WO2018121239A1 - Procédé de configuration de livre de codes, station de base et terminal - Google Patents

Procédé de configuration de livre de codes, station de base et terminal Download PDF

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Publication number
WO2018121239A1
WO2018121239A1 PCT/CN2017/115606 CN2017115606W WO2018121239A1 WO 2018121239 A1 WO2018121239 A1 WO 2018121239A1 CN 2017115606 W CN2017115606 W CN 2017115606W WO 2018121239 A1 WO2018121239 A1 WO 2018121239A1
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WO
WIPO (PCT)
Prior art keywords
codebook
information
configuration information
terminal
base station
Prior art date
Application number
PCT/CN2017/115606
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English (en)
Chinese (zh)
Inventor
张雷鸣
刘一樊
雷鸣
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华为技术有限公司
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Publication of WO2018121239A1 publication Critical patent/WO2018121239A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0482—Adaptive codebooks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • 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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • 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

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a base station, and a terminal for configuring a codebook.
  • the fifth-generation mobile communication technology (5th-Generation, 5G), as a next-generation communication technology, supports higher-speed data transmission, for example, Evolved mobile broadband (eMBB) transmission, Massive machine type communications , mMTC) and Ultra-low latency reliable communications (ULLRC).
  • eMBB Evolved mobile broadband
  • Massive machine type communications mMTC
  • UDLRC Ultra-low latency reliable communications
  • eMBB technology requires more bandwidth resources and more efficient communication technology support
  • large-scale antenna transmission technology is a communication technology that has attracted much attention.
  • Large-scale antenna transmission increases the spatial freedom by deploying large-scale antenna arrays, which can support users in more dimensions (vertical dimension transmission enhancement), more transmission layers and more users' spatial multiplexing. For example, Multi-User Multiple-Input Multiple-Output MU-MIMO technology.
  • CSI RS channel state information measurement
  • Beamforming CSI RS reduces CSI RS overhead and does not mean that only beamforming CSI RS is required.
  • Non-precoded CSI RS also has its advantages, such as obtaining more complete channel information and assisting in obtaining the pre-processing method used by beamforming CSI RS. Therefore, multiple sets of CSI RS resources can be configured in the system to the terminal, including non-precoded CSI RS resources and beamforming CSI RS resources.
  • high-frequency communication can provide more bandwidth
  • high-frequency communication has become a key technology to achieve 5G transmission indicators.
  • High-frequency communication has more bandwidth, but it also has serious attenuation problems. Therefore, high-frequency communication is combined with a large-scale antenna array to overcome the problem of severe attenuation.
  • the specific method is to form a narrow beam through a large-scale antenna array to enhance coverage in a specific direction.
  • the base station needs to perform beam management.
  • beam management is mainly implemented by beamforming CSI RS.
  • the transmission metrics are different for different data types. For example, for data with strict time delay and small data volume, the transmission reliability is high, and the data that is not sensitive to time delay and large in data volume has high transmission efficiency requirements. Therefore, different transmission strategies are used for different data type transmissions. For example, for data with a demanding delay and a small amount of data, a wide beam beam is used to generate a wide beam for data transmission, thereby improving reliability. For data that is not sensitive to time delay and has a large amount of data, a high resolution codebook (eg.linear combination codebook) is used to generate a precise beam for data transmission, thereby improving transmission efficiency.
  • a high resolution codebook eg.linear combination codebook
  • the traditional Long Term Evolution (LTE) system uses a semi-static codebook (Codebook) configuration.
  • the configuration period of the semi-static codebook configuration is generally 100-200ms.
  • the dynamic CSI RS configuration can be changed in 1ms. That is, the CSI RS configuration has changed, and the codebook configuration cannot track its changes.
  • the semi-static codebook configuration also does not accommodate dynamic feedback requirements.
  • the embodiment of the invention provides a method, a base station and a terminal for configuring a codebook.
  • the dynamically configured codebook can be matched with a dynamic CSI RS configuration, and can also adapt to dynamic feedback requirements.
  • a method of configuring a codebook configured.
  • the base station configures the configuration information of the codebook for the terminal, and the configuration information of the codebook includes at least one of the following: version information of the codebook, type information of the codebook, parameter information of the codebook, and port number information of the codebook; Signaling or Medium Access Control (MAC) layer signaling sends configuration information of the codebook to the terminal.
  • MAC Medium Access Control
  • the physical layer signaling or the MAC layer signaling indicates that the time interval can reach 1 to 20 scheduling units. Therefore, the configuration information that the base station can dynamically indicate the codebook to the terminal can be specifically implemented.
  • the method further includes: sending a reference signal for channel state information measurement to the terminal; the configuration information of the code book is used to indicate the terminal according to the reference The signal feeds back to the base station channel state information that conforms to the configuration information of the codebook.
  • the base station before the base station transmits the reference signal for channel state information measurement to the terminal, the base station can dynamically indicate the configuration information of the codebook to the terminal, so that the dynamically configured codebook can be matched with the dynamic reference signal configuration.
  • the method further includes: after the base station determines that the configuration information of the codebook is changed, configuring configuration information of the new codebook for the terminal; the base station sends the terminal to the terminal by using physical layer signaling or MAC layer signaling. Configuration information for the new codebook.
  • the base station can dynamically indicate the configuration information of the codebook to the terminal, so that the dynamically configured codebook can be matched with the dynamic reference signal configuration, and the change of the CSI feedback requirement is applied in time; The configuration information of the codebook is transmitted to the terminal before the configuration information of the codebook changes, which can save signaling overhead.
  • the port number information of the codebook includes port configuration information of a reference signal used for channel state information measurement, and the port configuration information is used to indicate the port number of the codebook.
  • the base station indicates the number of ports of the codebook to the terminal by using the port configuration information of the reference signal, so that the codebook configured by the state can be matched with the dynamic reference signal configuration, and there is no additional signaling overhead.
  • a method of configuring a codebook receives configuration information of the codebook from the base station by using physical layer signaling or MAC layer signaling, where the configuration information of the codebook includes at least one of the following: version information of the codebook, type information of the codebook, parameter information and code of the codebook.
  • the method further includes: the terminal receiving, by the base station, a reference signal for channel state information measurement; and the terminal, according to the reference signal, feeding back, to the base station, the configuration information that conforms to the codebook. Channel status information.
  • the port number information of the codebook includes port configuration information of a reference signal used for channel state information measurement, and the port configuration information is used to indicate the port number of the codebook.
  • a third aspect provides a base station, where the base station includes: a processing module and a communication module; and a processing module, configured to: Configuring configuration information of the codebook for the terminal, the configuration information of the codebook includes at least one of the following: version information of the codebook, type information of the codebook, parameter information of the codebook, and port number information of the codebook; and controlling the communication module to pass The physical layer signaling or the MAC layer signaling sends configuration information of the codebook to the terminal.
  • the processing module is further configured to: after the control communication module sends the configuration information of the codebook to the terminal, to further send a reference signal for channel state information measurement to the terminal; And indicating to the terminal, the channel state information corresponding to the configuration information of the codebook is fed back to the base station according to the reference signal.
  • the processing module is further configured to: after determining that the configuration information of the codebook changes, configure configuration information of the new codebook for the terminal, and control the communication module to pass physical layer signaling or MAC layer signaling. Let the terminal send the configuration information of the new codebook.
  • the port number information of the codebook includes port configuration information of a reference signal used for channel state information measurement, and the port configuration information is used to indicate the port number of the codebook.
  • a fourth aspect provides a terminal, where the terminal includes: a processing module and a communication module; and a communication module, configured to receive configuration information of the codebook from the base station by using physical layer signaling or MAC layer signaling, where the configuration information of the codebook includes At least one of the following: version information of the codebook, type information of the codebook, parameter information of the codebook, and port number information of the codebook; and a processing module, configured to determine a codebook for channel state feedback according to configuration information of the codebook set.
  • the communications module is further configured to: receive a reference signal for channel state information measurement from the base station; the processing module is further configured to determine channel state information that conforms to the configuration information of the codebook according to the reference signal, and control The communication module feeds back channel state information to the base station.
  • the port number information of the codebook includes port configuration information of a reference signal used for channel state information measurement, and the port configuration information is used to indicate the port number of the codebook.
  • the embodiment of the present invention provides a base station, which can implement the functions performed by the base station in the method design of the first aspect, and the functions can be implemented by using hardware or by executing corresponding software through hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the base station includes a processor and a communication interface configured to support the base station in performing the corresponding functions of the first aspect method described above.
  • the communication interface is used to support communication between the base station and a terminal or other network element.
  • the base station can also include a memory for coupling with the processor that holds the necessary program instructions and data for the base station.
  • the embodiment of the present invention provides a terminal, which can implement the functions performed by the terminal in the method design of the second aspect, and the function can be implemented by using hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the terminal includes a processor and a communication interface configured to support the terminal to perform corresponding functions in the above methods.
  • the communication interface is used to support communication between the terminal and a base station or other network elements.
  • the terminal can also include a memory for coupling with the processor that retains the program instructions and data necessary for the terminal.
  • an embodiment of the present invention provides a communication system, including the base station and the terminal in the foregoing aspect.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the base station, including a program designed to execute the first aspect described above.
  • an embodiment of the present invention provides a computer storage medium for storing the same for the terminal.
  • Computer software instructions comprising a program for performing the second aspect described above.
  • embodiments of the present invention provide a computer program product comprising instructions that, when executed by a computer, cause the computer to perform the functions performed by the base station in the method design described above.
  • embodiments of the present invention provide a computer program product comprising instructions that, when executed by a computer, cause a computer to perform functions performed by a terminal in the method design described above.
  • FIG. 1 is a schematic diagram of an application scenario based on a method for configuring a codebook according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a method for configuring a codebook according to an embodiment of the present invention
  • FIG. 3 is a schematic view showing an application effect of the method shown in FIG. 2;
  • FIG. 4 is a schematic diagram of another method for configuring a codebook according to an embodiment of the present invention.
  • FIG. 4A is a schematic diagram of an application effect of the method shown in FIG. 4;
  • FIG. 4B is a schematic view showing another application effect of the method shown in FIG. 4;
  • FIG. 5 is a schematic diagram of another method for configuring a codebook according to an embodiment of the present invention.
  • FIG. 6 is a structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 7 is a structural diagram of another base station according to an embodiment of the present invention.
  • FIG. 8 is a structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 9 is a structural diagram of another terminal according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of an application scenario based on a method for configuring a codebook according to an embodiment of the present invention.
  • a MIMO communication technology is employed between the base station 101 and the terminal 102.
  • the base station 101 can configure a set of N beams, and transmit data or CSI RS to the terminal 102 through one or more of the N beams.
  • the embodiment of the present invention provides a method for dynamically indicating a codebook, adapting to dynamic changes of CSI RS, and improving feedback efficiency.
  • the base station configures the configuration information of the codebook for the terminal, and the configuration information of the codebook includes at least one of the following: version information of the codebook, type information of the codebook, parameter information of the codebook, and port number information of the codebook.
  • the base station sends the configuration information of the codebook to the terminal through physical layer signaling or medium access control (MAC) layer signaling.
  • the MAC layer signaling may be specifically a medium access control control element (MAC CE) signaling.
  • the base station after transmitting the configuration information of the codebook to the terminal, the base station sends a reference signal for channel state information measurement to the terminal, where the configuration information of the codebook is used to instruct the terminal to feed back the configuration according to the codebook to the base station according to the reference signal.
  • Channel state information (CSI) of information is used to instruct the terminal to feed back the configuration according to the codebook to the base station according to the reference signal.
  • CSI Channel state information
  • the terminal configures configuration information of the new codebook for the terminal; the base station sends the configuration information of the new codebook to the terminal by using physical layer signaling or MAC layer signaling. That is to say, the base station can transmit the configuration information of the codebook by using the same transmission period as the CSI RS, thereby implementing dynamic configuration of the codebook.
  • the base station may also send the configuration information of the codebook to the terminal only before the configuration information of the codebook changes, thereby implementing dynamic configuration of the codebook and saving signaling overhead as much as possible.
  • the port number information of the codebook includes port configuration information for a reference signal for channel state information measurement, the port configuration information being used to indicate the number of ports of the codebook.
  • the configuration information of the CSI RS is used to indicate the configuration information of the codebook by setting the correspondence between the configuration information of the CSI RS and the configuration information of the codebook, and no additional information is needed. Signaling overhead can save transmission resources.
  • a combination of an explicit indication and an implicit indication may be adopted, that is, a part of the configuration information of the codebook is indicated by the configuration information of the CSIRS, and another part of the configuration information of the codebook is dynamically transmitted, thereby Implement dynamic configuration of the codebook.
  • FIG. 2 is a schematic diagram of a method for configuring a codebook according to an embodiment of the present invention. The method may be based on the application scenario shown in FIG. 1, and the base station dynamically configures a codebook to the terminal in an implicit manner. Referring to FIG. 2, the method is include:
  • Step 201 The base station configures the port number information of the codebook for the terminal.
  • Step 202 The base station sends the port configuration information of the CSI RS to the terminal by using physical layer signaling or MAC layer signaling, where the port configuration information is used to indicate the number of ports of the codebook.
  • Step 203 The terminal determines the number of ports of the codebook according to the port configuration information of the CSI RS.
  • the protocol stipulates that the number of ports of the codebook is the same as the number of ports of the CSI RS, and the terminal determines the number of ports of the codebook according to the port configuration information of the received CSI RS.
  • Step 204 The terminal determines a codebook set for channel state feedback according to the number of ports of the codebook.
  • the dynamically configured codebook can be matched with the dynamically configured CSI RS, and there is no additional signaling overhead.
  • FIG. 3 is a schematic diagram of the application effect of the method shown in FIG. 2.
  • the base station configures multiple sets of CSI RS resources for the user, and the number of ports of different CSI RS resources is different.
  • the terminal adaptively selects the codebook of the corresponding port number to perform channel state information feedback according to the received CSI RS.
  • FIG. 4 is a schematic diagram of another method for configuring a codebook according to an embodiment of the present invention. The method may be based on the application scenario shown in FIG. 1, and the base station dynamically configures the codebook to the terminal in an explicit manner.
  • FIG. Methods include:
  • Step 401 The base station configures configuration information of the codebook for the terminal, where the configuration information of the codebook includes at least one of the following: version information of the codebook, type information of the codebook, parameter information of the codebook, and port number information of the codebook.
  • the version of the codebook refers to a codebook defined by different protocol versions, such as an R8 4TX codebook and an R12 4Tx codebook.
  • the type of the codebook refers to a codebook corresponding to different feedback types.
  • the type of the codebook may include a codebook with a variable beamwidth and a codebook whose beamwidth is not adjustable.
  • the codebook whose beam width is not adjustable further includes a Class A codebook, a Class B codebook, and a linear combination codebook.
  • the type of codebook may include both a codebook of variable beamwidth and a codebook of non-adjustable beamwidth.
  • the base station indicates, by using the physical layer or the MAC CE layer signaling, that the terminal uses a codebook whose beam width is not adjustable (for example, a class B codebook or a linear combination codebook).
  • the base station uses the physical layer or MAC CE layer signaling to indicate to the terminal to generate a wider beam by using a codebook with a variable beam width.
  • the base station passes the information of the downlink data transmission (for example, the base station receives the negative feedback acknowledgment (NACK) of the terminal more frequently) or the base station receives the information that the beam feedback of the terminal is blocked, and the base station passes the physical layer or the MAC CE layer signaling.
  • the terminal is instructed to generate a wider beam by using a codebook with variable beamwidth to ensure robustness of data transmission.
  • the codebook parameter refers to the parameters required to generate the codebook.
  • the class A codebook includes N1, N2, O1, O2, config0-3, where N1 and N2 are the antenna numbers of two dimensions, and O1 and O2 are oversampling. Factor used to determine the codebook The total number of beams, config0-3, is used to indicate the selected beam pattern in the codebook.
  • the parameters include N1, N2, ⁇ P, C ⁇ . Where N1, N2 are the number of antennas in two dimensions, and ⁇ P, C ⁇ determines the codebook width.
  • Step 402 The base station sends configuration information of the codebook to the terminal by using physical layer signaling or MAC layer signaling.
  • the base station after transmitting the configuration information of the codebook to the terminal, the base station sends a reference signal for channel state information measurement to the terminal; the configuration information of the codebook is used to indicate that the terminal feeds back the conforming code configuration to the base station according to the reference signal. Channel state information for the message.
  • the base station configures multiple sets of CSI RS resources for the user, and the number of ports of different CSI RS resources is different.
  • the base station indicates the codebook port information to the terminal through the physical layer or MAC CE signaling before the terminal performs the CSI measurement.
  • the base station after determining that the configuration information of the codebook is changed, the base station configures configuration information of the new codebook for the terminal; the base station sends configuration information of the new codebook to the terminal by using physical layer signaling or MAC layer signaling. As shown in FIG. 4B, the base station configures multiple sets of CSI RS resources for the user, and the number of ports of different CSI RS resources is different. Before the CSI RS port changes, the base station indicates the code port information to the terminal through the physical layer or MAC CE signaling.
  • Step 403 The terminal determines a codebook set for channel state feedback according to the configuration information of the codebook.
  • the physical layer signaling or the MAC layer signaling indicates that the time interval can reach 1-10 scheduling units. Therefore, the configuration information that the base station can dynamically indicate the codebook to the terminal can be specifically implemented.
  • FIG. 5 is a schematic diagram of a communication method for configuring a codebook according to an embodiment of the present invention. The method may be based on the application scenario shown in FIG. 1 , where the base station dynamically configures the codebook to the terminal by using an implicit and explicit combination manner. Referring to Figure 5, the method includes:
  • Step 501 The base station sends the port configuration information of the CSI RS to the terminal by using physical layer signaling or MAC layer signaling.
  • Step 502 The terminal determines the number of ports of the codebook according to the port configuration information of the CSI RS.
  • Step 503 The base station sends configuration information of the codebook to the terminal by using physical layer signaling or MAC layer signaling, where the configuration information of the codebook includes at least one of the following: version information of the codebook, type information of the codebook, and parameters of the codebook. information.
  • Step 504 The terminal determines at least one of the following according to the configuration information of the codebook: a version of the codebook, a type of the codebook, and a parameter of the codebook.
  • Step 505 The terminal determines a codebook set for channel state feedback according to the number of ports of the codebook and/or at least one of the following: a version of the codebook, a type of the codebook, and a parameter of the codebook.
  • the steps 501 and 502 can be independently configured.
  • the steps 503 and 504 can be independently configured.
  • the execution order is not specifically limited. For example, steps 501 and 502 may be performed before steps 503 and 504 may be performed, or steps 503 and 504 may be performed first to perform steps 501 and 502.
  • FIG. 6 is a structural diagram of a base station according to an embodiment of the present invention.
  • the base station is configured to perform a method for configuring a codebook according to an embodiment of the present invention.
  • the base station includes: a processing module 601 and a communication module 602;
  • the processing module 601 is configured to configure configuration information of the codebook for the terminal, where the configuration information of the codebook includes at least one of the following: version information of the codebook, type information of the codebook, parameter information of the codebook, and port number information of the codebook.
  • the control communication module 602 transmits the configuration information of the codebook to the terminal through physical layer signaling or MAC layer signaling.
  • the processing module 601 is configured to: after the control communication module 602 sends the configuration information of the codebook to the terminal, to further send a reference signal for channel state information measurement to the terminal; the configuration information of the codebook is used to indicate The terminal feeds back channel state information conforming to the configuration information of the codebook to the base station according to the reference signal.
  • the processing module 601 is further configured to: after determining that the configuration information of the codebook changes, The terminal configures the configuration information of the new codebook, and the control communication module 602 sends the configuration information of the new codebook to the terminal through physical layer signaling or MAC layer signaling.
  • the port number information of the codebook includes port configuration information for a reference signal for channel state information measurement, and the port configuration information is used to indicate the number of ports of the codebook.
  • the base station may further include a storage module 603 for storing program codes and data of the base station.
  • the processing module 601 can be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 602 can be a communication interface, a transceiver, a transceiver circuit, etc., wherein the communication interface is a collective name and can include one or more interfaces.
  • the storage module 603 can be a memory.
  • the base station involved in the embodiment of the present invention may be the base station shown in FIG.
  • the base station 700 includes a processor 702, a communication interface 703, and a memory 701.
  • the base station 700 can also include a bus 704.
  • the communication interface 703, the processor 702, and the memory 701 may be connected to each other through a bus 704.
  • the bus 704 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (abbreviated). EISA) bus and so on.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus 704 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus.
  • Figure 8 is a structural diagram of a terminal according to an embodiment of the present invention, the terminal is used to perform the method for configuring a codebook provided by the embodiment of the present invention, the terminal includes: a processing module 801 and a communication module 802;
  • the communication module 802 is configured to receive configuration information of the codebook from the base station by using physical layer signaling or MAC layer signaling, where the configuration information of the codebook includes at least one of the following: version information of the codebook, type information of the codebook, and codebook. Parameter information and port number information of the codebook;
  • the processing module 801 is configured to determine a codebook set for channel state feedback according to the configuration information of the codebook.
  • the communication module 802 is further configured to: receive a reference signal for channel state information measurement from the base station; the processing module 801 is further configured to determine channel state information that conforms to the configuration information of the codebook according to the reference signal, and control the communication module. 802 feeds back channel state information to the base station.
  • the port number information of the codebook includes port configuration information for a reference signal for channel state information measurement, and the port configuration information is used to indicate the number of ports of the codebook.
  • the terminal may further include a storage module 803 for storing program codes and data of the terminal.
  • the processing module 801 can be a processor or a controller, and can be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific). Integrated Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor Logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 802 can be a communication interface, a transceiver, a transceiver circuit, etc., wherein the communication interface is a collective name and can include one or more interfaces.
  • the storage module 803 can be a memory.
  • the terminal involved in the embodiment of the present invention may be the terminal shown in FIG.
  • the terminal 900 includes a processor 902, a communication interface 903, and a memory 901.
  • the base station 900 can also include a bus 904.
  • the communication interface 903, the processor 902, and the memory 901 may be connected to each other through a bus 904.
  • the bus 904 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (abbreviated). EISA) bus and so on.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus 904 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 9, but it does not mean that there is only one bus or one type of bus.
  • the terminal may select a codebook for channel information feedback based on the configuration information of the codebook. For example, the terminal performs Precoding Matrix Indicator (PMI) feedback based on the configuration information of the codebook.
  • PMI Precoding Matrix Indicator
  • Non-transitory medium such as random access memory, read only memory, flash memory, hard disk, solid state disk, magnetic tape, floppy disk, optical disc, and any combination thereof.
  • Non-transitory medium such as random access memory, read only memory, flash memory, hard disk, solid state disk, magnetic tape, floppy disk, optical disc, and any combination thereof.

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

Abstract

La présente invention, selon certains modes de réalisation, concerne un procédé de configuration d'un livre de codes, une station de base et un terminal. Le procédé comprend les étapes suivantes : une station de base configure, pour un terminal, des informations de configuration concernant un livre de codes, les informations de configuration concernant le livre de codes comprenant au moins l'un des éléments suivants : des informations de version concernant le livre de codes, des informations de type concernant le livre de codes, des informations de paramètre concernant le livre de codes, et des informations de numéro de port concernant le livre de codes ; et la station de base envoie les informations de configuration concernant le livre de codes au terminal au moyen d'une signalisation de couche physique ou d'une signalisation de couche de commande d'accès au support (MAC). Dans les modes de réalisation de la présente invention, un livre de codes configuré dynamiquement peut correspondre à un signal de référence CSI RS configuré dynamiquement pour une mesure d'informations d'état de canal.
PCT/CN2017/115606 2016-12-30 2017-12-12 Procédé de configuration de livre de codes, station de base et terminal WO2018121239A1 (fr)

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