CN116349196A

CN116349196A - Uplink communication method and device based on multi-panel simultaneous transmission

Info

Publication number: CN116349196A
Application number: CN202380008190.9A
Authority: CN
Inventors: 高雪媛
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-06-27
Also published as: WO2024164278A1

Abstract

The embodiment of the application discloses an uplink communication method and device based on multi-panel simultaneous transmission, which are characterized in that first indication information sent by network equipment is received and used for indicating a demodulation reference signal (DMRS) port used for PUSCH transmission, wherein the PUSCH transmission is based on single DCI space division multiplexing multi-antenna panel simultaneous transmission, second indication information sent by the network equipment is received and used for indicating transmission layer number information respectively corresponding to a plurality of PUSCH transmission occasions of the PUSCH, wherein the plurality of PUSCH transmission occasions are transmitted in a plurality of TCI states and/or directions corresponding to TRP, the DMRS port corresponding to each PUSCH transmission occasion is determined, the DMRS port used for transmission can be flexibly configured, the transmission interference between the multi-antenna panels is effectively reduced, the reliability and the robustness of the transmission are effectively improved, and the system communication efficiency is improved.

Description

Uplink communication method and device based on multi-panel simultaneous transmission

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an uplink communication method and apparatus based on simultaneous transmission of multiple planes.

Background

In order to improve coverage at the cell edge, to provide a more balanced quality of service in the service area, coordinated multi-point transmission (Coordinated Multiple Point transmission, coMP) technology is still an important technical means in NR (New Radio) systems. From the viewpoint of guaranteeing link connection robustness, the cooperation between a plurality of transmitting and receiving points (Transmission and Reception Point, TRP) or panels (panels) can be utilized to transmit/receive from a plurality of beams at a plurality of angles, so that adverse effects caused by blocking effects can be reduced.

Presently, rel18 considers simultaneous transmission enhancement based on multiple transmit-receive points (MultiTransmission and Reception Point, M-TRP) of a multi-panel terminal device for a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH)/physical uplink control channel (Physical Uplink Control Channel, PUCCH).

Disclosure of Invention

An embodiment of a first aspect of the present application provides an uplink communication method based on simultaneous transmission of multiple planes, where the method is performed by a terminal device, and the method includes:

receiving first indication information sent by network equipment, wherein the first indication information is used for indicating a total demodulation reference signal (DMRS) port used for Physical Uplink Shared Channel (PUSCH) transmission, and the PUSCH transmission is that a Space Division Multiplexing (SDM) multi-antenna panel based on single Downlink Control Information (DCI) simultaneously transmits STxMP;

Receiving second indication information sent by the network device, where the second indication information is used to indicate transmission layer RANK information corresponding to a plurality of PUSCH transmission occasions of the PUSCH, where the plurality of PUSCH transmission occasions are transmitted in a direction corresponding to a plurality of transmission configuration indication TCI states and/or transmission receiving points TRP;

and determining the DMRS ports corresponding to the PUSCH transmission opportunities.

An embodiment of a second aspect of the present application proposes an uplink communication method based on simultaneous transmission of multiple planes, where the method is performed by a network device, and the method includes:

transmitting first indication information to terminal equipment, wherein the first indication information is used for indicating a total demodulation reference signal (DMRS) port for Physical Uplink Shared Channel (PUSCH) transmission, and the PUSCH transmission is that a Space Division Multiplexing (SDM) multi-antenna panel based on single Downlink Control Information (DCI) simultaneously transmits STxMP;

and sending second indication information to the terminal equipment, wherein the second indication information is used for indicating transmission layer number RANK information corresponding to a plurality of PUSCH transmission occasions of the PUSCH respectively, and the plurality of PUSCH transmission occasions are transmitted in a plurality of Transmission Configuration Indication (TCI) states and/or directions corresponding to Transmission Receiving Points (TRP).

An embodiment of a third aspect of the present application provides an uplink communication device based on simultaneous transmission of multiple boards, where the device includes:

a transceiver unit, configured to receive first indication information sent by a network device, where the first indication information is used to indicate a DMRS port of a total demodulation reference signal used for PUSCH transmission of a physical uplink shared channel, where the PUSCH transmission is STxMP simultaneous transmission by a spatial multiplexing SDM multi-antenna panel based on single downlink control information DCI;

the transceiver unit is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate transmission layer RANK information corresponding to a plurality of PUSCH transmission occasions of the PUSCH, where the plurality of PUSCH transmission occasions are transmitted in a direction corresponding to a plurality of transmission configuration indication TCI states and/or transmission reception points TRP;

and the processing unit is used for determining the DMRS ports corresponding to the PUSCH transmission opportunities.

An embodiment of a fourth aspect of the present application provides an uplink communication device based on simultaneous transmission of multiple planes, where the device includes:

a transceiver unit, configured to send first indication information to a terminal device, where the first indication information is used to indicate a DMRS port of a total demodulation reference signal used for PUSCH transmission of a physical uplink shared channel, where the PUSCH transmission is STxMP simultaneous transmission by a spatial multiplexing SDM multi-antenna panel based on single downlink control information DCI;

The transceiver unit is further configured to send second indication information to the terminal device, where the second indication information is used to indicate transmission layer RANK information corresponding to a plurality of PUSCH transmission occasions of the PUSCH, where the plurality of PUSCH transmission occasions are transmitted in a direction corresponding to a plurality of transmission configuration indication TCI states and/or transmission receiving points TRP.

An embodiment of a fifth aspect of the present application proposes a communication device, where the device includes a processor and a memory, where the memory stores a computer program, and the processor executes the computer program stored in the memory, so that the device performs the uplink communication method based on the simultaneous transmission of multiple planes according to the embodiment of the first aspect.

An embodiment of a sixth aspect of the present application proposes a communication apparatus, where the apparatus includes a processor and a memory, where the memory stores a computer program, and the processor executes the computer program stored in the memory, so that the apparatus performs the uplink communication method based on the multi-plane simultaneous transmission according to the embodiment of the second aspect.

An embodiment of a seventh aspect of the present application proposes a communication device, where the device includes a processor and an interface circuit, where the interface circuit is configured to receive code instructions and transmit the code instructions to the processor, and where the processor is configured to execute the code instructions to cause the device to perform the uplink communication method based on the multi-panel simultaneous transmission according to the embodiment of the first aspect.

An eighth aspect of the present application proposes a communication device, the device comprising a processor and an interface circuit for receiving code instructions and transmitting the code instructions to the processor, the processor being configured to execute the code instructions to cause the device to perform the uplink communication method based on multi-panel simultaneous transmission according to the second aspect of the present application.

An embodiment of a ninth aspect of the present application proposes a computer readable storage medium storing instructions that, when executed, enable the uplink communication method based on multi-panel simultaneous transmission described in the above embodiment of the first aspect to be implemented.

An embodiment of a tenth aspect of the present application proposes a computer readable storage medium storing instructions that, when executed, cause an uplink communication method based on multi-panel simultaneous transmission according to the above-described second aspect embodiment to be implemented.

An eleventh aspect of the present application proposes a computer program, which when run on a computer, causes the computer to perform the uplink communication method based on simultaneous transmission of multiple boards according to the first aspect of the present application.

An embodiment of a twelfth aspect of the present application proposes a computer program, which when run on a computer, causes the computer to perform the uplink communication method based on simultaneous transmission of multiple planes according to the embodiment of the second aspect.

According to the uplink communication method and device based on multi-panel simultaneous transmission, the first indication information sent by the network equipment is received, the first indication information is used for indicating a total demodulation reference signal (DMRS) port used for Physical Uplink Shared Channel (PUSCH) transmission, wherein the PUSCH transmission is based on spatial multiplexing (SDM) multi-antenna panel simultaneous transmission (STxMP) of single Downlink Control Information (DCI), the second indication information sent by the network equipment is received, the second indication information is used for indicating transmission layer number (RANK) information respectively corresponding to a plurality of PUSCH transmission occasions of the PUSCH, the plurality of PUSCH transmission occasions are transmitted in a direction corresponding to a plurality of Transmission Configuration Indication (TCI) states and/or Transmission Receiving Points (TRP), the DMRS port corresponding to each PUSCH transmission occasion is determined, the DMRS port used for transmission can be flexibly configured, transmission interference between the multi-antenna panels is effectively reduced, reliability and robustness of transmission are effectively improved, and communication efficiency of a system is improved.

Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.

Drawings

In order to more clearly describe the technical solutions in the embodiments or the background of the present application, the following description will describe the drawings that are required to be used in the embodiments or the background of the present application.

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

fig. 1b is a logic schematic diagram of a single DCI based multi-panel transmission implementation according to an embodiment of the present application;

fig. 2 is a schematic flow chart of an uplink communication method based on simultaneous transmission of multiple boards according to an embodiment of the present application;

fig. 3a is a schematic diagram of DMRS pattern with configuration type1 and occupying 1 symbol in time domain;

fig. 3b is a schematic diagram of DMRS pattern with configuration type1 and 2 symbols occupied in time domain;

fig. 3c is a schematic diagram of DMRS pattern with configuration type2 and 1 symbol occupied in time domain;

fig. 3d is a schematic diagram of DMRS pattern with configuration type2 and 2 symbols occupied in time domain;

fig. 4 is a schematic flow chart of an uplink communication method based on simultaneous transmission of multiple boards according to an embodiment of the present application;

fig. 5 is a schematic flow chart of an uplink communication method based on simultaneous transmission of multiple boards according to an embodiment of the present application;

fig. 6 is a schematic flow chart of an uplink communication method based on simultaneous transmission of multiple boards according to an embodiment of the present application;

Fig. 7 is a schematic structural diagram of an uplink communication device based on simultaneous transmission of multiple boards according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an uplink communication device based on simultaneous transmission of multiple boards according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of another uplink communication device based on simultaneous transmission of multiple boards according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a chip according to an embodiment of the disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present application. Rather, they are merely examples of apparatus and methods consistent with aspects of embodiments of the present application as detailed in the accompanying claims.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the application. As used in this application in the examples and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present application. The words "if" and "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

In order to better understand an uplink communication method based on simultaneous transmission of multiple planes disclosed in the embodiments of the present application, a communication system applicable to the embodiments of the present application is first described below.

Referring to fig. 1a, fig. 1a is a schematic architecture diagram of a communication system according to an embodiment of the present application. The communication system may include, but is not limited to, one network device and one terminal device, and the number and form of devices shown in fig. 1a are only used as examples and not limiting to the embodiments of the present application, and in practical applications, two or more network devices and two or more terminal devices may be included. The communication system shown in fig. 1a is exemplified as comprising a network device 101 and a terminal device 102.

It should be noted that the technical solution of the embodiment of the present application may be applied to various communication systems. For example: a long term evolution (Long Term Evolution, LTE) system, a fifth generation mobile communication system, a 5G new air interface system, or other future new mobile communication systems, etc.

The network device 101 in the embodiment of the present application is an entity on the network side for transmitting or receiving signals. For example, the network device 101 and may be an Evolved NodeB (eNB), a transmission point (Transmission Reception Point, TRP), a Next Generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems or an access node in a wireless fidelity (Wireless Fidelity, wiFi) system, etc. The embodiment of the application does not limit the specific technology and the specific device form adopted by the network device. The network device provided in this embodiment of the present application may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a Control Unit (Control Unit), and the structure of the CU-DU may be used to split the protocol layers of the network device, for example, a base station, where functions of part of the protocol layers are placed in the CU for centralized Control, and functions of part or all of the protocol layers are Distributed in the DU for centralized Control of the DU by the CU.

The terminal device 102 in this embodiment of the present application is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The Terminal device may also be referred to as a Terminal device (Terminal), a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal device (MT), etc. The terminal device may be an automobile with communication function, a Smart car, a Mobile Phone (Mobile Phone), an internet of things (Internet of Things, ioT) terminal, a wearable device, a tablet (Pad), a computer with 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 Self-Driving, a wireless terminal device in teleoperation (Remote Medical Surgery), 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), a wireless terminal device in Smart Home (Smart Home), and the like. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the terminal equipment.

In order to improve coverage at the cell edge, to provide a more balanced quality of service in the service area, coordinated multi-point transmission (Coordinated Multiple Point transmission, coMP) technology is still an important technical means in NR (New Radio) systems. From the viewpoint of guaranteeing the link connection robustness, transmission/Reception can be performed from multiple beams at multiple angles by utilizing cooperation among multiple Transmission/Reception points (TRPs) or panels, so that adverse effects caused by blocking effects are reduced.

The coordinated multi-point transmission technique can be classified into two kinds of coherent and incoherent transmission according to the mapping relation of the transmission signal stream to the plurality of TRP/panels. Wherein each data layer is mapped onto a plurality of TRPs/panels by a weight vector during coherent transmission. Whereas in non-coherent transmission, each data stream is mapped onto only part of the TRP/panel. Coherent transmission has higher requirements for synchronization between transmission points and transmission capability of backhaul links, and is thus sensitive to many non-ideal factors in realistic deployment conditions. In contrast, incoherent transmission is less affected by the above factors and is therefore an important consideration for multipoint transmission techniques.

Presently, rel 18 considers simultaneous transmission enhancement based on multiple transmit-receive points (MultiTransmission and Reception Point, M-TRP) of a multi-panel (panel) terminal device for a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH)/physical uplink control channel (Physical Uplink Control Channel, PUCCH).

That is, it is mainly considered that in a Multi-TRP scenario, uplink simultaneous transmission is performed by using a Multi-panel terminal to increase the uplink rate and further increase the reliability of the transmission. The transmission may be scheduled based on one DCI carried by one PDCCH channel, or may be scheduled separately considering different DCIs carried by different PDCCHs. The currently considered synchronous transmission schemes are mainly implemented based on space division multiplexing (Space Division Multiplexing, SDM) or frequency division multiplexing (Frequency Division Multiplexing, FDM) without channel transmission of Panel. As shown in fig. 1b, fig. 1b is a logic diagram of a multi-panel transmission implementation based on single downlink control information (Downlink Control Information, DCI; single DCI, S-DCI) provided in the present application.

The terminal multi-panel implementation generally configures multiple physical panels, and the capabilities of different panels may also be different, for example, the multiple panels may have different numbers of sounding reference signal (Sounding Reference Signal, SRS) ports, or the maximum number of data transmission layers supported by the multiple panels may not be necessarily the same, for example, one panel supports transmission of maximum 2 layers, and another panel supports transmission of maximum 4 layers. The network scheduler may determine whether the terminal is currently suitable for uplink simultaneous transmission of multiple panels, and if the terminal is currently suitable for uplink simultaneous transmission of multiple panels and is scheduled simultaneously, the network may directly or indirectly indicate relevant transmission parameters, including terminal specific beam indication information, number of data layers used for transmission, port allocation condition of used demodulation reference signals (Demodulation Reference Signal, DMRS), precoding indication information, and the like. In the embodiments of the present application, it is mainly required to determine the DMRS port indication problem under the S-DCI scheduling, that is, how to determine which DMRS ports are used for transmitting PUSCH on different panels respectively. Note that, for a data channel (physical downlink shared channel (PhysicalDownlink Shared Channel, PDSCH)/PUSCH) in the NR system, a data layer of data transmission corresponds to a DMRS port used for demodulation.

It may be understood that, the communication system described in the embodiments of the present application is for more clearly describing the technical solution of the embodiments of the present application, and is not limited to the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of a new service scenario, the technical solution provided in the embodiments of the present application is equally applicable to similar technical problems.

The uplink communication method and the device based on the multi-panel simultaneous transmission provided by the application are described in detail below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flow chart of an uplink communication method based on simultaneous transmission of multiple boards according to an embodiment of the present application. It should be noted that, the uplink communication method based on the multi-panel simultaneous transmission in the embodiment of the present application is executed by the terminal device. The method may be performed independently or in combination with any of the other embodiments of the present application. As shown in fig. 2, the method may include the steps of:

in step 201, first indication information sent by a network device is received, where the first indication information is used to indicate a total DMRS port used for PUSCH transmission.

In the embodiment of the application, the PUSCH transmission is space division multiplexing (Space Division Multiplexing, SDM) multi-antenna panel simultaneous transmission (Simultaneous Transmission from Multiple Panels, STxMP) based on single downlink control information (Downlink Control Information, DCI; single DCI, S-DCI).

Note that, in Rel 18, the SDM uplink STxMP scheme based on the S-DCI includes: different parts of one transport block (Transmission Block, TB) of the PUSCH are respectively sent on the same time-frequency resource through respectively corresponding DMRS ports or port combinations allocated on different panels, respectively, facing two different TRPs, and different panel/TRP/transmission opportunities (Transmission Occasion, TO) are respectively associated with different transmission configuration indication (Transmission Configuration Indication, TCI) states (states), i.e. beams.

The TO of the PUSCH refers TO that different data layers of one transport block of the PUSCH are sent on the same time-frequency resource by facing different TRPs through different panels of the terminal, wherein a part of PUSCH data layers transmitted on a transmission link of each panel-TRP corresponds TO one PUSCH transmission opportunity.

In the embodiment of the present application, the terminal device may receive first indication information sent by the network device, where the first indication information may be used to indicate that the network side allocates to a total DMRS port for PUSCH transmission.

In each embodiment of the present application, the number of transmission layers of the PUSCH is at most 4.

Alternatively, the first indication information may be DCI.

Further, the first indication information may be an antenna port (antenna ports) indication field in DCI.

It should be noted that, the DMRS design for the data channel (PUSCH/PDSCH) in the NR system at present mainly includes the following aspects:

(1) pre-DMRS (front-loadDMRS): the location where the DMRS first appears should be as close to the start point of scheduling as possible within each scheduling time unit. The use of front-loadDMRS helps the receiving side to estimate the channel quickly and perform reception detection, and plays an important role in reducing latency and supporting a so-called self-contained structure. Depending on the total number of orthogonal DMRS ports, the front-loadDMRS may occupy at most two consecutive orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols.

(2) Additional DMRS (additionalDMRS): for low mobility scenarios, the front-loadDMRS can obtain channel estimation performance meeting demodulation requirements with lower overhead. However, the NR system has a large dynamic range of movement speed, and needs to consider a scenario of high-speed movement, and in addition to front-loadDMRS, in a medium/high-speed scenario, more DMRS symbols need to be inserted in the scheduling duration to satisfy the accuracy of estimating the channel time variability. To solve this problem, a DMRS structure in which a front-load DMRS and a time domain density configurable additional DMRS are combined is adopted in the NR system. The pattern of each set of additionalDMRS is a repetition of the front-loadDMRS.

Within each scheduling time unit, if an additional dmrs exists, the pattern of each set of additional dmrs remains consistent with the front-loadDMRS. Therefore, the design of front-loadDMRS is the basis of the design of DMRS. The front-load DMRS design concept is divided into two types, wherein the first type (type 1) is designed based on a COMB (COMB code) +occ (Orthogonal Cover Code ) structure, and the second type (type 2) is designed based on an fdm+occ structure.

The front-loadDMRS may be configured as two OFDM symbols at most, depending on the number of orthogonal ports used for transmission. Considering the factor of power utilization efficiency, when using front-loadDMRS of two symbols, TD-OCC (Time Domain-OCC) is used in the Time Domain on the basis of frequency Domain CS or OCC.

front-loadDMRS patterns of two configuration types (configurations) are shown in fig. 3a to 3 d. Fig. 3a is a schematic diagram of DMRS pattern of type1 and occupying 1 symbol in the time domain, fig. 3b is a schematic diagram of DMRS pattern of type1 and occupying 2 symbols in the time domain, fig. 3c is a schematic diagram of DMRS pattern of type2 and occupying 1 symbol in the time domain, and fig. 3d is a schematic diagram of DMRS pattern of type2 and occupying 2 symbols in the time domain.

It can be appreciated that DMRS ports occupying the same time-frequency domain resources in the figure need to be distinguished by code division multiplexing, and belong to the same code division multiplexing (Code Division Multiplexing, CDM) group. As can be seen, in the pattern shown in fig. 3a, DMRS ports 0,1 belong to the CDM group of the same DMRS, and DMRS ports 2,3 belong to the CDM group of the same DMRS. Similarly, in the pattern shown in fig. 3b, DMRS ports 0,1,4,5 belong to the CDM group of the same DMRS, and DMRS ports 2,3,6,7 belong to the CDM group of the same DMRS. In the pattern shown in fig. 3c, DMRS ports 0,1 belong to CDM group of the same DMRS, DMRS ports 2,3 belong to CDM group of the same DMRS, and DMRS ports 4,5 belong to CDM group of the same DMRS. In the pattern shown in fig. 3d, DMRS ports 0,1,6,7 belong to CDM group of the same DMRS, DMRS ports 2,3,8,9 belong to CDM group of the same DMRS, and DMRS ports 4,5,10,11 belong to CDM group of the same DMRS.

In the embodiment of the present application, as an example, DMRS port assignments with different parameter configurations under an OFDM (CP-OFDM) waveform with a cyclic prefix in the uplink are shown in the following tables. Alternatively, the first indication information may be a code point in one indication domain in the DCI, where different code points indicate different DMRS ports allocated (for example, in a case where the DMRS type is 1, the number of symbols occupied by a preamble DMRS is 1, and the number of data transmission layers is 2, the first indication information takes a value of 0 to indicate that the total DMRS ports allocated to the PUSCH are DMRS ports numbered 0 and 1, and the DMRS ports numbered 0 and 1 belong to the same CDM group, and in a case where the DMRS type is 1, the number of symbols occupied by a preamble DMRS is 1, and the number of data transmission layers is 3, the first indication information takes a value of 0 to indicate that the total DMRS ports allocated to the PUSCH are DMRS ports numbered 0,1,2, and the DMRS ports numbered 0 and 1 belong to the same CDM group, and the DMRS ports numbered 2 belong to another CDM group).

Table 1: DMRS Type DMRS-type=1, maximum symbol length maxlength=1, data transmission layer rank=1

Table 2: dmrs-type=1, maxlength=1, rank=2

Value	Number of DMRS CDM group(s)without data	DMRS port(s)
			0	1	0,1
1	2	0,1
			2	2	2,3
3	2	0,2
			4-7	Reserved	Reserved

Table 3: dmrs-type=1, maxlength=1, rank=3

Value	Number of DMRS CDM group(s)without data	DMRS port(s)
			0	2	0-2
2-7	Reserved	Reserved

Table 4: dmrs-type=1, maxlength=1, rank=4

Value	Number of DMRS CDM group(s)without data	DMRS port(s)
			0	2	0-3
2-7	Reserved	Reserved

Table 5: dmrs-type=1, maxlength=2, rank=1

Table 6: dmrs-type=1, maxlength=2, rank=2

Table 7: dmrs-type=1, maxlength=2, rank=3

Table 8: dmrs-type=1, maxlength=2, rank=4

Value	Number of DMRS CDM group(s)without data	DMRS port(s)	Number of front-load symbols
				0	2	0-3	1
1	2	0,1,4,5	2
				2	2	2,3,6,7	2
3	2	0,2,4,6	2
				4-15	Reserved	Reserved	Reserved

Table 9: dmrs-type=2, maxlength=1, rank=1

Value	Number of DMRS CDM group(s)without data	DMRS port(s)
			0	1	0
1	1	1
			2	2	0
3	2	1
			4	2	2
5	2	3
			6	3	0
7	3	1
			8	3	2
9	3	3
			10	3	4
11	3	5
			12-15	Reserved	Reserved

Table 10: dmrs-type=2, maxlength=1, rank=2

Value	Number of DMRS CDM group(s)without data	DMRS port(s)
			0	1	0,1
1	2	0,1
			2	2	2,3
3	3	0,1
			4	3	2,3
5	3	4,5
			6	2	0,2
7-15	Reserved	Reserved

Table 11: dmrs-type=2, maxlength=1, rank=3

Table 12: dmrs-type=2, maxlength=1, rank=4

Value	Number of DMRS CDM group(s)without data	DMRS port(s)
			0	2	0-3
1	3	0-3
			2-15	Reserved	Reserved

Table 13: dmrs-type=2, maxlength=2, rank=1

Table 14: dmrs-type=2, maxlength=2, rank=2

Table 15: dmrs-type=2, maxlength=2, rank=3

Value	Number of DMRS CDM group(s)without data	DMRS port(s)	Number of front-load symbols
				0	2	0-2	1
1	3	0-2	1
				2	3	3-5	1
3	3	0,1,6	2
				4	3	2,3,8	2
5	3	4,5,10	2
				6-31	Reserved	Reserved	Reserved

Table 16: dmrs-type=2, maxlength=2, rank=4

Value	Number of DMRS CDM group(s)without data	DMRS port(s)	Number of front-load symbols
				0	2	0-3	1
1	3	0-3	1
				2	3	0,1,6,7	2
3	3	2,3,8,9	2
				4	3	4,5,10,11	2
5-31	Reserved	Reserved	Reserved

It will be appreciated that each of the elements in the various tables described above are independent, with the elements being illustratively listed in the same table, but not representing that all elements in a table must exist simultaneously in accordance with what is shown in the table. Wherein the value of each element is independent of any other element value in the table. It will be appreciated by those skilled in the art that the value of each element in the table is an independent embodiment.

Step 202, receiving second indication information sent by the network device, where the second indication information is used to indicate transmission layer number information corresponding to multiple PUSCH transmission occasions of the PUSCH.

Wherein, the plurality of PUSCH transmission opportunities are transmitted in a plurality of TCI states and/or corresponding directions of TRP.

In this embodiment of the present application, the terminal device may receive second indication information sent by the network device, and determine, according to an indication of the second indication information, transmission layer number information corresponding to multiple PUSCH transmission occasions of the PUSCH.

Optionally, the second indication information may be an SRS resource set indication (SRS resource set indicator).

In this embodiment of the present application, the PUSCH transmission timing has a correspondence relationship with at least one of the following:

codeword (CW);

a panel (panel);

a sounding reference signal, SRS, resource set;

SRS resource indication SRI (SRS Resource Indicator) indicates a domain;

transmitting a precoding matrix indicator TPMI (Transmit Precoding Matrix Indicator) indicator field;

transmitting a receiving point TRP;

indicating the TCI state of the beam.

In M-TRP transmission, two SRS resource sets are supported, and thus two SRI fields associated with the two SRS resource sets are included in the DCI, each SRI indication field indicating for one TRP SRS resources in the SRS resource set associated with the SRI field. The two SRI indication fields may correspond to different PUSCH transmission occasions. The scheduling of transmissions of single and multiple TRPs may be dynamically indicated by an indication field indicated by the SRS resource set.

In some embodiments, the number of transmission layers of PUSCH transmission occasions corresponding to a first SRI indication field or a first TPMI indication field in two SRI/TPMI indication fields is R1, the number of transmission layers of PUSCH transmission occasions corresponding to a second SRI indication field or a second TPMI indication field in two SRI/TPMI indication fields is R2, and the second indication information can be used to indicate the R1 and R2.

It may be understood that, in the PUSCH transmission based on the codebook, the PUSCH transmission occasion corresponds to an SRI indication field, and the associated SRS resource set is indicated through the SRI indication field; in non-codebook based PUSCH transmission, the PUSCH transmission occasion corresponds to a TPMI indication field through which an associated SRS resource set is indicated.

In some embodiments, the second indication information may indicate the number of transmission layers corresponding to the plurality of transmission opportunities, respectively, or may combine combination information indicating the number of transmission layers corresponding to the plurality of transmission opportunities.

As an example, the second indication information may be combined to indicate the PUSCH transmission timing corresponding to the first SRI/TPMI indication field and the transmission layer number information of the PUSCH transmission timing corresponding to the second SRI/TPMI indication field, that is, the combined information indicating the R1 and R2, for example, the transmission layer number combined information corresponding to the two transmission timings is { R1, R2}.

In some embodiments, the correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is predefined.

In some embodiments, the correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is indicated by an indication domain indicated by a set of SRS resources.

As a possible implementation manner, the correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is:

the PUSCH transmission occasion transmitted in the first direction corresponds to the first SRI domain or the first TPMI domain;

the PUSCH transmission occasion transmitted in the second direction corresponds to the second SRI domain or the second TPMI domain;

the first direction is the direction corresponding to the first TCI state and/or the first TRP, and the second direction is the direction corresponding to the second TCI state and/or the second TRP.

As another possible implementation manner, the correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is:

the PUSCH transmission occasion transmitted in the first direction corresponds to the second SRI domain or the second TPMI domain;

the PUSCH transmission occasion transmitted in the second direction corresponds to the first SRI domain or the first TPMI domain;

In some embodiments, the second indication information is an SRS resource set indication, and the first code point included in the second indication information (SRS resource set indication) is used to indicate the combination information with the number of transmission layers { R1, R2}, where the PUSCH transmission opportunity with the number of transmission layers R1 is transmitted in the first direction, and the PUSCH transmission opportunity with the number of transmission layers R2 is transmitted in the second direction;

the second code point included in the indication domain indicated by the SRS resource set is used to indicate the combined information of the transmission layer number { R2, R1}, where the PUSCH transmission opportunity with the transmission layer number R2 is transmitted in the first direction, and the PUSCH transmission opportunity with the transmission layer number R1 is transmitted in the second direction;

In each embodiment of the present application, the first indication information and the second indication information may be the same indication information or different indication information.

Step 203, determining DMRS ports corresponding to each PUSCH transmission opportunity.

In the embodiment of the present application, the terminal device can determine the DMRS port corresponding to each PUSCH transmission opportunity.

In some embodiments, the terminal device may determine the DMRS port corresponding to each PUSCH transmission occasion based on a fixed rule.

Optionally, the fixed rule may determine DMRS ports corresponding to each PUSCH transmission opportunity according to the ordering of the numbers of the DMRS ports.

In some embodiments, the terminal device can determine whether the DMRS port indicated by the first indication information belongs to a CDM group of the same DMRS.

Optionally, under the condition that each DMRS port indicated by the first indication information does not belong to the same CDM group, determining a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity, where the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission opportunity, and the first DMRS port belongs to the same CDM group, and the second DMRS port belongs to another CDM group.

Optionally, under the condition that the DMRS ports indicated by the first indication information do not belong to the same CDM group, determining a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity, where the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH, and the first DMRS port is to rank adjacent DMRS ports after the numbers of the DMRS ports indicated by the first indication information are ranked according to a first order, where the second DMRS port is the remaining DMRS port.

Optionally, under the condition that each DMRS port indicated by the first indication information belongs to the same CDM group, determining a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity, where the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission opportunity, and the first DMRS port is to rank adjacent DMRS ports after ranking the numbers of the DMRS ports indicated by the first indication information according to a first order, where the second DMRS port is the remaining DMRS port.

In summary, the first indication information is sent by the receiving network device, where the first indication information is used to indicate a total demodulation reference signal DMRS port used for PUSCH transmission of a physical uplink shared channel, where the PUSCH transmission is that a spatial multiplexing SDM multi-antenna panel based on single downlink control information DCI simultaneously transmits STxMP, and the second indication information sent by the network device is received, where the second indication information is used to indicate transmission layer RANK information corresponding to a plurality of PUSCH transmission occasions of the PUSCH, where the plurality of PUSCH transmission occasions are transmitted in a direction corresponding to a plurality of transmission configuration indication TCI states and/or transmission receiving points TRP, and DMRS ports corresponding to the PUSCH transmission occasions are determined, so that DMRS ports used for transmission can be flexibly configured, transmission interference between the multi-antenna panels is effectively reduced, reliability and robustness of transmission are effectively improved, and system communication efficiency is improved.

Referring to fig. 4, fig. 4 is a flow chart of an uplink communication method based on simultaneous transmission of multiple boards according to an embodiment of the present application. It should be noted that, the uplink communication method based on the multi-panel simultaneous transmission in the embodiment of the present application is executed by the terminal device. The method may be performed independently or in combination with any of the other embodiments of the present application. As shown in fig. 4, the method may include the steps of:

in step 401, first indication information sent by a network device is received, where the first indication information is used to indicate a total DMRS port used for PUSCH transmission.

In the embodiment of the application, the PUSCH transmission is an SDM multi-antenna panel based on S-DCI transmitting STxMP simultaneously.

It may be appreciated that the total number of ports of DMRS ports indicated by the first indication information is equal to the number of transmission layers of the PUSCH.

Alternatively, the first indication information may be DCI.

Step 402, receiving second indication information sent by the network device, where the second indication information is used to indicate transmission layer number combination information corresponding to multiple PUSCH transmission occasions of the PUSCH.

In the embodiment of the present application, the second indication information may combine the combination information indicating the number of transmission layers corresponding to the plurality of transmission opportunities.

a codeword; a panel; SRS resource collection; SRI indication field; TPMI indication field; transmitting a receiving point TRP; indicating the TCI state of the beam.

In the embodiment of the present application, two SRI indication fields and/or two TPMI indication fields are included. The transmission layer number of the PUSCH transmission occasion corresponding to the first SRI indication domain or the first TPMI indication domain in the two SRI/TPMI indication domains is R1, the transmission layer number of the PUSCH transmission occasion corresponding to the second SRI indication domain or the second TPMI indication domain in the two SRI/TPMI indication domains is R2, and the second indication information can be used to indicate the combination information of the R1 and R2.

It is to be appreciated that the indication field of SRS resource set indication may include a plurality of code points.

As an example, a first code point (such as a code point "10" or a code point "11" and so on) included in the indication domain indicated by the SRS resource set is used to indicate that a PUSCH transmission occasion corresponding to the first SRI domain or the first TPMI domain is transmitted in the first direction, where the number of transmission layers of the PUSCH transmission occasion is R1; and transmitting the PUSCH transmission opportunity corresponding to the second SRI domain or the second TPMI domain in a second direction, wherein the transmission layer number of the PUSCH transmission opportunity is R2.

The second code point (such as code point "11" or code point "10" and the like) included in the indication domain indicated by the SRS resource set is used for indicating that PUSCH transmission opportunity corresponding to the first SRI domain or the first TPMI domain is transmitted in the second direction, where the number of transmission layers of the PUSCH transmission opportunity is R1; and the PUSCH transmission opportunity corresponding to the second SRI domain or the second TPMI domain is transmitted in the first direction, and the transmission layer number of the PUSCH transmission opportunity is R2.

It can be appreciated that r1+r2 is equal to the number of transmission layers of the PUSCH.

Step 403, determining whether each DMRS port indicated by the first indication information belongs to the code division multiplexing CDM group of the same DMRS.

In this embodiment of the present application, the terminal device may determine whether each DMRS port indicated by the first indication information belongs to a CDM group of the same DMRS.

In step 404, if the DMRS ports indicated by the first indication information do not belong to the same CDM group, a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity are determined, where the first DMRS port belongs to the same CDM group and the second DMRS port belongs to another CDM group.

It can be understood that the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, and the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH.

It may be further understood that the first PUSCH transmission occasion corresponds to a first SRI domain/a first TPMI domain, and the second PUSCH transmission occasion corresponds to a second SRI domain/a second TPMI domain; the second PUSCH transmission occasion may correspond to a first SRI domain/a first TPMI domain, and the first PUSCH transmission occasion may correspond to a second SRI domain/a second TPMI domain.

In the embodiment of the present application, when it is determined that each DMRS port indicated by the first indication information does not belong to the same CDM group, the terminal device may divide each DMRS port indicated by the first indication information according to the CDM group, and allocate the DMRS ports belonging to the same CDM group to one PUSCH transmission occasion.

As an example, the number of transmission layers of PUSCH is 3, the number of transmission layers of the first PUSCH transmission occasion is 2, and the number of transmission layers of the second PUSCH transmission occasion is 1. The DMRS port indicated by the first indication information is 0,1,2, where the port {0,1} belongs to the same CDM group and the port {2} belongs to another CDM group. The DMRS ports corresponding to the first PUSCH transmission occasion are the DMRS ports numbered 0 and 1, and the DMRS port corresponding to the second PUSCH transmission occasion is the DMRS port numbered 2.

It may be appreciated that the first PUSCH transmission occasion may correspond to the first SRI domain/first TPMI domain, or may correspond to the second SRI domain/second TPMI domain. The first PUSCH transmission opportunity may be transmitted in a direction corresponding to the first TCI state and/or the first TRP, or may be transmitted in a direction corresponding to the second TCI state and/or the second TRP.

In step 405, when the DMRS ports indicated by the first indication information belong to the same CDM group, a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity are determined, where the first DMRS port is a DMRS port that is adjacent to the DMRS port ordered after the numbers of the DMRS ports indicated by the first indication information are arranged according to a first order, and the second DMRS port is the remaining DMRS port.

In this embodiment of the present application, in a case where it is determined that each DMRS port indicated by the first indication information belongs to the same CDM group, the terminal device may allocate, according to a first order of numbers, each DMRS port indicated by the first indication information to a PUSCH transmission opportunity by ordering neighboring DMRS ports.

As an example, the number of transmission layers of PUSCH is 3, the number of transmission layers of the first PUSCH transmission occasion is 2, and the number of transmission layers of the second PUSCH transmission occasion is 1. The DMRS port indicated by the first indication information is 0,1,6, which belongs to the same CDM group. The first order may be from small to large, and the DMRS ports corresponding to the first PUSCH transmission opportunity are DMRS ports numbered 0 and 1, and the DMRS port corresponding to the second PUSCH transmission opportunity is a DMRS port numbered 6. The first order may be from big to small, and the DMRS ports corresponding to the first PUSCH transmission opportunity are DMRS ports with numbers 1 and 6, and the DMRS port corresponding to the second PUSCH transmission opportunity is a DMRS port with number 0.

In summary, through receiving first indication information sent by network equipment, the first indication information is used for indicating a total DMRS port used for PUSCH transmission, receiving second indication information sent by the network equipment, the second indication information is used for indicating transmission layer number combination information respectively corresponding to a plurality of PUSCH transmission occasions of the PUSCH, and judging whether each DMRS port indicated by the first indication information belongs to a code division multiplexing CDM group of the same DMRS, under the condition that each DMRS port indicated by the first indication information does not belong to the same CDM group, determining a first DMRS port corresponding to the first PUSCH transmission occasion and a second DMRS port corresponding to the second PUSCH transmission occasion, wherein the first DMRS port belongs to the same CDM group, and under the condition that each DMRS port indicated by the first indication information belongs to the same CDM group, determining a first DMRS port corresponding to the first PUSCH transmission occasion and a second DMRS port corresponding to the second DMRS transmission occasion, wherein the first DMRS port is a first DMRS port corresponding to the first indication information, and the first DMRS port corresponding to the second DMRS transmission occasion is a second DMRS port corresponding to the first DMRS transmission occasion, the first DMRS port is a first DMRS port corresponding to the first DMRS port, the first DMRS port is a first DMRS port corresponding to the first DMRS transmission occasion is a first DMRS port, the DMRS port is more flexible to the first DMRS port, and the DMRS ports corresponding to the second DMRS transmission occasion is more flexible to the DMRS, and the DMRS is more flexible to the DMRS transmission port is more than the DMRS port is more flexible to the first CDM group, and the DMRS is more than the DMRS port is more transmission port is more arranged.

Referring to fig. 5, fig. 5 is a flow chart of an uplink communication method based on simultaneous transmission of multiple boards according to an embodiment of the present application. It should be noted that, the uplink communication method based on the multi-panel simultaneous transmission in the embodiment of the present application is executed by the terminal device. The method may be performed independently or in combination with any of the other embodiments of the present application. As shown in fig. 5, the method may include the steps of:

in step 501, first indication information sent by a network device is received, where the first indication information is used to indicate a total DMRS port used for PUSCH transmission.

Step 502, receiving second indication information sent by the network device, where the second indication information is used to indicate transmission layer number combination information corresponding to multiple PUSCH transmission occasions of the PUSCH.

In step 503, it is determined whether each DMRS port indicated by the first indication information belongs to the same CDM group of code division multiplexing of DMRS.

In this embodiment of the present application, step 501 and step 503 may be implemented in any manner in each embodiment of the present application, which is not limited to this embodiment, and is not described in detail.

In step 504, when the DMRS ports indicated by the first indication information do not belong to the same CDM group, a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity are determined, where the first DMRS port is a DMRS port that is adjacent to the DMRS port and is the remaining DMRS port after the numbers of the DMRS ports indicated by the first indication information are arranged according to a first order.

In this embodiment of the present application, in a case where it is determined that each DMRS port indicated by the first indication information does not belong to the same CDM group, the terminal device may allocate, according to the first order of numbers, each DMRS port indicated by the first indication information to a PUSCH transmission opportunity by ordering neighboring DMRS ports.

In step 505, when the DMRS ports indicated by the first indication information belong to the same CDM group, a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity are determined, where the first DMRS port is a DMRS port that is adjacent to the DMRS port ordered after the numbers of the DMRS ports indicated by the first indication information are arranged according to a first order, and the second DMRS port is the remaining DMRS port.

In summary, through receiving first indication information sent by network equipment, the first indication information is used for indicating a total DMRS port used for PUSCH transmission, receiving second indication information sent by the network equipment, the second indication information is used for indicating transmission layer number combination information respectively corresponding to a plurality of PUSCH transmission occasions of the PUSCH, determining whether each DMRS port indicated by the first indication information belongs to a code division multiplexing CDM group of the same DMRS, determining, under the condition that each DMRS port indicated by the first indication information does not belong to the same CDM group, a first DMRS port corresponding to the first PUSCH transmission occasion and a second DMRS port corresponding to the second PUSCH transmission occasion, wherein the first DMRS port is a first DMRS port corresponding to the first PUSCH transmission occasion, and the second DMRS port corresponding to the second PUSCH transmission occasion, the second DMRS port is a remaining DMRS port, after the number of the DMRS ports indicated by the first indication information is arranged according to a first order, the second DMRS port is ordered adjacent DMRS ports, determining whether the first DMRS ports corresponding to the first DMRS transmission occasion and the second DMRS ports corresponding to the second DMRS transmission occasion belong to the same CDM group, and the first DMRS ports corresponding to the second DMRS transmission occasion indicated by the first indication information are more flexibly arranged, and the efficiency of the DMRS ports is improved.

In this embodiment of the present application, as an example, the second indication information may indicate that the number of transmission layers of the first PUSCH transmission occasion is R1, and the number of transmission layers of the second PUSCH transmission occasion is R2. The first PUSCH transmission occasion is a transmission occasion corresponding to a first SRI domain/first TPMI domain, and the second PUSCH transmission occasion is a transmission occasion corresponding to a second SRI domain/second TPMI domain. The first PUSCH transmission occasion is transmitted in a first direction (a first TCI state and/or a direction corresponding to a first TRP) and the second PUSCH transmission occasion is transmitted in a second direction (a second TCI state and/or a direction corresponding to a second TRP).

The terminal device determines DMRS ports corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity respectively, and the terminal device may determine whether each DMRS port indicated by the first indication information belongs to the same CDM group.

When the DMRS ports indicated by the first indication information do not belong to the same CDM group, the plurality of DMRS ports may be divided according to the CDM group, R1 DMRS ports belonging to the same CDM group may be allocated to the first PUSCH transmission occasion, and R2 DMRS ports belonging to another CDM group may be allocated to the second PUSCH transmission occasion.

When the DMRS ports indicated by the first indication information do not belong to the same CDM group, the DMRS ports indicated by the first indication information may be arranged in the first order of numbers, and R1 (for example, the number may be the first R1 after the order from small to large, or the first R1 after the order from large to small) DMRS ports that are adjacent to each other are allocated to the first PUSCH transmission opportunity, and the remaining R2 DMRS ports are allocated to the second PUSCH transmission opportunity.

When the DMRS ports indicated by the first indication information belong to the same CDM group, the DMRS ports indicated by the first indication information may be arranged in the first order of numbers, R1 (for example, the first R1 after the order from small to large or the first R1 after the order from large to small) DMRS ports that are adjacent to each other are allocated to the first PUSCH transmission opportunity, and the remaining R2 DMRS ports are allocated to the second PUSCH transmission opportunity.

As another example, the second indication information may indicate that the transmission layer number of the first PUSCH transmission occasion is R1 and the transmission layer number of the second PUSCH transmission occasion is R2. The first PUSCH transmission occasion is a transmission occasion corresponding to a first SRI domain/first TPMI domain, and the second PUSCH transmission occasion is a transmission occasion corresponding to a second SRI domain/second TPMI domain. The first PUSCH transmission occasion is transmitted in a second direction (a second TCI state and/or a direction corresponding to a second TRP), and the second PUSCH transmission occasion is transmitted in a first direction (a first TCI state and/or a direction corresponding to a first TRP).

Referring to fig. 6, fig. 6 is a flow chart of an uplink communication method based on simultaneous transmission of multiple boards according to an embodiment of the present application. It should be noted that, the uplink communication method based on the multi-panel simultaneous transmission in the embodiment of the present application is executed by the network device. The method may be performed independently or in combination with any of the other embodiments of the present application. As shown in fig. 6, the method may include the steps of:

in step 601, first indication information is sent to a terminal device, where the first indication information is used to indicate a total DMRS port used for PUSCH transmission.

In the embodiment of the application, the PUSCH transmission is that the spatial multiplexing SDM multi-antenna panel based on single DCI transmits STxMP simultaneously.

Note that, in Rel 18, the SDM uplink STxMP scheme based on the S-DCI includes: different parts of one transport block TB of the PUSCH are respectively sent on the same time-frequency resource through two different TRPs respectively facing to corresponding DMRS ports or port combinations allocated on different panels, and different panels/TRP/transmission opportunities are respectively associated with different TCI states (states), i.e. beams.

Alternatively, the first indication information may be DCI.

In the embodiment of the present application, as an example, DMRS port allocation configured by different parameters under an OFDM (CP-OFDM) waveform with an uplink cyclic prefix may be shown in each table in the foregoing embodiment of the present application, which is not described herein again.

Alternatively, the first indication information may be a code point in one indication domain in the DCI, where different code points indicate different DMRS ports allocated (for example, in a case where the DMRS type is 1, the number of symbols occupied by a preamble DMRS is 1, and the number of data transmission layers is 2, the first indication information takes a value of 0 to indicate that the total DMRS ports allocated to the PUSCH are DMRS ports numbered 0 and 1, and the DMRS ports numbered 0 and 1 belong to the same CDM group, and in a case where the DMRS type is 1, the number of symbols occupied by a preamble DMRS is 1, and the number of data transmission layers is 3, the first indication information takes a value of 0 to indicate that the total DMRS ports allocated to the PUSCH are DMRS ports numbered 0,1,2, and the DMRS ports numbered 0 and 1 belong to the same CDM group, and the DMRS ports numbered 2 belong to another CDM group).

Step 602, sending second indication information to the terminal device, where the second indication information is used to indicate transmission layer number information corresponding to multiple PUSCH transmission occasions of the PUSCH.

codeword (CW);

a panel (panel);

a sounding reference signal, SRS, resource set;

SRS resource indication SRI (SRS Resource Indicator) indicates a domain;

transmitting a receiving point TRP;

indicating the TCI state of the beam.

In the embodiment of the present application, the DMRS port corresponding to each PUSCH transmission occasion is determined by the terminal device.

In summary, the first indication information is sent to the terminal device, where the first indication information is used to indicate a total demodulation reference signal DMRS port used for PUSCH transmission of a physical uplink shared channel, where the PUSCH transmission is that a spatial multiplexing SDM multi-antenna panel based on single downlink control information DCI simultaneously transmits STxMP, and the second indication information is sent to the terminal device, where the second indication information is used to indicate transmission layer RANK information corresponding to multiple PUSCH transmission occasions of the PUSCH, where the multiple PUSCH transmission occasions are transmitted in multiple transmission configuration indication TCI states and/or directions corresponding to transmission receiving points TRP, and DMRS ports used for transmission can be flexibly configured, so that transmission interference between multi-antenna panels is effectively reduced, reliability and robustness of transmission are effectively improved, and system communication efficiency is improved.

Corresponding to the uplink communication method based on the multi-panel simultaneous transmission provided by the above several embodiments, the present application further provides an uplink communication device based on the multi-panel simultaneous transmission, and since the uplink communication device based on the multi-panel simultaneous transmission provided by the embodiment of the present application corresponds to the method provided by the above several embodiments, implementation of the uplink communication method based on the multi-panel simultaneous transmission is also applicable to the uplink communication device based on the multi-panel simultaneous transmission provided by the following embodiments, which are not described in detail in the following embodiments.

Referring to fig. 7, fig. 7 is a schematic structural diagram of an uplink communication device based on simultaneous transmission of multiple boards according to an embodiment of the present application.

As shown in fig. 7, the uplink communication device 700 based on multi-panel simultaneous transmission includes: a transceiver unit 710 and a processing unit 720, wherein:

a transceiver unit 710, configured to receive first indication information sent by a network device, where the first indication information is used to indicate a DMRS port of a total demodulation reference signal used for PUSCH transmission of a physical uplink shared channel, where the PUSCH transmission is STxMP simultaneous transmission by a spatial multiplexing SDM multi-antenna panel based on single downlink control information DCI;

The transceiver unit 710 is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate transmission layer RANK information corresponding to a plurality of PUSCH transmission occasions of the PUSCH, where the plurality of PUSCH transmission occasions are transmitted in a direction corresponding to a plurality of transmission configuration indication TCI states and/or transmission reception points TRP;

and a processing unit 720, configured to determine the DMRS port corresponding to each PUSCH transmission occasion.

Optionally, the PUSCH transmission occasion has a correspondence with at least one of the following:

a codeword;

a panel;

sounding reference signal SRS resource set;

SRS resource indication SRI indication field;

transmitting a precoding matrix indicator (TPMI) indication field;

transmitting a receiving point TRP;

indicating the TCI state of the beam.

Optionally, the number of transmission layers of the PUSCH transmission opportunity corresponding to the first SRI indication domain or the first TPMI indication domain is R1, the number of transmission layers of the PUSCH transmission opportunity corresponding to the second SRI indication domain or the second TPMI indication domain is R2, and the second indication information is used to indicate the R1 and R2.

Optionally, the second indication information is used to indicate the combined information of the transmission layers R1 and R2.

Optionally, correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is predefined; or, the correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is indicated by an indication domain indicated by the SRS resource set.

Optionally, the correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is:

Optionally, the first code point included in the indication field indicated by the SRS resource set is used to indicate the combined information with the number of transmission layers { R1, R2}, where the PUSCH transmission opportunity with the number of transmission layers R1 is transmitted in a first direction, and the PUSCH transmission opportunity with the number of transmission layers R2 is transmitted in a second direction;

Optionally, the number of transmission layers of the PUSCH is at most 4.

Optionally, the processing unit 720 is specifically configured to:

and under the condition that the DMRS ports indicated by the first indication information do not belong to the same CDM group, determining a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission opportunity, the first DMRS port belongs to the same CDM group, and the second DMRS port belongs to another CDM group.

Optionally, the processing unit 720 is specifically configured to:

and under the condition that the DMRS ports indicated by the first indication information do not belong to the same CDM group, determining a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH, and the first DMRS port is the DMRS port which is adjacent to the DMRS port after the numbers of the DMRS ports indicated by the first indication information are arranged according to a first sequence, and the second DMRS port is the rest DMRS port.

Optionally, the processing unit 720 is specifically configured to:

and under the condition that all the DMRS ports indicated by the first indication information belong to the same CDM group, determining a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission opportunity, and the first DMRS port is formed by arranging the numbers of the DMRS ports indicated by the first indication information according to a first sequence, and then sequencing adjacent DMRS ports, wherein the second DMRS port is the rest DMRS port.

The uplink communication device based on multi-panel simultaneous transmission in this embodiment may receive, by receiving first indication information sent by a network device, where the first indication information is used to indicate a DMRS port of a total demodulation reference signal used for PUSCH transmission of a physical uplink shared channel, where the PUSCH transmission is spatial multiplexing SDM multi-antenna panel simultaneous transmission STxMP based on single downlink control information DCI, receive second indication information sent by the network device, where the second indication information is used to indicate transmission layer number RANK information corresponding to multiple PUSCH transmission occasions of the PUSCH, where the multiple PUSCH transmission occasions are transmitted in directions corresponding to multiple transmission configuration indication TCI states and/or transmission reception points TRP, determine the DMRS port corresponding to each PUSCH transmission occasion, and can flexibly configure the DMRS port used for transmission, effectively reduce transmission interference between the multi-antenna panels, effectively improve reliability and robustness of transmission, and improve communication efficiency of the system.

Referring to fig. 8, fig. 8 is a schematic structural diagram of an uplink communication device based on simultaneous transmission of multiple boards according to an embodiment of the present application.

As shown in fig. 8, the uplink communication device 800 based on multi-panel simultaneous transmission includes: a transceiver unit 810, wherein:

a transceiver 810, configured to send first indication information to a terminal device, where the first indication information is used to indicate a DMRS port of a total demodulation reference signal used for PUSCH transmission of a physical uplink shared channel, where the PUSCH transmission is STxMP simultaneous transmission by a spatial multiplexing SDM multi-antenna panel based on single downlink control information DCI;

the transceiver 810 is further configured to send second indication information to the terminal device, where the second indication information is used to indicate transmission layer RANK information corresponding to a plurality of PUSCH transmission occasions of the PUSCH, where the plurality of PUSCH transmission occasions are transmitted in a direction corresponding to a plurality of transmission configuration indication TCI states and/or transmission receiving points TRP.

a codeword;

a panel;

sounding reference signal SRS resource set;

SRS resource indication SRI indication field;

transmitting a precoding matrix indicator (TPMI) indication field;

Transmitting a receiving point TRP;

indicating the TCI state of the beam.

Optionally, the first code point included in the SRS resource set indication domain is used for indicating the combined information with the number of transmission layers { R1, R2}, where the PUSCH transmission opportunity with the number of transmission layers R1 is transmitted in a first direction, and the PUSCH transmission opportunity with the number of transmission layers R2 is transmitted in a second direction;

the second code point included in the SRS resource set indication domain is used for indicating the combined information of the transmission layer number { R2, R1}, where the PUSCH transmission opportunity with the transmission layer number R2 is transmitted in the first direction, and the PUSCH transmission opportunity with the transmission layer number R1 is transmitted in the second direction;

Optionally, the number of transmission layers of the PUSCH is at most 4.

Optionally, when the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first PUSCH transmission opportunity corresponds to a first DMRS port, and the second PUSCH transmission opportunity corresponds to a second DMRS port, where the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission opportunity, and the first DMRS port belongs to the same CDM group, and the second DMRS port belongs to another CDM group.

Optionally, under the condition that each DMRS port indicated by the first indication information does not belong to the same CDM group, the first PUSCH transmission opportunity corresponds to a first DMRS port, the second PUSCH transmission opportunity corresponds to a second DMRS port, where the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH, and the first DMRS port ranks adjacent DMRS ports after the numbers of the DMRS ports indicated by the first indication information are ranked according to a first order, and the second DMRS port is the remaining DMRS port.

Optionally, under the condition that each DMRS port indicated by the first indication information belongs to the same CDM group, a first PUSCH transmission opportunity corresponds to a first DMRS port, a second PUSCH transmission opportunity corresponds to a second DMRS port, where the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission opportunity, and the first DMRS port is the DMRS port that sequences adjacent DMRS ports after the numbers of the DMRS ports indicated by the first indication information are arranged according to a first order, and the second DMRS port is the remaining DMRS port.

The uplink communication device based on multi-panel simultaneous transmission in this embodiment may send, to a terminal device, first indication information, where the first indication information is used to indicate a DMRS port of a total demodulation reference signal used for physical uplink shared channel PUSCH transmission, where the PUSCH transmission is spatial multiplexing SDM multi-antenna panel simultaneous transmission STxMP based on single downlink control information DCI, and send, to the terminal device, second indication information, where the second indication information is used to indicate transmission layer number RANK combination information corresponding to multiple PUSCH transmission occasions of the PUSCH, where the multiple PUSCH transmission occasions are transmitted in a direction corresponding to multiple transmission configuration indication TCI states and/or transmission reception points TRP, and DMRS ports corresponding to the PUSCH transmission occasions are determined by the terminal device based on a first rule, which can flexibly configure DMRS ports used for transmission, effectively reduce transmission interference between multiple antenna panels, effectively improve reliability and robustness of transmission, and improve system communication efficiency.

In order to achieve the foregoing embodiments, embodiments of the present application further provide a communication device, including: a processor and a memory in which a computer program is stored, the processor executing the computer program stored in the memory to cause the apparatus to perform the method shown in the embodiments of fig. 2 to 5.

In order to achieve the foregoing embodiments, embodiments of the present application further provide a communication device, including: a processor and a memory in which a computer program is stored, the processor executing the computer program stored in the memory to cause the apparatus to perform the method shown in the embodiment of fig. 6.

In order to achieve the foregoing embodiments, embodiments of the present application further provide a communication device, including: a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor for executing the code instructions to perform the methods illustrated in the embodiments of fig. 2-5.

In order to achieve the foregoing embodiments, embodiments of the present application further provide a communication device, including: a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor for executing the code instructions to perform the method shown in the embodiment of fig. 6.

Referring to fig. 9, fig. 9 is a schematic structural diagram of another uplink communication device based on simultaneous transmission of multiple boards according to an embodiment of the disclosure. The uplink communication device 900 based on the simultaneous transmission of multiple planes may be a network device, or may be a terminal device, or may be a chip, a chip system, or a processor, etc. supporting the network device to implement the above method, or may be a chip, a chip system, or a processor supporting the terminal device to implement the above method. The device can be used for realizing the method described in the method embodiment, and can be particularly referred to the description in the method embodiment.

The multi-panel simultaneous transmission based upstream communication device 900 may include one or more processors 901. The processor 901 may be a general purpose processor or a special purpose processor, etc. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control uplink communication devices (e.g., base station, baseband chip, terminal device chip, DU or CU, etc.) based on simultaneous transmission of multiple planes, execute a computer program, and process data of the computer program.

Optionally, the uplink communication device 900 based on the simultaneous transmission of multiple planes may further include one or more memories 902, on which a computer program 903 may be stored, and the processor 901 executes the computer program 903, so that the uplink communication device 900 based on the simultaneous transmission of multiple planes performs the method described in the foregoing method embodiment. The computer program 903 may be solidified in the processor 901, in which case the processor 901 may be implemented in hardware.

Optionally, the memory 902 may also have data stored therein. The uplink communication device 900 and the memory 902 based on the simultaneous transmission of multiple boards may be separately provided or may be integrated together.

Optionally, the uplink communication device 900 based on multi-panel simultaneous transmission may further include a transceiver 905 and an antenna 906. The transceiver 905 may be referred to as a transceiver unit, transceiver circuitry, or the like, for implementing a transceiver function. The transceiver 905 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function, and a transmitter; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

Optionally, one or more interface circuits 907 may be included in the uplink communication device 900 based on multi-panel simultaneous transmission. The interface circuit 907 is used to receive code instructions and transmit them to the processor 901. The processor 901 executes code instructions to cause the multi-panel simultaneous transmission based upstream communication device 900 to perform the method described in the method embodiments described above.

In one implementation, a transceiver for implementing the receive and transmit functions may be included in processor 901. For example, the transceiver may be a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.

In one implementation, the uplink communication device 900 based on multi-panel simultaneous transmission may include a circuit, where the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiment. The processors and transceivers described in this disclosure may be implemented on integrated circuits (integrated circuit, ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (application specific integrated circuit, ASIC), printed circuit boards (printed circuit board, PCB), electronic devices, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The uplink communication apparatus based on the multi-plane simultaneous transmission in the above embodiment description may be a network device or a terminal device, but the range of the uplink communication apparatus based on the multi-plane simultaneous transmission described in the present disclosure is not limited thereto, and the structure of the uplink communication apparatus based on the multi-plane simultaneous transmission may not be limited by fig. 7 to 8. The uplink communication means based on simultaneous transmission of multiple planes may be a stand-alone device or may be part of a larger device. For example, the uplink communication device based on the simultaneous transmission of multiple boards may be:

(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;

(2) A set of one or more ICs, optionally including storage means for storing data, a computer program;

(3) An ASIC, such as a Modem (Modem);

(4) Modules that may be embedded within other devices;

(5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like;

(6) Others, and so on.

For the case that the uplink communication device based on the simultaneous transmission of multiple boards may be a chip or a chip system, reference may be made to the schematic structural diagram of the chip shown in fig. 10. The chip shown in fig. 10 includes a processor 1001 and an interface 1002. Wherein the number of processors 1001 may be one or more, and the number of interfaces 1002 may be a plurality.

For the case where the chip is used to implement the functions of the terminal device in the embodiments of the present disclosure:

an interface 1002 for code instructions and transmitting to the processor;

a processor 1001 for executing code instructions to perform the methods of fig. 2-8.

For the case where the chip is used to implement the functions of the network device in the embodiments of the present disclosure:

an interface 1002 for code instructions and transmitting to the processor;

a processor 1001 for executing code instructions to perform the method of fig. 9.

Optionally, the chip further comprises a memory 1003, the memory 1003 being used for storing the necessary computer programs and data.

Those of skill in the art will further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (step) described in connection with the embodiments of the disclosure may be implemented by electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the functionality in a variety of ways for each particular application, but such implementation should not be construed as beyond the scope of the embodiments of the present disclosure.

The embodiment of the disclosure also provides a communication system, which comprises the uplink communication device based on the multi-panel simultaneous transmission as the terminal device and the uplink communication device based on the multi-panel simultaneous transmission as the network device in the embodiment of fig. 7-8, or comprises the uplink communication device based on the multi-panel simultaneous transmission as the terminal device and the uplink communication device based on the multi-panel simultaneous transmission as the network device in the embodiment of fig. 9.

The present disclosure also provides a readable storage medium having instructions stored thereon which, when executed by a computer, perform the functions of any of the method embodiments described above.

The present disclosure also provides a computer program product which, when executed by a computer, performs the functions of any of the method embodiments described above.

In the above embodiments, it may be implemented in whole or in part by 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 comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions in accordance with embodiments of the present disclosure are produced 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 program may be stored in or transmitted from one computer readable storage medium to another, for example, a website, computer, server, or data center via a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) connection. Computer readable storage media can be any available media that can be accessed by a computer or data storage devices, such as servers, data centers, etc., that contain 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 high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that: the various numbers of first, second, etc. referred to in this disclosure are merely for ease of description and are not intended to limit the scope of embodiments of this disclosure, nor to indicate sequencing.

At least one of the present disclosure may also be described as one or more, a plurality may be two, three, four or more, and the present disclosure is not limited. In the embodiment of the disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.

The correspondence relationships shown in the tables in the present disclosure may be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, and the present disclosure is not limited thereto. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table in the present disclosure, the correspondence shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Predefined in this disclosure may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-sintering.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the embodiments of the present disclosure may be performed in parallel, sequentially, or in a different order, so long as the desired result of the technical solution of the present disclosure is achieved, and the present disclosure is not limited herein.

The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. An uplink communication method based on simultaneous transmission of multiple boards, wherein the method is performed by a terminal device, the method comprising:

2. The method of claim 1, wherein the PUSCH transmission occasion has a correspondence with at least one of:

a codeword;

a panel;

sounding reference signal SRS resource set;

SRS resource indication SRI indication field;

transmitting a precoding matrix indicator (TPMI) indication field;

transmitting a receiving point TRP;

indicating the TCI state of the beam.

3. The method of claim 2, wherein a transmission layer number of PUSCH transmission occasions corresponding to a first SRI indication field or a first TPMI indication field is R1, a transmission layer number of PUSCH transmission occasions corresponding to a second SRI indication field or a second TPMI indication field is R2, and the second indication information is used to indicate the R1 and R2.

4. A method according to claim 3, characterized in that the second indication information is used for indicating the combined information of the number of transmission layers R1 and R2.

5. The method of claim 3, wherein correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is predefined; or, the correspondence between the plurality of PUSCH transmission opportunities and the SRI domain or the TPMI domain is indicated by an indication domain indicated by an SRS resource set.

6. The method of claim 5, wherein correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is:

the first direction is a direction corresponding to a first TCI state and/or a first TRP, and the second direction is a direction corresponding to a second TCI state and/or a second TRP.

7. The method of claim 5, wherein correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is:

8. The method according to any one of claims 3 to 5, wherein,

The first code point included in the indication domain indicated by the SRS resource set is used for indicating the combined information of the transmission layer number { R1, R2}, where the PUSCH transmission opportunity with the transmission layer number R1 is transmitted in a first direction, and the PUSCH transmission opportunity with the transmission layer number R2 is transmitted in a second direction;

the second code point included in the indication domain indicated by the SRS resource set is used for indicating the combined information of the transmission layer number { R2, R1}, where the PUSCH transmission opportunity with the transmission layer number R2 is transmitted in the first direction, and the PUSCH transmission opportunity with the transmission layer number R1 is transmitted in the second direction;

9. The method according to any of claims 1-8, wherein the number of transmission layers of PUSCH is at most 4.

10. The method of claim 9, wherein the determining the DMRS port corresponding to each PUSCH transmission occasion comprises:

and under the condition that all the DMRS ports indicated by the first indication information do not belong to the same CDM group, determining a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission opportunity, the first DMRS port belongs to the same CDM group, and the second DMRS port belongs to another CDM group.

11. The method of claim 9, wherein the determining the DMRS port corresponding to each PUSCH transmission occasion comprises:

and under the condition that the DMRS ports indicated by the first indication information do not belong to the same CDM group, determining a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH, and the first DMRS port is to sort adjacent DMRS ports after the numbers of the DMRS ports indicated by the first indication information are arranged according to a first sequence, and the second DMRS port is the rest DMRS port.

12. The method of claim 9, wherein the determining the DMRS port corresponding to each PUSCH transmission occasion comprises:

and under the condition that all the DMRS ports indicated by the first indication information belong to the same CDM group, determining a first DMRS port corresponding to a first PUSCH transmission opportunity and a second DMRS port corresponding to a second PUSCH transmission opportunity, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission opportunity, and the first DMRS ports are adjacent DMRS ports in sequence after the numbers of the DMRS ports indicated by the first indication information are arranged according to a first sequence, and the second DMRS ports are the rest DMRS ports.

13. An uplink communication method based on simultaneous transmission of multiple boards, wherein the method is performed by a network device, the method comprising:

14. The method of claim 13, wherein the PUSCH transmission occasion has a correspondence with at least one of:

a codeword;

a panel;

sounding reference signal SRS resource set;

SRS resource indication SRI indication field;

transmitting a precoding matrix indicator (TPMI) indication field;

transmitting a receiving point TRP;

indicating the TCI state of the beam.

15. The method of claim 14, wherein a transmission layer number of PUSCH transmission occasions corresponding to a first SRI indication field or a first TPMI indication field is R1, a transmission layer number of PUSCH transmission occasions corresponding to a second SRI indication field or a second TPMI indication field is R2, and the second indication information is used to indicate the R1 and R2.

16. The method according to claim 15, wherein the second indication information is used to indicate combined information of the transmission layers R1 and R2.

17. The method of claim 15, wherein correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is predefined; or, the correspondence between the plurality of PUSCH transmission opportunities and the SRI domain or the TPMI domain is indicated by an indication domain indicated by an SRS resource set.

18. The method of claim 17, wherein correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is:

19. The method of claim 17, wherein correspondence between the plurality of PUSCH transmission occasions and the SRI domain or the TPMI domain is:

20. The method according to any one of claims 15 to 17, wherein,

the SRS resource set indication domain includes a first code point for indicating the combined information with the number of transmission layers { R1, R2}, where PUSCH transmission opportunity with the number of transmission layers R1 is transmitted in a first direction, and PUSCH transmission opportunity with the number of transmission layers R2 is transmitted in a second direction;

the SRS resource set indication domain includes a second code point for indicating the combined information with the number of transmission layers { R2, R1}, where PUSCH transmission opportunity with the number of transmission layers R2 is transmitted in a first direction, and PUSCH transmission opportunity with the number of transmission layers R1 is transmitted in a second direction;

21. The method according to any of claims 13-20, wherein the number of transmission layers of PUSCH is at most 4.

22. The method of claim 21, wherein the step of determining the position of the probe is performed,

under the condition that the DMRS ports indicated by the first indication information do not belong to the same CDM group, a first PUSCH transmission opportunity corresponds to a first DMRS port, a second PUSCH transmission opportunity corresponds to a second DMRS port, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission opportunity, the first DMRS port belongs to the same CDM group, and the second DMRS port belongs to another CDM group.

23. The method of claim 21, wherein the step of determining the position of the probe is performed,

and under the condition that the DMRS ports indicated by the first indication information do not belong to the same CDM group, the first PUSCH transmission opportunity corresponds to a first DMRS port, the second PUSCH transmission opportunity corresponds to a second DMRS port, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH, the first DMRS port is the DMRS ports adjacent to each other in sequence after the numbers of the DMRS ports indicated by the first indication information are arranged according to a first sequence, and the second DMRS port is the remaining DMRS port.

24. The method of claim 21, wherein the step of determining the position of the probe is performed,

under the condition that all the DMRS ports indicated by the first indication information belong to the same CDM group, a first PUSCH transmission opportunity corresponds to a first DMRS port, a second PUSCH transmission opportunity corresponds to a second DMRS port, wherein the number of ports of the first DMRS port is equal to the number of transmission layers corresponding to the first PUSCH transmission opportunity, the number of ports of the second DMRS port is equal to the number of transmission layers corresponding to the second PUSCH transmission opportunity, the first DMRS port is the DMRS ports adjacent to each other in sequence after the numbers of the DMRS ports indicated by the first indication information are arranged according to a first sequence, and the second DMRS port is the remaining DMRS port.

25. An uplink communication device based on simultaneous transmission of multiple boards, wherein the device is applied to a terminal device for execution, and the device comprises:

26. An uplink communication device based on simultaneous transmission of multiple boards, wherein the device is applied to a network device, and the device comprises:

27. A communication device, characterized in that the device comprises a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method of any one of claims 1 to 12 or to perform the method of any one of claims 13 to 24.

28. A communication device, comprising: a processor and interface circuit;

the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor being configured to execute the code instructions to perform the method of any one of claims 1 to 12 or to perform the method of any one of claims 13 to 24.

29. A computer readable storage medium storing instructions which, when executed, cause the method of any one of claims 1 to 12 to be implemented or cause the method of any one of claims 13 to 24 to be implemented.