Indication method, apparatus, and communication device of information of antenna port, and storage medium

Abstract

The embodiment of the disclosure provides a method for indicating information of a demodulation reference signal (DMRS) port, wherein the method is executed by an access network device, and the method comprises: sending indication information to a terminal; and wherein the indication information is used for indicating information of a DMRS port of a second type of DMRS. Here, since the indication information indicates the information of the DMRS port of the second type of DMRS, the terminal can determine the DMRS port according to the information of the DMRS port of the second type of DMRS indicated by the indication information after receiving the indication information. Compared with the case of only being able to determine the DMRS port of the first type of DMRS, the terminal can definitely determine the DMRS port of different antenna signal types when the DMRS port of the second type of DMRS exists, and the terminal can communicate by using the corresponding DMRS port. In this way, the adaptability is higher, and the wireless transmission based on the DMRS port is more reliable.

Description

Technical Field

[0001] This disclosure relates to, but is not limited to, the field of wireless communication technology, and particularly to a method, apparatus, communication device, and storage medium for indicating information at an antenna port. Background Technology

[0002] In related technologies, many networks support Coherent Joint Transmission (CJT) for Multiple Transmission Receive Points (mTRPs). CJT can support joint scheduling of more users, enabling Multi-User Multiple-Input Multiple-Output (MU-MIMO) with greater system gain compared to Non-Coherent Joint Transmission (NC-JT). In MU-MIMO, multiple demodulation reference signal (DMRS) ports are supported, requiring the network to indicate the DMRS port used to the user. Summary of the Invention

[0003] This disclosure provides a method, apparatus, communication device, and storage medium for indicating information at a demodulation reference signal (DMRS) port.

[0004] According to a first aspect of the present disclosure, a method for indicating information of a demodulation reference signal (DMRS) port is provided, wherein the method is performed by an access network device, the method comprising:

[0005] Send instruction information to the terminal;

[0006] The indication information is used to indicate the information of the DMRS port of the second type of DMRS.

[0007] According to a second aspect of the present disclosure, a method for indicating information of a demodulation reference signal (DMRS) port is provided, wherein the method is performed by a terminal, and the method includes:

[0008] Receive instruction information sent by access network devices;

[0009] The indication information is used to indicate the information of the DMRS port of the second type of DMRS.

[0010] According to a third aspect of the present disclosure, an indication device for information of a demodulation reference signal (DMRS) port is provided, wherein the device includes:

[0011] The sending module is configured to send indication information to the terminal;

[0012] The indication information is used to indicate the information of the DMRS port of the second type of DMRS.

[0013] According to a fourth aspect of the present disclosure, an indication device for information of a demodulation reference signal (DMRS) port is provided, wherein the device includes:

[0014] The receiving module is configured to receive indication information sent by the access network device;

[0015] The indication information is used to indicate the information of the DMRS port of the second type of DMRS.

[0016] According to a fifth aspect of the present disclosure, a communication device is provided, the communication device comprising:

[0017] processor;

[0018] Memory used to store the processor's executable instructions;

[0019] The processor is configured to implement the method described in any embodiment of this disclosure when running the executable instructions.

[0020] According to a sixth aspect of the present disclosure, a computer storage medium is provided, the computer storage medium storing a computer executable program, which, when executed by a processor, implements the methods described in any embodiment of the present disclosure.

[0021] In this embodiment of the disclosure, indication information is sent to the terminal; wherein, the indication information is used to indicate the information of the DMRS port of the second type of DMRS. Here, since the indication information indicates the information of the DMRS port of the second type of DMRS, after receiving the indication information, the terminal can determine the DMRS port according to the information of the DMRS port of the second type of DMRS indicated by the indication information. Compared with the case where only the DMRS port of the first type of DMRS can be determined, when the DMRS port of the second type of DMRS exists, the terminal can clearly determine the DMRS port of different antenna signal types and use the corresponding DMRS port for communication. Thus, the adaptability is stronger, making the wireless transmission based on the DMRS port more reliable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the structure of a wireless communication system according to an exemplary embodiment.

[0023] Figure 2This is a flowchart illustrating a method for indicating information about an antenna port according to an exemplary embodiment.

[0024] Figure 3 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0025] Figure 4 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0026] Figure 5 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0027] Figure 6 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0028] Figure 7 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0029] Figure 8 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0030] Figure 9 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0031] Figure 10 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0032] Figure 11 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0033] Figure 12 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0034] Figure 13 This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0035] Figure 14This is a flowchart illustrating a method for indicating information at a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0036] Figure 15 This is a schematic diagram illustrating an indication device for information of a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0037] Figure 16 This is a schematic diagram illustrating an indication device for information of a demodulation reference signal (DMRS) port according to an exemplary embodiment.

[0038] Figure 17 This is a schematic diagram of the structure of a terminal according to an exemplary embodiment.

[0039] Figure 18 This is a block diagram illustrating a base station according to an exemplary embodiment. Detailed Implementation

[0040] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this disclosure as detailed in the appended claims.

[0041] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0042] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0043] For the sake of brevity and ease of understanding, the terms “greater than” or “less than” are used in this document to characterize size relationships. However, it will be understood by those skilled in the art that the term “greater than” also includes the meaning of “greater than or equal to”, and “less than” also includes the meaning of “less than or equal to”.

[0044] Please refer to Figure 1 This illustration shows a schematic diagram of the structure of a wireless communication system provided in an embodiment of this disclosure. Figure 1 As shown, the wireless communication system is a communication system based on mobile communication technology. The wireless communication system may include: several user equipment 110 and several base stations 120.

[0045] User equipment 110 may be a device that provides voice and / or data connectivity to users. User equipment 110 may communicate with one or more core networks via a Radio Access Network (RAN). User equipment 110 may be an Internet of Things (IoT) user equipment, such as sensor devices, mobile phones, and computers with IoT user equipment capabilities. For example, it may be a fixed, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted device. Examples include a station (STA), subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment. Alternatively, user equipment 110 may also be a device from an unmanned aerial vehicle (UAV). Alternatively, user equipment 110 may also be a vehicle-mounted device, such as a vehicle computer with wireless communication capabilities, or a wireless user equipment connected to an external vehicle computer. Alternatively, user equipment 110 can also be a roadside device, such as a street light, traffic light, or other roadside device with wireless communication capabilities.

[0046] Base station 120 can be a network-side device in a wireless communication system. This wireless communication system can be a fourth-generation mobile communication (4G) system, also known as a Long Term Evolution (LTE) system; or it can be a 5G system, also known as a New Radio (NR) system; or it can be the next generation after 5G. In this case, the access network in the 5G system can be called NG-RAN (New Generation Radio Access Network).

[0047] The base station 120 can be an evolved NB (eNB) used in a 4G system. Alternatively, the base station 120 can also be a gNB (gNB) using a centralized-distributed architecture in a 5G system. When the base station 120 adopts a centralized-distributed architecture, it typically includes a central unit (CU) and at least two distributed units (DUs). The central unit is equipped with a protocol stack of the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the Media Access Control (MAC) layer; the distributed units are equipped with a physical (PHY) layer protocol stack. This disclosure does not limit the specific implementation of the base station 120.

[0048] Base station 120 and user equipment 110 can establish a wireless connection via a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as a new air interface; or, the wireless air interface can also be a wireless air interface based on a next-generation mobile communication network technology standard based on 5G.

[0049] In some embodiments, user equipment 110 can also establish E2E (End to End) connections. Examples include V2V (vehicle to vehicle), V2I (vehicle to Infrastructure), and V2P (vehicle to pedestrian) communication scenarios in vehicle-to-everything (V2X) communication.

[0050] Here, the user equipment mentioned above can be considered as the terminal equipment in the following embodiments.

[0051] In some embodiments, the wireless communication system described above may further include a network management device 130.

[0052] Several base stations 120 are connected to network management device 130. Network management device 130 can be a core network device in a wireless communication system, such as a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, it can be other core network devices, such as a Serving Gateway (SGW), a Public Data Network Gateway (PGW), a Policy and Charging Rules Function (PCRF), or a Home Subscriber Server (HSS). The implementation of network management device 130 is not limited in this embodiment.

[0053] To facilitate understanding by those skilled in the art, this disclosure provides multiple embodiments to clearly illustrate the technical solutions of the embodiments of this disclosure. Of course, those skilled in the art will understand that the multiple embodiments provided in this disclosure can be executed individually, or in combination with the methods of other embodiments in this disclosure, or individually or in combination with some methods in other related technologies; this disclosure does not limit these aspects.

[0054] To better understand the embodiments of this disclosure, the following description illustrates relevant scenarios of mTRP:

[0055] In one scenario implementation, MU-MIMO supports a maximum of 12 orthogonal DMRS ports. Since MU-MIMO will support more UEs in CJT (Continuous Junction Terminal) configurations, CJT needs to support more orthogonal DMRS ports.

[0056] In one embodiment, the DMRS port information of the Physical Downlink Shared Channel (PDSCH) scheduled by the Downlink Control Information (DCI) in format 1-1 or format 1-2 is indicated through the antenna port indication field of the DCI. The correspondence between the values ​​of the indication field and the DMRS port information is predefined. In one embodiment, please refer to Table 1 for the correspondence between the values ​​of the indication field and the DMRS ports when dmrs-Type = 1 and maxLength = 1.

[0057] Table 1:

[0058]

[0059]

[0060] It is understood that each element in Table 1 exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in Table 1. Therefore, those skilled in the art will understand that the value of each element in Table 1 is an independent embodiment. Furthermore, each row, each column, or any combination of element values ​​in the table can also be considered an independent embodiment.

[0061] It should be noted that the correspondence between the port indication field values ​​and DMRS port information in DCI format 1-1 or DCI format 1-2 does not apply to users adopting the newly introduced DMRS. For example, in related technologies, with protocol dmrs-Type=1 and maxLength=1, there are a maximum of 4 DMRS ports, while the newly introduced DMRS has 8 DMRS ports. When using DMRS mode, the correspondence in this table cannot be used to indicate ports to users.

[0062] Besides the scenarios mentioned in the above embodiments, in other scenarios, the original correspondence may be insufficient to indicate the required port. The technical solutions involved in this disclosure are not limited to the DMRS scenario, but can also be applied to all scenarios where the above situations exist.

[0063] like Figure 2 As shown, this embodiment provides a method for indicating antenna port information, wherein the method is executed by an access network device, and the method includes:

[0064] Step 21: Send instruction information to the terminal;

[0065] The indication information is used to indicate the information of the antenna port of the second type of antenna signal.

[0066] Here, the terminal involved in this disclosure may be, but is not limited to, a mobile phone, wearable device, vehicle terminal, roadside unit (RSU), smart home terminal, industrial sensing device and / or medical device, etc. In some embodiments, the terminal may be a Redcap terminal or a predetermined version of a New Radio (NR) terminal (e.g., an R17 NR terminal).

[0067] The access network equipment involved in this disclosure can be a base station, which can be of various types, such as a base station of a third-generation mobile communication (3G) network, a base station of a fourth-generation mobile communication (4G) network, a base station of a fifth-generation mobile communication (5G) network, or other evolved base stations.

[0068] In one embodiment, an indication message is sent to the terminal; wherein the indication message is used to indicate information about the antenna port for the second type of antenna signal used in CJT.

[0069] In one embodiment, the indication information is sent to the terminal via higher-layer signaling; wherein the indication information is used to indicate the antenna port information of the second type of antenna signal. The higher-layer signaling may be Radio Resource Control (RRC) signaling or Media Access Control (MAC) Control Element (CE) signaling, etc.

[0070] In one embodiment, the indication information is sent to the terminal via DCI; wherein the indication information is used to indicate information about the antenna port of the second type of antenna signal.

[0071] In one embodiment, indication information is sent to the terminal; wherein the indication information is used to indicate the antenna port information of the second type of antenna signal; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal.

[0072] In one embodiment, indication information is sent to the terminal; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; wherein, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is used to indicate the antenna port of the second type of antenna signal determined by the first relationship; the first relationship is one of the preset correspondences; wherein, the preset relationship includes the relationship between indication identifiers and antenna ports, and each indication identifier corresponds to an antenna port; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal.

[0073] In one embodiment, the number of DMRS ports supported by the second type of DMRS is N times the number of DMRS ports supported by the first type of DMRS. For example, N = 2, meaning that the second type of DMRS supports twice the number of DMRS ports as the first type of DMRS, representing an enhancement over the number of DMRS ports supported by the first type of DMRS, where N is a real number greater than 1.

[0074] In one embodiment, indication information is sent to the terminal; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; wherein, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the antenna port information of the second type of antenna signal according to the antenna port in the first relationship corresponding to the first indication identifier and the offset; the first relationship is one of the preset correspondences; wherein the preset relationship includes the relationship between indication identifiers and antenna ports, each indication identifier corresponding to an antenna port; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal.

[0075] In one embodiment, indication information is sent to the terminal; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; wherein, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is an offset value, the offset being used to indicate that: the terminal determines the antenna port information of the second type of antenna signal according to the antenna port in the first relationship corresponding to the first indication identifier and the offset; the first relationship is one of the preset correspondences; wherein the preset relationship includes the relationship between indication identifiers and antenna ports, each indication identifier corresponding to an antenna port; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal; the first relationship is used to indicate one or more antenna ports.

[0076] In one embodiment, indication information is sent to a terminal; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; wherein, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the antenna port information of the second type of antenna signal according to the antenna port in the first relationship corresponding to the first indication identifier and the offset; the first relationship is one of the preset correspondences; wherein the preset relationship includes the relationship between indication identifiers and antenna ports, each indication identifier corresponding to an antenna port; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal; the first relationship is used to indicate one or more antenna ports; wherein, the second indication identifier is a first offset, the first offset being used to indicate that the terminal determines the antenna port of the second type of antenna signal according to the antenna port in the first relationship corresponding to the first indication identifier and the first offset; and / or, the second indication identifier is a second offset, the second offset being used to indicate that the terminal determines the antenna port of the second type of antenna signal according to the antenna port in the first relationship corresponding to the first indication identifier and the second offset.

[0077] In one embodiment, the signaling carrying the first indication information and the second indication information is the same, and the signaling includes a first indication identifier and a second indication identifier.

[0078] In one embodiment, the signaling carrying the first indication information and the second indication information are different, and the first indication identifier and the second indication identifier are carried by different signaling.

[0079] In one embodiment, indication information is sent to a terminal; wherein the indication information is used to indicate information about the antenna port of a second type of antenna signal; the indication information includes a first indication identifier; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes the relationship between the indication identifier and the antenna port, each indication identifier corresponding to an antenna port; the preset relationship includes at least the relationship between the first type of antenna signal and the antenna port, and the relationship between the second type of antenna signal and the antenna port; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal; the first relationship is used to indicate one or more antenna ports;

[0080] For example, the antenna signal is DMRS, the first type of antenna signal is a first type of DMRS, the second type of antenna signal is a second type of DMRS, and the antenna port is a DMRS port.

[0081] In this embodiment of the disclosure, indication information is sent to the terminal; wherein, the indication information is used to indicate the antenna port information of the second type of antenna signal. Here, since the indication information indicates the antenna port information of the second type of antenna signal, after receiving the indication information, the terminal can determine the antenna port based on the antenna port information of the second type of antenna signal indicated by the indication information. Compared with the case where only the antenna port of the first type of antenna signal can be determined, when the antenna port of the second type of antenna signal exists, the terminal can clearly determine the antenna port of different antenna signal types and use the corresponding antenna port for communication. Thus, it is more adaptable and makes wireless transmission based on antenna port more reliable.

[0082] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0083] like Figure 3 As shown, this embodiment provides a method for indicating information of a demodulation reference signal (DMRS) port, wherein the method is executed by an access network device, and the method includes:

[0084] Step 31: Send instruction information to the terminal;

[0085] The indication information is used to indicate the information of the DMRS port of the second type of DMRS.

[0086] In one embodiment, an indication message is sent to the terminal; wherein the indication message is used to indicate information about the DMRS port for the second type of DMRS used in CJT.

[0087] In one embodiment, the indication information is sent to the terminal via higher-layer signaling; wherein the indication information is used to indicate information about the DMRS port of the second type of DMRS. The higher-layer signaling may be Radio Resource Control (RRC) signaling or Media Access Control (MAC) Control Element (CE) signaling, etc.

[0088] In one embodiment, the indication information is sent to the terminal via DCI; wherein the indication information is used to indicate information about the DMRS port of the second type of DMRS.

[0089] In one embodiment, indication information is sent to the terminal; wherein the indication information is used to indicate the information of the DMRS port of the second type of DMRS; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0090] In one embodiment, indication information is sent to the terminal; wherein the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; wherein the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is used to indicate that the DMRS port of the second type of DMRS is determined through the first relationship; the first relationship is one of the preset correspondences; wherein the preset relationship includes the relationship between indication identifiers and DMRS ports, and each indication identifier corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0091] In one embodiment, the number of DMRS ports supported by the second type of DMRS is N times the number of DMRS ports supported by the first type of DMRS. For example, N=2, meaning that the second type of DMRS supports twice the number of DMRS ports as the first type of DMRS, representing an enhancement over the number of DMRS ports supported by the first type of DMRS.

[0092] Please refer to Table 1 again. The preset correspondence can be the relationship between the indication value and the DMRS port shown in Table 1. The first relationship can be the relationship between the indication value and the corresponding DMRS port determined from the preset correspondence based on the indication value. For example, the relationship between the indication value "10" and the corresponding DMRS port numbers 0, 1, 2, and 3.

[0093] In one embodiment, the port numbers of the DMRS ports of the first type of DMRS are 0, 1, 2 and 3, and the port numbers of the DMRS ports of the second type of DMRS are 0, 1, 2, 3, 4, 5, 6 and 7.

[0094] In one embodiment, indication information is sent to the terminal; wherein the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the DMRS port information of the second type of DMRS based on the DMRS port in the first relationship corresponding to the first indication identifier and the offset; wherein the first indication identifier is used to indicate the first relationship in the preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0095] In one embodiment, indication information is sent to the terminal; wherein the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the DMRS port information of the second type of DMRS based on the DMRS port in the first relationship corresponding to the first indication identifier and the offset; wherein the first indication identifier is used to indicate the first relationship in the preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the first relationship is used to indicate one or more DMRS ports of the first type of DMRS; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0096] For example, please see Figure 4 The preset relationship is the relationship between the indicator value in Table 1 and the DMRS port of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicator indicates "10", then the first indicator indicates the first relationship between "10" and ports {0, 1, 2, 3}. If the second indicator indicates "2", that is, an offset of 2 is performed, and the DMRS port of the second type of DMRS obtained after the offset is {2, 3, 4, 5}.

[0097] In one embodiment, indication information is sent to a terminal; wherein the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the DMRS port information of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indication identifier and the offset; wherein the first indication identifier is used to indicate the first relationship in the preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the relationship between indication identifiers and DMRS ports, each indication identifier corresponding to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the first relationship is used to indicate one or more DMRS ports; wherein the second indication identifier is a first offset, the first offset being used to indicate that the terminal determines the DMRS port of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indication identifier and the first offset; and / or, the second indication identifier is a second offset, the second offset being used to indicate that the terminal determines the DMRS port of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indication identifier and the second offset.

[0098] In one embodiment, at least two DMRS ports of the first type of DMRS have different offset values.

[0099] For example, please see Figure 4 The preset relationship is the relationship between the indicated values ​​in Table 1 and the DMRS ports of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicator indicates "10", then the first indicator indicates the first relationship between "10" and ports {0, 1, 2, 3}. If the second indicator indicates a first offset "4" and a second offset "5", where the first offset is the offset value for ports 0, 1, and 2, and the second offset is the offset value for port 3, then after performing the offset, the DMRS ports of the second type of DMRS obtained after the offset are {4, 5, 6, 8}.

[0100] In one embodiment, the offset value is determined based on the code division multiplexing (CDM) group in which the DMRS port of the first type of DMRS is located.

[0101] In one embodiment, the offset value is determined based on the code division multiplexing (CDM) group used by the DMRS port of the first type of DMRS.

[0102] For example, please see Figure 4 The preset relationship is the relationship between the indicated values ​​in Table 1 and the DMRS ports of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicated identifier indicates "10", then the first indicated identifier "10" indicates a first relationship between ports {0, 1, 2}. If the second indicated identifier indicates a first offset, for example, "0", and a second offset, for example, "1", where the first offset is the offset value of ports 0 and 1 in the same CDM group, and the second offset is the offset value of port 2 in another CDM group, after performing the offset, the DMRS ports of the second type of DMRS obtained after the offset are {0, 1, 3}.

[0103] In one embodiment, the signaling carrying the first indication information and the second indication information is the same, and the signaling includes a first indication identifier and a second indication identifier.

[0104] In one embodiment, the signaling carrying the first indication information and the second indication information are different, and the first indication identifier and the second indication identifier are carried by different signaling.

[0105] In one embodiment, indication information is sent to a terminal; wherein a first relationship is used to indicate one or more DMRS ports; the indication information includes a first indication identifier; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes a relationship between the indication identifier and a DMRS port, with each indication identifier corresponding to a DMRS port; the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port; the second type of DMRS supports a greater number of DMRS ports than the first type of DMRS supports.

[0106] For example, please refer to Table 2. The relationship between the first type of DMRS and the DMRS port can be indicated by the value 0 to 12, and the relationship between the second type of DMRS and the DMRS port can be indicated by the value 0 to X.

[0107] Table 2

[0108]

[0109]

[0110] It is understandable that the second table is an extended table based on the first table.

[0111] It is understood that each element in Table 2 exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of any other element value in Table 1. Therefore, those skilled in the art will understand that the value of each element in Table 1 is an independent embodiment, and furthermore, each row, each column, or any combination of element values ​​in the table can also be considered an independent embodiment.

[0112] In this embodiment, indication information is sent to the terminal; wherein, the indication information is used to indicate the information of the DMRS port of the second type of DMRS. Here, since the indication information indicates the information of the DMRS port of the second type of DMRS, after receiving the indication information, the terminal can determine the DMRS port according to the information of the DMRS port of the second type of DMRS indicated by the indication information. Compared with the case where only the DMRS port of the first type of DMRS can be determined, when the DMRS port of the second type of DMRS exists, the terminal can clearly determine the DMRS port of different antenna signal types and use the corresponding DMRS port for communication. Thus, it is more adaptable and makes the wireless transmission based on the DMRS port more reliable. In addition, in this embodiment, on the one hand, the correspondence between the indication value of the first type of DMRS and the DMRS port can be partially reused, reducing the complexity of the design. On the other hand, it can better support the switching between the first type of DMRS and the second type of DMRS, and can indicate the appropriate DMRS mapping method to the user according to the actual channel conditions.

[0113] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0114] like Figure 5 As shown, this embodiment provides a method for indicating information of a demodulation reference signal (DMRS) port, wherein the method is executed by an access network device, and the method includes:

[0115] Step 51: Send instruction information to the terminal;

[0116] Wherein, the indication information is used to indicate the information of the DMRS port of the second type of DMRS; the indication information includes second indication information; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the information of the DMRS port of the second type of DMRS according to the DMRS port and offset in the first relationship; the first relationship is one of the preset correspondence relationships; the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0117] In one embodiment, the DMRS port is used for CJT.

[0118] In one embodiment, the preset correspondence may be sent over the network, defined by a protocol, or pre-configured.

[0119] In one embodiment, indication information is sent to the terminal; wherein the indication information is used to indicate the information of the DMRS port of the second type of DMRS; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the information of the DMRS port of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indication identifier and the offset; wherein the first indication identifier is used to indicate the first relationship in the preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0120] In one embodiment, indication information is sent to the terminal; wherein the indication information is used to indicate information about the DMRS port of the second type of DMRS; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the information about the DMRS port of the second type of DMRS based on the DMRS port in the first relationship corresponding to the first indication identifier and the offset; wherein the first indication identifier is used to indicate a first relationship in a preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the first relationship is used to indicate one or more DMRS ports of the first type of DMRS; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0121] For example, please see Figure 4 The preset relationship is the relationship between the indicator value in Table 1 and the DMRS port of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicator indicates "10", then the first indicator indicates the first relationship between "10" and ports {0, 1, 2, 3}. If the second indicator indicates "2", that is, an offset of 2 is performed, and the DMRS port of the second type of DMRS obtained after the offset is {2, 3, 4, 5}.

[0122] In one embodiment, indication information is sent to the terminal; wherein the indication information is used to indicate information about the DMRS port of the second type of DMRS; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the information about the DMRS port of the second type of DMRS based on the DMRS port and offset in the first relationship corresponding to the first indication identifier; wherein the first indication identifier is used to indicate a first relationship in a preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the indication identifier and the DMRS port The relationship between the two types of DMRS is as follows: each indicator corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the first relationship is used to indicate one or more DMRS ports; wherein, the second indicator is a first offset, and the first offset is used to instruct the terminal to determine the DMRS port of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indicator and the first offset; and / or, the second indicator is a second offset, and the second offset is used to instruct the terminal to determine the DMRS port of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indicator and the second offset.

[0123] In one embodiment, at least two DMRS ports of the first type of DMRS have different offset values.

[0124] For example, please see Figure 4 The preset relationship is the relationship between the indicated values ​​in Table 1 and the DMRS ports of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicated identifier indicates "10", then the first indicated identifier "10" indicates the first relationship between ports {0, 1, 2, 3}. If the second indicated identifier indicates a first offset, for example, "4", and a second offset, for example, "5", where the first offset is the offset value of ports 0, 1, and 2, and the second offset is the offset value of port 3, then after performing the offset, the DMRS ports of the second type of DMRS obtained after the offset are {4, 5, 6, 8}.

[0125] In one embodiment, the offset value is determined based on the code division multiplexing (CDM) group to which the DMRS port of the first type of DMRS belongs.

[0126] For example, please see Figure 4The preset relationship is the relationship between the indicated values ​​in Table 1 and the DMRS ports of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicated identifier indicates "10", then the first indicated identifier "10" indicates the first relationship between ports {0, 1, 2}. If the second indicated identifier indicates a first offset, for example, "0", and a second offset, for example, "1", where the first offset is the offset value of ports 0 and 1 in the same CDM group, and the second offset is the offset value of port 2 in another CDM group, after performing the offset, the DMRS ports of the second type of DMRS obtained after the offset are {0, 1, 3}.

[0127] In one embodiment, the signaling carrying the first indication information and the second indication information is the same, and the signaling includes a first indication identifier and a second indication identifier.

[0128] In one embodiment, the signaling carrying the first indication information and the second indication information are different, and the first indication identifier and the second indication identifier are carried by different signaling.

[0129] In this embodiment, indication information is sent to the terminal; wherein, the indication information includes second indication information; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the DMRS port information of the second type of DMRS based on the DMRS port in the first relationship and the offset; the first relationship is one of the preset correspondence relationships; the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS. Here, since the indication information indicates an offset value, after receiving the indication information, the terminal can determine the DMRS port of the second type of DMRS based on the offset value indicated by the indication information and the first relationship. Compared to the case where only the DMRS port of the first type of DMRS can be determined, when the DMRS port of the second type of DMRS exists, the terminal can clearly determine the DMRS port of different antenna signal types and use the corresponding DMRS port for communication. Thus, the adaptability is stronger, making the wireless transmission based on the DMRS port more reliable.

[0130] Furthermore, in this embodiment of the disclosure, on the one hand, reusing the first relationship can reduce the complexity of the design; on the other hand, it enhances the flexibility of port indication when reusing the first relationship, enabling the allocation of appropriate ports for users in MU-MIMO, and ensuring the system performance and / or throughput of MU-MIMO.

[0131] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0132] like Figure 6 As shown, this embodiment provides a method for indicating information of a demodulation reference signal (DMRS) port, wherein the method is executed by an access network device, and the method includes:

[0133] Step 61: Send instruction information to the terminal;

[0134] Wherein, the indication information is used to indicate the DMRS port information of the second type of DMRS; the indication information includes second indication information; the second indication information includes a second indication identifier; the second indication identifier is a first offset, the first offset is used to instruct the terminal to determine the DMRS port of the second type of DMRS according to the DMRS port in the first relationship and the first offset; and / or, the second indication identifier is a second offset, the second offset is used to instruct the terminal to determine the DMRS port of the second type of DMRS according to the DMRS port in the first relationship and the second offset; the first relationship is one of the preset correspondence relationships; the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0135] It should be noted that the first relationship can be stored in the terminal beforehand.

[0136] For details on step 61, please refer to the relevant explanations in step 51; they will not be repeated here.

[0137] In this disclosure, upon receiving the instruction information, the DMRS port of the second type of DMRS can be determined based on the second instruction identifier and the first relationship.

[0138] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0139] like Figure 7 As shown, this embodiment provides a method for indicating information of a demodulation reference signal (DMRS) port, wherein the method is executed by an access network device, and the method includes:

[0140] Step 71: Send instruction information to the terminal;

[0141] The indication information includes a first indication identifier; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, and each indication identifier corresponds to a DMRS port; the preset relationship includes at least the relationship between a first type of DMRS and a DMRS port, and the relationship between a second type of DMRS and a DMRS port; the first relationship is used to indicate the DMRS port of one or more DMRS; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0142] It should be noted that after sending the indication information to the terminal, the access network device may also send a second indication identifier to the terminal. This second indication identifier indicates mapping type information, which indicates whether the DMRS port indicated by the first indication identifier uses the radio resources of a DMRS port of the first type of DMRS or a DMRS port of the second type of DMRS. This information is used to indicate whether the DMRS port is a port of the first type of DMRS or a port of the second type of DMRS. Of course, the mapping type information may also be sent along with the indication information; this is not limited here.

[0143] In one embodiment, indication information is sent to a terminal; wherein the indication information includes a first indication identifier and a second indication identifier, the second indication identifier indicating mapping type information; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes a relationship between indication identifiers and DMRS ports, each indication identifier corresponding to a DMRS port; the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port; the first relationship is used to indicate one or more DMRS ports; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the first type of DMRS or the radio resources of the DMRS port of the second type of DMRS.

[0144] In one embodiment, the DMRS port is used for CJT.

[0145] In one embodiment, indication information is sent to the terminal; the indication information includes a first indication identifier and a second indication identifier, the second indication identifier indicating mapping type information; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes a relationship between indication identifiers and DMRS ports, each indication identifier corresponding to a DMRS port; the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port; the first relationship is used to indicate one or more DMRS ports; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the first type of DMRS. At this time, the DMRS port determined based on the preset relationship is a first type of DMRS and a DMRS port.

[0146] In one embodiment, indication information is sent to the terminal; the indication information includes a first indication identifier and mapping type information; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes a relationship between the indication identifier and a DMRS port, with each indication identifier corresponding to a DMRS port; the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port; the first relationship is used to indicate one or more DMRS ports; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the second type of DMRS. In this case, the DMRS port determined based on the preset relationship is a second type of DMRS and a DMRS port.

[0147] In this embodiment, instruction information is sent to the terminal; the instruction information includes a first instruction identifier; the first instruction identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes the relationship between the instruction identifier and a DMRS port, with each instruction identifier corresponding to a DMRS port; the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port; the first relationship is used to indicate one or more DMRS ports; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS. Since the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port, after receiving the instruction information, the terminal can determine the DMRS port of the second type of DMRS based on the relationship between the first type of DMRS and the DMRS port indicated by the preset relationship, and the relationship between the second type of DMRS and the DMRS port.

[0148] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0149] like Figure 8 As shown, this embodiment provides a method for indicating information of a demodulation reference signal (DMRS) port, wherein the method is executed by an access network device, and the method includes:

[0150] Step 81: Send instruction information to the terminal;

[0151] The indication information includes a first indication identifier and a second indication identifier, the second indication identifier indicating mapping type information; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the preset relationship includes at least the relationship between a first type of DMRS and a DMRS port, and the relationship between a second type of DMRS and a DMRS port; the first relationship is used to indicate one or more DMRS ports; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the first type of DMRS or the radio resources of the DMRS port of the second type of DMRS.

[0152] In one embodiment, the DMRS port is used for CJT.

[0153] In one embodiment, indication information is sent to the terminal; the indication information includes a first indication identifier and a second indication identifier, the second indication identifier indicating mapping type information; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes a relationship between indication identifiers and DMRS ports, each indication identifier corresponding to a DMRS port; the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port; the first relationship is used to indicate one or more DMRS ports; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the first type of DMRS. In this case, the DMRS port determined based on the preset relationship is a first type of DMRS and a DMRS port.

[0154] In one embodiment, indication information is sent to the terminal; the indication information includes a first indication identifier and a second indication identifier, the second indication identifier indicating mapping type information; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes a relationship between indication identifiers and DMRS ports, each indication identifier corresponding to a DMRS port; the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port; the first relationship is used to indicate one or more DMRS ports; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the second type of DMRS. In this case, the DMRS port determined based on the preset relationship is a second type of DMRS and a DMRS port.

[0155] In this embodiment, indication information is sent to the terminal. The indication information includes a first indication identifier and a second indication identifier, the second indication identifier indicating mapping type information. The first indication identifier instructs the terminal to determine a first relationship from a preset relationship. The preset relationship includes a relationship between the indication identifier and a DMRS port, with each indication identifier corresponding to a DMRS port. The preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port. The first relationship indicates one or more DMRS ports. The number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS. The mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of either the DMRS port of the first type of DMRS or the radio resources of the DMRS port of the second type of DMRS. Since the preset relationship includes at least the relationship between a first type of DMRS and a DMRS port, and the relationship between a second type of DMRS and a DMRS port, and the mapping type information indicates the radio resources of the DMRS port of the first type of DMRS or the radio resources of the DMRS port of the second type of DMRS, the terminal, upon receiving the indication information, can determine whether the DMRS port is a first type of DMRS port or a second type of DMRS port based on the preset relationship and the mapping type information. Furthermore, in this embodiment, on the one hand, the correspondence between the indication value of the first type of DMRS and the DMRS port can be partially reused, reducing design complexity. On the other hand, it better supports the switching between the first type of DMRS and the second type of DMRS, and can indicate the appropriate DMRS mapping method to the user according to the actual channel conditions.

[0156] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0157] It should be noted that the indication information can indicate at least one of the following information in the above embodiments: first indication identification information, second indication identification information, and mapping type information. That is, the indication information can indicate one or more combinations of the first indication identification information, second indication identification information, and mapping type information. Furthermore, when the indication information only indicates a portion of the first indication identification information, second indication identification information, and mapping type information, the remaining information can be indicated by other information besides the indication information (which can also be understood as being carried by other signaling besides the signaling carrying the indication information), and this is not limited here.

[0158] like Figure 9As shown, this embodiment provides a method for indicating antenna port information, wherein the method is executed by a terminal, and the method includes:

[0159] Step 91: Receive the instruction information sent by the access network device;

[0160] The indication information is used to indicate the information of the antenna port of the second type of antenna signal.

[0161] Here, the terminal involved in this disclosure may be, but is not limited to, a mobile phone, wearable device, vehicle terminal, roadside unit (RSU), smart home terminal, industrial sensing device and / or medical device, etc. In some embodiments, the terminal may be a Redcap terminal or a predetermined version of a New Radio (NR) terminal (e.g., an R17 NR terminal).

[0162] The access network equipment involved in this disclosure can be a base station, which can be of various types, such as a base station of a third-generation mobile communication (3G) network, a base station of a fourth-generation mobile communication (4G) network, a base station of a fifth-generation mobile communication (5G) network, or other evolved base stations.

[0163] In one embodiment, an indication message sent by an access network device is received; wherein the indication message is used to indicate information about the antenna port for the second type of antenna signal used in CJT.

[0164] In one embodiment, indication information sent by the access network device is received via higher-layer signaling; wherein the indication information is used to indicate information about the antenna port of the second type of antenna signal. The higher-layer signaling may be Radio Resource Control (RRC) signaling or Media Access Control (MAC) Control Element (CE) signaling, etc.

[0165] In one embodiment, an indication message sent by an access network device is received via DCI; wherein the indication message is used to indicate information about the antenna port of a second type of antenna signal.

[0166] In one embodiment, an indication message sent by an access network device is received; wherein the indication message is used to indicate information about the antenna ports of a second type of antenna signal; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal.

[0167] In one embodiment, an indication message sent by an access network device is received; the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; wherein, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is used to indicate the antenna port for determining the second type of antenna signal through the first relationship; the first relationship is one of the preset correspondences; wherein, the preset relationship includes the relationship between indication identifiers and antenna ports, and each indication identifier corresponds to an antenna port; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal.

[0168] In one embodiment, the number of DMRS ports supported by the second type of DMRS is N times the number of DMRS ports supported by the first type of DMRS. For example, N = 2, meaning that the second type of DMRS supports twice the number of DMRS ports as the first type of DMRS, representing an enhancement over the number of DMRS ports supported by the first type of DMRS, where N is a real number greater than 1.

[0169] In one embodiment, an indication message sent by an access network device is received; the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; wherein, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the antenna port information of the second type of antenna signal according to the antenna port in the first relationship corresponding to the first indication identifier and the offset; the first relationship is one of the preset correspondences; wherein the preset relationship includes the relationship between indication identifiers and antenna ports, each indication identifier corresponding to an antenna port; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal.

[0170] In one embodiment, an indication message sent by an access network device is received; the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; wherein, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is an offset value, the offset being used to indicate that: the terminal determines the antenna port information of the second type of antenna signal according to the antenna port in the first relationship corresponding to the first indication identifier and the offset; the first relationship is one of the preset correspondences; wherein the preset relationship includes the relationship between the indication identifier and the antenna port, each indication identifier corresponding to an antenna port; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal; the first relationship is used to indicate the antenna ports of one or more first type of antenna signals.

[0171] In one embodiment, an indication message sent by an access network device is received; the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; wherein, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the antenna port information of the second type of antenna signal according to the antenna port in the first relationship corresponding to the first indication identifier and the offset; the first relationship is one of the preset correspondences; wherein the preset relationship includes the relationship between indication identifiers and antenna ports, each indication identifier corresponding to an antenna port; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal; the first relationship is used to indicate one or more antenna ports; wherein, the second indication identifier is a first offset, the first offset being used to indicate that the terminal determines the antenna port of the second type of antenna signal according to the antenna port in the first relationship corresponding to the first indication identifier and the first offset; and / or, the second indication identifier is a second offset, the second offset being used to indicate that the terminal determines the antenna port of the second type of antenna signal according to the antenna port in the first relationship corresponding to the first indication identifier and the second offset.

[0172] In one embodiment, the signaling carrying the first indication information and the second indication information is the same, and the signaling includes a first indication identifier and a second indication identifier.

[0173] In one embodiment, the signaling carrying the first indication information and the second indication information are different, and the first indication identifier and the second indication identifier are carried by different signaling.

[0174] In one embodiment, an indication message sent by an access network device is received; wherein the indication message is used to indicate information about the antenna port of a second type of antenna signal; the indication message includes a first indication identifier; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes a relationship between the indication identifier and the antenna port, each indication identifier corresponding to an antenna port; the preset relationship includes at least a relationship between the first type of antenna signal and the antenna port, and a relationship between the second type of antenna signal and the antenna port; the number of antenna ports supported by the second type of antenna signal is greater than the number of antenna ports supported by the first type of antenna signal; the first relationship is used to indicate one or more antenna ports;

[0175] For example, the antenna signal is DMRS, the first type of antenna signal is a first type of DMRS, the second type of antenna signal is a second type of DMRS, and the antenna port is a DMRS port.

[0176] In this embodiment of the disclosure, an indication message sent by an access network device is received; wherein the indication message is used to indicate the antenna port information of a second type of antenna signal. Here, since the indication message indicates the antenna port information of the second type of antenna signal, after receiving the indication message, the terminal can determine the antenna port based on the antenna port information of the second type of antenna signal indicated by the indication message. Compared to the case where only the antenna port of the first type of antenna signal can be determined, when the antenna port of the second type of antenna signal exists, the terminal can clearly determine the antenna port of different antenna signal types and use the corresponding antenna port for communication. This provides greater adaptability and makes wireless transmission based on antenna ports more reliable.

[0177] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0178] like Figure 10 As shown, this embodiment provides a method for indicating information of the demodulation reference signal (DMRS) port, wherein the method is executed by a terminal, and the method includes:

[0179] Step 101: Receive the indication information sent by the access network device;

[0180] The indication information is used to indicate the information of the DMRS port of the second type of DMRS.

[0181] In one embodiment, an indication message is sent to the terminal; wherein the indication message is used to indicate information about the DMRS port for the second type of DMRS used in CJT.

[0182] In one embodiment, indication information sent by the access network device is received via higher-layer signaling; wherein the indication information is used to indicate information about the DMRS port of the second type of DMRS. The higher-layer signaling may be Radio Resource Control (RRC) signaling or Media Access Control (MAC) Control Element (CE) signaling, etc.

[0183] In one embodiment, an indication message sent by an access network device is received via DCI; wherein the indication message is used to indicate information about the DMRS port of the second type of DMRS.

[0184] In one embodiment, an indication message sent by an access network device is received; wherein the indication message is used to indicate information about the DMRS port of the second type of DMRS; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0185] In one embodiment, an indication message sent by an access network device is received; wherein the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; wherein the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is used to indicate that the DMRS port of the second type of DMRS is determined through the first relationship; the first relationship is one of the preset correspondences; wherein the preset relationship includes the relationship between indication identifiers and DMRS ports, and each indication identifier corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0186] In one embodiment, the number of DMRS ports supported by the second type of DMRS is N times the number of DMRS ports supported by the first type of DMRS. For example, N=2, meaning that the second type of DMRS supports twice the number of DMRS ports as the first type of DMRS, representing an enhancement over the number of DMRS ports supported by the first type of DMRS.

[0187] Please refer to Table 1 again. The preset correspondence can be the relationship between the indication value and the DMRS port shown in Table 1. The first relationship can be the relationship between the indication value and the corresponding DMRS port determined from the preset correspondence based on the indication value. For example, the relationship between the indication value "10" and the corresponding DMRS port numbers 0, 1, 2, and 3.

[0188] In one embodiment, the port numbers of the DMRS ports of the first type of DMRS are 0, 1, 2 and 3, and the port numbers of the DMRS ports of the second type of DMRS are 0, 1, 2, 3, 4, 5, 6 and 7.

[0189] In one embodiment, an indication message sent by an access network device is received; wherein the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the DMRS port information of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indication identifier and the offset; wherein the first indication identifier is used to indicate the first relationship in the preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0190] In one embodiment, an indication message sent by an access network device is received; wherein the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the DMRS port information of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indication identifier and the offset; wherein the first indication identifier is used to indicate the first relationship in the preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the first relationship is used to indicate one or more DMRS ports of the first type of DMRS; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0191] For example, please see Figure 4 The preset relationship is the relationship between the indicator value in Table 1 and the DMRS port of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicator indicates "10", then the first indicator indicates the first relationship between "10" and ports {0, 1, 2, 3}. If the second indicator indicates "2", that is, an offset of 2 is performed, and the DMRS port of the second type of DMRS obtained after the offset is {2, 3, 4, 5}.

[0192] In one embodiment, an indication message sent by an access network device is received; wherein the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the DMRS port information of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indication identifier and the offset; wherein the first indication identifier is used to indicate the first relationship in the preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the first relationship is used to indicate one or more DMRS ports; wherein the second indication identifier is a first offset, the first offset being used to indicate that the terminal determines the DMRS port of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indication identifier and the first offset; and / or, the second indication identifier is a second offset, the second offset being used to indicate that the terminal determines the DMRS port of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indication identifier and the second offset.

[0193] In one embodiment, at least two DMRS ports of the first type of DMRS have different offset values.

[0194] For example, please see Figure 4 The preset relationship is the relationship between the indicated values ​​in Table 1 and the DMRS ports of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicator indicates "10", then the first indicator indicates the first relationship between "10" and ports {0, 1, 2, 3}. If the second indicator indicates a first offset "4" and a second offset "5", where the first offset is the offset value for ports 0, 1, and 2, and the second offset is the offset value for port 3, then after performing the offset, the DMRS ports of the second type of DMRS obtained after the offset are {4, 5, 6, 8}.

[0195] In one embodiment, the offset value is determined based on the code division multiplexing (CDM) group in which the DMRS port of the first type of DMRS is located.

[0196] In one embodiment, the offset value is determined based on the code division multiplexing (CDM) group used by the DMRS port of the first type of DMRS.

[0197] For example, please see Figure 4 The preset relationship is the relationship between the indicated values ​​in Table 1 and the DMRS ports of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicated identifier indicates "10", then the first indicated identifier "10" indicates a first relationship with ports {0, 1, 2}. If the second indicated identifier indicates a first offset, for example, "0", and a second offset, for example, "1", where the first offset is the offset value of ports 0 and 1 in the same CDM group, and the second offset is the offset value of port 2 in another CDM group, after performing the offset, the DMRS ports of the second type of DMRS obtained after the offset are {0, 1, 3}.

[0198] In one embodiment, the signaling carrying the first indication information and the second indication information is the same, and the signaling includes a first indication identifier and a second indication identifier.

[0199] In one embodiment, the signaling carrying the first indication information and the second indication information are different, and the first indication identifier and the second indication identifier are carried by different signaling.

[0200] In one embodiment, an indication message sent by an access network device is received; wherein, a first relationship is used to indicate one or more DMRS ports; the indication message includes a first indication identifier; the first indication identifier is used to instruct the terminal to determine the first relationship from a preset relationship; wherein the preset relationship includes a relationship between the indication identifier and the DMRS port, and each indication identifier corresponds to a DMRS port; the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0201] For example, please refer to Table 2. The relationship between the first type of DMRS and the DMRS port can be indicated by the value 0 to 12, and the relationship between the second type of DMRS and the DMRS port can be indicated by the value 0 to X.

[0202] It is understood that each element in Table 1 exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in Table 1. Therefore, those skilled in the art will understand that the value of each element in Table 1 is an independent embodiment.

[0203] In this embodiment, an indication message sent by an access network device is received; wherein the indication message is used to indicate information about the DMRS port of the second type of DMRS. Here, since the indication message indicates the information about the DMRS port of the second type of DMRS, after receiving the indication message, the terminal can determine the DMRS port based on the information about the DMRS port of the second type of DMRS indicated by the indication message. Compared to the case where only the DMRS port of the first type of DMRS can be determined, when the DMRS port of the second type of DMRS exists, the terminal can clearly determine the DMRS port for different antenna signal types and use the corresponding DMRS port for communication. This provides greater adaptability and makes wireless transmission based on DMRS ports more reliable. Furthermore, in this embodiment, on the one hand, the correspondence between the indication value of the first type of DMRS and the DMRS port can be partially reused, reducing design complexity. On the other hand, it better supports the switching between the first type of DMRS and the second type of DMRS, and can indicate a suitable DMRS mapping method to the user according to the actual channel conditions.

[0204] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0205] like Figure 11 As shown, this embodiment provides a method for indicating information of the demodulation reference signal (DMRS) port, wherein the method is executed by a terminal, and the method includes:

[0206] Step 111: Receive the indication information sent by the access network device;

[0207] Wherein, the indication information is used to indicate the information of the DMRS port of the second type of DMRS; the indication information includes second indication information; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the information of the DMRS port of the second type of DMRS according to the DMRS port and offset in the first relationship; the first relationship is one of the preset correspondence relationships; the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0208] In one embodiment, the DMRS port is used for CJT.

[0209] In one embodiment, the preset correspondence may be sent over the network, defined by a protocol, or pre-configured.

[0210] In one embodiment, an indication message sent by an access network device is received; wherein the indication message is used to indicate information about the DMRS port of the second type of DMRS; the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the information about the DMRS port of the second type of DMRS based on the DMRS port in the first relationship corresponding to the first indication identifier and the offset; wherein the first indication identifier is used to indicate a first relationship in a preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the relationship between indication identifiers and DMRS ports, each indication identifier corresponding to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0211] In one embodiment, an indication message sent by an access network device is received; wherein the indication message is used to indicate information about the DMRS port of a second type of DMRS; the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the information about the DMRS port of the second type of DMRS based on the DMRS port in the first relationship corresponding to the first indication identifier and the offset; wherein the first indication identifier is used to indicate a first relationship in a preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the first relationship is used to indicate one or more DMRS ports of a first type of DMRS; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0212] For example, please see Figure 4 The preset relationship is the relationship between the indicator value in Table 1 and the DMRS port of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicator indicates "10", then the first indicator indicates the first relationship between "10" and ports {0, 1, 2, 3}. If the second indicator indicates "2", that is, an offset of 2 is performed, and the DMRS port of the second type of DMRS obtained after the offset is {2, 3, 4, 5}.

[0213] In one embodiment, an indication message sent by an access network device is received; wherein the indication message is used to indicate information about the DMRS port of a second type of DMRS; the indication message includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, the offset being used to indicate that: the terminal determines the information about the DMRS port of the second type of DMRS based on the DMRS port and offset in the first relationship corresponding to the first indication identifier; wherein the first indication identifier is used to indicate a first relationship in a preset correspondence relationship, the first relationship being one of the preset correspondence relationships; wherein the preset relationship includes an indication identifier and a DMRS port The relationship between ports, where each indicator corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the first relationship is used to indicate one or more DMRS ports; wherein, the second indicator is a first offset, which is used to instruct the terminal to determine the DMRS port of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indicator and the first offset; and / or, the second indicator is a second offset, which is used to instruct the terminal to determine the DMRS port of the second type of DMRS according to the DMRS port in the first relationship corresponding to the first indicator and the second offset.

[0214] In one embodiment, at least two DMRS ports of the first type of DMRS have different offset values.

[0215] For example, please see Figure 4 The preset relationship is the relationship between the indicated values ​​in Table 1 and the DMRS ports of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicated identifier indicates "10", then the first indicated identifier "10" indicates the first relationship between ports {0, 1, 2, 3}. If the second indicated identifier indicates a first offset, for example, "4", and a second offset, for example, "5", where the first offset is the offset value of ports 0, 1, and 2, and the second offset is the offset value of port 3, then after performing the offset, the DMRS ports of the second type of DMRS obtained after the offset are {4, 5, 6, 8}.

[0216] In one embodiment, the offset value is determined based on the code division multiplexing (CDM) group used by the DMRS port of the first type of DMRS.

[0217] For example, please see Figure 4The preset relationship is the relationship between the indicated values ​​in Table 1 and the DMRS ports of the first type of DMRS, where the DMRS ports of the first type of DMRS are 0, 1, 2, and 3. If the first indicated identifier indicates "10", then the first indicated identifier "10" indicates the first relationship between ports {0, 1, 2}. If the second indicated identifier indicates a first offset, for example, "0", and a second offset, for example, "1", where the first offset is the offset value of ports 0 and 1 in the same CDM group, and the second offset is the offset value of port 2 in another CDM group, after performing the offset, the DMRS ports of the second type of DMRS obtained after the offset are {0, 1, 3}.

[0218] In one embodiment, the signaling carrying the first indication information and the second indication information is the same, and the signaling includes a first indication identifier and a second indication identifier.

[0219] In one embodiment, the signaling carrying the first indication information and the second indication information are different, and the first indication identifier and the second indication identifier are carried by different signaling.

[0220] In this embodiment, an indication message sent by an access network device is received. The indication message includes second indication information; the second indication information includes a second indication identifier; the second indication identifier indicates an offset value, which indicates that the terminal determines the DMRS port information of a second type of DMRS based on the DMRS port in a first relationship and the offset. The first relationship is one of a preset correspondence relationship; the preset relationship includes the relationship between the indication identifier and the DMRS port, with each indication identifier corresponding to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS. Here, because the indication message indicates an offset value, after receiving the indication message, the terminal can determine the DMRS port of the second type of DMRS based on the offset value indicated by the indication message and the first relationship. Compared to the case where only the DMRS ports of the first type of DMRS can be determined, when the DMRS ports of the second type of DMRS exist, the terminal can clearly determine the DMRS ports of different antenna signal types and use the corresponding DMRS ports for communication. This provides greater adaptability and makes wireless transmission based on DMRS ports more reliable.

[0221] Furthermore, in this embodiment of the disclosure, on the one hand, reusing the first relationship can reduce the complexity of the design; on the other hand, it enhances the flexibility of port indication when reusing the first relationship, enabling the allocation of appropriate ports for users in MU-MIMO, and ensuring the system performance and / or throughput of MU-MIMO.

[0222] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0223] like Figure 12 As shown, this embodiment provides a method for indicating information of the demodulation reference signal (DMRS) port, wherein the method is executed by a terminal, and the method includes:

[0224] Step 121: Receive the indication information sent by the access network device;

[0225] The indication information includes a first indication identifier; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, and each indication identifier corresponds to a DMRS port; the preset relationship includes at least a first type of DMRS and a DMRS port relationship, and a second type of DMRS and a DMRS port relationship; the first relationship is used to indicate one or more DMRS ports; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0226] It should be noted that after receiving the indication information sent by the access network device, a second indication identifier can also be received from the access network device. This second indication identifier indicates mapping type information, which indicates whether the DMRS port indicated by the first indication identifier uses the radio resources of a DMRS port of the first type of DMRS or a DMRS port of the second type of DMRS. This information is used to indicate whether the DMRS port is a port of the first type of DMRS or a port of the second type of DMRS. Of course, the mapping type information can also be sent along with the indication information; this is not limited here.

[0227] In one embodiment, an indication message sent by an access network device is received; wherein the indication message includes a first indication identifier and a second indication identifier, the second indication identifier indicating mapping type information; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes a relationship between the indication identifier and a DMRS port, each indication identifier corresponding to a DMRS port; the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port; the first relationship is used to indicate one or more DMRS ports; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the first type of DMRS or the radio resources of the DMRS port of the second type of DMRS.

[0228] In one embodiment, the DMRS port is used for CJT.

[0229] In one embodiment, an indication message sent by an access network device is received. The indication message includes a first indication identifier and a second indication identifier, the second indicating identifier indicating mapping type information. The first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship. The preset relationship includes a relationship between the indication identifier and a DMRS port, with each indication identifier corresponding to a DMRS port. The preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port. The first relationship indicates one or more DMRS ports. The number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS. The mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the first type of DMRS. In this case, the DMRS port determined based on the preset relationship is a first type of DMRS and a DMRS port.

[0230] In one embodiment, an indication message sent by an access network device is received. The indication message includes a first indication identifier and a second indication identifier, the second indication identifier indicating mapping type information. The first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship. The preset relationship includes a relationship between the indication identifier and a DMRS port, with each indication identifier corresponding to a DMRS port. The preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port. The first relationship indicates one or more DMRS ports. The number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS. The mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the second type of DMRS. In this case, the DMRS port determined based on the preset relationship is a second type of DMRS and a DMRS port.

[0231] In this embodiment of the disclosure, an indication message sent by an access network device is received. The indication message includes a first indication identifier and mapping type information. The first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship. The preset relationship includes a relationship between the indication identifier and a DMRS port, with each indication identifier corresponding to a DMRS port. The preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port. The first relationship indicates one or more DMRS ports. The number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS. Since the preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port, after receiving the indication message, the terminal can determine the DMRS port of the second type of DMRS based on the relationship between the first type of DMRS and the DMRS port indicated by the preset relationship, and the relationship between the second type of DMRS and the DMRS port.

[0232] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0233] like Figure 13 As shown, this embodiment provides a method for indicating information of the demodulation reference signal (DMRS) port, wherein the method is executed by a terminal, and the method includes:

[0234] Step 131: Receive the indication information sent by the access network device;

[0235] Wherein, the indication information is used to indicate the DMRS port information of the second type of DMRS; the indication information includes second indication information; the second indication information includes a second indication identifier; the second indication identifier is a first offset, the first offset is used to instruct the terminal to determine the DMRS port of the second type of DMRS according to the DMRS port in the first relationship and the first offset; and / or, the second indication identifier is a second offset, the second offset is used to instruct the terminal to determine the DMRS port of the second type of DMRS according to the DMRS port in the first relationship and the second offset; the first relationship is one of the preset correspondence relationships; the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS.

[0236] It should be noted that the first relationship can be stored in the terminal beforehand.

[0237] For details on step 121, please refer to the relevant explanations in step 111; they will not be repeated here.

[0238] In this disclosure, after receiving the indication information, the terminal can determine the DMRS port of the second type of DMRS based on the second indication identifier and the first relationship.

[0239] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0240] like Figure 14 As shown, this embodiment provides a method for indicating information of the demodulation reference signal (DMRS) port, wherein the method is executed by a terminal, and the method includes:

[0241] Step 141: Receive the indication information sent by the access network device;

[0242] The indication information includes a first indication identifier and a second indication identifier, the second indication identifier indicating mapping type information; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; the preset relationship includes the relationship between the indication identifier and the DMRS port, each indication identifier corresponding to a DMRS port; the preset relationship includes at least the relationship between a first type of DMRS and a DMRS port, and the relationship between a second type of DMRS and a DMRS port; the first relationship is used to indicate one or more DMRS ports; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS; the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the first type of DMRS or the radio resources of the DMRS port of the second type of DMRS.

[0243] In one embodiment, the DMRS port is used for CJT.

[0244] In one embodiment, an indication message sent by an access network device is received. The indication message includes a first indication identifier and a second indication identifier, the second indicating identifier indicating mapping type information. The first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship. The preset relationship includes a relationship between the indication identifier and a DMRS port, with each indication identifier corresponding to a DMRS port. The preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port. The first relationship indicates one or more DMRS ports. The number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS. The mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the first type of DMRS. In this case, the DMRS port determined based on the preset relationship is a first type of DMRS and a DMRS port.

[0245] In one embodiment, an indication message sent by an access network device is received. The indication message includes a first indication identifier and mapping type information. The first indication identifier instructs the terminal to determine a first relationship from a preset relationship. The preset relationship includes a relationship between the indication identifier and a DMRS port, with each indication identifier corresponding to a DMRS port. The preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port. The first relationship indicates one or more DMRS ports. The number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS. The mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the second type of DMRS. In this case, the DMRS port determined based on the preset relationship is a second type of DMRS and a DMRS port.

[0246] In this embodiment, an indication information sent by an access network device is received. The indication information includes a first indication identifier and mapping type information. The first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship. The preset relationship includes a relationship between the indication identifier and a DMRS port, with each indication identifier corresponding to a DMRS port. The preset relationship includes at least a relationship between a first type of DMRS and a DMRS port, and a relationship between a second type of DMRS and a DMRS port. The first relationship indicates one or more DMRS ports. The number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS. The mapping type information indicates the radio resources of the DMRS port of the first type of DMRS or the radio resources of the DMRS port of the second type of DMRS. Since the preset relationship includes at least a relationship between the first type of DMRS and a DMRS port, and a relationship between the second type of DMRS and a DMRS port, and the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the second type of DMRS. After receiving the instruction information, the terminal can determine whether the DMRS port determined based on the preset relationship is a first type of DMRS and DMRS port or a second type of DMRS and DMRS port.

[0247] Furthermore, in this embodiment, on the one hand, the correspondence between the indication value and the DMRS port of the first type of DMRS can be partially reused, reducing design complexity. On the other hand, it can better support the switching between the first type of DMRS and the second type of DMRS, and can indicate the appropriate DMRS mapping method to the user according to the actual channel conditions.

[0248] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0249] like Figure 15 As shown in the figure, this embodiment of the present disclosure provides an indication device for information of a demodulation reference signal (DMRS) port, wherein the device includes:

[0250] The sending module 151 is configured to send indication information to the terminal;

[0251] The indication information is used to indicate the information of the DMRS port of the second type of DMRS.

[0252] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0253] like Figure 16 As shown in the figure, this embodiment of the present disclosure provides an indication device for information of a demodulation reference signal (DMRS) port, wherein the device includes:

[0254] The receiving module 161 is configured to receive indication information sent by the access network device;

[0255] The indication information is used to indicate the information of the DMRS port of the second type of DMRS.

[0256] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0257] This disclosure provides a communication device, which includes:

[0258] processor;

[0259] Memory used to store processor-executable instructions;

[0260] The processor is configured to implement, when running executable instructions, the methods applicable to any embodiment of this disclosure.

[0261] The processor may include various types of storage media, which are non-transitory computer storage media that can continue to store information after the communication device loses power.

[0262] The processor can connect to the memory via a bus or other means to read executable programs stored in the memory.

[0263] This disclosure also provides a computer storage medium storing a computer executable program, which, when executed by a processor, implements the method of any embodiment of this disclosure.

[0264] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0265] like Figure 17 As shown, one embodiment of this disclosure provides a terminal structure.

[0266] Reference Figure 17 The terminal 800 shown in this embodiment is a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, etc.

[0267] Reference Figure 17 Terminal 800 may include one or more of the following components: processing component 802, memory 804, power supply component 806, multimedia component 808, audio component 810, input / output (I / O) interface 812, sensor component 814, and communication component 816.

[0268] Processing component 802 typically controls the overall operation of terminal 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0269] Memory 804 is configured to store various types of data to support the operation of device 800. Examples of this data include instructions for any application or method operating on terminal 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0270] Power supply component 806 provides power to various components of terminal 800. Power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 800.

[0271] Multimedia component 808 includes a screen that provides an output interface between terminal 800 and user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When device 800 is in an operating mode, such as shooting mode or video mode, the front-facing camera and / or rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0272] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when terminal 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0273] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0274] Sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of terminal 800. For example, sensor assembly 814 may detect the on / off state of device 800, the relative positioning of components such as the display and keypad of terminal 800, changes in the position of terminal 800 or a component of terminal 800, the presence or absence of user contact with terminal 800, the orientation or acceleration / deceleration of terminal 800, and temperature changes of terminal 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0275] Communication component 816 is configured to facilitate wired or wireless communication between terminal 800 and other devices. Terminal 800 can access wireless networks based on communication standards, such as Wi-Fi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0276] In an exemplary embodiment, terminal 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0277] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of a terminal 800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0278] like Figure 18 As shown, one embodiment of this disclosure illustrates the structure of a base station. For example, base station 900 can be provided as a network-side device. (Refer to...) Figure 18The base station 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by a memory 932 for storing instructions, such as application programs, that can be executed by the processing component 922. The application programs stored in the memory 932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 922 is configured to execute instructions to perform any of the methods described above applied to the base station.

[0279] Base station 900 may also include a power supply component 926 configured to perform power management of base station 900, a wired or wireless network interface 950 configured to connect base station 900 to a network, and an input / output (I / O) interface 958. Base station 900 can operate on an operating system stored in memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0280] To better understand the embodiments of this disclosure, the technical solution of this disclosure is described below through an exemplary embodiment:

[0281] Example 1:

[0282] In one embodiment, the user receives enhanced DMRS port indication information from the network side.

[0283] In one embodiment, the mapping between the value of the indicator field and the DMRS port in the relevant technology is fully reused. This can include both method one and method two.

[0284] Method 1: Introduce an offset indicator.

[0285] In one embodiment, please see again Figure 3 For DMRS etype1, the antenna indication field can only indicate one or more ports from 0, 1, 2, and 3. Then, to indicate ports 4, 5, 6, and 7, an offset is added to the number of ports indicated by the antenna field. For example, if the indication field value is 10, the indicated ports are {0, 1, 2, 3}; if the offset value is 2, the actual ports are {2, 3, 4, 5}.

[0286] Method 2: Introduce two offset values

[0287] In one embodiment, offset values ​​for each of the two indicated CDM groups are introduced. For example, if the port indicated to the user is {0,1,3}, the offset value for CDM group1 is offset1=0, and the offset value for CDM group2 is offset2=1, then the final port is {0,1,4}. Without introducing the two offset values, such a combination cannot be indicated by reusing tables.

[0288] In one embodiment, the correspondence between the value of the indication field and the DMRS port is partially reused in related technologies.

[0289] In one embodiment, the table of related protocols (as shown in Table 1) is expanded by adding a portion after the table of related protocols. For example, the table for type 1 single symbol is expanded as shown in Table 3.

[0290] Table 3:

[0291]

[0292] It is understood that each element in Table 3 exists independently. These elements are listed in the same table as an example, but this does not mean that all elements in the table must exist simultaneously as shown in the table. The value of each element is independent of the values ​​of any other element in Table 1. Therefore, those skilled in the art will understand that the value of each element in Table 1 is an independent embodiment, and furthermore, each row, each column, or any combination of element values ​​in the table can also be considered an independent embodiment.

[0293] In one embodiment, the antenna indication field is expanded to support larger values. For antenna indication field values ​​greater than 11, the user can identify the mapping type as etype1. However, when the antenna indication field value is between 0 and 11, additional information is needed to inform the user of the mapping type used.

[0294] In one embodiment, the indication of the indication information may be indicated by higher-level signaling or in the DCI.

[0295] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0296] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A method for indicating information at a demodulation reference signal (DMRS) port, wherein, The method is executed by an access network device, and the method includes: Send instruction information to the terminal; The indication information is used to indicate the information of the DMRS port of the second type of DMRS; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is used to indicate that the DMRS port of the second type of DMRS is determined through the first relationship; the preset correspondence includes the relationship between the second type of DMRS and the DMRS port; the preset correspondence is the relationship between the second indication identifier and the DMRS port, and each second indication identifier corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS, and the signaling carrying the first indication information and the second indication information is different.

2. The method according to claim 1, wherein, The first indication identifier and the second indication identifier are carried by different signaling.

3. The method according to claim 1, wherein, The first relationship is used to indicate one or more DMRS ports; The indication information includes a first indication identifier; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, and each indication identifier corresponds to a DMRS port; the preset relationship includes at least the relationship between a first type of DMRS and a DMRS port, and the relationship between a second type of DMRS and a DMRS port; the second type of DMRS supports a greater number of DMRS ports than the first type of DMRS supports.

4. The method according to claim 3, wherein, The indication information includes a first indication identifier and a second indication identifier, wherein the second indication identifier indicates mapping type information; the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the first type of DMRS or the radio resources of the DMRS port of the second type of DMRS.

5. A method for indicating information at a demodulation reference signal (DMRS) port, wherein, The method is executed by a terminal, and the method includes: Receive instruction information sent by access network devices; The indication information is used to indicate the information of the DMRS port of the second type of DMRS; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is used to indicate that the DMRS port of the second type of DMRS is determined through the first relationship; the preset correspondence includes the relationship between the second type of DMRS and the DMRS port; the preset correspondence is the relationship between the second indication identifier and the DMRS port, and each second indication identifier corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS, and the signaling carrying the first indication information and the second indication information is different.

6. The method according to claim 5, wherein, The first indication identifier and the second indication identifier are carried by different signaling.

7. The method according to claim 5, wherein, The first relationship is used to indicate one or more DMRS ports; The indication information includes a first indication identifier; the first indication identifier is used to instruct the terminal to determine a first relationship from a preset relationship; wherein the preset relationship includes the relationship between the indication identifier and the DMRS port, and each indication identifier corresponds to a DMRS port; the preset relationship includes at least the relationship between a first type of DMRS and a DMRS port, and the relationship between a second type of DMRS and a DMRS port; the second type of DMRS supports a greater number of DMRS ports than the first type of DMRS supports.

8. The method according to claim 7, wherein, The indication information includes a first indication identifier and a second indication identifier, wherein the second indication identifier indicates mapping type information; the mapping type information indicates that the DMRS port indicated by the first indication identifier uses the radio resources of the DMRS port of the first type of DMRS or the radio resources of the DMRS port of the second type of DMRS.

9. An indication device for information at a demodulation reference signal (DMRS) port, wherein, The device includes: The sending module is configured to send indication information to the terminal; The indication information is used to indicate the information of the DMRS port of the second type of DMRS; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is used to indicate that the DMRS port of the second type of DMRS is determined through the first relationship; the preset correspondence includes the relationship between the second type of DMRS and the DMRS port; the preset correspondence is the relationship between the second indication identifier and the DMRS port, and each second indication identifier corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS, and the signaling carrying the first indication information and the second indication information is different.

10. An indication device for information at a demodulation reference signal (DMRS) port, wherein, The device includes: The receiving module is configured to receive indication information sent by the access network device; The indication information is used to indicate the information of the DMRS port of the second type of DMRS; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is used to indicate that the DMRS port of the second type of DMRS is determined through the first relationship; the preset correspondence includes the relationship between the second type of DMRS and the DMRS port; the preset correspondence is the relationship between the second indication identifier and the DMRS port, and each second indication identifier corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS, and the signaling carrying the first indication information and the second indication information is different.

11. A method for indicating information of a demodulation reference signal (DMRS) port, applied to a communication system, the communication system including access network equipment and a terminal; The access network device sends instruction information to the terminal; in, The indication information is used to indicate the information of the DMRS port of the second type of DMRS; the indication information includes first indication information and second indication information; the first indication information includes a first indication identifier; the second indication information includes a second indication identifier, the first indication identifier is used to indicate a first relationship in a preset correspondence, and the second indication identifier is used to indicate that the DMRS port of the second type of DMRS is determined through the first relationship; the preset correspondence includes the relationship between the second type of DMRS and the DMRS port; the preset correspondence is the relationship between the second indication identifier and the DMRS port, and each second indication identifier corresponds to a DMRS port; the number of DMRS ports supported by the second type of DMRS is greater than the number of DMRS ports supported by the first type of DMRS, and the signaling carrying the first indication information and the second indication information is different.

12. A communication system, comprising access network equipment and a terminal; The access network device is used to perform the method for indicating information of the DMRS port as described in any one of claims 1 to 4; The terminal is used to perform the method of indicating information of the DMRS port as described in any one of claims 5 to 8.

13. A communication device, wherein, include: antenna; Memory; The processor, connected to the antenna and the memory respectively, is configured to control the transmission and reception of the antenna by executing computer-executable instructions stored in the memory, and is capable of implementing the method provided by any one of claims 1 to 4 or 5 to 8.

14. A computer storage medium storing computer-executable instructions, which, when executed by a processor, can implement the method provided by any one of claims 1 to 4 or 5 to 8.

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