WO2022205969A1 - 信息传输方法、基站、终端和通信系统 - Google Patents

信息传输方法、基站、终端和通信系统 Download PDF

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Publication number
WO2022205969A1
WO2022205969A1 PCT/CN2021/133548 CN2021133548W WO2022205969A1 WO 2022205969 A1 WO2022205969 A1 WO 2022205969A1 CN 2021133548 W CN2021133548 W CN 2021133548W WO 2022205969 A1 WO2022205969 A1 WO 2022205969A1
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Prior art keywords
terminal
lte
information
interference suppression
cell
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PCT/CN2021/133548
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English (en)
French (fr)
Inventor
吴径舟
杨姗
佘小明
陈鹏
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中国电信股份有限公司
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Application filed by 中国电信股份有限公司 filed Critical 中国电信股份有限公司
Priority to JP2023560603A priority Critical patent/JP2024511674A/ja
Priority to EP21934605.3A priority patent/EP4307737A1/en
Priority to US18/284,492 priority patent/US20240196198A1/en
Publication of WO2022205969A1 publication Critical patent/WO2022205969A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/005—Interference mitigation or co-ordination of intercell interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

Definitions

  • 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.
  • the dynamic spectrum sharing (Dynamic Spectrum Sharing, DSS) technology between 4G ( 4th , 4th generation) LTE (Long Term Evolution, long-term evolution) and 5G ( 5th , 5th generation) NR (New Radio, new air interface) is LTE terminals and NR terminals share the same spectrum, and the network side dynamically allocates resources to terminals for 4G or 5G transmission according to network load and other conditions.
  • DSS Dynamic Spectrum Sharing
  • CRS Cell Reference Signal
  • the terminal can report the interference suppression-based channel quality information to the NR base station through the CSI-RS measurement, estimation, and equalization algorithm.
  • the information includes the interference suppression of neighboring cells including CRS interference.
  • the scheduling of the NR base station based on the channel quality information matches the actual transmission quality.
  • the channel quality detection of the wireless channel by the NR terminal does not include the CRS interference of the adjacent cell, that is, the channel quality reported by the NR terminal to the base station at this time.
  • the information does not reflect the reception quality of the NR terminal under CRS interference, which reduces the accuracy of operations such as resource allocation and scheduling performed by the base station.
  • the NR terminal reports the CRS interference suppression capability information of the NR terminal's LTE neighboring cells 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.
  • Some embodiments of the present disclosure provide an information transmission method, including: a new air interface NR terminal reporting the long-term evolution LTE neighbor cell reference signal CRS interference suppression capability information of the NR terminal to an NR base station.
  • the NR terminal receives indication information related to LTE neighboring cell CRS interference suppression sent by the NR base station through radio resource control RRC signaling, where the indication information includes the use of LTE neighboring cell CRS interference suppression One or more of control information or LTE neighbor cell CRS information.
  • the NR terminal performs interference suppression according to the indication information.
  • the NR terminal performs interference suppression according to the indication information, including:
  • the NR terminal enables or disables the LTE neighbor cell CRS interference suppression according to the enable control information of the LTE neighbor cell CRS interference suppression;
  • the NR terminal enables 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.
  • Some embodiments of the present disclosure provide an information transmission method, which includes: an NR base station receiving information about an LTE neighboring cell CRS interference suppression capability reported by an NR terminal.
  • the NR base station sends, to the NR terminal through RRC signaling, indication information related to CRS interference suppression of LTE adjacent cells, where the indication information includes enabling control information for CRS interference suppression of LTE adjacent cells, One or more items of LTE neighbor cell CRS information.
  • the NR base station sends the LTE neighbor cell CRS interference 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 where the NR terminal is currently located. Suppress related instructions.
  • the NR base station sends the LTE neighbor cell CRS interference 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 where the NR terminal is currently located.
  • Suppression-related instructions including:
  • the NR base station determines that the NR terminal supports LTE adjacent cell CRS interference suppression and the LTE adjacent cell is based on the LTE adjacent cell CRS interference suppression capability information of the NR terminal and the LTE adjacent cell information of the NR cell where the NR terminal is currently located.
  • the NR base station determines that the NR terminal supports LTE adjacent cell CRS interference suppression and the LTE adjacent cell is based on the LTE adjacent cell CRS interference suppression capability information of the NR terminal and the LTE adjacent cell information of the NR cell where the NR terminal is currently located.
  • the NR base station sends, to the NR terminal, an instruction to disable the CRS interference suppression of the LTE adjacent cell according to the information of the LTE adjacent cell CRS interference suppression capability of the NR terminal and the LTE adjacent cell information of the NR cell where the NR terminal is currently located. can control information;
  • the NR base station determines that the NR terminal supports LTE adjacent cell CRS interference suppression, and the LTE When the neighboring cell has no CRS interference to the NR cell where the NR terminal is currently located, send the enabling control information for disabling the CRS interference suppression of the LTE neighboring cell to the NR terminal;
  • the NR base station determines that the NR terminal supports the CRS interference of LTE adjacent cells based on blind detection according to the information of the LTE adjacent cell CRS interference suppression capability of the NR terminal and the LTE adjacent cell information of the NR cell where the NR terminal is currently located. Suppressing and when the LTE neighboring cell has CRS interference to the NR cell where the NR terminal is currently located, sending the enabling control information and/or the LTE neighboring cell CRS information for enabling the LTE neighboring cell CRS interference suppression to the NR terminal;
  • the NR base station determines that the NR terminal supports the LTE adjacent cell CRS interference suppression, does not support the NR terminal according to the LTE adjacent cell CRS interference suppression capability information of the NR terminal and the LTE adjacent cell information of the NR cell where the NR terminal is currently located.
  • the LTE neighbor cell CRS interference suppression based on blind detection and the LTE neighbor cell has CRS interference to the NR cell where the NR terminal is currently located, the LTE neighbor cell CRS information is sent to the NR terminal.
  • the LTE neighbor cell CRS interference suppression capability information includes one or more of the following:
  • the NR terminal supports LTE neighbor cell CRS interference suppression based on blind detection
  • the NR terminal supports CRS interference suppression of LTE neighboring cells in an asynchronous system.
  • 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 In the carrier aggregation scenario, the number of carrier elements that can be supported by the NR terminal for simultaneous LTE neighbor cell CRS interference suppression.
  • the enabling control information for LTE neighbor cell CRS interference suppression is sent through lte-CRS-ToMatchAround signaling or other RRC signaling than lte-CRS-ToMatchAround signaling.
  • the LTE neighbor cell CRS information includes one or more of the following:
  • the CRS information of the LTE neighboring cells also includes the uplink and downlink subframe allocation information.
  • the NR base station when the indication information includes CRS information of LTE adjacent cells, the NR base station sends the indication information related to CRS interference suppression of LTE adjacent cells to the NR terminal, including:
  • the NR base station sends a list containing one or more arrays to the NR terminal through RRC signaling, and each array in the list indicates the LTE neighbor cell known by the network side that has CRS interference to the NR cell where the NR terminal is currently located.
  • CRS information to instruct the NR terminal to enable the CRS interference suppression of the corresponding LTE neighbor cell;
  • 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 part of the array in the list, and turn off the CRS interference suppression of the corresponding LTE neighbor cell.
  • Some embodiments of the present disclosure provide an NR base station, including: a memory; and a processor coupled to the memory, the processor being configured to execute the description in any one of the embodiments based on instructions stored in the memory Methods.
  • Some embodiments of the present disclosure provide an NR terminal, comprising: a memory; and a processor coupled to the memory, the processor being configured to execute the instructions described in any one of the embodiments based on instructions stored in the memory Methods.
  • Some embodiments of the present disclosure propose a communication system, including: an NR base station; and an NR terminal.
  • Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the steps of the method described in any one of the embodiments.
  • FIG. 1 shows a schematic flowchart of an interference suppression method 10 according to some embodiments of the present disclosure.
  • FIG. 2 shows a schematic diagram of a communication system 20 of some embodiments of the present disclosure.
  • FIG. 3 shows a schematic diagram of a base station 30 of some embodiments of the present disclosure.
  • FIG. 4 shows a schematic diagram of a terminal 40 according to some embodiments of the present disclosure.
  • FIG. 1 shows a schematic flowchart of an information transmission method according to some embodiments of the present disclosure.
  • the information transmission method 10 of this embodiment includes steps 110a-110b; as required, it may further include one or more of steps 120a, 120b, and 130.
  • step 110a the NR terminal reports the CRS interference suppression capability information of the LTE neighboring cell of the NR terminal to the NR base station.
  • the NR terminal performs channel quality detection of the wireless channel (if the LTE adjacent cell does not allocate downlink data transmission on the NR channel quality measurement reference signal, the detection does not include the CRS interference of the adjacent cell), and the NR terminal reports the NR terminal's information to the NR base station. CRS interference suppression capability information of LTE neighboring cells. Therefore, the auxiliary base station can accurately make decisions such as resource allocation and scheduling.
  • the NR base station initiates a capability query to the NR terminal, and the NR terminal reports its own LTE neighbor cell CRS interference suppression capability information to the NR base station.
  • LTE neighbor cell CRS interference suppression capability information Some examples of LTE neighbor cell CRS interference suppression capability information are listed below, but the present disclosure is not limited to these examples.
  • the LTE neighbor cell CRS interference suppression capability information includes, for example, one or more of the following:
  • NR terminal supports LTE neighbor cell CRS interference suppression (set as capability 1);
  • the NR terminal supports LTE neighbor cell CRS interference suppression based on blind detection (set as capability 2);
  • the CRS interference suppression of the NR terminal to the synchronous network may no longer be available in the asynchronous network.
  • the base station judges whether the NR terminal supports the CRS interference suppression of the LTE adjacent cells in the asynchronous network according to whether its own network belongs to the asynchronous network, and then chooses whether to report to the NR
  • the terminal sends the indication information related to the CRS interference suppression of the LTE neighboring cells.
  • the value of whether the NR terminal supports LTE adjacent cell CRS interference suppression indicates whether the NR terminal supports LTE adjacent cell CRS interference suppression, the number of LTE adjacent cells that the NR terminal can support for LTE adjacent cell CRS interference suppression, or in the carrier aggregation scenario.
  • 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 network side delivering the LTE neighbor cell CRS information.
  • step 110b the NR base station receives the LTE neighbor cell CRS interference suppression capability information reported by the NR terminal.
  • the NR base station sends, to the NR terminal through RRC (Radio Resource Control, Radio Resource Control) signaling, indication information related to CRS interference suppression in LTE adjacent cells, where the indication information includes the enabling of CRS interference suppression in LTE adjacent cells One or more items of control information and LTE neighbor cell CRS information.
  • RRC Radio Resource Control, Radio Resource Control
  • the NR base station sends, to the NR terminal, indication information related to the CRS interference suppression of the LTE adjacent cell according to the LTE adjacent cell CRS interference suppression capability information of the NR terminal and the LTE adjacent cell information of the NR cell where the NR terminal is currently located.
  • the enabling control information of the LTE neighbor cell CRS interference suppression is an instruction manner that explicitly instructs the NR terminal to turn on or off the LTE neighbor cell CRS interference suppression.
  • the function of the CRS information of the LTE neighboring cells also implicitly instructs the NR terminal to enable the indication mode of CRS interference suppression of the LTE neighboring cells. That is, if the NR terminal receives the LTE adjacent cell CRS information delivered by the NR base station, the NR terminal enables the LTE adjacent cell CRS interference suppression.
  • the NR base station sends the indication information related to the CRS interference suppression of the LTE neighboring cell 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 LTE cell where the NR terminal is currently located.
  • the disclosure is not limited to these examples.
  • the NR base station determines that the NR terminal supports CRS interference of the LTE adjacent cell according to the information of the LTE adjacent cell CRS interference suppression capability of the NR terminal and the LTE adjacent cell information of the LTE cell where the NR terminal is currently located. Suppression and when the LTE neighbor cell has CRS interference to the LTE cell where the NR terminal is currently located, send the enable control information and/or the LTE neighbor cell CRS information to the NR terminal to enable the LTE neighbor cell CRS interference suppression.
  • the NR base station may send the enabling control information to enable the LTE neighbor cell CRS interference suppression to the NR terminal, or the NR base station may send the LTE neighbor cell CRS information to the NR terminal, or the NR base station may simultaneously send the NR terminal to enable LTE neighbor cell CRS information.
  • Cell CRS interference suppression enable control information and LTE neighbor cell CRS information.
  • the NR base station may also send enabling control information for disabling CRS interference suppression of LTE neighboring cells to the NR terminal according to control requirements and control strategies. For example, the NR base station sends, to the NR terminal, an instruction to disable the CRS interference suppression of the LTE adjacent cell according to the information of the CRS interference suppression capability of the LTE adjacent cell of the NR terminal and the information of the LTE adjacent cell of the LTE cell where the NR terminal is currently located. Can control information.
  • the NR base station determines that the NR terminal supports CRS interference of the LTE adjacent cell according to the information of the LTE adjacent cell CRS interference suppression capability of the NR terminal and the LTE adjacent cell information of the LTE cell where the NR terminal is currently located.
  • the enabling control information for disabling the LTE neighbor cell CRS interference suppression is sent to the NR terminal.
  • the NR base station determines that the NR terminal supports LTE based on blind detection according to the CRS interference suppression capability information of the LTE adjacent cell of the NR terminal and the information of the LTE adjacent cell of the LTE cell where the NR terminal is currently located.
  • the adjacent cell CRS interference suppression and the LTE adjacent cell has CRS interference to the LTE cell where the NR terminal is currently located, send the enabling control information and/or the LTE adjacent cell CRS information to the NR terminal to enable the LTE adjacent cell CRS interference suppression .
  • the NR base station determines that the NR terminal supports CRS interference of the LTE adjacent cell according to the information of the LTE adjacent cell CRS interference suppression capability of the NR terminal and the LTE adjacent cell information of the LTE cell where the NR terminal is currently located.
  • the LTE neighbor cell CRS interference suppression based on blind detection is not supported, and the LTE neighbor cell has CRS interference to the LTE cell where the NR terminal is currently located, the LTE neighbor cell CRS information is sent to the NR terminal.
  • the enable control information of CRS interference suppression of LTE neighboring cells is sent through lte-CRS-ToMatchAround signaling or other RRC signaling except lte-CRS-ToMatchAround signaling.
  • the indication manner of the indication information related to the LTE adjacent cell CRS interference suppression of the LTE adjacent 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, each of which is in the list.
  • the number of arrays indicates the CRS information of the LTE neighboring cells known by 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 enable the CRS interference suppression of the corresponding LTE neighboring cell.
  • the list includes at most N arrays, where N is constant and its value can be preconfigured.
  • the NR base station sends the release information of the whole list or part of the array to the NR terminal through RRC signaling, to instruct the NR terminal to release the list or part of the array in the list, and to turn off the CRS interference suppression of the corresponding LTE neighbor cell.
  • 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 physical ID of the LTE neighbor cell. The remainder of ID modulo 6 (i.e.
  • v-Shift please refer to TS 36.211 6.10.1 for related definitions
  • the number of CRS ports such as 1 port/2 port/4 port
  • MBSFN Multicast Broadcast Single Frequency Network, multicast/multicast) Single frequency network
  • subframe configuration information center carrier and system bandwidth (such as RB (Resource Block, resource block) number)
  • RB Resource Block, resource block
  • time slot number information such as RB (Resource Block, resource block) number
  • 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, Frequency Division Duplexing) or TDD (Time Division Duplexing, Time Division Duplexing)
  • the duplex mode is TDD
  • LTE LTE
  • the adjacent cell CRS information also includes uplink and downlink subframe configuration information. Wherein, if the CRS port number and the MBSFN subframe configuration
  • the form of the slot number information is not limited to the illustrated example.
  • step 120b the NR terminal receives the indication information related to the CRS interference suppression of the LTE neighboring cell sent by the NR base station through RRC signaling.
  • step 130 the NR terminal performs interference suppression according to the indication information.
  • the NR terminal if the indication information includes the enabling control information for the CRS interference suppression of the LTE adjacent cells, the NR terminal enables or disables the CRS interference suppression for the LTE adjacent cells according to the enabling control information for the CRS interference suppression of the LTE adjacent cells; if the indication information includes LTE neighbor cell CRS information, the NR terminal enables LTE neighbor cell CRS interference suppression according to the LTE neighbor cell CRS information, and performs interference detection at the position corresponding to the LTE neighbor cell CRS information.
  • the NR terminal may utilize serial interference cancellation techniques for interference mitigation. Specifically, first, through the pre-equalization detection algorithm, the signal with the highest strength is detected from the received original signal, and it is determined whether the detected signal is the desired signal. If so, stop the detection, if not, from the original signal. This signal as interference is subtracted and the next detection is started, and so on, until the desired signal is detected.
  • the NR terminal reports the CRS interference suppression capability information of the NR terminal's LTE neighboring cells 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 to accurately perform, for example, resource allocation and scheduling. etc. decision.
  • the NR base station sends the indication information related to the CRS interference suppression of the LTE adjacent cell to the NR terminal according to the information of the LTE adjacent cell CRS interference suppression capability of the NR terminal and the LTE adjacent cell information of the LTE cell where the NR terminal is currently located, so that the NR base station can improve the CRS interference suppression capability of the NR terminal according to the capability of the NR terminal.
  • the LTE neighbor cell CRS interference suppression of the NR terminal is controlled in a targeted manner.
  • the NR terminal performs interference suppression according to the instruction information of the NR base station, which can assist the NR terminal to perform more targeted interference suppression, reduce some blind detection operations of the NR terminal, and improve the reliability of downlink data reception.
  • explicit or implicit LTE neighbor cell CRS interference suppression enable control can prevent NR terminals from performing CRS detection in vain when NR and LTE non-coexistence scenarios, and save energy consumption of NR terminals.
  • the issuance of CRS information of LTE neighboring cells can assist NR terminals that do not support blind detection to perform interference detection, and also help NR terminals that support blind detection to reduce the complexity of search and calculation.
  • the 5G system bandwidth of the NR cell is B1
  • the 4G system bandwidth of the LTE neighbor cell 1 is B2
  • the 4G system bandwidth of the LTE neighbor cell 2 is B3, where the frequency domain overlap between B1 and B2 is The overlapping part of B12, B1 and B3 in the frequency domain is B13.
  • the above information is known on the 5G NR network side.
  • 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 to support adjacent cells. LTE neighbor cell CRS interference suppression, etc.
  • the NR base station can issue lte-CRS-ToMatchAround signaling when configuring NR terminal M to instruct the NR terminal to respond to the CRS of LTE in this cell.
  • the time-frequency resources are rate-matched, and the NR terminal is implicitly instructed to blindly detect whether there is CRS interference in neighboring cells and perform interference suppression.
  • the NR base station displays and instructs the NR terminal through additional RRC signaling to blindly detect whether there is CRS interference in neighboring cells and perform interference suppression.
  • the NR base station can also directly send the neighboring cell CRS configuration information to the NR terminal through RRC signaling, instructing the NR terminal M to be at the corresponding position and to perform CRS interference detection and suppression.
  • FIG. 2 shows a schematic diagram of a communication system 20 of some embodiments of the present disclosure.
  • the communication system 20 of this embodiment includes: an NR base station 30 and one or more NR terminals 40 .
  • FIG. 3 shows a schematic diagram of an NR base station 30 of some embodiments of the present disclosure.
  • 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, based on the instructions stored in the memory 310 , execute the steps in the foregoing embodiments.
  • Information transmission method performed by an NR base station.
  • the NR base station receives the LTE neighbor cell CRS interference suppression capability information reported by the NR terminal.
  • the NR base station sends, to the NR terminal through RRC signaling, indication information related to the CRS interference suppression of the LTE adjacent cells, where the indication information includes the enabling control information of the CRS interference suppression of the LTE adjacent cells, and the CRS information of the LTE adjacent cells. one or more of the.
  • the NR base station sends, to the NR terminal, indication information related to the CRS interference suppression of the LTE adjacent cell according to the LTE adjacent cell CRS interference suppression capability information of the NR terminal and the LTE adjacent cell information of the NR cell where the NR terminal is currently located.
  • FIG. 4 shows a schematic diagram of an NR terminal 40 of some embodiments of the present disclosure.
  • the NR terminal 40 of this embodiment includes: a memory 410 ; and a processor 420 coupled to the memory 410 , the processor 420 is configured to, based on the instructions stored in the memory 410 , execute the steps in the foregoing embodiments.
  • Information transmission method performed by an NR terminal.
  • the NR terminal reports the CRS interference suppression capability information of the LTE neighboring cell of the NR terminal to the NR base station.
  • the NR terminal receives the indication information related to the CRS interference suppression of the LTE adjacent cells sent by the NR base station through RRC signaling, where the indication information includes the enabling control information of the CRS interference suppression of the LTE adjacent cells or the CRS information of the LTE adjacent cells one or more of the .
  • 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 enables or disables 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 neighbor cell CRS information, the NR terminal enables 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.
  • the memories 310 and 410 may include, for example, a system memory, a fixed non-volatile storage medium, and the like.
  • the system memory stores, for example, an operating system, an application program, a boot loader (Boot Loader), and other programs.
  • Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the steps of the information transmission method in the foregoing embodiments.
  • embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, 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 media having computer program code embodied therein, including but not limited to disk storage, CD-ROM, optical storage, etc. .
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本公开提出一种信息传输方法、基站、终端和通信系统，涉及移动通信领域。在本公开中，NR终端向NR基站上报本NR终端的LTE邻小区CRS干扰抑制能力信息，NR基站接收NR终端上报的LTE邻小区CRS干扰抑制能力信息，以辅助基站准确地进行决策。

Description

信息传输方法、基站、终端和通信系统
相关申请的交叉引用
本申请是以CN申请号为202110339566.7，申请日为2021年03月30日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及移动通信领域，特别涉及一种信息传输方法、基站、终端和通信系统。
背景技术
4G(4 th，第4代)LTE(Long Term Evolution，长期演进)与5G(5 th，第5代)NR(New Radio，新空口)间的动态频谱共享(Dynamic Spectrum Sharing，DSS)技术是LTE终端与NR终端共用相同的频谱，并由网络侧根据网络负载等情况动态的为终端分配资源进行4G或5G的传输。
工作在DSS模式下的邻小区4G LTE系统，其常开且占用固定资源的下行小区参考信号(Cell Reference Signal，CRS)，会对本小区使用5G的NR终端的接收造成较大的干扰。
支持邻小区干扰消除相关能力的NR终端，当LTE邻小区在NR小区的信道质量测量参考信号(即，CSI-RS(Channel State Information Reference Signal，信道状态信息-参考信号))时频资源上，调度了下行数据传输时，终端可以通过对CSI-RS的测量、估计、均衡算法，向NR基站上报基于干扰抑制的信道质量信息，该信息包含了对CRS干扰在内的邻小区干扰抑制。此时NR基站基于此信道质量信息的调度，与实际的传输质量相匹配。
然而，若LTE邻小区在NR信道质量测量参考信号上，没有分配下行数据传输，NR终端对无线信道的信道质量检测并不包括邻小区CRS干扰，即，此时NR终端上报给基站的信道质量信息并不能反映CRS干扰下NR终端的接收质量，导致基站进行资源分配与调度等操作的准确性降低。
发明内容
本公开实施例，NR终端向NR基站上报本NR终端的LTE邻小区CRS干扰抑制能力信息，NR基站接收NR终端上报的LTE邻小区CRS干扰抑制能力信息，以辅助基站准确地进行决策。
本公开一些实施例提出一种信息传输方法，包括：新空口NR终端向NR基站上报本NR终端的长期演进LTE邻小区小区参考信号CRS干扰抑制能力信息。
在一些实施例中，所述NR终端接收所述NR基站通过无线资源控制RRC信令发送的LTE邻小区CRS干扰抑制相关的指示信息，其中，所述指示信息包括LTE邻小区CRS干扰抑制的使能控制信息或LTE邻小区CRS信息中的一项或多项。
在一些实施例中，所述NR终端根据所述指示信息进行干扰抑制。
在一些实施例中，所述NR终端根据所述指示信息进行干扰抑制，包括：
如果所述指示信息包括LTE邻小区CRS干扰抑制的使能控制信息，所述NR终端根据所述LTE邻小区CRS干扰抑制的使能控制信息开启或关闭LTE邻小区CRS干扰抑制；
如果所述指示信息包括LTE邻小区CRS信息，所述NR终端根据所述LTE邻小区CRS信息开启LTE邻小区CRS干扰抑制，并在所述LTE邻小区CRS信息相应的位置进行干扰检测。
本公开一些实施例提出一种信息传输方法，包括：NR基站接收NR终端上报的LTE邻小区CRS干扰抑制能力信息。
在一些实施例中，所述NR基站通过RRC信令向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息，其中，所述指示信息包括LTE邻小区CRS干扰抑制的使能控制信息、LTE邻小区CRS信息中的一项或多项。
在一些实施例中，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息。
在一些实施例中，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息，包括：
所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，确定所述NR终端支持LTE邻小区CRS干扰抑 制、且LTE邻小区对所述NR终端当前所在NR小区有CRS干扰时，向所述NR终端发送开启LTE邻小区CRS干扰抑制的使能控制信息和/或LTE邻小区CRS信息；
或，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，向所述NR终端发送关闭LTE邻小区CRS干扰抑制的使能控制信息；
或，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，确定所述NR终端支持LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端当前所在NR小区没有CRS干扰时，向所述NR终端发送关闭LTE邻小区CRS干扰抑制的使能控制信息；
或，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，确定所述NR终端支持基于盲检测的LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端当前所在NR小区有CRS干扰时，向所述NR终端发送开启LTE邻小区CRS干扰抑制的使能控制信息和/或LTE邻小区CRS信息；
或，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，确定所述NR终端支持LTE邻小区CRS干扰抑制、不支持基于盲检测的LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端当前所在NR小区有CRS干扰时，向所述NR终端发送LTE邻小区CRS信息。
在一些实施例中，所述LTE邻小区CRS干扰抑制能力信息包括以下中的一项或多项：
NR终端是否支持LTE邻小区CRS干扰抑制；
NR终端是否支持基于盲检测的LTE邻小区CRS干扰抑制；
当新空口子载波间隔为30k时，NR终端是否支持LTE邻小区CRS干扰抑制；
NR终端是否支持异步系统下的LTE邻小区CRS干扰抑制。
在一些实施例中，NR终端是否支持LTE邻小区CRS干扰抑制的数值表示NR终端是否支持LTE邻小区CRS干扰抑制、NR终端所能支持的进行LTE邻小区CRS干扰抑制的LTE邻小区数量、或者载波聚合场景下NR终端所能支持的同时进行LTE邻小区CRS干扰抑制的载波单元的数量。
在一些实施例中，LTE邻小区CRS干扰抑制的使能控制信息通过lte-CRS- ToMatchAround信令或除lte-CRS-ToMatchAround信令之外的其他RRC信令发送。
在一些实施例中，LTE邻小区CRS信息包括以下中的一项或多项：
对所述NR终端当前所在NR小区有CRS干扰的LTE邻小区的标识信息、CRS端口数、MBSFN子帧配置信息、中心载波和系统带宽、时隙编号信息、使用的循环前缀、双工方式；
其中，若双工方式为TDD，LTE邻小区CRS信息还包括上下行子帧配比信息。
在一些实施例中，当所述指示信息包括LTE邻小区CRS信息时，所述NR基站向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息，包括：
NR基站通过RRC信令向NR终端发送包含一个或多个数组的列表，所述列表中的每个数组指示网络侧已知的对所述NR终端当前所在NR小区有CRS干扰的LTE邻小区的CRS信息，以指示所述NR终端开启相应LTE邻小区的CRS干扰抑制；
或者，NR基站通过RRC信令向NR终端发送整个列表或部分数组的释放信息，以指示NR终端释放所述列表或者释放所述列表中的部分数组，并关闭相应LTE邻小区的CRS干扰抑制。
本公开一些实施例提出一种NR基站，包括：存储器；以及耦接至所述存储器的处理器，所述处理器被配置为基于存储在所述存储器中的指令，执行任一个实施例所述的方法。
本公开一些实施例提出一种NR终端，包括：存储器；以及耦接至所述存储器的处理器，所述处理器被配置为基于存储在所述存储器中的指令，执行任一个实施例所述的方法。
本公开一些实施例提出一种通信系统，包括：NR基站；以及NR终端。
本公开一些实施例提出一种非瞬时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现任一个实施例所述方法的步骤。
附图说明
下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍。根据下面参照附图的详细描述，可以更加清楚地理解本公开。
显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1示出本公开一些实施例的干扰抑制方法10的流程示意图。
图2示出本公开一些实施例的通信系统20的示意图。
图3示出本公开一些实施例的基站30的示意图。
图4示出本公开一些实施例的终端40的示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述。
图1示出本公开一些实施例的信息传输方法的流程示意图。
如图1所示，该实施例的信息传输方法10包括步骤110a-110b；根据需要，还可以包括步骤120a、120b、130中的一个或多个步骤。
在步骤110a，NR终端向NR基站上报本NR终端的LTE邻小区CRS干扰抑制能力信息。
NR终端进行无线信道的信道质量检测(若LTE邻小区在NR信道质量测量参考信号上没有分配下行数据传输，该检测并不包括邻小区CRS干扰)，同时NR终端向NR基站上报本NR终端的LTE邻小区CRS干扰抑制能力信息。从而，辅助基站准确地进行资源分配与调度等决策。
例如，NR基站向NR终端发起能力查询，NR终端向NR基站上报自己的LTE邻小区CRS干扰抑制能力信息。
下面列举一些LTE邻小区CRS干扰抑制能力信息的示例，但是，本公开并不局限于这些示例。
在一些实施例中，LTE邻小区CRS干扰抑制能力信息例如包括以下中的一项或多项：
NR终端是否支持LTE邻小区CRS干扰抑制(设为能力1)；
NR终端是否支持基于盲检测的LTE邻小区CRS干扰抑制(设为能力2)；
当新空口子载波间隔为30k时，NR终端是否支持LTE邻小区CRS干扰抑制(设为能力3)；
NR终端是否支持异步系统下的LTE邻小区CRS干扰抑制(设为能力4)。
其中，网络系统有异步系统和同步系统两种实现方式，在实际网络系统中，NR终 端对同步网络的CRS干扰抑制可能在异步网络中不再可用。当NR终端上报了是否支持异步系统下的LTE邻小区CRS干扰抑制后，基站根据自身网络是否属于异步网络，判断NR终端是否支持该异步网络下的LTE邻小区CRS干扰抑制，进而选择是否向NR终端发送LTE邻小区CRS干扰抑制相关的指示信息。
其中，NR终端是否支持LTE邻小区CRS干扰抑制的数值表示NR终端是否支持LTE邻小区CRS干扰抑制、NR终端所能支持的进行LTE邻小区CRS干扰抑制的LTE邻小区数量、或者载波聚合场景下NR终端所能支持的同时进行LTE邻小区CRS干扰抑制的载波单元(component carrier)的数量。
其中，所谓基于盲检测的LTE邻小区CRS干扰抑制，是指NR终端可以不需要网络侧下发LTE邻小区CRS信息，就能够进行LTE邻小区CRS干扰检测和抑制。
在步骤110b，NR基站接收NR终端上报的LTE邻小区CRS干扰抑制能力信息。
在步骤120a，NR基站通过RRC(Radio Resource Control，无线资源控制)信令向NR终端发送LTE邻小区CRS干扰抑制相关的指示信息，其中，所述指示信息包括LTE邻小区CRS干扰抑制的使能控制信息、LTE邻小区CRS信息中的一项或多项。
所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息。
其中，LTE邻小区CRS干扰抑制的使能控制信息是显式的指示NR终端开打或关闭LTE邻小区CRS干扰抑制的指示方式。LTE邻小区CRS信息的作用除了将LTE邻小区的CRS信息指示给NR终端，还隐式的指示NR终端开打LTE邻小区CRS干扰抑制的指示方式。也即，如果NR终端接收到NR基站下发的LTE邻小区CRS信息，NR终端打开LTE邻小区CRS干扰抑制。
下面列举一些NR基站根据NR终端的LTE邻小区CRS干扰抑制能力信息和NR终端当前所在LTE小区的LTE邻小区信息，向NR终端发送LTE邻小区CRS干扰抑制相关的指示信息的示例，但是，本公开并不局限于这些示例。
在一些实施例中，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在LTE小区的LTE邻小区信息，确定所述NR终端支持LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端当前所在LTE小区有CRS干扰时，向所述NR终端发送开启LTE邻小区CRS干扰抑制的使能控制信息和/或LTE邻小区 CRS信息。也即，NR基站可以向NR终端发送开启LTE邻小区CRS干扰抑制的使能控制信息，或者，NR基站可以向NR终端发送LTE邻小区CRS信息，或者，NR基站向NR终端同时发送开启LTE邻小区CRS干扰抑制的使能控制信息和LTE邻小区CRS信息。
在一些实施例中，NR终端开启LTE邻小区CRS干扰抑制之后，NR基站根据控制需要和控制策略，还可以向NR终端发送关闭LTE邻小区CRS干扰抑制的使能控制信息。例如，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在LTE小区的LTE邻小区信息，向所述NR终端发送关闭LTE邻小区CRS干扰抑制的使能控制信息。
在一些实施例中，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在LTE小区的LTE邻小区信息，确定所述NR终端支持LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端当前所在LTE小区没有CRS干扰时，向所述NR终端发送关闭LTE邻小区CRS干扰抑制的使能控制信息。
在一些实施例中，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在LTE小区的LTE邻小区信息，确定所述NR终端支持基于盲检测的LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端当前所在LTE小区有CRS干扰时，向所述NR终端发送开启LTE邻小区CRS干扰抑制的使能控制信息和/或LTE邻小区CRS信息。
在一些实施例中，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在LTE小区的LTE邻小区信息，确定所述NR终端支持LTE邻小区CRS干扰抑制、不支持基于盲检测的LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端当前所在LTE小区有CRS干扰时，向所述NR终端发送LTE邻小区CRS信息。
LTE邻小区CRS干扰抑制的使能控制信息通过lte-CRS-ToMatchAround信令或除lte-CRS-ToMatchAround信令之外的其他RRC信令发送。
LTE邻小区CRS信息类型的LTE邻小区CRS干扰抑制相关的指示信息的指示方式包括：NR基站通过RRC信令向NR终端发送包含一个或多个数组的列表(list)，所述列表中的每个数组指示网络侧已知的对所述NR终端当前所在LTE小区有CRS干扰的LTE邻小区的CRS信息，以隐式地指示所述NR终端开启相应LTE邻小区的CRS干扰抑制。列表最多包括N个数组，N是常量且其数值可以预先配置。NR基站通过RRC信令 向NR终端发送整个列表或部分数组的释放信息，以指示NR终端释放所述列表或者释放所述列表中的部分数组，并关闭相应LTE邻小区的CRS干扰抑制。
LTE邻小区CRS信息包括以下中的一项或多项：对NR终端当前所在LTE小区有CRS干扰的LTE邻小区的如下信息：标识信息(如LTE邻小区的物理ID，或者LTE邻小区的物理ID模6的余数(即v-Shift，相关定义可参考TS 36.211 6.10.1)、CRS端口数(如1端口/2端口/4端口)、MBSFN(Multicast Broadcast Single Frequency Network，多播/组播单频网络)子帧配置信息、中心载波和系统带宽(如RB(Resource Block，资源块)数量)、时隙编号信息、使用的循环前缀(Cycl ic Prefix,CP，如normal CP(一般循环前缀)或extended CP(扩展循环前缀)、双工方式(如FDD(Frequency Divi sion Duplexing，频分双工)或TDD(Time Division Duplexing，时分双工))；其中，若双工方式为TDD，LTE邻小区CRS信息还包括上下行子帧配比信息。其中，如果CRS端口数和MBSFN子帧配置信息没有发送，此时NR终端应默认该LTE邻小区CRS的相关字段配置等同于与本小区共址的LTE CRS配置。
时隙编号信息的一种示例性的方式为：当前NR小区时隙号Ns,f与邻LTE小区时隙号Ns的对应关系，设置该字段为一个0～19的整数k，当NR小区子载波间隔为30kHz时，Ns＝(Ns,f+k)％20；当NR小区子载波间隔为15kHz时，Ns＝(Ns,f×2+k)％20，此时的LTE的Ns时隙与NR的Ns,f时隙的前7个符号时域对齐。时隙编号信息的形式不限于所举示例。
在步骤120b，NR终端接收NR基站通过RRC信令发送的LTE邻小区CRS干扰抑制相关的指示信息。
在步骤130，NR终端根据指示信息进行干扰抑制。
在一些实施例中，如果指示信息包括LTE邻小区CRS干扰抑制的使能控制信息，NR终端根据LTE邻小区CRS干扰抑制的使能控制信息开启或关闭LTE邻小区CRS干扰抑制；如果指示信息包括LTE邻小区CRS信息，NR终端根据LTE邻小区CRS信息开启LTE邻小区CRS干扰抑制，并在LTE邻小区CRS信息相应的位置进行干扰检测。
在一些实施例中，NR终端可利用串行干扰消除技术进行干扰抑制。具体来说，首先通过预均衡检测算法，从接收到的原始信号中检测出强度最大的信号，判断检测出的该信号是否是所需信号，如果是，停止检测，如果否，从原始信号中减去作为干扰的该信号，并开始下一次检测，如此循环，直至检测出所需信号。
上述实施例，NR终端向NR基站上报本NR终端的LTE邻小区CRS干扰抑制能力信息，NR基站接收NR终端上报的LTE邻小区CRS干扰抑制能力信息，以辅助基站准确地进行例如资源分配与调度等决策。NR基站根据NR终端的LTE邻小区CRS干扰抑制能力信息和NR终端当前所在LTE小区的LTE邻小区信息，向NR终端发送LTE邻小区CRS干扰抑制相关的指示信息，使得NR基站根据NR终端能力更有针对性地对NR终端的LTE邻小区CRS干扰抑制进行控制。同时NR终端根据NR基站的指示信息进行干扰抑制，可以辅助NR终端更有针对性地进行干扰抑制，减少NR终端一些盲目性的检测操作，提升下行数据接收的可靠性。例如，显式或隐式的LTE邻小区CRS干扰抑制使能控制，避免NR终端在NR和LTE非共存场景时，徒劳的进行CRS检测，节省NR终端能耗。又例如，LTE邻小区CRS信息的下发可以辅助不支持盲检测的NR终端进行干扰检测，同时也有助于支持盲检测的NR终端减少搜索和计算的复杂度。
下面列举一些应用例。假设在NR和LTE共存场景中，NR小区5G系统带宽为B1，LTE邻小区1的4G系统带宽为B2，LTE邻小区2的4G系统带宽为B3，其中B1与B2的频域交叠部分为B12，B1与B3的频域交叠部分为B13。上述信息在5G NR网络侧已知，对于接入服务小区的5GNR终端，NR基站将向NR终端发起能力查询，NR终端将向NR基站上报LTE邻小区CRS干扰抑制能力信息，如是否支持邻区LTE邻小区CRS干扰抑制等。假设NR终端M上报支持能力1和能力2，假设本小区中存在5G NR与4G LTE共站，NR基站配置NR终端M时可以下发lte-CRS-ToMatchAround信令指示NR终端对本小区LTE的CRS时频资源进行速率匹配，同时隐式指示NR终端盲检测是否存在邻区CRS干扰并进行干扰抑制。或者NR基站通过额外的RRC信令显示指示NR终端盲检测是否存在邻区CRS干扰并进行干扰抑制。此外，NR基站还可以通过RRC信令直接将邻区CRS配置信息直接发给NR终端，指示NR终端M在对应的位置并进行CRS干扰检测和抑制。
图2示出本公开一些实施例的通信系统20的示意图。
如图2所示，该实施例的通信系统20包括：NR基站30和一个或多个NR终端40。
图3示出本公开一些实施例的NR基站30的示意图。
如图3所示，该实施例的NR基站30包括：存储器310；以及耦接至存储器310的处理器320，处理器320被配置为基于存储在存储器310中的指令，执行前述实施 例中的NR基站执行的信息传输方法。
例如，NR基站接收NR终端上报的LTE邻小区CRS干扰抑制能力信息。
例如，NR基站通过RRC信令向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息，其中，所述指示信息包括LTE邻小区CRS干扰抑制的使能控制信息、LTE邻小区CRS信息中的一项或多项。
例如，NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息。
图4示出本公开一些实施例的NR终端40的示意图。
如图4所示，该实施例的NR终端40包括：存储器410；以及耦接至存储器410的处理器420，处理器420被配置为基于存储在存储器410中的指令，执行前述实施例中的NR终端执行的信息传输方法。
例如，NR终端向NR基站上报本NR终端的LTE邻小区CRS干扰抑制能力信息。
例如，NR终端接收所述NR基站通过RRC信令发送的LTE邻小区CRS干扰抑制相关的指示信息，其中，所述指示信息包括LTE邻小区CRS干扰抑制的使能控制信息或LTE邻小区CRS信息中的一项或多项。
例如，NR终端根据所述指示信息进行干扰抑制。如果所述指示信息包括LTE邻小区CRS干扰抑制的使能控制信息，所述NR终端根据所述LTE邻小区CRS干扰抑制的使能控制信息开启或关闭LTE邻小区CRS干扰抑制。如果所述指示信息包括LTE邻小区CRS信息，所述NR终端根据所述LTE邻小区CRS信息开启LTE邻小区CRS干扰抑制，并在所述LTE邻小区CRS信息相应的位置进行干扰检测。
其中，存储器310，410例如可以包括系统存储器、固定非易失性存储介质等。系统存储器例如存储有操作系统、应用程序、引导装载程序(Boot Loader)以及其他程序等。
本公开一些实施例提出一种非瞬时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现前述实施例中的信息传输方法的步骤。
本领域内的技术人员应当明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机程序代 码的非瞬时性计算机可读存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解为可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述仅为本公开的较佳实施例，并不用以限制本公开，凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (17)

  1. 一种信息传输方法，包括：
    新空口NR终端向NR基站上报本NR终端的长期演进LTE邻小区小区参考信号CRS干扰抑制能力信息。
  2. 根据权利要求1所述的方法，还包括：
    所述NR终端接收所述NR基站通过无线资源控制RRC信令发送的LTE邻小区CRS干扰抑制相关的指示信息，其中，所述指示信息包括LTE邻小区CRS干扰抑制的使能控制信息或LTE邻小区CRS信息中的一项或多项。
  3. 根据权利要求2所述的方法，还包括：
    所述NR终端根据所述指示信息进行干扰抑制。
  4. 根据权利要求3所述的方法，其中，所述NR终端根据所述指示信息进行干扰抑制，包括：
    如果所述指示信息包括LTE邻小区CRS干扰抑制的使能控制信息，所述NR终端根据所述LTE邻小区CRS干扰抑制的使能控制信息开启或关闭LTE邻小区CRS干扰抑制；
    如果所述指示信息包括LTE邻小区CRS信息，所述NR终端根据所述LTE邻小区CRS信息开启LTE邻小区CRS干扰抑制，并在所述LTE邻小区CRS信息相应的位置进行干扰检测。
  5. 一种信息传输方法，包括：
    NR基站接收NR终端上报的LTE邻小区CRS干扰抑制能力信息。
  6. 根据权利要求5所述的方法，还包括：
    所述NR基站通过RRC信令向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息，其中，所述指示信息包括LTE邻小区CRS干扰抑制的使能控制信息、LTE邻 小区CRS信息中的一项或多项。
  7. 根据权利要求6所述的方法，其中，
    所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息。
  8. 根据权利要求7所述的方法，其中，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息，包括：
    所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，确定所述NR终端支持LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端当前所在NR小区有CRS干扰时，向所述NR终端发送开启LTE邻小区CRS干扰抑制的使能控制信息和/或LTE邻小区CRS信息；
    或，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，向所述NR终端发送关闭LTE邻小区CRS干扰抑制的使能控制信息；
    或，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，确定所述NR终端支持LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端当前所在NR小区没有CRS干扰时，向所述NR终端发送关闭LTE邻小区CRS干扰抑制的使能控制信息；
    或，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，确定所述NR终端支持基于盲检测的LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端当前所在NR小区有CRS干扰时，向所述NR终端发送开启LTE邻小区CRS干扰抑制的使能控制信息和/或LTE邻小区CRS信息；
    或，所述NR基站根据所述NR终端的LTE邻小区CRS干扰抑制能力信息和所述NR终端当前所在NR小区的LTE邻小区信息，确定所述NR终端支持LTE邻小区CRS干扰抑制、不支持基于盲检测的LTE邻小区CRS干扰抑制、且LTE邻小区对所述NR终端 当前所在NR小区有CRS干扰时，向所述NR终端发送LTE邻小区CRS信息。
  9. 根据权利要求1-8任一项所述的方法，其中，所述LTE邻小区CRS干扰抑制能力信息包括以下中的一项或多项：
    NR终端是否支持LTE邻小区CRS干扰抑制；
    NR终端是否支持基于盲检测的LTE邻小区CRS干扰抑制；
    当新空口子载波间隔为30k时，NR终端是否支持LTE邻小区CRS干扰抑制；
    NR终端是否支持异步系统下的LTE邻小区CRS干扰抑制。
  10. 根据权利要求9所述的方法，其中，
    NR终端是否支持LTE邻小区CRS干扰抑制的数值表示NR终端是否支持LTE邻小区CRS干扰抑制、NR终端所能支持的进行LTE邻小区CRS干扰抑制的LTE邻小区数量、或者载波聚合场景下NR终端所能支持的同时进行LTE邻小区CRS干扰抑制的载波单元的数量。
  11. 根据权利要求2-4，6-8任一项所述的方法，其中，
    LTE邻小区CRS干扰抑制的使能控制信息通过lte-CRS-ToMatchAround信令或除lte-CRS-ToMatchAround信令之外的其他RRC信令发送。
  12. 根据权利要求2-4，6-8任一项所述的方法，其中，LTE邻小区CRS信息包括以下中的一项或多项：
    对所述NR终端当前所在NR小区有CRS干扰的LTE邻小区的标识信息、CRS端口数、MBSFN子帧配置信息、中心载波和系统带宽、时隙编号信息、使用的循环前缀、双工方式；
    其中，若双工方式为TDD，LTE邻小区CRS信息还包括上下行子帧配比信息。
  13. 根据权利要求2-4，6-8任一项所述的方法，其中，当所述指示信息包括LTE邻小区CRS信息时，所述NR基站向所述NR终端发送LTE邻小区CRS干扰抑制相关的指示信息，包括：
    NR基站通过RRC信令向NR终端发送包含一个或多个数组的列表，所述列表中的每个数组指示网络侧已知的对所述NR终端当前所在NR小区有CRS干扰的LTE邻小区的CRS信息，以指示所述NR终端开启相应LTE邻小区的CRS干扰抑制；
    或者，NR基站通过RRC信令向NR终端发送整个列表或部分数组的释放信息，以指示NR终端释放所述列表或者释放所述列表中的部分数组，并关闭相应LTE邻小区的CRS干扰抑制。
  14. 一种NR基站，包括：
    存储器；以及
    耦接至所述存储器的处理器，所述处理器被配置为基于存储在所述存储器中的指令，执行权利要求5-13中任一项所述的方法。
  15. 一种NR终端，包括：
    存储器；以及
    耦接至所述存储器的处理器，所述处理器被配置为基于存储在所述存储器中的指令，执行权利要求1-4、9-12中任一项所述的方法。
  16. 一种通信系统，包括：
    权利要求14所述的NR基站；以及
    权利要求15所述的NR终端。
  17. 一种非瞬时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现权利要求1-13中任一项所述方法的步骤。
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CN110602008A (zh) * 2018-06-13 2019-12-20 中兴通讯股份有限公司 一种小区间干扰抑制方法、设备、装置和计算机存储介质
CN111819897A (zh) * 2018-03-08 2020-10-23 高通股份有限公司 用于频谱共享的干扰管理
CN112004232A (zh) * 2019-05-27 2020-11-27 中兴通讯股份有限公司 一种lte和nr资源共享方法及装置

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CN108934005A (zh) * 2017-05-27 2018-12-04 维沃移动通信有限公司 一种能力信息上报方法、相关设备和系统
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