Communication method and device

Abstract

Provided are a communication method and device, relating to the technical field of communications, a network device determining first indication information, the first indication information being used for indicating configuration information of a first reference signal corresponding to a first beam and first antenna port number information corresponding to the first beam; a network device broadcasts first indication information, and a terminal receives the first indication information broadcasted by the network device and determines a first reference signal according to the first indication information. The reference signal configuration information and the antenna port number information indicated by the application are beam-level, and are not separately indicated for each terminal, so that the indication overhead of signaling can be reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular, to a communication method and device. Background Art

[0002] The fifth generation mobile communication (5th generation, 5G) new radio NR standard defines reference signals for downlink channel state measurement, such as demodulation reference signal (DMRS), channel state information-reference signal (CSI-RS) and phase tracking reference signal (PTRS). The configuration information of these reference signals is user equipment (UE) proprietary information, and the network indicates it to the UE through radio resource control (RRC) signaling. The configuration information of the reference signal will be indicated in the RRC signaling for each UE, and the signaling indication overhead is large. Summary of the invention

[0003] The present application provides a communication method and apparatus to reduce the indication overhead of a reference signal.

[0004] In the first aspect, the present application provides a communication method, which can be executed through the interaction between a terminal and a network device, wherein the terminal can be understood as the terminal itself, and can also be understood as a chip set inside the terminal, which is not specifically limited here. The terminal can be a mobile phone, a vehicle-mounted device, an Internet of Things device, etc.; the network device can be understood as the network device itself, and can also be understood as a chip set inside the network device. The network device can be a base station, a satellite, an access point, etc., which is not specifically limited here; the method can be applied to a 5G communication system or a communication system above 5G, and can also be applied to a non-terrestrial communication system, which is not specifically limited here by the present application. In actual application, it is executed as follows:

[0005] The network device determines first indication information, where the first indication information is used to indicate configuration information of a first reference signal corresponding to a first beam and first antenna port number information corresponding to the first beam; the network device broadcasts the first indication information, and after the terminal receives the first indication information, it determines the first reference signal according to the first indication information.

[0006] In the present application, the network device sends the first indication information to the terminal device through broadcasting. The first indication information is beam-level indication information rather than a separate indication for each terminal. This method does not require configuration of reference signal configuration information in the RRC signaling for each terminal, and can reduce the indication overhead of the reference signal.

[0007] In an optional manner, the terminal determines the first reference signal subsequence occupied by the terminal according to a resource deviation between the terminal allocated resources and reference resources, where the reference resources are a common reference point of a resource block grid or a starting position of a bandwidth part (BWP).

[0008] In the present application, after receiving the first indication information, the terminal determines to reorder the first reference signal subsequence based on the resource deviation between the reference resource and the allocated resource to ensure that the subsequence of the reference signal allocated to the terminal with a port number orthogonal to the first antenna port and the first reference signal subsequence are orthogonal in the overlapping part.

[0009] In an optional manner, the network device also broadcasts second indication information, and the second indication information is used to instruct the terminal to determine a reference signal sequence based on a reference resource deviation; the reference resource is a common reference point of a resource block grid or a starting position of a BWP; the terminal receives the second indication information broadcast from the network device, and determines the first reference signal subsequence occupied by the terminal based on a resource deviation between the resources allocated to the terminal and the reference resources.

[0010] In the present application, after the terminal receives the second indication information for instructing the terminal to determine the reference signal sequence based on the reference resource deviation, it determines to reorder the first reference signal subsequence based on the resource deviation between the reference resource and the allocated resource to ensure that the subsequence of the reference signal allocated to the terminal with a port number orthogonal to the first antenna port and the first reference signal subsequence are orthogonal in the overlapping part.

[0011] In an optional manner, the network device determines a resource deviation, where the resource deviation indicates a resource deviation of a common reference point of a resource block grid of a first beam and a second beam, or a resource deviation of a BWP starting position of a first beam and a second beam; the first beam and the second beam have different carrier bandwidths, or the first beam and the second beam have different BWPs; the network device broadcasts third indication information, where the third indication information is used to indicate the resource deviation. The terminal receives the third indication information broadcasted from the network device, and determines the first reference signal subsequence occupied by the terminal based on the third indication information and the resources allocated to the terminal.

[0012] In the present application, after receiving the third indication information for resource deviation, the terminal determines the resource deviation and the resource deviation of the allocated resources, and reorders the first reference signal subsequence to ensure that the subsequence of the reference signal allocated to the terminal with a port number orthogonal to the first antenna port and the first reference signal subsequence are orthogonal in the overlapping part.

[0013] In an optional manner, the first indication information is carried by the following signaling:

[0014] System information block (SIB), or downlink control information (DCI).

[0015] In the present application, the first indication information, the second indication information, and the third indication information may be carried by the same signaling, which is not specifically limited here. Specifically, a field indication may be added to the SIB, a reserved field indication of the SIB may be used, or an existing field may be reused under certain preconditions, which is not specifically limited here. By using the above information to indicate each indication information, the indication overhead may be reduced compared to directly indicating the reference signal configuration information to each terminal one by one through RRC signaling.

[0016] In an optional manner, the network device broadcasts fourth indication information, where the fourth indication information is used to indicate configuration parameters of a beam-level update period of the signaling, and accordingly, the terminal receives the fourth indication information broadcast by the network device.

[0017] In an optional manner, the beam level update period of the signaling is determined by the following formula:

[0018] m=M*D / N

[0019] Where m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam-level update period factor; the value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is 32rf; the value of N is 2 L , L is a positive integer.

[0020] In an optional manner, the beam level update period of the signaling is determined by the following formula:

[0021] m=M*D

[0022] Where m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam-level update period factor; the value of M is 1 or 1 / 2 L ; D indicates the beam-level paging cycle; the value of D is 32rf; or, the value of M is 2 X1, X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is at least one of the following:

[0023] 1RF, 2RF, 4RF, 8RF, or 16RF.

[0024] Using the above method to determine the beam-level update period of the signaling can increase the update frequency of the signaling and improve the flexibility of the reference information configuration.

[0025] In an optional manner, the first reference signal is DMRS, or CSI-RS, or PTRS.

[0026] In an optional manner, the first indication information is also used to indicate configuration information of a second reference signal corresponding to the first beam and second antenna port number information corresponding to the first beam.

[0027] If a beam corresponds to N types of reference signal configuration information and antenna port numbers, for example, N=2, under one beam, some terminals use the first reference signal configuration information and antenna port number information, and the remaining terminals use the second reference signal configuration information and antenna port number information. The two reference signal configurations can be broadcast simultaneously in the broadcast signal, and only 1 bit is used to indicate the index of the reference signal configuration in the terminal-level signaling (such as RRC signaling or DCI), thereby reducing the terminal-level signaling indication overhead.

[0028] In a second aspect, an embodiment of the present application provides a communication device, which may be a terminal (network device) or a chip disposed inside a terminal (a chip disposed inside a network device). The communication device has the function of implementing the above-mentioned first aspect, for example, the communication device includes a module or unit or means corresponding to the steps involved in the above-mentioned first aspect, and the function or unit or means may be implemented by software, or by hardware, or by hardware executing the corresponding software implementation.

[0029] In one possible design, the communication device includes a processing unit and a transceiver unit, wherein the transceiver unit can be used to send and receive signals to realize communication between the communication device and other devices, for example, the transceiver unit is used to receive configuration information from a terminal device; the processing unit can be used to perform some internal operations of the communication device. The transceiver unit can be called an input-output unit, a communication unit, etc., and the transceiver unit can be a transceiver; the processing unit can be a processor. When the communication device is a module (such as a chip) in a communication device, the transceiver unit can be an input-output interface, an input-output circuit or an input-output pin, etc., and can also be called an interface, a communication interface or an interface circuit, etc.; the processing unit can be a processor, a processing circuit or a logic circuit, etc.

[0030] In another possible design, the communication device includes a processor and may also include a transceiver, the transceiver is used to send and receive signals, and the processor executes program instructions to complete the method in any possible design or implementation of the first aspect above. The communication device may also include one or more memories, the memory is used to couple with the processor, and the memory can store the necessary computer programs or instructions for implementing the functions involved in any aspect of the first aspect above. The processor can execute the computer program or instructions stored in the memory, and when the computer program or instructions are executed, the communication device implements the method in any possible design or implementation of the first aspect above.

[0031] In another possible design, the communication device includes a processor, which can be used to couple with a memory. The memory can store necessary computer programs or instructions for implementing the functions involved in any aspect of the first aspect. The processor can execute the computer program or instructions stored in the memory, and when the computer program or instructions are executed, the communication device implements the method in any possible design or implementation of the first aspect.

[0032] In another possible design, the communication device includes a processor and an interface circuit, wherein the processor is used to communicate with other devices through the interface circuit and execute the method in any possible design or implementation of the first aspect above.

[0033] It can be understood that in the above second aspect, the processor can be implemented by hardware or by software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, which is implemented by reading the software code stored in the memory. In addition, the above processors can be one or more, and the memories can be one or more. The memory can be integrated with the processor, or the memory can be separately set from the processor. In the specific implementation process, the memory can be integrated with the processor on the same chip, or can be set on different chips respectively. The embodiment of the present application does not limit the type of memory and the setting method of the memory and the processor.

[0034] In a third aspect, an embodiment of the present application provides a communication system, which includes the terminal and network device in the above-mentioned first aspect.

[0035] In a fourth aspect, the present application provides a chip system, which includes a processor and may also include a memory, for implementing the method described in any possible design in the first aspect. The chip system may be composed of a chip, or may include a chip and other discrete devices.

[0036] In a fifth aspect, the present application also provides a computer-readable storage medium, in which computer-readable instructions are stored. When the computer-readable instructions are executed on a computer, the computer executes a method in any possible design in the first aspect.

[0037] In a sixth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the methods of the various embodiments of the first aspect above.

[0038] For the technical effects that can be achieved in the above-mentioned second to sixth aspects, please refer to the description of the technical effects that can be achieved by the corresponding possible design schemes in the above-mentioned first aspect, and this application will not repeat them here. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of a terrestrial communication system is shown;

[0040] Figure 2 A schematic diagram of a non-terrestrial communication system provided by an embodiment of the present application is shown;

[0041] Figure 3 A schematic diagram of the 5G satellite communication system architecture provided in an embodiment of the present application is shown;

[0042] Figure 4 A flow chart of a communication method provided in an embodiment of the present application is shown;

[0043] Figure 5 A schematic diagram showing resources occupied by a UE is shown;

[0044] Figure 6 A schematic diagram showing resources occupied by a UE provided in the present application is shown;

[0045] Figure 7 A schematic diagram showing resources occupied by a UE provided in the present application is shown;

[0046] Figure 8 A schematic diagram of the structure of a communication device provided in an embodiment of the present application is shown;

[0047] Fig. 9 A schematic diagram showing the structure of another communication device provided in an embodiment of the present application is shown;

[0048] Fig.10 A schematic diagram of the structure of another communication device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. The specific operating method in the method embodiment can also be applied to the device embodiment or system embodiment. Among them, in the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more. Therefore, the implementation of the device and the method can refer to each other, and the repetitions will not be repeated.

[0050] Figure 1 The architecture of a terrestrial network communication system is shown. The communication system 100 may include a network device 110 and terminal devices 101 to 106. It should be understood that the communication system 100 may include more or fewer network devices or terminal devices. The network device or terminal device may be hardware, or software divided from a functional point of view, or a combination of the above two. In addition, the terminal devices 104 to 106 may also form a communication system, for example, the terminal device 105 may send downlink data to the terminal device 104 or the terminal device 106. The network device and the terminal device may communicate through other devices or network elements. The network device 110 may send downlink data to the terminal devices 101 to 106, and may also receive uplink data sent by the terminal devices 101 to 106. Of course, the terminal devices 101 to 106 may also send uplink data to the network device 110, and may also receive downlink data sent by the network device 110.

[0051] The network device 110 is a node in a radio access network (RAN), which can also be called a base station, or a RAN node (or device). At present, some examples of access network devices are: next generation node B (gNB), transmitting point (TP), transmission reception point (TRP), home base station (e.g., home evolved NodeB, or homeNode B, HNB), macro base station, micro base station (also called small station), relay station, base band unit (BBU) in a 5G network, or network devices in a communication system evolved after 5G such as the sixth generation (6G). The network device 110 may also be other devices with network device functions, for example, the network device 110 may also be a device that performs base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, etc. It may also include a centralized unit (CU) and a distributed unit (DU) in a cloud access network (C-RAN) system, and a network device in a non-terrestrial network (NTN) communication system, that is, it may be deployed on a high-altitude platform or satellite. The embodiments of the present application do not specifically limit this.

[0052] Terminal devices 101 to 106, which may also be referred to as UE, mobile station (MS), mobile terminal (MT), etc., are devices that provide voice or data connectivity to users, and may also be IoT devices. For example, terminal devices 101 to 106 include handheld devices and vehicle-mounted devices with wireless connection functions. At present, the terminal devices 101 to 106 may be: mobile phones, tablet computers, laptop computers, PDAs, customer-premises equipment (CPE), mobile internet devices (MID), wearable devices (such as smart watches, smart bracelets, pedometers, etc.), vehicle-mounted devices (such as cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed trains, etc.), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, smart home devices (such as refrigerators, televisions, air conditioners, electric meters, etc.), smart robots, workshop equipment, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, flying devices (such as smart robots, hot air balloons, drones, airplanes), etc. The terminal devices 101 to 106 may also be other devices having terminal functions. For example, the terminal devices 101 to 106 may also be devices that serve as terminal functions in D2D communications.

[0053] based on Figure 1 Based on the description of the terrestrial network communication system architecture shown in FIG. 1 , the satellite network routing method provided in the embodiment of the present application can be applied to the NTN communication system. Figure 2As shown, the NTN communication system includes a satellite 201 and a terminal device 202. The explanation of the terminal device 202 can refer to the relevant description of the above-mentioned terminal devices 101 to 106. The satellite 201 can also be called a high-altitude platform, a high-altitude aircraft, or a satellite base station. In terms of the NTN communication system in connection with the terrestrial network communication system, the satellite 201 can be regarded as one or more network devices in the terrestrial network communication system architecture. The satellite 201 provides communication services to the terminal device 202, and the satellite 201 can also be connected to the core network device. The structure and functions of the satellite 201 can also refer to the above-mentioned description of the network device. The communication method between the satellite 201 and the terminal device 202 can also refer to the above-mentioned Figure 1 The description in . I will not repeat it here.

[0054] Taking 5G as an example, a 5G satellite communication system architecture is as follows: Figure 3 As shown in the figure, ground terminal equipment accesses the network through the 5G new air interface, and the 5G base station is deployed on the satellite and connected to the ground core network through a wireless link. At the same time, there is a wireless link between satellites to complete the signaling interaction and user data transmission between base stations. Figure 3 The devices and interfaces in the are described as follows:

[0055] 5G core network: user access control, mobility management, session management, user security authentication, billing and other services. It consists of multiple functional units, which can be divided into functional entities of the control plane and the data plane. The access and mobility management function (AMF) is responsible for user access management, security authentication, and mobility management. The user plane function (UPF) is responsible for managing the transmission of user plane data, traffic statistics and other functions. The session management function (SMF) is mainly used for session management in mobile networks, such as session establishment, modification, and release.

[0056] Ground station: responsible for forwarding signaling and business data between satellite base stations and 5G core network.

[0057] 5G New Air Interface: The wireless link between the terminal and the base station.

[0058] Xn interface: The interface between 5G base stations, mainly used for signaling interactions such as switching.

[0059] NG interface: The interface between the 5G base station and the 5G core network, which mainly interacts with the core network's non-access stratum (NAS) signaling and user service data.

[0060] The network devices in the terrestrial network communication system and the satellites in the NTN communication system can be uniformly regarded as network devices. The device for realizing the function of the network device can be a network device; it can also be a device that can support the network device to realize the function, such as a chip system, which can be installed in the network device. When describing the technical solution provided by the embodiment of the present application below, the technical solution provided by the embodiment of the present application is described by taking the device for realizing the function of the network device as a satellite as an example. It can be understood that when the method provided by the embodiment of the present application is applied to the terrestrial network communication system, the actions performed by the satellite can be applied to the base station or network device for execution.

[0061] In the embodiment of the present application, the device for realizing the function of the terminal device may be a terminal device; or it may be a device capable of supporting the terminal device to realize the function, such as a chip system, which may be installed in the terminal device. In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices. In the technical solution provided in the embodiment of the present application, the technical solution provided in the embodiment of the present application is described by taking the device for realizing the function of the terminal device as a terminal or UE as an example.

[0062] In addition, the above-mentioned satellites may be geostationary satellites, non-geostationary satellites, artificial satellites, low-orbit satellites, medium-orbit satellites, and high-orbit satellites, etc., which are not specifically limited in the present application.

[0063] When a terminal device receives reference signal configuration information from a network device, it needs to determine the occupied reference signal resources based on the reference signal configuration information. The 5G NR standard defines two reference signals for channel state measurement: DMRS and CSI-RS. The configuration information of these two reference signals is UE-specific information, and the network device indicates it to the UE through RRC signaling.

[0064] Taking downlink (DL) DMRS as an example, NR only supports UE-specific DMRS for DL ​​channel estimation. Since NR adopts a codebook-based design, DMRS and data are precoded using the same codebook. The UE only needs to estimate the equivalent channel without knowing the DL precoding codebook used by the base station to demodulate the data. The NR standard supports up to 12 DL orthogonal DMRS ports. For single-user multiple-input multiple-output (SU-MIMO), each UE supports up to 8 DL orthogonal DMRS ports; for multiple user multiple input multiple output (MU-MIMO), each UE supports up to 4 DL orthogonal DMRS ports.

[0065] However, in NTN, services are provided based on beams, and the transmission environment of users in the beams is similar. Each beam uses a precoding codebook, and the user codebook is not distinguished in a single beam. In addition, users in the beam preferably transmit only one data stream, and there is no need to use multiple DL orthogonal DMRS ports in the beam. Therefore, DL DMRS can be indicated as beam common information. CSI-RS can also be indicated as beam common information in NTN scenarios.

[0066] Based on this, in order to avoid indicating the configuration information of the reference signal for each UE through RRC signaling, the present application proposes a method for indicating the configuration information of the reference signal at the beam level to reduce the indication overhead of the reference signal. Figure 4 , can be executed through the interaction between the terminal and the network device, wherein the terminal can be understood as the terminal itself, and can also be understood as a chip set inside the terminal, which is not specifically limited here. The terminal can be a mobile phone, a vehicle-mounted device, an Internet of Things device, etc.; the network device can be understood as the network device itself, and can also be understood as a chip set inside the network device. The network device can be a base station, a satellite, an access point, etc.; this method can be applied to 5G communication systems or communication systems above 5G, and can also be applied to non-terrestrial communication systems, which are not specifically limited in this application. In actual application, it is executed as follows:

[0067] Step 401: The network device determines first indication information, where the first indication information is used to indicate configuration information of a first reference signal corresponding to a first beam and first antenna port number information corresponding to the first beam.

[0068] Specifically, the first beam can provide communication services for multiple terminals, such as providing communication services for terminals located in area 1. The terminals in area 1 may include: mobile phones, smart watches, laptops, etc., which are only exemplified here. The configuration information of the reference signal and the antenna port number information used by the multiple terminals served by the first beam are usually the same, based on which the network device can determine the first indication information.

[0069] The above-mentioned first reference signal can be DMRS, CSI-RS, or PTRS. In future communications, it can also be other reference information used for channel estimation, which is not specifically limited in this application. In addition, the above-mentioned reference signal and the antenna port number are usually one-to-one corresponding. For example, the reference signal is DMRS, and the antenna port number of DMRS configuration type 1 can be 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, where ports 1000, 1001, 1004, and 1005 belong to the same CDM group. DMRS_1000 is used here to represent the DMRS with a port number of 1000. The configuration information of the first reference signal includes: the time-frequency density and scrambling method of the first reference signal, which is not specifically limited in this application.

[0070] When the first reference signal is DMRS, the configuration information may be illustrated as follows:

[0071]

[0072] Among them, dmrs-Type indicates the type of DMRS, dmrs-AdditionalPosition indicates the additional DMRS position, maxLength indicates the number of OFDM symbols occupied by the preceding DMRS, scramblingID0 and scramblingID1 indicate the scrambling mode of DMRS, and phaseTrackingRS indicates the configuration of PTRS.

[0073] In addition, if the user positions in the first beam are different, different reference signal configurations are required, such as the time-frequency density of DMRS, the time-frequency density of CSI-RS, etc. For example, if the UE is located in a position closer to the satellite in the beam, the link budget is better, and a single-symbol pilot can be configured. If the UE is located in a position farther away from the satellite in the beam, the link budget is poor, and a double-symbol pilot can be configured. Therefore, the first indication information can also indicate the configuration information of the second reference signal corresponding to the first beam and the second antenna port number information corresponding to the first beam, that is, indicating the configuration information of multiple groups of reference signals in the beam-level broadcast signal (the multiple groups of reference signals can be of the same type or of different types, and different reference signals have different uses, which are not specifically limited in this application), indicating the reference signal configuration index in the UE-level RRC signaling or DCI, such as: the reference signal corresponding to the first beam includes DMRS1, DMRS2, and CSI-RS1, and the terminals served by the first beam include terminals 1-terminal 100, such as indicating the configuration information of DMRS1, DMRS2, and CSI-RS1 in the first indication information. and the antenna port number information corresponding to each reference signal, index 1 is indicated in the RRC signaling of UE1-UE50, wherein index 1 corresponds to the configuration information of DMRS1, that is, it indicates that UE1-UE50 adopts the configuration information of DMRS1 to determine the reference signal, index 2 is indicated in the RRC signaling of UE51-UE100, wherein index 2 corresponds to the configuration information of DMRS2, that is, it indicates that UE51-UE100 adopts the configuration information of DMRS2 to determine the reference signal, index 3 is indicated in the RRC signaling of UE1-UE100, wherein index 3 corresponds to the configuration information of CSI-RS1, that is, it indicates that UE1-UE100 can also use the configuration information of CSI-RS1 to determine the reference signal. If a beam corresponds to N types of reference signal configuration information and antenna port numbers, for example, N=2, under one beam, some terminals use the first reference signal configuration information and antenna port number information, and the remaining terminals use the second reference signal configuration information and antenna port number information. The two reference signal configurations can be broadcast simultaneously in the broadcast signal, and only 1 bit is used to indicate the index of the reference signal configuration in the terminal-level signaling (such as RRC signaling or DCI), thereby reducing the terminal-level signaling indication overhead.

[0074] Step 402: The network device broadcasts first indication information. Correspondingly, the terminal may receive the first indication information.

[0075] The network device can indicate through signaling such as SIB, DCI (the DCI can be used to schedule SIB), master information block (MIB), etc. Of course, in actual application, other signaling indications for broadcasting can also be used, which are not specifically limited here. Specifically, a field can be added to SIB1 to indicate the information indicated by the above-mentioned first indication information, and the reserved field indication of SIB can also be used, which is not specifically limited here. By using the above-mentioned signaling to indicate the first indication information, the indication overhead can be reduced compared to directly indicating the reference signal configuration information of each terminal one by one through RRC signaling.

[0076] For example, a field is added to SIB1 to indicate the beam-level DMRS configuration information Beam-DMRS-DownlinkConfig and the beam-level antenna port number Beam-Antenna-Port; if there is no need to change the beam-level DMRS configuration and the beam-level antenna port number during the update period of SIB1, the DMRS configuration and the antenna port number are no longer indicated in the UE-level RRC signaling and DCI; if there is a need to change the beam-level DMRS configuration and the beam-level antenna port number during the update period of SIB1, the updated DMRS configuration and the antenna port number are indicated in the UE-level RRC signaling and DCI, and the reference signal is determined by the information in the UE-level RRC signaling and DCI indication. In addition, a field can be added to the DCI that schedules SIB1 to indicate the beam-level antenna port. This is only an example and is not specifically limited.

[0077] In addition, in the existing NR standard, the broadcast update period (that is, the broadcast message update period) is defined as SFN mod m = 0, where SFN is the radio frame number, and m = modificationPeriodCoeff (update period factor) * defaultPagingCycle (default paging cycle) represents the update period, that is, the broadcast message can only be updated when the radio frame satisfies the above formula. modificationPeriodCoeff and defaultPagingCycle are parameters in SIB2, for example, modificationPeriodCoeff = 2, defaultPagingCycle = 32rf, then the update period is 64rf, and rf indicates the number of radio frames.

[0078] In the existing standards, the minimum update period of the broadcast message is 64 radio frames (640ms). If the DMRS configuration information needs to be updated within 640ms, it cannot be updated through the broadcast message, which will limit the beam scheduling. Therefore, this application redefines the update period of the beam-level broadcast message, and the update period of the beam-level broadcast message can be set to 1 / N of the broadcast update period, where N is 2. L , L is a positive integer. This method can increase the update frequency of signaling and improve the flexibility of reference information configuration. The following methods can be used:

[0079] Method 1: The beam-level update period of the signaling is determined by the following formula 1:

[0080] m=M*D / N Formula 1

[0081] Where m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam-level update period factor (i.e., modificationPeriodCoeff); the value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle (ie, defaultPagingCycle); the value of D is 32rf.

[0082] Method 2: The beam-level update period of the signaling is determined by the following formula 2:

[0083] m=M*D Formula 2

[0084] Where M indicates the beam-level update period factor; the value of M is 1 or 1 / 2 L ; D indicates the beam-level paging cycle; the value of D is 32rf;

[0085] Method 3: The beam-level update period of the signaling is determined by the above formula 2. However, the value of M is 2 X1 , X1 is an integer greater than 1; the value of D is at least one of the following: 1rf, 2rf, 4rf, 8rf, or 16rf.

[0086] Through the above method, the signaling update period can be reduced to a minimum of 1 radio frame, that is, the beam-level broadcast message can be updated every 10ms, thereby improving the flexibility of reference signal configuration update.

[0087] In addition, in actual application, the configuration parameters of the beam level update period can be added to the broadcast signal, such as the configuration parameters of the beam level update period indicated by the fourth indication information. When the terminal receives the beam level update period, this parameter can be used to calculate the beam level broadcast update period.

[0088] Step 403: The terminal determines a first reference signal according to the first indication information.

[0089] Specifically, the terminal may directly determine the subsequence of the first reference signal based on the first indication information with reference to an existing protocol rule, or may determine it based on a preset subsequence configuration rule of the reference signal, which is not specifically limited in the present application.

[0090] When multiple beams of multiple orthogonal ports are used for simultaneous transmission, the orthogonality of DMRS between beams of multiple orthogonal ports needs to be ensured. Since the mapping of DL DMRS in the NR standard starts from subcarrier 0 of resource block (RB) 0 within the bandwidth allocated to the UE, even if the two beams have the same carrier bandwidth (wherein the same carrier bandwidth means that the starting position, the ending position and the length of the carrier bandwidth of the two beams are the same), that is, they have the same Point-A, which is the common reference point of the resource block grid. The center point of subcarrier 0 of common resource block (CRB) 0 with all subcarrier intervals is usually called point-A, which can be understood as the RB position at the bottom of the full bandwidth. Point-A is calculated by k_SSB and OffsetToPointA. Where k_SSB is the offset between subcarrier 0 of SSB and subcarrier 0 of CRB where SSB is located, which is determined by the information carried in MIB. OffsetToPointA is the offset between subcarrier 0 of CRB where SSB is located and subcarrier 0 of CRB0, indicated by the high-level parameter ssb-SubcarrierOffset. In addition, point-A can be used to calculate the starting position of BWP by formula 3:

[0091]

[0092] Among them, O carrier express The offset to point-A is indicated by the parameter offsetToCarrier. RB start Indicates BWP is off The offset is determined by the parameter locationAndBandwidth, which can also determine the number of consecutive PRBs of BWP. This can be understood by referring to the existing protocol and will not be described in detail here.

[0093] However, when the actual service bandwidths of the two beams are different and orthogonal beam-level DMRS ports are used between the beams, the DMRS sequences may not be orthogonal in the overlapping parts. Figure 5As shown in FIG. 1 , taking the example that each beam 1 and beam 2 serve one user respectively, when the orthogonal DMRS ports belong to the same CDM group (for example, port 1000 and port 1001), but due to the different actual occupied bandwidths, the sequences are "misaligned", resulting in different overlaps between the two DMRS sequences of the orthogonal DMRS ports, that is, Figure 5 The sequences of the overlapping parts of the bandwidth occupied by the users corresponding to beam 1 and the bandwidth occupied by the users corresponding to beam 2 are different, wherein the sequences of the overlapping parts of beam 1 are DMRS_1000(RB0) and DMRS_1000(RB1), and the sequences of the overlapping parts of beam 2 are DMRS_1001(RB4) and DMRS_1001(RB5), wherein DMRS_1000(RB0) represents a subsequence of the DMRS sequence with port 1000 on RB0, DMRS_1000(RB1) represents a subsequence of the DMRS sequence with port 1000 on RB1, DMRS_1001(RB4) represents a subsequence of the DMRS sequence with port 1001 on RB4, and DMRS_1001(RB5) represents a subsequence of the DMRS sequence with port 1001 on RB5.

[0094] Based on this, the terminal may determine the subsequence of the first reference signal based on a preset reference signal subsequence configuration rule to ensure that the overlapping portion of the subsequence of the reference signal under the beam adjacent to the first beam is the same as that of the first reference signal subsequence.

[0095] Next, the adjacent beam of the first beam, the second beam, is used as an example to illustrate the following two different situations, as follows:

[0096] Case 1: The carrier bandwidth of the first beam is the same as that of the second beam (or the BWP of the first beam and the second beam start at the same bandwidth). Same location)

[0097] Rule 1: The terminal determines the first reference signal subsequence occupied by the terminal according to the resource deviation between the terminal's allocated resources and the reference resources, where the reference resources are the common reference point of the resource block grid or the starting position of the bandwidth part BWP. That is, when the terminal receives the first indication information, it can be determined to directly use the resource deviation between the reference resource and the allocated resources to reorder the first reference signal subsequence to ensure that the subsequence of the reference signal allocated to the terminal with a port number orthogonal to the first antenna port and the first reference signal subsequence are orthogonal in the overlapping part.

[0098] Rule 2: The network device also broadcasts the second indication information, which is used to instruct the terminal to determine the reference signal sequence according to the reference resource deviation; the reference resource is the common reference point of the resource block grid or the starting position of the BWP; the terminal receives the second indication information from the network device, and determines the first reference signal subsequence occupied by the terminal according to the resource deviation between the terminal's allocated resources and the reference resource. That is, after the terminal receives the second indication information, it determines to use the resource deviation between the reference resource and the allocated resource to reorder the first reference signal subsequence.

[0099] In actual application, the network device and the terminal can be pre-configured to use the above-mentioned rule 1 or rule 2, which is not specifically limited in this application. The difference between the two rules lies mainly in the execution timing. One does not require the second indication information and can directly use the resource deviation between the reference resource and the allocated resource to reorder the first reference signal subsequence. The other needs to receive the second indication information and then use the resource deviation between the reference resource and the allocated resource to reorder the first reference signal subsequence. This application does not specifically limit which of the above-mentioned rules to use, which can be flexibly set according to actual needs.

[0100] Next, Figure 6 As an example, how to use the resource deviation between the reference resource and the allocated resource (where, Figure 6 is relative Figure 5 ), reordering the first reference signal subsequence, Figure 6 In the example, beam 1 and beam 2 have the same carrier bandwidth, where the reference resource is point-A. The resource offset UE-offsetToPointA between the resources occupied by the terminal in beam 1 and point-A is 8 RBs. Figure 5 The resources DMRS_1000(RB0)-DMRS_1000(RB3) occupied by the terminal in beam 2 are reordered to DMRS_1000(RB8) and DMRS_1000(RB11). In beam 2, the resource offset UE-offsetToPointA between the resources occupied by the terminal and point-A is 4 RBs. Figure 5 The resources DMRS_1001(RB0)-DMRS_1001(RB5) occupied by the middle terminal are reordered to DMRS_1001(RB4)-DMRS_1001(RB9). Then the sequence of the overlapping part of the bandwidth occupied by the user corresponding to beam 1 and the bandwidth occupied by the user corresponding to beam 2 is the same, which can ensure that the DMRS sequence is orthogonal in the overlapping part.

[0101] Case 2: The carrier bandwidths of the first beam and the second beam are different (or the BWP of the first beam and the second beam are different). Different starting positions)

[0102] The network device determines a resource deviation, and the resource deviation indicates a resource deviation of a common reference point of a resource block grid of a first beam and a second beam, or a resource deviation of a BWP starting position of a first beam and a second beam; the network device broadcasts third indication information, and the third indication information is used to indicate the resource deviation. The terminal receives the third indication information from the network device, and determines the first reference signal subsequence occupied by the terminal based on the third indication information and the resources allocated to the terminal. After receiving the third indication information indicating the resource deviation, the terminal reorders the first reference signal subsequence based on the resource deviation and the resources allocated to the terminal to ensure that the subsequence of the reference signal allocated to the terminal with a port number orthogonal to the first antenna port and the first reference signal subsequence are orthogonal in the overlapping part.

[0103] Specifically, please refer to Figure 7 To understand, beam 1 and beam 2 have different carrier bandwidths. Taking each beam 1 and beam 2 serving one user respectively as an example, when the orthogonal DMRS ports belong to the same CDM group (for example, port 1000 and port 1001), the common reference point of the resource block grid of beam 1 is point-A, and the common reference point of the resource block grid of beam 2 is point-A0, wherein the deviation between point-A and point-A0 is the resource deviation. If point-A is used as the reference, the resource deviation can be the value obtained by point-A0-point-A; if point-A0 is used as the reference, the resource deviation can be the value obtained by point-A-point-A0. This application does not specifically limit this. In actual indication, if the indication field of the resource deviation is Beam-offsetToPointA0, it can be determined that the calculation of the resource deviation is based on point-A0. Figure 6 In the figure, Beam-offsetToPointA0 is 2 RBs, and the resource offset UE-offsetToPointA between the terminal and point-A0 in beam 1 is 8 RBs, which are reordered as DMRS_1000(RB8)-DMRS_1000(RB11). In beam 2, the resource offset UE-offsetToPointA between the terminal and point-A is 2 RBs, and the resource offset UE-offsetToPointA between the terminal and point-A0 is 4 RBs, which are reordered as DMRS_1001(RB4)-DMRS_1001(RB9). Then, the subsequence of the overlapping part of the bandwidth occupied by the user corresponding to beam 1 and the bandwidth occupied by the user corresponding to beam 2 is the same.

[0104] In the present application, the network device indicates the first indication information to the terminal device through broadcasting. The first indication information is beam-level indication information rather than individual indication for each terminal. This method does not require configuration of reference signal configuration information in RRC signaling for each terminal, thereby reducing the indication overhead of the reference signal.

[0105] In addition, it should be noted that the first indication information, the second indication information, the third indication information and the fourth indication information in the present application can all be carried through the SIB and the DCI used to schedule the SIB, and the present application does not specifically limit this.

[0106] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of device interaction. It is understandable that, in order to implement the above functions, each device may include a hardware structure and / or software module corresponding to each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0107] The embodiment of the present application can divide the functional units of the device according to the above method example, for example, each functional unit can be divided according to each function, or two or more functions can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units.

[0108] In the case of an integrated unit, Figure 8 FIG. 1 shows a possible exemplary block diagram of a communication device involved in an embodiment of the present application. Figure 8As shown, the communication device 800 may include: a processing unit 801 and a transceiver unit 802. The processing unit 801 is used to control and manage the actions of the communication device 800. The transceiver unit 802 is used to support the communication between the communication device 800 and other devices. Optionally, the transceiver unit 802 may include a receiving unit and / or a sending unit, which are respectively used to perform receiving and sending operations. Optionally, the communication device 800 may also include a storage unit for storing program code and / or data of the communication device 800. The transceiver unit may be called an input-output unit, a communication unit, etc., and the transceiver unit may be a transceiver; the processing unit may be a processor. When the communication device is a module (such as a chip) in a communication device, the transceiver unit may be an input-output interface, an input-output circuit or an input-output pin, etc., and may also be called an interface, a communication interface or an interface circuit, etc.; the processing unit may be a processor, a processing circuit or a logic circuit, etc. Specifically, the device may be the above-mentioned terminal, network device, etc.

[0109] In one embodiment, the transceiver unit 802 is used to receive first indication information broadcast from a network device, where the first indication information is used to indicate configuration information of a first reference signal corresponding to a first beam and first antenna port number information corresponding to the first beam; the processing unit 801 is used to determine the first reference signal based on the first indication information.

[0110] Optionally, the processing unit 801 is used to determine a first reference signal subsequence occupied by the terminal according to a resource deviation between resources allocated to the terminal and reference resources, where the reference resources are a common reference point of a resource block grid or a starting position of a bandwidth part BWP.

[0111] Optionally, the transceiver unit 802 is also used to receive second indication information broadcast from the network device, and the second indication information is used to instruct the terminal to determine a reference signal sequence based on a reference resource deviation; the reference resource is a common reference point of the resource block grid or a starting position of a BWP; the processing unit 801 also uses language to determine the first reference signal subsequence occupied by the terminal based on a resource deviation between the resources allocated to the terminal and the reference resources.

[0112] Optionally, the transceiver unit 802 is also used to receive third indication information broadcast from the network device, the third indication information is used to indicate the resource deviation between the first beam and the second beam; the resource deviation indicates the resource deviation of a common reference point of the resource block grids of the first beam and the second beam, or the resource deviation of the BWP starting position of the first beam and the second beam; the carrier bandwidths of the first beam and the second beam are different, or the first beam and the second beam have different BWPs; the processing unit 801 is also used to determine the first reference signal subsequence occupied by the terminal based on the third indication information and the resources allocated to the terminal.

[0113] Optionally, the first indication information is carried through the following signaling: SIB, or DCI.

[0114] Optionally, the transceiver unit 802 is further used to receive fourth indication information broadcast from the network device, where the fourth indication information is used to indicate configuration parameters of a beam-level update period of the signaling.

[0115] Optionally, the beam level update period of the signaling is determined by the following formula:

[0116] m=M*D / N

[0117] Where m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam-level update period factor; the value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is 32rf; the value of N is 2 L , L is a positive integer.

[0118] Optionally, the beam level update period of the signaling is determined by the following formula:

[0119] m=M*D

[0120] Where m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam-level update period factor; the value of M is 1 or 1 / 2 L ; D indicates the beam-level paging cycle; the value of D is 32rf; or, the value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is at least one of the following: 1rf, 2rf, 4rf, 8rf, or 16rf.

[0121] Optionally, the first reference signal is DMRS, or CSI-RS, or PTRS.

[0122] Optionally, the first indication information is also used to indicate configuration information of a second reference signal corresponding to the first beam and second antenna port number information corresponding to the first beam.

[0123] In another embodiment, the processing unit 801 is used to determine first indication information, where the first indication information is used to indicate configuration information of a first reference signal corresponding to a first beam and first antenna port number information corresponding to the first beam; the transceiver unit 802 is used to broadcast the first indication information.

[0124] Optionally, the transceiver unit 802 is further used to broadcast second indication information, where the second indication information is used to instruct the terminal to determine a reference signal sequence according to a reference resource deviation; the reference resource is a common reference point of a resource block grid or a starting position of a BWP.

[0125] Optionally, the processing unit 801 is also used to determine a resource deviation, where the resource deviation indicates a resource deviation of a common reference point of the resource block grids of the first beam and the second beam, or a resource deviation of a BWP starting position of the first beam and the second beam; the carrier bandwidths of the first beam and the second beam are different, or the first beam and the second beam have different BWPs; the transceiver unit 802 is also used to broadcast third indication information, where the third indication information is used to indicate the resource deviation.

[0126] Optionally, the first indication information is carried by the following signaling:

[0127] SIB, or DCI.

[0128] Optionally, the transceiver unit 802 is further used to broadcast fourth indication information, where the fourth indication information is used to indicate configuration parameters of a beam-level update period of the signaling.

[0129] Optionally, the beam level update period of the signaling is determined by the following formula:

[0130] m=M*D / N

[0131] Where m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam-level update period factor; the value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is 32rf; the value of N is 2 L , L is a positive integer.

[0132] Optionally, the beam level update period of the signaling is determined by the following formula:

[0133] m=M*D

[0134] Where m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam-level update period factor; the value of M is 1 or 1 / 2 L ; D indicates the beam-level paging cycle; the value of D is 32rf; or, the value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is at least one of the following: 1rf, 2rf, 4rf, 8rf, or 16rf.

[0135] Optionally, the first reference signal is DMRS, or CSI-RS, or PTRS.

[0136] Optionally, the first indication information is also used to indicate configuration information of a second reference signal corresponding to the first beam and second antenna port number information corresponding to the first beam.

[0137] like Fig. 9As shown, a communication device 900 is also provided in the present application. The communication device 900 may be a chip or a chip system. The communication device may be located in a device involved in any of the above method embodiments, such as a first satellite, a network device, a ground device, etc., to perform actions corresponding to the device.

[0138] Optionally, the chip system may consist of the chip, or may include the chip and other discrete devices.

[0139] The communication device 900 includes a processor 910 .

[0140] The processor 910 is used to execute the computer program stored in the memory 920 to implement the actions of each device in any of the above method embodiments.

[0141] The communication device 900 may further include a memory 920 for storing computer programs.

[0142] Optionally, the memory 920 is coupled to the processor 910. Coupling is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. Optionally, the memory 920 is integrated with the processor 910.

[0143] The processor 910 and the memory 920 may be one or more and are not limited.

[0144] Optionally, in practical applications, the communication device 900 may include a transceiver 930 or may not include the transceiver 930, which is illustrated by a dotted box in the figure, and the communication device 900 may exchange information with other devices through the transceiver 930. The transceiver 930 may be a circuit, a bus, or any other device that can be used for information exchange.

[0145] In a possible implementation, the communication device 900 may be the first satellite or ground equipment in the implementation of the above methods.

[0146] The specific connection medium between the transceiver 930, the processor 910 and the memory 920 is not limited in the embodiment of the present application. Fig. 9 The memory 920, the processor 910 and the transceiver 930 are connected by a bus. Fig. 9 The connections between the other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig. 9Only one thick line is used to represent it, but it does not mean that there is only one bus or one type of bus. In the embodiment of the present application, the processor can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware processor for execution, or can be executed by a combination of hardware and software modules in the processor.

[0147] In the embodiment of the present application, the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM). The memory may also be any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory in the embodiment of the present application may also be a circuit or any other device that can implement a storage function, for storing computer programs, program instructions and / or data.

[0148] Based on the above embodiments, see Fig.10 The embodiment of the present application also provides another communication device 1000, including: an interface circuit 1010 and a logic circuit 1020; the interface circuit 1010 can be understood as an input and output interface, which can be used to execute the sending and receiving steps of each device in any of the above method embodiments; the logic circuit 1020 can be used to run codes or instructions to execute the method executed by each device in any of the above embodiments, which will not be repeated.

[0149] Based on the above embodiments, the embodiments of the present application further provide a computer-readable storage medium, which stores instructions. When the instructions are executed, the method executed by each device in any of the above method embodiments is implemented. The computer-readable storage medium may include: a USB flash drive, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk, and other media that can store program codes.

[0150] Based on the above embodiments, an embodiment of the present application provides a communication system, which includes the first satellite, ground equipment and other satellites mentioned in any of the above method embodiments, and can be used to execute the method executed by each device in any of the above method embodiments.

[0151] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, compact disc read-only memory (CD-ROM), optical storage, etc.) containing computer-usable program codes.

[0152] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0153] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0154] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

Claims

1. A communication method, characterized in that: include: The terminal receives first indication information broadcasted from a network device, where the first indication information is used to indicate configuration information of a first reference signal corresponding to a first beam and first antenna port number information corresponding to the first beam; The terminal determines the first reference signal according to the first indication information.

2. The method according to claim 1, characterized in that The terminal determines the first reference signal according to the first indication information, including: The terminal determines a first reference signal subsequence occupied by the terminal according to a resource deviation between a resource allocated to the terminal and a reference resource, where the reference resource is a common reference point of a resource block grid or a starting position of a bandwidth part BWP.

3. The method according to claim 1, characterized in that: The method further comprises: The terminal receives second indication information broadcasted by the network device, where the second indication information is used to instruct the terminal to determine a reference signal sequence according to a reference resource deviation; the reference resource is a common reference point of a resource block grid or a starting position of a BWP; The terminal determines, according to a resource offset between resources allocated to the terminal and reference resources, a first reference signal subsequence occupied by the terminal.

4. The method according to claim 1, characterized in that: The method further comprises: The terminal receives third indication information broadcasted by the network device, where the third indication information is used to indicate a resource deviation between the first beam and the second beam; the resource deviation indicates a resource deviation of a common reference point of a resource block grid of the first beam and the second beam, or a resource deviation of a BWP starting position of the first beam and the second beam; the first beam and the second beam have different carrier bandwidths, or the first beam and the second beam have different BWPs; The terminal determines, according to the third indication information and the resources allocated to the terminal, a first reference signal subsequence occupied by the terminal.

5. The method according to any one of claims 1 to 4, characterized in that: The first indication information is carried by the following signaling: System Information Block SIB, or Downlink Control Information DCI.

6. The method according to claim 5, characterized in that Also includes: The terminal receives fourth indication information broadcast from the network device, where the fourth indication information is used to indicate configuration parameters of a beam-level update period of the signaling.

7. The method according to claim 6, characterized in that The beam level update period of the signaling is determined by the following formula: m=M*D / N Wherein, m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam level update period factor; the value of M is 2 X1 , x1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is 32rf; the value of N is 2 L , where L is a positive integer.

8. The method according to claim 6, characterized in that The beam level update period of the signaling is determined by the following formula: m=M*D Wherein, m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam level update period factor; the value of M is 1 or 1 / 2 L ; The D indicates the beam-level paging cycle; the value of D is 32rf; or, The value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is at least one of the following: 1RF, 2RF, 4RF, 8RF, or 16RF.

9. The method according to any one of claims 1 to 8, characterized in that: The first reference signal is a demodulation reference signal DMRS, or a channel state information reference signal CSI-RS, or a phase tracking reference signal PTRS.

10. The method according to any one of claims 1 to 9, characterized in that: The first indication information is further used to indicate configuration information of a second reference signal corresponding to the first beam and second antenna port number information corresponding to the first beam.

11. A communication method, characterized in that: include: The network device determines first indication information, where the first indication information is used to indicate configuration information of a first reference signal corresponding to a first beam and first antenna port number information corresponding to the first beam; The network device broadcasts the first indication information.

12. The method according to claim 11, characterized in that The method further comprises: The network device broadcasts second indication information, where the second indication information is used to instruct the terminal to determine a reference signal sequence according to a reference resource deviation; the reference resource is a common reference point of a resource block grid or a starting position of a BWP.

13. The method according to claim 11, characterized in that The method further comprises: The network device determines a resource deviation, where the resource deviation indicates a resource deviation of a common reference point of a resource block grid of the first beam and the second beam, or a resource deviation of a BWP start position of the first beam and the second beam; the first beam and the second beam have different carrier bandwidths, or the first beam and the second beam have different BWPs; The network device broadcasts third indication information, where the third indication information is used to indicate the resource deviation.

14. The method according to any one of claims 11 to 13, characterized in that: The first indication information is carried by the following signaling: System Information Block SIB, or Downlink Control Information DCI.

15. The method according to claim 14, characterized in that Also includes: The network device broadcasts fourth indication information, where the fourth indication information is used to indicate configuration parameters of a beam-level update period of the signaling.

16. The method according to claim 15, characterized in that The beam level update period of the signaling is determined by the following formula: m=M*D / N Wherein, m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam level update period factor; the value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is 32rf; the value of N is 2 L , where L is a positive integer.

17. The method according to claim 15, characterized in that The beam level update period of the signaling is determined by the following formula: m=M*D Wherein, m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam level update period factor; the value of M is 1 or 1 / 2 L ; The D indicates the beam-level paging cycle; the value of D is 32rf; or, The value of M is 2X1, where X1 is an integer greater than 1; D indicates a beam-level paging cycle; and the value of D is at least one of the following: 1RF, 2RF, 4RF, 8RF, or 16RF.

18. The method according to any one of claims 11 to 17, characterized in that: The first reference signal is a demodulation reference signal DMRS, or a channel state information reference signal CSI-RS, or a phase tracking reference signal PTRS.

19. The method according to any one of claims 11 to 18, characterized in that: The first indication information is further used to indicate configuration information of a second reference signal corresponding to the first beam and second antenna port number information corresponding to the first beam.

20. A communication device, characterized in that: include: A transceiver unit, configured to receive first indication information broadcasted from a network device, wherein the first indication information is used to indicate configuration information of a first reference signal corresponding to a first beam and first antenna port number information corresponding to the first beam; A processing unit is used to determine the first reference signal according to the first indication information.

21. The device according to claim 20, characterized in that The processing unit is used for: A first reference signal subsequence occupied by the terminal is determined according to a resource deviation between a resource allocated to the terminal and a reference resource, wherein the reference resource is a common reference point of a resource block grid or a starting position of a bandwidth part BWP.

22. The device according to claim 20, characterized in that The transceiver unit is further used to: receive second indication information broadcasted by the network device, wherein the second indication information is used to instruct the terminal to determine a reference signal sequence according to a reference resource deviation; the reference resource is a common reference point of a resource block grid or a starting position of a BWP; The processing unit is further configured to determine a first reference signal subsequence occupied by the terminal according to a resource deviation between resources allocated to the terminal and reference resources.

23. The device according to claim 20, characterized in that The transceiver unit is further used for: receiving third indication information broadcasted from the network device, the third indication information being used to indicate a resource deviation between the first beam and the second beam; the resource deviation indicating a resource deviation of a common reference point of a resource block grid of the first beam and the second beam, or a resource deviation of a BWP starting position of the first beam and the second beam; the first beam and the second beam have different carrier bandwidths, or the first beam and the second beam have different BWPs; The processing unit is further configured to determine a first reference signal subsequence occupied by the terminal according to the third indication information and the resources allocated to the terminal.

24. The device according to any one of claims 20 to 23, characterized in that The first indication information is carried by the following signaling: System Information Block SIB, or Downlink Control Information DCI.

25. The device according to claim 24, characterized in that The transceiver unit is further used to receive fourth indication information broadcast from the network device, where the fourth indication information is used to indicate configuration parameters of the beam-level update period of the signaling.

26. The device according to claim 25, characterized in that The beam level update period of the signaling is determined by the following formula: m=M*D / N Wherein, m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam level update period factor; the value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is 32rf; the value of N is 2 L , where L is a positive integer.

27. The device according to claim 25, characterized in that The beam level update period of the signaling is determined by the following formula: m=M*D Wherein, m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam level update period factor; the value of M is 1 or 1 / 2 L ; The D indicates the beam-level paging cycle; the value of D is 32rf; or, The value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is at least one of the following: 1RF, 2RF, 4RF, 8RF, or 16RF.

28. The device according to any one of claims 20 to 27, characterized in that The first reference signal is a demodulation reference signal DMRS, or a channel state information reference signal CSI-RS, or a phase tracking reference signal PTRS.

29. The device according to any one of claims 20 to 28, characterized in that The first indication information is further used to indicate configuration information of a second reference signal corresponding to the first beam and second antenna port number information corresponding to the first beam.

30. A communication device, characterized in that: include: a processing unit, configured to determine first indication information, where the first indication information is used to indicate configuration information of a first reference signal corresponding to a first beam and first antenna port number information corresponding to the first beam, where the first beam provides a communication service for a terminal; A transceiver unit is used to broadcast the first indication information.

31. The device according to claim 30, characterized in that The transceiver unit is further used to broadcast second indication information, where the second indication information is used to instruct the terminal to determine a reference signal sequence according to a reference resource deviation; the reference resource is a common reference point of a resource block grid or a starting position of a BWP.

32. The device according to claim 30, characterized in that The processing unit is further configured to determine a resource deviation, where the resource deviation indicates a resource deviation of a common reference point of a resource block grid of the first beam and the second beam, or a resource deviation of a BWP starting position of the first beam and the second beam; the first beam and the second beam have different carrier bandwidths, or the first beam and the second beam have different BWPs; The transceiver unit is further used to broadcast third indication information, where the third indication information is used to indicate the resource deviation.

33. The device according to any one of claims 30 to 32, characterized in that The first indication information is carried by the following signaling: System Information Block SIB, or Downlink Control Information DCI.

34. The device according to claim 33, characterized in that The transceiver unit is further used to broadcast fourth indication information, where the fourth indication information is used to indicate configuration parameters of the beam-level update period of the signaling.

35. The device according to claim 34, characterized in that The beam level update period of the signaling is determined by the following formula: m=M*D / N Wherein, m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam level update period factor; the value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is 32rf; the value of N is 2 L , where L is a positive integer.

36. The device according to claim 34, characterized in that The beam level update period of the signaling is determined by the following formula: m=M*D Wherein, m indicates the update period; the unit of m is the number of radio frames rf; M indicates the beam level update period factor; the value of M is 1 or 1 / 2 L ; The D indicates the beam-level paging cycle; the value of D is 32rf; or, The value of M is 2 X1 , X1 is an integer greater than 1; D indicates the beam-level paging cycle; the value of D is at least one of the following: 1RF, 2RF, 4RF, 8RF, or 16RF.

37. The device according to any one of claims 30 to 36, characterized in that The first reference signal is a demodulation reference signal DMRS, or a channel state information reference signal CSI-RS, or a phase tracking reference signal PTRS.

38. The device according to any one of claims 30 to 37, characterized in that The first indication information is further used to indicate configuration information of a second reference signal corresponding to the first beam and second antenna port number information corresponding to the first beam.

39. A communication device, characterized in that: include: at least one processor and memory; The memory is used to store computer programs or instructions; The at least one processor is configured to execute the computer program or instruction so that the method according to any one of claims 1 to 19 is performed.

40. A chip system, characterized in that: The chip system comprises: a processing circuit; the processing circuit is coupled to a storage medium; The processing circuit is used to execute part or all of the computer programs or instructions in the storage medium, and when the part or all of the computer programs or instructions are executed, it is used to implement the method according to any one of claims 1 to 19.

41. A computer-readable storage medium, characterized in that The computer-readable storage medium stores instructions, and when the instructions are executed by a computer, the method according to any one of claims 1 to 19 is executed.

42. A computer program product comprising a computer program or instructions, characterized in that When it is run on a computer, the method described in any one of claims 1 to 19 is executed.

43. A communication system, characterized in that: The method comprises a terminal and a network device, wherein the terminal is used to execute the method according to any one of claims 1 to 10, and the network device is used to execute the method according to any one of claims 11 to 19.

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