CN117956618A

CN117956618A - Resource allocation method and device

Info

Publication number: CN117956618A
Application number: CN202211343586.2A
Authority: CN
Inventors: 袁一凌; 高君慧; 叶宸成; 金黄平; 韩玮
Original assignee: Huawei Technologies Co Ltd; Peng Cheng Laboratory
Current assignee: Huawei Technologies Co Ltd; Peng Cheng Laboratory
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2024-04-30
Also published as: WO2024093646A1

Abstract

The embodiment of the application provides a method for configuring resources, which comprises the following steps: the network equipment sends first information to the terminal equipment, wherein the first information is used for indicating a round robin period, the round robin period is the number of times N, N being a positive integer, of channel state information reference signals (CSI-RS) which need to be sent for measuring Channel State Information (CSI); the network equipment transmits N CSI-RSs according to the round period; the network device receives a measurement report from the terminal device, the measurement report indicating a measurement result of the CSI measurement. Therefore, by measuring all antenna ports once in a round robin mode for multiple CSI-RSs, the configuration of multiple CSI-RS resources is avoided, and the configuration complexity and the signaling overhead are reduced.

Description

Resource allocation method and device

Technical Field

The embodiment of the application relates to the technical field of wireless communication, in particular to a method and a device for configuring resources.

Background

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

Under the current protocol, considering resource constraint, the number of ports that can be measured by a reference signal (REFERENCE SIGNAL, RS) (for example, a channel state information reference signal (CHANNEL STATE information REFERENCE SIGNAL, CSI-RS)) is limited, and when the antenna specification is large, multiple sets of reference signals need to be configured, and the configuration is complex. As the antenna size increases, how to reduce the complexity and signaling overhead of the reference signal resource allocation is a problem that needs to be solved.

Disclosure of Invention

The embodiment of the application provides a resource allocation method, which avoids allocation of a plurality of CSI-RS resources and reduces allocation complexity and signaling overhead by measuring all antenna ports once in a round robin mode for a plurality of CSI-RSs.

In a first aspect, a method of resource allocation is provided. The method may be performed by the network device or may be performed by a component (e.g., a chip or a circuit) of the network device, which is not limited thereto, and is described below as being performed by the network device for convenience of description.

The method may include: the network equipment sends first information to the terminal equipment, wherein the first information is used for indicating a round robin period, the round robin period is the number of times N, N being a positive integer, of channel state information reference signals (CSI-RS) which need to be sent for measuring Channel State Information (CSI); the network equipment transmits N CSI-RSs according to the round period; the network device receives a measurement report from the terminal device, the measurement report indicating a measurement result of the CSI measurement.

Based on the scheme, the network equipment configures the first information for indicating the round robin period and sends the multiple CSI-RSs to the terminal equipment in a round robin mode, so that the multiple CSI-RSs are measured once for all antenna ports in the round robin mode, namely, the multiple CSI-RSs in the round robin mode are regarded as one CSI-RS resource, the configuration of the multiple CSI-RS resources is avoided, and the configuration complexity and signaling overhead are reduced.

In one possible implementation, the first information includes the round robin period, and the first information is carried in CSI-RS resource allocation information.

Based on the scheme, the network equipment configures the round robin period in the CSI-RS resource configuration information, and because a plurality of CSI-RSs for round robin are regarded as one CSI-RS resource, the configuration of the plurality of CSI-RS resources is avoided, the configuration complexity and the signaling overhead are reduced, and meanwhile, the round robin period can be flexibly configured.

In one 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 in the CSI measurement, the first information is carried in CSI reporting configuration information, and the number of ports corresponding to the N CSI-RS is the same.

Based on the scheme, for N CSI-RSs with the same number of corresponding ports, the network equipment configures the number of ports to be measured for CSI measurement in the CSI-RS reporting configuration information, so that a round robin period can be determined according to the number of ports to be measured for CSI measurement and the number of ports corresponding to the CSI-RSs, and signaling overhead is further reduced.

In one possible implementation, the round robin period is determined according to the number of ports that the CSI measurement needs to measure and the number of ports corresponding to the CSI-RS.

In one possible implementation, the network device sends N CSI-RS according to the round robin period, including: the network device periodically transmits N CSI-RSs according to the round robin period.

Based on the scheme, for the periodical CSI-RS, the network equipment can send N CSI-RSs in a periodical mode according to the round robin period, so that the diversity of schemes for sending the N CSI-RSs is increased.

In one possible implementation, the network device sends N CSI-RS according to the round robin period, including: the network device aperiodically transmits N CSI-RSs according to the round robin period.

Based on the scheme, for aperiodic CSI-RS, the network device can send N CSI-RS in an aperiodic manner according to the round robin period, which increases the diversity of schemes for sending N CSI-RS.

In one possible embodiment, the method further comprises: the network equipment determines a time interval, wherein the time interval is the duration between any two adjacent CSI-RSs in N CSI-RSs, and the first information also comprises the time interval; the network device aperiodically transmits N CSI-RSs according to the round robin period, including: the network device aperiodically transmits N CSI-RSs according to the round robin period and the time interval.

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

In one possible embodiment, the method further comprises: the network device determines the correspondence between the N CSI-RSs and the ports to be measured for the CSI measurement.

Based on the scheme, the network equipment can determine the corresponding relation between N CSI-RSs and the ports to be measured for the CSI measurement according to the protocol convention mode, so that the network equipment and the terminal equipment can jointly determine the corresponding relation according to the protocol convention, information interaction between the network equipment and the terminal equipment is not needed, and signaling overhead is reduced.

In one possible embodiment, 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 CSI measurement.

Based on the scheme, the network equipment can indicate the corresponding relation between the N CSI-RSs and the ports to be measured for the CSI measurement to the terminal equipment, so that the terminal equipment can acquire the corresponding relation.

In one possible implementation manner, the correspondence is determined according to the transmission time instants of the N CSI-RS or scrambling code identities of the N CSI-RS.

Based on the scheme, the network equipment can determine the corresponding relation between the N CSI-RSs and the ports to be measured for the CSI measurement according to the transmission time of the N CSI-RSs or the scrambling code identification of the N CSI-RSs, so that the diversity of the scheme for determining the corresponding relation is increased.

In a second aspect, a method of resource allocation is provided. The method may be performed by the terminal device or may be performed by a component (e.g., a chip or a circuit) of the UE, which is not limited, and is described below as an example performed by the terminal device for convenience of description.

The method may include: the terminal equipment receives first information from the network equipment, wherein the first information is used for indicating a round period, the round period is the number of times N of transmitting a channel state information reference signal (CSI-RS) required by Channel State Information (CSI) measurement, and N is a positive integer; the terminal equipment receives N CSI-RSs according to the round period; the terminal device sends a measurement report to the network device, the measurement report indicating a measurement result of the CSI measurement.

Based on the scheme, the terminal equipment receives the first information configured by the network equipment and used for indicating the round robin period, and according to the first information, the received multiple CSI-RSs are measured for all antenna ports in a round robin mode, namely, the multiple CSI-RSs in the round robin are regarded as one CSI-RS resource, so that the configuration of the multiple CSI-RS resources is avoided, and the configuration complexity and signaling cost are reduced.

Based on the above scheme, the terminal device directly obtains the round robin period according to the first information configured in the CSI-RS resource configuration information, and because the multiple CSI-RS for round robin are regarded as one CSI-RS resource, the configuration of the multiple CSI-RS resources is avoided, the configuration complexity and signaling overhead are reduced, and meanwhile, the first information (round robin period) can be flexibly configured.

Based on the scheme, for N CSI-RSs with the same number of the corresponding ports, the first information received by the terminal equipment is configured in the CSI-RS reporting configuration information, so that signaling overhead can be further reduced.

In one possible embodiment, the method further comprises: and the terminal equipment determines the round robin period according to the total number of ports and the number of ports corresponding to the CSI-RS.

Based on the scheme, for N CSI-RSs with the same number of corresponding ports, the terminal equipment determines the round robin period according to the number of ports required to be measured for CSI measurement configured in the CSI-RS reporting configuration information and the number of ports corresponding to the CSI-RSs, so that the flexibility of the scheme for configuring the round robin period is improved, and meanwhile, the signaling overhead is further reduced.

In one possible implementation manner, the terminal device receives N CSI-RS according to the round robin period, including: the terminal equipment periodically receives N CSI-RSs according to the round robin period.

Based on the scheme, for the periodical CSI-RS, the terminal equipment can receive N CSI-RSs in a periodical mode according to the round robin period, so that the diversity of schemes for receiving the N CSI-RSs is increased.

In one possible implementation manner, the terminal device receives N CSI-RS according to the round robin period, including: the terminal equipment aperiodically receives N CSI-RSs according to the round robin period.

Based on the scheme, for aperiodic CSI-RS, the terminal equipment can receive N CSI-RSs in an aperiodic mode according to the round robin period, so that the diversity of schemes for receiving the N CSI-RSs is increased.

In one possible implementation manner, the first information further includes a time interval, and the terminal device aperiodically receives N CSI-RS according to the round robin period, including: the terminal equipment aperiodically receives N CSI-RSs according to the round period and the time interval, wherein the time interval is the duration between any two adjacent CSI-RSs in the N CSI-RSs.

Based on the scheme, for aperiodic CSI-RS, the terminal device receives N CSI-RS in an aperiodic manner according to the time interval and the round robin period in the first information, which increases the diversity of schemes for receiving N CSI-RS.

In one possible embodiment, the method further comprises: the terminal equipment determines the corresponding relation between N CSI-RSs and ports to be measured in the CSI measurement.

Based on the scheme, the terminal equipment can determine the corresponding relation between N CSI-RSs and the ports to be measured for the CSI measurement according to the protocol convention mode, so that the network equipment and the terminal equipment can jointly determine the corresponding relation according to the protocol convention, information interaction between the network equipment and the terminal equipment is not needed, and signaling overhead is reduced.

In one possible embodiment, the method further comprises: the terminal equipment receives first indication information from the network equipment, wherein the first indication information is used for indicating the corresponding relation between N CSI-RSs and ports, which need to be measured, of the CSI measurement.

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

In a third aspect, there is provided an apparatus for resource allocation, including a unit for performing the method shown in the first aspect, where the apparatus for resource allocation may be a network device, or may be implemented by a chip or a circuit disposed in the network device, and the application is not limited in this regard.

The device for configuring the resources comprises:

The receiving and transmitting unit is used for transmitting first information to the terminal equipment, wherein the first information is used for indicating a round period, and the round period is the number of times N, N is a positive integer, of time N, N is the number of times of transmitting a channel state information reference signal (CSI-RS) when the Channel State Information (CSI) is measured; the network equipment transmits N CSI-RSs according to the round period; the network device receives a measurement report from the terminal device, the measurement report indicating a measurement result of the CSI measurement.

In one possible implementation, the transceiver unit is further configured to periodically send N CSI-RSs according to the round robin period.

In one possible implementation, the transceiver unit is further configured to aperiodically transmit N CSI-RS according to the round robin period.

In a possible implementation manner, the processing unit is configured to determine a time interval, where the time interval is a duration between any two adjacent CSI-RS in the N CSI-RS transmissions, and the first information further includes the time interval; and the receiving and transmitting unit is also used for aperiodically transmitting N CSI-RSs according to the round robin period and the time interval.

In one possible implementation manner, the processing unit is further configured to determine correspondence between N CSI-RSs and ports on which the CSI measurement needs to be measured.

In one 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 a correspondence between N CSI-RSs and ports that need to be measured for CSI measurement.

The explanation and beneficial effects of the device-related content of the resource allocation provided in the third aspect may refer to the method shown in the first aspect, which is not described herein.

In a fourth aspect, there is provided an apparatus for resource allocation, including means for performing the method shown in the second aspect, where the apparatus for resource allocation may be a terminal device, or may be implemented by a chip or a circuit provided in the terminal device, and the application is not limited to this.

The device for configuring the resources comprises:

The receiving and transmitting unit is used for receiving first information from the network equipment, the first information is used for indicating a round period, and the round period is the number of times N, N is a positive integer, of channel state information reference signals (CSI-RS) which need to be transmitted for measuring Channel State Information (CSI); the terminal equipment receives N CSI-RSs according to the round period; the terminal device sends a measurement report to the network device, the measurement report indicating a measurement result of the CSI measurement.

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

In one possible implementation, the transceiver unit is further configured to periodically receive N CSI-RSs according to the round robin period.

In one possible implementation, the transceiver unit is further configured to aperiodically receive N CSI-RSs according to the round robin period.

In one possible embodiment, the first information further includes a time interval; and the receiving and transmitting unit is also used for receiving N CSI-RSs aperiodically according to the round period and the time interval, wherein the time interval is the duration between any two adjacent CSI-RSs in the N CSI-RSs.

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

The explanation and beneficial effects of the device-related content of the resource allocation provided in the fourth aspect may refer to the method shown in the second aspect, which is not described herein.

In a fifth aspect, there is provided a communication apparatus comprising: a memory for storing a program; at least one processor configured to execute a computer program or instructions stored in a memory to perform a method as possible in the first or second aspect.

In one implementation, the apparatus is a network device.

In another implementation, the apparatus is a chip, a system-on-chip, or a circuit for use in a network device.

In a sixth aspect, the present application provides a processor configured to perform the method provided in the above aspects.

The operations such as transmitting and acquiring/receiving, etc. related to the processor may be understood as operations such as outputting and receiving, inputting, etc. by the processor, and may be understood as operations such as transmitting and receiving by the radio frequency circuit and the antenna, if not specifically stated, or if not contradicted by actual function or inherent logic in the related description, which is not limited by the present application.

In a seventh aspect, a computer readable storage medium is provided, the computer readable storage medium storing program code for execution by a device, the program code comprising means for performing a possible implementation of the first or second aspect described above.

In an eighth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the possible implementation of the first or second aspect described above.

In a ninth aspect, a chip is provided, the chip includes a processor and a communication interface, the processor reads instructions stored on a memory through the communication interface, and the method of the possible implementation manner of the first aspect or the second aspect is performed.

Optionally, as an implementation manner, the chip further includes a memory, where a computer program or an instruction is stored in the memory, and the processor is configured to execute the computer program or the instruction stored in the memory, where the processor is configured to execute the method of the possible implementation manner of the first aspect or the second aspect when the computer program or the instruction is executed.

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

Drawings

Fig. 1 shows a schematic diagram of a network architecture of an embodiment of the present application.

Fig. 2 shows a schematic flow chart of a method 200 for resource allocation according to an embodiment of the present application.

Fig. 3 is a schematic diagram illustrating periodic transmission of N CSI-RS according to an embodiment of the present application.

Fig. 4 shows a schematic flow chart of a method 400 for resource allocation according to an embodiment of the present application.

Fig. 5 shows a schematic flow chart of a method 500 for resource allocation according to an embodiment of the present application.

Fig. 6 shows a schematic block diagram of a communication device 600 according to an embodiment of the present application.

Fig. 7 shows a schematic block diagram of another communication apparatus 700 provided by an embodiment of the present application.

Fig. 8 shows a schematic diagram of a chip system 800 according to an embodiment of the application.

Detailed Description

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

The technical scheme provided by the application can be applied to various communication systems, such as: long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) telecommunications system, fifth generation (5th Generation,5G) mobile telecommunications system or new radio access technology (new radio access technology, NR) or future communication system, such as sixth generation (6th generation,6G) telecommunications system, etc. The 5G mobile communication system may include a non-independent networking (non-standalone, NSA) and/or an independent networking (standalone, SA), among others.

The technical scheme provided by the application can be also applied to machine type communication (MACHINE TYPE communication, MTC), inter-machine communication long term evolution (LTE-M), device-to-device (D2D) network, machine-to-machine (machine to machine, M2M) network, internet of things (internet of things, ioT) network or other networks. The IoT network may include, for example, an internet of vehicles. The communication modes in the internet of vehicles system are generally called as vehicle to other devices (V2X, X may represent anything), for example, the V2X may include: vehicle-to-vehicle (vehicle to vehicle, V2V) communication, vehicle-to-infrastructure (vehicle to infrastructure, V2I) communication, vehicle-to-pedestrian communication (vehicle to pedestrian, V2P) or vehicle-to-network (vehicle to network, V2N) communication, etc.

The technical scheme provided by the application can also be applied to future communication systems, such as a sixth generation mobile communication system and the like. The application is not limited in this regard.

In the embodiment of the application, the network device can be any device with a wireless receiving and transmitting function. The apparatus includes, but is not limited to: an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (WIRELESS FIDELITY, wiFi) system, a wireless relay Node, a wireless backhaul Node, a transmission point (transmission point, TP), or a transmission reception point (transmission and reception point, TRP), etc., may also be 5G, e.g., NR, a gNB in a system, or a transmission point (TRP or TP), one or a group (including multiple antenna panels) of base stations in a 5G system, or may also be a network Node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a Distributed Unit (DU), etc.

In some deployments, the gNB may include a centralized unit (centralized unit, CU) and DUs. The gNB may also include an active antenna unit (ACTIVE ANTENNA units, AAU). The CU implements part of the functionality of the gNB and the DU implements part of the functionality of the gNB, e.g. the CU is responsible for handling non-real time protocols and services, implementing radio resource control (radio resource control, RRC), packet data convergence layer protocol (PACKET DATA convergence protocol, PDCP) layer functions. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC) layer, medium access control (medium access control, MAC) layer, and Physical (PHY) layer. The AAU realizes part of physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may be eventually changed into or converted from the information of the PHY layer, under this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by the DU or by the du+aau. It is understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (radio access network, RAN), or may be divided into network devices in a Core Network (CN), which the present application is not limited to.

The network device provides services for the cell, and the terminal device communicates with the cell through transmission resources (e.g., frequency domain resources, or spectrum resources) allocated by the network device, where the cell may belong to a macro base station (e.g., macro eNB or macro gNB, etc.), or may belong to a base station corresponding to a small cell (SMALL CELL), where the small cell may include: urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

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

The terminal device may be a device providing voice/data connectivity to a user, e.g., a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals may be: a mobile phone (mobile phone), a tablet (pad), a computer with wireless transceiver function (such as a notebook, a palm computer, etc.), a mobile internet device (mobile INTERNET DEVICE, MID), a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (SELF DRIVING), a wireless terminal in telemedicine (remote media), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in smart city (SMART CITY), or a future evolution network (public network public land mobile network, etc.).

The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wearing and developing wearable devices by applying a wearable technology, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

The terminal device may also be a terminal device in an internet of things (internet of things, ioT) system. IoT is an important component of future information technology development, and its main technical feature is to connect an item with a network through a communication technology, so as to implement man-machine interconnection and an intelligent network for object interconnection. IoT technology may enable massive connectivity, deep coverage, and terminal power saving through, for example, narrowband (NB) technology.

In addition, the terminal device may further include sensors such as an intelligent printer, a train detector, and a gas station, and the main functions include collecting data (part of the terminal device), receiving control information and downlink data of the network device, and transmitting electromagnetic waves to transmit uplink data to the network device.

For the convenience of understanding the embodiments of the present application, a communication system suitable for the channel measurement method provided in the embodiment of the present application will be described in detail with reference to fig. 1.

Fig. 1 shows a schematic diagram of a communication system 100 suitable for use in the method provided by an embodiment of the application.

As shown in fig. 1, the communication system 100 may include at least one network device, such as network device 101 in the 5G system shown in fig. 1; the communication system 100 may also comprise at least one terminal device, such as the terminal devices 102 to 107 shown in fig. 1. Wherein the terminal devices 102 to 107 may be mobile or stationary. One or more of network device 101 and terminal devices 102-107 may each communicate over a wireless link. Each network device may provide communication coverage for a particular geographic area and may communicate with terminal devices located within 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; as another example, the network device may send downstream data to the terminal device. Thus, the network device 101 and the terminal devices 102 to 107 in fig. 1 constitute one communication system.

Alternatively, the terminal devices may communicate directly with each other. Direct communication between the terminal devices may be achieved, for example, using D2D technology or the like. As shown in the figure, communication may be directly performed between the terminal devices 105 and 106 and between the terminal devices 105 and 107 using D2D technology. Terminal device 106 and terminal device 107 may communicate with terminal device 105 separately or simultaneously.

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

It should be appreciated that fig. 1 illustrates schematically one network device and a plurality of terminal devices, as well as communication links between the communication devices. Alternatively, the communication system 100 may include a plurality of network devices, and the coverage area of each network device may include other numbers of terminal devices, such as more or fewer terminal devices. The application is not limited in this regard.

Each of the above-described communication apparatuses, such as the network apparatus 101 and the terminal apparatuses 102 to 107 in fig. 1, may be configured with a plurality of antennas. The plurality of antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. In addition, each communication device may additionally include a transmitter chain and a receiver chain, each of which may include a plurality of components (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.) associated with the transmission and reception of signals, as will be appreciated by one skilled in the art. Thus, communication between the network device and the terminal device may be via multiple antenna technology.

Optionally, the wireless communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited thereto according to the embodiments of the present application.

In order to facilitate understanding of the embodiments of the present application, the following description will be given for the terms involved in the embodiments of the present application.

1. Channel state information reporting (CSI report):

The channel state information report may also be simply referred to as CSI. In a wireless communication system, information describing channel properties of a communication link is reported by a receiving end (e.g., a terminal device) to a transmitting end (e.g., a network device). The CSI may include, but is not limited to, precoding matrix indicator (precoding matrix indicator, PMI), rank Indicator (RI), channel quality indicator (channel quality indicator, CQI), channel state information reference signal (CHANNEL STATE information REFERENCE SIGNAL, CSI-RS resource indicator (CSI-RS resource indicator, CRI), layer Indicator (LI), etc. it should be understood that the above-listed specific details of CSI are only exemplary and should not constitute any limitation of the present application.

Taking the example that the terminal equipment reports the CSI to the network equipment. The terminal device may report one or more CSI in a time unit (e.g., slot), where each CSI may correspond to a configuration condition for reporting CSI. The CSI reporting configuration condition may be determined by, for example, higher layer signaling such as an information element (information element, IE) in a Radio Resource Control (RRC) message, CSI-reporting configuration (CSI-reporting configuration). The CSI reporting configuration may be used to indicate time domain behavior, bandwidth, format corresponding to reporting quality (reporting quality), etc. of CSI reporting. The time domain behaviors include periodicity (periodic), semi-persistent (semi-persistent), and aperiodic (aperiodic), for example. The terminal device may generate a CSI based on a CSI reporting configuration.

2. Channel reciprocity:

In time division duplex (time division duplexing, TDD) mode, the uplink and downlink channels transmit signals on different time domain resources on the same frequency domain resource. The channel fading experienced by the signals on the uplink and downlink channels can be considered the same within a relatively short time (e.g., the coherence time of the channel propagation). This is the reciprocity of the uplink and downlink channels. Based on reciprocity of the uplink and downlink channels, the network device may measure the uplink channel according to an uplink reference signal, such as a Sounding REFERENCE SIGNAL (SRS), and may estimate the downlink channel according to the uplink channel, so that a precoding matrix for downlink transmission may be determined.

The uplink and downlink channels in the frequency division duplex (frequency division duplexing, FDD) mode have partial reciprocity, for example, angle reciprocity and delay reciprocity, in other words, delay and angle uplink and downlink channels in the FDD mode have reciprocity. Thus, the angle and the time delay may also be referred to as reciprocity parameters.

Since signals may travel multiple paths from the transmit antenna to the receive antenna as they travel through the wireless channel. Multipath delays cause frequency selective fading, i.e., variations in the frequency domain channel. The time delay is the transmission time of the wireless signal on different transmission paths, and is determined by the distance and the speed, and has no relation with the frequency domain of the wireless signal. When signals are transmitted on different transmission paths, different transmission delays exist due to different distances. Thus, the uplink and downlink channels with delay in FDD mode may be considered the same, or reciprocal.

3. Precoding technology: the network device can process the signal to be transmitted by means of the precoding matrix matched with the channel resource under the condition that the channel state is known, so that the precoded signal to be transmitted is matched with the channel, and the receiving device can better receive the transmitted signal. Thus, by precoding the signal to be transmitted, the received signal quality (e.g., signal-to-interference plus noise ratio (signal to interference plus noise ratio, SINR), etc.) is improved. Therefore, by adopting the precoding technology, the transmission of the sending device and the plurality of receiving devices on the same time-frequency resource can be realized, namely, the multi-user multiple-input multiple-output (multiple user multiple input multiple output, MU-MIMO) is realized.

It should be noted that the description of the precoding technology is merely exemplary for easy understanding, and is not intended to limit the protection scope of the embodiments of the present application. In a specific implementation process, the sending device may also perform precoding in other manners. For example, when channel information (such as, but not limited to, a channel matrix) cannot be known, precoding is performed using a pre-set precoding matrix or a weighting method. For brevity, the details thereof are not described in detail herein.

4. Reference signal (REFERENCE SIGNAL, RS):

The RS may also be referred to as pilot (pilot), reference sequence, etc. In the 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 (CHANNEL STATE information REFERENCE SIGNAL, CSI-RS) for downlink channel measurement, or may be a Sounding REFERENCE SIGNAL (SRS) for uplink channel measurement. It should be understood that the above listed reference signals are merely examples and should not be construed as limiting the application in any way. The application does not exclude the possibility of defining other reference signals in future protocols to achieve the same or similar functionality.

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

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

The CSI-RS may be classified into the following three CSI-RS according to their transmission behavior in the time domain:

(1) Periodic CSI-RS:

For periodic CSI-RS, the network device may configure it with one transmission period, e.g., CSI-RS may repeat every minimum of 4 slots, and a maximum of 640 slots.

(2) Semi-static CSI-RS:

For semi-static CSI-RS, the network device will also configure a transmission period, but the specific transmission depends on the explicit activation of the MAC control element, which upon activation will continue to periodically transmit until an explicit deactivation command is received to stop transmitting.

(3) Aperiodic CSI-RS:

for aperiodic CSI-RS, the network device does not configure a transmission period for it, but explicitly signals each CSI-RS transmission.

5. Port (port):

A port may be understood as a virtual antenna that is identified by a receiving device. In the embodiment of the present application, the ports may refer to a reference signal transmitting port and a transmitting antenna port, for example, the reference signal of each port may be a reference signal that is not precoded, or may be a precoded reference signal obtained by precoding a reference signal based on at least one delay vector; the ports may also refer to reference signal ports after beamforming, for example, a reference signal corresponding to each port may be a precoded reference signal obtained by precoding a reference signal based on an angle vector, or may be a precoded reference signal obtained by precoding a reference signal based on an angle vector and a delay vector. The signal for each port may be transmitted through one or more Resource Blocks (RBs).

The transmit antenna port may be referred to as an actual independent transmit unit (TRANSCEIVER UNIT, txRU). It will be appreciated that if the reference signal is spatially precoded, 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 reference is made to transmit antenna ports, it may refer to the number of ports that are not spatially precoded. I.e. the actual number of independent transmission units. Where ports are referred to, in different embodiments, they may be referred to as transmit antenna ports or reference signal ports. The particular meaning expressed by a port may be determined according to particular embodiments.

6. Reference signal resources:

The reference signal resource may be used to configure transmission properties of the reference signal, such as time-frequency resource location, port mapping relation, power factor, scrambling code, etc., and reference may be made to the prior art. The transmitting end device may transmit reference signals based on the reference signal resources, and the receiving end device may receive reference signals based on the reference signal resources. One reference signal resource may 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 will be appreciated that the term "and/or" is merely one association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The terms related to the present application are briefly described above, and will not be repeated in the following examples. The communication method provided by the embodiment of the application will be described in detail below with reference to the accompanying drawings. The embodiment provided by the application can be applied to the network architecture shown in fig. 1, and is not limited.

In addition, ordinal terms such as "first," "second," and the like in the embodiments of the present application are used for distinguishing a plurality of objects, and are not used to limit the size, content, order, timing, priority, importance, and the like of the plurality of objects. For example, the first threshold value and the second threshold value may be the same threshold value or different threshold values, and the names do not indicate the difference in the values of the two threshold values, the corresponding parameters, the priorities, the importance, or the like.

In the embodiments of the present application, the number of nouns, unless otherwise indicated, means "a singular noun or a plural noun", i.e. "one or more". "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. For example, A/B, means: a or B. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c, represents: a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b, c may be single or plural.

With the increase of the antenna scale, the base station needs more channel state information reference signal (CHANNEL STATE information-REFERENCE SIGNAL, CSI-RS) ports to measure all antenna ports, and as the number of ports which can be measured by each CSI-RS is limited, according to the current protocol, multiple sets of CSI-RS resources need to be configured for channel measurement to finish channel measurement of all antenna ports, and the larger the antenna scale, the more sets of CSI-RS resources need to be configured, the more complex the configuration and the signaling overhead are.

Illustratively, at present, in the NR protocol, the CSI-RS supports at most 32 ports. If 256 antenna ports need to be measured, 8 sets of CSI-RS resources need to be configured for measurement of all the antenna ports, so that the configuration complexity is high and the signaling overhead is high.

The application provides a resource allocation method, which avoids allocation of a plurality of CSI-RS resources and reduces allocation complexity and signaling cost by measuring all antenna ports once in a round robin mode for a plurality of CSI-RSs.

It should be understood that the following details of the method provided by the embodiment of the present application are given only for easy understanding and explanation, taking the interaction between the terminal device and the network device as an example. This should not be construed as limiting the subject matter of the implementation of the method provided by the present application. For example, the terminal device shown in the following embodiments may be replaced with a component (such as a chip or a chip system) or the like configured in the terminal device. The network devices shown in the following embodiments may also be replaced with components (such as chips or chip systems) or the like configured in the network devices.

The embodiments shown below are not particularly limited to the specific structure of the execution body of the method provided by the embodiment of the present application, as long as communication can be performed in the method provided according to the embodiment of the present application by running a program recorded with the code of the method provided by the embodiment of the present application, and for example, the execution body of the method provided by the embodiment 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 the program and execute the program.

Fig. 2 is a schematic flow chart of a method 200 for resource allocation according to an embodiment of the present application. The method 200 includes the following steps.

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

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

The first information is used for indicating a round robin period, wherein the round robin period is the number of times N, N being a positive integer, of channel state information reference signals (CSI-RS) which need to be sent for measuring Channel State Information (CSI).

It should be understood that the number of times the CSI-RS needs to be transmitted for the CSI measurement, N, may be understood as the number of times the same CSI-RS needs to be transmitted for the present CSI measurement.

In one possible implementation, the round robin period is determined according to the number of ports that the CSI measurement needs to measure and the number of ports that the CSI-RS corresponds to.

For example, the number of ports to be measured in the CSI measurement is 256, and the measurement of the 256 ports is achieved by configuring 1 CSI-RS, and the number of ports corresponding to the CSI-RS is 32, then the round robin period is that the number of ports to be measured in the CSI measurement divided by the number of ports corresponding to the CSI-RS is 8, that is, the number of times that the CSI-RS need to be transmitted in the CSI measurement is 8, or the CSI-RS corresponding to the 32 ports need to be transmitted in the CSI measurement.

In one possible implementation, the first information includes a round robin period, and the first information is carried in CSI-RS resource allocation information.

It should be understood that the first information includes a round robin period, and that the first information is carried in the CSI-RS resource configuration information may be understood as that the network device configures the round robin period in the CSI-RS resource configuration information.

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

In one 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 that the first information is carried in the CSI reporting configuration information may be understood that 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, when the network device configures the total number of ports in the CSI report configuration information, at this time, the number of ports corresponding to N CSI-RSs that need to be sent in CSI measurement needs to be the same. In other words, for the present CSI measurement, N CSI-RSs with the same number of ports are required to be transmitted. For example, the CSI measurement needs to send 8 CSI-RS, and the number of ports corresponding to the 8 CSI-RS is 32, that is, the ports corresponding to the 8 CSI-RS are 32. Based on the above, the round robin period can be determined according to the total number of ports and the number of ports corresponding to the CSI-RS.

It should be noted that the above configuration manner of the first information is merely an example, and the present application is not limited thereto.

S220, the network equipment sends N CSI-RSs according to the round robin period.

Correspondingly, the terminal equipment receives N CSI-RSs according to the round robin period.

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

For example, when the round robin period is 8, that is, the number of times that the CSI-RS needs to be transmitted in the present CSI measurement is 8, the network device transmits 8 CSI-RS to the terminal device in a round robin manner.

In one possible implementation, the network device periodically transmits N CSI-RSs according to a round robin period.

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

For example, as shown in fig. 3, for a periodic CSI-RS, the period is 5ms, the number of ports required to be measured in the CSI measurement is 256 ports, the number of ports corresponding to the CSI-RS is 32 ports, and the round robin period is 8, the network device sends the CSI-RS in the period of 5ms, where 8 continuous CSI-RS correspond to 256 ports required to be measured in the CSI measurement.

In one possible implementation, the network device aperiodically transmits the N CSI-RSs according to a round robin period.

Specifically, for aperiodic CSI-RS, the network device sends N CSI-RS to the terminal device in an aperiodic manner according to the round robin period.

For aperiodic CSI-RS, the number of times of transmission of CSI-RS indicated by the network device is a round robin period, for example, for the present CSI measurement, the number of times of transmission of CSI-RS indicated by the network device by signaling is 8, that is, the round robin period is 8, and then the network device sends 8 CSI-RS to the terminal device according to the round robin period aperiodically, or the number of times that the present CSI measurement network device needs to send CSI-RS corresponding to 32 ports to the terminal device is 8.

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

The time interval is a duration between any two adjacent CSI-RSs in the 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 may be different, which is not limited by the present application, so the number of time intervals determined by the network device is not limited by the present application, for example, when the duration between any two adjacent CSI-RS is the same, the network device determines a time interval; when the duration between any two adjacent CSI-RSs is completely different, the network device determines N-1 time intervals, and so on.

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

Optionally, after the network device determines the time interval, the time interval is carried in the first information and sent to the terminal device.

For aperiodic CSI-RS, the number of times of transmission of CSI-RS indicated by the network device is a round robin period, for example, for this CSI measurement, the number of times of transmission of CSI-RS indicated by the network device by signaling is 8, i.e., the round robin period is 8. The time interval between any two adjacent CSI-RSs determined by the network equipment is 5ms, the network equipment sends 8 CSI-RSs to the terminal equipment according to the polling period aperiodicity, wherein each sending interval is 5ms, or the number of times that the network equipment needs to send the CSI-RSs corresponding to 32 ports to the terminal equipment is 8, and each sending interval is 5ms.

It should be noted that, the manner in which the network device sends N CSI-RSs according to the round robin period is merely an example, which is not limited by the present application.

And S230, the terminal equipment sends a measurement report to the network equipment.

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

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

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

It should be understood that, the terminal device measuring the ports corresponding to the N CSI-RSs may be understood that, for the present CSI measurement, the terminal device performs measurement on all ports corresponding to the N CSI-RSs, thereby completing one CSI measurement.

Based on the scheme, the network equipment configures the first information for indicating the round robin period in various modes and sends the first information to the terminal equipment, and the terminal equipment measures all antenna ports in a round robin mode for multiple CSI-RSs received from the network equipment according to the first information, namely, the multiple CSI-RSs in the round robin are regarded as one CSI-RS resource, so that the configuration of the multiple CSI-RS resources is avoided, and the configuration complexity and signaling cost are reduced.

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 a round robin period according to the total number of ports, and the method 200 may further include:

s240, the terminal equipment determines the round robin period according to the total number of ports and the number of ports corresponding to the CSI-RS.

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

For example, the total number of ports is 256, that is, the number of ports to be measured in the CSI measurement is 256, and the number of ports corresponding to one CSI-RS is 32, then the terminal device determines that the round robin period is 8 according to the total number of ports and the number of ports corresponding to the CSI-RS, that is, the round robin period is the number of ports divided by the number of ports corresponding to the CSI-RS always to be 8.

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

s250, determining the corresponding relation between N CSI-RSs and the ports to be measured in the CSI measurement.

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

It should be noted that, ports to be measured in the present CSI measurement corresponding to the N CSI-RSs are different from each other.

For example, the ports required to be measured in the CSI measurement are 256 ports, and N is 8, and the corresponding relations between the N CSI-RSs and the ports required to be measured in the CSI measurement are respectively: the first CSI-RS corresponds to the 1 st to 32 nd ports, the second CSI-RS corresponds to the 33 rd to 64 th ports, the third CSI-RS corresponds to the 65 th to 96 th ports, the fourth CSI-RS corresponds to the 97 th to 128 th ports, the fifth CSI-RS corresponds to the 129 th to 160 th ports, the sixth CSI-RS corresponds to the 161 th to 192 th ports, the seventh CSI-RS corresponds to the 193 rd to 224 th ports, and the eighth CSI-RS corresponds to the 225 th to 256 th ports.

In one possible implementation manner, the network device and the terminal device determine the correspondence between the N CSI-RSs and the ports on which CSI measurements need to be measured.

Specifically, the network device and the terminal device determine the corresponding relation between the N CSI-RSs and the ports to be measured for CSI measurement according to a protocol agreed mode.

In one possible implementation manner, the network device sends, to the terminal device in an indicating manner, the correspondence between the N CSI-RSs and ports on which CSI measurements need to be measured.

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

It should be appreciated that, for periodic CSI-RS, semi-static CSI-RS, and aperiodic CSI-RS, the manner in which they determine the correspondence of the N CSI-RS to the ports that need to be measured for the present CSI measurement is different.

Case one: for periodic CSI-RS or semi-static CSI-RS, the corresponding relation between N CSI-RS and the port to be measured in the CSI measurement can be determined according to the transmission time of the N CSI-RS or scrambling code identification (scramble identity document, scramble ID) of the N CSI-RS.

In one possible implementation manner, the corresponding relation between the N CSI-RSs and the port to be measured in the CSI measurement is determined according to the sending time of the N CSI-RSs.

Specifically, in signaling configuration or protocol, the port corresponding to each CSI-RS at the transmission time of N CSI-RS is agreed, that is, the transmission time of N CSI-RS determines the correspondence between N CSI-RS and the port to be measured in this CSI measurement, for example, according to the existing protocol, the transmission time of periodic CSI-RS or semi-static CSI-RS is given by the following formula:

Wherein, Represents the number of slots in a frame, n _f represents the system frame number (SYSTEM FRAME number, SFN),/>Representing the index of the slot in the frame, T _offset representing the slot offset in one period, T _CSI-RS representing the period of the CSI-RS, then the frame number n _f and the intra-frame position/>, can be passedAnd corresponding to the port to be measured in the CSI measurement.

In one possible implementation manner, the corresponding relation between the N CSI-RSs and the port to be measured in the CSI measurement is determined according to the scrambling code identity of the N CSI-RSs.

Specifically, scrambling code identities are required to be configured when the CSI-RS pilot sequence is generated, the sequence correlation corresponding to different scrambling code identities is low, and different scrambling code identities can be configured for the sequences of the CSI-RSs at different sending moments in a protocol specified or signaling configuration mode, so that the corresponding relation between N CSI-RSs and ports required to be measured in the CSI measurement can be determined.

And a second case: for aperiodic CSI-RS, the corresponding relation between the N CSI-RSs and the port to be measured in the CSI measurement can be determined through the transmission sequence of the N CSI-RSs or the scrambling code identification of the N CSI-RSs.

In one possible implementation manner, the transmission sequence of the N CSI-RS is configured in a manner specified by a protocol or configured by signaling, that is, the correspondence between the N CSI-RS and the port to be measured in the CSI measurement.

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

Fig. 4 is a schematic flow chart of a method 400 of resource allocation provided by an embodiment of the present application.

S410, determining first information.

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

The round robin period is the number of times N of CSI-RS transmission required for CSI measurement, wherein N is a positive integer.

The first information comprises a round robin period and is carried in the CSI-RS resource configuration information.

Specifically, the network device determines a round robin period according to the number of ports to be measured in CSI measurement and the number of ports corresponding to CSI-RS, where the first information includes the round robin period, and configures the round robin period in CSI-RS resource configuration information.

For example, the number of ports to be measured in the CSI measurement is 256, and the measurement of the 256 ports is achieved by configuring 1 CSI-RS, and the number of ports corresponding to the CSI-RS is 32, then the round robin period is that the number of ports to be measured in the CSI measurement divided by the number of ports corresponding to the CSI-RS is 8, that is, the number of times that the CSI-RS need to be transmitted in the CSI measurement is 8, or the CSI-RS corresponding to the 32 ports need to be transmitted in the CSI measurement. The network device configures the round robin period in the CSI-RS resource configuration information.

It should be noted that, the description of the first information may refer to the related description in S210, and detailed description thereof is omitted here for avoiding redundancy.

It should be noted that the above manner of determining the first information is merely an example, and the present application is not limited thereto.

S420, the network device sends the first information to the terminal device.

And S430, the network equipment transmits N CSI-RSs according to the round robin period.

Note that, the process of S430 is similar to the process of S220, and detailed description thereof is omitted here to avoid redundancy.

S440, determining the corresponding relation between N CSI-RSs and the ports to be measured in the CSI measurement.

It should be understood that, for the present CSI measurement, the network device and the terminal device also need to determine the correspondence between N CSI-RSs and ports that need to be measured for the present CSI measurement, so that the terminal device may complete CSI measurement according to the corresponding port sequence.

It should be understood that, for the periodic CSI-RS, the semi-static CSI-RS, and the aperiodic CSI-RS, the manner of determining the correspondence between the N CSI-RS and the port to be measured in the CSI measurement is different, and the specific determination manner may refer to the related description in S250.

Note that, the process of S440 is similar to the process of S250, and detailed description thereof is omitted here for avoiding redundant description.

S450, the terminal equipment measures the ports corresponding to the N CSI-RSs.

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

It should be understood that, when the terminal device performs measurement on the ports corresponding to the N CSI-RSs, it may be understood that, for the present CSI measurement, the terminal device performs measurement on all ports corresponding to the N identical CSI-RSs, thereby completing one CSI measurement.

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

Specifically, after the terminal device completes the CSI measurement, the measurement result of the CSI measurement is carried in a measurement report and sent to the network device.

Based on the scheme, the network equipment sends the first information for indicating the round robin period to the terminal equipment, and the terminal equipment measures all antenna ports in a round robin mode for multiple CSI-RSs received from the network equipment according to the first information, namely, the multiple CSI-RSs in the round robin are regarded as one CSI-RS resource, so that the configuration of the multiple CSI-RS resources is avoided, and the configuration complexity and signaling overhead are reduced.

Fig. 5 is a schematic flow chart diagram of a method 500 of resource configuration provided by an embodiment of the present application.

S510, determining first information.

The first information comprises the total number of ports, the total number of ports is the number of ports to be measured in the CSI measurement, and the first information is loaded in the CSI reporting configuration information.

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

For example, the number of ports to be measured in the CSI measurement is 256, 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, when the network device configures the total number of ports in the CSI reporting configuration information, at this time, the number of ports corresponding to N CSI-RSs that need to be transmitted in CSI measurement needs to be the same, in other words, for the present CSI measurement, the number of CSI-RSs that need to be transmitted with the same number of N corresponding ports needs to be transmitted. For example, the CSI measurement needs to send 8 CSI-RS, and the number of ports corresponding to the 8 CSI-RS is 32, that is, the ports corresponding to the 8 CSI-RS are 32.

S520, the network device sends the first information to the terminal device.

And S530, the terminal equipment determines a round robin 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 by the network device, the first information includes the total number of ports, and the terminal device determines a round robin period according to the total number of ports and the number of ports corresponding to the CSI-RS.

Note that, the process of S530 is similar to the process of S240, and detailed description thereof is omitted here to avoid redundancy.

S540, the network device determines a time interval.

The time interval is a duration between any two adjacent CSI-RSs in the N CSI-RSs, and is used for transmitting the N CSI-RSs in an aperiodic mode.

Note that the process of S540 is similar to the process of S221, and detailed description thereof is omitted here to avoid redundancy.

It should be noted that the execution sequence of S530 and S540 is not limited in the present application, for example, S530 and S540 may be executed simultaneously; s530 may also be performed first, and S540 may be performed later; s540 may also be performed first, S530 may be performed later, and so on.

And S550, the network equipment transmits N CSI-RSs according to the round robin period.

Illustratively, the network device aperiodically transmits the N CSI-RSs according to the round robin period and the time interval.

Note that, the process of S550 is similar to the process of S220, and detailed description thereof is omitted here for avoiding redundant description.

S560, corresponding relations between N CSI-RSs and ports to be measured in the CSI measurement are determined.

Note that, the process of S560 is similar to the process of S250, and detailed description thereof is omitted here for avoiding redundant description.

S570, the terminal equipment performs measurement on the ports corresponding to the N CSI-RSs.

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

Based on the scheme, for N CSI-RSs with the same number of corresponding ports, the network equipment sends first information for indicating the round robin period to the terminal equipment, and the terminal equipment measures all antenna ports in a round robin mode by receiving multiple CSI-RSs from the network equipment according to the first information, namely, the multiple CSI-RSs in the round robin are regarded as one CSI-RS resource, so that the configuration of the multiple CSI-RS resources is avoided. Meanwhile, the number of ports corresponding to the N CSI-RSs is the same, so that the total number of ports required to be measured for CSI measurement is only configured in the CSI reporting configuration information, and the signaling overhead is further reduced.

It will be appreciated that the examples of fig. 2-5 in the embodiments of the present application are merely for 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. It will be apparent to those skilled in the art from the examples of fig. 2-5 that various equivalent modifications or variations may be made, and such modifications or variations are intended to be within the scope of the embodiments of the present application.

It will also be appreciated that some optional features of the various embodiments of the application may, in some circumstances, be independent of other features or may, in some circumstances, be combined with other features, without limitation.

It is also to be understood that the aspects of the embodiments of the application may be used in any reasonable combination, and that the explanation or illustration of the various terms presented in the embodiments may be referred to or explained in the various embodiments without limitation.

It should be further understood that the magnitude of the various numerical numbers in the embodiments of the present application does not mean the order of execution, but merely serves to distinguish between the convenience of description and the implementation of the embodiments of the present application, and should not constitute any limitation.

It should be further understood that, in the embodiments of the present application, some message names, such as first information, etc., are referred to, and it should be understood that the naming thereof does not limit the protection scope of the embodiments of the present application.

It should also be understood that, in the foregoing embodiments of the methods and operations implemented by the terminal device, the methods and operations may also be implemented by component parts (e.g., chips or circuits) of the terminal device; furthermore, the methods and operations implemented by the network device may also be implemented by, but not limited to, constituent components (e.g., chips or circuits) of the network device. Corresponding to the methods given by the above method embodiments, the embodiments of the present application also provide corresponding apparatuses, where the apparatuses include corresponding modules for executing the above method embodiments. The module may be software, hardware, or a combination of software and hardware. It will be appreciated that the technical features described in the method embodiments described above are equally applicable to the device embodiments described below.

It should be understood that the network device or the terminal device may perform some or all of the steps in the above embodiments, which are only examples, and that the embodiments of the present application may also perform other operations or variations of the various operations. Furthermore, the various steps may be performed in a different order presented in the above embodiments, and it is possible that not all of the operations in the above embodiments are performed.

The method of communication provided by the embodiment of the present application is described in detail above with reference to fig. 2 to 5, and the communication device provided by the embodiment of the present application is described in detail below with reference to fig. 6 to 8. It should be understood that the descriptions of the apparatus embodiments and the descriptions of the method embodiments correspond to each other, and thus, descriptions of details not shown may be referred to the above method embodiments, and for the sake of brevity, some parts of the descriptions are omitted.

Fig. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application. The apparatus 600 comprises a transceiver unit 610, the transceiver unit 610 being operable to implement corresponding communication functions. The transceiver unit 610 may also be referred to as a communication interface or a communication unit.

Optionally, the apparatus 600 may further comprise a processing unit 620, where the processing unit 620 may be configured to perform data processing.

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

The apparatus 600 may be configured to perform the actions performed by the network device or the terminal device in the above method embodiments, where the apparatus 600 may be the network device or the terminal device, or a component of the network device or the terminal device, the transceiver unit 610 is configured to perform operations related to the transceiver of the network device or the terminal device in the above method embodiments, and the processing unit 720 is configured to perform operations related to the processing of the network device or the terminal device in the above method embodiments.

It should also be appreciated that the apparatus 600 herein is embodied in the form of functional units. The term "unit" herein may refer to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 600 may be specifically configured to be a network device or a terminal device in the foregoing embodiments of the method and may be used to perform each flow and/or step corresponding to the network device or the terminal device in the foregoing embodiments of the method, or the apparatus 600 may be specifically configured to be a network device or a terminal device in the foregoing embodiments of the method and may be used to perform each flow and/or step corresponding to the network device or the terminal device in the foregoing embodiments of the method and are not repeated herein.

The apparatus 600 of each of the above aspects has a function of implementing the corresponding step performed by the network device or the terminal device in the above method, or the apparatus 600 of each of the above aspects has a function of implementing the corresponding step performed by the network device or the terminal device in the above method. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions; for example, the transceiver unit may be replaced by a transceiver (e.g., a transmitting unit in the transceiver unit may be replaced by a transmitter, a receiving unit in the transceiver unit may be replaced by a receiver), and other units, such as a processing unit, etc., may be replaced by a processor, to perform the transceiver operations and related processing operations in the various method embodiments, respectively.

The transceiver unit 610 may be a transceiver circuit (e.g., may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.

It should be noted that the apparatus in fig. 6 may be a network element or a device in the foregoing embodiment, or may be a chip or a chip system, for example: system on chip (SoC). The receiving and transmitting unit can be an input and output circuit and a communication interface; the processing unit is an integrated processor or microprocessor or integrated circuit on the chip. And are not limited herein.

As shown in fig. 7, an embodiment of the present application provides another communication device 700. The apparatus 700 comprises a processor 710, the processor 710 being coupled to a memory 720, the memory 720 being for storing computer programs or instructions and/or data, the processor 710 being for executing the computer programs or instructions stored by the memory 720 or for reading the data stored by the memory 720 for performing the methods in the method embodiments above.

Optionally, the processor 710 is one or more.

Optionally, memory 720 is one or more.

Alternatively, the memory 720 may be integrated with the processor 710 or provided separately.

Optionally, as shown in fig. 7, the apparatus 700 further comprises a transceiver 730, the transceiver 730 being used for receiving and/or transmitting signals. For example, the processor 710 is configured to control the transceiver 730 to receive and/or transmit signals.

As an aspect, the apparatus 700 is configured to implement the operations performed by the network device or the terminal device in the above method embodiments.

For example, the processor 710 is configured to execute computer programs or instructions stored in the memory 720 to implement the relevant operations of the terminal device in the above respective method embodiments. For example, the terminal device in any of the embodiments shown in fig. 2 to 5, or the method of the terminal device in any of the embodiments shown in fig. 2 to 5.

It should be appreciated that the processor referred to in the embodiments of the present application may be a central processing unit (central processing unit, CPU), but may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (field programmable GATE ARRAY, FPGAs) 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 be any conventional processor or the like.

It should also be understood that the memory referred to in embodiments of the present application may be volatile memory and/or nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM), an electrically erasable programmable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM). For example, RAM may be used as an external cache. By way of example, and not limitation, RAM includes the following forms: static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM) and direct memory bus random access memory (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 components, the memory (storage module) may be integrated into the processor.

It should also be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Referring to fig. 8, an embodiment of the present application provides a chip system 800. The system-on-chip 800 (or may also be referred to as a processing system) includes logic 810 and an input/output interface 820.

Logic 810 may be, among other things, processing circuitry in system on chip 800. Logic 810 may be coupled to the memory unit and invoke instructions in the memory unit so that system-on-chip 800 can implement the methods and functions of embodiments of the present application. The input/output interface 820 may be an input/output circuit in the chip system 800, and outputs information processed by the chip system 800, or inputs data or signaling information to be processed into the chip system 800 for processing.

As an aspect, the chip system 800 is configured to implement the operations performed by the network device or the terminal device in the above method embodiments.

For example, the logic 810 is configured to implement the operations related to processing by a terminal device in the above method embodiment, such as the operations related to processing by a terminal device in the embodiment shown in any one of fig. 2 to 5; the input/output interface 820 is used to implement the above operations related to transmission and/or reception by a terminal device in the method embodiment, such as the operations related to transmission and/or reception performed by the terminal device in the embodiment shown in any one of fig. 2 to 5.

The embodiments of the present application also provide a computer readable storage medium having stored thereon computer instructions for implementing the method performed by the network device or the terminal device in the above method embodiments.

For example, the computer program when executed by a computer, enables the computer to implement the method performed by the network device or the terminal device in the embodiments of the method described above.

The embodiment of the application also provides a computer program product, which contains instructions, and the instructions are executed by a computer to realize the method executed by the network device or the terminal device in the above method embodiments.

The explanation and beneficial effects of the related content in any of the above-mentioned devices can refer to the corresponding method embodiments provided above, and are not repeated here.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Furthermore, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. For example, the computer may be a personal computer, a server, or a network device, etc. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). 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, data center, etc. that contains an integration of one or more available media. For example, the aforementioned usable media include, but are not limited to, U disk, removable hard disk, read-only memory (ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and the like.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of resource allocation, comprising:

the network equipment sends first information to the terminal equipment, wherein the first information is used for indicating a round robin period, and the round robin period is the number of times N, N being a positive integer, of channel state information reference signals (CSI-RS) required to be sent for measuring Channel State Information (CSI);

the network equipment sends N CSI-RSs according to the round robin period;

the network device receives a measurement report from the terminal device, the measurement report indicating a measurement result of the CSI measurement.

2. The method of claim 1, wherein the first information comprises the round robin period, the first information being carried in CSI-RS resource configuration information.

3. The method of claim 1, wherein the first information includes a total number of ports, the total number of ports being a number of ports that need to be measured for the CSI measurement, the first information is carried in CSI reporting configuration information, and the number of ports corresponding to the N CSI-RSs is the same.

4. A method according to any one of claims 1 to 3, wherein the round robin period is determined according to the number of ports that the CSI measurement needs to measure and the number of ports to which the CSI-RS corresponds.

5. The method according to any one of claims 1 to 4, wherein the network device transmitting N CSI-RS according to the round robin period comprises:

and the network equipment periodically transmits N CSI-RSs according to the round robin period.

6. The method according to any one of claims 1 to 4, wherein the network device transmitting N CSI-RS according to the round robin period comprises:

and the network equipment aperiodically transmits N CSI-RSs according to the round robin period.

7. The method of claim 6, wherein the method further comprises:

The network equipment determines a time interval, wherein the time interval is the duration between any two adjacent CSI-RSs in N CSI-RSs, and the first information further comprises the time interval;

The network device aperiodically transmits N CSI-RSs according to the round robin period, including:

And the network equipment aperiodically transmits N CSI-RSs according to the round robin period and the time interval.

8. The method according to any one of claims 1 to 7, further comprising:

And the network equipment determines the corresponding relation between N CSI-RSs and ports to be measured for the CSI measurement.

9. The method according to any one of claims 1 to 7, further comprising:

The network device sends first indication information to the terminal device, wherein the first indication information is used for indicating the corresponding relation between N CSI-RSs and ports to be measured for CSI measurement.

10. The method according to claim 8 or 9, wherein the correspondence is determined according to transmission time instants of the N CSI-RS or scrambling identity of the N CSI-RS.

11. A method of resource allocation, comprising:

The method comprises the steps that a terminal device receives first information from a network device, wherein the first information is used for indicating a round robin period, and the round robin period is the number of times N, N is a positive integer, of channel state information reference signals (CSI-RS) which are required to be sent for measuring Channel State Information (CSI);

The terminal equipment receives N CSI-RSs according to the round robin period;

and the terminal equipment sends a measurement report to the network equipment, wherein the measurement report is used for indicating the measurement result of the CSI measurement.

12. The method of claim 11, wherein the first information comprises the round robin period, the first information being carried in CSI-RS resource configuration information.

13. The method of claim 11, wherein the first information includes a total number of ports, the total number of ports being a number of ports that need to be measured for the CSI measurement, the first information is carried in CSI reporting configuration information, and the number of ports corresponding to the N CSI-RSs is the same.

14. The method of claim 13, wherein the method further comprises:

And the terminal equipment determines the round robin period according to the total number of ports and the number of ports corresponding to the CSI-RS.

15. The method according to any of claims 11 to 14, wherein the terminal device receives N CSI-RS according to the round robin period, comprising:

and the terminal equipment periodically receives N CSI-RSs according to the round robin period.

16. The method according to any of claims 11 to 14, wherein the terminal device receives N CSI-RS according to the round robin period, comprising:

and the terminal equipment aperiodically receives N CSI-RSs according to the round robin period.

17. The method of claim 16, wherein the first information further comprises a time interval, wherein the terminal device aperiodically receives the N CSI-RS according to the round robin period, comprising:

and the terminal equipment aperiodically receives N CSI-RSs according to the round robin period and the time interval, wherein the time interval is the duration between any two adjacent CSI-RSs in the N CSI-RSs.

18. The method according to any one of claims 11 to 17, further comprising:

And the terminal equipment determines the corresponding relation between N CSI-RSs and ports to be measured for the CSI measurement.

19. The method according to any one of claims 11 to 17, further comprising:

The terminal equipment receives first indication information from the network equipment, wherein the first indication information is used for indicating the corresponding relation between N CSI-RSs and ports which need to be measured in the CSI measurement.

20. The method according to claim 18 or 19, wherein the correspondence is determined according to transmission time instants of the N CSI-RS or scrambling identity of the N CSI-RS.

21. A communication device, comprising:

a processor for executing a computer program stored in a memory to cause the communication device to perform the method of any one of claims 1 to 20.

22. A computer-readable storage medium, having stored thereon a computer program or instructions, which, when executed by a processor, cause the method according to any of claims 1 to 20 to be performed.

23. A computer program product comprising instructions which, when run on a computer, cause the method of any one of claims 1 to 20 to be performed.

24. A chip system, comprising: a processor for invoking and running computer programs or instructions from memory to cause a communication device in which the system-on-chip is installed to implement the method of any of claims 1-20.