WO2024093646A1

WO2024093646A1 - Resource configuration method and apparatus

Info

Publication number: WO2024093646A1
Application number: PCT/CN2023/124448
Authority: WO
Inventors: 袁一凌; 高君慧; 叶宸成; 金黄平; 韩玮
Original assignee: 华为技术有限公司; 鹏城实验室
Priority date: 2022-10-31
Filing date: 2023-10-13
Publication date: 2024-05-10
Also published as: CN117956618A

Abstract

Embodiments of the present application provide a resource configuration method. The method comprises: a network device transmits first information to a terminal device, the first information being used for indicating a polling cycle, the polling cycle being the number N of transmissions of channel state information reference signals (CSI-RS) required for measurement of channel state information (CSI), and N being a positive integer; the network device transmits N CSI-RSs according to the polling cycle; and the network device receives a measurement report from the terminal device, the measurement report being used for indicating a measurement result of the measurement of the CSI. Therefore, all antenna ports are measured once by means of polling of a plurality of CSI-RSs, so that the configuration of a plurality of CSI-RS resources is avoided, and the configuration complexity and the signaling overhead are reduced.

Description

A method and device for resource allocation

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on October 31, 2022, with application number 202211343586.2 and application name “A method and device for resource allocation”, the entire contents of which are incorporated by reference in this application.

Technical Field

The embodiments of the present application relate to the field of wireless communication technology, and more specifically, to a method and device for resource configuration.

Background technique

At present, the fifth generation (5th Generation, 5G) communication system has higher requirements for system capacity, spectrum efficiency and other aspects. In the 5G communication system, massive multiple-input multiple-output (Massive MIMO) technology plays a vital role in the spectrum efficiency of the system. When using MIMO technology, when the network device sends data to the terminal device, modulation coding and signal precoding are required. How the network device performs modulation coding and signal precoding depends on the channel state information (CSI) fed back by the terminal device to the network device. For example, for frequency division duplex (FDD) system or time division duplex (TDD) system, the network device needs to rely on the CSI fed back by the terminal device to calculate the precoding.

Under the current protocol, considering resource constraints, the number of ports that can measure reference signals (RS) (for example, channel state information reference signal (CSI-RS)) is limited. When the antenna scale is large, multiple sets of reference signals need to be configured, and the configuration is more complicated. As the antenna scale increases, how to reduce the complexity of reference signal resource configuration and signaling overhead is an urgent problem to be solved.

Summary of the invention

The embodiment of the present application provides a method for resource configuration, which avoids the configuration of multiple CSI-RS resources and reduces the configuration complexity and signaling overhead by measuring all antenna ports once using multiple CSI-RS in a patrol manner.

In a first aspect, a method for resource configuration is provided. The method may be executed by a network device, or may be executed by a component of the network device (such as a chip or circuit), without limitation. For ease of description, the method is described below by taking the method executed by a network device as an example.

The method may include: a network device sends first information to a terminal device, the first information is used to indicate a patrol period, the patrol period is the number N of times a channel state information reference signal CSI-RS needs to be sent for channel state information CSI measurement, N is a positive integer; the network device sends N CSI-RS according to the patrol period; the network device receives a measurement report from the terminal device, the measurement report is used to indicate a measurement result of the CSI measurement.

Based on the above scheme, the network device configures the first information for indicating the patrol period, and sends multiple CSI-RS to the terminal device in a patrol manner, so that the multiple CSI-RS are measured once for all antenna ports in a patrol manner, that is, the multiple CSI-RS in the patrol are regarded as one CSI-RS resource, avoiding the configuration of multiple CSI-RS resources and reducing the configuration complexity and signaling overhead.

In a possible implementation manner, the first information includes the patrol period, and the first information is carried in CSI-RS resource configuration information.

Based on the above solution, the network device configures the patrol period in the CSI-RS resource configuration information. Since multiple CSI-RSs being patrolled are regarded as one CSI-RS resource, this avoids the configuration of multiple CSI-RS resources, reduces the configuration complexity and signaling overhead, and can flexibly configure the patrol period.

In a possible implementation manner, the first information includes a total number of ports, which is the number of ports required to be measured for the CSI measurement. The first information is carried in CSI reporting configuration information, and the number of ports corresponding to N CSI-RSs is the same.

Based on the above scheme, for N CSI-RSs with the same number of corresponding ports, the network device configures the number of ports required for CSI measurement in the CSI-RS reporting configuration information. In this way, the patrol period can be determined according to the number of ports required for CSI measurement and the number of ports corresponding to CSI-RS, further reducing the signaling overhead.

In a possible implementation manner, the patrol period is based on the number of ports to be measured by the CSI measurement and the number of ports corresponding to the CSI-RS. The number is determined.

In a possible implementation manner, the network device sends the N CSI-RS according to the patrol period, including: the network device periodically sends the N CSI-RS according to the patrol period.

Based on the above solution, for periodic CSI-RS, the network device can send N CSI-RS in a periodic manner according to the patrol period, thereby increasing the diversity of the solution for sending N CSI-RS.

In a possible implementation manner, the network device sends the N CSI-RS according to the patrol period, including: the network device sends the N CSI-RS aperiodically according to the patrol period.

Based on the above solution, for non-periodic CSI-RS, the network device can send N CSI-RS in a non-periodic manner according to the patrol period, thereby increasing the diversity of the solution for sending N CSI-RS.

In a possible implementation manner, the method further includes: the network device determines a time interval, the time interval being the duration between sending any two adjacent CSI-RS among the N CSI-RS, and the first information also includes the time interval; wherein the network device sends the N CSI-RS non-periodically according to the patrol period, including: the network device sends the N CSI-RS non-periodically according to the patrol period and the time interval.

Based on the above scheme, for the non-periodic CSI-RS, since there is no configuration period, it is also necessary to determine the time interval between the non-periodic transmission of N CSI-RS so that the terminal device can determine the transmission time of N CSI-RS.

In a possible implementation manner, the method further includes: the network device determining a correspondence between the N CSI-RSs and ports that need to be measured for the CSI measurement.

Based on the above scheme, the network device can determine the correspondence between N CSI-RS and the ports that need to be measured for the CSI measurement according to the protocol agreement, so that the network device and the terminal device can jointly determine the correspondence according to the protocol agreement without the need for information exchange between the network device and the terminal device, thereby reducing signaling overhead.

In a possible implementation manner, the method further includes: the network device sending first indication information to the terminal device, where the first indication information is used to indicate a correspondence between the N CSI-RSs and ports that need to be measured for the CSI measurement.

Based on the above solution, the network device can indicate to the terminal device the correspondence between the N CSI-RSs and the ports that need to be measured for the CSI measurement, so that the terminal device learns the correspondence.

In a possible implementation manner, the corresponding relationship is determined according to the transmission time of the N CSI-RS or the scrambling code identities of the N CSI-RS.

Based on the above scheme, the network device can determine the correspondence between the N CSI-RS and the ports to be measured for the CSI measurement according to the transmission time of the N CSI-RS or the scrambling code identifiers of the N CSI-RS, thereby increasing the diversity of the scheme for determining the correspondence.

In a second aspect, a method for resource configuration is provided. The method may be executed by a terminal device, or may be executed by a component of a UE (eg, a chip or a circuit), without limitation, and for ease of description, the method is described below by taking the method executed by a terminal device as an example.

The method may include: a terminal device receives first information from a network device, the first information is used to indicate a patrol period, the patrol period is the number N of times a channel state information reference signal CSI-RS needs to be sent for channel state information CSI measurement, N is a positive integer; the terminal device receives N CSI-RS according to the patrol period; the terminal device sends a measurement report to the network device, the measurement report is used to indicate a measurement result of the CSI measurement.

Based on the above scheme, the terminal device receives the first information configured by the network device to indicate the patrol period, and according to the first information, measures the received multiple CSI-RSs once for all antenna ports in a patrol manner, that is, regards the patrolled multiple CSI-RSs as one CSI-RS resource, thereby avoiding the configuration of multiple CSI-RS resources and reducing the configuration complexity and signaling overhead.

Based on the above scheme, the terminal device directly obtains the patrol period according to the first information configured in the CSI-RS resource configuration information. Since the multiple CSI-RSs being patrolled are regarded as one CSI-RS resource, this avoids the configuration of multiple CSI-RS resources, reduces the configuration complexity and signaling overhead, and can flexibly configure the first information (patrol period).

In a possible implementation manner, the first information includes a total number of ports, which is the number of ports required to be measured for the CSI measurement. The first information is carried in the CSI reporting configuration information, and the number of ports corresponding to the N CSI-RSs is the same.

Based on the above solution, for N CSI-RSs with the same number of corresponding ports, the first information received by the terminal device is configured in the CSI-RS reporting configuration information, which can further reduce the signaling overhead.

In a possible implementation manner, the method further includes: the terminal device determines the patrol period according to the total number of ports and the number of ports corresponding to the CSI-RS.

Based on the above scheme, for N CSI-RS with the same number of corresponding ports, the terminal device reports the configuration information in the CSI-RS according to the configuration. The number of ports required for measuring the CSI measurement in the information and the number of ports corresponding to the CSI-RS determine the patrol period, which increases the flexibility of the scheme for configuring the patrol period and further reduces the signaling overhead.

In a possible implementation manner, the terminal device receives N CSI-RS according to the patrol period, including: the terminal device periodically receives N CSI-RS according to the patrol period.

Based on the above scheme, for periodic CSI-RS, the terminal device can receive N CSI-RS in a periodic manner according to the patrol period, which increases the diversity of the scheme for receiving N CSI-RS.

In a possible implementation, the terminal device receives N CSI-RS according to the patrol period, including: the terminal device non-periodically receives N CSI-RS according to the patrol period.

Based on the above scheme, for non-periodic CSI-RS, the terminal device can receive N CSI-RS in a non-periodic manner according to the patrol period, thereby increasing the diversity of schemes for receiving N CSI-RS.

In a possible implementation, the first information also includes a time interval, and the terminal device receives N CSI-RS non-periodically according to the patrol period, including: the terminal device receives N CSI-RS non-periodically according to the patrol period and the time interval, and the time interval is the duration between sending any two adjacent CSI-RS among the N CSI-RS.

Based on the above scheme, for non-periodic CSI-RS, the terminal device receives N CSI-RS in a non-periodic manner according to the time interval and patrol period in the first information, thereby increasing the diversity of schemes for receiving N CSI-RS.

In a possible implementation manner, the method further includes: the terminal device determining a correspondence between the N CSI-RSs and ports that need to be measured for the CSI measurement.

Based on the above scheme, the terminal device can determine the correspondence between N CSI-RS and the ports that need to be measured for the CSI measurement according to the protocol agreement, so that the network device and the terminal device can jointly determine the correspondence according to the protocol agreement without the need for information exchange between the network device and the terminal device, thereby reducing signaling overhead.

In a possible implementation manner, the method further includes: the terminal device receiving first indication information from the network device, where the first indication information is used to indicate a correspondence between the N CSI-RSs and ports that need to be measured for the CSI measurement.

Based on the above solution, the terminal device can receive indication information from the network device, so as to obtain the corresponding relationship between the N CSI-RSs and the ports that need to be measured for the CSI measurement.

In a third aspect, a device for resource configuration is provided, comprising a unit for executing the method shown in the first aspect above. The device for resource configuration may be a network device, or may be executed by a chip or circuit arranged in the network device, and the present application does not limit this.

The resource configuration device includes:

A transceiver unit is used to send first information to a terminal device, where the first information is used to indicate a patrol period, where the patrol period is the number N of times a channel state information reference signal CSI-RS needs to be sent for channel state information CSI measurement, where N is a positive integer; the network device sends N CSI-RS according to the patrol period; the network device receives a measurement report from the terminal device, where the measurement report is used to indicate a measurement result of the CSI measurement.

In a possible implementation manner, the polling period is determined according to the number of ports required to be measured for the CSI measurement and the number of ports corresponding to the CSI-RS.

In a possible implementation manner, the transceiver unit is further configured to periodically send N CSI-RSs according to the patrol period.

In a possible implementation manner, the transceiver unit is further configured to aperiodically send N CSI-RSs according to the patrol period.

In one possible implementation, a processing unit is used to determine a time interval, where the time interval is the duration between sending any two adjacent CSI-RSs among the N CSI-RSs, and the first information also includes the time interval; the transceiver unit is also used to non-periodically send the N CSI-RSs according to the patrol period and the time interval.

In a possible implementation manner, the processing unit is further configured to determine a correspondence between the N CSI-RSs and ports that need to be measured for the CSI measurement.

In a possible implementation manner, the transceiver unit is further configured to send first indication information to the terminal device, where the first indication information is used to indicate The corresponding relationship between N CSI-RSs and the ports that need to be measured for the CSI measurement is shown.

The explanation of the relevant contents and beneficial effects of the resource configuration device provided in the third aspect can refer to the method shown in the first aspect and will not be repeated here.

In a fourth aspect, a device for resource configuration is provided, comprising a unit for executing the method shown in the second aspect above. The device for resource configuration may be a terminal device, or may be executed by a chip or circuit arranged in the terminal device, and the present application does not limit this.

The resource configuration device includes:

A transceiver unit is used to receive first information from a network device, where the first information is used to indicate a patrol period, where the patrol period is the number N of times a channel state information reference signal CSI-RS needs to be sent for channel state information CSI measurement, where N is a positive integer; the terminal device receives N CSI-RS according to the patrol period; the terminal device sends a measurement report to the network device, where the measurement report is used to indicate a measurement result of the CSI measurement.

In a possible implementation manner, the processing unit is configured to determine the patrol period according to the total number of ports and the number of ports corresponding to the CSI-RS.

In a possible implementation manner, the transceiver unit is further configured to periodically receive N CSI-RSs according to the patrol period.

In a possible implementation manner, the transceiver unit is further configured to aperiodically receive N CSI-RSs according to the patrol period.

In a possible implementation manner, the first information also includes a time interval; the transceiver unit is further used to non-periodically receive N CSI-RS according to the patrol period and the time interval, and the time interval is the duration between sending any two adjacent CSI-RS among the N CSI-RS.

In a possible implementation manner, the transceiver unit is further used to receive first indication information from the network device, where the first indication information is used to indicate a correspondence between the N CSI-RSs and the ports that need to be measured for the CSI measurement.

The explanation of the relevant contents and beneficial effects of the resource configuration device provided in the fourth aspect can refer to the method shown in the second aspect and will not be repeated here.

In a fifth aspect, a communication device is provided, comprising: a memory for storing programs; and at least one processor for executing computer programs or instructions stored in the memory to execute a method of a possible implementation of the first aspect or the second aspect.

In one implementation, the apparatus is a network device.

In another implementation, the apparatus is a chip, a chip system, or a circuit used in a network device.

In a sixth aspect, the present application provides a processor for executing the methods provided in the above aspects.

For the operations such as sending and acquiring/receiving involved in the processor, unless otherwise specified, or unless they conflict with their actual function or internal logic in the relevant description, they can be understood as operations such as processor output, reception, input, etc., or as sending and receiving operations performed by the radio frequency circuit and antenna, and this application does not limit this.

In a seventh aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, wherein the program code includes a method for executing a possible implementation of the first aspect or the second aspect described above.

In an eighth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute a method which may be implemented in the first or second aspect.

In a ninth aspect, a chip is provided, the chip comprising a processor and a communication interface, the processor reads instructions stored in a memory through the communication interface, and executes a method of a possible implementation of the first aspect or the second aspect.

Optionally, as an implementation method, the chip also includes a memory, in which a computer program or instructions are stored, and the processor is used to execute the computer program or instructions stored in the memory. When the computer program or instructions are executed, the processor is used to execute the method of the possible implementation method of the first aspect or the second aspect mentioned above.

In a tenth aspect, a communication system is provided, comprising one or more of the above-mentioned network devices and terminal devices.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 shows a schematic diagram of a network architecture according to an embodiment of the present application.

FIG. 2 shows a schematic flow chart of a method 200 for resource configuration provided in an embodiment of the present application.

FIG3 shows a schematic diagram of sending N CSI-RS in a periodic manner according to an embodiment of the present application.

FIG. 4 shows a schematic flowchart of a method 400 for resource configuration provided in an embodiment of the present application.

FIG5 shows a schematic flowchart of a method 500 for resource configuration provided in an embodiment of the present application.

FIG6 shows a schematic block diagram of a communication device 600 provided in an embodiment of the present application.

FIG. 7 shows a schematic block diagram of another communication device 700 provided in an embodiment of the present application.

FIG8 shows a schematic diagram of a chip system 800 provided in an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

The technical solution provided in the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) mobile communication system or new radio access technology (NR) or future communication system, such as sixth generation (6G) communication system, etc. Among them, the 5G mobile communication system may include non-standalone (NSA) and/or standalone (SA).

The technical solution provided in the present application can also be applied to machine type communication (MTC), Long Term Evolution-machine (LTE-M), device-to-device (D2D) network, machine-to-machine (M2M) network, Internet of Things (IoT) network or other networks. Among them, IoT network can include vehicle networking, for example. Among them, the communication mode in the vehicle networking system is collectively referred to as vehicle to other devices (vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (vehicle to vehicle, V2V) communication, vehicle to infrastructure (vehicle to infrastructure, V2I) communication, vehicle to pedestrian (vehicle to pedestrian, V2P) communication or vehicle to network (vehicle to network, V2N) communication, etc.

The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, etc. This application does not limit this.

In the embodiment of the present application, the network device can be any device with wireless transceiver function. The device includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), baseband unit (BBU), wireless fidelity (wireless fidelity) lity, WiFi) system, etc., and can also be a gNB in a system such as NR, or a transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU).

In some deployments, the gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB, for example, the CU is responsible for processing non-real-time protocols and services, and implementing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. The AAU implements some physical layer processing functions, radio frequency processing, and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, therefore, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or, sent by the DU+AAU. It can be understood that the network device can be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU may be classified as a network device in an access network (radio access network, RAN), or the CU may be classified as a network device in a core network (core network, CN), which is not limited in the present application.

The network equipment provides services for the cell, and the terminal equipment communicates with the cell through the transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment. The cell can belong to a macro base station (for example, macro eNB or macro gNB, etc.), or to a base station corresponding to a small cell. The small cell here may include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

In an embodiment of the present application, the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.

A terminal device can be a device that provides voice/data connectivity to users, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminals can be: mobile phones, tablet computers, computers with wireless transceiver functions (such as laptops, PDAs, etc.), mobile Internet devices (mobile internet devices, MIDs), virtual reality (virtual reality, VR) devices, augmented reality (augmented reality, AR) devices, wireless terminals in industrial control (industrial control), wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grids, wireless terminals in transportation safety (transportation safety), etc. The present invention relates to wireless terminals in the smart city, wireless terminals in the smart home, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDA), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolved public land mobile networks (PLMN), etc.

Among them, wearable devices can also be called wearable smart devices, which are a general term for the intelligent design and development of wearable devices for daily wear using wearable technology, such as glasses, gloves, watches, clothing and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also realize powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and independent of smartphones to achieve complete or partial functions, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

In addition, the terminal device can also be a terminal device in the Internet of Things (IoT) system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection. IoT technology can achieve massive connections, deep coverage, and terminal power saving through narrow band (NB) technology, for example.

In addition, terminal devices can also include sensors such as smart printers, train detectors, and gas stations. Their main functions include collecting data (part of the terminal equipment), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

To facilitate understanding of the embodiments of the present application, a communication system applicable to the channel measurement method provided in the embodiments of the present application is first described in detail in conjunction with FIG. 1 .

FIG1 shows a schematic diagram of a communication system 100 applicable to the method provided in an embodiment of the present application.

As shown in FIG. 1 , the communication system 100 may include at least one network device, such as the network device 101 in the 5G system shown in FIG. 1 ; the communication system 100 may also include at least one terminal device, such as the terminal devices 102 to 107 shown in FIG. 1 . Among them, the terminal devices 102 to 107 may be mobile or fixed. The network device 101 and one or more of the terminal devices 102 to 107 may communicate via a wireless link. Each network device may provide communication coverage for a specific geographical area and may communicate with terminal devices located in the coverage area. For example, the network device may send configuration information to the terminal device, and the terminal device may send uplink data to the network device based on the configuration information; for another example, the network device may send downlink data to the terminal device. Therefore, the network device 101 and the terminal devices 102 to 107 in FIG. 1 constitute a communication system.

Optionally, the terminal devices may communicate directly with each other. For example, direct communication between the terminal devices may be achieved using D2D technology. As shown in the figure, the terminal devices 105 and 106, and the terminal devices 105 and 107 may communicate directly using D2D technology. The terminal devices 106 and 107 may communicate with the terminal device 105 individually or simultaneously.

Terminal devices 105 to 107 may also communicate with network device 101 respectively. For example, they may communicate directly with network device 101, such as terminal devices 105 and 106 in the figure may communicate directly with network device 101; or they may communicate indirectly with network device 101, such as terminal device 107 in the figure communicates with network device 101 via terminal device 106.

It should be understood that FIG. 1 exemplarily shows a network device and multiple terminal devices, as well as the communication links between the communication devices. Optionally, the communication system 100 may include multiple network devices, and each network device may include other number of terminal devices within its coverage area, such as more or fewer terminal devices, which is not limited in the present application.

Each of the above-mentioned communication devices, such as the network device 101 and the terminal devices 102 to 107 in FIG. 1 , may be configured with multiple antennas. The multiple antennas may include at least one transmitting antenna for sending signals and at least one receiving antenna for receiving signals. In addition, each communication device also additionally includes a transmitter chain and a receiver chain, and those skilled in the art can understand that they may include multiple components related to signal transmission and reception (such as processors, modulators, multiplexers, demodulators, demultiplexers or antennas, etc.). Therefore, the network device and the terminal device can communicate through multi-antenna technology.

Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, but the embodiments of the present application are not limited thereto.

In order to facilitate understanding of the embodiments of the present application, the terms involved in the embodiments of the present application are briefly explained below.

1. Channel State Information Report (CSI report):

Channel state information report may also be referred to as CSI. In a wireless communication system, information used to describe the channel properties of a communication link reported by a receiving end (such as a terminal device) to a transmitting end (such as a network device). CSI may include, for example, but is not limited to, precoding matrix indicator (PMI), rank indication (RI), channel quality indicator (CQI), channel state information reference signal (CSI-RS resource indicator, CRI) and layer indicator (LI). It should be understood that the specific contents of the CSI listed above are only exemplary and should not constitute any limitation to this application. CSI may include one or more of the items listed above, and may also include other information used to characterize CSI in addition to the above items, and this application does not limit this.

Take the example of a terminal device reporting CSI to a network device. The terminal device can report one or more CSIs within a time unit (such as a time slot), and each CSI can correspond to a configuration condition for CSI reporting. The configuration condition for the CSI report can be determined, for example, by high-level signaling (such as an information element (IE) CSI reporting configuration (CSI-reporting config) in a radio resource control (resource control, RRC) message). The CSI reporting configuration can be used to indicate the time domain behavior, bandwidth, and format corresponding to the reporting quantity of the CSI report. Among them, the time domain behavior includes, for example, periodic, semi-persistent, and aperiodic. The terminal device can generate a CSI based on a CSI reporting configuration.

2. Channel reciprocity:

In the time division duplexing (TDD) mode, the uplink and downlink channels transmit signals on the same frequency domain resources but different time domain resources. Within a relatively short period of time (e.g., the coherence time of channel propagation), it can be considered that the channel fading experienced by the signals on the uplink and downlink channels is the same. This is the reciprocity of the uplink and downlink channels. Based on the reciprocity of the uplink and downlink channels, the network equipment can measure the uplink channel based on the uplink reference signal, such as the sounding reference signal (SRS), and can estimate the downlink channel based on the uplink channel, so as to determine the precoding matrix for downlink transmission.

The uplink and downlink channels in the frequency division duplexing (FDD) mode have partial reciprocity, for example, the reciprocity of angle and the reciprocity of delay. In other words, the delay and angle have reciprocity in the uplink and downlink channels in the FDD mode. Therefore, the angle and delay can also be called reciprocity parameters.

When a signal is transmitted through a wireless channel, it can reach the receiving antenna from the transmitting antenna through multiple paths. Multipath delay causes frequency selective fading, which is the change of the frequency domain channel. Delay is the transmission time of a wireless signal on different transmission paths. It is determined by distance and speed and has nothing to do with the frequency domain of the wireless signal. When a signal is transmitted on different transmission paths, there are different transmission delays due to different distances. Therefore, the delay in the uplink and downlink channels in FDD mode can be considered to be the same, or reciprocal.

3. Precoding technology: When the channel state is known, the network equipment can use the precoding matrix that matches the channel resources to process the signal to be transmitted, so that the precoded signal to be transmitted is adapted to the channel, so that the receiving device can better receive the transmitted signal. Therefore, by precoding the signal to be transmitted, the quality of the received signal (such as signal to interference plus noise ratio (SINR)) is improved. Therefore, the use of precoding technology can realize the transmission of the transmitting device and multiple receiving devices on the same time-frequency resources, that is, multiple user multiple input multiple output (MU-MIMO) is realized.

It should be noted that the relevant description of the precoding technology is only for ease of understanding and is not intended to limit the scope of protection of the embodiments of the present application. In the specific implementation process, the sending device can also perform precoding in other ways. For example, when channel information (such as but not limited to the channel matrix) cannot be obtained, a pre-set precoding matrix or a weighted processing method is used for precoding. For the sake of brevity, the specific content is not repeated herein.

4. Reference signal (RS):

RS may also be referred to as a pilot, a reference sequence, etc. In an embodiment of the present application, the reference signal may be a reference signal for channel measurement. For example, the reference signal may be a channel state information reference signal (CSI-RS) for downlink channel measurement, or a sounding reference signal (SRS) for uplink channel measurement. It should be understood that the reference signals listed above are only examples and should not constitute any limitation to the present application. The present application does not exclude the possibility of defining other reference signals in future protocols to achieve the same or similar functions.

The precoded reference signal may be a reference signal obtained by precoding the reference signal. Precoding may specifically include beamforming and/or phase rotation. Beamforming may be implemented, for example, by precoding the downlink reference signal based on one or more angle vectors, and phase rotation may be implemented, for example, by precoding the downlink reference signal by one or more delay vectors.

In the embodiment of the present application, the reference signal may be, for example, a CSI-RS.

For CSI-RS, according to its different transmission behaviors in the time domain, it can be divided into the following three types of CSI-RS:

(1) Periodic CSI-RS:

For periodic CSI-RS, the network device will configure a transmission period for it. For example, the CSI-RS will be repeated every at least 4 time slots and at most 640 time slots.

(2) Semi-static CSI-RS:

For semi-static CSI-RS, the network device will also configure a transmission period, but whether it is actually sent depends on the explicit activation of the MAC control information element. Once activated, it will continue to send periodically until it receives an explicit deactivation command to stop sending.

(3) Aperiodic CSI-RS:

For non-periodic CSI-RS, the network device does not configure a transmission period for it, but explicitly notifies each CSI-RS transmission through signaling.

5. Port:

A port can be understood as a virtual antenna recognized by a receiving device. In an embodiment of the present application, a port may refer to a reference signal sending port or a transmitting antenna port. For example, the reference signal of each port may be a reference signal that has not been precoded, or a precoded reference signal obtained by precoding the reference signal based on at least one delay vector; a port may also refer to a reference signal port after beamforming. For example, the reference signal corresponding to each port may be a precoded reference signal obtained by precoding the reference signal based on an angle vector, or a precoded reference signal obtained by precoding the reference signal based on an angle vector and a delay vector. The signal of each port may be transmitted through one or more resource blocks (RBs).

The transmit antenna port may refer to an actual independent transmit unit (transceiver unit, TxRU). It is understandable that if spatial precoding is performed on the reference signal, the number of ports may refer to the number of reference signal ports, which may be less than the number of transmit antenna ports.

In the embodiments shown below, when referring to the transmit antenna port, it may refer to the number of ports that are not spatially precoded. That is, it is the actual number of independent transmission units. When referring to the port, in different embodiments, it may refer to the transmit antenna port.

Line port may also refer to a reference signal port. The specific meaning of the port may be determined according to the specific embodiment.

6. Reference signal resources:

Reference signal resources can be used to configure the transmission properties of reference signals, such as time-frequency resource location, port mapping relationship, power factor, and scrambling code, etc. For details, please refer to the existing technology. The transmitting end device can send the reference signal based on the reference signal resource, and the receiving end device can receive the reference signal based on the reference signal resource. A reference signal resource can include one or more RBs.

In the embodiment of the present application, the reference signal resource may be, for example, a CSI-RS resource.

It can be understood that the term "and/or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.

The above briefly describes the terms involved in this application, and will not be repeated in the following embodiments. The communication method provided by the embodiment of this application will be described in detail below in conjunction with the accompanying drawings. The embodiment provided by this application can be applied to the network architecture shown in Figure 1 above, without limitation.

In addition, the ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority or importance of multiple objects. For example, the first threshold and the second threshold can be the same threshold or different thresholds, and such names do not indicate differences in the values, corresponding parameters, priorities or importance of the two thresholds.

In the embodiments of the present application, the number of nouns, unless otherwise specified, means "singular noun or plural noun", that is, "one or more". "at least one" means one or more, and "more" means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character "/" generally indicates that the previous and next associated objects are in an "or" relationship. For example, A/B means: A or B. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or plural.

As the antenna scale increases, the base station needs more channel state information-reference signal (CSI-RS) ports to measure all antenna ports. Since the number of ports that can be measured by each CSI-RS is limited, according to the current protocol, completing the channel measurement of all antenna ports requires configuring multiple sets of CSI-RS resources for channel measurement. The larger the antenna scale, the more sets of CSI-RS resources need to be configured, the more complex the configuration is, and the signaling overhead is large.

For example, currently, in the NR protocol, CSI-RS supports up to 32 ports. If 256 antenna ports need to be measured, 8 sets of CSI-RS resources need to be configured for the measurement of all antenna ports, which has high configuration complexity and large signaling overhead.

The present application provides a resource configuration method, which avoids the configuration of multiple CSI-RS resources by measuring all antenna ports once in a patrol manner, thereby reducing the configuration complexity and signaling overhead.

It should be understood that the following is only for the convenience of understanding and explanation, and the method provided by the embodiment of the present application is described in detail by taking the interaction between the terminal device and the network device as an example. However, this should not constitute any limitation on the execution subject of the method provided by the present application. For example, the terminal device shown in the embodiment below can be replaced by a component (such as a chip or a chip system) configured in the terminal device. The network device shown in the embodiment below can also be replaced by a component (such as a chip or a chip system) configured in the network device.

The embodiments shown below do not particularly limit the specific structure of the execution subject of the method provided in the embodiments of the present application. As long as it is possible to communicate according to the method provided in the embodiments of the present application by running a program that records the code of the method provided in the embodiments of the present application, for example, the execution subject of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.

Fig. 2 is a schematic flow chart of a method 200 for resource configuration provided in an embodiment of the present application. The method 200 includes the following steps.

S210, the network device sends first information to the terminal device.

Correspondingly, the terminal device receives the first information from the network device.

The first information is used to indicate a patrol period, where the patrol period is the number of times N that a channel state information reference signal CSI-RS needs to be sent for channel state information CSI measurement, where N is a positive integer.

It should be understood that the number N of times that the CSI-RS needs to be sent for CSI measurement can be understood as that for this CSI measurement, N identical CSI-RS need to be sent.

In a possible implementation manner, the polling period is determined according to the number of ports required to be measured for CSI measurement and the number of ports corresponding to CSI-RS.

Exemplarily, the number of ports that need to be measured for this CSI measurement is 256 ports, and this CSI measurement implements the measurement of the 256 ports by configuring 1 CSI-RS. The number of ports corresponding to the CSI-RS is 32 ports. The patrol period is 8, which is the number of ports that need to be measured for this CSI measurement divided by the number of ports corresponding to the CSI-RS. That is, the number of times the CSI-RS needs to be sent for this CSI measurement is 8 times, or the CSI-RS corresponding to 32 ports needs to be sent 8 times for this CSI measurement.

In a possible implementation manner, the first information includes a patrol period, and the first information is carried in CSI-RS resource configuration information.

It should be understood that the first information includes the patrol period, and the first information being carried in the CSI-RS resource configuration information can be understood as the network device configuring the patrol period in the CSI-RS resource configuration information.

It should be noted that when the first information includes the patrol period, that is, the network device configures the patrol period in the CSI resource configuration information, at this time, the number of ports corresponding to the N CSI-RSs that need to be sent for the CSI measurement needs to be the same. In other words, for this CSI measurement, since the N CSI-RSs share one CSI resource configuration, the number of ports for the N CSI-RSs that need to be sent is the same. For example, this CSI measurement needs to send 8 CSI-RSs. Since the 8 CSI-RSs share one CSI resource configuration, the number of ports corresponding to the 8 CSI-RSs is the same, for example, 32 ports.

In a possible implementation manner, the first information includes a total number of ports, where the total number of ports is the number of ports that need to be measured for CSI measurement, and the first information is carried in CSI reporting configuration information.

It should be understood that the first information includes the total number of ports, and the first information being carried in the CSI reporting configuration information can be understood as the network device configuring the total number of ports in the CSI reporting configuration information.

It should be noted that when the first information includes the total number of ports, that is, the network device configures the total number of ports in the CSI reporting configuration information, At this time, the number of ports corresponding to the N CSI-RSs that need to be sent for CSI measurement needs to be the same. In other words, for this CSI measurement, it is necessary to send N CSI-RSs with the same number of corresponding ports. For example, this CSI measurement needs to send 8 CSI-RSs, and the number of ports corresponding to the 8 CSI-RSs is 32, that is, the 8 CSI-RSs correspond to 32 ports. Based on this, the patrol period can be determined according to the total number of ports and the number of ports corresponding to the CSI-RSs.

It should be noted that the above configuration method for the first information is only an example and this application does not limit it.

S220: The network device sends N CSI-RSs according to a patrol period.

Accordingly, the terminal device receives N CSI-RS according to the patrol period.

Specifically, the network device sends N CSI-RSs to the terminal device in a polling manner according to a polling period.

Exemplarily, when the polling period is 8, that is, the number of times the CSI-RS needs to be sent for this CSI measurement is 8 times, the network device sends 8 CSI-RSs to the terminal device in a polling manner.

In a possible implementation manner, the network device periodically sends N CSI-RSs according to a patrol period.

Specifically, for a periodic CSI-RS or a semi-static CSI-RS, the network device sends N CSI-RSs to the terminal device in a periodic manner according to a patrol period.

Exemplarily, as shown in Figure 3, for periodic CSI-RS, its period is 5ms, the number of ports that need to be measured in this CSI measurement is 256 ports, the number of ports corresponding to CSI-RS is 32 ports, and the patrol period is 8. The network device sends CSI-RS with a period of 5ms, where 8 consecutive CSI-RS correspond to the 256 ports that need to be measured in this CSI measurement.

In a possible implementation manner, the network device sends N CSI-RSs aperiodically according to a patrol period.

Specifically, for the non-periodic CSI-RS, the network device sends N CSI-RS to the terminal device in a non-periodic manner according to the patrol period.

Exemplarily, for non-periodic CSI-RS, the number of CSI-RS transmissions indicated by the network device is the patrol period. For example, for this CSI measurement, the number of CSI-RS transmissions indicated by the network device through signaling is 8 times, that is, the patrol period is 8, then the network device sends 8 CSI-RS to the terminal device non-periodically according to the patrol period, or in other words, the number of times the network device needs to send the CSI-RS corresponding to 32 ports to the terminal device for this CSI measurement is 8 times.

Optionally, S221, the network device determines a time interval.

The time interval is the duration between any two adjacent CSI-RSs in sending N CSI-RSs.

It should be noted that when the network device sends N CSI-RS, the duration between any two adjacent CSI-RS may be the same or different, and this application does not limit this. Therefore, this application does not limit the number of time intervals determined by the network device. For example, when the duration between any two adjacent CSI-RS is the same, the network device determines one time interval; when the duration between any two adjacent CSI-RS is completely different, the network device determines N-1 time intervals, and so on.

Specifically, when the network device sends N CSI-RSs aperiodically according to the patrol period, the network device also needs to determine a time interval so that the network device sends N CSI-RSs aperiodically according to the patrol period and the time interval.

Optionally, after determining the time interval, the network device carries the time interval in the first information and sends it to the terminal device.

Exemplarily, for non-periodic CSI-RS, the number of times the network device indicates that the CSI-RS is sent is the patrol period. For example, for this CSI measurement, the number of times the network device indicates that the CSI-RS is sent is 8 times by signaling, that is, the patrol period is 8. The time interval between any two adjacent CSI-RSs determined by the network device is 5ms, then the network device sends 8 CSI-RSs to the terminal device non-periodically according to the patrol period, and the interval between each transmission is 5ms, or the number of times the network device needs to send the CSI-RS corresponding to 32 ports to the terminal device for this CSI measurement is 8 times, and the interval between each transmission is 5ms.

It should be noted that the above-mentioned method of sending N CSI-RSs by the network device according to the patrol period is only an example, and this application is not limited to this.

S230, the terminal device sends a measurement report to the network device.

Correspondingly, the network device receives the measurement report from the terminal device.

The measurement report is used to indicate the measurement result of the CSI measurement.

Specifically, after receiving N CSI-RS from the network device according to the patrol period, the terminal device measures all ports corresponding to the N CSI-RS to complete this CSI measurement, and reports the measurement result of this CSI measurement to the network device.

It should be understood that the terminal device's measurement of the ports corresponding to the N CSI-RSs can be understood as, for this CSI measurement, the terminal device completes a CSI measurement by measuring all ports corresponding to the N CSI-RSs.

Based on the above scheme, the network device configures the first information for indicating the patrol period in a variety of ways and sends it to the terminal device. According to the first information, the terminal device measures all antenna ports once in a patrol manner for multiple CSI-RS received from the network device, that is, the multiple CSI-RS being patrolled are regarded as one CSI-RS resource, thereby avoiding the configuration of multiple CSI-RS resources and reducing the complexity of the configuration. speed and signaling overhead.

Optionally, when the first information sent by the network device to the terminal device includes the total number of ports, the terminal device further determines the patrol period according to the total number of ports, and the method 200 may further include:

S240, the terminal device determines the patrol period according to the total number of ports and the number of ports corresponding to the CSI-RS.

Specifically, when the terminal device receives the first information sent from the network device, the first information includes the total number of ports, and the terminal device determines the patrol period according to the total number of ports and the number of ports corresponding to the CSI-RS.

Exemplarily, the total number of ports is 256, that is, the number of ports that need to be measured in this CSI measurement is 256 ports, and the number of ports corresponding to one CSI-RS is 32 ports. The terminal device determines the patrol period to be 8 based on the total number of ports and the number of ports corresponding to the CSI-RS, that is, the patrol period is the total number of ports divided by the number of ports corresponding to the CSI-RS, which is 8.

Optionally, the network device and the terminal device also need to determine a correspondence between N CSI-RSs and ports to be measured in this CSI measurement. The method 200 may further include:

S250, determining a correspondence between N CSI-RSs and ports to be measured in this CSI measurement.

It should be understood that the correspondence between the N CSI-RSs and the ports to be measured in this CSI measurement means that each CSI-RS in the N CSI-RSs corresponds to a specific port in the ports to be measured in this CSI measurement.

It should be noted that the ports that need to be measured in this CSI measurement corresponding to the N CSI-RSs are different.

Exemplarily, the number of ports that need to be measured in this CSI measurement is 256 ports, and N is 8. Then the correspondence between the N CSI-RSs and the ports that need to be measured in this CSI measurement is: the first CSI-RS corresponds to the 1st to 32nd ports, the second CSI-RS corresponds to the 33rd to 64th ports, the third CSI-RS corresponds to the 65th to 96th ports, the fourth CSI-RS corresponds to the 97th to 128th ports, the fifth CSI-RS corresponds to the 129th to 160th ports, the sixth CSI-RS corresponds to the 161st to 192nd ports, the seventh CSI-RS corresponds to the 193rd to 224th ports, and the eighth CSI-RS corresponds to the 225th to 256th ports.

In a possible implementation manner, the network device and the terminal device determine a correspondence between N CSI-RSs and ports that need to be measured for CSI measurement.

Specifically, the network device and the terminal device determine the correspondence between N CSI-RSs and the ports to be measured for CSI measurement in a manner agreed upon by the protocol.

In a possible implementation manner, the network device sends the correspondence between N CSI-RSs and ports to be measured for CSI measurement to the terminal device by way of indication.

Specifically, the network device sends first indication information to the terminal device, where the first indication information is used to indicate the correspondence between N CSI-RSs and ports that need to be measured for CSI measurement.

It should be understood that for periodic CSI-RS, semi-static CSI-RS and aperiodic CSI-RS, the manners for determining the correspondence between N CSI-RS and the ports to be measured in this CSI measurement are different.

Case 1: For periodic CSI-RS or semi-static CSI-RS, the correspondence between the N CSI-RS and the ports to be measured in this CSI measurement can be determined according to the sending time of the N CSI-RS or the scramble identity document (scramble ID) of the N CSI-RS.

In a possible implementation manner, the correspondence between the N CSI-RSs and the ports to be measured in this CSI measurement is determined according to the sending times of the N CSI-RSs.

Specifically, the signaling configuration or protocol specifies the N CSI-RS transmission times and the ports corresponding to each CSI-RS, that is, the transmission times of the N CSI-RS determine the corresponding relationship between the N CSI-RS and the ports to be measured in this CSI measurement. For example, according to the existing protocol, the transmission time of the periodic CSI-RS or the semi-static CSI-RS is given by the following formula:

in, represents the number of time slots in a frame, _nf represents the system frame number (SFN), represents the index of the time slot in the frame, T _offset represents the time slot offset in a period, _and T _CSI-RS represents the period of CSI-RS. Corresponding to the port that needs to be measured in this CSI measurement.

In a possible implementation manner, the correspondence between the N CSI-RSs and the ports to be measured in this CSI measurement is determined according to the scrambling code identities of the N CSI-RSs.

Specifically, a scrambling code identity needs to be configured when the CSI-RS pilot sequence is generated. The sequences corresponding to different scrambling code identities have low correlation. Different scrambling code identities can be configured for CSI-RS sequences at different sending times by means of protocol provisions or signaling configuration, thereby determining the correspondence between N CSI-RSs and the ports to be measured in this CSI measurement.

Case 2: For non-periodic CSI-RS, the transmission order of N CSI-RS or the scrambling code identity of N CSI-RS can be used to determine the transmission order of N CSI-RS or the scrambling code identity of N CSI-RS. Determine the correspondence between N CSI-RSs and the ports to be measured in this CSI measurement.

In a possible implementation manner, the transmission order of the N CSI-RSs is configured by protocol specification or signaling configuration, that is, the correspondence between the N CSI-RSs and the ports to be measured in this CSI measurement.

It should be noted that the above method of determining the correspondence between N CSI-RSs and the ports to be measured in this CSI measurement is only an example, and this application is not limited to this.

FIG. 4 is a schematic flowchart of a method 400 for resource configuration provided in an embodiment of the present application.

S410, determining first information.

Specifically, the network device determines first information for indicating a patrol period.

The patrol period is the number of times N that the CSI-RS needs to be sent for CSI measurement, where N is a positive integer.

The first information includes a patrol period, and the first information is carried in the CSI-RS resource configuration information.

Specifically, the network device determines the patrol period according to the number of ports required to be measured for CSI measurement and the number of ports corresponding to CSI-RS, the first information includes the patrol period, and the patrol period is configured in the CSI-RS resource configuration information.

For example, the number of ports that need to be measured in this CSI measurement is 256 ports, and this CSI measurement implements the measurement of the 256 ports by configuring 1 CSI-RS, and the number of ports corresponding to the CSI-RS is 32 ports, then the patrol period is the number of ports that need to be measured in this CSI measurement divided by the number of ports corresponding to the CSI-RS, which is 8, that is, the number of times the CSI-RS needs to be sent in this CSI measurement is 8 times, or the CSI-RS corresponding to 32 ports needs to be sent 8 times in this CSI measurement. The network device configures the patrol period in the CSI-RS resource configuration information.

It should be noted that the above description of the first information can refer to the relevant description in S210. Here, in order to avoid redundancy, its detailed description is omitted.

It should be noted that the above method of determining the first information is only an example and this application does not limit it.

S420: The network device sends first information to the terminal device.

S430: The network device sends N CSI-RSs according to a patrol period.

It should be noted that the above-mentioned process of S430 is similar to the process of S220, and its detailed description is omitted here to avoid redundancy.

S440: Determine a correspondence between N CSI-RSs and ports to be measured in this CSI measurement.

It should be understood that for this CSI measurement, the network device and the terminal device also need to determine the correspondence between N CSI-RSs and the ports to be measured for this CSI measurement, so that the terminal device can complete the CSI measurement in the corresponding port order.

It should be understood that for periodic CSI-RS, semi-static CSI-RS and aperiodic CSI-RS, it determines the N CSI-RS and the current CSI There are different ways to measure the correspondence between the ports to be measured. For a specific determination method, reference may be made to the relevant description in S250 .

It should be noted that the process of S440 is similar to the process of S250, and its detailed description is omitted here to avoid redundancy.

S450: The terminal device measures the ports corresponding to the N CSI-RSs.

Specifically, after receiving N CSI-RSs from the network device according to the patrol period, the terminal device measures all ports corresponding to the N CSI-RSs to complete this CSI measurement.

It should be understood that the terminal device's measurement of the ports corresponding to the N CSI-RSs can be understood as, for this CSI measurement, the terminal device completes a CSI measurement by measuring all ports corresponding to the N same CSI-RSs.

S460, the terminal device sends a measurement report to the network device.

Specifically, after the terminal device completes the CSI measurement, it carries the measurement result of the CSI measurement in a measurement report and sends it to the network device.

Based on the above scheme, the network device configures the first information for indicating the patrol period and sends it to the terminal device. According to the first information, the terminal device measures all antenna ports once in a patrol manner for multiple CSI-RS received from the network device, that is, the multiple patrolled CSI-RS are regarded as one CSI-RS resource, avoiding the configuration of multiple CSI-RS resources and reducing the configuration complexity and signaling overhead.

FIG. 5 is a schematic flowchart of a method 500 for resource configuration provided in an embodiment of the present application.

S510, determine first information.

It should be understood that the number of times N that the CSI-RS needs to be sent for CSI measurement can be understood as that for this CSI measurement, N identical CSI-RS need to be sent.

The first information includes the total number of ports, which is the number of ports required to be measured for CSI measurement. The first information is carried in the CSI reporting configuration information.

Specifically, the network device determines the number of ports that need to be measured in this CSI measurement, that is, the total number of ports, the first information includes the total number of ports, and the total number of ports is configured in the CSI reporting configuration information.

Exemplarily, the number of ports that need to be measured in this CSI measurement is 256 ports, that is, the total number of ports is 256, and the network device configures the total number of ports in the CSI reporting configuration information.

It should be noted that when the first information includes the total number of ports, that is, the network device configures the total number of ports in the CSI reporting configuration information, at this time, the number of ports corresponding to the N CSI-RSs that need to be sent for CSI measurement needs to be the same. In other words, for this CSI measurement, N CSI-RSs with the same number of corresponding ports need to be sent. For example, this CSI measurement needs to send 8 CSI-RSs, and the number of ports corresponding to the 8 CSI-RSs is 32, that is, the 8 CSI-RSs correspond to 32 ports.

S520: The network device sends first information to the terminal device.

S530, the terminal device determines the patrol period according to the total number of ports and the number of ports corresponding to the CSI-RS.

Specifically, after the terminal device receives the first information sent from the network device, the first information includes the total number of ports, and the terminal device determines the patrol period according to the total number of ports and the number of ports corresponding to the CSI-RS.

It should be noted that the above-mentioned process of S530 is similar to the process of S240, and its detailed description is omitted here to avoid redundancy.

S540, the network device determines a time interval.

The time interval is the duration between any two adjacent CSI-RSs in sending N CSI-RSs, and the time interval is used to send N CSI-RSs in a non-periodic manner.

It should be noted that the above-mentioned process of S540 is similar to the process of S221. Here, in order to avoid redundancy, the detailed description thereof is omitted.

It should be noted that the present application does not limit the execution order of the above-mentioned S530 and S540. For example, S530 and S540 can be executed simultaneously; S530 can also be executed first, and then S540; S540 can also be executed first, and then S530, and so on.

S550: The network device sends N CSI-RSs according to a patrol period.

Exemplarily, the network device sends N CSI-RSs aperiodically according to the polling period and time interval.

It should be noted that the above-mentioned process of S550 is similar to the process of S220, and its detailed description is omitted here to avoid redundancy.

S560: Determine a correspondence between N CSI-RSs and ports to be measured in this CSI measurement.

It should be understood that for periodic CSI-RS, semi-static CSI-RS and non-periodic CSI-RS, the methods for determining the correspondence between N CSI-RS and the ports to be measured for this CSI measurement are different. For the specific determination method, please refer to the relevant description in S250.

It should be noted that the process of S560 is similar to the process of S250, and its detailed description is omitted here to avoid redundancy.

S570: The terminal device measures the ports corresponding to the N CSI-RSs.

S580, the terminal device sends a measurement report to the network device.

Based on the above scheme, for N CSI-RS with the same number of corresponding ports, the network device configures the first information indicating the patrol period and sends it to the terminal device. According to the first information, the terminal device will receive multiple CSI-RS from the network device and perform a measurement on all antenna ports in a patrol manner, that is, the multiple patrolled CSI-RS are regarded as one CSI-RS resource, avoiding the configuration of multiple CSI-RS resources. At the same time, since the number of ports corresponding to the N CSI-RS is the same, it is only necessary to configure the total number of ports required for CSI measurement in the CSI reporting configuration information, further reducing the signaling overhead.

It is understood that the examples in Figures 2 to 5 of the embodiments of the present application are only for the convenience of those skilled in the art to understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to the specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the examples in Figures 2 to 5, and such modifications or changes also fall within the scope of the embodiments of the present application.

It can also be understood that some optional features in the embodiments of the present application may not depend on other features in some scenarios, or may be combined with other features in some scenarios, without limitation.

It can also be understood that the solutions in the various embodiments of the present application can be used in reasonable combination, and the explanations or descriptions of the various terms appearing in the embodiments can be mutually referenced or explained in the various embodiments, without limitation.

It can also be understood that the sizes of the various digital serial numbers in the embodiments of the present application do not mean the order of execution, but are only distinguished for the convenience of description and should not constitute any limitation on the implementation process of the embodiments of the present application.

It can also be understood that in the various embodiments of the present application, some message names are involved, such as the first information, etc. It should be understood that their naming does not limit the protection scope of the embodiments of the present application.

It can also be understood that in the above-mentioned various method embodiments, the methods and operations implemented by the terminal device can also be implemented by components that can be implemented by the terminal device (such as chips or circuits); in addition, the methods and operations implemented by the network device can also be implemented by components that can be implemented by the network device (such as chips or circuits), without limitation. Corresponding to the methods given in the above-mentioned various method embodiments, the embodiments of the present application also provide corresponding devices, which include modules for executing the corresponding modules in the above-mentioned various method embodiments. The module can be software, It can also be hardware, or a combination of software and hardware. It can be understood that the technical features described in the above method embodiments are also applicable to the following device embodiments.

It should be understood that the network device or terminal device can perform some or all of the steps in the above embodiments, and these steps or operations are only examples. The embodiments of the present application can also perform other operations or variations of various operations. In addition, each step can be performed in a different order presented in the above embodiments, and it is possible not to perform all the operations in the above embodiments.

The communication method provided by the embodiment of the present application is described in detail above in conjunction with Figures 2 to 5, and the communication device provided by the embodiment of the present application is described in detail below in conjunction with Figures 6 to 8. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, and therefore, the content not described in detail can be referred to the method embodiment above, and for the sake of brevity, some content will not be repeated.

Fig. 6 is a schematic block diagram of a communication device provided in an embodiment of the present application. The device 600 includes a transceiver unit 610, which can be used to implement corresponding communication functions. The transceiver unit 610 can also be called a communication interface or a communication unit.

Optionally, the device 600 may further include a processing unit 620, and the processing unit 620 may be used for performing data processing.

Optionally, the device 600 also includes a storage unit, which can be used to store instructions and/or data, and the processing unit 620 can read the instructions and/or data in the storage unit so that the device implements the actions of different terminal devices in the aforementioned method embodiments, for example, the actions of a network device or a terminal device.

The device 600 can be used to execute the actions performed by the network device or terminal device in the above method embodiments. In this case, the device 600 can be a network device or a terminal device, or a component of a network device or a terminal device. The transceiver unit 610 is used to execute the transceiver-related operations of the network device or the terminal device in the above method embodiments, and the processing unit 720 is used to execute the processing-related operations of the network device or the terminal device in the above method embodiments.

It should also be understood that the device 600 here is embodied in the form of a functional unit. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a merged logic circuit and/or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the device 600 can be specifically a network device or a terminal device in the above-mentioned embodiment, and can be used to execute the various processes and/or steps corresponding to the network device or the terminal device in the above-mentioned method embodiments, or the device 600 can be specifically a network device or a terminal device in the above-mentioned embodiment, and can be used to execute the various processes and/or steps corresponding to the network device or the terminal device in the above-mentioned method embodiments. To avoid repetition, it will not be repeated here.

The apparatus 600 of each of the above-mentioned schemes has the function of implementing the corresponding steps performed by the network device or terminal device in the above-mentioned method, or the apparatus 600 of each of the above-mentioned schemes has the function of implementing the corresponding steps performed by the network device or terminal device in the above-mentioned method. The functions can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor, respectively performing the sending and receiving operations and related processing operations in each method embodiment.

In addition, the transceiver unit 610 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit.

It should be noted that the device in FIG6 may be a network element or device in the aforementioned embodiment, or may be a chip or a chip system, such as a system on chip (SoC). The transceiver unit may be an input and output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip. This is not limited here.

As shown in Fig. 7, an embodiment of the present application provides another communication device 700. The device 700 includes a processor 710, the processor 710 is coupled to a memory 720, the memory 720 is used to store computer programs or instructions and/or data, and the processor 710 is used to execute the computer programs or instructions stored in the memory 720, or read the data stored in the memory 720, so as to execute the methods in the above method embodiments.

Optionally, there are one or more processors 710 .

Optionally, the memory 720 is one or more.

Optionally, the memory 720 is integrated with the processor 710 or provided separately.

Optionally, as shown in Fig. 7, the device 700 further includes a transceiver 730, and the transceiver 730 is used for receiving and/or sending signals. For example, the processor 710 is used for controlling the transceiver 730 to receive and/or send signals.

As a solution, the device 700 is used to implement the operations performed by the network device or the terminal device in the above various method embodiments.

For example, the processor 710 is used to execute the computer program or instructions stored in the memory 720 to implement the relevant operations of the terminal device in each method embodiment above. For example, the terminal device in any one of the embodiments shown in Figures 2 to 5, or the method of the terminal device in any one of the embodiments shown in Figures 2 to 5.

It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory and/or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, a RAM may be used as an external cache. By way of example and not limitation, RAM includes the following forms: static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

As shown in FIG8 , an embodiment of the present application provides a chip system 800 . The chip system 800 (or also referred to as a processing system) includes a logic circuit 810 and an input/output interface 820 .

Among them, the logic circuit 810 can be a processing circuit in the chip system 800. The logic circuit 810 can be coupled to the storage unit and call the instructions in the storage unit so that the chip system 800 can implement the methods and functions of each embodiment of the present application. The input/output interface 820 can be an input/output circuit in the chip system 800, outputting information processed by the chip system 800, or inputting data or signaling information to be processed into the chip system 800 for processing.

As a solution, the chip system 800 is used to implement the operations performed by the network device or the terminal device in the above various method embodiments.

For example, the logic circuit 810 is used to implement operations related to processing by the terminal device in the above method embodiments, such as the processing-related operations of the terminal device in any one of the embodiments shown in Figures 2 to 5; the input/output interface 820 is used to implement operations related to sending and/or receiving by the terminal device in the above method embodiments, such as the sending and/or receiving-related operations performed by the terminal device in any one of the embodiments shown in Figures 2 to 5.

An embodiment of the present application also provides a computer-readable storage medium on which computer instructions for implementing the methods executed by a network device or a terminal device in the above-mentioned method embodiments are stored.

For example, when the computer program is executed by a computer, the computer can implement the method executed by the network device or the terminal device in each embodiment of the above method.

An embodiment of the present application also provides a computer program product, comprising instructions, which, when executed by a computer, implement the methods performed by a network device or a terminal device in the above-mentioned method embodiments.

The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, which will not be repeated here.

In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiments of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. For example, the computer can be a personal computer, a server, or a network device. The computer instructions can be stored in a computer-readable storage medium, or transferred from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one computer-readable storage medium to another computer-readable storage medium. A website, computer, server or data center transmits to another website, computer, server or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD), etc. For example, the aforementioned available medium includes, but is not limited to, various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A method for resource allocation, characterized by comprising:

The network device sends first information to the terminal device, where the first information is used to indicate a patrol period, where the patrol period is the number of times N that a channel state information reference signal CSI-RS needs to be sent for channel state information CSI measurement, where N is a positive integer;

The network device sends N CSI-RSs according to the patrol period;

The network device receives a measurement report from the terminal device, where the measurement report is used to indicate a measurement result of the CSI measurement.
The method according to claim 1 is characterized in that the first information includes the patrol period, and the first information is carried in CSI-RS resource configuration information.
The method according to claim 1 is characterized in that the first information includes the total number of ports, the total number of ports is the number of ports required to be measured for the CSI measurement, the first information is carried in the CSI reporting configuration information, and the number of ports corresponding to the N CSI-RSs is the same.
The method according to any one of claims 1 to 3 is characterized in that the patrol period is determined according to the number of ports required to be measured for the CSI measurement and the number of ports corresponding to the CSI-RS.
The method according to any one of claims 1 to 4, characterized in that the network device sends N CSI-RS according to the patrol period, comprising:

The network device periodically sends N CSI-RSs according to the patrol period.
The method according to any one of claims 1 to 4, characterized in that the network device sends N CSI-RS according to the patrol period, comprising:

The network device sends N CSI-RSs aperiodically according to the patrol period.
The method according to claim 6, characterized in that the method further comprises:

The network device determines a time interval, where the time interval is a duration between sending any two adjacent CSI-RSs among the N CSI-RSs, and the first information further includes the time interval;

The network device aperiodically sends N CSI-RSs according to the patrol period, including:

The network device aperiodically sends the N CSI-RSs according to the patrol period and the time interval.
The method according to any one of claims 1 to 7, characterized in that the method further comprises:

The network device determines a correspondence between the N CSI-RSs and ports that need to be measured for the CSI measurement.
The method according to any one of claims 1 to 7, characterized in that the method further comprises:

The network device sends first indication information to the terminal device, where the first indication information is used to indicate the correspondence between the N CSI-RSs and the ports that need to be measured for the CSI measurement.
The method according to claim 8 or 9 is characterized in that the corresponding relationship is determined according to the transmission time of the N CSI-RS or the scrambling code identity of the N CSI-RS.
A method for resource allocation, characterized by comprising:

The terminal device receives first information from the network device, where the first information is used to indicate a patrol period, where the patrol period is the number N of times a channel state information reference signal CSI-RS needs to be sent for channel state information CSI measurement, where N is a positive integer;

The terminal device receives N CSI-RSs according to the patrol period;

The terminal device sends a measurement report to the network device, where the measurement report is used to indicate a measurement result of the CSI measurement.
The method according to claim 11 is characterized in that the first information includes the patrol period, and the first information is carried in CSI-RS resource configuration information.
The method according to claim 11 is characterized in that the first information includes the total number of ports, the total number of ports is the number of ports required to be measured for the CSI measurement, the first information is carried in the CSI reporting configuration information, and the number of ports corresponding to the N CSI-RSs is the same.
The method according to claim 13, characterized in that the method further comprises:

The terminal device determines the patrol period according to the total number of ports and the number of ports corresponding to the CSI-RS.
The method according to any one of claims 11 to 14, characterized in that the terminal device receives N CSI-RS according to the patrol period, comprising:

The terminal device periodically receives N CSI-RSs according to the patrol period.
The method according to any one of claims 11 to 14, characterized in that the terminal device receives N CSI-RS according to the patrol period, comprising:

The terminal device receives N CSI-RSs aperiodically according to the patrol period.
The method according to claim 16, wherein the first information further includes a time interval, and the terminal device aperiodically receives N CSI-RS according to the patrol period, comprising:

The terminal device receives N CSI-RSs non-periodically according to the patrol period and the time interval, where the time interval is the duration between sending any two adjacent CSI-RSs among the N CSI-RSs.
The method according to any one of claims 11 to 17, characterized in that the method further comprises:

The terminal device determines the correspondence between the N CSI-RSs and the ports that need to be measured for the CSI measurement.
The method according to any one of claims 11 to 17, characterized in that the method further comprises:

The terminal device receives first indication information from the network device, where the first indication information is used to indicate the correspondence between the N CSI-RSs and the ports that need to be measured for the CSI measurement.
The method according to claim 18 or 19 is characterized in that the corresponding relationship is determined according to the transmission time of the N CSI-RS or the scrambling code identity of the N CSI-RS.
A communication device, comprising:

A processor, configured to execute a computer program stored in a memory so that the communication device executes the method according to any one of claims 1 to 20.
A computer-readable storage medium, characterized in that a computer program or instruction is stored thereon, characterized in that when the computer program or instruction is executed by a processor, the method as claimed in any one of claims 1 to 20 is executed.
A computer program product comprising instructions which, when run on a computer, cause the method as claimed in any one of claims 1 to 20 to be performed.
A chip system, characterized in that it includes: a processor, used to call and run a computer program or instruction from a memory, so that a communication device equipped with the chip system implements the method as described in any one of claims 1 to 20.