WO2020186511A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2020186511A1
WO2020186511A1 PCT/CN2019/079048 CN2019079048W WO2020186511A1 WO 2020186511 A1 WO2020186511 A1 WO 2020186511A1 CN 2019079048 W CN2019079048 W CN 2019079048W WO 2020186511 A1 WO2020186511 A1 WO 2020186511A1
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WO
WIPO (PCT)
Prior art keywords
antenna port
information
antenna
antenna ports
message
Prior art date
Application number
PCT/CN2019/079048
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English (en)
Chinese (zh)
Inventor
余健
杨常青
Original Assignee
华为技术有限公司
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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 PCT/CN2019/079048 priority Critical patent/WO2020186511A1/fr
Publication of WO2020186511A1 publication Critical patent/WO2020186511A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to embodiments related to the field of communication technologies, and in particular to a communication method and device.
  • the large-scale array antenna technology In the communication system, in order to increase the system capacity, the large-scale array antenna technology is usually adopted. Among them, in the large-scale array antenna technology, the number of antenna ports can reach 32 or more, which can greatly improve the ability to transmit multi-stream data in parallel. However, due to the large number of antenna ports, the power consumption of the base station is also very large. Therefore, how to reduce the power consumption of the base station and reduce the energy consumption of the base station are very important issues.
  • the base station configures the channel state information reference signal (CSI-RS) for the terminal device through the radio resource control (Radio resource control, RRC), so that the terminal device performs the channel state information (Channel state information reference signal, CSI-RS) according to the CSI-RS.
  • State information CSI
  • the base station reduces energy consumption by closing some antenna ports, it first turns off some antenna ports, and then sends the updated CSI-RS configuration to the terminal device through RRC signaling according to the antenna ports that are currently open. In this way, the terminal The device will perform CSI measurement again according to the updated CSI-RS configuration, and feed back the measured CSI information to the base station.
  • the system capacity may be reduced, resulting in a decrease in the data transmission rate, and an increase in transmission delay.
  • the embodiments of the present application provide a communication method and device, thereby helping to reduce the capacity loss caused by closing the antenna port, increase the data transmission rate, and reduce the data transmission delay.
  • an embodiment of the present application provides a communication method suitable for network equipment, and the method includes: sending a first message to a terminal device, where the first message is used to instruct the terminal device to measure X antenna ports Channel state information CSI information; a second message is received from the terminal device, the second message includes channel state information CSI information corresponding to at least one antenna port in the Y group of antenna ports, and each group of antennas in the Y group of antenna ports The number of antenna ports included in the port is less than or equal to X; where X and Y are both positive integers; according to the CSI information corresponding to at least one antenna port in the Y groups of antenna ports, it is determined to be closed from the X antenna ports Or open antenna port.
  • the terminal device after the terminal device measures the CSI information corresponding to the X antenna ports according to the first message, it will feed back the CSI information corresponding to the Y antenna ports among the X antenna ports to the network device, and the network device will be able to
  • the CSI information fed back by the terminal equipment determines the antenna port that needs to be closed or opened, which is beneficial to reduce the capacity loss caused by closing the antenna port, increase the data transmission rate, and reduce the data transmission delay, or when the antenna port is opened, It can increase the system capacity as much as possible and increase the data transmission rate.
  • the antenna port is dynamically closed, fast CSI measurement can be achieved, reducing measurement delay.
  • the reduction in measurement delay can match the QoS requirements of low-delay services on the one hand, and increase the transmission rate on the other hand.
  • the determining the closed or open antenna port from the X antenna ports according to the CSI information corresponding to at least one antenna port among the Y groups of antenna ports includes:
  • a closed or open antenna port is determined from the X antenna ports.
  • the network device can determine the target CSI information from the CSI information corresponding to the at least one set of antenna ports, thereby obtaining the target CSI information from the X antenna ports. Determining the antenna ports to be closed or opened can improve the accuracy of determining the antenna ports that need to be closed or opened.
  • the determining the closed or open antenna port from the X antenna ports according to the CSI information corresponding to at least one antenna port among the Y groups of antenna ports includes:
  • a closed or open antenna port is determined from the X antenna ports.
  • the network device locally pre-stores the CSI information corresponding to at least one set of antenna ports. After the network device receives the CSI information corresponding to at least one set of antenna ports among the Y groups of antenna ports sent by the terminal device, it can store locally The target CSI information is determined from the CSI information and the received CSI information, which improves the accuracy of target CSI determination.
  • the target CSI information includes first antenna port information
  • the determining the closed or open antenna port from the X antenna ports according to the target CSI information includes:
  • the antenna port to be closed or opened is determined according to the first antenna port information included in the target CSI information, thereby improving the efficiency of determining the antenna port that needs to be closed or opened.
  • the determining the closed or open antenna port from the X antenna ports according to the target CSI information includes:
  • a closed or open antenna port is determined from the X antenna ports.
  • the first message includes the number of closed or opened antenna ports.
  • the first message configured by the network device for the terminal device includes the number of antenna ports that need to be closed or opened, so that the terminal device will close or open the number of antenna ports that need to be closed or opened according to the preset number and/or configuration ,
  • To measure X antenna ports to determine the first antenna port information of the antenna port that needs to be closed and/or opened, so that when the antenna port is closed it is beneficial to reduce the capacity loss caused by closing the antenna port, Increase the data transmission rate and reduce the data transmission delay. Or when opening the antenna port, the system capacity can be increased as much as possible, and the data transmission rate can be increased.
  • the method further includes:
  • the third message includes at least one antenna port information set, and each antenna port information set in the at least one antenna port information set includes at least one third antenna port information;
  • the third message is used to instruct the terminal device to measure the CSI information of at least one antenna port corresponding to the third antenna port information, or the third message is used to instruct the terminal device to measure the CSI information except for the third antenna port.
  • each antenna port information set includes at least one third antenna port information.
  • the terminal device will measure the CSI information corresponding to the third antenna port information in each antenna port information set, so as to select the antenna port that needs to be closed or opened from the at least one third antenna port information according to the measurement result. Or, the terminal device will measure the CSI information corresponding to the antenna port information other than the third antenna port information in each antenna port information set, so as to determine from at least one piece of third antenna port information that needs to be turned off or turned on according to the measurement result. Antenna port. In this way, since the terminal device can measure the antenna port according to the antenna port information configured by the network device, the number and complexity of the measurement antenna port of the terminal device can be reduced, and the measurement efficiency of the terminal device can be improved.
  • the first message further includes fourth antenna port information; the fourth antenna port information is part of the antenna port information included in the at least one antenna port information set; A message is also used to instruct the terminal device to measure the CSI information of the antenna port corresponding to the fourth antenna port information.
  • the first message also includes the fourth antenna port information.
  • the terminal device only needs to measure the CSI information of the antenna port corresponding to the fourth antenna port information, which can further reduce the number and complexity of measuring antenna ports for the terminal device. It can improve the measurement efficiency of terminal equipment.
  • the antenna port information is bitmap information or row and column sequence number information; wherein, each flag bit in the bitmap information is used to indicate an antenna port; the row and column sequence number information is used to indicate an antenna port The row information and column information.
  • an embodiment of the present application provides a communication method applied to a terminal device, and the method includes:
  • the second message includes channel state information CSI information corresponding to at least one antenna port in the Y group of antenna ports, and the number of antenna ports included in each group of antenna ports in the Y group of antenna ports is less than or equal to X CSI information corresponding to at least one group of antenna ports in the Y groups of antenna ports is used to instruct the network device to determine the closed or open antenna ports from the X antenna ports;
  • X and Y are both positive integers.
  • the terminal device after the terminal device measures the CSI information corresponding to the X antenna ports according to the first message, it will feed back the CSI information corresponding to the Y antenna ports among the X antenna ports to the network device, and the network device will be able to
  • the CSI information fed back by the terminal equipment determines the antenna port that needs to be closed or opened, which is beneficial to reduce the capacity loss caused by closing the antenna port, increase the data transmission rate, and reduce the data transmission delay, or when the antenna port is opened, It can increase the system capacity as much as possible and increase the data transmission rate.
  • the antenna port when the antenna port is dynamically closed, fast CSI measurement can be realized, the measurement delay is reduced, and the measurement delay is reduced. On the one hand, it can match the QoS requirements of low-latency services, and on the other hand, it can increase the transmission rate.
  • the first message includes the number of antenna ports that need to be closed or opened.
  • the first message configured by the network device for the terminal device includes the identification information of the first configuration information and/or the number of antenna ports that need to be closed or opened.
  • the terminal device will be based on the preset number and/or Configure the number of antenna ports that need to be closed or opened, and measure X antenna ports to determine the first antenna port information of the antenna ports that need to be closed and/or opened, so that when the antenna ports are closed, it is helpful to reduce
  • the capacity loss caused by closing the antenna port increases the data transmission rate and reduces the data transmission delay. Or when opening the antenna port, the system capacity can be increased as much as possible, and the data transmission rate can be increased.
  • the method further includes:
  • the third message includes at least one antenna port information set, and each antenna port information set in the at least one antenna port information set includes at least one third antenna port information;
  • measure CSI information of at least one antenna port corresponding to the third antenna port information or measure CSI information of other antenna ports except the antenna port corresponding to the third antenna port information.
  • each antenna port information set is configured in the third message, and each antenna port information set includes at least one third antenna port information.
  • the terminal device will measure the CSI information corresponding to the third antenna port information in each antenna port information set, so as to obtain information from the
  • the antenna port that needs to be closed or opened is selected from the at least one third antenna port information.
  • the terminal device will measure the CSI information corresponding to other antenna port information except the third antenna port information in each antenna port information set, thereby selecting the one that needs to be turned off or turned on from at least one piece of third antenna port information according to the measurement result Antenna port.
  • the terminal device can measure the antenna port according to the antenna port information configured by the network device, the number and complexity of the measurement antenna port of the terminal device can be reduced, and the measurement efficiency of the terminal device can be improved.
  • the first message further includes fourth antenna port information; the fourth antenna port information is part of the antenna port information included in the at least one antenna port information set;
  • the measuring channel state information CSI information corresponding to X antenna ports according to the first message includes:
  • the CSI information of the antenna port corresponding to the fourth antenna port information is measured.
  • the first message also includes the fourth antenna port information.
  • the terminal device only needs to measure the CSI information of the antenna port corresponding to the fourth antenna port information, which can further reduce the number and complexity of measuring antenna ports for the terminal device. It can improve the measurement efficiency of terminal equipment.
  • the sending the second message includes:
  • the first antenna port information is carried in the CSI information corresponding to at least one group of antenna ports among the Y groups of antenna ports and sent to the network device.
  • the terminal device sends the first antenna port information to the network device, so that the network device determines the antenna port to be closed or opened, thereby improving the efficiency of determining the antenna port that needs to be closed or opened.
  • the first antenna port information of the antenna port that is determined to be closed or opened includes:
  • the quality information includes at least one of rank indicator RI, channel quality indicator CQI, signal-to-noise ratio SNR, and signal-to-dry ratio SINR;
  • the terminal device can determine the quality information of the channel after closing or opening part of the antenna ports, it can determine which antenna ports need to be closed or opened according to the measured quality information.
  • the resulting capacity loss can increase the data transmission rate and reduce the data transmission delay, or when the antenna port is turned on, the system capacity and the data transmission rate can be increased as much as possible.
  • the first antenna port information is bitmap information or row and column sequence number information; wherein each flag in the bitmap information is used to indicate an antenna port; the row and column sequence number information is used Yu represents the row information and column information of the antenna port.
  • bitmap information or row and column sequence number information is used to represent the first index information, the representation of the first index information is simpler.
  • an embodiment of the present application provides a communication device, including:
  • a sending module configured to send a first message to a terminal device, where the first message is used to instruct the terminal device to measure channel state information CSI information corresponding to X antenna ports;
  • the receiving module is configured to receive a second message from the terminal device, the second message including channel state information CSI information corresponding to at least one group of antenna ports in the Y group of antenna ports, and each group of antenna ports in the Y group of antenna ports
  • the number of antenna ports included is less than or equal to X; where X and Y are both positive integers;
  • the processing module is configured to determine the closed or open antenna port from the X antenna ports according to the CSI information corresponding to at least one antenna port among the Y groups of antenna ports.
  • the processing module is specifically used for:
  • a closed or open antenna port is determined from the X antenna ports.
  • the processing module is specifically used for:
  • a closed or open antenna port is determined from the X antenna ports.
  • the target CSI information includes first antenna port information
  • the processing module is specifically used for:
  • the processing module is specifically used for:
  • a closed or open antenna port is determined from the X antenna ports.
  • the sending module is also used for:
  • the third message includes at least one antenna port information set, and each antenna port information set in the at least one antenna port information set includes at least one third antenna port information;
  • the third message is used to instruct the terminal device to measure the CSI information of at least one antenna port corresponding to the third antenna port information, or the third message is used to instruct the terminal device to measure the CSI information except for the third antenna port.
  • the first message further includes fourth antenna port information; the fourth antenna port information is part of the antenna port information included in the at least one antenna port information set; A message is also used to instruct the terminal device to measure the CSI information of the antenna port corresponding to the fourth antenna port information.
  • an embodiment of the present application provides a communication device, including:
  • a processing module configured to measure the channel state information CSI information corresponding to the X antenna ports according to the first message
  • the sending module is configured to send a second message, the second message including channel state information CSI information corresponding to at least one group of antenna ports in the Y group of antenna ports, and the antenna ports included in each group of antenna ports in the Y group of antenna ports The number is less than or equal to X, and the channel state information CSI information corresponding to at least one antenna port in the Y groups of antenna ports is used to instruct the network device to determine the closed or open antenna port from the X antenna ports;
  • X and Y are both positive integers.
  • the receiving module is further configured to receive a third message, the third message includes at least one antenna port information set, and each antenna port information in the at least one antenna port information set The set includes at least one third antenna port information;
  • the processing module is further configured to measure the CSI information of at least one antenna port corresponding to the third antenna port information according to the third message, or to measure CSI information other than the antenna port corresponding to the third antenna port information CSI information of other antenna ports.
  • the first message further includes fourth antenna port information; the fourth antenna port information is part of the antenna port information included in the at least one antenna port information set;
  • the processing module is specifically used for:
  • the CSI information of the antenna port corresponding to the fourth antenna port information is measured.
  • the processing module is further configured to: determine the first antenna port information of the closed or open antenna port;
  • the sending module is further configured to carry the first antenna port information in the CSI information corresponding to at least one group of antenna ports in the Y group of antenna ports and send it to the network device.
  • the processing module is specifically used for:
  • the quality information includes at least one of rank indicator RI, channel quality indicator CQI, signal-to-noise ratio SNR, and signal-to-dry ratio SINR;
  • an embodiment of the present application provides a computer-readable storage medium, including: computer software instructions;
  • the device When the computer software instruction runs in a communication device or a chip built in the communication device, the device is caused to execute the communication method as described in the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium, including: computer software instructions;
  • the device When the computer software instruction runs in a communication device or a chip built in the communication device, the device is caused to execute the communication method as described in the second aspect.
  • the embodiments of the present application also provide a computer program product containing instructions, when the computer program product runs in a communication device, the communication device executes the methods described in the first to second aspects.
  • inventions of the present application provide a chip system.
  • the chip system includes a processor and may also include a memory for implementing the functions of the network device or the terminal device in the foregoing method.
  • the chip system can be composed of chips, or can include chips and other discrete devices.
  • the network device sends a first message to the terminal device, and the first message is used to instruct the terminal device to measure the channel state information CSI information corresponding to the X antenna ports, and receive the second message from the terminal device ,
  • the second message includes CSI information corresponding to at least one group of antenna ports in the Y group of antenna ports, the number of antenna ports included in each group of antenna ports in the Y group of antenna ports is less than or equal to X, and then according to at least one group of antenna ports
  • the CSI information corresponding to a group of antenna ports determines the closed or open antenna port from the X antenna ports.
  • the terminal device Since the terminal device measures the CSI information corresponding to the X antenna ports according to the first message, it will feed back the CSI information corresponding to the Y antenna ports among the X antenna ports to the network device, and the network device will be able to feed back the CSI information according to the terminal device Determine the antenna port that needs to be closed or opened, which helps reduce the capacity loss caused by closing the antenna port, increase the data transmission rate, and reduce the data transmission delay, or when the antenna port is opened, the system can be improved as much as possible Capacity, increase the data transmission rate.
  • the names of the terminal equipment, network equipment, and communication device do not limit the equipment itself, and in actual implementation, these equipment may appear under other names. As long as the function of each device is similar to the embodiment of the present application, it falls within the scope of the claims of the present application and equivalent technologies.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of this application.
  • Figure 2 is a schematic diagram of a two-dimensional distribution of antenna ports
  • Figure 3a is a schematic diagram of closing the antenna port
  • Figure 3b is another schematic diagram of closing the antenna port
  • Figure 3c is another schematic diagram of closing the antenna port
  • Figure 3d is a schematic diagram of closing the antenna port
  • Figure 4 is a signaling interaction diagram of the communication method of this application.
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a communication device according to an embodiment of this application.
  • Embodiment 2 of a communication device provided by an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of Embodiment 3 of a communication device provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of Embodiment 4 of a communication device provided by an embodiment of this application.
  • a terminal device can be a wireless terminal device that can receive network device scheduling and instruction information.
  • a wireless terminal device can be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function, or a connection Other processing equipment to the wireless modem.
  • a wireless terminal device can communicate with one or more core networks or the Internet via a wireless access network (e.g., radio access network, RAN).
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone). , Mobile phones), computers, and data cards, for example, may be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station (remote station), access point ( access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (subscriber station, SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc.
  • the wireless terminal device may also be a wearable device and a next-generation communication system, for example, a terminal device in a 5G network or a terminal device in a future evolved PLMN network, a terminal device in an NR communication system, and so on.
  • a next-generation communication system for example, a terminal device in a 5G network or a terminal device in a future evolved PLMN network, a terminal device in an NR communication system, and so on.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • terminal equipment may also include drones, such as airborne communication equipment on drones.
  • a network device can be a device used to communicate with a mobile device.
  • the network device can be an AP in a wireless local area network (WLAN), a global system for mobile communications (GSM), or code division multiple access (GSM).
  • WLAN wireless local area network
  • GSM global system for mobile communications
  • GSM code division multiple access
  • the base transceiver station (BTS) in Code Division Multiple Access (CDMA) can also be the base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or the long-term evolution ( Long Term Evolution (LTE) evolved Node B (evolutional Node B, eNB or eNodeB), or relay station or access point, or vehicle-mounted equipment, wearable equipment, and network equipment in the future 5G network or the future evolution of public land mobile Network equipment in the public land mobile network (PLMN) network, or gNodeB in the NR system, etc.
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • eNB Long Term Evolution
  • eNodeB evolved Node B
  • relay station or access point or vehicle-mounted equipment, wearable equipment, and network equipment in the future 5G network or the future evolution of public land mobile Network equipment in the public land mobile network (PLMN) network, or gNodeB in the NR system, etc.
  • PLMN public
  • the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a network equipment. (E.g. base station)
  • the corresponding cell the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: metro cell, micro cell, and pico cell (pico cell), femto cell (femto cell), etc., these small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the network device may be another device that provides wireless communication functions for the terminal device.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • a device that provides a wireless communication function for a terminal device is called a network device.
  • the unit in this application refers to a functional unit or a logical unit. It can be in the form of software, and its function is realized by the processor executing the program code; it can also be in the form of hardware.
  • Multiple refers to two or more, and other measure words are similar.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects are in an “or” relationship.
  • the range described as “above” or “below” includes boundary points.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of this application.
  • the communication system may include at least one network device 10 and at least one terminal device located within the coverage area of the network device 10.
  • the terminal device can be a fixed location or movable.
  • Fig. 1 is only a schematic diagram.
  • the communication system may also include other devices, such as a core network device (not shown in Fig. 1), and the network device is connected to the core network device in a wireless or wired manner.
  • the core network equipment and the network equipment can be separate and different physical equipment, the functions of the core network equipment and the logical functions of the network equipment can also be integrated on the same physical equipment, or part of the core network equipment can be integrated on the same physical equipment
  • the functions and functions of some network devices may also include other network equipment, such as wireless relay equipment and wireless backhaul equipment, which are not shown in FIG. 1.
  • the embodiment of the present application does not limit the number of core network equipment, network equipment, and terminal equipment included in the communication system.
  • the network device 10 may send downlink information to one or some of the terminal devices 11 to 16.
  • the terminal device 11 to the terminal device 15 that can directly communicate with the network device 10 may also send uplink information to the network device 10 separately or at the same time.
  • the aforementioned communication system may be a 5G new radio (5G new radio, 5G NR) system.
  • 5G new radio 5G new radio, 5G NR
  • the embodiments of this application can also be applied to other communication systems, as long as there is an entity in the communication system that can send a first message to another entity, and the other entity can measure the CSI information corresponding to X antenna ports according to the first message, and Sending a second message to the entity, the second message including CSI information corresponding to at least one antenna port in the Y groups of antenna ports, and the number of antenna ports included in each group of antenna ports in the Y groups of antenna ports is less than or equal to X,
  • the entity can determine the closed or open antenna port from the X antenna ports according to the CSI information corresponding to at least one antenna port in the Y groups of antenna ports.
  • the terminal device 14 to the terminal device 16 can also form a device-to-device communication system.
  • the terminal device 15 as the sender can send information to the terminal device 14 and the terminal device 16.
  • One or more of the terminal devices send information, and correspondingly, the terminal device 14 and the terminal device 16 can send data to the terminal device 15 separately or simultaneously.
  • Network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on airborne aircraft, balloons, and satellites.
  • the embodiments of the present application do not limit the application scenarios of network equipment and terminal equipment.
  • the antenna arrays of most current network devices are two-dimensional antenna arrays, that is, antenna array elements that include horizontal and vertical dimensions.
  • the antenna array element can be connected to a radio frequency channel through a certain virtualization method. Assuming that each radio frequency channel corresponds to an antenna port, each antenna port can be represented by a row number and a column number.
  • Figure 2 is a schematic diagram of the two-dimensional distribution of antenna ports.
  • N1 and N2 are shown in Table 1 below.
  • P CSI-RS is the total number of antenna ports, that is, the total number of CSI-RS ports.
  • the value of N1 and N2 will directly affect the choice of codebook, and then affect the accuracy of CSI measurement Sex.
  • the main purpose of closing the antenna port is to reduce the energy consumption of the network device, but when the antenna port is closed, the number of antenna ports is also reduced, which will cause a certain capacity loss. Take the 32 port as an example.
  • the possible closing methods are shown in Figure 3a-3d.
  • Figure 3a the antenna ports corresponding to rows 3 and 4 are closed.
  • Figure 3b the antenna ports corresponding to rows 2 and 4 are closed.
  • Figure 3c the antenna ports corresponding to rows 3 and 4 are closed.
  • the antenna ports corresponding to the 4 columns, in Figure 3d, the antenna ports corresponding to the second and fourth columns are closed.
  • the CSI measured by the terminal device will also be different.
  • the number of antenna ports in the horizontal and vertical dimensions will directly affect the beam width in the horizontal and vertical dimensions. For example, in Figure 3a, since the antenna ports corresponding to rows 3 and 4 are closed, there are two antenna ports in the vertical dimension and 4 antenna ports in the horizontal dimension. After precoding and weighting, the vertical dimension beam It will be wider, and the beam in the horizontal dimension will be narrower. For example, when two terminals distributed on a tall building perform multi-user pairing, a narrower vertical beam is required to avoid interference.
  • the CSI measured by the terminal equipment will be different, the data transmission speed will also be different, and the final energy consumption of the network equipment will also be different.
  • the base station since the arrival of the services of the network equipment is random, and the quality of service (QoS) requirements of different services will be different. Therefore, when the base station closes the antenna port according to the combination in Table 1, it may cause a decrease in system capacity, resulting in a decrease in data transmission rate and an increase in transmission delay.
  • QoS quality of service
  • the network device sends a first message to the terminal device.
  • the first message is used to instruct the terminal device to measure the channel state information CSI information corresponding to the X antenna ports.
  • receiving a second message from the terminal device the second message including CSI information corresponding to at least one group of antenna ports in the Y group of antenna ports, and the number of antenna ports included in each group of antenna ports in the Y group of antenna ports is less than or equal to X, Then, according to the CSI information corresponding to at least one antenna port in the Y groups of antenna ports, the closed or open antenna port is determined from the X antenna ports.
  • the terminal device Since the terminal device measures the CSI information corresponding to the X antenna ports according to the first message, it will feed back the CSI information corresponding to the Y antenna ports among the X antenna ports to the network device, and the network device will be able to feed back the CSI information according to the terminal device Dynamically determine the antenna ports that need to be closed or opened, which can better match the dynamic changes of the load and the QoS requirements of the service, which not only reduces the power consumption of network equipment, but also helps reduce the capacity caused by closing the antenna port Loss, increase the data transmission rate and reduce the data transmission delay.
  • Figure 4 is a signaling interaction diagram of the communication method of this application. Based on the system architecture shown in FIG. 1, as shown in FIG. 4, in this embodiment, the communication method may include the following steps:
  • Step 401 The network device sends the first message to the terminal device.
  • the network device may send a fourth message to the terminal device.
  • the fourth message includes m pieces of first configuration information, and the fourth message is used to represent The terminal device configures m pieces of first configuration information.
  • the m pieces of first configuration information are used to instruct the terminal device to measure the CSI information corresponding to the X antenna ports.
  • X is all antenna ports or part of all antenna ports.
  • the fourth message may be, for example, an RRC message or other high-level signaling.
  • high-level signaling may refer to signaling sent by a high-level protocol layer, and the high-level protocol layer is at least one protocol layer above the physical layer.
  • the high-level protocol layer may specifically include at least one of the following protocol layers: Medium Access Control (MAC) layer, Radio Link Control (RLC) layer, Packet Data Convergence Protocol (Packet Data Convergence) Protocol, PDCP) layer, radio resource control (RRC) layer, non-access stratum (NAS), etc.
  • MAC Medium Access Control
  • RLC Radio Link Control
  • Packet Data Convergence Protocol Packet Data Convergence Protocol
  • PDCP Packet Data Convergence Protocol
  • RRC radio resource control
  • NAS non-access stratum
  • the network device may pre-configure m pieces of first configuration information for the terminal device through the fourth message.
  • the terminal device will activate m pieces of first configuration information according to the first message, and measure the CSI information corresponding to the X antenna ports according to the activated m pieces of first configuration information.
  • the fourth message also includes CSI-MeasConfig, CSI resource configuration (CSI-Resource Config), and CSI report configuration information unit (CSI-Report Config IE), etc.
  • the CSI-Report Config IE includes the CSI content that the terminal device needs to feed back to the network device, such as channel quality information (channel quality indicator, CQI), rank indicator (rank indicator, RI), and precoding matrix indicator (precoding matrix indicator). , PMI) one or more combinations.
  • channel quality information channel quality indicator, CQI
  • rank indicator rank indicator
  • precoding matrix indicator precoding matrix indicator
  • the terminal device After receiving the first message, the terminal device will measure the CSI information corresponding to the X antenna ports according to the first message, and send it to the network device according to the CSI content that the terminal device needs to feed back to the network device included in the CSI-Report Configure IE
  • the network device In the CSI feedback message, the network device will allocate time-frequency resources, select a modulation and coding scheme (Modulation and Coding Scheme, MCS), and select the size of a data transmission block according to the received CSI information, so as to complete data scheduling and transmission.
  • MCS Modulation and Coding Scheme
  • the fourth message further includes second configuration information, and the second configuration information is used to instruct the terminal device to measure CSI corresponding to all antenna ports.
  • the fourth message includes the first configuration information and the second configuration information.
  • the second configuration information is in an active state.
  • the terminal device can Second, the configuration information measures CSI corresponding to all antenna ports.
  • the network device When the network device determines that some antenna ports need to be closed to save power consumption, the network device will send a first message to the terminal device.
  • the first message can be downlink control information (DCI) or other messages.
  • DCI downlink control information
  • the first message is used to instruct the terminal device to measure the channel state information CSI information corresponding to the X antenna ports, where X is a positive integer.
  • Step 402 The terminal device measures the CSI information corresponding to the X antenna ports according to the first message.
  • the terminal device After receiving the first message sent by the network device, the terminal device will activate m pieces of pre-configured first configuration information according to the first message, and measure X according to the activated m pieces of first configuration information.
  • the terminal device when the terminal device activates m pieces of first configuration information, the second configuration information may also be deactivated. Wherein, deactivating the second configuration information can be understood as not using the second configuration information. In this way, the terminal device will only measure the CSI information of the X antenna ports according to the first configuration information in the active state.
  • the terminal device when the terminal device activates m pieces of first configuration information, it may also keep the second configuration information active. In this way, the terminal device will need to send two pieces of information to the network device for the first configuration information and the second configuration information respectively.
  • a set of CSI information the specific content is introduced below.
  • the terminal device After the terminal device activates m pieces of first configuration information according to the first message, it measures the CSI information corresponding to the X antenna ports according to each first configuration information, which can be understood as the terminal device according to each first configuration information, from Select X antenna ports from all antenna ports, and measure the CSI information corresponding to the selected X antenna ports. It can also be understood that the terminal device measures the CSI information corresponding to all X antenna ports according to each first configuration information.
  • the terminal device can determine the antenna port to be measured and the first antenna port information of the antenna port to be closed or opened in the following ways:
  • the first type the first message includes identification information of the first configuration information and/or the number of antenna ports that need to be closed or opened.
  • the first message may include identification information of the first configuration information, and the identification information of the first configuration information is used to indicate that the terminal device needs to feed back to the network device the first antenna port of the antenna port that needs to be closed or opened; or, The first message may also include the number of antenna ports that need to be closed or opened; or, the first message may also include identification information of the first configuration information and the number of antenna ports that need to be closed or opened.
  • the identification information of the first configuration information may be defined as close/open antenna port index information (Report Antenna Port Off Index), and the identification information of the first configuration information may be indicated by 1 bit or multiple bits.
  • the terminal device detects the identification information in the first configuration information, it needs to include the antenna port index that needs to be turned off/on in the feedback CSI content, for example, it can be defined as the antenna port index (Antenna Port Off Index) to change The index of the determined antenna port that needs to be closed/opened is fed back to the network device.
  • the terminal device may select X antenna ports from all antenna ports, and measure the CSI information corresponding to the selected X antenna ports, so as to determine Output the first antenna port information of the antenna port that needs to be closed or opened.
  • the terminal device can determine the quality information of the channel by measuring the CSI information of X antenna ports to determine the first antenna port information of the antenna port that needs to be closed or opened according to the quality information, where the quality information may It includes at least one of rank indicator RI, channel quality indicator (CQI), signal-to-noise ratio (signal-to-noise ratio; SNR), and signal-to-interference plus noise ratio (SINR).
  • the value of X may be a value based on experience or actual conditions, for example, it may be 16 or 32, etc. The specific value of X is not limited in the embodiment of the present application.
  • the n antenna ports with the smallest measured RI can be determined as the antenna ports that need to be closed, or the n antenna ports with the smallest CQI can be determined as the antenna ports that need to be closed, or The n antenna ports with the smallest measured SNR or SINR are determined as the antenna ports that need to be closed.
  • n is a preset value or a value configured by the network device. Let n be 8, which means that the network device needs to close 8 antenna ports to reduce power consumption.
  • the terminal device can measure the channel quality after turning off 8 antenna ports among the 32 antenna ports according to the values of N1 and N2 in Table 1, and then select the 8 antenna ports with the smallest RI, or , Select the 8 antenna ports with the smallest CQI, determine these 8 antenna ports as the antenna ports that need to be closed, and determine the antenna port information of these 8 antenna ports as the first antenna port information, or you can select the smallest SNR or SINR And determine the 8 antenna ports as the antenna ports that need to be closed, and determine the antenna port information of the 8 antenna ports as the first antenna port information.
  • the terminal device determines the m antenna ports with the largest measured RI as the antennas that need to be turned on Port, or determine the m antenna ports with the largest measured CQI as the antenna ports that need to be turned on, or determine the m antenna ports with the largest measured SNR or SINR as the antenna ports that need to be turned on, and use these antenna ports
  • the antenna port information of is determined as the first antenna port information, where m is a preset value or a value configured by a network device.
  • the first message may also include the number of antenna ports that need to be closed or opened, where closing or opening an antenna port can also be understood as closing or opening a radio frequency channel.
  • the "Nrof Antenna PortOff" field can be used in CSI-ReportConfig IE to indicate that its value is the number of antenna ports that need to be closed or opened, and its value can be 32, 24, 16, 12, 8, 4, or 2, etc. For example, if the current total number of antenna ports is 32, when NrofAntennaPortOff is configured as 16, it means that 16 of the 32 antenna ports are to be closed.
  • the terminal device measures the CSI information of the X antenna ports according to the number of antenna ports that need to be closed or opened to determine the first antenna port information of the antenna ports that need to be closed or opened, which is the same as in the above first message
  • the identification information of the first configuration information is included, the method for determining the first antenna port information is similar. For details, reference may be made to the description in the foregoing embodiment, which is not repeated here.
  • the terminal device when the identification information of the first configuration information and the number of antenna ports that need to be closed or opened are included in the first message, the terminal device will measure the X antenna ports according to the number of antenna ports that need to be closed or opened. , Thereby determining the first antenna port information of the antenna port that needs to be closed or opened, and feeding back the determined first antenna port information to the network device according to the identification information of the first configuration information.
  • the method for determining the first antenna port information is similar to the method for determining in the foregoing embodiments, and will not be repeated here.
  • the first message sent by the network device to the terminal device includes the identification information of the first configuration information and/or the number of antenna ports that need to be closed or opened.
  • the terminal device will be based on the preset number and/or Configure the number of antenna ports that need to be closed or opened, and measure X antenna ports to determine the first antenna port information of the antenna ports that need to be closed and/or opened, so that when the antenna ports are closed, it is helpful to reduce
  • the capacity loss caused by closing the antenna port increases the data transmission rate and reduces the data transmission delay. Or when opening the antenna port, the system capacity can be increased as much as possible, and the data transmission rate can be increased.
  • the second type the network device sends a third message to the terminal device, the third message may also include at least one antenna port information set, and each antenna port information set in the at least one antenna port information set includes at least one third antenna Port information, the third message is used to instruct the terminal device to measure the CSI information of the antenna port corresponding to each third antenna port, or the third message is used to instruct the terminal device to measure the antenna port other than the antenna port corresponding to the third antenna port information CSI information of other antenna ports.
  • the third message may be the same message as the first message, or may be a message different from the first message, for example, the third message may be an RRC message.
  • the antenna port information may be index information of the antenna port, for example.
  • each antenna port information set includes at least one third antenna port information.
  • the terminal device will measure the CSI information corresponding to the third antenna port information in each antenna port information set, so as to select the antenna port that needs to be closed or opened from the at least one third antenna port information according to the measurement result.
  • the terminal device will measure the CSI information corresponding to other antenna port information except the third antenna port information in each antenna port information set, thereby selecting the one that needs to be turned off or turned on from at least one piece of third antenna port information according to the measurement result Antenna port.
  • the terminal device can measure the antenna port according to the antenna port information configured by the network device, the number and complexity of the measurement antenna port of the terminal device can be reduced and the measurement efficiency of the terminal device can be improved.
  • the third message includes 3 antenna port information sets, antenna port information set 1 includes antenna port 1, antenna port 3 and antenna port 5, and antenna port information set 2 includes antenna port 6, antenna port 8 and antenna Port 10, antenna port information set 3 includes antenna port 15, antenna port 16, and antenna port 20.
  • the terminal device will measure the CSI information corresponding to antenna port 1, antenna port 3 and antenna port 5, the CSI information corresponding to antenna port 6, antenna port 8 and antenna port 10, and antenna port 15, antenna CSI information corresponding to port 16 and antenna port 20, so that the terminal device can determine the first antenna port information of the antenna port that needs to be closed or opened according to the quality information of the channel, such as determining that the first antenna port information is the antenna port 1.
  • the method for determining the first antenna port information is similar to the method in the foregoing embodiment, and will not be repeated here.
  • the network device may indicate at least one set of antenna port information through the first field in the third message, where the bit length of the first field may be Bits, where Is the rounded up symbol, and K is the number of antenna port information sets.
  • K is the number of antenna port information sets.
  • K is the number of antenna port information sets.
  • the terminal device will measure the CSI information of the antenna port corresponding to the antenna port information according to the antenna port information in the antenna port information set, or measure other CSI information of antenna ports other than the antenna port corresponding to the antenna port information.
  • the terminal device can measure the antenna port according to the antenna port information set configured by the network device, the number and complexity of the measurement antenna port of the terminal device can be reduced, and the measurement efficiency of the terminal device can be improved.
  • the first message sent by the network device to the terminal device further includes fourth antenna port information, and the fourth antenna port information is at least one antenna
  • the first message is also used to instruct the terminal device to measure the CSI information of the antenna port corresponding to the fourth antenna port information.
  • the network device may also send the first message , Send the fourth antenna port information to the terminal device, where the fourth antenna port information is part of the third antenna port information pre-configured by the network device for the terminal device, so that the terminal device only needs to measure the fourth antenna port information
  • the CSI information of the corresponding antenna port is sufficient.
  • the third type when the network device configures at least two pieces of first configuration information for the terminal device, the network device does not need to configure the antenna port information set for the terminal device.
  • each first configuration information can correspond to a set of antenna ports information.
  • the terminal device After receiving at least two pieces of first configuration information, the terminal device can determine the antenna port information corresponding to each first configuration information according to the correspondence between the preset configuration information and the antenna port information, so that the antenna port information can be measured The CSI information of the corresponding antenna port, or the CSI information of the antenna ports other than the antenna port corresponding to the antenna port information is measured, so as to determine the first antenna port information of the antenna port that needs to be closed or opened.
  • each piece of first configuration information can correspond to a set of antenna port information
  • the terminal device can determine according to the correspondence between the preset configuration information and antenna port information
  • the antenna port information corresponding to each first configuration information so that the CSI information of the antenna port corresponding to the antenna port information can be measured, or the CSI information of the antenna ports other than the antenna port corresponding to the antenna port information can be measured.
  • the first antenna port information of the antenna port that needs to be closed or opened is determined, thereby reducing the complexity of measuring the antenna port by the terminal device and improving the measurement efficiency of the terminal device.
  • the configuration information activated by the terminal device includes first configuration information 1, first configuration information 2, and first configuration information 3.
  • the antenna port information corresponding to the first configuration information 1 includes antenna port 2, antenna port 4, and antenna port 10.
  • the antenna port information corresponding to the first configuration information 2 includes antenna port 3, antenna port 6, and antenna port 9.
  • the antenna port information corresponding to configuration information 3 includes antenna port 11, antenna port 15 and antenna port 20.
  • the terminal device measures the CSI information corresponding to antenna port 2, antenna port 4 and antenna port 10, antenna port 3, antenna port 6 and antenna CSI information corresponding to port 9 and CSI information corresponding to antenna port 11, antenna port 15 and antenna port 20. In this way, the terminal device can determine the first antenna port information of the antenna port that needs to be closed or opened according to the channel quality information.
  • the first antenna port information is determined to be antenna port 11, antenna port 15, and antenna port 20.
  • the method for determining the first antenna port information is similar to the method in the foregoing embodiment, and will not be repeated here.
  • the terminal device can also determine at least one set of antenna ports, for example, the antenna ports of antenna port 11, antenna port 15 and antenna port 20, and antenna port 3, antenna port 6 and antenna port 9
  • the information is determined as the first antenna port information of the antenna port that needs to be closed or opened.
  • the terminal device may carry the first antenna port information in the CSI information corresponding to at least one antenna port among the Y groups of antenna ports for transmission , For example, can be sent to a network device.
  • the first antenna port information may be bitmap information or row and column sequence number information; wherein, each flag in the bitmap information is used to indicate an antenna port; the row and column sequence number information is used to indicate the row information of the antenna port And column information.
  • the first antenna port information is represented by a bitmap indication method
  • the number of antenna ports measured by the terminal device is different
  • the number of flag bits in the bitmap is also different.
  • the bitmap method is used to represent the first antenna
  • the indication mode of the port information is shown in Table 2.
  • bitmap information or the row and column sequence number information is used to represent the first antenna port information, the way of representing the first antenna port information is simpler.
  • Step 403 The terminal device sends a second message to the network device.
  • the second message includes CSI information corresponding to at least one group of antenna ports in the Y group of antenna ports, and the number of antenna ports included in each group of antenna ports in the Y group of antenna ports is less than Or equal to X.
  • the terminal device will return a second message to the network device after measuring the CSI information corresponding to the X antenna ports.
  • the second message may be, for example, a CSI feedback message.
  • the second message includes CSI information corresponding to at least one antenna port in the Y groups of antenna ports, and each group of antenna ports includes at least one antenna port.
  • the second message includes the CSI information corresponding to each of the two groups of antenna ports, namely the CSI information corresponding to antenna port 3, antenna port 4, and antenna port 6, as well as antenna port 5, antenna port 7, and antenna port. 10.
  • the second message may also only include CSI information corresponding to a group of antenna ports.
  • the number of antenna ports included in each group of antenna ports in the Y group of antenna ports is less than or equal to X, that is, the antenna ports included in each group of antenna ports in the Y group of antenna ports are all of the X antenna ports.
  • Step 404 According to the CSI information corresponding to at least one antenna port in the Y groups of antenna ports, determine the closed or open antenna port from the X antenna ports.
  • the network device After the network device receives the second message sent by the terminal device, it can determine from the X antenna ports according to the CSI information corresponding to at least one of the Y groups of antenna ports carried in the second message A closed or open antenna port, where X and Y are both positive integers. Since the network device can determine the antenna port that needs to be closed or opened based on the CSI information fed back by the terminal device, it is beneficial to reduce the capacity loss caused by closing the antenna port, increase the data transmission rate, and reduce the data transmission delay.
  • the network device may determine the target CSI information from the CSI information corresponding to at least one antenna port in the Y antenna ports, and determine whether to turn off or turn on the X antenna ports according to the target CSI information Antenna port.
  • the network device will determine the target CSI information according to the CSI information. For example, if the network device needs to turn off some antenna ports, the CSI with the smallest CQI can be determined as the target CSI; if the network device needs to turn on some antenna ports, the CSI with the largest CQI can be determined as the target CSI.
  • the network device determines the CSI information corresponding to this group of antenna ports as the target CSI.
  • the antenna port corresponding to the target CSI is determined as the antenna port that needs to be turned off or turned on.
  • the network device may also obtain the CSI information corresponding to the M groups of antenna ports locally, and according to the CSI information corresponding to the M groups of antenna ports, and the Y groups of antenna ports corresponding to at least one antenna port CSI information, determine the target CSI information, and then determine the closed or open antenna port from the X antenna ports according to the target CSI information.
  • the network device locally pre-stores the CSI information corresponding to at least one set of antenna ports. After receiving the CSI information corresponding to at least one set of antenna ports among the Y sets of antenna ports sent by the terminal device, the network device can obtain the locally stored CSI From the information and the received CSI information, the target CSI information is determined. For example, if the network device needs to turn off some antenna ports, the CSI with the smallest CQI can be determined as the target CSI; if the network device needs to turn on some antenna ports, the CSI with the largest CQI can be determined as the target CSI.
  • the network device After determining the target CSI information, for the several situations in step 402, the network device will determine the antenna ports that need to be closed or opened according to the following methods:
  • the first type when the first message includes the identification information of the first configuration information and/or the number of antenna ports that need to be closed or opened, the terminal device determines the first antenna port information of the antenna ports that need to be closed or opened Then, the first antenna port information will be carried in the CSI information corresponding to at least one antenna port among the Y groups of antenna ports and sent to the network device. After determining the target CSI information, the network device may determine the antenna port that needs to be closed or opened according to the first antenna port information of the antenna port included in the target CSI information.
  • the antenna port corresponding to the first antenna port information may be directly determined as the antenna port that needs to be closed or opened, thereby improving the efficiency of determining the antenna port that needs to be closed or opened.
  • the second type for the case where the first message includes at least two antenna port information sets, and each antenna port information set in the at least two antenna port information sets includes third antenna port information for at least one antenna port, the terminal device
  • the CSI information of the antenna port corresponding to each third antenna port information can be measured, or the CSI information of other ports except the antenna port corresponding to the third antenna port information can be measured to determine the first antenna port that needs to be closed or opened.
  • One antenna port information, and the first antenna port information is carried in the CSI information corresponding to at least one antenna port among the Y groups of antenna ports and sent to the network device.
  • the network device may determine the antenna port to be closed or opened according to the first antenna port information of the antenna port included in the determined target CSI information.
  • the antenna port corresponding to the first antenna port information may be determined as the antenna port that needs to be closed or opened.
  • the antenna port information set includes the third antenna port information of at least one antenna port
  • the terminal device measures the antenna corresponding to the third antenna port information
  • the network device may use the first configuration information
  • the antenna port information collection included in the determine the antenna port that needs to be closed or opened.
  • the network device may determine the antenna port corresponding to the third antenna port information included in the antenna port information set as the antenna port that needs to be closed or opened.
  • the third type when the network device configures at least two pieces of first configuration information for the terminal device, since each first configuration information corresponds to a group of antenna ports, the terminal device will determine the need after measuring the antenna ports
  • the antenna port that needs to be closed or opened, and the corresponding relationship between the preset CSI information and the antenna port is determined to determine the antenna port that needs to be closed or opened, and the CSI information corresponding to the antenna port that needs to be closed or opened is carried in group Y
  • the CSI information corresponding to at least one group of antenna ports in the antenna ports is sent to the network device.
  • the terminal device can feed back at least one piece of CSI information to the network device. In this way, the network device will determine the second antenna port information corresponding to the target CSI information according to the correspondence between the CSI information and the antenna port information, and determine whether to close or open the X antenna ports according to the second antenna port information Antenna port.
  • the antenna port information of the antenna port corresponding to the first configuration information 1 includes antenna port 2, antenna port 4, and antenna port 10
  • the antenna port information of the antenna port corresponding to the first configuration information 2 includes antenna port 3 and antenna port 6.
  • antenna port 9 the antenna port information of the antenna port corresponding to the first configuration information 3 includes antenna port 11, antenna port 15, and antenna port 20, and the terminal device determines that the antenna port information of the antenna port that needs to be closed or opened is the antenna port 11.
  • a CSI information corresponding to configuration information 3 and CSI information corresponding to first configuration information 2 so that the network device can determine the target CSI according to the CSI information corresponding to the first configuration information 3 and the CSI information corresponding to the first configuration information 2.
  • Information assuming that the determined target CSI information is the CSI information corresponding to the first configuration information 3, the network device can determine that the antenna ports that need to be closed or opened are antenna port 11, antenna port 15 and antenna port 20.
  • the terminal device will measure the CSI information corresponding to the X antenna ports according to the first configuration information, and measure the CSI information corresponding to all antenna ports according to the second configuration information. And feedback the CSI information corresponding to the first configuration information and the CSI information corresponding to the second configuration information to the network device through the second message, that is, the CSI information corresponding to the X antenna ports and the CSI information corresponding to all antenna ports.
  • the network device can determine whether to close or open some antenna ports based on the two types of CSI information.
  • the network device will determine not to close the antenna port, and continue to use the CSI information corresponding to the second configuration information to complete the allocation of time-frequency resources, MCS selection and data transmission block size selection are used to transmit the transmission block determined during scheduling using the physical downlink share channel (PDSCH).
  • PDSCH physical downlink share channel
  • the network device can determine the antenna port that needs to be closed or opened according to any of the above methods, so that the antenna port can be closed or opened. After the network device closes or opens the antenna port, it will transmit the physical downlink shared channel (PDSCH) based on the new antenna port.
  • PDSCH physical downlink shared channel
  • the terminal device After the terminal device measures the antenna port, it can feed back the measurement result to the network device, so that the network device can determine the antenna port that needs to be closed or opened according to the measurement result, which is beneficial to reduce the risk of closing the antenna port. It can increase the data transmission rate and reduce the data transmission delay, or when the antenna port is turned on, the system capacity and the data transmission rate can be increased as much as possible.
  • the embodiment of the application provides a communication method.
  • the network device sends a first message to the terminal device.
  • the first message is used to instruct the terminal device to measure the channel state information CSI information corresponding to the X antenna ports, and receive the first message from the terminal device.
  • the second message includes the CSI information corresponding to at least one group of antenna ports in the Y group of antenna ports, the number of antenna ports included in each group of antenna ports in the Y group of antenna ports is less than or equal to X, and then according to the Y group of antenna ports
  • the CSI information corresponding to at least one group of antenna ports in the X antenna ports is used to determine the closed or open antenna port.
  • the terminal device Since the terminal device measures the CSI information corresponding to the X antenna ports according to the first message, it will feed back the CSI information corresponding to the Y antenna ports among the X antenna ports to the network device, and the network device will be able to feed back the CSI information according to the terminal device
  • Determine the antenna port that needs to be closed or opened which helps reduce the capacity loss caused by closing the antenna port, increase the data transmission rate, and reduce the data transmission delay, or when the antenna port is opened, the system can be improved as much as possible Capacity, increase the data transmission rate.
  • the antenna port is dynamically closed, fast CSI measurement can be realized, the measurement delay is reduced, and the measurement delay is reduced. On the one hand, it can match the QoS requirements of low-latency services, and on the other hand, it can increase the transmission rate.
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a communication device according to an embodiment of this application.
  • the communication device may be applied to the above-mentioned network equipment.
  • the communication device may include: a sending module 11, a receiving module 12, and a processing module 13, wherein:
  • the sending module 11 is configured to send a first message to a terminal device, where the first message is used to instruct the terminal device to measure channel state information CSI information corresponding to X antenna ports;
  • the receiving module 12 is configured to receive a second message from the terminal device, the second message including channel state information CSI information corresponding to at least one antenna port in the Y group of antenna ports, and each group of antennas in the Y group of antenna ports The number of antenna ports included in the port is less than or equal to X; where X and Y are both positive integers;
  • the processing module 13 is configured to determine a closed or open antenna port from the X antenna ports according to the CSI information corresponding to at least one antenna port among the Y groups of antenna ports.
  • the device may further include a storage module for storing program instructions.
  • the processing module 13 is specifically configured to:
  • a closed or open antenna port is determined from the X antenna ports.
  • processing module 13 is specifically configured to:
  • a closed or open antenna port is determined from the X antenna ports.
  • the target CSI information includes first antenna port information
  • the processing module 13 is specifically used for:
  • processing module 13 is specifically configured to:
  • a closed or open antenna port is determined from the X antenna ports.
  • the first message includes the number of closed or opened antenna ports.
  • the sending module 11 is further configured to send a third message to the terminal device, and the third message includes at least one antenna port information set Each antenna port information set in the at least one antenna port information set includes at least one third antenna port information; the third message is used to instruct the terminal device to measure at least one corresponding third antenna port information Or, the third message is used to instruct the terminal device to measure CSI information of antenna ports other than the antenna port corresponding to the third antenna port information.
  • the first message further includes fourth antenna port information; the fourth antenna port information is included in at least one antenna port information set Part of the antenna port information; the first message is also used to instruct the terminal device to measure the CSI information of the antenna port corresponding to the fourth antenna port information.
  • the antenna port information is bitmap information or row and column sequence number information; wherein, each flag bit in the bitmap information is used to indicate an antenna port;
  • the row and column sequence number information is used to indicate the row information and column information of the antenna port.
  • the communication device of this embodiment can be used to implement the implementation scheme of the network device in the method embodiment shown in FIG.
  • the physical device corresponding to the processing module is a processor
  • the physical device corresponding to the receiving module is a receiver
  • the physical device corresponding to the sending module is a transmitter
  • the physical device corresponding to the storage module is Memory.
  • FIG. 6 is a schematic structural diagram of Embodiment 2 of a communication device provided by an embodiment of this application.
  • the communication device can be applied to the aforementioned terminal equipment.
  • the communication device may include: a receiving module 21, a processing module 22, and a sending module 23, where:
  • the receiving module 21 is configured to receive the first message
  • the processing module 22 is configured to measure channel state information CSI information corresponding to the X antenna ports according to the first message;
  • the sending module 23 is configured to send a second message, the second message including channel state information CSI information corresponding to at least one group of antenna ports in the Y group of antenna ports, and the antennas included in each group of antenna ports in the Y group of antenna ports
  • the number of ports is less than or equal to X, and the channel state information CSI information corresponding to at least one antenna port in the Y groups of antenna ports is used to instruct the network device to determine the closed or open antenna port from the X antenna ports;
  • X and Y are both positive integers.
  • the first message includes the number of antenna ports that need to be closed or opened.
  • the receiving module 21 is further configured to receive a third message, and the third message includes at least one antenna port information set, and the at least one Each antenna port information set in the antenna port information set includes at least one piece of third antenna port information;
  • the processing module 22 is further configured to measure the CSI information of at least one antenna port corresponding to the third antenna port information according to the third message, or to measure the number of antenna ports corresponding to the third antenna port information. CSI information of other antenna ports.
  • the first message further includes fourth antenna port information; the fourth antenna port information is included in at least one antenna port information set Part of antenna port information;
  • the processing module 22 is specifically configured to:
  • the CSI information of the antenna port corresponding to the fourth antenna port information is measured.
  • the sending module 23 is specifically configured to:
  • the first antenna port information is carried in the CSI information corresponding to at least one antenna port among the Y groups of antenna ports for transmission.
  • processing module 22 is specifically configured to:
  • the quality information includes at least one of rank indicator RI, channel quality indicator CQI, signal-to-noise ratio SNR, and signal-to-dry ratio SINR;
  • the first antenna port information is bitmap information or row and column sequence number information; wherein, each flag bit in the bitmap information is used to indicate One antenna port; the row and column sequence number information is used to indicate the row information and column information of the antenna port.
  • the first message further includes second configuration information; the processing module 22 is further configured to measure all CSI corresponding to the antenna port.
  • the processing module 22 is further configured to deactivate the second configuration information.
  • the communication device of this embodiment can be used to implement the implementation scheme of the terminal device in the method embodiment shown in FIG.
  • the physical device corresponding to the processing module is a processor
  • the physical device corresponding to the receiving module is a receiver
  • the physical device corresponding to the sending module is a transmitter
  • the division of the various modules of the above device is only a division of logical functions, and may be fully or partially integrated into a physical entity in actual implementation, or may be physically separated.
  • these modules can all be implemented in the form of software called by processing elements; they can also be implemented in the form of hardware; some modules can be implemented in the form of calling software by processing elements, and some of the modules can be implemented in the form of hardware.
  • the processing module may be a separately established processing element, or it may be integrated in a chip of the above-mentioned device for implementation.
  • each step of the above method or each of the above modules can be completed by hardware integrated logic circuits in the processor element or instructions in the form of software.
  • the above modules may be one or more integrated circuits configured to implement the above methods, such as one or more application specific integrated circuit (ASIC), or one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate arrays (FPGA), etc.
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • FPGA field programmable gate arrays
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes.
  • CPU central processing unit
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 7 is a schematic structural diagram of Embodiment 3 of a communication device provided by an embodiment of this application.
  • the communication device can be applied to network equipment.
  • the communication device may include: a transceiver 111, a controller/processor 112, and a memory 113.
  • the transceiver 111 is configured to use an antenna to send a first message and receive a second message.
  • the controller/processor 112 is used to control and manage the actions of the network device, and perform various functions to support the communication service of the network device. For example, the controller/processor 112 is used to support the network device to determine the closed or open antenna port from the X antenna ports according to the CSI information corresponding to at least one antenna port in the Y groups of antenna ports. In addition, the controller/processor 112 is used to execute various steps of the network device in the embodiment shown in FIG. 4, and/or other processes used in the technology described in this application.
  • the memory 113 is used to store program codes and data for the network device.
  • the memory 113 may be used to store the antenna ports determined by the controller/processor 112 to be closed or opened, and to store the execution instructions and execution results of the controller/processor 112.
  • the communication device may also include a computer program stored on the memory 113 and running on the controller/processor 112, and the controller/processor 112 can implement the program as shown in FIG. 4 when executing the program.
  • the steps of the network device in the embodiment are shown.
  • the communication device of this embodiment can be used to implement the implementation scheme of the network device in the method embodiment shown in FIG.
  • FIG. 8 is a schematic structural diagram of Embodiment 4 of a communication device provided by an embodiment of this application.
  • the communication device can be applied to terminal equipment.
  • the communication device may include: a controller/processor 101, a transceiver 102, and a memory 103.
  • the controller/processor 101 can control and manage the actions of the terminal device, and is used to execute each step performed by the terminal device in the embodiment shown in FIG. 4, and/or use Other processes in the technology described in this application. For example, it is used to measure the CSI information corresponding to X antenna ports according to the first message. As an example, the controller/processor 101 is used to support the terminal device to execute each step corresponding to the terminal device in FIG. 4.
  • the transceiver 102 may be used to transmit the CSI information corresponding to at least one antenna port among the Y groups of antenna ports through an antenna, and the CSI information corresponding to at least one antenna port among the Y groups of antenna ports is used to instruct the network device to receive X antenna
  • the antenna port to be closed or opened is determined among the ports, and/or operations such as receiving the first message of the network device.
  • the memory 103 is used to store program codes and data for the terminal device.
  • the memory 103 may be used to store configuration information or pre-configured information received by the transceiver 102 through configuration instructions, and to store execution instructions and execution results of the controller/processor 101.
  • the communication device may also include a computer program stored on the memory 103 and running on the controller/processor 101, and the controller/processor 101 can implement the program as shown in FIG. 4 when executing the program.
  • the steps of the terminal device in the embodiment are shown.
  • the apparatus in this embodiment may include: a modem processor 104.
  • the encoder 105 may be used to receive an uplink signal to be transmitted on the uplink, and process the uplink signal (for example, formatting, encoding, and interleaving).
  • the modulator 106 is used for further processing (for example, symbol mapping and modulation) of the encoded uplink signal.
  • the demodulator 107 is used to process (e.g., demodulate) the downlink signal received from the network device.
  • the decoder 108 is used for further processing (e.g., deinterleaving and decoding) the downlink signal.
  • the encoder 105, the modulator 106, the demodulator 107, and the decoder 108 may be implemented by a synthesized modem processor 104. These units are based on the radio access technology adopted by the radio access network (for example, the access technologies of LTE and other evolved systems).
  • the communication device in this embodiment can be used to implement the implementation scheme of the terminal device in the method embodiment shown in FIG. 4, and the specific implementation manner and technical effect are similar, and details are not described herein again.
  • the controller/processor used to execute the functions of the aforementioned terminal equipment and network equipment in the embodiments of the present application may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), or an application specific integrated circuit ( ASIC), field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof, which can implement or execute various exemplary logic blocks described in conjunction with the disclosure of this application , Modules and circuits.
  • the controller/processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the embodiments of the present application also provide a computer-readable storage medium, the storage medium stores computer software instructions, and when the computer software instructions run in a communication device or a chip built in the communication device, the communication device executes Such as the method of the network device in the embodiment shown in FIG. 4 above.
  • the present application also provides a program product, the program product includes a computer program (that is, an execution instruction), and the computer program is stored in a readable storage medium.
  • a processor of the network device can read the computer program from a readable storage medium, and at least one processor executes the computer program to enable the network device to implement the communication methods provided in the foregoing various embodiments.
  • an embodiment of the present application further provides a chip for executing instructions, where the chip is used to execute the method of the network device in the embodiment shown in FIG. 4.
  • the embodiments of the present application also provide a computer-readable storage medium, the storage medium stores computer software instructions, and when the computer software instructions run in a communication device or a chip built in the communication device, the communication device executes Such as the terminal device method in the embodiment shown in FIG. 4 above.
  • the present application also provides a program product.
  • the program product includes a computer program (that is, an execution instruction), and the computer program is stored in a readable storage medium.
  • At least one processor of the terminal device can read the computer program from a readable storage medium, and at least one processor executes the computer program to make the terminal device implement the communication methods provided in the foregoing various embodiments.
  • an embodiment of the present application further provides a chip for executing instructions, and the chip is used to execute the method of the terminal device in the embodiment shown in FIG. 4.
  • All or part of the steps in the foregoing method embodiments can be implemented by a program instructing relevant hardware.
  • the aforementioned program can be stored in a readable memory.
  • the program executes the steps of the foregoing method embodiments; and the foregoing memory (storage medium) includes: read-only memory (English: read-only memory, ROM), RAM, flash memory, hard disk, and solid state hard disk , Magnetic tape, floppy disk, optical disc, and any combination thereof.

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

Abstract

Des modes de réalisation de la présente invention concernent un procédé et un appareil de communication. Le procédé consiste à : envoyer un premier message à un dispositif terminal, le premier message étant utilisé pour ordonner au dispositif terminal de mesurer des informations d'état de canal (CSI) correspondant à X ports d'antenne ; recevoir un deuxième message en provenance du dispositif terminal, le deuxième message comprenant des informations CSI correspondant à au moins l'un des Y groupes de ports d'antenne, et le nombre de ports d'antenne inclus dans chacun des Y groupes de ports d'antenne étant inférieur ou égal à X, X et Y étant des nombres entiers positifs ; et déterminer des ports d'antenne fermés ou ouverts parmi les X ports d'antenne en fonction des informations CSI correspondant à au moins l'un des Y groupes de ports d'antenne. La présente invention permet avantageusement de réduire la perte de capacité due à la fermeture de ports d'antenne, d'améliorer le débit de transmission de données, et de réduire le retard de transmission des données.
PCT/CN2019/079048 2019-03-21 2019-03-21 Procédé et appareil de communication WO2020186511A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1946000A (zh) * 2005-10-05 2007-04-11 中兴通讯股份有限公司 在多用户多输入多输出系统中实现下行链路自适应的方法及系统
CN103347298A (zh) * 2012-12-31 2013-10-09 上海华为技术有限公司 参考信号配置方法和参考信号发送方法及相关设备
CN104247289A (zh) * 2012-02-23 2014-12-24 韩国电子通信研究院 大规模天线系统中的多输入和多输出通信方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1946000A (zh) * 2005-10-05 2007-04-11 中兴通讯股份有限公司 在多用户多输入多输出系统中实现下行链路自适应的方法及系统
CN104247289A (zh) * 2012-02-23 2014-12-24 韩国电子通信研究院 大规模天线系统中的多输入和多输出通信方法
CN103347298A (zh) * 2012-12-31 2013-10-09 上海华为技术有限公司 参考信号配置方法和参考信号发送方法及相关设备

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