WO2018202180A1 - 一种信息传输的方法及装置 - Google Patents

一种信息传输的方法及装置 Download PDF

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Publication number
WO2018202180A1
WO2018202180A1 PCT/CN2018/085736 CN2018085736W WO2018202180A1 WO 2018202180 A1 WO2018202180 A1 WO 2018202180A1 CN 2018085736 W CN2018085736 W CN 2018085736W WO 2018202180 A1 WO2018202180 A1 WO 2018202180A1
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WO
WIPO (PCT)
Prior art keywords
terminal
downlink control
control information
information
capability indication
Prior art date
Application number
PCT/CN2018/085736
Other languages
English (en)
French (fr)
Inventor
窦圣跃
王婷
李元杰
刘菁
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18794837.7A priority Critical patent/EP3621385A4/en
Publication of WO2018202180A1 publication Critical patent/WO2018202180A1/zh
Priority to US16/672,927 priority patent/US11363451B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • 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
    • H04J11/0026—Interference mitigation or co-ordination of multi-user interference
    • H04J11/0036—Interference mitigation or co-ordination of multi-user interference at the receiver
    • H04J11/004—Interference mitigation or co-ordination of multi-user interference at the receiver using regenerative subtractive interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H04B1/71075—Parallel interference cancellation
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • 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

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for information transmission.
  • NCJT Non-Coherent Joint Transmission
  • LTE Long Term Evolution
  • NR 5G New Radio
  • the technical problem to be solved by the embodiments of the present application is to provide a method and device for information transmission, so that the NCJT can be effectively used.
  • an embodiment of the present application provides a method for information transmission, which may include:
  • the terminal can report whether it supports the NCJT capability indication information, so that the base station can accurately know whether the terminal supports the NCJT, and then select an appropriate transmission mode to transmit the appropriate DCI, thereby avoiding the useless information transmission caused by the unclear information, and improving the system.
  • the efficiency is beneficial to the normal operation of NCJT.
  • the method further includes:
  • parameters of downlink control information from the base station where the parameters include a format of downlink control information and/or a maximum number of downlink control information to be sent, the parameters being based on the capability indication information.
  • the terminal can perform blind detection based on these parameters to determine the DCI format and the number of DCIs to be detected.
  • the capability indication information is used to indicate whether the terminal supports receiving at least two downlink control information and/or is used to indicate whether the terminal supports a downlink control information format corresponding to an unrelated transmission. .
  • the base station can accurately and quickly understand the capabilities of the terminal, and then select an appropriate transmission mode.
  • the capability indication information includes at least one of the following information:
  • the terminal supports a maximum number of layers of information transmission
  • the terminal supports the capability of a serial interference cancellation receiver or a parallel interference cancellation receiver.
  • the above information or a combination of any two or more pieces of information implicitly indicates that the terminal supports the capability information of the NCJT, and does not need to design a new capability indication reference factor to facilitate compatibility with the system.
  • the capability indication information is carried in high layer signaling.
  • the capability indication information may be carried in the UE capability indication field of the high layer signaling, and the capability indication information is carried by the high layer signaling to facilitate compatibility with the system.
  • an embodiment of the present application provides a method for information transmission, including:
  • the sending the downlink control information to the terminal according to the capability indication information includes:
  • the parameters include the format of the downlink control information and/or the maximum number of downlink control information to be sent;
  • the base station selects an appropriate transmission mode by its own capabilities and the capabilities of the terminal, and/or the current channel conditions, and configures the parameters for transmitting the corresponding DCI, which can be applied to various devices and various channel conditions, thereby improving system adaptability. .
  • the capability indication information is used to indicate whether the terminal supports receiving at least two downlink control information and/or is used to indicate whether the terminal supports a downlink control information format corresponding to an unrelated transmission. .
  • the capability indication information includes at least one of the following information:
  • the terminal supports a maximum number of layers of information transmission
  • the terminal supports the capability of a serial interference cancellation receiver or a parallel interference cancellation receiver.
  • the capability indication information is included in high layer signaling.
  • an apparatus which may include:
  • a sending unit configured to send, to the base station, capability indication information used to indicate whether the terminal supports non-coherent transmission
  • a receiving unit configured to receive downlink control information from the base station, where the downlink control information is based on the capability indication information.
  • the device may be a terminal or a chip, such as a chip disposed in the terminal.
  • the receiving unit is further configured to receive a parameter of downlink control information from the base station, where the parameter includes a format of downlink control information and/or a maximum number of downlink control information to be sent, The parameter is based on the capability indication information.
  • the capability indication information is used to indicate whether the terminal supports receiving at least two downlink control information and/or is used to indicate whether the terminal supports a downlink control information format corresponding to an unrelated transmission. .
  • the capability indication information includes at least one of the following information:
  • the terminal supports a maximum number of layers of information transmission
  • the terminal supports the capability of a serial interference cancellation receiver or a parallel interference cancellation receiver.
  • the capability indication information is carried in high layer signaling.
  • an apparatus which may include:
  • the memory is for storing a set of program code
  • the processor for calling program code stored in the memory, such that the apparatus performs any of the possible aspects of the first aspect or the first aspect The method in the implementation.
  • the device may be a terminal or a chip, such as a chip disposed in the terminal.
  • an apparatus which may include:
  • a receiving unit configured to receive, by the terminal, capability indication information used to indicate whether the terminal supports non-coherent transmission
  • a sending unit configured to send downlink control information to the terminal according to the capability indication information.
  • the device may be a base station or a chip, such as a chip disposed within the base station.
  • the device further includes:
  • a processing unit configured to determine a parameter of the downlink control information according to the capability indication information and whether the base station supports non-coherent transmission; or determine downlink control according to the capability indication information, whether the base station supports non-coherent transmission, and current channel condition a parameter of the information; the parameter includes a format of the downlink control information and/or a maximum number of downlink control information to be sent;
  • the sending unit is further configured to send the parameter to the terminal by using downlink control information or high layer signaling, and indicate a downlink control information format and/or a number of downlink control information that the terminal needs to detect;
  • the capability indication information is used to indicate whether the terminal supports receiving at least two downlink control information and/or is used to indicate whether the terminal supports a downlink control information format corresponding to an unrelated transmission. .
  • the capability indication information includes at least one of the following information:
  • the terminal supports a maximum number of layers of information transmission
  • the capability indication information is included in high layer signaling.
  • an apparatus which may include:
  • the device may be a base station or a chip, such as a chip disposed within the base station.
  • an embodiment of the present application provides a computer readable storage medium having instructions stored therein that, when run on a computer, implement any of the above first aspect or the first aspect The method in the possible implementation.
  • an embodiment of the present application provides a computer readable storage medium having instructions stored therein that, when run on a computer, implement any of the second aspect or the second aspect described above The method in the possible implementation.
  • FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for information transmission provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of another method for information transmission provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of still another method for information transmission provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of information interaction of a method for information transmission provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of another apparatus according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a base station according to an embodiment of the present application.
  • each transmission point adopts a separate precoding scheme to transmit different MIMO data streams or layers to the same user equipment, and the user equipment receiver can simultaneously receive multiple MIMO data streams from different transmission points, thereby improving The peak throughput of users improves the quality of service for edge users.
  • DCI format 2D the transmission mode for Coordinated Multiple Point (CoMP) is TM10, and the corresponding Downlink Control Information (DCI) format is DCI format 2D.
  • CoMP Coordinated Multiple Point
  • DCI format 2D the corresponding Downlink Control Information
  • NCJT can be supported by one DCI or multiple DCIs.
  • some Rel-15 new UEs may not support NCJT due to power consumption and computing power limitation.
  • UE User Equipment
  • DCI format 2E is added.
  • UE does not recognize DCI format 2E.
  • the UE in the NR that is, the NR UE, not to support the reception of multiple DCIs, thereby causing the NCJT to fail.
  • the present application provides a solution to enable NCJT to be effectively employed.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application, where the communication system may include but is not limited to:
  • the base station and the terminal may also be referred to as a User Equipment (UE).
  • UE User Equipment
  • the base station may be an evolved Node B (eNB), a Node B (Node B, NB), a transmission and reception point (TRP) in the 5GNR, a gNB, and a base station controller (Base Station Controller, BSC), Base Transceiver Station (BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), BaseBand Unit (BBU), and the like. It may also be referred to by those skilled in the art as a base transceiver station, a wireless base station, a wireless transceiver, a transceiver function, a Base Station Subsystem (BSS), or some other suitable terminology.
  • the device can receive the capability indication information that is sent by the terminal to indicate whether the terminal supports the non-coherent transmission, and configure and deliver the downlink control information.
  • BSS Base Station Subsystem
  • the terminal may include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, and a video.
  • a device a digital audio player (eg, an MP3 player), a camera, an in-vehicle device, a game console, or any other device of similar functionality.
  • a terminal may also be referred to by a person skilled in the art as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile device.
  • the device can report the capability indication information for indicating whether the terminal supports the non-coherent transmission, and then receive the downlink control information sent by the base station, and perform information transmission according to the received downlink control information.
  • FIG. 2 is a schematic flowchart of a method for information transmission provided by an embodiment of the present application, including but not limited to the following steps:
  • S201 Send capability indication information to the base station to indicate whether the terminal supports non-coherent transmission.
  • S202 Receive downlink control information from the base station.
  • the downlink control information is based on the capability indication information.
  • the capability indication information may be used to indicate whether the terminal supports receiving at least two downlink control information and/or may be used to indicate whether the terminal supports downlink control corresponding to the non-related transmission.
  • Information format That is, the terminal can explicitly inform the base station whether it supports the NCJT capability. Since NCJT can implement NCJT by issuing multiple DCIs, the terminal can directly notify the base station whether it supports receiving at least two DCIs. Of course, in another way of implementing NCJT, a new DCI can be designed.
  • the format such as DCI format 2E, allows the terminal to explicitly inform the base station whether it supports the DCI format corresponding to the NCJT, such as whether DCI format 2E is supported.
  • the base station can clearly understand the capability information of the terminal, and then issue the DCI according to the capability information of the terminal, which can avoid the transmission of useless information and improve the system efficiency.
  • the terminal may send the high layer signaling.
  • the embodiment of the present invention is not limited in any way, as it is transmitted through a medium access control (MAC) layer signaling or a radio resource control (RRC) signaling.
  • MAC medium access control
  • RRC radio resource control
  • the capability indication information When the capability indication information is sent, it can be implemented by modifying the signaling. For example, for RRC signaling, an indication of whether to support NCJT transmission may be added to the UE-EUTRA-Capability information element of the UE- evolved RRC signaling:
  • This field defines whether NCJT as specified in TS 36.213[22]is supported by the UE.
  • the content of the underlined part is newly added in the RRC signaling, and is used to indicate whether the terminal supports the NCJT.
  • the "NCJT" of the underlined portion may be replaced by "multiple DCI” or "DCI format 2E" (DCI format 2E is used to indicate the DCI format for supporting NCJT, and the specific format name may also be other names, and the present invention is implemented. There are no restrictions on the case.)
  • the DCI format supporting the NCJT when used to indicate whether the NCJT is supported, based on the correspondence between the Transmission Mode (TM) and the DCI format, the DCI format supported by the terminal and the information indicating the TM may also be in the RRC letter. Transfer together in the order.
  • TM Transmission Mode
  • the underlined part is used to indicate the DCI format supported by the terminal. After receiving the signaling, the base station can determine whether the terminal supports the NCJT according to the DCI format supported by the terminal.
  • the capability indication information can be transmitted separately from the TM in addition to being transmitted with the TM.
  • the underlined part is used to indicate the DCI format supported by the terminal. After receiving the signaling, the base station can determine whether the terminal supports the NCJT according to the DCI format supported by the terminal.
  • the terminal may implicitly report the capability indication information, and then the base station determines whether the terminal is based on the content included in the capability indication information. Support NCJT.
  • the capability indication information may include, but is not limited to, at least one of the following information:
  • the terminal supports a maximum number of layers of information transmission
  • SIC Serial Interference Cancellation
  • PIC Parallel Interference Cancellation
  • a four-in-one (4T4R) user can support Layer 4 transmission, and can be considered to support NCJT.
  • the maximum throughput supported by the terminal reaches a certain preset threshold, it can be considered as supporting NCJT;
  • a terminal with SIC (Serial Interference Cancellation) or PIC (Parallel Interference Cancellation) receiver capability is considered to support NCJT.
  • the conditions including, but not limited to, the above conditions may be singular as a determination criterion, and a combination of two or more may be performed as a criterion for determining whether the terminal supports the NCJT.
  • the 4T4R user can support a throughput greater than a certain threshold, it can be considered to support NCJT.
  • the embodiment of the invention is not limited at all.
  • the DCI can be delivered according to the capability indication information of the terminal.
  • the terminal may further receive a parameter of the downlink control information from the base station, where the parameter includes a format of the downlink control information and/or a maximum number of downlink control information to be sent, where the parameter is based on the capability indication information. .
  • the terminal After the terminal receives these parameters, it can determine the DCI format and the number of DCIs that need to be detected.
  • the terminal can report whether the terminal supports the NCJT capability indication information, so that the base station can accurately understand whether the terminal supports the NCJT, and then select an appropriate transmission mode to transmit the appropriate DCI, thereby improving the efficiency of the system and facilitating the NCJT. Work properly.
  • FIG. 3 is a schematic flowchart of another method for information transmission provided by an embodiment of the present application, including but not limited to the following steps:
  • S301 Receive capability indication information that is sent by the terminal to indicate whether the terminal supports non-coherent transmission.
  • the receiving capability indication information and the sending downlink control information may be implemented by a base station, where the base station may be a serving base station or a cooperative base station, which is not limited in the embodiment of the present invention.
  • a base station may include at least one TRP or at least one Radio Remote Unit (RRU).
  • RRU Radio Remote Unit
  • the capability indication information is used to indicate whether the terminal supports receiving at least two downlink control information and/or to indicate whether the terminal supports a downlink control information format corresponding to the non-related transmission.
  • the capability indication information may be included in higher layer signaling.
  • the capability indication information includes, but is not limited to, at least one of the following information:
  • the terminal supports a maximum number of layers of information transmission
  • the terminal supports the capability of a serial interference cancellation receiver or a parallel interference cancellation receiver.
  • FIG. 3 is a description of an embodiment of a base station. For a specific process and possible implementations, refer to the description of the embodiment on the terminal side shown in FIG. 2 , and details are not described herein again.
  • FIG. 4 is a schematic flowchart of still another method for information transmission provided by an embodiment of the present application, including but not limited to the following steps:
  • S401 Receive capability indication information sent by the terminal to indicate whether the terminal supports non-coherent transmission.
  • S402. Determine a parameter of the downlink control information according to the capability indication information and whether the base station supports non-coherent transmission, or determine a parameter of the downlink control information according to the capability indication information, whether the base station supports non-coherent transmission, and current channel conditions. .
  • the parameter includes a format of downlink control information and/or a maximum number of downlink control information to be sent.
  • the default base station supports NCJT.
  • the base station may or may not support the NCJT. Therefore, when the base station receives the capability indication information reported by the terminal, the base station may configure the parameter for transmitting the DCI according to the capability indication information of the terminal, and may also be supported according to whether the base station supports the base station.
  • the NCJT configures parameters for transmitting DCI such as the maximum number of DCIs to be transmitted or the format in which the DCI is transmitted.
  • NCJT Channel State Information
  • RSRP Reference Signal Receiving Power
  • the preset threshold is used to compare, and the current channel status is determined according to the comparison result, and details are not described herein again.
  • S403 Send the parameter to the terminal by using downlink control information or high-layer signaling, and indicate the downlink control information format and/or the number of downlink control information that the terminal needs to detect.
  • the parameter can be sent to the terminal.
  • the specific transmission mode may be sent by using DCI transmission or higher layer signaling, such as MAC signaling or RRC signaling.
  • the conventional DCI can be used to carry the above parameters. If the parameter indicates that the NCJT transmission can be used, then multiple DCIs are selected according to the parameters or a new DCI format for supporting the NCJT is sent.
  • the base station when the base station sends the DCI according to the parameter, it may be used as a reference.
  • the maximum number of DCIs configured in the parameter is 4, and the base station may send 4 DCIs or send less than 4 DCIs.
  • the embodiment of the invention is not limited in any way.
  • the step of configuring the DCI parameters of the base station is added, which can be applied to various situations according to the capabilities and channel conditions of the devices at both ends, so that the manner of information transmission is more flexible and the adaptability of the system is improved.
  • FIG. 5 is a schematic diagram of information interaction of a method for information transmission provided by an embodiment of the present application, including but not limited to the following steps:
  • the parameters may include, but are not limited to, the DCI format and/or the maximum number of DCIs to be sent.
  • the terminal After receiving the DCI, the terminal can blindly check the DCI according to the received parameters in the TM10 or other transmission mode corresponding to the NCJT. For example, if the parameter indicates that the maximum number of DCIs sent is 2, the terminal will stop detecting after 2 DCIs are blindly detected. If the format of the DCI is DCI format 2E, the terminal will blindly check the DCI format.
  • the base station learns the capabilities of the terminal and determines the number and/or format of the delivered DCI according to other factors, the DCI is sent, and after receiving the DCI, the terminal can perform the NCJT based on the DCI.
  • FIG. 6 is a schematic diagram of a device according to an embodiment of the present application.
  • the device may be a terminal, or may be a chip or a circuit, such as a chip or a circuit that can be disposed in the terminal.
  • the terminal can correspond to the terminal in the above method.
  • the apparatus can include a processor 110 and a memory 120.
  • the memory 120 is configured to store instructions for executing the instructions stored by the memory 120 to implement the steps in the method corresponding to FIG. 2 above.
  • the device may further include an input port 140 and an output port 150.
  • the apparatus may further include a bus system 130, wherein the processor 110, the memory 120, the input port 140, and the output port 150 may be connected by the bus system 130.
  • the processor 110 is configured to execute the instructions stored in the memory 120 to control the input port 140 to receive signals, and control the output port 150 to send signals to complete the steps performed by the terminal in the above method.
  • the input port 140 and the output port 150 may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as input and output ports.
  • the memory 120 may be integrated in the processor 110 or may be provided separately from the processor 110.
  • the functions of the input port 140 and the output port 150 can be implemented by a dedicated chip through a transceiver circuit or a transceiver.
  • the processor 110 can be implemented by a dedicated processing chip, a processing circuit, a processor, or a general purpose chip.
  • a terminal provided by the embodiment of the present application may be implemented by using a general-purpose computer.
  • the program code for the functions of the processor 110, the input port 140 and the output port 150 is stored in a memory, and the general purpose processor implements the functions of the processor 110, the input port 140 and the output port 150 by executing code in the memory.
  • FIG. 7 is a schematic structural diagram of a terminal device provided by the present application.
  • the terminal can be adapted for use in the system shown in FIG.
  • FIG. 7 shows only the main components of the terminal.
  • the terminal includes a processor, a memory, a control circuit, and an antenna.
  • the processor is mainly used for processing the communication protocol and the communication data, and controlling the entire terminal, executing the software program, and processing the data of the software program, for example, the actions described in the embodiment of the method for supporting the terminal to perform the above information transmission.
  • the memory is primarily used to store software programs and data, such as the capability indication information described in the above embodiments.
  • the control circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals.
  • the control circuit together with the antenna can also be called a transceiver, and is mainly used for transmitting and receiving RF signals in the form of electromagnetic waves.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 7 shows only one memory and processor for ease of illustration. In an actual terminal, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, and the like.
  • the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire terminal and execute the software.
  • the processor in FIG. 7 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus.
  • the terminal may include multiple baseband processors to accommodate different network standards.
  • the terminal may include multiple central processors to enhance its processing capabilities, and various components of the terminal may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and control circuit having the transceiving function can be regarded as the transceiving unit 101 of the terminal, and the processor having the processing function can be regarded as the processing unit 102 of the terminal device 10.
  • the terminal device 10 includes a transceiver unit 101 and a processing unit 102.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the device for implementing the receiving function in the transceiver unit 101 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 101 is regarded as a sending unit, that is, the transceiver unit 101 includes a receiving unit and a sending unit.
  • the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit.
  • FIG. 8 is a schematic structural diagram of another apparatus according to an embodiment of the present application.
  • the apparatus may be a base station, or may be a chip or a circuit, such as a chip or a circuit that can be disposed in a base station.
  • the base station corresponds to a base station in the above method.
  • the apparatus can include a processor 210 and a memory 220.
  • the memory 220 is configured to store instructions for executing the instructions stored by the memory 220 to cause the apparatus to implement the method corresponding to any of the foregoing FIGS.
  • the device may further include an input port 240 and an output port 250.
  • the apparatus can also include a bus system 230.
  • the processor 210, the memory 220, the input port 240 and the output port 250 are connected by a bus system 230.
  • the processor 210 is configured to execute the instructions stored in the memory 220 to control the input port 240 to receive signals, and control the output port 250 to send signals.
  • the steps of the base station in the above method are completed.
  • the input port 240 and the output port 250 may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as input and output ports.
  • the memory 220 may be integrated in the processor 210 or may be provided separately from the processor 210.
  • the functions of the input port 240 and the output port 250 can be implemented by a dedicated chip through a transceiver circuit or a transceiver.
  • the processor 210 can be implemented by a dedicated processing chip, a processing circuit, a processor, or a general purpose chip.
  • a base station provided by an embodiment of the present application may be implemented by using a general-purpose computer.
  • the program code that implements the functions of the processor 210, the input port 240 and the output port 250 is stored in a memory, and the general purpose processor implements the functions of the processor 210, the input port 240, and the output port 250 by executing code in the memory.
  • FIG. 9 is a schematic structural diagram of a base station according to an embodiment of the present application.
  • the base station can be applied to the system as shown in FIG. 1.
  • the base station includes one or more radio frequency units, such as a remote radio unit (RRU) 201 and one or more baseband units (BBUs) (also referred to as digital units, DUs) 202.
  • RRU 201 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 2011 and a radio frequency unit 2012.
  • the RRU 201 is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for transmitting the signaling messages described in the foregoing embodiments to the terminal.
  • the BBU 202 part is mainly used for performing baseband processing, controlling a base station, and the like.
  • the RRU 201 and the BBU 202 may be physically disposed together or physically separated, that is, distributed base stations.
  • the BBU 202 is a control center of a base station, and may also be referred to as a processing unit, and is mainly used to perform baseband processing functions such as channel coding, multiplexing, modulation, spread spectrum, and the like.
  • the BBU processing unit
  • the BBU can be used to control the base station to perform an operation procedure about the base station in the foregoing method embodiment.
  • the BBU 202 may be composed of one or more boards, and multiple boards may jointly support a single access standard radio access network (such as an LTE network), or may separately support different access modes of wireless. Access Network.
  • the BBU 202 also includes a memory 2021 and a processor 2022.
  • the memory 2021 is used to store necessary instructions and data.
  • the memory 2021 stores the capability indication information, the DCI parameters, and the like in the above embodiment.
  • the processor 2022 is configured to control the base station to perform necessary actions, for example, to control the base station to perform an operation procedure about the base station in the foregoing method embodiment.
  • the memory 2021 and the processor 2022 can serve one or more boards. That is, the memory and processor can be individually set on each board. It is also possible that multiple boards share the same memory and processor. In addition, the necessary circuits can be set on each board.
  • the embodiment of the present application further provides a communication system, including the foregoing base station and one or more terminals.
  • the processor may be a central processing unit (“CPU"), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and dedicated integration. Circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory can include read only memory and random access memory and provides instructions and data to the processor.
  • a portion of the memory may also include a non-volatile random access memory.
  • the bus system may include a power bus, a control bus, and a status signal bus in addition to the data bus.
  • a power bus may include a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the various buses are labeled as bus systems in the figure.
  • each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the size of the serial numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

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Abstract

本申请实施例公开了一种信息传输的方法及装置，方法包括：终端向基站发送用于指示所述终端是否支持非相干传输的能力指示信息；接收所述基站发送的下行控制信息，所述下行控制信息基于所述能力指示信息。采用本申请实施例，可使得基站了解终端是否支持NCJT，进而选择合适的传输方式。

Description

一种信息传输的方法及装置 技术领域
本申请涉及通信技术领域，尤其涉及一种信息传输的方法及装置。
背景技术
随着网络通信容量的爆炸式增长，面向第五代移动通信技术(5th Generation，5G)的无线通信技术的演进需求也更加明确及迫切，开始受到业界极大关注。在面向5G的无线通信技术的演进中，一方面，传统的无线通信性能指标，比如网络容量、频谱效率等需要持续提升以进一步提高有限且日益紧张的无线频谱利用率；另一方面，更丰富的通信模式以及由此带来的终端用户体验的提升以及蜂窝通信应用的扩展也是一个需要考虑的演进方向。作为面向5G的关键候选技术，非相干传输(Non-Coherent Joint Transmission，NCJT)在长期演进(Long Term Evolution，LTE)和5G新无线(New Radio，NR)中，都已明确需支持。但具体如何支持NCJT的实现，是一个亟待解决的问题。
发明内容
本申请实施例所要解决的技术问题在于，提供一种信息传输的方法及装置，以期使得NCJT可以被有效的采用。
第一方面，本申请的实施例提供了一种信息传输的方法，可包括：
向基站发送用于指示终端是否支持非相干传输的能力指示信息；
接收来自所述基站的下行控制信息，所述下行控制信息基于所述能力指示信息。
终端通过上报自己是否支持NCJT的能力指示信息，使得基站可以准确的了解终端是否支持NCJT，进而选择合适的传输方式来发送合适的DCI，可以避免因信息不明确导致的无用信息传输，提高了系统的效率，利于NCJT的正常进行。
在一种可能的实现方式中，还包括：
接收来自所述基站的下行控制信息的参数，所述参数包括下行控制信息的格式和/或待发送的下行控制信息的最大数目，所述参数基于所述能力指示信息。
终端可以根据这些参数进行盲检，确定需要检测的DCI格式和DCI数目。
在一种可能的实现方式中，所述能力指示信息用于指示所述终端是否支持接收至少两个下行控制信息和/或用于指示所述终端是否支持与非相关传输对应的下行控制信息格式。
通过显性的能力指示，利于基站准确快速的了解终端的能力，进而选择合适的传输方式。
在一种可能的实现方式中，所述能力指示信息包括以下信息中的至少一种：
所述终端支持信息传输的最大层数；
所述终端支持的最大吞吐量；
所述终端支持的最大码字数；
所述终端是否支持串行干扰消除接收机或并行干扰消除接收机的能力。
通过上述信息或任意两个及以上信息的组合来隐性的指示终端支持NCJT的能力信息，无需设计新的能力指示参考因素，利于与系统兼容。
在一种可能的实现方式中，所述能力指示信息携带在高层信令中。
例如，能力指示信息可以携带在高层信令的UE能力指示域中，通过高层信令来携带能力指示信息，利于与系统兼容。
第二方面，本申请的实施例提供了一种信息传输的方法，包括：
接收终端发送的用于指示所述终端是否支持非相干传输的能力指示信息；
根据所述能力指示信息向所述终端发送下行控制信息。
在一种可能的实现方式中，所述根据所述能力指示信息向所述终端发送下行控制信息，包括：
根据所述能力指示信息和所述基站是否支持非相干传输确定下行控制信息的参数；或者根据所述能力指示信息、所述基站是否支持非相干传输以及当前信道状况确定下行控制信息的参数；所述参数包括下行控制信息的格式和/或待发送的下行控制信息的最大数目；
将所述参数通过下行控制信息或高层信令发送给所述终端，指示所述终端需要检测的下行控制信息格式和/或下行控制信息数目；
根据所述参数向所述终端发送下行控制信息。
基站通过自身的能力及终端的能力，和/或当前信道状况来选择合适的传输方式，并配置发送相应的DCI的参数，可以适用于各种设备以及各种信道状况，提高了系统的适应性。
在一种可能的实现方式中，所述能力指示信息用于指示所述终端是否支持接收至少两个下行控制信息和/或用于指示所述终端是否支持与非相关传输对应的下行控制信息格式。
在一种可能的实现方式中，所述能力指示信息包括以下信息中的至少一种：
所述终端支持信息传输的最大层数；
所述终端支持的最大吞吐量；
所述终端支持的最大码字数；
所述终端是否支持串行干扰消除接收机或并行干扰消除接收机的能力。
在一种可能的实现方式中，所述能力指示信息包含在高层信令中。
第三方面，本申请的实施例提供了一种装置，可包括：
发送单元，用于向基站发送用于指示终端是否支持非相干传输的能力指示信息；
接收单元，用于接收来自所述基站的下行控制信息，所述下行控制信息基于所述能力指示信息。
该装置可以为终端或芯片，如可以为设置于终端内的芯片。
在一种可能的实现方式中，所述接收单元还用于接收来自所述基站的下行控制信息的参数，所述参数包括下行控制信息的格式和/或待发送的下行控制信息的最大数目，所述参数基于所述能力指示信息。
在一种可能的实现方式中，所述能力指示信息用于指示所述终端是否支持接收至少两个下行控制信息和/或用于指示所述终端是否支持与非相关传输对应的下行控制信息格式。
在一种可能的实现方式中，所述能力指示信息包括以下信息中的至少一种：
所述终端支持信息传输的最大层数；
所述终端支持的最大吞吐量；
所述终端支持的最大码字数；
所述终端是否支持串行干扰消除接收机或并行干扰消除接收机的能力。
在一种可能的实现方式中，所述能力指示信息携带在高层信令中。
第四方面，本申请的实施例提供了一种装置，可包括：
处理器和存储器，其中，所述存储器用于存储一组程序代码，所述处理器用于调用所述存储器中存储的程序代码，使得所述装置执行如第一方面或第一方面的任意可能的实现方式中的方法。
该装置可以为终端或芯片，如可以为设置于终端内的芯片。
第五方面，本申请的实施例提供了一种装置，可包括：
接收单元，用于接收终端发送的用于指示所述终端是否支持非相干传输的能力指示信息；
发送单元，用于根据所述能力指示信息向所述终端发送下行控制信息。
该装置可以为基站或芯片，如可以为设置于基站内的芯片。
在一种可能的实现方式中，所述装置还包括：
处理单元，用于根据所述能力指示信息和所述基站是否支持非相干传输确定下行控制信息的参数；或者根据所述能力指示信息、所述基站是否支持非相干传输以及当前信道状况确定下行控制信息的参数；所述参数包括下行控制信息的格式和/或待发送的下行控制信息的最大数目；
所述发送单元还用于将所述参数通过下行控制信息或高层信令发送给所述终端，指示所述终端需要检测的下行控制信息格式和/或下行控制信息数目；
以及根据所述参数向所述终端发送下行控制信息。
在一种可能的实现方式中，所述能力指示信息用于指示所述终端是否支持接收至少两个下行控制信息和/或用于指示所述终端是否支持与非相关传输对应的下行控制信息格式。
在一种可能的实现方式中，所述能力指示信息包括以下信息中的至少一种：
所述终端支持信息传输的最大层数；
所述终端支持的最大吞吐量；
所述终端支持的最大码字数；
所述终端是否支持串行干扰消除接收机并行干扰消除接收机的能力。
在一种可能的实现方式中，所述能力指示信息包含在高层信令中。
第六方面，本申请的实施例提供了一种装置，可包括：
处理器和存储器，其中，所述存储器用于存储一组程序代码，所述处理器用于调用所述存储器中存储的程序代码，使得所述装置执行第二方面或第二方面的任意可能的实现方式中的方法。该装置可以为基站或芯片，如可以为设置于基站内的芯片。
第七方面，本申请的实施例提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，实现上述第一方面或第一方面的任意可能的实现方式中的方法。
第八方面，本申请的实施例提供了一种计算机可读存储介质，所述计算机可读存储介 质中存储有指令，当其在计算机上运行时，实现上述第二方面或第二方面的任意可能的实现方式中的方法。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1本申请实施例提供的一种通信系统架构示意图；
图2是本申请实施例提供的一种信息传输的方法的流程示意图；
图3是本申请实施例提供的另一种信息传输的方法的流程示意图；
图4是本申请实施例提供的又一种信息传输的方法的流程示意图；
图5是本申请实施例提供的信息传输的方法的信息交互示意图；
图6是本申请实施例提供的一种装置的组成示意图；
图7是本申请实施例提供的一种终端的结构示意图；
图8是本申请实施例提供的另一种装置的组成示意图；
图9是本申请实施例提供的一种基站的结构成示意图。
具体实施方式
随着通信技术的不断发展，业务规模、消息数量和终端数量飞速增长，在未来5G通信系统或更高级别的通信系统中，非相干传输将成为提升边缘用户峰值吞吐量的重要技术手段之一。在非相干传输中，各个传输点采用各自独立的预编码方案，发送不同的MIMO数据流或层给同一用户设备，用户设备接收端可同时接收多个来自不同传输点的MIMO数据流，从而提高用户的峰值吞吐量，改善边缘用户的服务质量。
在Rel-11现有协议中，针对协同多点(Coordination multiple point，CoMP)的传输模式为TM10,对应的物理层下行控制信息(Downlink Control Information，DCI)格式为DCI format 2D。为了支持NCJT，针对Rel-15LTE中NCJT的DCI format来说，有两种可能性：(1)保持DCI format 2D不变(即DCI的payload size不变)(2)设计一个新的DCI format，如DCI format 2E来对应NCJT。针对5G,可通过一个DCI或者多个DCI支持NCJT。
但是针对LTE Rel-15新的用户设备(User Equipment，UE)即Rel-15UE，由于功耗、计算能力的限制，部分Rel-15新UE可能不支持NCJT，此时，若新增DCI format 2E，UE并不能识别DCI format 2E。同样，针对NR中的UE即NR UE也有可能不支持多个DCI的接收，从而导致NCJT无法进行。
本申请提供一种方案，以期使得NCJT可以被有效的采用。
下面结合本申请实施例中的附图对本申请的实施例进行描述。本申请的说明书和权利要求书及上述附图中的术语“第一”和“第二”等是用于区别不同对象，而非用于描述特定顺序。此外，“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单 元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
图1是本申请实施例提供的一种通信系统架构示意图，该通信系统可以包括但不限于：
基站和终端，终端也可称之为用户设备(User Equipment，UE)。
其中，基站可以是演进型节点B(evolved Node B，eNB)、节点B(Node B，NB)、5GNR中的收发点(Transmission and reception point,TRP)，gNB，基站控制器(Base Station Controller，BSC)、基站收发台(Base Transceiver Station,BTS)、家庭基站(例如，Home evolved NodeB，或Home Node B，HNB)、基带单元(BaseBand Unit，BBU)等。其也可以被本领域技术人员称之为基站收发机、无线基站、无线收发机、收发机功能、基站子系统(BaseStationSubsystem，BSS)或者一些其它适当的术语。其可以接收终端上报的用于指示所述终端是否支持非相干传输的能力指示信息，配置和下发下行控制信息。
其中，终端可以包括蜂窝电话、智能电话、会话启动协议(Session Initiation Protocol，SIP)电话、膝上型计算机、个人数字助理(Personal Digital Assistant，PDA)、卫星无线电、全球定位系统、多媒体设备、视频设备、数字音频播放器(例如，MP3播放器)、照相机、车载设备、游戏控制台或者其它任何相似功能的设备。终端也可以被本领域技术人员称为移动站、用户站、移动单元、用户单元、无线单元、远程单元、移动设备、无线设备、无线通信设备、远程设备、移动用户站、接入终端、移动终端、无线终端、远程终端、手持设备、用户代理、移动客户端、客户端或者一些其它适当的术语。其可以上报用于指示终端是否支持非相干传输的能力指示信息，然后接收基站下发的下行控制信息，根据接收到的下行控制信息进行信息传输。
下面将结合图2-图5对本申请的信息传输的方法进行详细说明。
图2是本申请实施例提供的一种信息传输的方法的流程示意图，包括但不限于如下步骤：
S201，向基站发送用于指示终端是否支持非相干传输的能力指示信息。
S202，接收来自所述基站的下行控制信息。
其中，所述下行控制信息基于所述能力指示信息。
可选地，在步骤S201中，所述能力指示信息可以用于指示所述终端是否支持接收至少两个下行控制信息和/或可以用于指示所述终端是否支持与非相关传输对应的下行控制信息格式。即终端可以显性的通知基站，自身是否支持NCJT的能力。由于NCJT可以通过下发多个DCI来实现NCJT，因此，终端可以直接显性的通知基站，自身是否支持接收至少两个DCI；当然，在另一种实现NCJT的方式中，可以设计新的DCI格式，如DCI format 2E，则终端可以显性的通知基站，自身是否支持与NCJT对应的DCI格式如是否支持DCI format 2E。
通过显性的指示，基站可以非常清楚地了解到终端的能力信息，然后根据终端的能力信息来下发DCI，可以避免无用信息的传输，利于提高系统效率。
需要说明的是，为了实现NCJT，上述是否支持接收至少两个DCI指的是是否支持在同一载波内接收至少两个DCI。且具体在发送上述能力指示信息时，终端可以通过高层信令发送。如通过介质访问控制(Media Access Control，MAC)层信令发送或者通过无线资 源控制(Radio Resource Control，RRC)信令发送，本发明实施例不作任何限定。
在发送能力指示信息时，可以通过对信令的改造来实现。例如，对于RRC信令，可以在RRC信令的UE演进的通用陆地无线接入能力信息元素(UE-EUTRA-Capability information element)中增加是否支持NCJT传输的指示:
Figure PCTCN2018085736-appb-000001
This field defines whether NCJT as specified in TS 36.213[22]is supported by the UE.
其中，下划线部分的内容为在RRC信令中新增的内容，用于指示终端是否支持NCJT。
可选地，下划线部分的“NCJT”可以替换为“multiple DCI”或者“DCI format 2E”(DCI format 2E用于表示用于支持NCJT的DCI格式，具体格式名称也可以是其他称呼，本发明实施例不作任何限定。)
可选地，当使用支持NCJT的DCI格式来指示是否支持NCJT时，基于传输模式(Transmission Mode，TM)与DCI格式的对应关系，也可以将终端支持的DCI格式与指示TM的信息在RRC信令中一起传输。
例如：
Figure PCTCN2018085736-appb-000002
Figure PCTCN2018085736-appb-000003
其中，下划线部分内容即用于指示终端支持的DCI格式，基站在接收到该信令之后，便可以根据终端支持的DCI格式确定终端是否支持NCJT。
当然，能力指示信息除了与TM一起传输之外，也可以与TM分开传输。
例如：
Figure PCTCN2018085736-appb-000004
其中，下划线部分内容即用于指示终端支持的DCI格式，基站在接收到该信令之后，便可以根据终端支持的DCI格式确定终端是否支持NCJT。
以上具体描述了终端显性上报自身是否支持NCJT的能力指示信息，除了显性的上报之外，也可以隐性的上报能力指示信息，然后由基站根据能力指示信息中包含的内容来确定终端是否支持NCJT。
可选地，当采用隐性指示的时候，所述能力指示信息可以包括但不限于以下信息中的至少一种：
所述终端支持信息传输的最大层数；
所述终端支持的最大吞吐量；
所述终端支持的最大码字数；
所述终端是否支持串行干扰消除(Successive Interference Cancellation，SIC)接收机或并行干扰消除(Parallel Interference Cancellation，PIC)接收机的能力。
例如，四收四发(4T4R)的用户可以支持4层传输，则可以认为支持NCJT。
又例如，终端支持的最大吞吐量达到某一预设阈值，则可以认为其支持NCJT；
终端支持的最大码字数达到某一预设字数，则可以认为其支持NCJT；
终端具有SIC(串行干扰消除)或PIC(并行干扰消除)接收机的能力，则认为其支持NCJT。
当然，包括但不限于上述条件可以单一的作为确定标准，也可以进行两个或以上的组合来作为确定终端是否支持NCJT的标准。
例如，4T4R的用户可以支持的吞吐量大于一定的阈值，则可以认为其支持NCJT。本发明实施例不作任何限定。
当基站侧根据终端的能力指示信息确定了终端的能力之后，便可以根据终端的能力指示信息来下发DCI。
可选地，终端还可以接收来自所述基站的下行控制信息的参数，所述参数包括下行控制信息的格式和/或待发送的下行控制信息的最大数目，所述参数基于所述能力指示信息。
当终端接收到这些参数之后，便可以确定需要检测的DCI格式和DCI数目。
在本实施例中，终端通过上报自己是否支持NCJT的能力指示信息，使得基站可以准确的了解终端是否支持NCJT，进而选择合适的传输方式来发送合适的DCI，提高了系统的效率，利于NCJT的正常进行。
图3是本申请实施例提供的另一种信息传输的方法的流程示意图，包括但不限于如下步骤：
S301，接收终端发送的用于指示所述终端是否支持非相干传输的能力指示信息。
S302，根据所述能力指示信息向所述终端发送下行控制信息。
可选地，接收能力指示信息和发送下行控制信息可以由一个基站实现，该基站可以是服务基站也可以是协作基站，本发明实施例不做任何限定。一个基站可以包括至少一个TRP或至少一个射频拉远单元(Radio Remote Unit，RRU)。
可选地，所述能力指示信息用于指示所述终端是否支持接收至少两个下行控制信息和/或用于指示所述终端是否支持与非相关传输对应的下行控制信息格式。
所述能力指示信息可以包含在高层信令中。
可选地，所述能力指示信息包括但不限于以下信息中的至少一种：
所述终端支持信息传输的最大层数；
所述终端支持的最大吞吐量；
所述终端支持的最大码字数；
所述终端是否支持串行干扰消除接收机或并行干扰消除接收机的能力。
图3为基站侧的实施例描述，其具体过程及可能的实现方式可参见图2所示终端侧的实施例描述，此处不再赘述。
图4是本申请实施例提供的又一种信息传输的方法的流程示意图，包括但不限于如下步骤：
S401，接收终端发送的用于指示所述终端是否支持非相干传输的能力指示信息。
S402，根据所述能力指示信息和所述基站是否支持非相干传输确定下行控制信息的参 数；或者根据所述能力指示信息、所述基站是否支持非相干传输以及当前信道状况确定下行控制信息的参数。
其中，所述参数包括下行控制信息的格式和/或待发送的下行控制信息的最大数目。
可选地，在图3所示实施例中，默认基站支持NCJT。在实际应用时，基站有可能支持NCJT也可能不支持NCJT，因此，当基站接收到终端上报的能力指示信息时，除了基于终端的能力指示信息来配置发送DCI的参数，还可以根据基站是否支持NCJT来配置发送DCI的参数如待发送DCI的最大数目或发送DCI的格式。
当然，如果基站和终端都支持NCJT，但是当前信道状况不佳时，使用NCJT并不是明智的方案，则基站仍然可以考虑只发送常规的单个DCI。其中，当前信道状况可以使用信道状态信息(Channel State Information，CSI)或参考信号接收功率(Reference Signal Receiving Power，RSRP)来衡量，其它形式的指标，本发明也不做限定。具体可以通过设定预设的阈值来比较，根据比较结果确定当前信道状况，此处不再赘述。
S403，将所述参数通过下行控制信息或高层信令发送给所述终端，指示所述终端需要检测的下行控制信息格式和/或下行控制信息数目。
当配置好了发送DCI的参数之后，可以将该参数发送给终端。具体发送的方式可以使用DCI发送或高层信令如MAC信令或RRC信令发送。
当使用DCI发送时，可以先使用一个常规的DCI来携带上述参数，如果参数指示可以使用NCJT传输，则后续根据参数选择多个DCI下发或选择新的用于支持NCJT的DCI格式下发。
S404，根据所述参数向所述终端发送下行控制信息。
需要说明的是，基站在根据所述参数来发送DCI时，可以将其作为参考，例如参数中配置的DCI最大发送数目为4，基站可以发送4个DCI，也可以发送少于4个的DCI，本发明实施例不作任何限定。
在本实施例中，增加了基站配置DCI参数的步骤，可以根据两端设备的能力和信道状况来适用于各种情况，使得信息传输的方式更加灵活，提升了系统的适应性。
图5是本申请实施例提供的信息传输的方法的信息交互示意图，包括但不限于如下步骤：
S501，通过RRC信令上报用于指示所述终端是否支持非相干传输的能力指示信息。
具体上报的过程及方式可以参照图2所示实施例的描述，此处不再赘述。
S502，通过RRC信令配置向终端发送DCI的参数。
其中，参数中可以包括但不限于DCI格式和/或待发送的DCI的最大数目。
具体配置DCI参数的过程可以参照图4所示实施例的描述，此处不再赘述。
S503，根据参数发送DCI。
终端在收到DCI之后，可以根据接收到的参数在TM10或其他与NCJT对应的传输模式下盲检DCI。例如，参数指示发送DCI最大数目为2个，则终端盲检到2个DCI之后将停止检测，又如参数指示发送DCI的格式为DCI format 2E，则终端将盲检该DCI格式。
S504，根据发送的DCI进行NCJT传输。
当基站获知到终端的能力并根据其他因素确定了下发的DCI数目和/或格式之后，便会 进行DCI下发，终端收到这些DCI之后，便可以基于这些DCI进行NCJT。
上述详细阐述了本申请实施例的方法，下面阐述本申请实施例的装置。
根据前述方法，图6为本申请实施例提供的一种装置的组成示意图，如图6所示，该装置可以为终端，也可以为芯片或电路，比如可设置于终端的芯片或电路。该终端可以对应上述方法中的终端。
该装置可以包括处理器110和存储器120。该存储器120用于存储指令，该处理器110用于执行该存储器120存储的指令，以实现如上图2对应的方法中的步骤。
进一步的，该装置还可以包括、输入口140和输出口150。进一步的，该装置还可以进一步包括总线系统130，其中，处理器110、存储器120、输入口140和输出口150可以通过总线系统130相连。
处理器110用于执行该存储器120存储的指令，以控制输入口140接收信号，并控制输出口150发送信号，完成上述方法中终端执行的步骤。其中，输入口140和输出口150可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为输入输出口。所述存储器120可以集成在所述处理器110中，也可以与所述处理器110分开设置。
作为一种实现方式，输入口140和输出口150的功能可以考虑通过收发电路或者收发的专用芯片实现。处理器110可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。
作为另一种实现方式，可以考虑使用通用计算机的方式来实现本申请实施例提供的终端。即将实现处理器110，输入口140和输出口150功能的程序代码存储在存储器中，通用处理器通过执行存储器中的代码来实现处理器110，输入口140和输出口150的功能。
该装置所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于这些内容的描述，此处不做赘述。
图7为本申请提供的一种终端设备的结构示意图。该终端可适用于图1所示出的系统中。为了便于说明，图7仅示出了终端的主要部件。如图7所示，终端包括处理器、存储器、控制电路以及天线。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端进行控制，执行软件程序，处理软件程序的数据，例如用于支持终端执行上述信息传输的方法实施例中所描述的动作。存储器主要用于存储软件程序和数据，例如存储上述实施例中所描述的能力指示信息。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号。
当终端开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图7仅示出了一个存储器和处理器。在实际的终端中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等， 本发明实施例对此不做限制。
作为一种可选的实现方式，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端进行控制，执行软件程序，处理软件程序的数据。图7中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端可以包括多个基带处理器以适应不同的网络制式，终端可以包括多个中央处理器以增强其处理能力，终端的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
示例性的，在发明实施例中，可以将具有收发功能的天线和控制电路视为终端的收发单元101，将具有处理功能的处理器视为终端设备10的处理单元102。如图7所示，终端设备10包括收发单元101和处理单元102。收发单元也可以称为收发器、收发机、收发装置等。可选的，可以将收发单元101中用于实现接收功能的器件视为接收单元，将收发单元101中用于实现发送功能的器件视为发送单元，即收发单元101包括接收单元和发送单元示例性的，接收单元也可以称为接收机、接收器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
根据前述方法，图8为本申请实施例提供的另一种装置的组成示意图，如图8所示，该装置可以为基站，也可以为芯片或电路，如可设置于基站内的芯片或电路。该基站对应上述方法中的基站。该装置可以包括处理器210和存储器220。该存储器220用于存储指令，该处理器210用于执行该存储器220存储的指令，以使所述装置实现前述如图3-图5中任一个对应的方法。
进一步的，该装置还可以包括输入口240和输出口250。再进一步的，该装置还可以包括总线系统230。
其中，处理器210、存储器220、输入口240和输出口250通过总线系统230相连，处理器210用于执行该存储器220存储的指令，以控制输入口240接收信号，并控制输出口250发送信号，完成上述方法中基站的步骤。其中，输入口240和输出口250可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为输入输出口。所述存储器220可以集成在所述处理器210中，也可以与所述处理器210分开设置。
作为一种实现方式，输入口240和输出口250的功能可以考虑通过收发电路或者收发的专用芯片实现。处理器210可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。
作为另一种实现方式，可以考虑使用通用计算机的方式来实现本申请实施例提供的基站。即将实现处理器210，输入口240和输出口250功能的程序代码存储在存储器中，通用处理器通过执行存储器中的代码来实现处理器210，输入口240和输出口250的功能。
所述基站所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于这些内容的描述，此处不做赘述。
根据前述方法，图9为本申请实施例提供的一种基站的结构示意图。如图9所示，该基站可应用于如图1所示的系统中。基站包括一个或多个射频单元，如远端射频单元(remote radio unit,RRU)201和一个或多个基带单元(baseband unit，BBU)(也可称为数字单元，digital unit，DU)202。所述RRU201可以称为收发单元、收发机、收发电路、或者收发器等等，其可以包括至少一个天线2011和射频单元2012。所述RRU201部分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于向终端发送上述实施例中所述的信令消息。所述BBU202部分主要用于进行基带处理，对基站进行控制等。所述RRU201与BBU202可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
所述BBU202为基站的控制中心，也可以称为处理单元，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如所述BBU(处理单元)可以用于控制基站执行上述方法实施例中关于基站的操作流程。
在一个示例中，所述BBU202可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网。所述BBU202还包括存储器2021和处理器2022。所述存储器2021用以存储必要的指令和数据。例如存储器2021存储上述实施例中的能力指示信息、DCI参数等。所述处理器2022用于控制基站进行必要的动作，例如用于控制基站执行上述方法实施例中关于基站的操作流程。所述存储器2021和处理器2022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
根据本申请实施例提供的方法，本申请实施例还提供一种通信系统，其包括前述的基站和一个或多于一个终端。
应理解，在本申请实施例中，处理器可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。
该总线系统除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线系统。
在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
还应理解，本文中涉及的第一、第二、第三、第四以及各种数字编号仅为描述方便进行的区分，并不用来限制本发明实施例的范围。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各种说明性逻辑块(illustrative logical block)和步骤(step)，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖 在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (22)

  1. 一种信息传输的方法，其特征在于，包括：
    向基站发送用于指示终端是否支持非相干传输的能力指示信息；
    接收来自所述基站的下行控制信息，所述下行控制信息基于所述能力指示信息。
  2. 根据权利要求1所述的方法，其特征在于，还包括：
    接收来自所述基站的下行控制信息的参数，所述参数包括下行控制信息的格式和/或待发送的下行控制信息的最大数目，所述参数基于所述能力指示信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述能力指示信息用于指示所述终端是否支持接收至少两个下行控制信息和/或用于指示所述终端是否支持与非相关传输对应的下行控制信息格式。
  4. 根据权利要求1或2所述的方法，其特征在于，所述能力指示信息包括以下信息中的至少一种：
    所述终端支持信息传输的最大层数；
    所述终端支持的最大吞吐量；
    所述终端支持的最大码字数；
    所述终端是否支持串行干扰消除接收机或并行干扰消除接收机的能力。
  5. 根据权利要求1-4中任意一项所述的方法，其特征在于，所述能力指示信息携带在高层信令中。
  6. 一种信息传输的方法，其特征在于，包括：
    接收终端发送的用于指示所述终端是否支持非相干传输的能力指示信息；
    根据所述能力指示信息向所述终端发送下行控制信息。
  7. 根据权利要求6所述的方法，其特征在于，所述根据所述能力指示信息向所述终端发送下行控制信息，包括：
    根据所述能力指示信息和所述基站是否支持非相干传输确定下行控制信息的参数；或者根据所述能力指示信息、所述基站是否支持非相干传输以及当前信道状况确定下行控制信息的参数；所述参数包括下行控制信息的格式和/或待发送的下行控制信息的最大数目；
    将所述参数通过下行控制信息或高层信令发送给所述终端，指示所述终端需要检测的下行控制信息格式和/或下行控制信息数目；
    根据所述参数向所述终端发送下行控制信息。
  8. 根据权利要求6或7所述的方法，其特征在于，所述能力指示信息用于指示所述终 端是否支持接收至少两个下行控制信息和/或用于指示所述终端是否支持与非相关传输对应的下行控制信息格式。
  9. 根据权利要求6或7所述的方法，其特征在于，所述能力指示信息包括以下信息中的至少一种：
    所述终端支持信息传输的最大层数；
    所述终端支持的最大吞吐量；
    所述终端支持的最大码字数；
    所述终端是否支持串行干扰消除接收机或并行干扰消除接收机的能力。
  10. 根据权利要求8或9所述的方法，其特征在于，所述能力指示信息包含在高层信令中。
  11. 一种装置，其特征在于，包括：
    发送单元，用于向基站发送用于指示终端是否支持非相干传输的能力指示信息；
    接收单元，用于接收来自所述基站的下行控制信息，所述下行控制信息基于所述能力指示信息。
  12. 根据权利要求11所述的装置，其特征在于，所述接收单元还用于接收来自所述基站的下行控制信息的参数，所述参数包括下行控制信息的格式和/或待发送的下行控制信息的最大数目，所述参数基于所述能力指示信息。
  13. 根据权利要求11或12所述的装置，其特征在于，所述能力指示信息用于指示所述终端是否支持接收至少两个下行控制信息和/或用于指示所述终端是否支持与非相关传输对应的下行控制信息格式。
  14. 根据权利要求11或12所述的装置，其特征在于，所述能力指示信息包括以下信息中的至少一种：
    所述终端支持信息传输的最大层数；
    所述终端支持的最大吞吐量；
    所述终端支持的最大码字数；
    所述终端是否支持串行干扰消除接收机或并行干扰消除接收机的能力。
  15. 根据权利要求11-14中任意一项所述的装置，其特征在于，所述能力指示信息携带在高层信令中。
  16. 一种装置，其特征在于，包括：
    处理器和存储器，其中，所述存储器用于存储一组程序代码，所述处理器用于调用所 述存储器中存储的程序代码，使得所述装置执行如权利要求1-10中任意一项所述的方法。
  17. 一种装置，其特征在于，包括：
    接收单元，用于接收终端发送的用于指示所述终端是否支持非相干传输的能力指示信息；
    发送单元，用于根据所述能力指示信息向所述终端发送下行控制信息。
  18. 根据权利要求17所述的装置，其特征在于，所述装置还包括：
    处理单元，用于根据所述能力指示信息和所述基站是否支持非相干传输确定下行控制信息的参数；或者根据所述能力指示信息、所述基站是否支持非相干传输以及当前信道状况确定下行控制信息的参数；所述参数包括下行控制信息的格式和/或待发送的下行控制信息的最大数目；
    所述发送单元还用于将所述参数通过下行控制信息或高层信令发送给所述终端，指示所述终端需要检测的下行控制信息格式和/或下行控制信息数目；
    以及根据所述参数向所述终端发送下行控制信息。
  19. 根据权利要求17或18所述的装置，其特征在于，所述能力指示信息用于指示所述终端是否支持接收至少两个下行控制信息和/或用于指示所述终端是否支持与非相关传输对应的下行控制信息格式。
  20. 根据权利要求17或18所述的装置，其特征在于，所述能力指示信息包括以下信息中的至少一种：
    所述终端支持信息传输的最大层数；
    所述终端支持的最大吞吐量；
    所述终端支持的码字数；
    所述终端是否支持串行干扰消除接收机或并行干扰消除接收机的能力。
  21. 根据权利要求17-20任意一项所述的装置，其特征在于，所述能力指示信息包含在高层信令中。
  22. 一种计算机可读存储介质，其特征在于，用于存储指令，当所述指令被执行时，如权利要求1-10中任意一项的方法被实现。
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US11363451B2 (en) 2022-06-14
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