured to execute the information transmission method performed by the NR terminal in the above embodiment based on instructions stored in the memory 410.

[0068] For example, an NR terminal reports the LTE neighboring cell CRS interference suppression capability information of the NR terminal to an NR base station.

[0069] For example, an NR terminal receives instruction information regarding LTE neighboring cell CRS interference suppression transmitted by an NR base station via RRC signaling, and the instruction information includes at least one of activation control information for LTE neighboring cell CRS interference suppression or LTE neighboring cell CRS information.

[0070] For example, the NR terminal performs interference suppression according to the instruction information. If the instruction information includes enablement control information for LTE neighboring cell CRS interference suppression, the NR terminal turns on or off the LTE neighboring cell CRS interference suppression according to the enablement control information for LTE neighboring cell CRS interference suppression. If the instruction information includes LTE neighboring cell CRS information, the NR terminal turns on the LTE neighboring cell CRS interference suppression according to the LTE neighboring cell CRS information, and performs interference detection at a position corresponding to the LTE neighboring cell CRS information.

[0071] The memories 310 and 410 may include, for example, a system memory, a fixed non-volatile storage medium, etc. The system memory stores, for example, an operating system, applications, a boot loader, and other programs.

[0072] Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of the information transmission method in the above-mentioned embodiments.

[0073] It should be understood by those skilled in the art that the embodiments of the present disclosure may be provided as a method, a system, or a computer program product. Thus, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more non-transitory computer-readable storage mediums (including, but not limited to, disk memories, CD-ROMs, optical memories, etc.) having computer program code embodied therein.

[0074] The present disclosure is described with reference to flow diagrams and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each flow and / or block of the flow diagrams and / or block diagrams, and combinations of flows and / or blocks in the flow diagrams and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to manufacture a machine, such that the instructions executed through a processor of a computer or other programmable data processing device create means for implementing the functions specified in one or more flows and / or one or more blocks of the flow diagrams and / or block diagrams.

[0075] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner to produce an article of manufacture that includes instruction means that implement the functions identified in one or more flows of the flow diagrams and / or one or more blocks of the block diagrams, where the instructions stored in the computer readable memory.

[0076] These computer program instructions can also be loaded onto a computer or other programmable data processing device and cause the computer or other programmable device to perform a series of operational steps to generate a computer-implemented process, such that the instructions executing on the computer or other programmable device provide steps for implementing the functions identified in one or more flows of the flow diagrams and / or one or more blocks of the block diagrams.

[0077] The above contents are only preferred embodiments of the present disclosure and are not used to limit the present disclosure, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A new radio (NR) terminal reports to an NR base station LTE (Long Term Evolution) neighboring cell CRS (Cell Reference Signal) interference suppression capability information of the NR terminal; The LTE neighboring cell CRS interference suppression capability information, Whether the NR terminal supports LTE neighboring cell CRS interference suppression without LTE neighboring cell CRS information from the network; or When the subcarrier spacing of the new radio is 30 kHz, whether the NR terminal supports the LTE neighboring cell CRS interference suppression; An information transmission method, comprising at least one of the following:

2. The information transmission method of claim 1, further comprising receiving, by the NR terminal, instruction information regarding the LTE neighboring cell CRS interference suppression transmitted by the NR base station via radio resource control (RRC) signaling, the instruction information including at least one of activation control information for the LTE neighboring cell CRS interference suppression or the LTE neighboring cell CRS information.

3. The information transmission method of claim 2 , further comprising: performing interference suppression by the NR terminal in accordance with the instruction information.

4. Executing interference suppression by the NR terminal according to the instruction information When the instruction information includes the enabling control information for the LTE neighboring cell CRS interference suppression, the NR terminal turns on or off the LTE neighboring cell CRS interference suppression according to the enabling control information for the LTE neighboring cell CRS interference suppression; or When the instruction information includes the LTE neighboring cell CRS information, the NR terminal turns on the LTE neighboring cell CRS interference suppression according to the LTE neighboring cell CRS information and performs interference detection at a position corresponding to the LTE neighboring cell CRS information; The information transmission method according to claim 3 , comprising:

5. The method includes receiving, by an NR base station, LTE neighboring cell CRS interference suppression capability information reported by an NR terminal; The LTE neighboring cell CRS interference suppression capability information, Whether the NR terminal supports LTE neighboring cell CRS interference suppression without LTE neighboring cell CRS information from the network; or When the subcarrier spacing of the new radio is 30 kHz, whether the NR terminal supports the LTE neighboring cell CRS interference suppression; An information transmission method, comprising at least one of the following:

6. The information transmission method of claim 5 further includes transmitting, by the NR base station, instruction information regarding the LTE neighboring cell CRS interference suppression to the NR terminal via RRC signaling, the instruction information including at least one of activation control information for the LTE neighboring cell CRS interference suppression or the LTE neighboring cell CRS information.

7. The information transmission method of claim 6, wherein the NR base station transmits the instruction information regarding the LTE neighboring cell CRS interference suppression to the NR terminal according to the LTE neighboring cell CRS interference suppression capability information of the NR terminal and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located.

8. The NR base station transmits the instruction information regarding the LTE neighboring cell CRS interference suppression to the NR terminal according to the LTE neighboring cell CRS interference suppression capability information of the NR terminal and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located. When it is determined according to the LTE neighboring cell CRS interference suppression capability information of the NR terminal and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located that the NR terminal supports the LTE neighboring cell CRS interference suppression and that the LTE neighboring cell has CRS interference with the NR cell in which the NR terminal is currently located, the NR base station transmits to the NR terminal activation control information for turning on the LTE neighboring cell CRS interference suppression and / or the LTE neighboring cell CRS information; or The NR base station transmits to the NR terminal activation control information for turning off the LTE neighboring cell CRS interference suppression according to the LTE neighboring cell CRS interference suppression capability information of the NR terminal and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located; or When it is determined according to the LTE neighboring cell CRS interference suppression capability information of the NR terminal and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located that the NR terminal supports the LTE neighboring cell CRS interference suppression and that the LTE neighboring cell does not cause CRS interference to the NR cell in which the NR terminal is currently located, the NR base station transmits activation control information to the NR terminal to turn off the LTE neighboring cell CRS interference suppression; or According to the NR terminal's LTE neighboring cell CRS interference suppression capability information and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located, when it is determined that the NR terminal supports blind detection-based LTE neighboring cell CRS interference suppression and that the LTE neighboring cell has the CRS interference with respect to the NR cell in which the NR terminal is currently located, the NR base station transmits to the NR terminal activation control information for turning on the LTE neighboring cell CRS interference suppression and / or the LTE neighboring cell CRS information; or According to the NR terminal's LTE neighboring cell CRS interference suppression capability information and the LTE neighboring cell information of the NR cell in which the NR terminal is currently located, when it is determined that the NR terminal supports the LTE neighboring cell CRS interference suppression and does not support blind detection-based LTE neighboring cell CRS interference suppression, and the LTE neighboring cell has the CRS interference with respect to the NR cell in which the NR terminal is currently located, the NR base station transmits the LTE neighboring cell CRS information to the NR terminal; The information transmission method according to claim 7, comprising:

9. The LTE neighboring cell CRS interference suppression capability information, Whether the NR terminal supports the LTE neighboring cell CRS interference suppression, or Whether the NR terminal supports LTE neighboring cell CRS interference suppression in an asynchronous system; The information transmission method according to claim 1 , further comprising at least one of the following:

10. The information transmission method of claim 9, wherein the value of whether the NR terminal supports the LTE neighboring cell CRS interference suppression represents whether the NR terminal supports the LTE neighboring cell CRS interference suppression, the number of LTE neighboring cells that can be supported by the NR terminal to perform the LTE neighboring cell CRS interference suppression, or the number of component carriers that can be supported by the NR terminal to simultaneously perform the LTE neighboring cell CRS interference suppression in a carrier aggregation scenario.

11. The enabling control information for the LTE neighboring cell CRS interference suppression is transmitted via LTE-CRS-ToMatchAround signaling or other RRC signaling other than the LTE-CRS-ToMatchAround signaling. The information transmission method according to any one of claims 2 to 4 and 6 to 8.

12. The LTE neighboring cell CRS information includes at least one of identification information of an LTE neighboring cell having CRS interference with the NR cell in which the NR terminal is currently located, the number of CRS ports, MBSFN subframe configuration information, center frequency and system bandwidth, time slot number information, cyclic prefix used, or duplex mode; The information transmission method according to claim 2 , wherein if the duplex mode is TDD, the LTE neighboring cell CRS information further includes uplink / downlink subframe allocation information.

13. When the instruction information includes the LTE neighboring cell CRS information, transmitting the instruction information regarding the LTE neighboring cell CRS interference suppression to the NR terminal by the NR base station is The NR base station transmits a list including one or more arrays to the NR terminal via the RRC signaling, each array in the list indicating the CRS information of an LTE neighboring cell having CRS interference with the NR cell in which the NR terminal is currently located, which is known by a network side to instruct the NR terminal to turn on the CRS interference suppression of the corresponding LTE neighboring cell; or The NR base station transmits release information of the entire list or a part of the array to the NR terminal via the RRC signaling to instruct the NR terminal to release the list or the part of the array in the list and turn off the CRS interference suppression of the corresponding LTE neighbor cell; 9. The information transmission method according to claim 2, further comprising:

14. Memory, A processor coupled to the memory, the processor being configured to perform the method of any one of claims 5 to 13 based on instructions stored in the memory; An NR base station comprising:

15. Memory, a processor coupled to said memory, said processor configured to perform the method of any one of claims 1 to 4 and 9 to 12 based on instructions stored in said memory; An NR terminal comprising:

16. An NR base station according to claim 14; The NR terminal according to claim 15; A communication system comprising:

17. A computer-readable non-transitory storage medium storing a computer program which, when executed by a processor, performs the steps of the information transmission method according to any one of claims 1 to 13.

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