CN117478282A

CN117478282A - Demodulation reference signal port determining method and device, terminal equipment and network equipment

Info

Publication number: CN117478282A
Application number: CN202210833791.0A
Authority: CN
Inventors: 王化磊
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2024-01-30
Also published as: WO2024012561A1

Abstract

The application discloses a demodulation reference signal port determining method and device, terminal equipment and network equipment, and relates to the technical field of communication; the method comprises the following steps: a DMRS port for each of a 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, a plurality of TRPs is determined, the plurality of transmission parameters for PUSCH. Since a PUSCH transmission scheme for multiple transmission parameters may be supported, i.e., multiple transmission parameters may be used for PUSCH, and the multiple transmission parameters include at least one of multiple TCI states, multiple SRS resources, multiple SRS resource sets, and multiple TRPs, the present application needs to determine the DMRS port of each transmission parameter in the multiple transmission parameters, so as to implement the possibility of PUSCH transmission for multiple transmission parameters from the perspective of the DMRS port.

Description

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

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for determining a demodulation reference signal port, a terminal device, and a network device.

Background

Currently, the standard protocol specified by the third generation partnership project organization (3rd Generation Partnership Project,3GPP) involves physical uplink shared channel (physical uplink shared channel, PUSCH) transmissions.

However, with the continuous evolution of standard protocols established by 3GPP or the change of communication scenarios, some new PUSCH transmission schemes may be introduced. At this time, further research on demodulation reference signal (demodulation reference signal, DMRS) ports (ports) in the new PUSCH transmission scheme is required.

Disclosure of Invention

The application provides a demodulation reference signal port determining method and device, terminal equipment and network equipment, which aim to solve the problem of determining a DMRS port of each transmission parameter in a plurality of transmission parameters so as to realize the possibility of PUSCH transmission facing the plurality of transmission parameters from the perspective of the DMRS port.

In a first aspect, a method for determining a demodulation reference signal port according to the present application includes:

a demodulation reference signal, DMRS, port is determined for each of a plurality of transmission parameters including at least one of a plurality of transmission configuration indication, TCI, a plurality of sounding reference signal, SRS, resources, a plurality of SRS resources sets, a plurality of transmission reception points, TRPs, for a physical uplink shared channel, PUSCH.

As can be seen, for PUSCH, since a PUSCH transmission scheme oriented to multiple transmission parameters may be supported, i.e., multiple transmission parameters may be used for PUSCH, and the multiple transmission parameters include at least one of multiple TCI states, multiple SRS resources, multiple SRS resource sets, and multiple TRPs, the present application needs to determine the DMRS port of each transmission parameter in the multiple transmission parameters, so as to implement the possibility of PUSCH transmission oriented to multiple transmission parameters from the perspective of the DMRS port.

In a second aspect, a demodulation reference signal port determining apparatus according to the present application includes:

a determining unit, configured to determine a demodulation reference signal DMRS port of each of a plurality of transmission parameters, where the plurality of transmission parameters include at least one of a plurality of transmission configuration indicators TCI status, a plurality of sounding reference signal SRS resources, a plurality of SRS resource sets, and a plurality of transmission receiving points TRP, and the plurality of transmission parameters are used for a physical uplink shared channel PUSCH.

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

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

In a fifth aspect, a terminal device according to the present application includes a processor, a memory, and a computer program or instructions stored on the memory, where the processor executes the computer program or instructions to implement the steps in the method designed in the first aspect.

In a sixth aspect, a network device according to the present application includes a processor, a memory, and a computer program or instructions stored on the memory, where the processor executes the computer program or instructions to implement the steps in the method designed in the first aspect.

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

In an eighth aspect, a chip module according to the present application includes a transceiver component and a chip, where the chip includes a processor, and 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, in which a computer program or instructions are stored which, when executed, implement the steps in the method devised in the first aspect described above.

A tenth aspect is a computer program product according to the present application, comprising a computer program or instructions which, when executed, implement the steps in the method devised in the first aspect above.

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 technical effects of the second to eleventh aspects may be seen by the technical effects of the first aspect, and are not described here again.

Drawings

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

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

fig. 2 is a flowchart of a demodulation reference signal port determining method according to an embodiment of the present application;

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

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

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

Detailed Description

It should be understood that the terms "first," "second," and the like, as used in embodiments of the present application, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, software, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases 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 of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the embodiment of the application, "and/or", the association relation of the association objects is described, which means that three relations can exist. For example, a and/or B may represent three cases: a alone; both A and B are present; b alone. Wherein A, B can be singular or plural.

In the embodiment of the present application, the symbol "/" may indicate that the associated object is an or relationship. In addition, the symbol "/" may also denote a divisor, i.e. performing a division operation. For example, A/B may represent A divided by B.

"at least one" or similar expressions in the embodiments of the present application refer to any combination of these items, including any combination of single item(s) or plural items(s); refers to one or more, and a plurality refers to two or more. For example, at least one (one) of a, b or c may represent the following seven cases: a, b, c, a and b, a and c, b and c, a, b and c. Wherein each of a, b, c may be an element or a set comprising one or more elements.

The 'equal' in the embodiment of the application can be used together with the 'greater than', and is applicable to the technical scheme adopted when the 'greater than'; the 'equal' can be used together with the 'less than', and is suitable for the technical scheme adopted when the 'less than'. When "equal to" is used in conjunction with "greater than," it is not used in conjunction with "less than"; when "equal" is used in conjunction with "less than," it is not used in conjunction with "greater than.

In the embodiments of the present application, the "associated with" may be used in combination with "of", corresponding to "and" indicated to ", mapping, and the like, or may represent the same concept/meaning.

In the embodiment of the present application, "connection" refers to various connection modes such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in any way.

The "network" in the embodiments of the present application may be sometimes used in combination with "system" or the like, or represent the same concept/meaning, and the communication system is a communication network.

The "size" in the embodiments of the present application may be sometimes used in combination with the "length" or the like, or represent the same concept/meaning.

The "number" in the embodiments of the present application may be sometimes used in combination with "number", etc., or represent the same concept/meaning.

The term "comprising" in the embodiments of the present application may sometimes be used interchangeably with "comprising," "carrying," etc., or to mean the same concept/meaning.

The "configuration" in the embodiments of the present application may be sometimes used in combination with "indication" or the like, or represent the same concept/meaning.

"facing" in the embodiments of the present application may be sometimes used with "for", "associated with", "based on", "belonging to", etc. or denote the same concept/meaning.

The following describes related content, concepts, meanings, technical problems, technical solutions, advantageous effects and the like related to the embodiments of the present application.

1. Communication system, terminal device and network device

1. Communication system

The technical solution of the embodiment of the application can be applied to various communication systems, for example: general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced Long Term Evolution, LTE-a) system, new Radio (NR) system, evolution system of NR system, LTE-based Access to Unlicensed Spectrum on unlicensed spectrum (LTE-U) system, NR-based Access to Unlicensed Spectrum on unlicensed spectrum (NR-U) system, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wi-Fi), 6th Generation (6 th-Generation, 6G) communication system, or other communication system, etc.

It should be noted that, the number of connections supported by the conventional communication system is limited and easy to implement. However, with the development of communication technology, the communication system may support not only a conventional communication system, but also, for example, a device-to-device (D2D) communication, a machine-to-machine (machine to machine, M2M) communication, a machine type communication (machine type communication, MTC), an inter-vehicle (vehicle to vehicle, V2V) communication, an internet of vehicles (vehicle to everything, V2X) communication, a narrowband internet of things (narrow band internet of things, NB-IoT) communication, and so on, so the technical solution of the embodiment of the present application may also be applied to the above-described communication system.

In addition, the technical solution of the embodiment of the present application may be applied to beamforming (beamforming), carrier aggregation (carrier aggregation, CA), dual connectivity (dual connectivity, DC), or independent (SA) deployment scenarios, and the like.

In this 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 an authorized spectrum or an unlicensed spectrum, which is not limited. In addition, unlicensed spectrum may be understood as shared spectrum, and licensed spectrum may be understood as unshared spectrum.

Since the embodiments of the present application describe various embodiments in connection with terminal devices and network devices, the terminal devices and network devices involved will be specifically described below.

2. Terminal equipment

The terminal device may be a device having a receiving and/or transmitting function, and may also be referred to as a terminal, a User Equipment (UE), a remote terminal device (remote UE), a relay device (relay UE), an access terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, a mobile device, a user terminal device, an intelligent terminal device, a wireless communication device, a user agent, or a user equipment. The relay device is a terminal device capable of providing a relay service to other terminal devices (including a remote terminal device).

For example, the terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned automatic driving, a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), or the like.

As another example, the terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next generation communication system (e.g., NR communication system, 6G communication system) or a terminal device in a future evolved public land mobile network (public land mobile network, PLMN), etc., without limitation.

In some possible implementations, the terminal device may be deployed on land, including indoors or outdoors, hand-held, wearable, or vehicle-mounted; can be deployed on the water surface (such as ships, etc.); may be deployed in the air (e.g., aircraft, balloons, satellites, etc.).

In some possible implementations, the terminal device may include means for wireless communication functions, such as a chip system, a chip module. By way of example, the system-on-chip may include a chip, and may include other discrete devices.

3. Network equipment

The network device may be a device with a receiving and/or transmitting function, and is used for communication with the terminal device.

In some possible implementations, the network device may be responsible for radio resource management (radio resource management, RRM), quality of service (quality of service, qoS) management, data compression and encryption, data transceiving, etc. on the air side.

In some possible implementations, the network device may be a Base Station (BS) in a communication system or a device deployed in a radio access network (radio access network, RAN) for providing wireless communication functions.

For example, the network device may be an evolved node B (evolutional node B, eNB or eNodeB) in the LTE communication system, a next generation evolved node B (next generation evolved node B, ng-eNB) in the NR communication system, a next generation node B (next generation node B, gNB) in the NR communication system, a Master Node (MN) in the dual connectivity architecture, a second node or Secondary Node (SN) in the dual connectivity architecture, or the like, without particular limitation.

In some possible implementations, the network device may also be a device in a Core Network (CN), such as an access and mobility management function (access and mobility management function, AMF), a user plane function (user plane function, UPF), etc.; but also Access Points (APs) in WLAN, relay stations, communication devices in future evolved PLMN networks, communication devices in NTN networks, etc.

In some possible implementations, the network device may include a device, such as a system-on-chip, a chip module, having means to provide wireless communication functionality for the terminal device. The chip system may include a chip, for example, or may include other discrete devices.

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

In some possible implementations, the network device may communicate with an internet protocol (Internet Protocol, IP) network. Such as the internet, a private IP network or other data network, etc.

In some possible implementations, the network device may be a single node to implement the functionality of the base station or the network device may include two or more separate nodes to implement the functionality of the base station. For example, network devices include Centralized Units (CUs) and Distributed Units (DUs), such as gNB-CUs and gNB-DUs. Further, in other embodiments of the present application, the network device may further comprise an active antenna unit (active antenna unit, AAU). Wherein a CU implements a portion of the functions of the network device and a DU implements another portion of the functions of the network device. For example, a CU is responsible for handling non-real-time protocols and services, implementing the functions of a radio resource control (radio resource control, RRC) layer, a service data adaptation (service data adaptation protocol, SDAP) layer, and a packet data convergence (packet data convergence protocol, PDCP) layer. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC), medium access control (medium access control, MAC) and Physical (PHY) layers. In addition, the AAU can realize partial physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, in this network deployment, higher layer signaling (e.g., RRC signaling) may be considered to be transmitted by the DU or transmitted by both the DU and the AAU. It is understood that the network device may include at least one of CU, DU, AAU. In addition, the CU may be divided into network devices in the RAN, or may be divided into network devices in the core network, which is not particularly limited.

In some possible implementations, the network device may be any one of multiple sites that performs coherent cooperative transmission (coherent joint transmission, cqt) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, which is not particularly limited. The multi-station coherent cooperative transmission may be a multi-station joint coherent transmission, or different data belonging to the same physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) are sent from different stations to the terminal device, or the multiple stations are virtualized into one station for transmission, and names with the same meaning specified in other standards are also applicable to the application, i.e. the application does not limit the names of the parameters. The stations in the multi-station coherent cooperative transmission may be remote radio heads (Remote Radio Head, RRH), TRP, etc., which are not particularly limited.

In some possible implementations, the network device may be any one of multiple sites that perform incoherent cooperative transmission with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, which is not limited specifically. The multi-station incoherent cooperative transmission may be a joint incoherent transmission of a plurality of stations, or different data belonging to the same PDSCH may be sent from different stations to the terminal device, and names with the same meaning specified in other standards may be applied to the present application, that is, the present application does not limit the names of these parameters. The stations in the multi-station incoherent cooperative transmission may be RRHs, TRPs, etc., which are not particularly limited.

Note that the TRP of the present application is not limited to the coherent cooperative transmission or the incoherent cooperative transmission, but may be applied to other scenarios, and is not particularly limited thereto.

In some possible implementations, the network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (high elliptical orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.

In some possible implementations, the network device may serve a cell, and terminal devices in the cell may communicate with the network device over transmission resources (e.g., spectrum resources). The cells may be macro cells (macro cells), small cells (small cells), urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells), and the like.

4. Description of the examples

An exemplary description of a communication system according to an embodiment of the present application is provided below.

Exemplary, a network architecture of a communication system according to an embodiment of the present application may refer to fig. 1. As shown in fig. 1, communication system 10 may include a network device 110, a network device 120, and a terminal device 130. Terminal device 130 may communicate with network device 110 and network device 120 wirelessly.

Fig. 1 is merely an illustration of a network architecture of a communication system, and the network architecture of the communication system according to the embodiments of the present application is not limited thereto. For example, in the embodiment of the present application, a server or other device may also be included in the communication system. For another example, in an embodiment of the present application, a communication system may include a plurality of network devices and/or a plurality of terminal devices.

2. Demodulation reference signal (demodulation reference signal, DMRS) port (port) determining method

In the New Radio, NR, release 18, R18 or future protocol version, for PUSCH, physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) transmission may be supported for (for/associated/based/belonging to etc.) multiple transmission parameters, i.e. multiple transmission parameters may be used for PUSCH, or multiple transmission parameters may be used for PUSCH transmission etc.

In an embodiment of the present application, the plurality of transmission parameters may include at least one of a plurality of transmission configuration indicators (transmission configuration indicator, TCI) states (states), a plurality of sounding reference signals (sounding reference signal, SRS) resources, a plurality of SRS resource sets (SRS resource sets), a plurality of transmission receiving points (transmission and reception point, TRPs), and the like. Of course, TCI status, SRS resources, SRS resource set, or the like can also be considered as a concept of TRP.

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

The technical schemes, beneficial effects, concepts and the like according to the embodiments of the present application are described below.

1. Multiple transmission parameters

1) Concept of

In the embodiment of the present application, the multiple transmission parameters may be understood as parameters or information for characterizing PUSCH transmission in a spatial domain, a spatial dimension, a time domain, a frequency domain, or a power domain, and so on.

In particular implementations, the plurality of transmission parameters may include at least one of a plurality of TCI states, a plurality of SRS resources, a plurality of SRS resource sets, a plurality of TRPs, and the like. That is, one transmission parameter may include at least one of one TCI state, one SRS resource set, one TRP, and the like. Alternatively, the transmission parameters may include at least one of TCI status, SRS resources, SRS resource sets, TRPs, and the like.

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

2)TRP

In the embodiment of the present application, TRP may be characterized by TCI status, SRS resources, SRS resource set, or spatial information (spatial information), etc.

That is, TCI status, SRS resources, SRS resource set, spatial information, or the like can also be regarded as a concept of TRP.

Note that TRP in the present application may be associated with spatial information or null directions (e.g., one or a group of beams); alternatively, TRP may be characterized by spatial information or null directions (e.g., one or a set of beams); alternatively, TRP may be characterized by power control parameters. In addition, the TRP in the present application may be a functional module (for example, implemented by using a software function), or may be implemented by hardware, which is not limited by the implementation of the TRP.

3) TCI state

In the embodiment of the application, the network device may configure a plurality of TCI states to the terminal device.

It should be noted that the TCI state may include a quasico-Location (QCL) type D (QCL-type). Wherein QCL-typeD may contain spatial reception parameters, etc. The spatial reception parameters may include at least one of: angle of arrival (AOA), average AOA, AOA spread, transmit departure angle (angle of departure, AOD), average AOD, AOD spread, receive antenna spatial correlation, transmit beam, receive beam, resource identification, and the like.

Note that the TCI state may be a unified TCI state in Release 17 (R17), or may be a unified TCI state in another protocol version, which is not specifically limited herein.

In some possible implementations, the unified TCI state function may include a common TCI state of the downlink and uplink (referred to as a Joint mechanism, although other terms may be used, such as a first mechanism, etc., without specific limitation, and described below in terms of the Joint mechanism), and/or different TCI states of the downlink and uplink (referred to as a Separate mechanism, although other terms may be used, such as a second mechanism, etc., without specific limitation, and described below in terms of the Separate mechanism).

The join mechanism may refer to a TCI state applicable to some or all of the downlink channels/signals and some or all of the uplink channels/signals. The separation mechanism may refer to two TCI states being applicable to part or all of the downstream channels/signals and part or all of the upstream channels/signals, respectively.

4) SRS resources

In the embodiment of the application, the network device may configure a plurality of SRS resources to the terminal device. SRS resources may be used for channel quality estimation to enable frequency selective scheduling, beam management, etc. in the uplink. It is to be appreciated that the plurality of SRS resources can belong to different SRS resource sets.

5) SRS resource set

In the embodiment of the application, the network device may configure one or more SRS resource sets to the terminal device. Each SRS resource set may contain one or more SRS resources. The network device may configure a plurality of SRS resource sets for the terminal device for a plurality of purposes, for example, for uplink and downlink multi-antenna precoding, for uplink and downlink beam management, and so on.

The use (use) of the SRS resource set is configured or indicated as 'codebook' or 'non-codebook'.

For example, the network device may configure two SRS resource sets with a user of 'codebook', or configure two SRS resource sets with a user of 'non-codebook'.

The downlink control information (downlink control information, DCI) may include an SRS resource set indication (SRS resource set indicator) field (field).

When txconfig=non codebook, there are two SRS resource sets configured by the higher layer parameter SRS-resourcestto addmodlist, and the two SRS resource sets are associated with the use as 'non codebook'.

When txconfig=codebook, there are two SRS resource sets configured by the higher layer parameter SRS-ResourceSetToAddModList, and the two SRS resource sets are associated with the use as 'codebook'.

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

TABLE 1

Note that, the number of layers (transmission layer number) for PUSCH transmission can be acquired by Precoding information and number of layers field, second Precoding information and number of layers field, or Second Precoding information field based on PUSCH transmission of the codebook.

The number of layers (transmission layer number) for PUSCH transmission can be acquired through SRS resource indicator field or Second SRS resource indicator field based on PUSCH transmission of non-codebook.

2. DMRS port of transmission parameter

It should be noted that, since the DMRS may be used for PUSCH, or for PUSCH demodulation, or for PUSCH transmission, and the transmission parameter may also be used for PUSCH, or for PUSCH transmission, there may be an association (correspondence) between the transmission parameter and the DMRS port. The association relationship may be predefined by a network configuration, a pre-configuration, or a protocol.

Based on this, the DMRS port of the transmission parameter may be understood as a DMRS port associated with the transmission parameter, or a DMRS port corresponding to the transmission parameter, or the like.

3. A first transmission parameter, a second transmission parameter, etc. of a plurality of transmission parameters

It should be noted that, the present application may configure/indicate, through the network, which transmission parameter among the plurality of transmission parameters is the "first transmission parameter", which transmission parameter is the "second transmission parameter", and so on.

Alternatively, the present application may determine, by a method predefined by the protocol, which transmission parameter of the plurality of transmission parameters is the "first transmission parameter", which transmission parameter is the "second transmission parameter", and so on, which is not particularly limited.

For example, the network may configure an Identification (ID) of itself to each of the plurality of transmission parameters. Therefore, the transmission parameter with the smallest ID value may be referred to as a "first transmission parameter", the transmission parameter with the second smallest ID value may be referred to as a "second transmission parameter", and so on; or, the transmission parameter with the largest ID value may be referred to as a "first transmission parameter", the transmission parameter with the second largest ID value may be referred to as a "second transmission parameter", and so on; this is not particularly limited.

For another example, taking the example that the plurality of transmission parameters includes a plurality of SRS resource sets, the first transmission parameter is a first SRS resource set, the second transmission parameter is a second SRS resource set, and the rest is similar to known; the ID corresponding to the first SRS resource set is the smallest, the ID corresponding to the second SRS resource set is the second smallest, and the rest of the IDs are similar, which will not be described in detail.

For another example, taking the example that the plurality of transmission parameters includes a plurality of SRS resources, the first transmission parameter is an SRS resource associated with SRS resource indicator field, the second transmission parameter is an SRS resource associated with Second SRS resource indicator field, and the rest of the transmission parameters are similar, which will not be described in detail.

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

It should be noted that, the network may configure (indicate) the number of transmission layers corresponding to each transmission parameter through a higher layer parameter (higher layer signaling)/DCI, where the number of transmission layers is used for PUSCH transmission, and the number of transmission layers may be configured (indicated) through another higher layer parameter (higher layer signaling).

For example, taking the example that the plurality of parameters includes two SRS resource sets, the network indicates SRS resource indicator field, precoding information and number of layers field, via SRS resource set indicator field in the DCI, at least one of to associate a first SRS resource set and/or Second SRS resource indicator field, second Precoding information and number of layers field, second Precoding information field at least one of to associate a second SRS resource set.

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

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

In addition, the number of transmission layers corresponding to each transmission parameter in the plurality of transmission parameters may be equal to the number of DMRS ports of each transmission parameter.

For example, taking a plurality of transmission parameters as two SRS resource sets 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, the number of DMRS ports of the first SRS resource set is 2 and the number of DMRS ports of the second SRS resource set is 3.

5. PUSCH (physical uplink shared channel) oriented to multiple transmission parameters

In the embodiment of the present application, the PUSCH for multiple transmission parameters may be one PUSCH for multiple transmission parameters, or may be multiple PUSCHs for multiple transmission parameters. The PUSCH may be a PUSCH of a configuration grant (PUSCH of a scheduled (activated) PUSCH, or a PUSCH of the same Transport Block (TB), and is not particularly limited.

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

For the PUSCH of the configuration grant, it may be understood that the network device may determine the PUSCH of the configuration grant Type1 (configured grant Type, cg Type1) through higher layer information (e.g., higher layer parameter ConfiguredGrantConfig); alternatively, the network device may configure PUSCH of grant Type2 (configured grant Type, cg Type2) through DCI activation/deactivation.

For the scheduled PUSCH, the PUSCH for a plurality of transmission parameters may be understood as a PUSCH for a plurality of transmission parameters based on a single DCI.

For the configuration-granted PUSCH, the PUSCH oriented to the plurality of transmission parameters may be understood as the PUSCH oriented to the plurality of transmission parameters based on the configuration-granted.

6. PUSCH associates multiple transmission parameters

In the embodiment of the present application, PUSCH for multiple transmission parameters may be understood that one PUSCH associates multiple transmission parameters. Or, one PUSCH is associated with different transmission parameters.

For example, taking the example that the plurality of transmission parameters includes 2 TRPs, the network configures 2 TRPs, and one PUSCH associates the 2 TRPs. Thus, the PUSCH may be transmitted for the 2 TRPs. Wherein each TRP is respectively associated with 1 TCI state/SRS resource set and the like.

For another example, taking the example that the plurality of transmission parameters includes 2 TCI states, the network configures 2 TCI states, and configures one PUSCH to associate the 2 TCI states. Thus, the PUSCH may be transmitted for the 2 TCI states.

For another example, taking the example that the plurality of transmission parameters includes 2 SRS resources, the network configures 2 SRS resource sets and configures one PUSCH to associate the 2 SRS resources. Thus, the PUSCH may be transmitted for the 2 SRS resources.

For another example, taking the example that the plurality of transmission parameters includes 2 SRS resource sets, the network configures 2 SRS resource sets, and configures one PUSCH to associate the 2 SRS resource sets. Thus, the PUSCH may be transmitted for the 2 SRS resource sets.

In some possible implementations, the embodiments of the present application may configure the association relationship between one PUSCH and multiple transmission parameters through higher layer signaling.

7. PUSCH transmission for multiple transmission parameters

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

the code point (codepoint) of the SRS resource set indication field in the DCI takes a value of '10' or '11'; and/or the number of the groups of groups,

the number of TCI states (or unified TCI states, etc.) indicated by DCI for uplink is a plurality of; for example, the number of TCI states indicated by DCI is 2; and/or the number of the groups of groups,

For PUSCH of configuration grant type 1, the network configuration information includes 2 SRS resource indications. It should be noted that, taking configuration of 2 SRS resource sets as an example, it can be known from table 1 that if the code point of the SRS resource set indication field in the DCI is '10' or '11', at least one of SRS resource indicator field and Precoding information and number of layers field may be associated with the first SRS resource set; and/or, at least one of Second SRS resource indicator field, second Precoding information and number of layers field, second Precoding information field can be associated with a second SRS resource set;

if the code point value of the SRS resource set indication field in the DCI is '10', the first SRS resource set may be associated with a first PUSCH transmission occasion, and the second SRS resource set may be associated with a second PUSCH transmission occasion;

if the code point of the SRS resource set indication field in the DCI is '11', the first SRS resource set may be associated with a second PUSCH transmission occasion, and the second SRS resource set may be associated with the first PUSCH transmission occasion.

8. PUSCH transmission scheme for multiple transmission parameters

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

A PUSCH space division transmission scheme facing a plurality of transmission parameters; of course, the PUSCH space division transmission scheme for multiple transmission parameters may also be described by other terms, which is not particularly limited;

a PUSCH space division repeated transmission scheme facing a plurality of transmission parameters; of course, the PUSCH space division repeated transmission scheme for multiple transmission parameters may also be described by other terms, which is not particularly limited;

PUSCH frequency division (Frequency Division Multiplexing, FDM) transmission scheme a for multiple transmission parameters; of course, the PUSCH frequency division transmission scheme a for multiple transmission parameters may also be described by other terms, which is not particularly limited;

a PUSCH frequency division transmission scheme B facing a plurality of transmission parameters; of course, the PUSCH frequency division transmission scheme B for multiple transmission parameters may also be described by other terms, which is not particularly limited;

PUSCH time division (Time Division Multiplexing, TDM) transmission scheme for multiple transmission parameters; of course, the PUSCH time division transmission scheme for multiple transmission parameters may also be described by other terms, which is not particularly limited;

a PUSCH single frequency network transmission scheme facing a plurality of transmission parameters; of course, the PUSCH single frequency network transmission scheme for multiple transmission parameters may also be described by other terms, which is not particularly limited;

Etc.

It should be noted that, what kind or kinds of transmission schemes are adopted in the present application, the configuration/indication may be performed by the network through higher layer parameters (higher layer signaling, etc.) and/or DCI.

The following describes various transmission schemes, respectively.

1) PUSCH space division transmission scheme for multiple transmission parameters

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

one PUSCH associates multiple transmission parameters (or one PUSCH associates different transmission parameters); and/or the number of the groups of groups,

the frequency domain resources corresponding to each transmission parameter (different transmission parameters) in the plurality of transmission parameters are overlapped with each other, and the time domain resources corresponding to each transmission parameter in the plurality of transmission parameters are also overlapped with each other.

The "overlapping" in the present application may be a partial overlapping (partial overlapping), a complete overlapping, or the like, which is not particularly limited and described in detail.

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

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

multiple PUSCH transmission opportunities associate multiple transmission parameters or one PUSCH associates multiple transmission parameters; and/or the number of the groups of groups,

The frequency domain resources corresponding to each transmission parameter (different transmission parameters) in the plurality of transmission parameters are overlapped with each other, and the time domain resources corresponding to each transmission parameter in the plurality of transmission parameters are also overlapped with each other; and/or the number of the groups of groups,

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

3) PUSCH frequency division transmission scheme for multiple transmission parameters

The PUSCH frequency division transmission scheme for the plurality of transmission parameters may include PUSCH frequency division transmission scheme a for the plurality of transmission parameters and/or PUSCH frequency division transmission scheme B for the plurality of transmission parameters.

The PUSCH frequency division transmission scheme a for multiple transmission parameters may be understood as different transmission parameters corresponding to different frequency domain resources of the same RV of the same Transport Block (TB).

The PUSCH frequency division transmission scheme B for multiple transmission parameters may be understood as different transmission parameters corresponding to the same or different RVs of the same Transport Block (TB).

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

the PUSCH transmission occasions corresponding to each transmission parameter in the plurality of transmission parameters are non-overlapping with each other on the frequency domain resource, and the PUSCH transmission occasions corresponding to each transmission parameter are overlapping with each other on the time domain resource, e.g., there is a non-overlapping frequency domain resource between two PUSCH transmission occasions, and there is an overlapping time domain resource; and/or the number of the groups of groups,

Multiple PUSCH transmission opportunities associate multiple transmission parameters, or one PUSCH associates different transmission parameters; and/or the number of the groups of groups,

the frequency domain resources corresponding to each transmission parameter (different transmission parameters) in the plurality of transmission parameters are non-overlapping, and the time domain resources corresponding to each transmission parameter in the plurality of transmission parameters are overlapping.

4) PUSCH time division transmission scheme for multiple transmission parameters

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

the PUSCH transmission occasions corresponding to the transmission parameters in the plurality of transmission parameters are mutually non-overlapped on the time domain resource; for example, there are non-overlapping time domain resources between two PUSCH transmission occasions.

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

2 usages are configured as SRS resource sets of 'codebook'; or configuring 2 usages as SRS resource sets of 'non-codebook'; and/or the number of the groups of groups,

for PUSCH scheduled (activated) in DCI, SRS resource set indicator field is included in the DCI, and the code point of SRS resource set indicator field is valued as '10' or '11'; and/or the number of the groups of groups,

The number of transmission layers corresponding to the plurality of transmission layers is the same; the number of transmission layers indicated by at least one of SRS resource indicator field, precoding information and number of layers field is the same as the number of transmission layers indicated by at least one of Second SRS resource indicator field, second Precoding information and number of layers field, second Precoding information field; and/or the number of the groups of groups,

each of the plurality of transmission parameters sharing the same DMRS port;

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

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

a plurality of PUSCH transmission occasions are associated with a plurality of transmission parameters, or one PUSCH is associated with a plurality of transmission parameters; and/or the number of the groups of groups,

the number of transmission layers corresponding to each transmission parameter (different transmission parameter) among the plurality of transmission parameters is the same; and/or the number of the groups of groups,

The DMRS ports corresponding to each of the plurality of transmission parameters (different transmission parameters) are identical.

9. Antenna ports (Antenna ports) field in DCI

The Antenna ports field in DCI may indicate the Antenna ports used for data transmission. In embodiments 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 may be regarded as an index, and the DMRS port is searched in the Antenna port indication table by using the index, where the Antenna port indication table may be configured by a network, preconfigured, or specified by a standard protocol, so that the Antenna port indication table indicates one or more DMRS ports by the Antenna ports field.

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

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

In some possible implementations, the DMRS ports indicated by the Antenna ports field may belong to multiple DMRS code division multiple access groups (code division multiplexing group, CDM groups), may belong to the same DMRS CDM group, may belong to different DMRS CDM groups, and is not particularly limited.

For example, DMRS port indicated by the Antenna ports field is {0,1,2,3}. Wherein, DMRS port0 and DMRS port1 belong to DMRS CDM group 0, and DMRS port2 and DMRS port32 belong to DMRS CDM group 1.

The DMRS CDM group or groups to which the DMRS ports indicated in the Antenna ports field specifically belong may be configured by a network, preconfigured, or specified by a standard protocol. For example, the standard protocol may define a table of DMRS ports corresponding to DMRS CDM groups, and by looking up the table, it may be known which DMRS ports belong to which DMRS CDM group or groups.

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

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

The present application will now describe how to determine DMRS ports for each of a plurality of transmission parameters, respectively, from different transmission schemes.

1) Space division transmission scheme for PUSCH (physical uplink shared channel) oriented to multiple transmission parameters

For the PUSCH space division transmission scheme for multiple transmission parameters, there may be the following various ways. The various modes are not necessarily independent of each other, and may be combined/combined with each other to obtain a new mode, and the new mode also belongs to the scope of protection claimed in the application, which is not specifically limited and described in detail.

Mode 1:

in "mode 1", the present application introduces a plurality of fields such that each of the plurality of fields can be used to indicate a DMRS port of one of a plurality of transmission parameters.

That is, how many transmission parameters are, how many fields are introduced, and the DMRS port of one transmission parameter is indicated by one field, thereby implementing the DMRS port for determining each transmission parameter of the plurality of transmission parameters according to the plurality of fields in the DCI.

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

For example, taking two transmission parameters as an example, the present application may indicate a DMRS port of one transmission parameter according to the Antenna ports field in the DCI, and then indicate a DMRS port of another transmission parameter by introducing a new field (such as a second Antenna port (Second Antenna ports) field) into the DCI, so as to implement determining the DMRS ports of two transmission parameters according to the two fields in the DCI.

It should be noted that, the DCI may be used to schedule or activate PUSCH, the PUSCH may be associated with a plurality of transmission parameters, and the DMRS ports of each transmission parameter in the plurality of transmission parameters are determined according to a plurality of fields in the DCI, so that the possibility of PUSCH transmission for the plurality of transmission parameters is implemented from the perspective of the DMRS ports.

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. Alternatively, the first field may be used to indicate a DMRS port of a first transmission parameter and the second field may be used to indicate a DMRS port of a second transmission parameter.

It should be noted that the first field may be any one of a plurality of transmission parameters, and the second field may be another field that is distinguished from the first field.

The first transmission parameter may be any one of a plurality of 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 distinguishable from the first transmission parameter, and the second transmission parameter is not necessarily the second transmission parameter.

For example, taking the first field as an Antenna port field in DCI, the second field as a new field in DCI, the first transmission parameter is a first SRS resource set, the second transmission parameter is a second SRS resource set, for example, the Antenna port field may be associated with the first SRS resource set, and the new field (e.g., second Antenna ports field) may be associated with the second SRS resource set. In some possible implementations, the plurality of fields may be in network configuration information. The network configuration information may be carried by higher layer signaling or higher layer parameters.

Optionally, the network configuration information may be used to configure PUSCH of grant type 1.

In summary, the present application may determine the DMRS port of each of the plurality of transmission parameters according to the plurality of fields in the DCI, where each of the plurality of fields may be used to indicate the DMRS port of one of the plurality of transmission parameters.

Mode 2:

in "mode 2", 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 of the plurality of transmission parameters according to the DMRS CDM group to which the DMRS port indicated by the Antenna ports field belongs, so that the DMRS port of each transmission parameter of the plurality of transmission parameters may belong to a different DMRS CDM group. That is, each of the plurality of transmission parameters may be associated with a DMRS port indicated by the Antenna ports field.

Because the DMRS ports of each transmission parameter in the plurality of transmission parameters can belong to different DMRS CDM groups, interference between the DMRS ports of each transmission parameter can be well avoided, so as to improve PUSCH performance.

It should be noted that, DMRS ports of each of the plurality of transmission parameters belong to different DMRS CDM groups, and there may be the following various cases. The various situations are not necessarily independent of each other, and may be combined/combined with each other to obtain a new situation, and the new situation also falls within the scope of protection claimed in the present application, which is not specifically limited and described in detail.

Case 1:

in some possible implementations, the DMRS port of the first one of the plurality of transmission parameters belongs to a DMRS CDM group to which the first one of the DMRS ports indicated by the Antenna ports field belongs; the DMRS ports of other transmission parameters in the plurality of transmission parameters belong 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}; wherein,

the first DMRS port and the second DMRS port in the DMRS ports indicated by the Antenna ports field may be DMRS port 0 and DMRS port1, and DMRS port 0 and DMRS port1 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 may be DMRS port 2 and DMRS port 3, respectively, and DMRS port 2 and DMRS port 3 belong to DMRS CDM group1;

the plurality of transmission parameters includes two transmission parameters (e.g., two SRS resource sets), namely a first transmission parameter (e.g., a first SRS resource set) and a second transmission parameter (e.g., a second SRS resource set), then

The first transmission parameter is associated with DMRS port 0, DMRS port1, and the DMRS port of the first transmission parameter may belong to DMRS CDM group 0; wherein the number of transmission layers corresponding to the first transmission parameter is 2 (e.g., the number of transmission layers may be determined or indicated by at least one of SRS resource indicator field and Precoding information and number of layers field);

The second transmission parameter is associated with DMRS port 2, DMRS port 3, and the DMRS port of the second transmission parameter may belong to DMRS CDM group 1; wherein the number of transmission layers corresponding to the second transmission parameter corresponds to 2 (e.g., the number of transmission layers may be determined or indicated by at least one of Second SRS resource indicator field, second Precoding information and number of layers field, second Precoding information field).

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

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

Case 2:

in some possible implementations, the DMRS port of the first one of the plurality of transmission parameters belongs to a DMRS CDM group to which the last one of the DMRS ports indicated by the Antenna ports field belongs;

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

Case 3:

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

DMRS ports of other transmission parameters among the plurality of transmission parameters belong to other DMRS CDM groups except for the DMRS CDM group where any one of the DMRS ports is located.

Mode 3:

in "mode 3", 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 of the plurality of transmission parameters according to the DMRS port indicated by the Antenna ports field. That is, each of the plurality of transmission parameters may be associated with a DMRS port indicated by the Antenna ports field.

It should be noted that, unlike the DMRS ports of the plurality of transmission parameters in the above "mode 2" belonging to different DMRS CDM groups, the DMRS ports of the plurality of transmission parameters in the "mode 3" may belong to the same DMRS CDM group or may belong to different DMRS CDM groups. Since the DMRS CDM groups belong to the same DMRS CDM group, there may be some interference between DMRS ports of each transmission parameter.

In addition, the DMRS port of each of the plurality of transmission parameters is determined according to the DMRS port indicated by the Antenna ports field, and there may be various cases as follows. The various situations are not necessarily independent of each other, and may be combined/combined with each other to obtain a new situation, and the new situation also falls within the scope of protection claimed in the present application, which is not specifically limited and described in detail.

Case a:

in some possible implementations, the DMRS ports of each of the plurality of transmission parameters may be determined according to an ascending order of indexes of the DMRS ports indicated by the Antenna ports field.

It may be appreciated that, in the "case a", the DMRS ports indicated by the Antenna ports field may be sorted in an increment manner according to the index, and then the DMRS ports of each transmission parameter may be determined according to the DMRS ports after the increment sorting of the index. In this way, it can be advantageous to support any combination of the number of transmission layers corresponding to the plurality of transmission parameters.

For example, if the DMRS port indicated by the Antenna ports field is {0,2,1}, the DMRS port ordered in increments of index is {0,1,2}. At this time, if the plurality of transmission parameters includes two transmission parameters, and the number of transmission layers corresponding to the first transmission parameter is 1 (e.g., the number of transmission layers can be determined or indicated by at least one of SRS resource indicator field and Precoding information and number of layers field), and the number of transmission layers corresponding to the second transmission parameter is 2 (e.g., the number of transmission layers can be determined or indicated by at least one of Second SRS resource indicator field, second Precoding information and number of layers field and Second Precoding information field), then

The first transmission parameter corresponds to DMRS port 0, i.e., the DMRS port of the first transmission parameter is DMRS port 0;

the second transmission parameters correspond to DMRS port 1 and DMRS port 2, i.e., DMRS ports of the second transmission parameters are DMRS port 1 and DMRS port 2.

Case B:

in some possible implementations, the DMRS ports of each of the plurality of transmission parameters may be determined according to a descending order of indexes of the DMRS ports indicated by the Antenna ports field.

It may be understood that, in the "case B", the DMRS ports indicated by the Antenna ports field may be sorted in descending order according to the index, and then the DMRS ports of each transmission parameter may be determined according to the DMRS ports after the descending order of the index. In this way, it can be advantageous to support any combination of the number of transmission layers corresponding to the plurality of transmission parameters.

For example, if the DMRS port indicated by the Antenna ports field is {0,2,1}, the DMRS port after descending order of the index is {2,1,0}. At this time, if the plurality of transmission parameters includes two transmission parameters, and the number of transmission layers corresponding to the first transmission parameter is 1 (e.g., the number of transmission layers can be determined or indicated by at least one of SRS resource indicator field and Precoding information and number of layers field), and the number of transmission layers corresponding to the second transmission parameter is 2 (e.g., the number of transmission layers can be determined or indicated by at least one of Second SRS resource indicator field, second Precoding information and number of layers field and Second Precoding information field), then

The first transmission parameter corresponds to DMRS port 2, i.e., the DMRS port of the first transmission parameter is DMRS port 2;

The second transmission parameters correspond to DMRS port 0 and DMRS port 1, i.e., DMRS ports of the second transmission parameters are DMRS port 0 and DMRS port 1.

Case C:

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

It can be appreciated that in "case C", the present application may not order the DMRS ports indicated by the Antenna ports field in any manner, but determine the DMRS ports of each transmission parameter directly according to the original index order.

For example, if the DMRS port indicated by the Antenna ports field is {0,2,1}, and the plurality of transmission parameters includes two transmission parameters, and the first transmission parameter corresponds to a transmission layer number of 2 (e.g., the transmission layer number may be determined or indicated by at least one of SRS resource indicator field, precoding information and number of layers field), and the second transmission parameter corresponds to a transmission layer number of 1 (e.g., the transmission layer number may be determined or indicated by at least one of Second SRS resource indicator field, second Precoding information and number of layers field, second Precoding information field)

The first transmission parameter corresponds to the DMRS port 0 and the DMRS port 2, i.e., the DMRS ports of the first transmission parameter are the DMRS port 0 and the DMRS port 2;

the second transmission parameter corresponds to DMRS port 1, i.e., the DMRS port of the second transmission parameter is DMRS port 1.

Mode 4:

in "mode 4", the present embodiment introduces some restrictions to choose whether to use "mode 2" described above or "mode 3" described above. Specifically, the following may be present. The various situations are not necessarily independent of each other, and may be combined/combined with each other to obtain a new situation, and the new situation also falls within the scope of protection claimed in the present application, which is not specifically limited and described in detail.

Case a:

in some possible implementations, the above "mode 3" may be used if the number of transmission layers corresponding to at least one of the plurality of transmission parameters is 3 (e.g., the number of transmission layers may be determined or indicated by at least one of 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).

It may be understood that, if the number of transmission layers corresponding to at least one of the plurality of transmission parameters is 3, the DMRS ports of each of the plurality of transmission parameters may be determined according to the DMRS ports indicated by the Antenna ports field, e.g. "case a", "case B" or "case C" described above.

It can be seen that the above-mentioned "mode 3" can support the situation that the number of transmission layers is 3 very flexibly.

In some possible implementations, the above "mode 2" may be used if the number of transmission layers corresponding to each of the plurality of transmission parameters is not 3 (e.g., the number of transmission layers may be determined or indicated by at least one of 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).

It can be understood that, if the number of transmission layers corresponding to each of the plurality of transmission parameters is not 3, the present application may determine the DMRS port of each of the plurality of transmission parameters according to the DMRS CDM group to which the DMRS port indicated by the Antenna ports field belongs, e.g. "case 1", "case 2" or "case 3" described above;

It can be seen that the above-mentioned "mode 2" can support the situation that the number of transmission layers is not 3 very flexibly.

Case b:

in some possible implementations, if the DMRS ports indicated by the Antenna ports field belong to the same DMRS CDM group, "mode 3" described above may be used.

It can be appreciated that if the DMRS ports indicated by the Antenna ports field belong to the same DMRS CDM group, the present application may determine the DMRS port of each of the plurality of transmission parameters according to the DMRS port indicated by the Antenna ports field, e.g. "case a", "case B" or "case C" as described above. It can be seen that the DMRS ports of each transmission parameter in the above "mode 3" may belong to the same dmrsdm group, so that interference may exist between the DMRS ports.

In some possible implementations, if the DMRS port indicated by the Antenna ports field belongs to a different DMRS CDM group, "mode 2" described above may be employed.

It can be appreciated that if the DMRS port indicated by the Antenna ports field belongs to different DMRS CDM groups, the present application may determine the DMRS port of each of the plurality of transmission parameters according to the DMRS CDM group to which the DMRS port indicated by the Antenna ports field belongs, e.g. "case 1", "case 2", or "case 3" described above.

2) For PUSCH frequency division transmission scheme facing multiple transmission parameters

It should be noted that, for the PUSCH frequency division transmission scheme for multiple transmission parameters, DMRS ports of different transmission parameters are necessarily different, but for the PUSCH frequency division transmission scheme for multiple transmission parameters, DMRS ports of different transmission parameters may be the same or different.

Based on this, for the PUSCH frequency division transmission scheme for a plurality of transmission parameters, the following various schemes may be adopted in addition to the above-described "scheme 1", "scheme 2", "scheme 3", and "scheme 4". The various modes are not necessarily independent of each other, and may be combined/combined with each other to obtain a new mode, and the new mode also belongs to the scope of protection claimed in the application, which is not specifically limited and described in detail.

Mode 5:

in "mode 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 in the plurality of transmission parameters according to the DMRS port indicated by the Antenna ports field, so that the DMRS port of each transmission parameter in the plurality of transmission parameters may share the DMRS port indicated by the Antenna ports field. That is, each transmission parameter may be associated with the DMRS port indicated by the same Antenna ports field. In this way, some overhead may be advantageously reduced.

It is understood that the DMRS ports associated with the various transmission parameters may be identical. That is, the number of transmission layers corresponding to the respective transmission parameters is the same.

For example, if the DMRS port indicated by the Antenna ports field is {0}, and the plurality of transmission parameters includes 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 is 1, then

The first transmission parameter may be associated with DMRS port 0, i.e., the DMRS port of the first transmission parameter is DMRS port 0;

the second transmission parameter may be associated with DMRS port 0, i.e., the DMRS port of the second transmission parameter is DMRS port 0.

Mode 6:

in "mode 6", the embodiment of the present 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 plurality of transmission parameters, and determines the DMRS port of each transmission parameter according to the DMRS port indicated by the Antenna ports field and the number of transmission layers corresponding to each transmission parameter.

The DMRS ports of the plurality of transmission parameters are determined according to the DMRS ports indicated by the Antenna ports field and the number of transmission layers corresponding to the respective transmission parameters, and there may be various cases as follows. The various situations are not necessarily independent of each other, and may be combined/combined with each other to obtain a new situation, and the new situation also falls within the scope of protection claimed in the present application, which is not specifically limited and described in detail.

Case (1):

in some possible implementations, if the plurality of transmission parameters includes 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

The first transmission parameter may be associated with a DMRS port indicated by an Antenna ports field; and/or the number of the groups of groups,

the DMRS ports of the second transmission parameters include at least DMRS ports associated with phase tracking reference signals (phase tracking reference signal, PTRS) of the second transmission parameters, the DMRS ports associated with PTRS being in the DMRS ports indicated by the Antenna ports field.

It is understood that, of the two transmission parameters, a first transmission parameter having a larger number of transmission layers may be associated with the DMRS port indicated by the Antenna ports field, while a second transmission parameter having 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 in the DMRS port indicated by the Antenna ports field.

That is, for the DMRS port corresponding to the first transmission parameter of the larger number of transmission layers, the DMRS port indicated by the Antenna ports field is not needed to be further selected. However, for the DMRS port corresponding to the second transmission parameter of the smaller transmission layer number, it is necessary to select from the DMRS ports indicated by the Antenna ports field. Where, when selecting, the present application considers DMRS ports associated with PTRS, which is beneficial to enhance PUSCH performance.

It should be noted that the first transmission parameter may be any one of a plurality of transmission parameters, and the first transmission parameter is not necessarily the first transmission parameter.

In addition, the PTRS of the transmission parameter may be understood as a transmission parameter-associated PTRS. Wherein, the association relation between the transmission parameter and the PTRS can be configured (determined/indicated) through higher layer signaling and/or DCI. In this regard, the second transmission parameter may be associated with PTRS.

There may be an association between PTRS and DMRS, which may be configured (determined/indicated) by higher layer signaling and/or downlink control information (e.g., PTRS and DMRS association fields in DCI).

Case (2):

in some possible implementations, if the number of transmission layers corresponding to each of the plurality of transmission parameters is equal

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

It is understood that the DMRS ports associated with the various transmission parameters may be identical. In this way, overhead may be advantageously reduced.

3) Time division transmission scheme for PUSCH (physical uplink shared channel) oriented to multiple transmission parameters

It should be noted that, in the present application, further PUSCH transmission enhancement may be performed on the PUSCH time division transmission scheme for multiple transmission parameters based on the "4) PUSCH time division transmission scheme for multiple transmission parameters", and PUSCH transmission enhancement may be implemented by using the "mode 1", "mode 2", "mode 3", "mode 4", "mode 5", or "mode 6" described above, which will not be described herein.

11. An example illustration of a DMRS port determination method

In combination with the above, an example description is given of a DMRS port determining method in the embodiments of the present application. It should be noted that, the execution body of the method may be a network device or a terminal device, where the network device may be a chip, a chip module, a communication module, or the like, and the terminal device may be a chip, a chip module, a communication module, or the like. That is, the method may be applied to a network device or a terminal device, which is not particularly limited.

Fig. 2 is a schematic flow chart of a DMRS port method according to an embodiment of the present application, which specifically includes the following steps:

s210, determining a DMRS port of each transmission parameter of a plurality of transmission parameters, where the plurality of transmission parameters includes 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 PUSCH.

It should be noted that, the details of the "multiple transmission parameters", "how to determine DMRS ports of each transmission parameter in the multiple transmission parameters", "TCI status", "SRS resources", "SRS resource set", and "TRP" may be described above, and will not be described herein.

In some possible implementations, the determining the DMRS port of each of the plurality of transmission parameters in S210 may include:

and determining the DMRS port of each transmission parameter in the plurality of transmission parameters according to the plurality of fields in the DCI, wherein each field in the plurality of fields is used for indicating the DMRS port of one transmission parameter in the plurality of transmission parameters.

Alternatively, the DCI may be used to schedule or activate PUSCH.

It should be noted that, in combination with the content in the foregoing "mode 1", multiple fields may be introduced into DCI, and one field indicates a DMRS port of one transmission parameter, so as to implement determining, according to multiple fields in the DCI, the DMRS port of each transmission parameter in multiple transmission parameters.

and determining the DMRS ports of each of the plurality of transmission parameters according to a plurality of fields in the network configuration information, wherein each of the plurality of fields is used for indicating the DMRS ports of one of the plurality of transmission parameters.

It should be noted that, in combination with the content in the foregoing "mode 1", multiple fields may be introduced in the network configuration information, and one field indicates a DMRS port of one transmission parameter, so as to implement determining, according to the multiple fields in the network configuration information, the DMRS port of each transmission parameter in the multiple transmission parameters.

And determining the DMRS ports of each transmission parameter in the plurality of transmission parameters according to the DMRS ports indicated by the antenna port field in the DCI.

It should be noted that, in combination with the foregoing description of "mode 3", the present application may 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 may be associated with the DMRS port indicated by the antenna port field, thereby implementing 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 ports of each of the plurality of transmission parameters may be determined according to an ascending order of indexes or a descending order of indexes of the DMRS ports indicated by the antenna port field.

It should be noted that, in combination with the content in the above "case a" and "case B", the present application may perform ascending sorting or descending sorting on the DMRS ports indicated by the antenna port field according to the index, and determine the DMRS ports of each transmission parameter according to the DMRS ports after the ascending sorting or descending sorting of the index, so that each transmission parameter in the multiple transmission parameters may be associated with the DMRS port indicated by the antenna port field, thereby implementing the possibility of PUSCH transmission facing the multiple transmission parameters through the DMRS port indicated by the antenna port field.

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

It should be noted that, in combination with the content in the above "case C", the present application may determine the DMRS ports of each transmission parameter directly according to the original index order without ordering the DMRS ports indicated by the antenna port field in any way, so that each transmission parameter may be associated with the DMRS port indicated by the antenna port field, thereby implementing the possibility of PUSCH transmission facing 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 of the plurality of transmission parameters is 3

The DMRS ports of each of the plurality of transmission parameters may be determined according to an increasing order of indexes or a decreasing order of indexes of the DMRS ports indicated by the antenna port field; or,

the DMRS ports of each of the plurality of transmission parameters may be sequentially or alternately determined according to the original index order of the DMRS ports indicated by the antenna port field.

It should be noted that, in combination with the content in the above "case a", some limitation may be introduced in the present application to choose to use the above "mode 3". If the constraint is "the number of transmission layers corresponding to at least one transmission parameter among the plurality of transmission parameters is 3", the above-described "mode 3" is adopted. It can be seen that the above-mentioned "mode 3" can support the situation that the number of transmission layers is 3 very flexibly.

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

and determining the DMRS ports of each transmission parameter in the plurality of transmission parameters according to the DMRS code division multiple access group to which the DMRS ports indicated by the antenna port field in the DCI belong.

It should be noted that, in combination with the content in the foregoing "mode 2", the present application may determine the DMRS ports of each transmission parameter according to the DMRS code division multiple access group to which the DMRS ports indicated by the antenna port field belong, so that each transmission parameter may be associated with a DMRS port in the DMRS code division multiple access group, thereby implementing the possibility of PUSCH transmission facing 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 plurality of transmission parameters belong to different DMRS code division multiple access groups.

It should be noted that, in combination with the content in the above "mode 2", since the DMRS ports of each transmission parameter may belong to different DMRS code division multiple access groups, interference between the DMRS ports of each transmission parameter may be well avoided, so as to improve PUSCH transmission.

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

the DMRS ports of other transmission parameters in the plurality of 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, in combination with the content in the above "case 1", the present application may consider the sequence of each transmission parameter in the multiple transmission parameters and the sequence of the DMRS ports indicated by the antenna port field, so that the first transmission parameter is associated with the DMRS code division multiple access group to which the first DMRS port belongs, and the other transmission parameters are associated with other DMRS code division multiple access groups, so that the DMRS ports implementing each transmission parameter may belong to different DMRS code division multiple access groups.

In some possible implementations, the DMRS ports 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.

The DMRS ports indicated by the Antenna port field specifically belong to which DMRS code division multiple access group or groups in combination with the contents of the "9, antenna ports (Antenna ports) field in DCI" described above, and may be configured by a network, preconfigured, or specified by a standard protocol.

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 ports of each of the plurality of transmission parameters are determined according to an increasing order of the index or a decreasing order of the index of the DMRS ports indicated by the antenna port field; or,

the DMRS ports of each of the plurality of transmission parameters are determined sequentially or alternately according to the original index ordering of the DMRS ports indicated by the antenna port field.

It should be noted that, in combination with the content in the above "case b", some limitation conditions may be introduced in the present application to choose to use the above "mode 3". If the constraint is "DMRS ports indicated by the antenna port field belong to the same DMRS code division multiple access group", the above "mode 3" is adopted. It can be seen that the DMRS ports of each transmission parameter in the above "mode 3" may belong to the same dmrsdm group, so that interference may exist between the 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 plurality of transmission parameters belong to different DMRS code division multiple access groups.

It should be noted that, in combination with the content in the above "case b", some limitation conditions may be introduced in the present application to choose to use the above "mode 2". If the constraint is "DMRS ports indicated by the antenna port field belong to different DMRS code division multiple access groups", the above-mentioned "mode 2" is adopted. It can be seen that the DMRS ports of each transmission parameter in the above "mode 2" may 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 plurality of transmission parameters share the DMRS port indicated by the same antenna port field.

It should be noted that, in combination with the content in the foregoing "mode 5", the DMRS ports of each transmission parameter may be determined according to the DMRS port indicated by the antenna port field, so that the DMRS ports of each transmission parameter may share the same DMRS port.

and determining the DMRS ports of each transmission parameter in the plurality of transmission parameters according to the DMRS ports indicated by the antenna port field in the DCI and the transmission layer numbers corresponding to each transmission parameter in the plurality of transmission parameters.

It should be noted that, in combination with the content in the foregoing "mode 6", the DMRS ports of the multiple transmission parameters may be determined by the DMRS ports indicated by the antenna port field and the number of transmission layers corresponding to each transmission parameter, so that the possibility of PUSCH transmission for the multiple transmission parameters is achieved through the DMRS ports and the number of transmission layers indicated by the antenna port field.

A first transmission parameter associated with a DMRS port indicated by the antenna port field; and/or the number of the groups of groups,

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

It should be noted that, in conjunction with the content in the above "case (1)", among the two transmission parameters, the first transmission parameter having a larger transmission layer number may be associated with the DMRS port indicated by the antenna port field, and the second transmission parameter having a smaller transmission 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 plurality of transmission parameters share the DMRS port indicated by the same antenna port field.

It should be noted that, in conjunction with the content in the above "case (2)", a certain limitation condition is introduced in the present application to determine the DMRS port of each transmission parameter. If the constraint is "the number of transmission layers corresponding to each transmission parameter is equal", the above-described "mode 5" may be adopted.

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

The foregoing description of the embodiments of the present application has been presented primarily from a method-side perspective. It will be appreciated that the terminal device or network device, in order to implement the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as outside the scope of this application.

The embodiment of the application can divide the functional units of the terminal equipment or the network equipment according to the method example. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units described above may be implemented either in hardware or in software program modules. It should be noted that, in the embodiment of the present application, the division of the units is schematic, but only one logic function is divided, and another division manner may be implemented 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 determination apparatus 300 includes: a determining unit 301.

In some possible implementations, the determining unit 301 may be a module unit for processing signals, data, information, and the like, which is not particularly limited.

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

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

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

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

For another example, the determination unit 301 may be integrated in a processing unit.

The communication unit may be a communication interface, a transceiver circuit, or the like.

The processing unit may be a processor or controller, and may be, for example, a baseband processor, a baseband chip, a central processing unit (central processing unit, CPU), a general purpose processor, a digital signal processor (digital signal processor, DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processing unit may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of DSPs and microprocessors, etc.

In some possible implementations, the determining unit 301 is configured to perform any step performed by the terminal device/chip module, etc., such as sending or receiving data, etc., in the above-described method embodiments. The following is a detailed description.

In particular implementation, the determining unit 301 is configured to perform any step in the method embodiments described above, and when performing an action such as sending, the determining unit may optionally invoke other units to complete the corresponding operation. The following is a detailed description.

A determining unit 301, configured to determine a DMRS port of each of a plurality of transmission parameters, where the plurality of transmission parameters includes 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 PUSCH.

It should be noted that, the specific implementation of each operation in the embodiment shown in fig. 3 may be described in detail in the above-shown method embodiment, and will not be described in detail herein.

Alternatively, the DCI may be used to schedule or activate PUSCH.

It should be noted that, in combination with the content in the above "case b", some limitation conditions may be introduced in the present application to choose to use the above "mode 3". If the constraint is "DMRS ports indicated by the antenna port field belong to the same DMRS code division multiple access group", the above "mode 3" is adopted. It can be seen that the DMRS ports of each transmission parameter in the above "mode 3" may belong to the same DMRS CDM group, so that interference may exist between the DMRS ports.

4. Example illustration of terminal equipment

Referring to fig. 4, fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application. Wherein the terminal device 400 comprises a processor 410, a memory 420 and a communication bus for connecting the processor 410 and the memory 420.

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

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

In some possible implementations, the processor 410 may be one or more Central Processing Units (CPUs), which may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU) in the case where the processor 410 is one.

In some possible implementations, the processor 410 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.

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

a DMRS port for each of a 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, a plurality of TRPs is determined, the plurality of transmission parameters for PUSCH.

It should be noted that, the specific implementation of each operation may be described in the above-illustrated method embodiment, and the terminal device 400 may be used to execute the method embodiment of the present application, which is not described herein.

5. An illustration of a network device

Referring to fig. 5, fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application. Wherein the network device 500 comprises a processor 510, a memory 520 and a communication bus for connecting the processor 510 and the memory 520.

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

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

In some possible implementations, the processor 510 may be one or more Central Processing Units (CPUs), which may be a single-core Central Processing Unit (CPU) or a multi-core Central Processing Unit (CPU) in the case where the processor 510 is one.

In some possible implementations, the processor 510 may be a baseband chip, a Central Processing Unit (CPU), a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof.

In some possible implementations, the processor 510 in the network device 500 is configured 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 may be described in the foregoing method embodiment, and the network device 500 may be used to execute the foregoing method embodiment of the present application, which is not described herein again.

6. Other related exemplary illustrations

In some possible implementations, the above-described method embodiments may be applied to or among terminal devices. That is, the execution body of the above-described method embodiment may be a terminal device, and may be a chip, a chip module, a module, or the like, which is not particularly limited.

In some possible implementations, the above-described method embodiments may be applied to or among network devices. That is, the execution body of the above-mentioned method embodiment may be a network device, and may be a chip, a chip module or a module, which is not limited in particular.

The embodiment of the application also provides a chip, which comprises a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.

The embodiment of the application also provides a chip comprising a processor and a communication interface, wherein the processor executes the steps described in the embodiment of the method.

The embodiment of the application also provides a chip module, which comprises a transceiver component and a chip, wherein the chip comprises a processor, a memory and a computer program or instructions stored on the memory, and the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.

The present application also provides a computer-readable storage medium storing a computer program or instructions that, when executed, implement the steps described in the method embodiments above.

Embodiments of the present application also provide a computer program product comprising a computer program or instructions which, when executed, implement the steps described in the method embodiments above.

The embodiment of the application also provides a communication system which comprises the terminal equipment and the network equipment.

For the above embodiments, for simplicity of description, the same is denoted as a series of combinations of actions. It will be appreciated by those skilled in the art that the present application is not limited by the illustrated ordering of acts, as some steps may be performed in other order or concurrently in embodiments of the present application. In addition, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts, steps, modules, units, etc. that are referred to are not necessarily required in the embodiments of the application.

In the foregoing embodiments, the descriptions of the embodiments of the present application are focused on each embodiment, and for a portion of one embodiment that is not described in detail, reference may be made to the related descriptions of other embodiments.

The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by executing software instructions by a processor. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, electrically Erasable EPROM (EEPROM), registers, hard disk, a removable disk, a compact disk read-only (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be located in a terminal device or a management device. The processor and the storage medium may reside as discrete components in a terminal device or management device.

Those of skill in the art will appreciate 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, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The respective apparatuses and the respective modules/units included in the products described in the above embodiments may be software modules/units, may be hardware modules/units, or may be partly software modules/units, and partly hardware modules/units. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal device, each module/unit included in the device may be implemented in hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal device, or at least some modules/units may be implemented in a software program, where the software program runs on a processor integrated within the terminal device, and the remaining (if any) part of the modules/units may be implemented in hardware such as a circuit.

The foregoing embodiments have been provided for the purpose of illustrating the embodiments of the present application in further detail, and it should be understood that the foregoing embodiments are merely illustrative of the embodiments of the present application and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalents, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application are included in the scope of the embodiments of the present application.

Claims

1. A demodulation reference signal port determination method, comprising:

2. The method of claim 1, wherein the determining the DMRS port for each of the plurality of transmission parameters comprises:

and determining the DMRS ports of each transmission parameter in the plurality of transmission parameters according to a plurality of fields in Downlink Control Information (DCI), wherein each field in the plurality of fields is used for indicating the DMRS port of one transmission parameter in the plurality of transmission parameters.

3. The method of claim 1, wherein the determining the DMRS port for each of the plurality of transmission parameters comprises:

and determining the DMRS ports of each transmission parameter in the plurality of transmission parameters according to the DMRS ports indicated by the antenna port fields in the DCI.

4. The method of claim 3, wherein the DMRS ports for each of the plurality of transmission parameters are determined according to an ascending order of indexes or a descending order of indexes of the DMRS ports indicated by the antenna port field.

5. The method of claim 3, wherein the DMRS ports for each of the plurality of transmission parameters are determined sequentially or alternately based on a raw order of DMRS ports indicated by the antenna port field.

6. The method of claim 3, wherein if the number of transmission layers corresponding to at least one of the plurality of transmission parameters is 3

The DMRS ports of each of the plurality of transmission parameters are determined according to an increasing order of indexes or a decreasing order of indexes of the DMRS ports indicated by the antenna port field; or,

And the DMRS ports of each transmission parameter in the plurality of transmission parameters are sequentially or alternately determined according to the original index sequence of the DMRS ports indicated by the antenna port field.

7. The method of claim 3, wherein the determining the DMRS port for each of the plurality of transmission parameters based on the DMRS port indicated by the antenna port field in the DCI comprises:

8. The method of claim 7, wherein the DMRS ports of each of the plurality of transmission parameters belong to different DMRS code division multiple access groups.

9. The method of claim 7, wherein the DMRS port of the first one of the plurality of transmission parameters belongs to a DMRS code division multiple access group to which the first one of the DMRS ports indicated by the antenna port field belongs;

and the DMRS ports of other transmission parameters in the plurality of 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.

10. The method of claim 7, wherein the DMRS ports indicated by the antenna port field belong to multiple DMRS code division multiple access groups or to the same DMRS code division multiple access group.

11. The method of claim 10 wherein if the DMRS ports indicated by the antenna port field belong to the same DMRS code division multiple access group

12. The method of claim 10 wherein if the DMRS port indicated by the antenna port field belongs to a different DMRS code division multiple access group

And the DMRS ports of each transmission parameter in the plurality of transmission parameters belong to different DMRS code division multiple access groups.

13. The method of claim 3, wherein the DMRS ports of each of the plurality of transmission parameters share the same DMRS port indicated by the antenna port field.

14. The method of claim 1, wherein the determining the DMRS port for each of the plurality of transmission parameters comprises:

and determining the DMRS ports of each of the plurality of transmission parameters according to the DMRS ports indicated by the antenna port field in the DCI and the transmission layer numbers corresponding to each of the plurality of transmission parameters.

15. The method of claim 14, wherein if the plurality of transmission parameters includes 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

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

the second transmission parameter at least comprises a DMRS port associated with a phase tracking reference signal PTRS of the second transmission parameter, wherein the DMRS port associated with the PTRS is in the DMRS port indicated by the antenna port field.

16. The method of claim 14, wherein if the number of transmission layers corresponding to each of the plurality of transmission parameters is equal

And the DMRS ports of each transmission parameter in the plurality of transmission parameters share the same DMRS port indicated by the antenna port field.

17. A demodulation reference signal port determination device, comprising:

18. A terminal device comprising 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 carry out the steps of the method according to any one of claims 1-16.

19. A network device comprising 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 the steps of the method of any one of claims 1-16.

20. A chip comprising a processor and a communication interface, wherein the processor performs the steps of the method of any of claims 1-16.

21. A computer readable storage medium, characterized in that it stores a computer program or instructions which, when executed, implement the steps of the method of any one of claims 1-16.