CN116938426A

CN116938426A - Indication method, terminal and network side equipment of DMRS port information

Info

Publication number: CN116938426A
Application number: CN202210809489.1A
Authority: CN
Inventors: 郑凯立; 孙鹏; 刘昊; 塔玛拉卡·拉盖施
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-04-02
Filing date: 2022-07-11
Publication date: 2023-10-24

Abstract

The embodiment of the application discloses a method for indicating DMRS port information, a terminal and network side equipment, belonging to the technical field of communication, wherein the method for indicating the DMRS port information comprises the following steps: the terminal receives target indication information; the target indication information is used for indicating a target numerical value item in X numerical value items of a target indication table, the target numerical value item corresponds to information of a DMRS port used by the terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer; and the terminal performs data transmission or data reception according to the information of the DMRS port.

Description

Indication method, terminal and network side equipment of DMRS port information

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method for indicating demodulation reference signal (Demodulation Reference Signal, DMRS) port information, a terminal and network side equipment.

Background

In order to further increase the number of users of multi-user-multiple input multiple output (MU-MIMO) and the number of data streams transmitted simultaneously, the number of DMRS ports of the data channels in the New Radio (NR) system may be further increased. Then, after the newly added DMRS port is introduced, how to instruct and distinguish the existing DMRS port from the newly added DMRS port is a key problem, and therefore, enhancement optimization of the DMRS port indication method is required.

Disclosure of Invention

The embodiment of the application provides a method for indicating DMRS port information, a terminal and network side equipment, which can solve the problem that different types of DMRS ports cannot be indicated and distinguished in the related art, and terminal communication is affected.

In a first aspect, there is provided a method for indicating DMRS port information, including: the terminal receives target indication information; the target indication information is used for indicating a target numerical value item in X numerical value items of a target indication table, the target numerical value item corresponds to information of a DMRS port used by the terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer; and the terminal performs data transmission or data reception according to the information of the DMRS port.

In a second aspect, there is provided a method for indicating DMRS port information, including: the network side equipment sends target indication information; the target indication information is used for indicating a target value item in X value items of a target indication table, the target value item corresponds to information of a DMRS port used by a terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer.

In a third aspect, an apparatus for indicating DMRS port information is provided, including: the communication module is used for receiving the target indication information; the target indication information is used for indicating a target numerical value item in X numerical value items of a target indication table, the target numerical value item corresponds to information of a DMRS port used by the device, the DMRS port used by the device comprises a first type port and/or a second type port, and X is a positive integer; and the communication module is also used for carrying out data transmission or data reception according to the information of the DMRS port.

In a fourth aspect, an apparatus for indicating DMRS port information is provided, including: the communication module is used for sending target indication information; the target indication information is used for indicating a target value item in X value items of a target indication table, the target value item corresponds to information of a DMRS port used by a terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer.

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the communication interface is configured to receive target indication information; the target indication information is used for indicating a target numerical value item in X numerical value items of a target indication table, the target numerical value item corresponds to information of a DMRS port used by the terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer; and carrying out data transmission or data reception according to the information of the DMRS port.

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.

An eighth aspect provides a network side device, including a processor and a communication interface, where the communication interface is configured to send target indication information; the target indication information is used for indicating a target value item in X value items of a target indication table, the target value item corresponds to information of a DMRS port used by a terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer.

In a ninth aspect, there is provided an indication system of DMRS port information, including: a terminal operable to perform the steps of the method as described in the first aspect, and a network side device operable to perform the steps of the method as described in the second aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions, implementing the steps of the method as described in the first aspect, or implementing the steps of the method as described in the second aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the method as described in the first aspect or to implement the steps of the method as described in the second aspect.

In the embodiment of the application, the first type port and/or the second type port can be indicated by indicating the target numerical value item in the X numerical value items of the target indication table, so that the indication and the distinction of the first type port and the second type port are supported, the number of DMRS ports is increased, the number of MU-MIMO users and the number of data streams transmitted simultaneously are improved, and the performance of a communication system is improved.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a method of indicating DMRS port information according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a first type of port and a second type of port according to an embodiment of the present application;

fig. 4 is a schematic flowchart of a method of indicating DMRS port information according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an indication apparatus of DMRS port information according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an indication apparatus of DMRS port information according to an embodiment of the present application;

fig. 7 is a schematic structural view of a communication device according to an embodiment of the present application;

fig. 8 is a schematic structural view of a terminal according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. The access network device may include a base station, a WLAN access point, a WiFi node, or the like, where the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission receiving point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is described by way of example, and the specific type of the base station is not limited.

The method for indicating the DMRS port information provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

As shown in fig. 2, an embodiment of the present application provides a method 200 for indicating DMRS port information, which may be performed by a terminal, in other words, by software or hardware installed in the terminal, the method including the following steps.

S202: the terminal receives target indication information; the target indication information is used for indicating a target value item in X value items of a target indication table, the target value item corresponds to information of a DMRS port used by the terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer.

The first type ports may be DMRS ports that have been used by NR, and are ports (ports) 0 to 7, respectively, when DMRS configures type 1; when DMRS configures type 2, the first type ports are port 0 to port 11, respectively, and the second type port may be a DMRS port different from the first type port.

Optionally, the first type of port and the second type of port satisfy at least one of the following 1) to 4):

1) The port index of the second type port is greater than or equal to the port index of the first type port. For example, when the configuration type of DMRS is related to DMRS configuration type 1 (configuration type 1), the first type of ports includes 8 DMRS ports in total from port 0 to port 7; the second type of ports includes 8 DMRS ports in total from port 8 to port 15; when the configuration type of DMRS is related to DMRS configuration type 2 (configuration type 2), the first type of ports includes 12 DMRS ports in total from port 0 to port 11; the second type of ports includes 12 DMRS ports in total from port 12 to port 23, and so on.

For DMRS configuration type 1 and DMRS configuration type 2 mentioned above, both DMRS configuration types support single symbol and dual symbol structures. The maximum supported port number of the single-symbol structure of the DMRS configuration type 1 is different from the maximum supported port number of the single-symbol structure of the DMRS configuration type 2; the maximum supported port number of the double-symbol structure of DMRS configuration type 1 is also different from the maximum supported port number of the double-symbol structure of DMRS configuration type 2. In addition, the number of code division multiplexing (Code Division Multiplexing, CDM) groups (i.e., CDM groups) supported by DMRS configuration type 1 is also different from the number of CDM groups supported by DMRS configuration type 2.

2) The second type of port belongs to a different code division multiplexing (Code Division Multiplexing, CDM) group (i.e., CDM group) than the first type of port.

3) The second type of port corresponds to a different frequency division orthogonal cover code (Frequency Division-Orthogonal Cover Code, FD-OCC) sequence for orthogonalization and channel estimation of DMRS ports in the same CDM group than the first type of port.

4) The second type of port corresponds to a different Time Division orthogonal cover code (TD-OCC) sequence for orthogonalization and channel estimation of DMRS ports in the same CDM group than the first type of port.

The target indicator table may be referred to as a DMRS port indicator table, and includes X number of value entries, where each value entry may correspond to an index of a first type port and/or a second type port, for example, value entries 0-5 correspond to an index of the first type port; the numerical items 6-11 correspond to indexes of the second type ports; the numerical entries 12-17 correspond to indexes of the first type of port and the second type of port. Of course, each value entry in the target indication table may also correspond to other contents, for example, the number of DMRS CDM groups corresponding to the presence or absence of data, the number of preamble symbols, and the like.

In this embodiment, the target indication information may be used to indicate one of the X number items of the target indication table, through which the terminal may determine the information of the DMRS port corresponding to the number item.

S204: and the terminal performs data transmission or data reception according to the information of the DMRS port.

In the step, the terminal can send a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) according to the information of the DMRS port; or, the terminal may also receive a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) according to the information of the DMRS port.

According to the indication method of the DMRS port information provided by the embodiment of the application, a terminal receives target indication information, wherein the target indication information is used for indicating a target numerical item in X numerical items of a target indication table, the target numerical item corresponds to the information of the DMRS port used by the terminal, and the DMRS port used by the terminal comprises a first type port and/or a second type port; and the terminal performs data transmission or data reception according to the information of the DMRS port. According to the embodiment of the application, the first type port and/or the second type port can be indicated through the target numerical value item in the X numerical value items of the indication target indication table, the indication and the distinction of the first type port and the second type port are supported, the number of DMRS ports is increased, the number of MU-MIMO users and the number of data streams transmitted simultaneously are improved, and the performance of a communication system is improved.

Optionally, the target indication table mentioned in embodiment 200 includes one of the following:

1) And the X number items of the first indicator correspond to the information of the first type port.

2) And the N pieces of information corresponding to the second type port in the X number items of the second indication table correspond to the information of the first type port and the second type port, N is a positive integer, and N is smaller than X.

Optionally, the DMRS ports included in the second indicator table each perform channel estimation based on the FD-OCC sequence of length 4 as a despreading hypothesis.

3) And the X-M-P pieces of information corresponding to the first type port and the second type port are respectively used for storing the information of the first type port and the information of the second type port, M and P are positive integers, and X is larger than the sum of M and P.

In one example, the third indicator table may add a list of despreading hypothesis identifiers, that is, the despreading hypothesis identifier distinguishes whether the first type port included in the third indicator table performs channel estimation based on the FD-OCC sequence with length 4 as a despreading hypothesis or performs channel estimation based on the FD-OCC sequence with length 2 as a despreading hypothesis; the second type port included in the third indication table performs channel estimation by default based on the FD-OCC sequence with length of 4 as a despreading hypothesis.

In another example, the third indicator table does not include the above-mentioned despreading hypothesis identifier, and the first type port included in the third indicator table is indicated by signaling to perform channel estimation based on the FD-OCC sequence with length of 2 as a despreading hypothesis, or perform channel estimation based on the FD-OCC sequence with length of 4 as a despreading hypothesis; the second type port included in the third indication table performs channel estimation by default based on the FD-OCC sequence with length of 4 as a despreading hypothesis.

In another example, the third indication table does not include the above despreading hypothesis identification, but includes a first type port for channel estimation based on the FD-OCC sequence of length 2 as a despreading hypothesis, a first type port for channel estimation based on the FD-OCC sequence of length 4 as a despreading hypothesis, and a second type port for channel estimation based on the FD-OCC sequence of length 4 as a despreading hypothesis.

4) And the X number items of the fourth indication table correspond to the information of the first type port and the second type port.

The fourth indication table is applicable to the situation that the configuration type of the DMRS is related to the DMRS configuration type 1, the DMRS is of a single symbol structure, and the data transmission corresponding to the DMRS uses double codewords.

Optionally, the method provided by embodiment 200 further includes: the terminal receives first configuration information, wherein the first configuration information is used for indicating the target indication table used by the terminal or is used for indicating the terminal to switch the target indication table. The first configuration information may be a radio resource control (Radio Resource Control, RRC) signaling message.

Optionally, the switching the target indication table includes one of:

1) And switching between the first indicator table and the second indicator table.

2) And switching between the first indicator table and the third indicator table.

3) And switching between the first indication table and the fourth indication table.

Optionally, the method further comprises: and the terminal reports first capability information, wherein the first capability information is used for indicating whether the terminal supports the second type port or not.

It can be understood that the terminal supports only the first indication list configured in case the terminal does not support the second type port; in the case where the terminal supports the second type of port, the terminal support is configured to at least one of: the first indicator, the second indicator, the third indicator and the fourth indicator.

The embodiment of the application provides the second type port, and considers whether the terminal supports the second port, so that the method of the embodiment of the application can be used by a proper terminal, and the communication effectiveness is improved.

Optionally, the method provided in the foregoing embodiments further includes: the terminal confirms a despreading assumption corresponding to channel estimation of the DMRS port by one of:

1) And the first configuration information is used for indicating the target indication table used by the terminal or indicating the terminal to switch the target indication table, wherein the first configuration information has a corresponding relation with the despreading hypothesis. The first configuration information may be an RRC signaling message, for example, the first configuration information indicates a target indication table used by the terminal, which corresponds to the first despreading hypothesis or the second despreading hypothesis by default.

2) Second configuration information including a scrambling code Identification (ID) of the DMRS, wherein the scrambling code ID has a correspondence with the despreading hypothesis, for example, a scrambling code ID of 0 corresponds to the first despreading hypothesis; a scrambling code ID of 1 corresponds to the second despreading hypothesis.

3) And third configuration information, wherein the third configuration information has a corresponding relation with the despreading hypothesis. The third configuration information may be an RRC signaling message, for example, indicating that the despreading assumption of the terminal is the first despreading assumption or the second despreading assumption.

4) And despreading instruction information, wherein the despreading instruction information comprises information corresponding to a specific instruction domain in downlink control information (Downlink Control Information, DCI), and the information corresponding to the specific instruction domain has a corresponding relation with the despreading hypothesis. For example, the particular indication field being 0 corresponds to a first despreading hypothesis; the specific indication field of 1 corresponds to a second despreading hypothesis.

5) And a value corresponding to a value item of the target indication table, wherein a corresponding relation (or called an association relation) exists between the value corresponding to the target value item and the despreading hypothesis. For example, when the value corresponding to the value term is less than or equal to a, the first despreading hypothesis is corresponding; and when the value corresponding to the value item is greater than or equal to A, corresponding to a second despreading assumption, wherein A is a positive integer.

6) And the target indication list comprises information of the DMRS ports corresponding to the numerical items, wherein the information of the DMRS ports has a corresponding relation with the despreading hypothesis.

For example, if the numerical term corresponds to information of the first type port and the second type port, the despreading assumption corresponding to the first type port is the second despreading assumption.

7) And a despreading hypothesis identification in the target indication table, wherein the despreading hypothesis identification has a corresponding relation with the despreading hypothesis. For example, a list of despreading hypothesis identifiers is newly added in the target indication table, and the despreading hypothesis identifiers are used for indicating despreading hypotheses corresponding to the DMRS ports. For example, the despreading hypothesis identification corresponds to the first despreading hypothesis or the second despreading hypothesis.

8) Time domain resource allocation information, the time domain resource allocation information being used to determine time domain resource allocation of the data. And the time domain resource allocation information has a corresponding relation with the despreading assumption. For example, the first despreading hypothesis or the second despreading hypothesis is configured in a PDSCH time domain resource configuration information element (PDSCH-timedomainresource allocation) configured by RRC signaling. When DCI signaling of a scheduled PDSCH indicates time domain resource configuration information of the PDSCH, a despreading assumption of the DMRS may be determined correspondingly.

9) Default rules that apply to the DRMS ports in all or part of the numerical entries in the target indication table. For example, the default rules are: the DMRS ports in all the numerical entries in the target indication table correspond to either the first despreading hypothesis or the second despreading hypothesis. Alternatively, the default rule is: even if the network side indicates the second despreading hypothesis, the DMRS ports in some numerical terms in the target indication table always correspond to the first despreading hypothesis, and the DMRS ports in the other numerical terms correspondingly correspond to the second despreading hypothesis according to the indication of the network side.

Optionally, the despreading assumption includes at least one of: a first despreading hypothesis comprising channel estimation by the terminal based on an FD-OCC sequence of length 2; a second despreading hypothesis comprising channel estimation by the terminal based on FD-OCC sequence of length 4.

This embodiment provides one or more methods to determine whether to perform channel estimation based on a length-2 FD-OCC sequence or a length-4 FD-OCC sequence for a first type of port.

In order to describe the indication method of DMRS port information provided in the embodiments of the present application in detail, the following description will be made with reference to several specific embodiments.

Example 1

In this embodiment, the configuration type of the DMRS is related to the DMRS configuration type 1, and the DMRS is a single symbol structure, which is taken as an example, to explain the first type port and the second type port.

In the related art NR protocol, the DMRS of DMRS configuration type 1 of a single symbol structure includes a maximum of 4 ports, which are port (port) 0, port 1, port 2, and port 3, respectively. The CDM groups may be divided into 2, and the ports belonging to CDM group 0 are port 0 and port 1, and the ports belonging to CDM group 1 are port 2 and port 3.

After DMRS port expansion is performed on the DMRS, it is assumed that at this time, the number of ports of the DMRS is expanded to 8, the ports belonging to CDM group 0 are port 0, port 1, port 8 and port 9, the ports belonging to CDM group 1 are port 2, port 3, port 10 and port 11, as shown in fig. 3, where port 0, port 1, port 2 and port 3 are first type ports, and occupy the port numbers in the existing NR protocol; port 8, port 9, port 10 and port 11 are second type ports, extending the newly added port number.

Example two

In this embodiment, the configuration type of the DMRS is related to the DMRS configuration type 1, and the DMRS is in a single symbol structure, which is taken as an example, to exemplify the first indicator table. When the DMRS configuration type of the PDSCH is related to DMRS configuration type 1, the maximum symbol length (maxlength) of the DMRS is 1, and the PDSCH corresponding single codeword is enabled, the first indication table is as follows:

TABLE 1 first indicator

Wherein 12 numerical terms are included and each corresponds to information of a first type of port (i.e., port 0, port 1, port 2, and port 3). Note that the numerical entries 12-15 are reserved entries and do not correspond to any ports.

Alternatively, the first indication table is as follows:

TABLE 1A first indicator

Wherein 13 numerical terms are included and each corresponds to information of a first type of port (i.e., port 0, port 1, port 2, and port 3). Note that the numerical entries 13-15 are reserved entries and do not correspond to any ports.

When the first configuration information sent by the network side indicates that the target indication table is the first indication table, the first type port is defaulted to perform channel estimation based on the FD-OCC sequence with the length of 2 as a despreading hypothesis or perform channel estimation based on the FD-OCC sequence with the length of 4 as a despreading hypothesis. The first configuration information indicates that the target indication table is the first indication table and includes a case that the network does not configure the first configuration information, that is, the default target indication table is the first indication table, and the first type port performs channel estimation based on the FD-OCC sequence with length of 2 as a despreading hypothesis or performs channel estimation based on the FD-OCC sequence with length of 4 as a despreading hypothesis. Alternatively, the first type port may be indicated by the first configuration information as to whether to perform channel estimation based on the FD-OCC sequence of length 2 as a despreading hypothesis or to perform channel estimation based on the FD-OCC sequence of length 4 as a despreading hypothesis.

It should be noted that, when the first type port performs channel estimation based on the FD-OCC sequence with length of 4 as a despreading hypothesis, the method further includes excluding a part of specific values, where the first type port corresponding to the specific value is from a plurality of CDM groups, and at this time, the first type port corresponding to the specific value performs channel estimation based on the FD-OCC sequence with length of 2 as a despreading hypothesis. Taking table 2 as an example, the first type ports corresponding to values 9, 10, 11 are from 2 CDM groups, not all from one CDM group, so the first type ports corresponding to values 9, 10, 11 always perform channel estimation based on FD-OCC sequences with length of 2 as despreading hypotheses.

Example III

In this embodiment, the configuration type of the DMRS is related to the DMRS configuration type 1, and the DMRS is in a single symbol structure, which is taken as an example, to exemplify the second indicator table. When the DMRS configuration type of the PDSCH is related to DMRS configuration type 1, the maximum symbol length (maxlength) of the DMRS is 1, and the PDSCH corresponding single codeword is enabled, the second indicator is as follows:

TABLE 2 second indicator

Wherein, 14 numerical terms are included, wherein 10 terms correspond to information of the second type of ports (i.e., port 8, port 9, port 12, and port 13), and 4 terms correspond to information of the first type of ports and the second type of ports, i.e., DMRS ports corresponding to the numerical terms include the first type of ports and the second type of ports (e.g., numerical terms 10-13).

It should be noted that, the correspondence between the value of the entry in the second indicator table and the DMRS port, and the DMRS port corresponding to the entry in the second indicator table are not limited to the above case, and may be other second type ports or a combination of the first type port and the second type port. For example, the second indicator table may also be:

TABLE 2A second indicator

Or Table 2B second indicator

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When the first configuration information sent by the network side indicates that the target indication table is the second indication table, default that the first type port and the second type port perform channel estimation based on the FD-OCC sequence with the length of 4 as a despreading assumption.

Example IV

In this embodiment, the configuration type of the DMRS is related to the DMRS configuration type 1, and the DMRS is in a single symbol structure, which is taken as an example, to exemplify the third indicator table. When the DMRS configuration type of the PDSCH is related to DMRS configuration type 1, the maximum symbol length (maxlength) of the DMRS is 1, and the PDSCH corresponding single codeword is enabled, the third indication table is as follows:

TABLE 3 third indicator

Wherein 26 numerical terms are included, wherein 12 terms correspond to the information of the first type of ports (i.e., port 0, port 1, port 2, and port 3), 10 terms correspond to the information of the second type of ports (i.e., port 8, port 9, port 12, and port 13), and 4 terms correspond to the information of the first type of ports and the second type of ports, i.e., the DMRS port corresponding to the numerical term includes the first type of ports and the second type of ports (e.g., numerical terms 22-25).

It should be noted that, the correspondence between the value of the entry in the third table and the DMRS port, and the DMRS port corresponding to the entry in the third table are not limited to the above. For example, the third indicator may be:

TABLE 3A third indicator

Or alternatively

TABLE 3B third indicator

Or alternatively

TABLE 3C third indicator

Or alternatively

Table 3D third indicator

Or alternatively

Table 3E third indicator

For table 3 or table 3A or 3B, when the numerical entry is 0-11 entries, or for table 3C or 3D or 3E, it may be indicated by a signaling indication whether the first type ports (port 0, port 1, port 2, and port 3) perform channel estimation based on the FD-OCC sequence of length 2 as a despreading hypothesis, or based on the OCC sequence of length 4 as a despreading hypothesis. For example, the number of the cells to be processed,

1) The signaling indication is second configuration information sent by the network side, wherein the second configuration information is a scrambling code ID of the DMRS. When the scrambling code ID is 0, channel estimation is performed based on the FD-OCC sequence with length of 2 as a despreading hypothesis; when the scrambling code ID is 1, channel estimation is performed based on the FD-OCC sequence of length 4 as a despreading assumption.

2) Or despreading indication information sent by a network side, wherein the despreading indication information is a specific indication domain in DCI. For example, a 1-Bit (Bit) indication field in DCI, and when the Bit is 0, performing channel estimation based on FD-OCC sequence with length of 2 as despreading hypothesis; when the Bit is 1, channel estimation is performed based on the FD-OCC sequence of length 4 as a despreading hypothesis.

3) Or third configuration information sent by the terminal network side, where the third configuration information is used to instruct the terminal to perform despreading assumption of channel estimation. For example, the third configuration information is RRC signaling, and its corresponding configuration field a is associated with an FD-OCC sequence of length 2, and configuration field B is associated with an FD-OCC sequence of length 4. When the configuration field A of the third configuration information indicates that channel estimation is performed based on the FD-OCC sequence with the length of 2 as a despreading hypothesis; when the configuration field B of the third configuration information, it means channel estimation based on the FD-OCC sequence of length 4 as a despreading hypothesis.

It should be noted that, when the first type port performs channel estimation based on the FD-OCC sequence with length of 4 as a despreading hypothesis, the method further includes excluding a part of specific values, where the first type port corresponding to the specific value is from a plurality of CDM groups, and at this time, the first type port corresponding to the specific value performs channel estimation based on the FD-OCC sequence with length of 2 as a despreading hypothesis. For example, the case where value is 9, 10, 11 in table 3 is excluded.

Example five

TABLE 4 third indicator

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Wherein 38 numerical terms are included, wherein 24 terms correspond to the information of the first type of ports (i.e., port 0, port 1, port 2, and port 3), 10 terms correspond to the information of the second type of ports (i.e., port 8, port 9, port 12, and port 13), and 4 terms correspond to the information of the first type of ports and the second type of ports, i.e., the DMRS port corresponding to the numerical term includes the first type of ports and the second type of ports (e.g., numerical terms 34-37).

TABLE 4A third indicator

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Or alternatively

Table 4B third indicator

Or alternatively

TABLE 4C third indicator

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Or alternatively

Table 4D third indicator

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Or alternatively

Table 4E third indicator

In this embodiment, for table 4 or table 4A or 4B, the first despreading assumption should be made when the value corresponding to the numerical term is equal to or less than a; and when the value corresponding to the value item is greater than or equal to A, corresponding to a second despreading assumption, wherein A=11. Namely, the default agreed value items 0-11 of the network side and the terminal correspondingly carry out channel estimation based on the FD-OCC sequence with the length of 2 as a despreading hypothesis, and the rest value items correspondingly carry out channel estimation based on the FD-OCC sequence with the length of 4 as a despreading hypothesis.

In this embodiment, for table 4C or 4D or 4E, the first despreading assumption should be made when the value corresponding to the numerical term is equal to or less than a; and when the value corresponding to the value item is greater than or equal to A, corresponding to a second despreading assumption, wherein A=12. Namely, the default agreed value items 0-12 of the network side and the terminal correspondingly carry out channel estimation based on the FD-OCC sequence with the length of 2 as a despreading hypothesis, and the rest value items correspondingly carry out channel estimation based on the FD-OCC sequence with the length of 4 as a despreading hypothesis.

Example six

TABLE 5 third indicator

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TABLE 5A third indicator

/>

Or alternatively

TABLE 5B third indicator

Or alternatively

TABLE 5C third indicator

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Or alternatively

Table 5D third indicator

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Or alternatively

Table 5E third indicator

The default third table carries a despreading hypothesis identifier, for example, the despreading hypothesis identifier is FD-occ=2 or FD-occ=4 (may be other fields, which are exemplified herein). For table 5 or table 5A or table 5B, the numerical terms 0 to 11 correspond to channel estimation based on the FD-OCC sequence of length 2 as a despreading hypothesis, and the remaining numerical terms correspond to channel estimation based on the FD-OCC sequence of length 4 as a despreading hypothesis. For table 5C or table 5D or table 5E, the numerical terms 0-12 correspond to channel estimation based on the FD-OCC sequence of length 2 as a despreading hypothesis, and the remaining numerical terms correspond to channel estimation based on the FD-OCC sequence of length 4 as a despreading hypothesis.

Example seven

In this embodiment, the configuration type of the DMRS is related to the DMRS configuration type 1, and the DMRS is in a single symbol structure, which is taken as an example, to exemplify the fourth indicator table. When the DMRS configuration type of the PDSCH is related to DMRS configuration type 1, the maximum symbol length (maxlength) of the DMRS is 1, and the PDSCH corresponding double codeword is enabled, the fourth indication table is as follows:

TABLE 6 fourth indicator

The DMRS port includes a first type port and a second type port, wherein the DMRS port includes 4 numerical terms, and the 4 numerical terms correspond to information of the first type port and the second type port.

Example eight

It should be noted that, in the second to seventh embodiments, only the DMRS configuration type of PDSCH is related to the DMRS configuration type 1, the maximum symbol length (maximum) of the DMRS is 1, and the PDSCH is enabled corresponding to a single codeword or a double codeword. For other cases, for example, related to DMRS configuration type 2, the maximum symbol length of the DMRS is 2, and the case that the DMRS corresponds to PUSCH transmission is applicable.

The method for indicating DMRS port information according to the embodiment of the present application is described in detail above in conjunction with fig. 2. A method of indicating DMRS port information according to another embodiment of the present application will be described in detail with reference to fig. 4. It will be appreciated that the interaction of the network side device with the terminal described from the network side device is the same as or corresponds to the description of the terminal side in the method shown in fig. 2, and the relevant description is omitted as appropriate to avoid repetition.

Fig. 4 is a schematic flow chart of an implementation of an indication method of DMRS port information in an embodiment of the present application, which may be applied to a network side device. As shown in fig. 4, the method 400 includes the following steps.

S402: the network side equipment sends target indication information; the target indication information is used for indicating a target value item in X value items of a target indication table, the target value item corresponds to information of a DMRS port used by a terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer.

Optionally, as an embodiment, the first type of port and the second type of port satisfy at least one of:

1) The port index of the second type port is greater than or equal to the port index of the first type port.

2) The second type of port and the first type of port belong to different CDM groups.

3) The second type of port corresponds to a different FD-OCC sequence than the first type of port.

4) The second type of port corresponds to a different TD-OCC sequence than the first type of port.

Optionally, as an embodiment, the target indication table includes one of:

Optionally, as an embodiment, the method further includes: the network side equipment sends first configuration information, wherein the first configuration information is used for indicating the target indication table used by the terminal or is used for indicating the terminal to switch the target indication table.

Optionally, as an embodiment, the switching the target indication table includes one of: 1) Switching between the first indicator table and the second indicator table; 2) Switching between the first indicator and the third indicator; 3) And switching between the first indication table and the fourth indication table.

Optionally, as an embodiment, the method further includes: the network side equipment receives first capability information, wherein the first capability information is used for indicating whether the terminal supports the second type port or not.

Optionally, as an embodiment, in a case that the terminal does not support the second type port, the terminal supports only the first indication table configured; in the case where the terminal supports the second type of port, the terminal support is configured to at least one of: the first indicator, the second indicator, the third indicator and the fourth indicator.

According to the method for indicating the DMRS port information, provided by the embodiment of the application, the execution subject can be an indication device of the DMRS port information. In the embodiment of the present application, an example is given of a method for indicating DMRS port information by using an apparatus for indicating DMRS port information, which is provided by the embodiment of the present application.

Fig. 5 is a schematic structural diagram of an apparatus for indicating DMRS port information according to an embodiment of the present application, which may correspond to a terminal in other embodiments. As shown in fig. 5, the apparatus 500 includes the following modules.

A communication module 502, configured to receive target indication information; the target indication information is used for indicating a target value item in X value items of a target indication table, the target value item corresponds to information of a DMRS port used by the device, the DMRS port used by the device comprises a first type port and/or a second type port, and X is a positive integer.

The communication module 502 is further configured to perform data transmission or data reception according to the information of the DMRS port.

Optionally, the apparatus further comprises a processing module.

Optionally, as an embodiment, the target indication table includes one of:

Optionally, as an embodiment, the communication module 502 is further configured to receive first configuration information, where the first configuration information is used to indicate the target indication table used by the device, or is used to instruct the device to switch the target indication table.

Optionally, as an embodiment, the communication module 502 is further configured to report first capability information, where the first capability information is used to indicate whether the device supports the second type of port.

Optionally, as an embodiment, in a case that the apparatus does not support the second type port, the apparatus supports only configuring the first indication table; in the case where the device supports the second type of port, the device support is configured to at least one of: the first indicator, the second indicator, the third indicator and the fourth indicator.

Optionally, as an embodiment, the apparatus further includes a processing module configured to confirm a despreading assumption corresponding to channel estimation of the DMRS port by one of:

1) And the first configuration information is used for indicating the target indication table used by the terminal or indicating the terminal to switch the target indication table, wherein the first configuration information has a corresponding relation with the despreading hypothesis.

2) And the second configuration information comprises a scrambling code identification ID of the DMRS, wherein the scrambling code ID and the despreading hypothesis have a corresponding relation.

3) And third configuration information, wherein the third configuration information has a corresponding relation with the despreading hypothesis.

4) And the despreading instruction information comprises information corresponding to a specific instruction domain in downlink control information DCI, wherein the information corresponding to the specific instruction domain has a corresponding relation with the despreading hypothesis.

5) And the numerical value corresponding to the numerical value item of the target indication table has a corresponding relation with the despreading assumption.

7) And a despreading hypothesis identification in the target indication table, wherein the despreading hypothesis identification has a corresponding relation with the despreading hypothesis.

8) Time domain resource allocation information, wherein the time domain resource allocation information is used for determining time domain resource allocation of the data; and the time domain resource allocation information has a corresponding relation with the despreading assumption.

9) Default rules that apply to the DRMS ports in all or part of the numerical entries in the target indication table.

Optionally, as an embodiment, the despreading assumption includes at least one of: 1) A first despreading hypothesis comprising the apparatus performing channel estimation based on an OCC sequence of length 2; 2) A second despreading hypothesis comprising the apparatus performing channel estimation based on an OCC sequence of length 4.

The apparatus 500 according to the embodiment of the present application may refer to the flow of the method 200 corresponding to the embodiment of the present application, and each unit/module in the apparatus 500 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 200, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

The indication device of the DMRS port information in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

Fig. 6 is a schematic structural diagram of an apparatus for indicating DMRS port information according to an embodiment of the present application, where the apparatus may correspond to a network side device in other embodiments. As shown in fig. 6, the apparatus 600 includes the following modules.

A communication module 602, configured to send target indication information; the target indication information is used for indicating a target value item in X value items of a target indication table, the target value item corresponds to information of a DMRS port used by a terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer.

Optionally, the apparatus further comprises a processing module.

Optionally, as an embodiment, the target indication table includes one of:

Optionally, as an embodiment, the communication module 602 is further configured to send first configuration information, where the first configuration information is used to indicate the target indication table used by the terminal, or is used to instruct the terminal to switch the target indication table.

Optionally, as an embodiment, the communication module 602 is further configured to receive first capability information, where the first capability information is used to indicate whether the terminal supports the second type of port.

The apparatus 600 according to the embodiment of the present application may refer to the flow of the method 400 corresponding to the embodiment of the present application, and each unit/module in the apparatus 600 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 400, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

The DMRS port information indicating device provided by the embodiment of the present application can implement each process implemented by the method embodiments of fig. 2 to 3, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

Optionally, as shown in fig. 7, the embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, where the memory 702 stores a program or an instruction that can be executed on the processor 701, for example, when the communication device 700 is a terminal, the program or the instruction implements each step of the above embodiment of the method for indicating DMRS port information when executed by the processor 701, and the same technical effects can be achieved. When the communication device 700 is a network side device, the program or the instruction implements each step of the above embodiment of the method for indicating DMRS port information when executed by the processor 701, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for receiving the target indication information; the target indication information is used for indicating a target numerical value item in X numerical value items of a target indication table, the target numerical value item corresponds to information of a DMRS port used by the terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer; and carrying out data transmission or data reception according to the information of the DMRS port. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 800 includes, but is not limited to: at least part of the components of the radio frequency unit 801, the network module 802, the audio output unit 803, the input unit 804, the sensor 805, the display unit 806, the user input unit 807, the interface unit 808, the memory 809, and the processor 810, etc.

Those skilled in the art will appreciate that the terminal 800 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 810 by a power management system for performing functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 804 may include a graphics processing unit (Graphics Processing Unit, GPU) 8041 and a microphone 8042, with the graphics processor 8041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. Touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two parts, a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 801 may transmit the downlink data to the processor 810 for processing; in addition, the radio frequency unit 801 may send uplink data to the network side device. In general, the radio frequency unit 801 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 809 may be used to store software programs or instructions and various data. The memory 809 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 809 may include volatile memory or nonvolatile memory, or the memory 809 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 809 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 810.

The radio frequency unit 801 may be configured to receive target indication information; the target indication information is used for indicating a target numerical value item in X numerical value items of a target indication table, the target numerical value item corresponds to information of a DMRS port used by the terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer; and carrying out data transmission or data reception according to the information of the DMRS port.

The terminal 800 provided in the embodiment of the present application may further implement each process of the embodiment of the method for indicating DMRS port information, and may achieve the same technical effects, so that repetition is avoided, and no description is repeated here.

The embodiment of the application also provides network side equipment which comprises a processor and a communication interface, wherein the communication interface is used for sending the target indication information; the target indication information is used for indicating a target value item in X value items of a target indication table, the target value item corresponds to information of a DMRS port used by a terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 9, the network side device 900 includes: an antenna 91, a radio frequency device 92, a baseband device 93, a processor 94 and a memory 95. The antenna 91 is connected to a radio frequency device 92. In the uplink direction, the radio frequency device 92 receives information via the antenna 91, and transmits the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes information to be transmitted, and transmits the processed information to the radio frequency device 92, and the radio frequency device 92 processes the received information and transmits the processed information through the antenna 91.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 93, and the baseband apparatus 93 includes a baseband processor.

The baseband device 93 may, for example, comprise at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 9, where one chip, for example, a baseband processor, is connected to the memory 95 through a bus interface, so as to invoke a program in the memory 95 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 96, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 900 of the embodiment of the present application further includes: instructions or programs stored in the memory 95 and executable on the processor 94, the processor 94 invokes the instructions or programs in the memory 95 to perform the methods performed by the modules shown in fig. 6 and achieve the same technical effects, and are not repeated here.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above embodiment of the method for indicating DMRS port information, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, the processes of the embodiment of the indication method of the DMRS port information can be realized, the same technical effect can be achieved, and the repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiment of the present application further provides a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above embodiment of the method for indicating DMRS port information, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides an indication system of the DMRS port information, which comprises: the terminal can be used for executing the steps of the indication method of the DMRS port information, and the network side equipment can be used for executing the steps of the indication method of the DMRS port information.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A method for indicating DMRS port information of a demodulation reference signal, comprising:

the terminal receives target indication information; the target indication information is used for indicating a target numerical value item in X numerical value items of a target indication table, the target numerical value item corresponds to information of a DMRS port used by the terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer;

and the terminal performs data transmission or data reception according to the information of the DMRS port.

2. The method of claim 1, wherein the first type of port and the second type of port satisfy at least one of:

the port index of the second type port is greater than or equal to the port index of the first type port;

the second type port and the first type port belong to different code division multiplexing CDM groups;

the second type port and the first type port correspond to different frequency division orthogonal cover code (FD-OCC) sequences;

the second type port corresponds to a different time division orthogonal cover code TD-OCC sequence than the first type port.

3. The method of claim 1, wherein the target indication table comprises one of:

A first indication table, wherein X number items of the first indication table correspond to the information of the first type port;

the system comprises a first indication table, a second indication table, a first control unit and a second control unit, wherein N pieces of information corresponding to a first type port and N pieces of information corresponding to a second type port in X numerical items of the first indication table are stored in the first indication table, N is a positive integer, and N is smaller than X;

the system comprises a first indication table, a second indication table, a third indication table, a fourth indication table and a fourth indication table, wherein M pieces of information corresponding to the first type port in X number items of the first indication table, P pieces of information corresponding to the second type port in X-M-P pieces of information corresponding to the first type port and the second type port are positive integers, and X is larger than the sum of M and P;

and the X number items of the fourth indication table correspond to the information of the first type port and the second type port.

4. A method according to claim 3, characterized in that the method further comprises: the terminal receives first configuration information, wherein the first configuration information is used for indicating the target indication table used by the terminal or is used for indicating the terminal to switch the target indication table.

5. The method of claim 4, wherein said switching said target indication table comprises one of:

Switching between the first indicator table and the second indicator table;

switching between the first indicator and the third indicator;

and switching between the first indication table and the fourth indication table.

6. A method according to claim 3, characterized in that the method further comprises: and the terminal reports first capability information, wherein the first capability information is used for indicating whether the terminal supports the second type port or not.

7. The method of claim 6, wherein the step of providing the first layer comprises,

in the case that the terminal does not support the second type port, the terminal supports only the configured first indication table;

in the case where the terminal supports the second type of port, the terminal support is configured to at least one of: the first indicator, the second indicator, the third indicator and the fourth indicator.

8. A method according to claim 1 or 3, characterized in that the method further comprises: the terminal confirms a despreading assumption corresponding to channel estimation of the DMRS port by one of:

the first configuration information is used for indicating the target indication table used by the terminal or used for indicating the terminal to switch the target indication table, wherein the first configuration information has a corresponding relation with the despreading hypothesis;

The second configuration information comprises a scrambling code identification ID of the DMRS, wherein the scrambling code ID and the despreading hypothesis have a corresponding relation;

third configuration information, wherein a corresponding relation exists between the third configuration information and the despreading hypothesis;

despreading indication information, wherein the despreading indication information comprises information corresponding to a specific indication domain in downlink control information DCI, and the information corresponding to the specific indication domain has a corresponding relation with the despreading hypothesis;

the value corresponding to the value item of the target indication table has a corresponding relation with the despreading assumption;

information of a DMRS port corresponding to a numerical item of the target indication table, wherein the information of the DMRS port and the despreading assumption have a corresponding relation;

a despreading hypothesis identification in the target indication table, wherein the despreading hypothesis identification and the despreading hypothesis have a corresponding relationship;

time domain resource allocation information, wherein the time domain resource allocation information is used for determining time domain resource allocation of the data, and a corresponding relation exists between the time domain resource allocation information and the despreading hypothesis;

Default rules that apply to the DRMS ports in all or part of the numerical entries in the target indication table.

9. The method of claim 8, wherein the despreading assumption comprises at least one of:

a first despreading hypothesis comprising channel estimation by the terminal based on an FD-OCC sequence of length 2;

a second despreading hypothesis comprising channel estimation by the terminal based on FD-OCC sequence of length 4.

10. The method for indicating the DMRS port information is characterized by comprising the following steps:

the network side equipment sends target indication information; the target indication information is used for indicating a target value item in X value items of a target indication table, the target value item corresponds to information of a DMRS port used by a terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer.

11. The method of claim 10, wherein the first type of port and the second type of port satisfy at least one of:

The second type port and the first type port belong to different CDM groups;

the second type port corresponds to a different FD-OCC sequence than the first type port;

the second type of port corresponds to a different TD-OCC sequence than the first type of port.

12. The method of claim 10, wherein the target indication table comprises one of:

13. The method according to claim 12, wherein the method further comprises: the network side equipment sends first configuration information, wherein the first configuration information is used for indicating the target indication table used by the terminal or is used for indicating the terminal to switch the target indication table.

14. The method of claim 13, wherein said switching said target indication table comprises one of:

switching between the first indicator table and the second indicator table;

switching between the first indicator and the third indicator;

15. The method according to claim 12, wherein the method further comprises: the network side equipment receives first capability information, wherein the first capability information is used for indicating whether the terminal supports the second type port or not.

16. The method of claim 15, wherein the step of determining the position of the probe is performed,

17. An apparatus for indicating DMRS port information, comprising:

the communication module is used for receiving the target indication information; the target indication information is used for indicating a target numerical value item in X numerical value items of a target indication table, the target numerical value item corresponds to information of a DMRS port used by the device, the DMRS port used by the device comprises a first type port and/or a second type port, and X is a positive integer;

and the communication module is also used for carrying out data transmission or data reception according to the information of the DMRS port.

18. The apparatus of claim 17, wherein the first type of port and the second type of port satisfy at least one of:

19. The apparatus of claim 17, wherein the target indication table comprises one of:

20. The apparatus of claim 19, wherein the communication module is further configured to receive first configuration information, the first configuration information being used to indicate the target indication table used by the apparatus or to instruct the apparatus to switch the target indication table.

21. The apparatus of claim 20, wherein said switching said target indication table comprises one of:

Switching between the first indicator table and the second indicator table;

switching between the first indicator and the third indicator;

22. The apparatus of claim 19, wherein the communication module is further configured to report first capability information, the first capability information being configured to indicate whether the apparatus supports the second type of port.

23. The apparatus of claim 22, wherein the device comprises a plurality of sensors,

in the case that the apparatus does not support the second type port, the apparatus supports only configuring the first indication table;

in the case where the device supports the second type of port, the device support is configured to at least one of: the first indicator, the second indicator, the third indicator and the fourth indicator.

24. The apparatus of claim 17 or 19, further comprising a processing module configured to confirm a despreading hypothesis corresponding to the channel estimation of the DMRS port by one of:

25. The apparatus of claim 24, wherein the despreading assumption comprises at least one of:

a first despreading hypothesis comprising channel estimation by the apparatus based on FD-OCC sequence of length 2;

a second despreading hypothesis comprising the apparatus performing channel estimation based on FD-OCC sequence of length 4.

26. An apparatus for indicating DMRS port information, comprising:

the communication module is used for sending target indication information; the target indication information is used for indicating a target value item in X value items of a target indication table, the target value item corresponds to information of a DMRS port used by a terminal, the DMRS port used by the terminal comprises a first type port and/or a second type port, and X is a positive integer.

27. The apparatus of claim 26, wherein the first type of port and the second type of port satisfy at least one of:

The second type port and the first type port belong to different CDM groups;

28. The apparatus of claim 26, wherein the target indication table comprises one of:

29. The apparatus of claim 28, wherein the communication module is further configured to send first configuration information, the first configuration information being used to indicate the target indicator used by the terminal or to instruct the terminal to switch the target indicator.

30. The apparatus of claim 29, wherein said switching said target indication table comprises one of:

switching between the first indicator table and the second indicator table;

switching between the first indicator and the third indicator;

31. The apparatus of claim 28, wherein the communication module is further configured to receive first capability information, the first capability information being configured to indicate whether the terminal supports the second type of port.

32. The apparatus of claim 31, wherein the device comprises a plurality of sensors,

33. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method of any one of claims 1 to 9.

34. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method of any of claims 10 to 16.

35. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the method according to any of claims 1 to 9 or the steps of the method according to any of claims 10 to 16.