Information transmission method, base station, terminal and communication system

Abstract

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

Description

[0001] This application is a divisional application of the invention patent application with application number: 202110339566.7, application date: March 30, 2021, and the name of the invention: Information transmission method, base station, terminal and communication system. Technical Field

[0002] The present disclosure 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 Art

[0003] 4G (4 th , 4th generation) LTE (Long Term Evolution) and 5G (5 th Dynamic spectrum sharing (DSS) technology between 5th generation (5th generation) NR (New Radio) is that LTE terminals and NR terminals share the same spectrum, and the network side dynamically allocates resources to the terminals for 4G or 5G transmission according to network load and other conditions.

[0004] The 4G LTE system in the neighboring cell working in DSS mode has a downlink cell reference signal (CRS) that is always on and occupies fixed resources, which will cause significant interference to the reception of 5G NR terminals in this cell.

[0005] For NR terminals that support the capability of eliminating interference from neighboring cells, when the 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 the channel quality information based on interference suppression to the NR base station through the measurement, estimation, and equalization algorithms of the CSI-RS. The information includes the interference suppression of neighboring cells including CRS interference. At this time, the scheduling of the NR base station based on this channel quality information matches the actual transmission quality.

[0006] However, if the LTE neighboring cell does not allocate downlink data transmission on the NR channel quality measurement reference signal, the channel quality detection of the wireless channel by the NR terminal does not include the CRS interference of the neighboring cell. 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 reduced accuracy of operations such as resource allocation and scheduling performed by the base station. Summary of the invention

[0007] In an embodiment of the present disclosure, 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 base station in making accurate decisions.

[0008] Some embodiments of the present disclosure propose an information transmission method, including: a new radio interface NR terminal reports to an NR base station the Long Term Evolution LTE neighboring cell reference signal CRS interference suppression capability information of the NR terminal.

[0009] In some embodiments, the NR terminal receives indication information related to LTE neighbor cell CRS interference suppression sent by the NR base station through radio resource control RRC signaling, wherein the indication information includes one or more of enabling control information for 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 indication information.

[0011] In some embodiments, the NR terminal performs interference suppression according to the indication information, including:

[0012] If the indication information includes enabling control information of 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 of LTE neighboring cell CRS interference suppression;

[0013] If the indication information includes LTE neighbor cell CRS information, the NR terminal turns on LTE neighbor cell CRS interference suppression according to the LTE neighbor cell CRS information, and performs interference detection at a position corresponding to the LTE neighbor cell CRS information.

[0014] Some embodiments of the present disclosure propose an information transmission method, including: an NR base station receives LTE neighboring cell CRS interference suppression capability information reported by an NR terminal.

[0015] In some embodiments, the NR base station sends indication information related to LTE neighbor cell CRS interference suppression to the NR terminal through RRC signaling, wherein the indication information includes one or more of enabling control information for LTE neighbor cell CRS interference suppression and LTE neighbor cell CRS information.

[0016] In some embodiments, the NR base station sends indication information related to LTE neighbor cell CRS interference suppression to the NR terminal based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell where the NR terminal is currently located.

[0017] In some embodiments, the NR base station sends indication information related to 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 where the NR terminal is currently located, including:

[0018] The NR base station determines, 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 currently located by the NR terminal, that the NR terminal supports LTE neighbor cell CRS interference suppression, and the LTE neighbor cell has CRS interference on the NR cell currently located by the NR terminal, and sends to the NR terminal enabling control information for turning on LTE neighbor cell CRS interference suppression and / or LTE neighbor cell CRS information;

[0019] Or, the NR base station sends, to the NR terminal, enabling control information for disabling 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 where the NR terminal is currently located;

[0020] Or, the NR base station determines, based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell currently located by the NR terminal, that the NR terminal supports LTE neighbor cell CRS interference suppression, and the LTE neighbor cell has no CRS interference to the NR cell currently located by the NR terminal, and sends enabling control information for disabling LTE neighbor cell CRS interference suppression to the NR terminal;

[0021] Or, the NR base station determines, 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 where the NR terminal is currently located, that the NR terminal supports LTE neighbor cell CRS interference suppression based on blind detection, and the LTE neighbor cell has CRS interference on the NR cell where the NR terminal is currently located, and sends enabling control information and / or LTE neighbor cell CRS information for turning on LTE neighbor cell CRS interference suppression to the NR terminal;

[0022] Or, the NR base station determines, based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell where the NR terminal is currently located, that the NR terminal supports LTE neighbor cell CRS interference suppression, does not support LTE neighbor cell CRS interference suppression based on blind detection, and when the LTE neighbor cell has CRS interference on the NR cell where the NR terminal is currently located, the NR base station sends the LTE neighbor cell CRS information to the NR terminal.

[0023] In some embodiments, the LTE neighboring cell CRS interference suppression capability information includes one or more of the following:

[0024] Whether the NR terminal supports LTE neighboring cell CRS interference suppression;

[0025] Whether the NR terminal supports LTE neighboring cell CRS interference suppression based on blind detection;

[0026] When the new air interface subcarrier spacing is 30k, does the NR terminal support LTE neighboring cell CRS interference suppression?

[0027] Whether the NR terminal supports LTE neighboring cell CRS interference suppression in an asynchronous system.

[0028] In some embodiments, the numerical value of whether the NR terminal supports LTE neighbor cell CRS interference suppression indicates whether the NR terminal supports LTE neighbor cell CRS interference suppression, the number of LTE neighbor cells that the NR terminal can support for LTE neighbor cell CRS interference suppression, or the number of carrier units that the NR terminal can support for simultaneous LTE neighbor cell CRS interference suppression in a carrier aggregation scenario.

[0029] In some embodiments, the enabling control information of LTE neighbor cell CRS interference suppression is sent through lte-CRS-ToMatchAround signaling or other RRC signaling except lte-CRS-ToMatchAround signaling.

[0030] In some embodiments, the LTE neighbor cell CRS information includes one or more of the following:

[0031] The identification information, number of CRS ports, MBSFN subframe configuration information, central carrier and system bandwidth, timeslot number information, cyclic prefix used, and duplex mode of the LTE neighboring cell that has CRS interference in the NR cell where the NR terminal is currently located;

[0032] If the duplex mode is TDD, the LTE neighboring cell CRS information also includes uplink and downlink subframe ratio information.

[0033] In some embodiments, when the indication information includes LTE neighboring cell CRS information, the NR base station sends indication information related to LTE neighboring cell CRS interference suppression to the NR terminal, including:

[0034] The NR base station sends a list containing one or more arrays to the NR terminal through RRC signaling, where each array in the list indicates the CRS information of the LTE neighboring cell known to the network side that has CRS interference on the NR cell where the NR terminal is currently located, so as to instruct the NR terminal to turn on CRS interference suppression of the corresponding LTE neighboring cell;

[0035] Alternatively, the NR base station sends release information of the entire list or a partial array to the NR terminal through RRC signaling to instruct the NR terminal to release the list or release a partial array in the list, and turn off the CRS interference suppression of the corresponding LTE neighboring cell.

[0036] Some embodiments of the present disclosure propose an NR base station, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute the method described in any one of the embodiments based on instructions stored in the memory.

[0037] Some embodiments of the present disclosure propose an NR terminal, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute the method described in any one of the embodiments based on instructions stored in the memory.

[0038] Some embodiments of the present disclosure propose a communication system, including: a NR base station; and a NR terminal.

[0039] Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium having a computer program stored thereon, which implements the steps of the method described in any one of the embodiments when the program is executed by a processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. The present disclosure can be more clearly understood according to the following detailed description with reference to the drawings.

[0041] Obviously, the drawings described below are only some embodiments of the present disclosure, and a person skilled in the art can obtain other drawings based on these drawings without creative work.

[0042] Figure 1 A schematic flow chart of an interference suppression method 10 according to some embodiments of the present disclosure is shown.

[0043] Figure 2 A schematic diagram of a communication system 20 is shown in accordance with some embodiments of the present disclosure.

[0044] Figure 3 A schematic diagram of a base station 30 according to some embodiments of the present disclosure is shown.

[0045] Figure 4 A schematic diagram of a terminal 40 is shown according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure.

[0047] Figure 1 A schematic diagram showing a flow chart of an information transmission method according to some embodiments of the present disclosure.

[0048] like Figure 1 As shown, the information transmission method 10 of this embodiment includes steps 110a-110b; if necessary, it can also include one or more steps of steps 120a, 120b, and 130.

[0049] In step 110a, the NR terminal reports the LTE neighboring cell CRS interference suppression capability information of the NR terminal to the NR base station.

[0050] The NR terminal performs channel quality detection of the wireless channel (if the LTE neighboring cell does not allocate downlink data transmission on the NR channel quality measurement reference signal, the detection does not include the neighboring cell CRS interference), and the NR terminal reports the LTE neighboring cell CRS interference suppression capability information of the NR terminal to the NR base station. Thus, the auxiliary base station accurately makes decisions such as resource allocation and scheduling.

[0051] For example, the NR base station initiates a capability query to the NR terminal, and the NR terminal reports its own LTE neighboring cell CRS interference suppression capability information to the NR base station.

[0052] Some examples of LTE neighbor cell CRS interference suppression capability information are listed below, but the present disclosure is not limited to these examples.

[0053] In some embodiments, the LTE neighboring cell CRS interference suppression capability information includes, for example, one or more of the following:

[0054] Whether the NR terminal supports LTE neighboring cell CRS interference suppression (set to capability 1);

[0055] Whether the NR terminal supports LTE neighbor cell CRS interference suppression based on blind detection (set to capability 2);

[0056] When the new air interface subcarrier spacing is 30k, whether the NR terminal supports LTE neighboring cell CRS interference suppression (set to capability 3);

[0057] Whether the NR terminal supports LTE neighbor cell CRS interference suppression in asynchronous system (set to capability 4).

[0058] Among them, the value of whether the NR terminal supports LTE neighbor cell CRS interference suppression indicates whether the NR terminal supports LTE neighbor cell CRS interference suppression, the number of LTE neighbor cells that the NR terminal can support for LTE neighbor cell CRS interference suppression, or the number of component carriers that the NR terminal can support for LTE neighbor cell CRS interference suppression at the same time in the carrier aggregation scenario.

[0059] Among them, the so-called LTE neighbor cell CRS interference suppression based on blind detection means that the NR terminal can perform LTE neighbor cell CRS interference detection and suppression without the need for the network side to send down LTE neighbor cell CRS information.

[0060] In step 110b, the NR base station receives the LTE neighboring cell CRS interference suppression capability information reported by the NR terminal.

[0061] In step 120a, the NR base station sends indication information related to LTE neighbor cell CRS interference suppression to the NR terminal through RRC (Radio Resource Control) signaling, wherein the indication information includes one or more of the enabling control information of LTE neighbor cell CRS interference suppression and LTE neighbor cell CRS information.

[0062] The NR base station sends indication information related to LTE neighbor cell CRS interference suppression to the NR terminal based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell where the NR terminal is currently located.

[0063] Among them, the enabling control information of LTE neighbor cell CRS interference suppression is an explicit indication method for instructing the NR terminal to turn on or off 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 is also an implicit indication method for instructing the NR terminal to turn on LTE neighbor cell CRS interference suppression. That is, if the NR terminal receives the LTE neighbor cell CRS information sent by the NR base station, the NR terminal turns on the LTE neighbor cell CRS interference suppression.

[0064] Some examples are listed below in which the NR base station sends indication information related to LTE neighbor cell CRS interference suppression to the NR terminal based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the LTE cell where the NR terminal is currently located. However, the present disclosure is not limited to these examples.

[0065] In some embodiments, when the NR base station determines that the NR terminal supports LTE neighbor cell CRS interference suppression and the LTE neighbor cell has CRS interference to the LTE cell where the NR terminal is currently located based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the LTE cell where the NR terminal is currently located, the NR base station sends the NR terminal enabling control information and / or LTE neighbor cell CRS information for turning on LTE neighbor cell CRS interference suppression. That is, the NR base station can send the NR terminal enabling control information for turning on LTE neighbor cell CRS interference suppression, or the NR base station can send the LTE neighbor cell CRS information to the NR terminal, or the NR base station simultaneously sends the NR terminal enabling control information and LTE neighbor cell CRS information for turning on LTE neighbor cell CRS interference suppression.

[0066] In some embodiments, after the NR terminal turns on LTE neighbor cell CRS interference suppression, the NR base station may also send enabling control information for turning off LTE neighbor cell CRS interference suppression to the NR terminal according to control needs and control strategies. For example, the NR base station sends enabling control information for turning off LTE neighbor cell CRS interference suppression to the NR terminal based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the LTE cell where the NR terminal is currently located.

[0067] In some embodiments, the NR base station determines, based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the LTE cell where the NR terminal is currently located, that the NR terminal supports LTE neighbor cell CRS interference suppression, and the LTE neighbor cell has no CRS interference to the LTE cell where the NR terminal is currently located, and sends enabling control information for disabling LTE neighbor cell CRS interference suppression to the NR terminal;

[0068] In some embodiments, the NR base station determines, based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the LTE cell where the NR terminal is currently located, that the NR terminal supports LTE neighbor cell CRS interference suppression based on blind detection, and the LTE neighbor cell has CRS interference on the LTE cell where the NR terminal is currently located, and sends enabling control information and / or LTE neighbor cell CRS information for turning on LTE neighbor cell CRS interference suppression to the NR terminal;

[0069] In some embodiments, the NR base station determines, based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the LTE cell where the NR terminal is currently located, that the NR terminal supports LTE neighbor cell CRS interference suppression, does not support LTE neighbor cell CRS interference suppression based on blind detection, and when the LTE neighbor cell has CRS interference on the LTE cell where the NR terminal is currently located, the NR base station sends the LTE neighbor cell CRS information to the NR terminal.

[0070] The enabling control information of LTE neighbor cell CRS interference suppression is sent through lte-CRS-ToMatchAround signaling or other RRC signaling except lte-CRS-ToMatchAround signaling.

[0071] The indication method of the indication information related to LTE neighbor cell CRS interference suppression of the LTE neighbor cell CRS information type includes: the NR base station sends a list (list) containing one or more arrays to the NR terminal through RRC signaling, and each array in the list indicates the CRS information of the LTE neighbor cells known to the network side that have CRS interference to the LTE cell where the NR terminal is currently located, so as to implicitly instruct the NR terminal to turn on the CRS interference suppression of the corresponding LTE neighbor cells. The list includes a maximum of N arrays, N is a constant and its value can be pre-configured. The NR base station sends the release information of the entire list or part of the array to the NR terminal through RRC signaling to instruct the NR terminal to release the list or release part of the arrays in the list, and turn off the CRS interference suppression of the corresponding LTE neighbor cells.

[0072] The LTE neighbor cell CRS information includes one or more of the following: the following information of the LTE neighbor cell that has CRS interference to the LTE cell where the NR terminal is currently located: identification information (such as the physical ID of the LTE neighbor cell, or the remainder of the physical ID of the LTE neighbor cell modulo 6 (i.e., v-Shift, for related definitions, refer to TS 36.211 6.10.1), the number of CRS ports (such as 1 port / 2 ports / 4 ports), MBSFN (Multicast Broadcast Single Frequency Network) subframe configuration information, the center carrier and system bandwidth (such as the number of RBs (Resource Blocks)), time slot number information, the used cyclic prefix (Cyclic Prefix, CP, such as normal CP (general cyclic prefix) or extended CP (extended cyclic prefix), duplex mode (such as FDD (Frequency Division Duplexing) or TDD (Time Division Duplexing) Duplexing, time division duplexing)); if the duplexing mode is TDD, the LTE neighbor cell CRS information also includes uplink and downlink subframe ratio information. If the CRS port number and MBSFN subframe configuration information are not sent, the NR terminal should default to the LTE neighbor cell CRS configuration that is equivalent to the LTE CRS configuration co-located with the current cell.

[0073] An exemplary form of time slot number information is: the correspondence between the current NR cell time slot number Ns,f and the neighboring LTE cell time slot number Ns, the field is set to an integer k of 0 to 19, when the NR cell subcarrier spacing is 30kHz, Ns = (Ns,f + k)%20; when the NR cell subcarrier spacing is 15kHz, Ns = (Ns,f×2 +k)%20, at this time, the LTE Ns time slot is aligned with the first 7 symbols of the NR Ns,f time slot. The form of the time slot number information is not limited to the examples given.

[0074] In step 120b, the NR terminal receives indication information related to LTE neighboring cell CRS interference suppression sent by the NR base station through RRC signaling.

[0075] In step 130, the NR terminal performs interference suppression according to the indication information.

[0076] In some embodiments, if the indication information includes enabling control information for LTE neighbor cell CRS interference suppression, the NR terminal turns on or off LTE neighbor cell CRS interference suppression according to the enabling control information for LTE neighbor cell CRS interference suppression; if the indication information includes LTE neighbor cell CRS information, the NR terminal turns on LTE neighbor cell CRS interference suppression according to the LTE neighbor cell CRS information, and performs interference detection at the corresponding position of the LTE neighbor cell CRS information.

[0077] In some embodiments, the NR terminal can use serial interference cancellation technology to suppress interference. Specifically, first, the pre-equalization detection algorithm is used to detect the signal with the strongest strength from the received original signal, and it is determined whether the detected signal is the desired signal. If it is, the detection is stopped. If not, the signal as interference is subtracted from the original signal, and the next detection is started, and this cycle is repeated until the desired signal is detected.

[0078] In the above embodiment, the NR terminal reports the LTE neighbor cell CRS interference suppression capability information of the NR terminal to the NR base station, and the NR base station receives the LTE neighbor cell CRS interference suppression capability information reported by the NR terminal to assist the base station in accurately making decisions such as resource allocation and scheduling. The NR base station sends the LTE neighbor cell CRS interference suppression related indication information to the NR terminal based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the LTE cell where the NR terminal is currently located, so that the NR base station controls the LTE neighbor cell CRS interference suppression of the NR terminal more specifically according to the NR terminal capability. At the same time, the NR terminal performs interference suppression according to the indication information of the NR base station, which can assist the NR terminal to perform interference suppression more specifically, reduce some blind detection operations of the NR terminal, and improve the reliability of downlink data reception. For example, explicit or implicit LTE neighbor cell CRS interference suppression enable control avoids the NR terminal from performing CRS detection in vain when NR and LTE do not coexist, saving NR terminal energy consumption. For another example, the delivery of LTE neighbor cell CRS information can assist NR terminals that do not support blind detection in interference detection, and also help NR terminals that support blind detection to reduce the complexity of search and calculation.

[0079] Some application examples are listed below. Assume that in the NR and LTE coexistence scenario, the 5G system bandwidth of the NR cell is B1, the 4G system bandwidth of the LTE neighbor cell 1 is B2, and the 4G system bandwidth of the LTE neighbor cell 2 is B3, where the frequency domain overlap of B1 and B2 is B12, and the frequency domain overlap of B1 and B3 is B13. The above information is known on the 5G NR network side. For the 5GNR terminal accessing the service cell, the NR base station will initiate a capability query to the NR terminal, and the NR terminal will report the LTE neighbor cell CRS interference suppression capability information to the NR base station, such as whether it supports the neighboring LTE neighbor cell CRS interference suppression. Assume that the NR terminal M reports support for capability 1 and capability 2, and assume that there are 5G NR and 4G LTE co-stations in this cell. When the NR base station configures the NR terminal M, it can send lte-CRS-ToMatchAround signaling to instruct the NR terminal to rate match the CRS time-frequency resources of the LTE in this cell, and implicitly instruct the NR terminal to blindly detect whether there is CRS interference in the neighboring cell and perform interference suppression. Or the NR base station indicates through additional RRC signaling that the NR terminal blindly detects whether there is CRS interference in the neighboring cell and performs interference suppression. In addition, the NR base station can also directly send the neighboring cell CRS configuration information to the NR terminal through RRC signaling, indicating that the NR terminal M is at the corresponding position and performs CRS interference detection and suppression.

[0080] Figure 2 A schematic diagram of a communication system 20 is shown in accordance with some embodiments of the present disclosure.

[0081] like Figure 2 As shown, the communication system 20 of this embodiment includes: an NR base station 30 and one or more NR terminals 40.

[0082] Figure 3 A schematic diagram of an NR base station 30 according to some embodiments of the present disclosure is shown.

[0083] like Figure 3 As shown, 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 execute the information transmission method performed by the NR base station in the aforementioned embodiment based on instructions stored in the memory 310.

[0084] For example, the NR base station receives the LTE neighboring cell CRS interference suppression capability information reported by the NR terminal.

[0085] For example, the NR base station sends indication information related to LTE neighbor cell CRS interference suppression to the NR terminal through RRC signaling, wherein the indication information includes one or more of the enabling control information for LTE neighbor cell CRS interference suppression and LTE neighbor cell CRS information.

[0086] For example, the NR base station sends indication information related to LTE neighbor cell CRS interference suppression to the NR terminal based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell where the NR terminal is currently located.

[0087] Figure 4 A schematic diagram of an NR terminal 40 according to some embodiments of the present disclosure is shown.

[0088] like Figure 4 As shown, 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 aforementioned embodiment based on instructions stored in the memory 410.

[0089] For example, the NR terminal reports the LTE neighboring cell CRS interference suppression capability information of the NR terminal to the NR base station.

[0090] For example, the NR terminal receives indication information related to LTE neighbor cell CRS interference suppression sent by the NR base station through RRC signaling, wherein the indication information includes one or more of the enabling control information for LTE neighbor cell CRS interference suppression or LTE neighbor cell CRS information.

[0091] For example, the NR terminal performs interference suppression according to the indication information. If the indication 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. If the indication 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 position corresponding to the LTE neighboring cell CRS information.

[0092] The memory 310, 410 may include, for example, a system memory, a fixed non-volatile storage medium, etc. The system memory may store, for example, an operating system, an application program, a boot loader, and other programs.

[0093] Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the information transmission method in the aforementioned embodiments.

[0094] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more non-transient computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer program code.

[0095] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, 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 generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0096] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0097] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0098] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. An information transmission method, characterized in that: include: The new radio interface NR terminal reports the long-term evolution LTE neighboring cell reference signal CRS interference suppression capability information of the NR terminal to the NR base station; The NR terminal receives indication information related to LTE neighbor cell CRS interference suppression sent by the NR base station through radio resource control RRC signaling, wherein the indication information includes enabling control information for LTE neighbor cell CRS interference suppression or one or more of LTE neighbor cell CRS information, wherein the LTE neighbor cell CRS information includes one or more of the following: LTE neighbor cell identification information, number of CRS ports, MBSFN subframe configuration information, central carrier and system bandwidth, time slot numbering information, used cyclic prefix, and duplex mode.

2. The method according to claim 1, characterized in that Also includes: The NR terminal performs interference suppression according to the indication information.

3. The method according to claim 2, characterized in that The NR terminal performs interference suppression according to the indication information, including: If the indication information includes enabling control information of 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 of LTE neighboring cell CRS interference suppression; If the indication information includes LTE neighbor cell CRS information, the NR terminal turns on LTE neighbor cell CRS interference suppression according to the LTE neighbor cell CRS information, and performs interference detection at a position corresponding to the LTE neighbor cell CRS information.

4. An information transmission method, characterized in that: include The NR base station receives the LTE neighboring cell CRS interference suppression capability information reported by the NR terminal; The NR base station sends indication information related to LTE neighbor cell CRS interference suppression to the NR terminal through RRC signaling, wherein the indication information includes enabling control information of LTE neighbor cell CRS interference suppression and one or more of LTE neighbor cell CRS information, wherein the LTE neighbor cell CRS information includes one or more of the following: LTE neighbor cell identification information, number of CRS ports, MBSFN subframe configuration information, center carrier and system bandwidth, time slot numbering information, used cyclic prefix, and duplex mode.

5. The method according to claim 4, characterized in that The NR base station sends indication information related to LTE neighbor cell CRS interference suppression to the NR terminal based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell where the NR terminal is currently located.

6. The method according to claim 5, characterized in that The NR base station sends, to the NR terminal, indication information related to 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 where the NR terminal is currently located, including: The NR base station determines, 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 currently located by the NR terminal, that the NR terminal supports LTE neighbor cell CRS interference suppression, and the LTE neighbor cell has CRS interference on the NR cell currently located by the NR terminal, and sends to the NR terminal enabling control information for turning on LTE neighbor cell CRS interference suppression and / or LTE neighbor cell CRS information; Or, the NR base station sends, to the NR terminal, enabling control information for disabling 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 where the NR terminal is currently located; Or, the NR base station determines, based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell currently located by the NR terminal, that the NR terminal supports LTE neighbor cell CRS interference suppression, and the LTE neighbor cell has no CRS interference to the NR cell currently located by the NR terminal, and sends enabling control information for disabling LTE neighbor cell CRS interference suppression to the NR terminal; Or, the NR base station determines, 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 where the NR terminal is currently located, that the NR terminal supports LTE neighbor cell CRS interference suppression based on blind detection, and the LTE neighbor cell has CRS interference on the NR cell where the NR terminal is currently located, and sends enabling control information and / or LTE neighbor cell CRS information for turning on LTE neighbor cell CRS interference suppression to the NR terminal; Or, the NR base station determines, based on the LTE neighbor cell CRS interference suppression capability information of the NR terminal and the LTE neighbor cell information of the NR cell where the NR terminal is currently located, that the NR terminal supports LTE neighbor cell CRS interference suppression, does not support LTE neighbor cell CRS interference suppression based on blind detection, and when the LTE neighbor cell has CRS interference on the NR cell where the NR terminal is currently located, the NR base station sends the LTE neighbor cell CRS information to the NR terminal.

7. The method according to any one of claims 1 to 6, characterized in that: The LTE neighboring cell CRS interference suppression capability information includes one or more of the following: Whether the NR terminal supports LTE neighboring cell CRS interference suppression; Whether the NR terminal supports LTE neighboring cell CRS interference suppression based on blind detection; When the new air interface subcarrier spacing is 30k, does the NR terminal support LTE neighboring cell CRS interference suppression? Whether the NR terminal supports LTE neighboring cell CRS interference suppression in an asynchronous system.

8. The method according to claim 7, characterized in that The value of whether the NR terminal supports LTE neighbor cell CRS interference suppression indicates whether the NR terminal supports LTE neighbor cell CRS interference suppression, the number of LTE neighbor cells that the NR terminal can support for LTE neighbor cell CRS interference suppression, or the number of carrier units that the NR terminal can support for simultaneous LTE neighbor cell CRS interference suppression in a carrier aggregation scenario.

9. The method according to any one of claims 1 to 6, characterized in that: The enabling control information of LTE neighbor cell CRS interference suppression is sent through lte-CRS-ToMatchAround signaling or other RRC signaling except lte-CRS-ToMatchAround signaling.

10. The method according to any one of claims 1 to 6, characterized in that: in, If the duplex mode is TDD, the LTE neighbor cell CRS information also includes uplink and downlink subframe ratio information.

11. The method according to any one of claims 1 to 6, characterized in that: When the indication information includes LTE neighboring cell CRS information, the NR base station sends indication information related to LTE neighboring cell CRS interference suppression to the NR terminal, including: The NR base station sends a list containing one or more arrays to the NR terminal through RRC signaling, where each array in the list indicates the CRS information of the LTE neighboring cell known to the network side that has CRS interference on the NR cell where the NR terminal is currently located, so as to instruct the NR terminal to turn on CRS interference suppression of the corresponding LTE neighboring cell; Alternatively, the NR base station sends release information of the entire list or a partial array to the NR terminal through RRC signaling to instruct the NR terminal to release the list or release a partial array in the list, and turn off the CRS interference suppression of the corresponding LTE neighboring cell.

12. A NR base station, comprising: Memory; as well as A processor coupled to the memory, the processor being configured to execute the method of any one of claims 4-11 based on instructions stored in the memory.

13. A NR terminal, comprising: Memory; as well as A processor coupled to the memory, the processor being configured to execute the method of any one of claims 1-3, 7-12 based on instructions stored in the memory.

14. A communication system comprising: The NR base station as claimed in claim 12; as well as The NR terminal as described in claim 13.

15. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein when the program is executed by a processor, the steps of the method according to any one of claims 1 to 11 are implemented.

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