WO2024012561A1

WO2024012561A1 - Method and apparatus for determining demodulation reference signal port, terminal device, and network device

Info

Publication number: WO2024012561A1
Application number: PCT/CN2023/107414
Authority: WO
Inventors: 王化磊
Original assignee: 北京紫光展锐通信技术有限公司
Priority date: 2022-07-15
Filing date: 2023-07-14
Publication date: 2024-01-18
Also published as: CN117478282A

Abstract

The present application relates to the technical field of communications, and discloses a method and apparatus for determining a demodulation reference signal port, a terminal device, and a network device. The method comprises: determining a DMRS port of each transmission parameter among a plurality of transmission parameters, wherein the plurality of transmission parameters comprise at least one of a plurality of TCI states, a plurality of SRS resources, a plurality of SRS resource sets, and a plurality of TRPs, and the plurality of transmission parameters are used for a PUSCH. In view of the possibility of supporting a PUSCH transmission scheme oriented towards a plurality of transmission parameters, that is, since the plurality of transmission parameters may be used for a PUSCH, and the plurality of transmission parameters comprise at least one of a plurality of TCI states, a plurality of SRS resources, a plurality of SRS resource sets, and a plurality of TRPs, the present application needs to determine a DMRS port of each transmission parameter among the plurality of transmission parameters so as to implement the possibility of PUSCH transmission for the plurality of transmission parameters from the perspective of DMRS ports.

Description

Demodulation reference signal port determination method and device, terminal equipment and network equipment

Technical field

The present application relates to the field of communication technology, and in particular to a method and device for determining a demodulation reference signal port, terminal equipment and network equipment.

Background technique

Currently, the standard protocol specified by the 3rd Generation Partnership Project (3GPP) involves physical uplink shared channel (PUSCH) transmission.

However, as the standard protocols developed by 3GPP continue to evolve or communication scenarios change, some new PUSCH transmission schemes will be introduced. At this time, further research is needed on the demodulation reference signal (DMRS) port in the new PUSCH transmission scheme.

Contents of the invention

This application provides a demodulation reference signal port determination method and device, terminal equipment and network equipment, in order to solve the problem of determining DMRS ports for each of multiple transmission parameters, so as to realize multiple transmissions from the perspective of DMRS ports. Possibility of PUSCH transmission of parameters.

The first aspect is a demodulation reference signal port determination method of the present application, including:

Determining a demodulation reference signal DMRS port for each of a plurality of transmission parameters, the plurality of transmission parameters including a plurality of transmission configuration indication TCI states, a plurality of sounding reference signal SRS resources, a plurality of SRS resource sets, a plurality of transmission Receive at least one item in the point TRP, and the plurality of transmission parameters are used for the physical uplink shared channel PUSCH.

It can be seen that for PUSCH, the PUSCH transmission scheme for multiple transmission parameters may be supported, that is, multiple transmission parameters can be used for PUSCH, and the multiple transmission parameters include multiple TCI states, multiple SRS resources, and multiple SRS resource sets. , at least one of multiple TRPs, so this application needs to determine the DMRS port of each transmission parameter among the multiple transmission parameters, so as to realize the possibility of PUSCH transmission for multiple transmission parameters from the perspective of DMRS ports.

The second aspect is a demodulation reference signal port determination device of the present application, including:

Determining unit, configured to determine the demodulation reference signal DMRS port of each transmission parameter in a plurality of transmission parameters, the plurality of transmission parameters including a plurality of transmission configuration indication TCI states, a plurality of sounding reference signal SRS resources, a plurality of SRS resources At least one of a set and a plurality of transmitting and receiving points TRP, the plurality of transmission parameters being used for the physical uplink shared channel PUSCH.

In a third aspect, the steps in the method designed in the first aspect are applied to terminal equipment or terminal equipment.

In a fourth aspect, the steps in the method designed in the first aspect are applied to network equipment or network equipment.

The fifth aspect is a terminal device of the present application, including a processor, a memory, and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the first aspect. Steps in the designed method.

The sixth aspect is a network device of the present application, including a processor, a memory, and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the first aspect. Steps in the designed method.

A seventh aspect is a chip of the present application, including a processor and a communication interface, wherein the processor executes the steps in the method designed in the first aspect.

The eighth aspect is a chip module of the present application, including a transceiver component and a chip. The chip includes a processor, wherein the processor executes the steps in the method designed in the first aspect.

A ninth aspect is a computer-readable storage medium of the present application, which stores a computer program or instructions, and when the computer program or instructions are executed, the steps in the method designed in the first aspect are implemented.

A tenth aspect is a computer program product of the present application, including a computer program or instructions, wherein when the computer program or instructions are executed, the steps in the method designed in the first aspect are implemented.

An eleventh aspect is a communication system of the present application, including the terminal device in the seventh aspect and the network device in the eighth aspect.

The beneficial effects brought by the technical solutions of the second to eleventh aspects can be referred to the technical effects brought by the technical solutions of the first aspect, which will not be described again here.

Description of drawings

In order to explain the technical solutions in the embodiments of the present application more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below.

Figure 1 is an architectural schematic diagram of a communication system according to an embodiment of the present application;

Figure 2 is a schematic flow chart of a method for determining a demodulation reference signal port according to an embodiment of the present application;

Figure 3 is a functional unit block diagram of a demodulation reference signal port determination device according to an embodiment of the present application;

Figure 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

Figure 5 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed ways

It should be understood that the terms "first", "second", etc. involved in the embodiments of this application are used to distinguish different objects, rather than describing a specific sequence. Furthermore, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, software, product or device that includes a series of steps or units is not limited to the listed steps or units, but also includes unlisted steps or units, or also includes the steps or units for these processes, methods. , other steps or units inherent to the product or equipment.

Reference to "embodiment" in the embodiments of the present application means that a specific feature, structure or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

“And/or” in the embodiment of this application describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and/or B can represent the following three situations: A exists alone; A and B exist simultaneously; B exists alone. Among them, A and B can be singular or plural.

In the embodiment of the present application, the symbol "/" can indicate that the related objects are an "or" relationship. In addition, the symbol "/" can also represent the division sign, that is, performing division operations. For example, A/B can mean A divided by B.

“At least one item (item)” or similar expressions in the embodiments of this application refers to any combination of these items, including any combination of single item (items) or plural items (items); refers to one or more, Multiple means two or more. For example, at least one of a, b or c can represent the following seven situations: a, b, c, a and b, a and c, b and c, a, b and c. Among them, each of a, b, and c can be an element or a set containing one or more elements.

In the embodiments of this application, "equal to" can be used in conjunction with "greater than" and is applicable to the technical solutions adopted when "greater than"; "equal to" can be used in conjunction with "less than" and is applicable to the technical solutions adopted when "less than" . When "equal to" is used with "greater than", it is not used with "less than"; when "equal to" is used with "less than", it is not used with "greater than".

In the embodiments of this application, "associated with" may be associated with "of", "corresponding/relevant to", "corresponding to", "indicated", "mapping ( mapping)" etc. can sometimes be used interchangeably, or represent the same concept/meaning.

"Connection" in the embodiments of this application refers to various connection methods such as direct connection or indirect connection to realize communication between devices, and there is no limitation on this.

"Network" in the embodiments of this application may be sometimes used interchangeably with "system", or may represent the same concept/meaning. A communication system is a communication network.

"Size" in the embodiments of this application may be sometimes used interchangeably with "length", or may represent the same concept/meaning.

"Number" in the embodiments of this application may be sometimes mixed with "number", "number", etc., or may represent the same concept/meaning.

In the embodiments of this application, "comprise" may sometimes be used interchangeably with "include", "carry", "carry", etc., or may represent the same concept/meaning.

"Configuration" in the embodiments of this application may sometimes be used interchangeably with "instruction", or may represent the same concept/meaning.

In the embodiments of this application, "oriented" may sometimes be mixed with "used for", "aimed at", "associated with", "based on", "belonging to", etc., or may represent the same concept/meaning.

The following describes the relevant content, concepts, meanings, technical issues, technical solutions, beneficial effects, etc. involved in the embodiments of the present application.

1. Communication systems, terminal equipment and network equipment

1. Communication system

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (Advanced Long Term Evolution) , LTE-A) system, New Radio (NR) system, evolution system of NR system, LTE (LTE-based Access to Unlicensed Spectrum, LTE-U) system on unlicensed spectrum, NR on unlicensed spectrum (NR-based Access to Unlicensed Spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks, WLAN), Wireless Fidelity (Wi-Fi), 6th-Generation (6G) communication system or other communication systems, etc.

It should be noted that traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can not only support traditional communication systems, but also support device-to-device (D2D) communication, machine-to-machine (M2M) communication, and machine-type communication. (machine type communication, MTC), vehicle to vehicle (V2V) communication, vehicle to everything (V2X) communication, narrowband internet of things (NB-IoT) communication, etc., therefore this application The technical solutions of the embodiments can also be applied to the above communication system.

In addition, the technical solutions of the embodiments of this application can be applied to beamforming, carrier aggregation (CA), dual connectivity (DC) or standalone (SA) deployment scenarios.

In the embodiment of the present application, the spectrum used for communication between the terminal device and the network device, or the spectrum used for communication between the terminal device and the terminal device, may be a licensed spectrum or an unlicensed spectrum, which is not limited. In addition, unlicensed spectrum can be understood as shared spectrum, and licensed spectrum can be understood as unshared spectrum.

Since the embodiments of this application describe various embodiments in conjunction with terminal equipment and network equipment, the involved terminal equipment and network equipment will be described in detail below.

2. Terminal equipment

Terminal equipment can be a device with receiving and/or transmitting functions, and can also be called terminal, user equipment (UE), remote terminal equipment (remote UE), relay equipment (relay UE), interface Input terminal equipment, subscriber unit, subscriber station, mobile station, mobile station, remote station, mobile equipment, user terminal equipment, intelligent terminal equipment, wireless communication equipment, user agent or user device. It should be noted that a relay device is a terminal device that can provide relay and forwarding services for other terminal devices (including remote terminal devices).

For example, the terminal device can be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, an industrial control ( Wireless terminal equipment in industrial control, wireless terminal equipment in unmanned autonomous driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, and transportation safety Wireless terminal equipment, wireless terminal equipment in smart city (smart city) or wireless terminal equipment in smart home (smart home), etc.

For another example, the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (personal digital assistant, PDA), Handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in next-generation communication systems (such as NR communication systems, 6G communication systems) or public utilities in future evolutions Terminal equipment in the land mobile communication network (public land mobile network, PLMN), etc., are not specifically limited.

In some possible implementations, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can be deployed on water (such as ships, etc.); can be deployed in the air (such as aircraft, balloons, satellites, etc.) .

In some possible implementations, the terminal device may include a device with a wireless communication function, such as a chip system, a chip, and a chip module. For example, the chip system may include a chip and may also include other discrete devices.

3. Network equipment

A network device may be a device with receiving and/or sending functions, used for communicating with terminal devices.

In some possible implementations, network equipment can be responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, data sending and receiving, etc. on the air interface side.

In some possible implementations, the network device may be a base station (BS) in the communication system or a device deployed in a radio access network (RAN) to provide wireless communication functions.

For example, the network device may be an evolved node B (eNB or eNodeB) in the LTE communication system, a next generation evolved node B (ng-eNB) in the NR communication system, NR The next generation node B (gNB) in the communication system, the master node (MN) in the dual connection architecture, the second node or secondary node (SN) in the dual connection architecture, etc., There are no specific restrictions on this.

In some possible implementations, the network equipment can also be equipment in the core network (core network, CN), such as access and mobility management function (AMF), user plane function (UPF) ), etc.; it can also be access point (AP), relay station in WLAN, communication equipment in the future evolved PLMN network, communication equipment in NTN network, etc.

In some possible implementations, the network device may include a device that provides wireless communication functions for terminal devices, such as a chip system, a chip, and a chip module. For example, the chip system may include a chip, or may include other discrete devices.

In some possible implementations, the network device may be a transmission and reception point (TRP).

In some possible implementations, the network device can communicate with an Internet Protocol (Internet Protocol, IP) network. For example, the Internet, private IP network or other data network.

In some possible implementations, the network device may be an independent node to implement the functions of the above-mentioned base station, or the network device may include two or more independent nodes to implement the functions of the above-mentioned base station. For example, network equipment includes centralized units (CU) and distributed units (DU), such as gNB-CU and gNB-DU. Further, in other embodiments of the present application, the network device may also include an active antenna unit (active antenna unit, AAU). Among them, CU implements part of the functions of network equipment, and DU implements another part of the functions of network equipment. For example, CU is responsible for processing non-real-time protocols and services, implementing the radio resource control (RRC) layer, service data adaptation protocol (SDAP) layer, and packet data convergence protocol (PDCP) layer function. DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, medium access control (MAC) layer and physical (physical, PHY) layer. In addition, AAU can realize some physical layer processing functions, radio frequency processing and active antenna related functions. Since RRC layer information will eventually become PHY layer information, or converted from PHY layer information, under this network deployment, high-level signaling (such as RRC signaling) can be considered to be sent by DU, or Sent jointly by DU and AAU. It can be understood that the network device may include at least one of CU, DU, and AAU. In addition, the CU may be divided into network devices in the RAN, or the CU may be divided into network devices in the core network, without specific limitations.

In some possible implementations, the network device can be any site in a multi-site that performs coherent joint transmission (CJT) with the terminal device, or other sites outside the multi-site, or other sites that are related to the terminal device. Network equipment for network communication, there are no specific restrictions on this. Among them, multi-site coherent cooperative transmission can be joint coherent transmission for multiple sites, or different data belonging to the same physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) is sent from different sites to the terminal equipment, or multiple sites are virtualized. For transmission by a site, names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in multi-site coherent cooperative transmission can be Radio Frequency Remote Head (RRH), TRP, etc., and there are no specific restrictions on this.

In some possible implementations, the network device may be any one of the multiple sites that perform non-coherent cooperative transmission with the terminal device, or other sites outside the multi-site, or other network devices that perform network communication with the terminal device. , there is no specific restriction on this. Among them, multi-site non-coherent cooperative transmission can be joint non-coherent transmission by multiple sites, or different data belonging to the same PDSCH is sent from different sites to the terminal equipment. Names with the same meaning specified in other standards are also applicable to this application. That is, this application does not limit the names of these parameters. The stations in multi-site non-coherent cooperative transmission can be RRH, TRP, etc., and there is no specific limitation on this.

It should be noted that the TRP of this application is not limited to coherent coordinated transmission or non-coherent coordinated transmission scenarios, and can also be applied to other scenarios, without specific limitations.

In some possible implementations, the network device may have mobile characteristics, for example, the network device may be a mobile device. Optionally, the network device can be a satellite or balloon station. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) ) satellite, etc. Optionally, the network device may also be a base station installed on land, water, etc.

In some possible implementations, network equipment can provide services for a cell, and terminal equipment in the cell can communicate with the network equipment through transmission resources (such as spectrum resources). Among them, the cell can be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, a femto cell, etc.

4. Example description

An exemplary description of the communication system according to the embodiment of the present application is given below.

For an exemplary network architecture of a communication system according to the embodiment of the present application, see Figure 1 . As shown in FIG. 1 , the communication system 10 may include a network device 110 , a network device 120 and a terminal device 130 . The terminal device 130 may communicate with the network device 110 and the network device 120 in a wireless manner.

FIG. 1 is only an illustration of the network architecture of a communication system, and does not limit the network architecture of the communication system in the embodiment of the present application. For example, in this embodiment of the present application, the communication system may also include a server or other devices. For another example, in this embodiment of the present application, the communication system may include multiple network devices and/or multiple terminal devices.

2. A method for determining the port of demodulation reference signal (DMRS)

In New Radio (NR) version 18 (Release 18, R18) or future protocol versions, for PUSCH, physical uplink for (for/for/associated with/based on/belonging to, etc.) multiple transmission parameters may be supported Shared channel (Physical Uplink Shared Channel, PUSCH) transmission, that is, multiple transmission parameters can be used for PUSCH, or multiple transmission parameters can be used for PUSCH transmission, etc.

In this embodiment of the present application, multiple transmission parameters may include multiple transmission configuration indicator (TCI) states, multiple sounding reference signal (Sounding reference signal, SRS) resources, multiple SRS resource sets ( At least one of SRS resource set), multiple transmission and reception points (transmission and reception point, TRP), etc. Of course, TCI status, SRS resources or SRS resource sets can also be regarded as the concept of TRP.

It should be noted that for PUSCH transmission oriented to multiple transmission parameters, this application needs to determine each transmission parameter in the multiple transmission parameters. DMRS port for transmitting parameters, so as to realize the possibility of PUSCH transmission for multiple transmission parameters from the perspective of DMRS port.

The following describes the technical solutions, beneficial effects, concepts, etc. involved in the embodiments of the present application.

1. Multiple transmission parameters

1) Concept

In the embodiment of the present application, multiple transmission parameters can be understood as parameters or information used to characterize PUSCH transmission in the air domain, spatial dimension, time domain, frequency domain or power domain, etc.

During specific implementation, the multiple transmission parameters may include at least one of multiple TCI states, multiple SRS resources, multiple SRS resource sets, multiple TRPs, etc. That is to say, a transmission parameter may include at least one of a TCI status, an SRS resource, an SRS resource set, a TRP, etc. In other words, the transmission parameters may include at least one of TCI status, SRS resources, SRS resource sets, TRP, etc.

For example, the multiple transmission parameters may include at least one of 2 TCI states, 2 SRS resources, 2 SRS resource sets, and 2 TRPs.

2)TRP

In the embodiment of this application, TRP can be characterized by TCI status, SRS resources, SRS resource sets or spatial information (spatial information), etc.

In other words, TCI status, SRS resources, SRS resource sets or airspace information can also be regarded as the concept of TRP.

It should be noted that the TRP in this application can be associated with airspace information or slot directions (such as one or a group of beams); or, TRP can be characterized by airspace information or slot directions (such as one or a group of beams); or, TRP It can be characterized by power control parameters. In addition, the TRP in this application can be a functional module (for example, implemented using software functions), or it can be implemented through hardware. This application does not limit the implementation method of the TRP.

3)TCI status

In this embodiment of the present application, the network device can configure multiple TCI states to the terminal device.

It should be noted that the TCI status may include Quasi Co-Location (QCL) type D (QCL-typeD). Among them, QCL-typeD can include spatial reception parameters, etc. The spatial reception parameters may include at least one of the following: receiving angle of arrival (angle of arival, AOA), average AOA, AOA spread, transmitting angle of departure (angle of departure, AOD), average AOD, AOD spread, receiving antenna spatial correlation, Transmitting antenna spatial correlation, transmitting beam, receiving beam, resource identification, etc.

It should be noted that the TCI status can be the unified TCI status in version 17 (Release 17, R17), or the unified TCI status in other protocol versions, etc. This article does not impose specific restrictions on this.

In some possible implementations, the unified TCI state function may include the common TCI state of the downlink and the uplink (referred to as the joint mechanism). Of course, other terms may also be used to describe it, such as the first mechanism. In this regard, Without specific limitations, the Joint mechanism will be used for explanation below), and/or the different TCI states of the downlink and the uplink (referred to as the Separate mechanism). Of course, other terms can also be used to describe it, such as the second mechanism, etc. There are no specific restrictions on this, and the Separate mechanism will be used to explain it below).

Among them, the Joint mechanism may mean that one TCI state can be applied to part or all of the downlink channels/signals, and part or all of the uplink channels/signals. The Separate mechanism may mean that the two TCI states are respectively applicable to some or all downlink channels/signals, and some or all uplink channels/signals.

4)SRS resources

In this embodiment of the present application, the network device may configure multiple SRS resources to the terminal device. SRS resources can be used for channel quality estimation, thereby enabling frequency selective scheduling, beam management, etc. in the uplink. It can be understood that multiple SRS resources may belong to different SRS resource sets.

5)SRS resource set

In this embodiment of the present application, the network device may configure one or more SRS resource sets to the terminal device. Each SRS resource set can contain one or more SRS resources. The network device may configure multiple SRS resource sets for the terminal device for various purposes, such as uplink and downlink multi-antenna precoding, uplink and downlink beam management, etc.

The usage of the SRS resource set is configured or indicated as 'codebook' or 'nonCodebook'.

For example, the network device can configure two SRS resource sets with usage of 'codebook', or configure two SRS resource sets with usage of 'nonCodebook'.

It should be noted that the downlink control information (DCI) may include an SRS resource set indicator (SRS resource set indicator) field.

When txConfig=nonCodebook, there are two SRS resource sets configured by the high-level parameter srs-ResourceSetToAddModList, and the usage of these two SRS resource sets is 'nonCodebook'.

When txConfig=codebook, there are two SRS resource sets configured by the high-level parameter srs-ResourceSetToAddModList, and the usage of these two SRS resource sets is 'codebook'.

For example, Table 1 shows the case where the SRS resource set indication field is 2 bits.

Table 1

It should be noted that for codebook-based PUSCH transmission, the number of layers (number of transmission layers) used for PUSCH transmission can be obtained through Precoding information and number of layers field, Second Precoding information and number of layers field or Second Precoding information field.

For PUSCH transmission based on non-codebook, the number of layers (number of transmission layers) used for PUSCH transmission can be obtained through the SRS resource indicator field or the Second SRS resource indicator field.

2. DMRS port for transmitting parameters

It should be noted that since DMRS can be used for PUSCH, or for PUSCH demodulation or for PUSCH transmission, and transmission parameters can also be used for PUSCH or for PUSCH transmission, there can be an association between the transmission parameters and the DMRS port. (correspondence) relationship. The association relationship can be predefined through network configuration, preconfiguration or protocol.

Based on this, the DMRS port of the transmission parameter can be understood as the DMRS port associated with the transmission parameter, or the DMRS port corresponding to the transmission parameter, etc.

3. The first transmission parameter, the second transmission parameter, etc. among multiple transmission parameters

It should be noted that this application can configure/instruct which transmission parameter among multiple transmission parameters is the "first transmission parameter", which transmission parameter is the "second transmission parameter" through the network, and so on.

Alternatively, this application can determine which transmission parameter among multiple transmission parameters is the "first transmission parameter", which transmission parameter is the "second transmission parameter", and so on, without specific limitations.

For example, the network may configure its own identification (ID) to each of the plurality of transmission parameters. Therefore, this application can refer to the transmission parameter with the smallest ID value as the "first transmission parameter", and the transmission parameter with the second smallest ID value as the "second transmission parameter", and so on; or, this application can refer to The transmission parameter with the largest ID value is called the "first transmission parameter", the transmission parameter with the second largest ID value is called the "second transmission parameter", and so on; there are no specific restrictions on this.

For another example, taking multiple transmission parameters including multiple SRS resource sets as an example, the first transmission parameter is the first SRS resource set, the second transmission parameter is the second SRS resource set, and the rest are similar; among them, the The ID corresponding to one SRS resource set is the smallest, and the ID corresponding to the second SRS resource set is the second smallest. The rest are similar and will not be described again.

For another example, taking multiple transmission parameters including multiple SRS resources, the first transmission parameter is the SRS resource indicator field. The associated SRS resource. The second transmission parameter is the SRS resource associated with the Second SRS resource indicator field. The rest are similar and will not be described again.

4. The number of layers corresponding to each of the multiple transmission parameters (number of transmission layers)

It should be noted that the network can configure (indicate) the number of transmission layers corresponding to each transmission parameter through high-level parameters (high-level signaling)/DCI. This number of transmission layers is used for PUSCH transmission, and the number of transmission layers can be configured through other high-level parameters. (Higher layer signaling) configuration (instruction).

For example, taking multiple parameters including two SRS resource sets as an example, the network uses the SRS resource set indicator field in DCI to indicate at least one of the SRS resource indicator field, Precoding information and number of layers field to associate the first SRS resource set, and/or at least one of the Second SRS resource indicator field, Second Precoding information and number of layers field, and Second Precoding information field to associate with the second SRS resource set.

Since at least one of the SRS resource indicator field, Precoding information and number of layers field can indicate the number of transmission layers used for PUSCH transmission, the number of transmission layers corresponding to the first SRS resource set can include the SRS resource indicator field, The number of transmission layers indicated by at least one of the Precoding information and number of layers field.

Since at least one of the Second SRS resource indicator field, Second Precoding information and number of layers field, and Second Precoding information field can indicate the number of transmission layers used for PUSCH transmission, the number of transmission layers corresponding to the second SRS resource set can be Including the number of transport layers indicated by at least one of Second SRS resource indicator field, Second Precoding information and number of layers field, and Second Precoding information field.

In addition, it should be noted that the number of transmission layers corresponding to each transmission parameter among the plurality of transmission parameters may be equal to the number of DMRS ports for each transmission parameter.

For example, taking two SRS resource sets with multiple transmission parameters as an example, if the number of transmission layers corresponding to the first SRS resource set is 2, and the number of transmission layers corresponding to the second SRS resource set is 3, then the number of transmission layers corresponding to the first SRS resource set is 3. The number of DMRS ports of the SRS resource set is 2, and the number of DMRS ports of the second SRS resource set is 3.

5. PUSCH for multiple transmission parameters

In the embodiment of the present application, the PUSCH oriented to multiple transmission parameters may be one PUSCH oriented to multiple transmission parameters, or may be multiple PUSCH oriented to multiple transmission parameters, etc. Among them, the PUSCH can be a configured grant PUSCH, a scheduled (activated) PUSCH, or a PUSCH of the same transport block (TB), and there is no specific restriction on this.

For the scheduled (or triggered) PUSCH, it can be understood that the network device can schedule (or trigger) the PUSCH through the DCI carried by the PDCCH.

For configured grant PUSCH, it can be understood that the network device can determine the PUSCH of configured grant type 1 (CG Type 1) through high-level information (such as high-level parameter ConfiguredGrantConfig); or, the network device can activate/deactivate through DCI Activate PUSCH configured grant Type 2, CG Type2.

It should be noted that for scheduled PUSCH, PUSCH oriented to multiple transmission parameters can be understood as PUSCH oriented to multiple transmission parameters based on a single DCI.

For PUSCH configured with authorization, PUSCH oriented to multiple transmission parameters can be understood as PUSCH oriented to multiple transmission parameters based on configuration authorization.

6. A PUSCH is associated with multiple transmission parameters

In this embodiment of the present application, PUSCH oriented to multiple transmission parameters can be understood as one PUSCH associated with multiple transmission parameters. In other words, a PUSCH is associated with different transmission parameters.

For example, taking multiple transmission parameters including 2 TRPs as an example, the network configures 2 TRPs, and one PUSCH is associated with the 2 TRPs. Therefore, the PUSCH may be transmitted for the two TRPs. Among them, each TRP is associated with a TCI status/SRS resource/SRS resource set, etc.

As another example, taking multiple transmission parameters including two TCI states as an example, the network configures two TCI states, and configures a PUSCH associated with the two TCI states. Therefore, the PUSCH may be transmitted for the two TCI states.

For another example, taking multiple transmission parameters including two SRS resources as an example, the network configures two SRS resource sets, and configures one PUSCH to associate with the two SRS resources. Therefore, the PUSCH may be transmitted for the two SRS resources.

For another example, taking multiple transmission parameters including two SRS resource sets as an example, the network configures two SRS resource sets, and configures one PUSCH to associate with the two SRS resource sets. Therefore, the PUSCH may be transmitted for the two SRS resource sets.

In some possible implementations, embodiments of the present application can configure the association between a PUSCH and multiple transmission parameters through high-layer signaling.

7. PUSCH transmission for multiple transmission parameters

In the embodiment of this application, PUSCH transmission for multiple transmission parameters can be expressed as follows:

The codepoint value of the SRS resource set indication field in DCI is '10' or '11'; and/or,

The number of TCI states (or unified TCI states, etc.) indicated by DCI that can be used for uplink is multiple; for example, the number of TCI states indicated by DCI is 2; and/or,

For PUSCH configured with authorization type 1, the network configuration information includes 2 SRS resource indications. It should be noted that, taking the configuration of two SRS resource sets as an example, it can be seen from Table 1 that if the code point value of the SRS resource set indicator field in DCI is '10' or '11', then the SRS resource indicator field, Precoding At least one of the information and number of layers field can be associated with the first SRS resource set; and/or, at least one of the Second SRS resource indicator field, Second Precoding information and number of layers field, and Second Precoding information field item, which can be associated with the second SRS resource set;

If the code point value of the SRS resource set indication field in DCI is '10', the first SRS resource set can be associated with the first PUSCH transmission opportunity, and the second SRS resource set can be associated with the second PUSCH transmission opportunity;

If the code point value of the SRS resource set indication field in DCI is '11', the first SRS resource set can be associated with the second PUSCH transmission opportunity, and the second SRS resource set can be associated with the first PUSCH transmission opportunity.

8. PUSCH transmission scheme for multiple transmission parameters

In this embodiment of the present application, the PUSCH transmission scheme for multiple transmission parameters may include at least one of the following:

The PUSCH space division transmission scheme for multiple transmission parameters; of course, the PUSCH space division transmission scheme for multiple transmission parameters can also be described in other terms, and there are no specific restrictions on this;

The PUSCH space division repeated transmission scheme for multiple transmission parameters; of course, the PUSCH space division repeated transmission scheme for multiple transmission parameters can also be described in other terms, and there are no specific restrictions on this;

PUSCH frequency division (Frequency Division Multiplexing, FDM) transmission scheme A for multiple transmission parameters; of course, PUSCH frequency division transmission scheme A for multiple transmission parameters can also be described in other terms, and there are no specific restrictions on this;

PUSCH frequency division transmission scheme B for multiple transmission parameters; of course, PUSCH frequency division transmission scheme B for multiple transmission parameters can also be described in other terms, without specific restrictions;

PUSCH Time Division Multiplexing (TDM) transmission scheme for multiple transmission parameters; of course, the PUSCH time division transmission scheme for multiple transmission parameters can also be described in other terms, and there are no specific restrictions on this;

PUSCH single frequency network transmission scheme for multiple transmission parameters; of course, the PUSCH single frequency network transmission scheme for multiple transmission parameters can also be described in other terms, without specific restrictions;

etc.

It should be noted that the transmission scheme(s) used in this application can be configured/indicated by the network through high-layer parameters (high-layer signaling, etc.) and/or DCI.

Each type of transmission scheme is explained below.

1) PUSCH space division transmission scheme for multiple transmission parameters

In this embodiment of the present application, the PUSCH spatial division transmission scheme for multiple transmission parameters may include the following features:

One PUSCH is associated with multiple transmission parameters (or one PUSCH is associated with different transmission parameters); and/or,

Frequency domain resources corresponding to each transmission parameter (different transmission parameters) among the plurality of transmission parameters overlap with each other, and time domain resources corresponding to each transmission parameter among the plurality of transmission parameters also overlap with each other.

It should be noted that the "overlap" appearing in this application may be partial overlap (partial overlap), complete overlap, etc., and this will not be specifically limited or repeated.

2) PUSCH space division repeated transmission scheme for multiple transmission parameters

In this embodiment of the present application, the PUSCH space division repetition transmission scheme for multiple transmission parameters may include the following features:

Multiple PUSCH transmission opportunities are associated with multiple transmission parameters or one PUSCH is associated with multiple transmission parameters; and/or,

The frequency domain resources corresponding to each transmission parameter (different transmission parameters) among the multiple transmission parameters overlap with each other, and the time domain resources corresponding to each transmission parameter among the multiple transmission parameters also overlap with each other; and/ or,

Different transmission parameters correspond to the same or different redundancy versions (Redundancy Version, RV) of the same transmission block (TB).

3) PUSCH frequency division transmission scheme for multiple transmission parameters

The PUSCH frequency division transmission scheme oriented to multiple transmission parameters may include the PUSCH frequency division transmission scheme A oriented to multiple transmission parameters and/or the PUSCH frequency division transmission scheme B oriented to multiple transmission parameters.

PUSCH frequency division transmission scheme A for multiple transmission parameters can be understood as that different transmission parameters correspond to different frequency domain resources of the same RV of the same transmission block (TB).

The PUSCH frequency division transmission scheme B for multiple transmission parameters can be understood as that different transmission parameters correspond to the same or different RVs of the same transmission block (TB).

In this embodiment of the present application, the PUSCH frequency division transmission scheme for multiple transmission parameters may include the following features:

The PUSCH transmission opportunities corresponding to each of the multiple transmission parameters are non-overlapping in frequency domain resources, and the PUSCH transmission opportunities corresponding to each transmission parameter are overlapping in time domain resources. For example, two PUSCH transmissions There are non-overlapping frequency domain resources and overlapping time domain resources between opportunities; and/or,

Multiple PUSCH transmission opportunities are associated with multiple transmission parameters, or one PUSCH is associated with different transmission parameters; and/or,

Frequency domain resources corresponding to each transmission parameter (different transmission parameters) among the plurality of transmission parameters are non-overlapping with each other, and time domain resources corresponding to each transmission parameter among the plurality of transmission parameters are overlapped with each other.

4) PUSCH time division transmission scheme for multiple transmission parameters

In this embodiment of the present application, the PUSCH time-division transmission scheme for multiple transmission parameters may include the following features:

The PUSCH transmission opportunities corresponding to each of the multiple transmission parameters are non-overlapping in time domain resources; for example, there are non-overlapping time domain resources between two PUSCH transmission opportunities.

In addition, the PUSCH time division transmission scheme for multiple transmission parameters can also include the following features:

Configure 2 SRS resource sets with usage of 'codebook'; or, configure 2 SRS resource sets with usage of 'non-codebook'; and/or,

For DCI scheduled (activated) PUSCH, the DCI includes the SRS resource set indicator field, and the code point value of the SRS resource set indicator field is '10' or '11'; and/or,

The number of transmission layers corresponding to multiple transmission layer numbers is the same; such as the number of transmission layers indicated by at least one of the SRS resource indicator field, Precoding information and number of layers field, and the Second SRS resource indicator field, Second Precoding information The number of transmission layers indicated by at least one of the and number of layers field and the Second Precoding information field is the same; and/or,

Each transmission parameter among multiple transmission parameters shares the same DMRS port;

5) PUSCH single frequency network transmission solution for multiple transmission parameters

In the embodiment of this application, the PUSCH single frequency network transmission scheme for multiple transmission parameters may include the following features:

Multiple PUSCH transmission opportunities are associated with multiple transmission parameters, or one PUSCH is associated with multiple transmission parameters; and/or,

The corresponding number of transmission layers for each transmission parameter (different transmission parameters) among multiple transmission parameters is the same; and/or,

The DMRS ports corresponding to each of the multiple transmission parameters (different transmission parameters) are the same.

9. Antenna ports field in DCI

The Antenna ports field in DCI can indicate the antenna port used for data transmission. In this embodiment of the present application, the Antenna ports field may indicate one or more DMRS ports.

It should be noted that the value of the Antenna ports field can be regarded as an index, and this index is used to search for the DMRS port in the antenna port indication table. The antenna port indication table can be specified by network configuration, preconfiguration or standard protocol, etc., so that The Antenna ports field indicates one or more DMRS ports through the antenna port indication table.

In some possible implementations, the DMRS ports indicated by the Antenna ports field have a certain index ordering.

For example, the DMRS port indicated by the Antenna ports field is {0,1,2,3}. Among them, the index order of DMRS port is 0, 1, 2 and 3.

In some possible implementations, the DMRS ports indicated by the Antenna ports field can belong to multiple DMRS code division multiplexing groups (CDM groups), the same DMRS CDM group, or different DMRS CDMs. group, there are no specific restrictions on this.

For example, the DMRS port indicated by the Antenna ports field is {0,1,2,3}. Among them, DMRS port 0 and DMRS port 1 belong to DMRS CDM group 0, DMRS port 2 and DMRS port32 belong to DMRS CDM group 1.

It should be noted that the DMRS CDM group or groups to which the DMRS port indicated by the Antenna ports field belongs can be configured through network configuration, pre-configuration or standard protocol provisions. For example, the standard protocol will define a table corresponding to DMRS port and DMRS CDM group. By looking up the table, you can know which DMRS port belongs to which DMRS CDM group or groups.

In addition, the number of DMRS CDM groups can be determined by the DMRS type (type). For example, DMRS tpye1 can have 2 DMRS CDM groups; DMRS tpye2 can have 3 DMRS CDM groups.

10. For PUSCH transmission oriented to multiple transmission parameters, how to determine the DMRS port for each of the multiple transmission parameters?

Below, this application will describe how to determine the DMRS port for each transmission parameter among multiple transmission parameters using different transmission schemes.

1) For PUSCH space division transmission scheme oriented to multiple transmission parameters

It should be noted that for the PUSCH space division transmission scheme oriented to multiple transmission parameters, there may be the following multiple methods. Each of the multiple ways is not necessarily independent of each other, and can also be combined/combined with each other to obtain a new way. This new way also falls within the scope of protection claimed by this application, and will not be detailed. Limitation and redundancy.

Way 1:

In "Mode 1", the present application introduces multiple fields, so that each of the multiple fields can be used to indicate the DMRS port of one transmission parameter among multiple transmission parameters.

That is to say, as many fields as there are transmission parameters are introduced, and one field indicates the DMRS port of a transmission parameter, so as to determine the DMRS port of each transmission parameter in multiple transmission parameters based on multiple fields in the DCI. .

In some possible implementations, the multiple fields may be in the DCI. That is, multiple fields are introduced in DCI.

For example, taking two transmission parameters as an example, this application can indicate the DMRS port of a transmission parameter based on the Antenna ports field in DCI, and then introduce a new field in DCI (such as the Second Antenna ports field) ) to indicate the DMRS port of another transmission parameter, thereby determining the DMRS port of the two transmission parameters based on the two fields in the DCI.

It should be noted that the DCI can be used to schedule or activate PUSCH. The PUSCH can be associated with multiple transmission parameters, and the DMRS port of each transmission parameter in the multiple transmission parameters is determined based on multiple fields in the DCI. This enables the possibility of PUSCH transmission for multiple transmission parameters from the DMRS port perspective.

In some possible implementations, a first field of the plurality of fields may be associated with a first transmission parameter, and a second field of the plurality of fields may be associated with a second transmission parameter. In other words, the first field may be used to indicate the DMRS port of the first transmission parameter, and the second field may be used to indicate the DMRS port of the second transmission parameter.

It should be noted that the first field may be any field among multiple transmission parameters, and the second field may be another field that is distinguished from the first field.

The first transmission parameter may be any transmission parameter among multiple transmission parameters, and the first transmission parameter is not necessarily the first transmission parameter.

The second transmission parameter may be another transmission parameter that is distinguished from the first transmission parameter, and the second transmission parameter is not necessarily the second transmission parameter.

For example, take the first field as the Antenna ports field in DCI, the second field as the new field in DCI, the first transmission parameter as the first SRS resource set, and the second transmission parameter as the second SRS resource set as an example. , the Antenna ports field can be associated with the first SRS resource set, and new fields (such as the Second Antenna ports field) can be associated with the second SRS resource set. In some possible implementations, the multiple fields may be in the network configuration information. The network configuration information can be carried by higher layer signaling or higher layer parameters.

Optionally, this network configuration information can be used to configure PUSCH of authorization type 1.

To sum up, this application can determine the DMRS port of each of the multiple transmission parameters based on multiple fields in the DCI. Each of the multiple fields can be used to indicate the transmission of one of the multiple transmission parameters. Parameter DMRS port.

Way 2:

In "Method 2", this embodiment of the present application considers the DMRS port indicated by the Antenna ports field in the DCI, and determines each of the multiple transmission parameters according to the DMRS CDM group to which the DMRS port indicated by the Antenna ports field belongs. DMRS ports, so that the DMRS ports of each transmission parameter in multiple transmission parameters can belong to different DMRS CDM groups. That is to say, each of the multiple transmission parameters can be associated with the DMRS port indicated by the Antenna ports field.

Since the DMRS ports of each transmission parameter among the multiple transmission parameters can belong to different DMRS CDM groups, interference between the DMRS ports of each transmission parameter can be avoided to improve PUSCH performance.

It should be noted that the DMRS ports of each transmission parameter among the multiple transmission parameters belong to different DMRS CDM groups, and the following situations may exist. Each of the multiple situations is not necessarily independent of each other, but can also be combined/combined with each other to obtain a new situation. This new situation also falls within the scope of protection claimed by this application, and will not be specified. Limitation and redundancy.

Scenario 1:

In some possible implementations, the DMRS port of the first transmission parameter among multiple transmission parameters belongs to the DMRS CDM group to which the first DMRS port among the DMRS ports indicated by the Antenna ports field belongs; other transmission parameters among the multiple transmission parameters The DMRS port of the parameter belongs to other DMRS CDM groups except the DMRS CDM group where the first DMRS port is located.

For example, if the DMRS port indicated by the Antenna ports field is {0,1,2,3}; where,

The first DMRS port and the second DMRS port in the DMRS ports indicated by the Antenna ports field can be DMRS port 0 and DMRS port 1, and DMRS port 0 and DMRS port 1 belong to DMRS CDM group 0;

The third DMRS port and the fourth DMRS port in the DMRS ports indicated by the Antenna ports field can be DMRS port 2 and DMRS port 3 respectively, and DMRS port 2 and DMRS port 3 belong to DMRS CDM group 1;

Multiple transmission parameters include two transmission parameters (such as two SRS resource sets), that is, the first transmission parameter (such as the first SRS resource set) and the second transmission parameter (such as the second SRS resource set), then

The first transmission parameter is associated with DMRS port 0 and DMRS port 1, and the DMRS port of the first transmission parameter can belong to DMRS CDM group 0; among them, the number of transmission layers corresponding to the first transmission parameter is 2 (such as the number of transmission layers Can be determined or indicated by at least one of the SRS resource indicator field, Precoding information and number of layers field);

The second transmission parameter is associated with DMRS port 2 and DMRS port 3, and the DMRS port of the second transmission parameter can belong to DMRS CDM group 1; among them, the transmission parameter corresponding to the number of transmission layers corresponding to the second transmission parameter is 2 (such as The number of transport layers can be determined or indicated by at least one of the Second SRS resource indicator field, Second Precoding information and number of layers field, and Second Precoding information field).

Optionally, the number of DMRS ports of the first transmission parameter among the multiple transmission parameters and the number of transmission layers corresponding to the first transmission parameter may be the same;

The number of DMRS ports for other transmission parameters among the multiple transmission parameters and the number of transmission layers corresponding to the other transmission parameters may be the same.

Scenario 2:

In some possible implementations, the DMRS port of the first transmission parameter among multiple transmission parameters belongs to the DMRS CDM group to which the last DMRS port among the DMRS ports indicated by the Antenna ports field belongs;

The DMRS ports of other transmission parameters in multiple transmission parameters belong to other DMRS CDM groups except the DMRS CDM group where the last DMRS port is located.

Scenario 3:

In some possible implementations, the DMRS port of the first transmission parameter among multiple transmission parameters belongs to the DMRS CDM group to which any one of the DMRS ports indicated by the Antenna ports field belongs;

The DMRS ports of other transmission parameters in multiple transmission parameters belong to other DMRS CDM groups except the DMRS CDM group in which any DMRS port is located.

Way 3:

In "Method 3", this embodiment of the present application considers the DMRS port indicated by the Antenna ports field in the DCI, and determines the DMRS port for each transmission parameter among the multiple transmission parameters based on the DMRS port indicated by the Antenna ports field. That is to say, each of the multiple transmission parameters can be associated with the DMRS port indicated by the Antenna ports field.

It should be noted that, unlike the DMRS ports of each of the multiple transmission parameters in the above "Method 2", which belong to different DMRS CDM groups, each of the multiple transmission parameters in "Method 3" The DMRS ports of the parameters can belong to the same DMRS CDM group or different DMRS CDM groups. Since they belong to the same DMRS CDM group, there may be some interference between the DMRS ports of each transmission parameter.

In addition, the DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the DMRS port indicated by the Antenna ports field. There may be various situations as follows. Each of the multiple situations is not necessarily independent of each other, but can also be combined/combined with each other to obtain a new situation. This new situation also falls within the scope of protection claimed by this application, and will not be specified. Limitation and redundancy.

Scenario A:

In some possible implementations, the DMRS port of each transmission parameter among the multiple transmission parameters may be determined in ascending order according to the index of the DMRS port indicated by the Antenna ports field.

It can be understood that in "scenario A", the present application can sort the DMRS ports indicated by the Antenna ports field in ascending order according to the index, and then determine the DMRS port of each transmission parameter based on the DMRS ports after the index is ascending and sorted. In this way, it is possible to support any combination of transmission layers corresponding to multiple transmission parameters.

For example, if the DMRS port indicated by the Antenna ports field is {0,2,1}, then the DMRS port after sorting in ascending order by index is {0,1,2}. At this time, if the multiple transmission parameters include two transmission parameters, and the number of transmission layers corresponding to the first transmission parameter is 1 (for example, the number of transmission layers can be determined by at least one of the SRS resource indicator field, Precoding information and number of layers field). one of the items to determine or indicate), the number of transmission layers corresponding to the second transmission parameter is 2 (for example, the number of transmission layers can be determined by the Second SRS resource indicator field, Second Precoding information and number of layers field, Second Precoding information field to missing one confirmation or instruction), then

The first transmission parameter corresponds to DMRS port 0, that is, the DMRS port of the first transmission parameter is DMRS port 0;

The second transmission parameter corresponds to DMRS port 1 and DMRS port 2, that is, the DMRS ports of the second transmission parameter are DMRS port 1 and DMRS port 2.

Scenario B:

In some possible implementations, the DMRS port of each transmission parameter in the plurality of transmission parameters may be determined according to the decreasing index order of the DMRS port indicated by the Antenna ports field.

It can be understood that in "scenario B", this application can sort the DMRS ports indicated by the Antenna ports field in descending order according to the index, and then determine the DMRS port of each transmission parameter based on the DMRS ports after the index is descending sorted. In this way, any combination of the number of transmission layers corresponding to multiple transmission parameters can be supported.

For example, if the DMRS port indicated by the Antenna ports field is {0,2,1}, then the DMRS port after sorting in descending order by index is {2,1,0}. At this time, if multiple transmission parameters include two transmission parameters, and the number of transmission layers corresponding to the first transmission parameter is 1 (for example, the number of transmission layers can be determined by at least one of the SRS resource indicator field, Precoding information and number of layers field one of the items to determine or indicate), the number of transmission layers corresponding to the second transmission parameter is 2 (for example, the number of transmission layers can be determined by at least one of Second SRS resource indicator field, Second Precoding information and number of layers field, and Second Precoding information field. a determination or instruction), then

The first transmission parameter corresponds to DMRS port 2, that is, the DMRS port of the first transmission parameter is DMRS port 2;

The second transmission parameter corresponds to DMRS port 0 and DMRS port 1, that is, the DMRS ports of the second transmission parameter are DMRS port 0 and DMRS port 1.

Scenario C:

In some possible implementations, the DMRS ports of each transmission parameter among the multiple transmission parameters may be determined sequentially or alternately according to the original order of the DMRS ports indicated by the Antenna ports field.

It can be understood that in "Scenario C", this application may not sort the DMRS ports indicated by the Antenna ports field in any way, but directly determine the DMRS ports of each transmission parameter according to the original index sorting.

For example, if the DMRS port indicated by the Antenna ports field is {0,2,1}, and the multiple transmission parameters include two transmission parameters, and the number of transmission layers corresponding to the first transmission parameter is 2 (such as Can be determined or indicated by at least one of the SRS resource indicator field, Precoding information and number of layers field), the number of transmission layers corresponding to the second transmission parameter is 1 (for example, the number of transmission layers can be determined by the Second SRS resource indicator field , Second Precoding information and number of layers field, Second Precoding information field at least one confirmation or indication), then

The first transmission parameter corresponds to DMRS port 0 and DMRS port 2, that is, the DMRS port of the first transmission parameter is DMRS port 0 and DMRS port 2;

The second transmission parameter corresponds to DMRS port 1, that is, the DMRS port of the second transmission parameter is DMRS port 1.

Way 4:

In "Method 4", the embodiment of the present application introduces some restrictions to choose whether to adopt the above-mentioned "Method 2" or the above-mentioned "Method 3". Specifically, the following situations may exist. Each of the multiple situations is not necessarily independent of each other and can be combined/combined with each other to obtain a new situation. This new situation also falls within the scope of protection claimed by this application and is not specifically limited. and redundancy.

Scenario a:

In some possible implementations, if the number of transmission layers corresponding to at least one transmission parameter among multiple transmission parameters is 3 (for example, the number of transmission layers can be determined by SRS resource indicator field, Precoding information and number of layers field, Second SRS resource indicator field , Second Precoding information and number of layers field, Second Precoding information field at least one determination or indication), then the above "Method 3" can be used.

It can be understood that if the number of transmission layers corresponding to at least one transmission parameter among the multiple transmission parameters is 3, the application can determine the DMRS port of each transmission parameter among the multiple transmission parameters based on the DMRS port indicated by the Antenna ports field. , such as "Situation A", "Situation B" or "Situation C" above.

It can be seen that the above "Method 3" can flexibly support the situation where the number of transmission layers is 3.

In some possible implementations, if the number of transmission layers corresponding to each transmission parameter among the multiple transmission parameters is not 3 (for example, the number of transmission layers can be determined by SRS resource indicator field, Precoding information and number of layers field, Second SRS resource indicator field , Second Precoding information and number of layers field, Second Precoding information field at least one determination or indication), the above "Method 2" can be used.

It can be understood that if the number of transmission layers corresponding to each of the multiple transmission parameters is not 3, this application can determine each of the multiple transmission parameters based on the DMRS CDM group to which the DMRS port indicated by the Antenna ports field belongs. Transmitting parameters DMRS port, such as "Case 1", "Case 2" or "Case 3"above;

It can be seen that the above "Method 2" can flexibly support the situation where the number of transmission layers is not 3.

Scenario b:

In some possible implementations, if the DMRS ports indicated by the Antenna ports field belong to the same DMRS CDM group, the above "Method 3" can be used.

It can be understood that if the DMRS port indicated by the Antenna ports field belongs to the same DMRS CDM group, then this application can determine the DMRS port of each transmission parameter among the multiple transmission parameters based on the DMRS port indicated by the Antenna ports field, such as "Situation A", "Situation B" or "Situation C" above. It can be seen that the DMRS ports of each transmission parameter in the above "Method 3" may belong to the same DMRS CDM group, resulting in possible interference between DMRS ports.

In some possible implementations, if the DMRS ports indicated by the Antenna ports field belong to different DMRS CDM groups, the above "Method 2" can be used.

It can be understood that if the DMRS ports indicated by the Antenna ports field belong to different DMRS CDM groups, this application can determine each of the multiple transmission parameters based on the DMRS CDM group to which the DMRS ports indicated by the Antenna ports field belongs. DMRS port, such as "Case 1", "Case 2" or "Case 3" above.

2) For PUSCH frequency division transmission scheme oriented to multiple transmission parameters

It should be noted that for the PUSCH frequency division transmission scheme oriented to multiple transmission parameters, the DMRS ports for different transmission parameters must be different. However, for the PUSCH frequency division transmission scheme oriented to multiple transmission parameters, the DMRS ports for different transmission parameters must be different. The ports can be the same or different.

Based on this, for the PUSCH frequency division transmission scheme oriented to multiple transmission parameters, in addition to the above-mentioned "mode 1", "mode 2", "mode 3" and "mode 4", the following multiple methods can also be used. Each of the multiple ways is not necessarily independent of each other, and can also be combined/combined with each other to obtain a new way. This new way also falls within the scope of protection claimed by this application, and will not be detailed. Limitation and redundancy.

Way 5:

In "Method 5", the embodiment of the present application considers the DMRS port indicated by the Antenna ports field in the DCI, and determines the DMRS port of each transmission parameter among the multiple transmission parameters based on the DMRS port indicated by the Antenna ports field, so that The DMRS port of each transmission parameter in multiple transmission parameters can share the DMRS port indicated by the Antenna ports field. That is to say, each transmission parameter can be associated with the same DMRS port indicated by the Antenna ports field. This can help reduce some overhead.

It can be understood that the DMRS ports associated with each transmission parameter may be the same. In other words, the number of transmission layers corresponding to each transmission parameter is the same.

For example, if the DMRS port indicated by the Antenna ports field is {0}, and the multiple transmission parameters include two transmission parameters, and the number of transmission layers corresponding to the first transmission parameter is 1, and the number of transmission layers corresponding to the second transmission parameter The number is 1, then

The first transmission parameter can be associated with DMRS port 0, that is, the DMRS port of the first transmission parameter is DMRS port 0;

The second transmission parameter can be associated with DMRS port 0, that is, the DMRS port of the second transmission parameter is DMRS port 0.

Way 6:

In "Method 6", the embodiment of this application considers the DMRS port indicated by the Antenna ports field in the DCI and the number of transmission layers corresponding to each of the multiple transmission parameters, and based on the DMRS port indicated by the Antenna ports field and The DMRS port of each transmission parameter is determined by the number of transmission layers corresponding to each transmission parameter.

The DMRS ports for multiple transmission parameters are determined based on the DMRS port indicated by the Antenna ports field and the number of transmission layers corresponding to each transmission parameter. The following situations may exist. Each of the multiple situations is not necessarily independent of each other, but can also be combined/combined with each other to obtain a new situation. This new situation also falls within the scope of protection claimed by this application, and will not be specified. Limitation and redundancy.

Situation ①:

In some possible implementations, if the multiple transmission parameters include a first transmission parameter and a second transmission parameter, and the number of transmission layers corresponding to the first transmission parameter is greater than the number of transmission layers corresponding to the second transmission parameter, then

The first transmission parameter can be associated with the DMRS port indicated by the Antenna ports field; and/or,

The DMRS port of the second transmission parameter at least includes the DMRS port associated with the phase tracking reference signal (PTRS) of the second transmission parameter, and the DMRS port associated with the PTRS is among the DMRS ports indicated by the Antenna ports field. .

It can be understood that, among the two transmission parameters, the first transmission parameter with a larger number of transmission layers may be associated with the DMRS port indicated by the Antenna ports field, and the second transmission parameter with a smaller number of transmission layers may be associated with The DMRS port associated with the PTRS associated with itself, and the DMRS port associated with the PTRS is also among the DMRS ports indicated by the Antenna ports field.

That is to say, the DMRS port corresponding to the first transmission parameter with a larger number of transmission layers is the DMRS port indicated by the Antenna ports field, without further selection. However, for the DMRS port corresponding to the transmission parameter with a smaller number of transmission layers, it is necessary to select from the DMRS ports indicated by the Antenna ports field. Among them, when selecting, this application considers the DMRS port associated with the PTRS, which is beneficial to enhancing PUSCH performance.

It should be noted that the first transmission parameter may be any transmission parameter among multiple transmission parameters, and the first transmission parameter is not necessarily the first transmission parameter.

In addition, the PTRS of the transmission parameter can be understood as the PTRS associated with the transmission parameter. The association between the transmission parameters and the PTRS can be configured (determined/indicated) through high-layer signaling and/or DCI. For this purpose, the second transmission parameter may be associated with a PTRS.

There may be an association relationship between PTRS and DMRS, and the association relationship may be configured (determined/indicated) through high-layer signaling and/or downlink control information (such as the PTRS and DMRS association fields in DCI).

Situation ②:

In some possible implementations, if the number of transmission layers corresponding to each of the multiple transmission parameters is equal, then

The DMRS ports of each of the multiple transmission parameters share the same DMRS port indicated by the Antenna ports field.

It can be understood that the DMRS ports associated with each transmission parameter may be the same. This can help reduce overhead.

3) For PUSCH time division transmission scheme oriented to multiple transmission parameters

It should be noted that this application can further enhance PUSCH transmission based on the above-mentioned "4) PUSCH time-division transmission scheme for multiple transmission parameters" and use the above-mentioned "PUSCH time-division transmission scheme for multiple transmission parameters". Mode 1", "mode 2", "mode 3", "mode 4", "mode 5" or "mode 6", etc. are used to implement PUSCH transmission enhancement, which will not be described again.

11. An example of a DMRS port determination method

In combination with the above content, an example of a DMRS port determination method according to the embodiment of the present application is introduced. It should be noted that the execution subject of this method may be a network device or a terminal device, and the network device may be a chip, a chip module, or a communication module, etc., and the terminal device may be a chip, a chip module, or a communication module, etc. That is to say, this method can be applied to network equipment or terminal equipment, and there is no specific restriction on this.

As shown in Figure 2, it is a schematic flow chart of a DMRS port method according to the embodiment of the present application, which specifically includes the following steps:

S210. Determine the DMRS port of each of the multiple transmission parameters. The multiple transmission parameters include at least one of multiple TCI states, multiple SRS resources, multiple SRS resource sets, and multiple TRPs. The multiple Transmission parameters are used for PUSCH.

It should be noted that "multiple transmission parameters", "how to determine the DMRS port of each transmission parameter among the multiple transmission parameters", "TCI status", "SRS resource", "SRS resource set" and "TRP", etc., You can refer to the above content for details and will not go into details.

In some possible implementations, the DMRS port that determines each of the multiple transmission parameters in S210 may include:

The DMRS port of each of the multiple transmission parameters is determined according to multiple fields in the DCI, and each of the multiple fields is used to indicate the DMRS port of one of the multiple transmission parameters.

Optionally, the DCI can be used to schedule or activate PUSCH.

It should be noted that, combined with the content in "Method 1" mentioned above, this application can introduce multiple fields in DCI and indicate a DMRS port of transmission parameters through one field, thereby determining multiple fields based on multiple fields in DCI. DMRS port for each transmission parameter in the transmission parameters.

The DMRS port of each transmission parameter among the plurality of transmission parameters is determined according to the plurality of fields in the network configuration information, and each of the plurality of fields is used to indicate the DMRS port of one transmission parameter among the plurality of transmission parameters.

It should be noted that, combined with the content in the above "Method 1", this application can introduce multiple fields into the network configuration information, and use one field to indicate a DMRS port for transmission parameters, thereby realizing multiple fields in the network configuration information. The field determines the DMRS port for each of the plurality of transmission parameters.

The DMRS port of each transmission parameter among the plurality of transmission parameters is determined according to the DMRS port indicated by the antenna port field in the DCI.

It should be noted that, combined with the content in "Method 3" above, this application can determine the DMRS port of each of the multiple transmission parameters according to the DMRS port indicated by the antenna port field, so that each of the multiple transmission parameters The transmission parameters can be associated with the DMRS port indicated by the antenna port field, thereby realizing the possibility of PUSCH transmission for multiple transmission parameters through the DMRS port indicated by the antenna port field.

In some possible implementations, the DMRS port of each transmission parameter among the plurality of transmission parameters may be determined according to an increasing index order or a decreasing index order of the DMRS ports indicated by the antenna port field.

It should be noted that, combined with the content in the above "Scenario A" and "Scenario B", this application can sort the DMRS ports indicated by the antenna port field in ascending or descending order according to the index, and then sort them in ascending or descending order according to the index. The subsequent DMRS port is used to determine the DMRS port of each transmission parameter, so that each transmission parameter among the multiple transmission parameters can be associated with the DMRS port indicated by the antenna port field, thereby realizing multiple transmissions through the DMRS port indicated by the antenna port field. Possibility of PUSCH transmission of parameters.

In some possible implementations, the DMRS ports of each transmission parameter among the multiple transmission parameters may be determined sequentially or alternately according to the original order of the DMRS ports indicated by the antenna port field.

It should be noted that, combined with the content in "Scenario C" above, this application may not sort the DMRS ports indicated by the antenna port field in any way, but directly determine the DMRS ports of each transmission parameter according to the original index sorting, so that Each transmission parameter can be associated with the DMRS port indicated by the antenna port field, thereby realizing the possibility of PUSCH transmission for multiple transmission parameters through the DMRS port indicated by the antenna port field.

In some possible implementations, if the number of transmission layers corresponding to at least one transmission parameter among the multiple transmission parameters is 3, then

The DMRS port of each transmission parameter among the multiple transmission parameters may be determined according to the index increasing order or the index decreasing order of the DMRS ports indicated by the antenna port field; or,

The DMRS port of each transmission parameter among the multiple transmission parameters may be determined sequentially or alternately according to the original index order of the DMRS port indicated by the antenna port field.

It should be noted that, combined with the content in "Scenario A" above, this application can introduce some restrictions to choose to adopt "Method 3" above. If the restriction condition is "the number of transmission layers corresponding to at least one transmission parameter among multiple transmission parameters is 3", then the above-mentioned "Method 3" is used. It can be seen that the above "Method 3" can flexibly support the situation where the number of transmission layers is 3.

In some possible implementations, determining the DMRS port for each of the multiple transmission parameters based on the DMRS port indicated by the antenna port field in the DCI may include:

The DMRS port for each transmission parameter among the plurality of transmission parameters is determined according to the DMRS code division multiple access group to which the DMRS port indicated by the antenna port field in the DCI belongs.

It should be noted that, combined with the content in "Method 2" above, this application can determine the DMRS port of each transmission parameter according to the DMRS code division multiple access group to which the DMRS port indicated by the antenna port field belongs, so that each transmission parameter can be associated DMRS ports in the DMRS code division multiple access group, thereby realizing the possibility of PUSCH transmission for multiple transmission parameters through the DMRS ports in the DMRS code division multiple access group.

In some possible implementations, the DMRS ports of each of the multiple transmission parameters belong to different DMRS code division multiple access groups.

It should be noted that, combined with the content in "Method 2" above, since the DMRS ports of each transmission parameter can belong to different DMRS code division multiple access groups, interference between the DMRS ports of each transmission parameter can be well avoided. In order to improve PUSCH transmission.

In some possible implementations, the DMRS port of the first transmission parameter among the multiple transmission parameters belongs to the DMRS code division multiple access group to which the first DMRS port of the DMRS ports indicated by the antenna port field belongs;

The DMRS ports of other transmission parameters among the multiple transmission parameters belong to other DMRS code division multiple access groups except the DMRS code division multiple access group where the first DMRS port is located.

It should be noted that, combined with the content in "Scenario 1" above, this application can consider the order of each transmission parameter among the multiple transmission parameters and the order of the DMRS ports indicated by the antenna port field, so that the first transmission parameter is associated with the first transmission parameter. A DMRS port belongs to a DMRS code division multiple access group, and other transmission parameters are associated with other DMRS code division multiple access groups, so that the DMRS ports for each transmission parameter can belong to different DMRS code division multiple access groups.

In some possible implementations, the DMRS port indicated by the antenna port field may belong to multiple DMRS code division multiple access groups or to the same DMRS code division multiple access group.

It should be noted that, combined with the content in the above "9. Antenna ports field in DCI", which DMRS port or DMRS code division multiple access groups the DMRS port indicated by the antenna port field belongs to can be configured through the network. , pre-configured or standard protocol provisions, etc.

In some possible implementations, if the DMRS ports indicated by the antenna port field belong to the same DMRS code division multiple access group, then

The DMRS port of each transmission parameter among the multiple transmission parameters is determined according to the index increasing order or the index decreasing order of the DMRS port indicated by the antenna port field; or,

The DMRS port of each transmission parameter among the plurality of transmission parameters is determined sequentially or alternately according to the original index order of the DMRS port indicated by the antenna port field.

It should be noted that, combined with the content in the above "Scenario b", the application can introduce some restrictions to choose to adopt the above "Method 3". If the restriction condition is "the DMRS ports indicated by the antenna port field belong to the same DMRS code division multiple access group", then the above "Method 3" is used. It can be seen that the DMRS ports of each transmission parameter in the above "Method 3" may belong to the same DMRS CDM group, resulting in possible interference between DMRS ports.

In some possible implementations, if the DMRS ports indicated by the antenna port field belong to different DMRS code division multiple access groups, then

The DMRS ports of each of the multiple transmission parameters belong to different DMRS code division multiple access groups.

It should be noted that, combined with the content in "Scenario b" above, this application can introduce some restrictions to choose to adopt "Method 2" above. If the restriction condition is "the DMRS ports indicated by the antenna port field belong to different DMRS code division multiple access groups", then the above "Method 2" is used. It can be seen that the DMRS ports of each transmission parameter in the above "Mode 2" can belong to different DMRS code division multiple access groups, so that interference between the DMRS ports of each transmission parameter can be well avoided, so as to improve PUSCH performance.

In some possible implementations, the DMRS ports of each of the multiple transmission parameters share the same DMRS port indicated by the antenna port field.

It should be noted that, combined with the content in "Method 5" above, this application can determine the DMRS port of each transmission parameter according to the DMRS port indicated by the antenna port field, so that the DMRS ports of each transmission parameter can share the same DMRS port.

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the DMRS port indicated by the antenna port field in the DCI and the number of transmission layers corresponding to each transmission parameter in the plurality of transmission parameters.

It should be noted that, combined with the content in "Method 6" above, this application can determine the DMRS ports of multiple transmission parameters through the DMRS port indicated by the antenna port field and the number of transmission layers corresponding to each transmission parameter, so as to determine the DMRS port for multiple transmission parameters through the antenna port field. The indicated number of DMRS ports and transmission layers enables the possibility of PUSCH transmission for multiple transmission parameters.

The first transmission parameter is associated with the DMRS port indicated by the antenna port field; and/or,

The second transmission parameter includes at least a DMRS port associated with the phase tracking reference signal PTRS of the second transmission parameter, and the DMRS port associated with the PTRS is among the DMRS ports indicated by the antenna port field.

It should be noted that, combined with the content in "Scenario ①" above, among the two transmission parameters, the first transmission parameter with a larger number of transmission layers can be associated with the DMRS port indicated by the antenna port field, while the first transmission parameter with a smaller number of transmission layers can be associated with the DMRS port indicated by the antenna port field. The second transmission parameter of the layer number may be associated with the DMRS port associated with the PTRS associated with itself, and the DMRS port associated with the PTRS is also among the DMRS ports indicated by the antenna port field.

The DMRS ports of each of the multiple transmission parameters share the same DMRS port indicated by the antenna port field.

It should be noted that, combined with the content in "Scenario ②" above, this application introduces certain restrictions to determine the DMRS port for each transmission parameter. If the restriction condition is "the number of transmission layers corresponding to each transmission parameter is equal", then the above-mentioned "Method 5" can be used.

3. An example of a demodulation reference signal port determination device

The above mainly introduces the solutions of the embodiments of the present application from the perspective of the method side. It can be understood that, in order to implement the above functions, the terminal device or network device includes corresponding hardware structures and/or software modules for performing each function. Those skilled in the art should easily realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functionality for each specific application, but such implementations should not be considered to be beyond the scope of this application.

Embodiments of the present application can divide the terminal device or network device into functional units according to the above method examples. For example, each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one processing unit. The above integrated units can be implemented in the form of hardware or software program modules. It should be noted that the division of units in the embodiment of the present application is schematic and is only a logical function division, and there may be other division methods in actual implementation.

In the case of using an integrated unit, FIG. 3 is a functional unit block diagram of a demodulation reference signal port determination device according to an embodiment of the present application. The demodulation reference signal port determining device 300 includes: a determining unit 301.

In some possible implementations, the determining unit 301 may be a module unit used to process signals, data, information, etc., There are no specific restrictions on this.

In some possible implementations, the demodulation reference signal port determination device 300 may further include a storage unit for storing computer program codes or instructions executed by the demodulation reference signal port determination device 300 . The storage unit may be a memory.

In some possible implementations, the demodulation reference signal port determining device 300 may be a chip or a chip module.

In some possible implementations, the determination unit 301 may be integrated in other units.

For example, the determination unit 301 may be integrated in the communication unit.

As another example, the determining unit 301 may be integrated in the processing unit.

It should be noted that the communication unit may be a communication interface, a transceiver, a transceiver circuit, etc.

The processing unit may be a processor or a controller, such as a baseband processor, a baseband chip, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), or an application-specific integrated circuit. (application-specific integrated circuit, ASIC), field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with this disclosure. The processing unit may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

In some possible implementations, the determining unit 301 is configured to perform any step performed by the terminal device/chip/chip module, etc. in the above method embodiment, such as sending or receiving data, etc. Detailed explanation below.

In specific implementation, the determination unit 301 is configured to perform any step in the above method embodiments, and when performing actions such as sending, may optionally call other units to complete corresponding operations. Detailed explanation below.

Determining unit 301, configured to determine the DMRS port of each transmission parameter among a plurality of transmission parameters, the plurality of transmission parameters including at least one of a plurality of TCI states, a plurality of SRS resources, a plurality of SRS resource sets, and a plurality of TRPs. , the multiple transmission parameters are used for PUSCH.

It should be noted that the specific implementation of each operation in the embodiment shown in Figure 3 can be found in the description of the method embodiment shown above, and will not be described in detail here.

Optionally, the DCI can be used to schedule or activate PUSCH.

It should be noted that, combined with the content in the above "Scenario A" and "Scenario B", this application can sort the DMRS ports indicated by the antenna port field in ascending or descending order according to the index, and then sort them in ascending or descending order according to the index. DMRS port after To determine the DMRS port of each transmission parameter, so that each transmission parameter among the multiple transmission parameters can be associated with the DMRS port indicated by the antenna port field, thereby realizing PUSCH transmission for multiple transmission parameters through the DMRS port indicated by the antenna port field. possibility.

It should be noted that, combined with the content in the above "Mode 6", this application can determine the DMRS ports of multiple transmission parameters through the DMRS port indicated by the antenna port field and the number of transmission layers corresponding to each transmission parameter, so as to determine the DMRS port for multiple transmission parameters through the antenna port field. The indicated number of DMRS ports and transmission layers enables the possibility of PUSCH transmission for multiple transmission parameters.

4. An example of a terminal device

Please refer to Figure 4, which is a schematic structural diagram of a terminal device according to an embodiment of the present application. Among them, the terminal device 400 includes a processor 410, a memory 420, and a communication bus used to connect the processor 410 and the memory 420.

In some possible implementations, memory 420 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (erasable programmable read) -only memory (EPROM) or portable read-only memory (compact disc read-only memory, CD-ROM). The memory 420 is used to store the program code executed by the terminal device 400 and the data transmitted.

In some possible implementations, the terminal device 400 also includes a communication interface for receiving and sending data.

In some possible implementations, the processor 410 may be one or more central processing units (CPUs). In the case where the processor 410 is a central processing unit (CPU), the central processing unit (CPU) may be a single core. Central processing unit (CPU), which can also be a multi-core central processing unit (CPU).

In some possible implementations, the processor 410 may be a baseband chip, a chip, a central processing unit (CPU), a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. .

During specific implementation, the processor 410 in the terminal device 400 is used to execute the computer program or instructions 421 stored in the memory 420 to perform the following operations:

Determine a DMRS port for each of a plurality of transmission parameters, the plurality of transmission parameters including at least one of a plurality of TCI states, a plurality of SRS resources, a plurality of SRS resource sets, and a plurality of TRPs, the plurality of transmission parameters Used for PUSCH.

It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above, and the terminal device 400 can It is used to execute the above method embodiments of the present application, which will not be described again.

5. An example of a network device

Please refer to Figure 5. Figure 5 is a schematic structural diagram of a network device provided by an embodiment of the present application. Among them, the network device 500 includes a processor 510, a memory 520, and a communication bus used to connect the processor 510 and the memory 520.

In some possible implementations, the memory 520 includes but is not limited to RAM, ROM, EPROM or CD-ROM, and the memory 520 is used to store related instructions and data.

In some possible implementations, network device 500 also includes a communication interface for receiving and sending data.

In some possible implementations, the processor 510 may be one or more central processing units (CPUs). In the case where the processor 510 is a central processing unit (CPU), the central processing unit (CPU) may be a single core. Central processing unit (CPU), which can also be a multi-core central processing unit (CPU).

In some possible implementations, the processor 510 can be a baseband chip, a chip, a central processing unit (CPU), a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. .

In some possible implementations, the processor 510 in the network device 500 is used to execute the computer program or instructions 521 stored in the memory 520 to perform the following operations:

It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above, and the network device 500 can be used to execute the above method embodiment of the present application, which will not be described again.

6. Other related examples

In some possible implementations, the above method embodiments may be applied to or in terminal devices. That is to say, the execution subject of the above method embodiment can be a terminal device, a chip, a chip module or a module, etc., and there is no specific limitation on this.

In some possible implementations, the above method embodiments may be applied to or in network equipment. That is to say, the execution subject of the above method embodiment can be a network device, a chip, a chip module or a module, etc., and there is no specific limitation on this.

An embodiment of the present application also provides a chip, including a processor, a memory, and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiments.

An embodiment of the present application also provides a chip, including a processor and a communication interface, where the processor performs the steps described in the above method embodiment.

Embodiments of the present application also provide a chip module, including a transceiver component and a chip. The chip includes a processor, a memory, and a computer program or instructions stored on the memory. The processor executes the computer program or instructions to Implement the steps described in the above method embodiment.

Embodiments of the present application also provide a computer-readable storage medium that stores computer programs or instructions. When the computer program or instructions are executed, the steps described in the above method embodiments are implemented.

Embodiments of the present application also provide a computer program product, which includes a computer program or instructions. When the computer program or instructions are executed, the steps described in the above method embodiments are implemented.

An embodiment of the present application also provides a communication system, including the above-mentioned terminal device and network device.

It should be noted that for the sake of simplicity, the above-mentioned embodiments are expressed as a series of action combinations. Those skilled in the art should know that the present application is not limited by the sequence of actions described, because certain steps in the embodiments of the present application can be performed in other orders or at the same time. In addition, those skilled in the art should also know that the embodiments described in the specification are preferred embodiments, and the actions, steps, modules or units involved are not necessarily necessary for the embodiments of the present application.

In the above-mentioned embodiments, the embodiments of the present application have different emphases in the description of each embodiment. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

The steps of the method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by a processor executing software instructions. Software instructions can be composed of corresponding software modules. Software modules can be stored in RAM, flash memory, ROM, EPROM, electrically erasable programmable read-only memory (EPROM, EEPROM), registers, hard disks, removable hard disks, and read-only disks ( CD-ROM) or any other form of storage media well known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and storage media may be located in an ASIC. Additionally, the ASIC can be located on the end device or management device middle. Of course, the processor and the storage medium may also exist as discrete components in the terminal device or management device.

Those skilled in the art should realize that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented in whole or in part through software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be sent from a website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means Transmission to another website, computer, server or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., digital video discs (DVD)), or semiconductor media (e.g., solid state disks (SSD)) wait.

Each module/unit included in each device and product described in the above embodiments may be a software module/unit or a hardware module/unit, or may be partly a software module/unit and partly a hardware module/unit. For example, for various devices and products applied to or integrated into a chip, each module/unit included therein can be implemented in the form of hardware such as circuits, or at least some of the modules/units can be implemented in the form of a software program. The software program Running on the processor integrated inside the chip, the remaining (if any) modules/units can be implemented using circuits and other hardware methods; for various devices and products applied to or integrated into the chip module, each module/unit included in it can They are all implemented in the form of hardware such as circuits. Different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components. Alternatively, at least some modules/units can be implemented in the form of software programs. The software program runs on the processor integrated inside the chip module, and the remaining (if any) modules/units can be implemented using circuits and other hardware methods; for each device and product that is applied or integrated into the terminal equipment, the various modules/units it contains Modules/units can all be implemented in the form of hardware such as circuits. Different modules/units can be located in the same component (for example, chip, circuit module, etc.) or in different components within the terminal device, or at least some of the modules/units can use software programs. This software program runs on the processor integrated inside the terminal device, and the remaining (if any) modules/units can be implemented using circuits and other hardware methods.

The above-mentioned specific implementation modes further describe the purpose, technical solutions and beneficial effects of the embodiments of the present application in detail. It should be understood that the above-mentioned are only specific implementation modes of the embodiments of the present application and are not used for The protection scope of the embodiments of this application is limited. Any modifications, equivalent substitutions, improvements, etc. made based on the technical solutions of the embodiments of this application shall be included in the protection scope of the embodiments of this application.

Claims

A method for determining a demodulation reference signal port, which is characterized by including:

Determining a demodulation reference signal DMRS port for each of a plurality of transmission parameters, the plurality of transmission parameters including a plurality of transmission configuration indication TCI states, a plurality of sounding reference signal SRS resources, a plurality of SRS resource sets, a plurality of transmission Receive at least one item in the point TRP, and the plurality of transmission parameters are used for the physical uplink shared channel PUSCH.
The method according to claim 1, characterized in that determining the DMRS port of each transmission parameter among the plurality of transmission parameters includes:

Determine a DMRS port for each of the plurality of transmission parameters according to multiple fields in the downlink control information DCI, where each of the multiple fields is used to indicate one of the multiple transmission parameters. DMRS port.
The method according to claim 1, characterized in that determining the DMRS port of each transmission parameter among the plurality of transmission parameters includes:

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the DMRS port indicated by the antenna port field in the DCI.
The method according to claim 3, characterized in that the DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the index increasing order or the index decreasing order of the DMRS port indicated by the antenna port field. .
The method according to claim 3, characterized in that the DMRS ports of each transmission parameter in the plurality of transmission parameters are determined sequentially or alternately according to the original order of the DMRS ports indicated by the antenna port field.
The method according to claim 3, characterized in that if the number of transmission layers corresponding to at least one transmission parameter among the plurality of transmission parameters is 3, then

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the index increasing sorting or the index decreasing sorting of the DMRS ports indicated by the antenna port field; or,

The DMRS port of each transmission parameter among the plurality of transmission parameters is determined sequentially or alternately according to the original index order of the DMRS port indicated by the antenna port field.
The method according to claim 3, wherein determining the DMRS port of each transmission parameter in the plurality of transmission parameters according to the DMRS port indicated by the antenna port field in the DCI includes:

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the DMRS code division multiple access group to which the DMRS port indicated by the antenna port field in the DCI belongs.
The method according to claim 7, characterized in that the DMRS ports of each transmission parameter among the plurality of transmission parameters belong to different DMRS code division multiple access groups.
The method according to claim 7, characterized in that the DMRS port of the first transmission parameter among the plurality of transmission parameters belongs to the DMRS code to which the first DMRS port of the DMRS ports indicated by the antenna port field belongs. divided into multiple address groups;

The DMRS ports of other transmission parameters among the plurality of transmission parameters belong to other DMRS code division multiple access groups except the DMRS code division multiple access group in which the first DMRS port is located.
The method according to claim 7, characterized in that the DMRS port indicated by the antenna port field belongs to multiple DMRS code division multiple access groups or belongs to the same DMRS code division multiple access group.
The method according to claim 10, characterized in that if the DMRS ports indicated by the antenna port field belong to the same DMRS code division multiple access group, then

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the index increasing sorting or the index decreasing sorting of the DMRS ports indicated by the antenna port field; or,

The DMRS port of each transmission parameter among the plurality of transmission parameters is determined sequentially or alternately according to the original index order of the DMRS port indicated by the antenna port field.
The method according to claim 10, characterized in that if the DMRS ports indicated by the antenna port field belong to different DMRS code division multiple access groups, then

The DMRS ports of each of the multiple transmission parameters belong to different DMRS code division multiple access groups.
The method according to claim 3, characterized in that the DMRS ports of each transmission parameter in the plurality of transmission parameters share the same DMRS port indicated by the antenna port field.
The method according to claim 1, characterized in that determining the DMRS port of each transmission parameter among the plurality of transmission parameters includes:

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the DMRS port indicated by the antenna port field in the DCI and the number of transmission layers corresponding to each of the plurality of transmission parameters.
The method according to claim 14, characterized in that if the plurality of transmission parameters include a first transmission parameter and a second transmission parameter parameter, and the number of transmission layers corresponding to the first transmission parameter is greater than the number of transmission layers corresponding to the second transmission parameter, then

The first transmission parameter is associated with the DMRS port indicated by the antenna port field; and/or,

The second transmission parameter at least includes the DMRS port associated with the phase tracking reference signal PTRS of the second transmission parameter, and the DMRS port associated with the PTRS is among the DMRS ports indicated by the antenna port field.
The method according to claim 14, characterized in that if the number of transmission layers corresponding to each transmission parameter in the plurality of transmission parameters is equal, then

The DMRS ports of each of the multiple transmission parameters share the same DMRS port indicated by the antenna port field.
A demodulation reference signal port determination device, characterized in that it includes:

Determining unit, configured to determine the demodulation reference signal DMRS port of each transmission parameter in a plurality of transmission parameters, the plurality of transmission parameters including a plurality of transmission configuration indication TCI states, a plurality of sounding reference signal SRS resources, a plurality of SRS resources At least one of a set and multiple transmission and reception points TRP, the multiple transmission parameters are used for the physical uplink shared channel PUSCH.
The device according to claim 17, characterized in that, in determining the DMRS port of each transmission parameter among the plurality of transmission parameters, the determining unit is configured to:

Determine a DMRS port for each of the plurality of transmission parameters according to multiple fields in the downlink control information DCI, where each of the multiple fields is used to indicate one of the multiple transmission parameters. DMRS port.
The device according to claim 17, characterized in that, in determining the DMRS port of each transmission parameter among the plurality of transmission parameters, the determining unit is configured to:

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the DMRS port indicated by the antenna port field in the DCI.
The device according to claim 19, characterized in that the DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to an increasing index sorting or a decreasing index sorting of the DMRS ports indicated by the antenna port field. .
The apparatus according to claim 19, wherein the DMRS ports of each transmission parameter among the plurality of transmission parameters are determined sequentially or alternately according to the original order of the DMRS ports indicated by the antenna port field.
The device according to claim 19, characterized in that if the number of transmission layers corresponding to at least one transmission parameter among the plurality of transmission parameters is 3, then

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the index increasing sorting or the index decreasing sorting of the DMRS ports indicated by the antenna port field; or,

The DMRS port of each transmission parameter among the plurality of transmission parameters is determined sequentially or alternately according to the original index order of the DMRS port indicated by the antenna port field.
The device according to claim 19, wherein determining the DMRS port of each transmission parameter in the plurality of transmission parameters according to the DMRS port indicated by the antenna port field in the DCI includes:

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the DMRS code division multiple access group to which the DMRS port indicated by the antenna port field in the DCI belongs.
The device according to claim 23, wherein the DMRS ports of each transmission parameter among the plurality of transmission parameters belong to different DMRS code division multiple access groups.
The device according to claim 23, wherein the DMRS port of the first transmission parameter among the plurality of transmission parameters belongs to the DMRS code to which the first DMRS port among the DMRS ports indicated by the antenna port field belongs. divided into multiple address groups;

The DMRS ports of other transmission parameters among the plurality of transmission parameters belong to other DMRS code division multiple access groups except the DMRS code division multiple access group in which the first DMRS port is located.
The device according to claim 23, characterized in that the DMRS port indicated by the antenna port field belongs to multiple DMRS code division multiple access groups or belongs to the same DMRS code division multiple access group.
The device according to claim 26, characterized in that if the DMRS ports indicated by the antenna port field belong to the same DMRS code division multiple access group, then

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the index increasing sorting or the index decreasing sorting of the DMRS ports indicated by the antenna port field; or,

The DMRS port of each transmission parameter among the plurality of transmission parameters is determined sequentially or alternately according to the original index order of the DMRS port indicated by the antenna port field.
The device according to claim 26, characterized in that if the DMRS ports indicated by the antenna port field belong to different DMRS code division multiple access groups, then

The DMRS ports of each of the multiple transmission parameters belong to different DMRS code division multiple access groups.
The apparatus according to claim 19, wherein the DMRS port of each transmission parameter in the plurality of transmission parameters shares the same DMRS port indicated by the antenna port field.
The device according to claim 17, characterized in that, in determining the DMRS port of each transmission parameter among the plurality of transmission parameters, the determining unit is configured to:

The DMRS port of each transmission parameter in the plurality of transmission parameters is determined according to the DMRS port indicated by the antenna port field in the DCI and the number of transmission layers corresponding to each of the plurality of transmission parameters.
The device according to claim 30, characterized in that if the plurality of transmission parameters include a first transmission parameter and a second transmission parameter, and the number of transmission layers corresponding to the first transmission parameter is greater than the second transmission parameter The corresponding number of transmission layers, then

The first transmission parameter is associated with the DMRS port indicated by the antenna port field; and/or,

The second transmission parameter at least includes the DMRS port associated with the phase tracking reference signal PTRS of the second transmission parameter, and the DMRS port associated with the PTRS is among the DMRS ports indicated by the antenna port field.
The device according to claim 30, characterized in that if the number of transmission layers corresponding to each transmission parameter in the plurality of transmission parameters is equal, then

The DMRS ports of each of the multiple transmission parameters share the same DMRS port indicated by the antenna port field.
A terminal device includes a processor, a memory and a computer program or instructions stored on the memory, characterized in that the processor executes the computer program or instructions to implement any one of claims 1-16. Describe the steps of the method.
A network device, including a processor, a memory and a computer program or instructions stored on the memory, characterized in that the processor executes the computer program or instructions to implement any one of claims 1-16. Describe the steps of the method.
A chip includes a processor and a communication interface, characterized in that the processor executes the steps of the method described in any one of claims 1-16.
A computer-readable storage medium, characterized in that it stores a computer program or instructions, and when the computer program or instructions are executed, the steps of the method described in any one of claims 1-16 are implemented.