CN115134055A

CN115134055A - Indicating method and related product

Info

Publication number: CN115134055A
Application number: CN202110352985.4A
Authority: CN
Inventors: 王化磊
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-31
Publication date: 2022-09-30
Also published as: WO2022199346A1

Abstract

The embodiment of the application discloses an indication method and a related product, wherein the method comprises the following steps: the terminal equipment receives first information sent by the network equipment, wherein the first information is used for indicating the terminal equipment to transmit to a single TRP or the terminal equipment to transmit to a plurality of TRPs, so that the terminal equipment can determine whether to transmit to the single TRP or the plurality of TRPs according to the first information, and a technical scheme for supporting dynamic switching of the terminal equipment to the single TRP and the plurality of TRP is provided.

Description

Indicating method and related product

Technical Field

The present application relates to the field of communications technologies, and in particular, to an indication method and a related product.

Background

Currently, NR protocol version 17(Release17, R17) is currently standardized to support Uplink Transmission (e.g., Physical Uplink Shared Channel (PUSCH)) for multiple Transmission and Reception Points (TRPs), but there is no specific scheme for how to support dynamic switching between Transmission PUSCH for a single TRP and Transmission PUSCH for multiple TRPs.

Disclosure of Invention

The embodiment of the application provides an indication method and a related product, and provides a technical scheme for supporting dynamic switching of terminal equipment to single TRP transmission and multiple TRP transmissions.

In a first aspect, an embodiment of the present application provides an indication method, which is applied to a terminal device, and the method includes:

receiving first information, wherein the first information is used for indicating the terminal equipment to transmit to a single TRP or the terminal equipment to transmit to a plurality of TRPs.

In a second aspect, an embodiment of the present application provides an indication method, which is applied to a network device, and the method includes:

and sending first information, wherein the first information is used for indicating a terminal device to transmit to a single TRP or indicating the terminal device to transmit to a plurality of TRPs.

In a third aspect, an indication apparatus provided in an embodiment of the present application is applied to a terminal device, and the apparatus includes:

a transceiver unit, configured to receive first information, where the first information is used to instruct the terminal device to transmit to a single TRP or instruct the terminal device to transmit to multiple TRPs.

In a fourth aspect, an indication apparatus provided in an embodiment of the present application is applied to a network device, and the apparatus includes:

the terminal equipment comprises a receiving and sending unit, a processing unit and a processing unit, wherein the receiving and sending unit is used for sending first information, and the first information is used for indicating the terminal equipment to transmit to a single TRP or indicating the terminal equipment to transmit to a plurality of TRPs.

In a fifth aspect, an embodiment of the present application provides a chip, where the chip is configured to acquire first information, where the first information is used to instruct a terminal device to transmit to a single TRP or instruct the terminal device to transmit to multiple TRPs.

In a sixth aspect, an embodiment of the present application provides a chip module, which includes a transceiving component and a chip, where the chip is configured to receive first information through the transceiving component, where the first information is used to instruct a terminal device to transmit to a single TRP or instruct the terminal device to transmit to multiple TRPs.

In a seventh aspect, an embodiment of the present application provides a chip, where the chip is configured to output first information, where the first information is used to instruct a terminal device to transmit to a single TRP or instruct the terminal device to transmit to multiple TRPs.

In an eighth aspect, an embodiment of the present application provides a chip module, which includes a transceiver component and a chip, where the chip is configured to send first information through the transceiver component, where the first information is used to instruct a terminal device to transmit to a single TRP or instruct the terminal device to transmit to multiple TRPs.

In a ninth aspect, embodiments of the present application provide an electronic device, including a processor, a memory, a communication interface, and one or more programs, stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the methods of the first and second aspects.

In a tenth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the steps of the method according to any one of the first aspect or the second aspect.

In an eleventh aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in the first and second aspects of the embodiments of the present application. The computer program product may be a software installation package.

According to the technical scheme provided by the application, the terminal equipment receives first information sent by the network equipment, and the first information is used for indicating the terminal equipment to transmit to a single TRP or the terminal equipment to transmit to a plurality of TRPs, so that the terminal equipment can determine whether to transmit to the single TRP or to the plurality of TRPs according to the first information, and the technical scheme supporting the dynamic switching of the terminal equipment to the single TRP and the plurality of TRPs is provided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

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

fig. 2 is a schematic flowchart of an indication method provided in an embodiment of the present application;

FIG. 3 is a block diagram illustrating functional units of an indicating apparatus according to an embodiment of the present disclosure;

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

Detailed Description

The embodiments of the present application will be described below with reference to the drawings.

Fig. 1 is a schematic diagram illustrating an architecture of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system includes a network device and a terminal device. The network device and the terminal device are connected through wireless communication, the network device may include a plurality of Transmission Reception Points (TRPs), each of the TRPs may communicate with the terminal device, and the terminal device may simultaneously communicate with the plurality of TRPs.

The communication system includes but is not limited to: a Long Term Evolution (LTE) system, a 5G communication system (e.g., New Radio, NR)), a communication system with a converged multiple communication technologies (e.g., a communication system with a converged LTE technology and NR technology), or a communication system suitable for future New various communication systems, such as a 6G communication system and a 7G communication system, which is not limited in this embodiment of the present invention. The technical solution of the embodiment of the present application is also applicable to different network architectures, including but not limited to a relay network architecture, a dual link architecture, a Vehicle-to-any-object communication (Vehicle-to-event) architecture, and the like. The network device may be an Access network device, such as an eNodeB, an NR base station, or an Access Point (AP), and the Access network device may be connected to a core network element through a wired connection or a wireless connection.

The terminal device in the embodiment of the present application is a device having a wireless communication function, and may be referred to as a terminal (terminal), a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus. The terminal device may be fixed or mobile. It should be noted that the terminal device may support at least one wireless communication technology, such as LTE, New Radio (NR), Wideband Code Division Multiple Access (WCDMA), and the like. For example, the terminal device may be a mobile phone (mobile phone), a tablet (pad), a desktop, a notebook, a kiosk, a vehicle-mounted terminal, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving, a wireless terminal in remote surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in city (PDA) a wireless terminal in smart home, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (PDA) a wireless local area, a wireless personal digital assistant (wldi), a handheld wireless terminal with personal communication function, and a wireless terminal with personal communication function, A computing device or other processing device connected to a wireless modem, a wearable device, a terminal device in a future mobile communication network or a terminal device in a future evolved public mobile land network (PLMN), etc. In some embodiments of the present application, the terminal device may also be an apparatus with a transceiving function, such as a system on chip. The chip system may include a chip and may also include other discrete devices.

In this embodiment, the network device is a device that provides a wireless communication function for the terminal device, and may also be referred to as a Radio Access Network (RAN) device or an access network element. Wherein the access network device may support at least one wireless communication technology, such as LTE, NR, etc. By way of example, access network devices include, but are not limited to: a next generation base station (generation node B, gNB), an evolved node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved node B or home node B, HNB), a Base Band Unit (BBU), a transmission point (TRP), a Transmission Point (TP), a mobile switching center (mobile switching center), and the like in a fifth generation mobile communication system (5th-generation, 5G). The network device may also be a wireless controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in a Cloud Radio Access Network (CRAN) scenario, or the access network device may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and an access network device in future mobile communication or an access network device in a PLMN for future evolution, and the like. In some embodiments, the access network device may also be an apparatus, such as a system-on-a-chip, that provides wireless communication functionality for the end device. By way of example, a system of chips may include a chip and may also include other discrete devices.

It should be noted that the form and number of the network devices and the terminal devices shown in fig. 1 are only for example and do not constitute a limitation to the embodiments of the present application.

In the embodiment of the present application, a unidirectional communication link from a network device to a terminal device is defined as a Downlink (DL), data transmitted on the Downlink is Downlink data, and a transmission direction of the Downlink data is referred to as a Downlink direction; and the unidirectional communication link from the terminal device to the network device is Uplink (UL), the data transmitted on the Uplink is Uplink data, and the transmission direction of the Uplink data is referred to as Uplink direction.

It is to be understood that reference to "at least one" in the embodiments of the present application means one or more, and "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

And, unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first information and the second information are different information only for distinguishing them from each other, and do not indicate a difference in the contents, priority, transmission order, importance, or the like of the two kinds of information.

The expression "network" and "system" appearing in the embodiments of the present disclosure are the same concept, and the communication system is a communication network. The term "connected" in the embodiments of the present disclosure refers to various connection manners, such as direct connection or indirect connection, for example, different devices are connected through a communication interface, and is not limited at all.

The indication method of the embodiment of the present application is described with reference to the communication system shown in fig. 1.

Referring to fig. 2, fig. 2 is a schematic flow chart of an indicating method according to an embodiment of the present application, which includes the following steps.

S210, the network equipment sends first information to the terminal equipment, wherein the first information is used for indicating the terminal equipment to transmit to a single TRP or the terminal equipment to transmit to a plurality of TRPs.

The terminal device can communicate with a single TRP or a plurality of TRPs. The network device may indicate whether the terminal device is directed to a single TRP transmission or to multiple TRP transmissions by sending the first information to the terminal device, so that the terminal device may support dynamic switching between the single TRP transmission and the multiple TRP transmissions.

Optionally, the first information is DCI or a higher layer signaling.

The network device may configure the first information in advance through a higher layer parameter, for example, the first information may be configured through Radio Resource Control (RRC). Of course, the network device may also indicate the first information through information in DCI (Downlink control information), and the disclosure is not limited thereto.

S220, the terminal equipment receives the first information.

In the embodiment of the application, the terminal equipment can send related channels and/or information to a single TRP or a plurality of TRPs according to the indication of the first information.

Optionally, the transmission mode of the terminal device is PUSCH transmission based on a codebook.

In a codebook-based transmission mode of uplink transmission, a terminal device sends an SRS on a plurality of SRS resources, the SRS on each SRS resource adopts different beams, a network device selects the SRS resource from the SRS resources for obtaining uplink Channel State Information (CSI), and indicates the terminal device through a sounding reference Signal Resource Indicator (SRI) and corresponding precoding information and layer number, so that the terminal device determines the precoding information and the uplink precoding matrix and layer number corresponding to the layer number from a codebook according to the SRI and the precoding information and the layer number, and performs beamforming on uplink data by using the beams corresponding to the SRS resources. That is, for codebook-based transmission, the network device may provide the terminal device with precoding information and the number of layers, from which the terminal device selects the precoding for PUSCH transmission.

Optionally, the transmission mode of the terminal device is a non-codebook-based PUSCH transmission.

For non-codebook based uplink PUSCH transmission, the network device may send the selected one or more SRS resources to the terminal device, and may indicate a precoder for PUSCH transmission through the SRI.

In the embodiment of the present application, one SRI or Transmission Configuration Indication (TCI) may be associated with one TRP, and if one SRI/TCI is valid, it indicates that the terminal device may transmit to the TRP associated with the SRI/TCI; and if the SRI/TCI is invalid, indicating that the terminal equipment cannot transmit to the TRP associated with the SRI/TCI. For example, if the first SRI/TCI corresponds to TRP1 and the second SRI/TCI corresponds to TRP2, when the first SRI/TCI is valid and the second SRI/TCI is invalid, the terminal device only transmits to TRP 1; when the first SRI/TCI and the second SRI/TCI are both valid, the terminal equipment can transmit to the TRP1 and the TRP 2.

Exemplarily, one SRI/TCI may also be associated with a plurality of TRPs, and if one SRI/TCI is valid, the terminal device may transmit to the plurality of TRPs associated with the SRI/TCI; and if the SRI/TCI is invalid, the terminal equipment cannot transmit to the plurality of TRPs associated with the SRI/TCI.

Each value of the SRI/TCI may represent one or more SRS resources, and SRS resources represented by different values are different. According to the value of the SRI/TCI, the terminal equipment can determine a precoder, an antenna port, TRP and the like for transmitting the PUSCH. Illustratively, the terminal device may pre-store a mapping table of SRI/TCI, where a value of each SRI/TCI corresponds to an index of an SRS resource, a TRP, a precoding matrix, an antenna port, and the like.

For example, for PUSCH transmission based on a codebook, one SRI/TCI may further associate one Precoding information and number of layers (layers), and if one SRI/TCI is valid and/or the SRI/TCI-associated Precoding information and number of layers are valid, the terminal device may use the SRI/TCI-associated Precoding information and the number of layers corresponding to the precoder to transmit to the SRI/TCI-associated TRP; and if the SRI/TCI is invalid and/or the precoding information and the number of layers associated with the SRI/TCI are invalid, the terminal equipment does not transmit towards the TRP associated with the SRI/TCI.

Specifically, for PUSCH transmission based on a codebook, if one SRI/TCI is valid, the terminal device may transmit the SRI/TCI and/or the precoding information associated therewith and the TRP corresponding to the number of layers; or if the precoding information and the number of layers associated with the SRI/TCI are valid, the terminal device may transmit to the SRI/TCI and/or the TRP corresponding to the precoding information and the number of layers associated therewith; or if the SRI/TCI, and the precoding information and the number of layers associated with the SRI/TCI are both valid, the terminal device may transmit to the SRI/TCI and/or the TRP corresponding to the precoding information and the number of layers associated with the SRI/TCI. Further, if any one of the SRI/TCI, the precoding information associated with the SRI/TCI, and the number of layers is invalid, the terminal device does not transmit to the SRI/TCI and/or the TRP corresponding to the precoding information and the number of layers associated therewith.

It should be noted that a TRP in the present application may be associated with or characterized by spatial information or null directions (e.g., one or a set of beams). In addition, the TRP in the present application may be a functional module (for example, implemented by software functions), or may be implemented by hardware, and the present application does not limit the implementation manner of the TRP.

Optionally, when the SRI/TCI is valid, the precoding information and the number of layers associated with the SRI/TCI are also valid, or when the precoding information and the number of layers are valid, the SRI/TCI associated with the precoding information and the number of layers are also valid.

Specifically, if one SRI/TCI, one precoding and layer number correspond to the same TRP information, if the SRI/TCI is valid, the precoding information and the layer number are also valid. Similarly, if the precoding and layer number are valid, the SRI/TCI is also valid.

The implementation of the present application is described in detail below in the case that the DCI or the high-layer signaling includes at least one SRI/TCI, and in the case that the DCI or the high-layer signaling includes at least one piece of precoding information and the number of layers, respectively.

In the present application, the DCI or the higher layer signaling includes two SRI/TCIs, where the first SRI/TCI is a second SRI/TCI field, the second SRI/TCI field corresponds to TRP2, the second SRI/TCI is a first SRI/TCI field, and the first SRI/TCI field corresponds to TRP 1.

In this application, it is described that DCI or a high layer signaling includes two pieces of precoding information and a number of layers, where the first piece of precoding information and the number of layers are a second piece of precoding information and a number of layers field, the second piece of precoding information and the number of layers field correspond to TRP2, the second piece of precoding information and the number of layers are a first piece of precoding information and a number of layers field, and the first piece of precoding information and the number of layers field correspond to TRP 1.

Example one

For uplink PUSCH transmission based on a codebook, the DCI or the high-layer signaling comprises at least one SRS resource indication or transmission configuration indication (SRI/TCI), and the at least one SRI/TCI comprises a first SRI/TCI and a second SRI/TCI.

Optionally, the DCI or the higher layer signaling includes a first bit, where the first bit is used to indicate whether the first SRI/TCI and/or the second SRI/TCI are valid.

The first bit may be 1bit, 2bit, 3bit, and the like, and the network device may determine the number of bits occupied by the first bit according to the number of SRI/TCIs, for example, when the DCI or the high-level signaling includes two SRI/TCIs, the network device may indicate, through the 1bit in the DCI or the high-level signaling, whether the first SRI/TCI and the precoding information and the number of layers associated with the first SRI/TCI are valid, or whether the second SRI/TCI and the precoding information and the number of layers associated with the second SRI/TCI are valid. For another example, when the DCI or the higher layer signaling includes two SRI/TCIs, the network device may indicate, through one bit of the 2 bits, whether the first SRI/TCI and the precoding information and the number of layers associated with the first SRI/TCI are valid, and indicate, through another bit, whether the second SRI/TCI and the precoding information and the number of layers associated with the second SRI/TCI are valid. The embodiment of the present application does not limit this.

It should be noted that the at least one SRI/TCI further includes a third SRI/TCI, a fourth SRI/TCI, a fifth SRI/TCI, and so on, and the application takes the example that the at least one SRI/TCI includes a first SRI/TCI and a second SRI/TCI as an example.

Optionally, the first bit is located in a field occupied by the first SRI/TCI.

Illustratively, the first SRI/TCI occupied field is included in DCI or higher layer signaling. And determining whether the first SRI/TCI and/or precoding information and the number of layers associated with the first SRI/TCI are/is valid or not through the value of the field occupied by the first SRI/TCI.

Specifically, 1bit in a field occupied by the first SRI/TCI may be used to indicate whether the first SRI/TCI and/or the precoding information and the number of layers associated therewith are valid, and if the value of the 1bit is 1, it indicates that the first SRI/TCI and/or the precoding information and the number of layers associated therewith are valid, and the terminal device may perform PUSCH transmission to the TRP 2; if the value of the 1bit is 0, it indicates that the first SRI/TCI and/or the precoding information and layer number associated therewith are invalid, and the terminal device cannot perform PUSCH transmission to the TRP 2. Or, if the value of the 1bit in the field occupied by the first SRI/TCI is 0, it indicates that the first SRI/TCI and/or the precoding information and the number of layers associated therewith are/is valid, and the terminal device may perform PUSCH transmission to the TRP 2; if the value of the 1bit is 1, it indicates that the first SRI/TCI and/or the precoding information and layer number associated therewith are invalid, and the terminal device cannot perform PUSCH transmission to the TRP 2.

Illustratively, the first SRI/TCI occupied field is included in DCI or higher layer signaling. And determining whether the first SRI/TCI and/or the precoding information and the number of layers associated with the first SRI/TCI and whether the second SRI/TCI and/or the precoding information and the number of layers associated with the second SRI/TCI are/is valid or not through the value of the field occupied by the first SRI/TCI. Specifically, when 2 bits in the field occupied by the first SRI/TCI are used to indicate whether the first SRI/TCI and/or the precoding information and the number of layers associated therewith, and the second SRI/TCI and/or the precoding information and the number of layers associated therewith are valid, whether the first SRI/TCI and/or the precoding information and the number of layers associated therewith, and the second SRI/TCI and/or the precoding information and the number of layers associated therewith are valid may be determined according to an actually adopted coding method. For example, a binary coding scheme is adopted, and the high bits of the 2 bits are used to indicate whether the first SRI/TCI and/or the precoding information and the number of layers associated therewith are valid, and the low bits of the 2 bits are used to indicate whether the second SRI/TCI and/or the precoding information and the number of layers associated therewith are valid.

Illustratively, the first bit may also be located in the second SRI/TCI occupied field. The specific implementation manner may refer to an implementation manner in which the first bit is located in the field occupied by the first SRI/TCI, and details are not repeated.

Optionally, the SRI/TCI corresponding to the reserved index in the at least one SRI/TCI is invalid.

Specifically, if the index value corresponding to the value of the SRI/TCI is the reserved index, it indicates that the SRI/TCI and its corresponding precoding information and layer number are invalid. The reserved index may be an index corresponding to invalid SRI/TCI or invalid precoding information and the number of layers preset by a terminal device or a network device or a protocol or standard.

In the embodiment of the application, the network device indicates whether the terminal device transmits to a single TRP or transmits to multiple TRPs by whether the SRI/TCI and/or the precoding information and the number of layers associated therewith are valid or not through DCI or higher layer signaling, thereby providing a technical scheme for supporting dynamic switching of the terminal device to the single TRP transmission and the multiple TRP transmission.

Example two

Optionally, the DCI or the higher layer signaling includes a first SRI/TCI field, where the first SRI/TCI field is used to indicate whether the first SRI/TCI is valid.

Wherein the first SRI/TCI field is further to indicate whether the second SRI/TCI is valid.

Specifically, the DCI or the high-level signaling may directly include the first SRI/TCI field, and according to a value of the first SRI/TCI field, the terminal device may determine whether the first SRI/TCI and the precoding information and the number of layers associated with the first SRI/TCI are valid, or determine whether the first SRI/TCI and the precoding information and the number of layers associated with the first SRI/TCI, and the second SRI/TCI and the precoding information and the number of layers associated with the second SRI/TCI are valid.

Illustratively, the first SRI/TCI field may be 1bit, 2bit, 3bit, etc., and the network device may determine the number of bits occupied by the first SRI/TCI field according to the number of SRI/TCI, for example, 1bit in the first SRI/TCI field may be used to indicate whether the first SRI/TCI and/or the precoding information and the number of layers associated therewith are valid; the 2 bits in the first SRI/TCI occupied field are also used to indicate whether the first SRI/TCI and/or precoding information and number of layers associated therewith, and whether the second SRI/TCI and/or precoding information and number of layers associated therewith, are valid.

In the embodiment of the application, the network device indicates whether the terminal device transmits to a single TRP or transmits to multiple TRPs by indicating whether the SRI/TCI and/or the precoding information and the number of layers associated therewith are valid or not through the first SRI/TCI field in the DCI or the higher layer signaling, thereby providing a technical scheme for supporting dynamic switching of the terminal device to the single TRP transmission and the multiple TRP transmissions.

EXAMPLE III

For uplink PUSCH transmission based on a non-codebook, the DCI or the high-layer signaling comprises at least one SRS resource indication or transmission configuration indication (SRI/TCI), and the at least one SRI/TCI comprises a first SRI/TCI and a second SRI/TCI.

Optionally, if there is a difference between the rank information corresponding to the at least one SRI/TCI, the first information is used to instruct the terminal device to transmit to a single TRP; and if the rank information corresponding to the at least one SRI/TCI is the same, the first information is used for indicating the terminal equipment to transmit to a plurality of TRPs.

The terminal device may determine the rank information of each SRI/TCI according to an index corresponding to the value of each SRI/TCI. The rank information is used for indicating the number of spatial layers, and when the rank information indicated by all the SRIs/TCIs in the at least one SRI/TCI is inconsistent, the terminal equipment is indicated to be single-TRP-oriented transmission; when the rank information indicated by all the SRIs/TCIs in the same order in the at least one SRI/TCI, it indicates that the terminal device is oriented to transmission of multiple TRPs, all the SRIs/TCIs included in the DCI or higher layer signaling are valid, and the terminal device may perform PUSCH transmission to the TRPs corresponding to all the SRIs/TCIs included in the DCI or higher layer signaling.

Illustratively, when there is a difference between rank information corresponding to at least one SRI/TCI, and the first information is used to indicate that the terminal device transmits to a single TRP, the terminal device may default that the first SRI/TCI or the second SRI/TCI included in the DCI or the higher layer signaling is valid. For example, the terminal device may perform PUSCH transmission to the TRP2 by using the precoding scheme and the uplink transmission resource corresponding to the first SRI/TCI, or perform PUSCH transmission to the TRP1 by using the precoding scheme and the uplink transmission resource corresponding to the second SRI/TCI.

Illustratively, when there is a difference between the rank information corresponding to at least one SRI/TCI and the first information is used to indicate that the terminal device transmits to a single TRP, the terminal device may default that the SRI/TCI corresponding to the minimum or maximum rank number in the at least one SRI/TCI is valid, where the rank number is a specific value of the rank information. For example, if the rank number corresponding to the first SRI/TCI is 1 and the rank number corresponding to the second SRI/TCI is 2, when the SRI/TCI with the minimum default rank number is valid, the terminal device determines that the first SRI/TCI is valid; when the SRI/TCI with the maximum default rank number is valid, the terminal equipment confirms that the second SRI/TCI is valid.

In the embodiment of the application, the network device indicates, through the rank information corresponding to the SRI/TCI in the DCI or the higher layer signaling, whether the terminal device transmits to a single TRP or to multiple TRPs, thereby providing a technical scheme for supporting dynamic switching between transmission from the terminal device to the single TRP and transmission from the terminal device to the multiple TRPs.

Example four

Specifically, if the index value corresponding to the value of the SRI/TCI is the reserved index, it indicates that the SRI/TCI is invalid, and the SRS resource indication corresponding to the SRI/TCI is invalid. The reserved index may be an index corresponding to an invalid SRI/TCI preset by a terminal device or a network device or a protocol or standard.

Exemplarily, if the value of the first SRI/TCI is the reserved index, it indicates that the first SRI/TCI is invalid, and the terminal device cannot perform PUSCH transmission to TRP 2.

Exemplarily, if the value of the first SRI/TCI is the reserved index, it indicates that both the first SRI/TCI and the second SRI/TCI are invalid, and the terminal device cannot perform PUSCH transmission to TRP2 or TRP 1.

In the embodiment of the application, the network device indicates whether the SRI/TCI is valid or not through the DCI or the value of the SRI/TCI in the higher layer signaling, so as to indicate whether the terminal device transmits to a single TRP or transmits to multiple TRPs, thereby providing a technical scheme for supporting dynamic switching between the terminal device transmitting to the single TRP and transmitting to the multiple TRPs.

EXAMPLE five

For non-codebook based uplink PUSCH transmission, the DCI or the higher layer signaling comprises at least one SRS resource indication or transmission configuration indication (SRI/TCI), and the at least one SRI/TCI comprises a first SRI/TCI and a second SRI/TCI.

In one possible example, the network device may also send the maximum rank number to the terminal device through higher layer signaling.

Optionally, when the maximum rank number is 1, a bit width of a field occupied by the first SRI/TCI is greater than a bit width of a field occupied by the second SRI/TCI. For example, if the occupied field of the second SRI/TCI is 1bit, the occupied field of the first SRI/TCI is more than 1 bit.

Further, the highest or lowest bit of the occupied field of the first SRI/TCI is used to indicate that the first SRI/TCI and/or the second SRI/TCI are invalid.

Illustratively, the most significant 1bit or the least significant 1bit of the field occupied by the first SRI/TCI is used to indicate whether the first SRI/TCI is valid.

Illustratively, the most significant 2 bits or the least significant 2 bits of the field occupied by the first SRI/TCI are used to indicate whether the first SRI/TCI and the second SRI/TCI are valid.

Illustratively, if the value of the first SRI/TCI is the reserved index, the first SRI/TCI or the second SRI/TCI is invalid, indicating that the terminal device cannot perform PUSCH transmission to the TRP2 or the TRP 1.

Optionally, when the maximum rank number is greater than 1 (e.g., 2, 3, 4, etc.), the bit width of the field occupied by the first SRI/TCI is greater than the bit width of the field occupied by the second SRI/TCI.

And if the bit width of the field occupied by the first SRI/TCI is greater than the bit width of the field occupied by the second SRI/TCI and the value of the first SRI/TCI is the reserved index, the first SRI/TCI or the second SRI/TCI is invalid, which indicates that the terminal equipment cannot perform PUSCH transmission to TRP2 or TRP 1.

The rank information corresponding to the second SRI/TCI is used for indicating the rank information of the first SRI/TCI and the rank information of the second SRI/TCI.

Specifically, when the first SRI/TCI cannot provide valid rank information (e.g., the first SRI/TCI has no corresponding rank information, the rank information corresponding to the first SRI/TCI is invalid, or the protocol specifies that the rank information corresponding to the first SRI/TCI is invalid, etc.), the rank information indicated by the second SRI/TCI is also applicable to the rank information of the first SRI/TCI.

Optionally, when the maximum rank number is greater than 1 (e.g., 2, 3, 4, etc.), the bit width of the field occupied by the first SRI/TCI is equal to the bit width of the field occupied by the second SRI/TCI.

Wherein the highest or lowest bit of the occupied field of the first SRI/TCI is used for indicating that the first SRI/TCI and/or the second SRI/TCI are invalid.

Further, when the first SRI/TCI cannot provide valid rank information, the rank information indicated by the second SRI/TCI is also applicable to the rank information of the first SRI/TCI.

In the embodiment of the application, the network device indicates whether the SRI/TCI is valid or not through the value of the SRI/TCI in the DCI or the higher layer signaling to indicate whether the terminal device transmits to a single TRP or transmits to multiple TRPs, thereby providing a technical scheme for supporting dynamic switching of the terminal device to the transmission of the single TRP and the transmission of the multiple TRPs.

EXAMPLE six

Specifically, the DCI or the high-layer signaling may directly include the first SRI/TCI field, and according to a value of the first SRI/TCI field, the terminal device may determine whether the first SRI/TCI is valid, or determine whether the first SRI/TCI and the second SRI/TCI are valid. Illustratively, the first SRI/TCI field may be 1bit, 2bit, 3bit, etc., and the network device may determine the number of bits occupied by the first SRI/TCI field according to the number of SRI/TCI, for example, use 1bit in the first SRI/TCI occupied field to indicate whether the first SRI/TCI and/or the precoding information and the number of layers associated therewith are valid; 2 bits in the occupied field of the first SRI/TCI are used to indicate whether the first SRI/TCI and/or the precoding information and the number of layers associated therewith, and whether the second SRI/TCI and/or the precoding information and the number of layers associated therewith are valid.

In the embodiment of the application, the network device indicates whether the SRI/TCI is valid or not through the first SRI/TCI in the DCI or the higher layer signaling to indicate whether the terminal device transmits to a single TRP or transmits to multiple TRPs, thereby providing a technical scheme for supporting dynamic switching between the terminal device transmitting to the single TRP and transmitting to the multiple TRPs.

EXAMPLE seven

For uplink PUSCH transmission based on a codebook, the DCI or the high-level signaling comprises at least one piece of precoding information and layer number, and the at least one piece of precoding information and layer number comprises first precoding information and layer number and second precoding information and layer number. Optionally, the corresponding index in the at least one precoding information and layer number is invalid for the precoding information and layer number of the reserved index.

Specifically, if the index values corresponding to the values of the precoding information and the number of layers are reserved indexes, it indicates that the precoding information and the number of layers are invalid, and both the precoding information and the number of layers and/or the SRI/TCI associated therewith are invalid. The reserved index may be an index corresponding to invalid precoding information and number of layers or invalid SRI/TCI preset by a terminal device or a network device or a protocol or standard.

It should be noted that the at least one SRI/TCI further includes third precoding information and a number of layers, fourth precoding information and a number of layers, fifth precoding information and a number of layers, and the like.

In the embodiment of the application, the network device indicates whether the terminal device transmits to a single TRP or transmits to multiple TRPs by indicating whether the precoding information and the number of layers and/or the SRI/TCI associated therewith are valid through the values of the precoding information and the number of layers in the DCI or the higher layer signaling, thereby providing a technical scheme for supporting the dynamic switching of the terminal device to the transmission of the single TRP and the transmission of the multiple TRPs.

Example eight

For uplink PUSCH transmission based on a codebook, the DCI or the high-level signaling comprises at least one piece of precoding information and layer number, and the at least one piece of precoding information and layer number comprises first precoding information and layer number and second precoding information and layer number.

Optionally, if the at least one piece of precoding information and the rank information corresponding to the number of layers are different, the first information is used to instruct the terminal device to transmit to a single TRP; and if the at least one piece of precoding information is the same as the rank information corresponding to the number of layers, the first information is used for indicating the terminal equipment to transmit to a plurality of TRPs.

The terminal device may determine the rank information of each precoding information and the number of layers according to an index corresponding to the value of each precoding information and the number of layers. The rank information is used for indicating the number of spatial layers, and when the at least one piece of precoding information is inconsistent with all pieces of precoding information in the number of layers and the rank information indicated by the number of layers, the terminal equipment is indicated to be oriented to single TRP transmission; when the at least one piece of precoding information is the same as all pieces of precoding information in the number of layers and the rank information indicated by the number of layers, it indicates that the terminal device is oriented to the transmission of multiple TRPs, all pieces of precoding information and the number of layers included in DCI or higher layer signaling and/or SRI/TCI associated therewith are effective, and the terminal device may perform PUSCH transmission to all pieces of precoding information and TRPs corresponding to the number of layers included in DCI or higher layer signaling.

Illustratively, when there is a difference between at least one precoding information and rank information corresponding to the number of layers, where the first information is used to indicate that the terminal device transmits to a single TRP, the terminal device may default that the first precoding information and the number of layers and/or SRI/TCI associated therewith included in the DCI or the higher layer signaling are valid, or that the second precoding information and the number of layers and/or SRI/TCI associated therewith are valid. For example, the terminal device may perform PUSCH transmission to the TRP2 using the precoding scheme corresponding to the first precoding information and the layer number, or perform PUSCH transmission to the TRP1 using the precoding scheme corresponding to the second precoding information and the layer number.

Illustratively, when there is a difference between at least one piece of precoding information and rank information corresponding to the number of layers, and the first information is used to indicate the terminal device to transmit to a single TRP, the terminal device may default that the precoding information and the number of layers corresponding to the minimum or maximum number of ranks among the at least one piece of precoding information and the number of layers and/or SRI/TCI associated therewith are valid, where the number of ranks is a specific value of the rank information. For example, if the number of ranks corresponding to the first precoding information and the number of layers is 1, and the number of ranks corresponding to the second precoding information and the number of layers is 2, when the precoding information and the SRI/TCI associated with the number of layers with the minimum default rank number are valid, the terminal device determines that the first precoding information and the SRI/TCI associated with the number of layers are valid; and when the precoding information with the maximum default rank number and the SRI/TCI associated with the layer number are valid, the terminal equipment confirms that the second precoding information and the SRI/TCI associated with the layer number are valid.

In the embodiment of the present application, the network device indicates, through DCI or rank information corresponding to the number of layers and precoding information in a higher layer signaling, whether the terminal device transmits to a single TRP or transmits to multiple TRPs, so as to provide a technical scheme for supporting dynamic switching between transmission from the terminal device to the single TRP and transmission from the terminal device to the multiple TRPs.

Example nine

In one possible example, when using Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM), the network device may also send a Transform precoding (transformrecon) to the terminal device through higher layer signaling.

Optionally, a transformpredecoder field configured in the higher layer signaling is a first value, the DCI or the higher layer signaling includes a second bit, and the second bit is used to indicate the first precoding information and the number of layers, and/or whether the second precoding information and the number of layers are valid.

The first value is a value corresponding to the transformpredder field in an enabled state, for example, the transformpredder field is enabled, and the second bit is 1 bit. Specifically, the DCI or the high-level signaling includes 1bit, where the 1bit is used to indicate whether the first precoding information and the number of layers and the SRI/TCI associated with the first precoding information and the number of layers are valid.

Optionally, the transformpredecoder field configured in the higher layer signaling is a second value, the DCI or the higher layer signaling includes a second bit, and the second bit is used to indicate the first precoding information and the number of layers, and/or whether the second precoding information and the number of layers are valid.

The second value is a value corresponding to the transformpredder field in a disabled state, for example, the transformpredder field is disabled, the second bit may be 1bit, 2bit, 3bit, or the like, and the network device may determine the second bit according to the precoding information and the number of layers.

It should be noted that the transform precoding field specified in the 5G standard may be transformpredator, but the name of the transform precoding field specified in other standards is also applicable to this application, i.e., this application does not limit the name of the transform precoding field.

Illustratively, the second bit is 1bit, which may indicate whether the first precoding information and the number of layers and the SRI/TCI associated with the first precoding information and the number of layers are valid.

Illustratively, the second bit is 2 bits, and the second bit may indicate whether the first precoding information and the number of layers and the SRI/TCI associated with the first precoding information and the number of layers, and the second precoding information and the number of layers and the SRI/TCI associated with the second precoding information and the number of layers are valid. For example, one bit of the 2 bits is used to indicate whether the first precoding information and the number of layers and the SRI/TCI associated with the first precoding information and the number of layers are valid, and the other bit is used to indicate whether the second number of layers precoding information and the number of layers and the SRI/TCI associated with the second precoding information and the number of layers are valid.

Optionally, the corresponding index in the at least one precoding information and layer number is invalid for the precoding information and layer number of the reserved index.

Specifically, if the index values corresponding to the values of the precoding information and the number of layers are reserved indexes, it indicates that the precoding information, the number of layers and their corresponding SRI/TCI are invalid. The reserved index may be an invalid SRI/TCI preset by the terminal device or the network device, or an index corresponding to the invalid precoding information and the number of layers.

Optionally, the second precoding information and the rank information corresponding to the number of layers are used to indicate the first precoding information and the rank information of the number of layers, and the second precoding information and the rank information of the number of layers.

Specifically, when the first precoding information and the number of layers cannot provide effective rank information (for example, the first precoding information and the number of layers do not correspond to rank information, the first precoding information and the number of layers correspond to rank information are invalid, or the protocol specifies that the first precoding information and the number of layers correspond to rank information are invalid, etc.), the second precoding information and the rank information indicated by the number of layers are also applied to the first precoding information and the rank information of the number of layers, that is, the first precoding information and the rank information of the number of layers are the same as the second precoding information and the rank information.

In the embodiment of the application, the network device indicates whether the terminal device transmits to a single TRP or transmits to multiple TRPs by indicating whether the precoding information and the number of layers and/or the SRI/TCI associated therewith are valid through DCI or higher layer signaling, thereby providing a technical scheme for supporting dynamic switching of the terminal device to the single TRP transmission and the multiple TRP transmission.

Example ten

In one possible example, the network device may further send the codebook type to the terminal device through higher layer signaling.

The terminal device can report the number of antenna ports and the antenna port coherence property capability of the terminal device to the network device, so that the network device determines the selectable codebook set corresponding to the terminal device according to the number of antenna ports and the antenna port coherence property capability of the terminal device. After the network device determines the codebook set, the network device sends the antenna coherence characteristic capability corresponding to the codebook set to the terminal device, so that the terminal device determines the codebook set.

In specific implementation, the antenna port coherence property capability of the terminal device includes three types, which are respectively: a full coherence (full coherence) indicating that there is coherence between transmitting antenna ports supported by the terminal device; non-coherence, which means that there is no coherence between the transmitting antenna ports supported by the terminal device; partial-coherence (partial-coherence) means that the coherence relationship between the transmit antenna ports supported by the terminal device is divided into 2 groups, the antenna ports within a group are fully coherent, and the antenna ports between groups are incoherent.

Optionally, the codebook type of the terminal device configured by the high-level signaling is fullyandpartialandnconcode.

When the codebook type of the configured terminal device is fullyandpartialAndNanCoient, the terminal device supports coherence among transmitting antenna ports when carrying out PUSCH transmission.

Specifically, if the index values corresponding to the values of the precoding information and the number of layers are reserved indexes, it indicates that the precoding information and the number of layers and/or the SRI/TCI associated therewith are invalid. The reserved index may be an index corresponding to invalid SRI/TCI or invalid precoding information and the number of layers preset by a terminal device or a network device or a protocol or standard.

Optionally, the codebook type of the terminal device configured by the high-level signaling is partial any codebook or non-codebook.

When the codebook type of the terminal equipment is configured to be partial anti-dnoncode, the terminal equipment supports the division of the coherent relationship among the transmitting antenna ports into 2 groups during the transmission of the PUSCH, wherein the antenna ports in the group are fully coherent and the antenna ports between the groups are incoherent.

When the codebook type of the terminal equipment is configured to be nocoherent, the terminal equipment supports no coherence among transmitting antenna ports when carrying out PUSCH transmission.

Optionally, the DCI or the high layer signaling includes a second bit, where the second bit is used to indicate whether the first precoding information and the number of layers and/or the second precoding information and the number of layers are valid.

The second bit may be 1bit, 2bit, 3bit, or the like, and the network device may determine the second bit according to the precoding information and the number of layers. Illustratively, the second bit is 1bit, which may indicate whether the first precoding information and the number of layers and the SRI/TCI associated with the first precoding information and the number of layers are valid. Illustratively, the second bit is 2 bits, and the second bit may indicate whether the first precoding information and the number of layers and the SRI/TCI associated with the first precoding information and the number of layers, and the second precoding information and the number of layers and the SRI/TCI associated with the second precoding information and the number of layers are valid.

Further, when the first precoding information and the number of layers cannot provide effective rank information, the second precoding information and the rank information corresponding to the number of layers are used to indicate the first precoding information and the rank information of the number of layers, and the second precoding information and the rank information of the number of layers, that is, the first precoding information and the rank information of the number of layers are the same as the second precoding information and the rank information of the number of layers.

It should be noted that the codebook types specified in the 5G standard may be fullyandpartialandncouorent, partialandncouorent, but codebook types specified in other standards with different names but the same functions are also applicable to the present application, that is, the present application does not limit the names of the codebook types.

EXAMPLE eleven

The second bit may be 1bit, 2bit, 3bit, etc., and the network device may determine the second bit according to the precoding information and the number of layers. Illustratively, the second bit is 1bit, which may indicate whether the first precoding information and the number of layers and the SRI/TCI associated with the first precoding information and the number of layers are valid. Illustratively, the second bit is 2 bits, and the second bit may indicate whether the first precoding information and the number of layers and the SRI/TCI associated with the first precoding information and the number of layers, and the second precoding information and the number of layers and the SRI/TCI associated with the second precoding information and the number of layers are valid.

Further, the second bit is located in the field occupied by the first precoding information and the number of layers, or the field occupied by the SRI/TCI associated with the first precoding information and the number of layers.

The DCI or the high-level signaling comprises first precoding information and a field occupied by the number of layers, or the first precoding information and a field occupied by SRI/TCI associated with the number of layers. And determining whether the first precoding information and the number of layers and/or the SRI/TCI associated with the first precoding information and the number of layers and/or the second precoding information and the number of layers and/or the SRI/TCI associated with the second precoding information and the number of layers are/is valid according to the value of the first precoding information and the number of layers occupied field or the SRI/TCI occupied field associated with the first precoding information and the number of layers.

Illustratively, 1bit in the first precoding information and layer number occupied field, or the SRI/TCI occupied field associated with the first precoding information and layer number may be used to indicate whether the first precoding information and layer number and/or the SRI/TCI associated therewith are valid. For example, if the value of the 1bit is 1, it indicates that the first precoding information and the number of layers and/or the SRI/TCI associated therewith are valid; if the value of the 1bit is 0, the first precoding information and the layer number and/or the SRI/TCI associated with the first precoding information and the layer number are invalid. Or, if the value of the 1bit is 0, it indicates that the first precoding information and the layer number and/or the SRI/TCI associated therewith are valid; and if the value of the 1bit is 1, the first precoding information and the layer number and/or the SRI/TCI associated with the first precoding information and the layer number are invalid.

For example, 2 bits of the first precoding information and layer number occupied field, or the SRI/TCI occupied field associated with the first precoding information and layer number may be used to indicate whether the first precoding information and layer number and/or the SRI/TCI associated therewith are valid, and whether the second precoding information and layer number and/or the SRI/TCI associated therewith are valid may be specifically determined according to an actually adopted coding mode. For example, in a binary coding manner, the high bits of 2 bits are used to indicate whether the first precoding information and the layer number and/or the SRI/TCI associated therewith are valid, and the low bits of 2 bits are used to indicate whether the second precoding information and the layer number and/or the SRI/TCI associated therewith are valid.

Specifically, when the first precoding information and the number of layers cannot provide effective rank information, then the second precoding information and the rank information indicated by the number of layers are also applicable to the first precoding information and the rank information of the number of layers, that is, the first precoding information and the rank information of the number of layers are the same as the second precoding information and the rank information of the number of layers.

The above description has introduced the solution of the embodiment of the present application mainly from the perspective of the method-side implementation process. It is understood that the network device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above functions. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative elements and algorithm steps described in connection with the embodiments provided herein. Whether a function is performed as hardware or computer software drives hardware 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 application.

Referring to fig. 3, fig. 3 is a block diagram illustrating functional units of an indicating apparatus 300 according to an embodiment of the present disclosure, where the apparatus 300 is applicable to a terminal device, and the apparatus 300 is also applicable to a network device. The apparatus 300 comprises a transceiving unit 310.

In a possible implementation manner, the apparatus 300 is configured to execute the respective flows and steps corresponding to the terminal device in the above indication method.

The transceiver unit 310 is configured to receive first information, where the first information is used to instruct the terminal device to transmit to a single TRP or instruct the terminal device to transmit to multiple TRPs.

Optionally, the first information is downlink control information DCI or a high-level signaling.

Optionally, the transmission mode of the terminal device is PUSCH transmission based on a non-codebook.

Optionally, the DCI or the higher layer signaling includes at least one SRS resource indication or transmission configuration indication SRI/TCI, where the at least one SRI/TCI includes a first SRI/TCI and a second SRI/TCI.

Optionally, the first bit is located in a field occupied by the first SRI/TCI.

Optionally, the first SRI/TCI field is further used to indicate whether the second SRI/TCI is valid.

Optionally, if there is a difference between the rank information corresponding to the at least one SRI/TCI, the first information is used to instruct the terminal device to transmit to a single TRP.

Optionally, the first SRI/TCI or the second SRI/TCI is valid.

Optionally, the SRI/TCI with the minimum or maximum number of corresponding ranks in the at least one SRI/TCI is valid.

Optionally, if the rank information corresponding to the at least one SRI/TCI is the same, the first information is used to instruct the terminal device to transmit to multiple TRPs.

Optionally, the bit width of the field occupied by the first SRI/TCI is greater than or equal to the bit width of the field occupied by the second SRI/TCI.

Optionally, the highest or lowest bit of the occupied field of the first SRI/TCI is used to indicate that the first SRI/TCI and/or the second SRI/TCI are invalid.

Optionally, the rank information corresponding to the second SRI/TCI is used to indicate the rank information of the first SRI/TCI and the rank information of the second SRI/TCI.

Optionally, if the corresponding index of the first SRI/TCI is a reserved index, the first SRI/TCI and/or the second SRI/TCI are invalid.

Optionally, the DCI or the high layer signaling includes at least one precoding information and a number of layers, where the at least one precoding information and the number of layers include first precoding information and the number of layers, and second precoding information and the number of layers.

Optionally, the transformdredor field configured in the higher layer signaling is a first value.

Optionally, the transformdredor field configured in the higher layer signaling is a second value.

Optionally, the codebook type of the terminal device configured by the high-level signaling is partial anti-dnoncoherent or nocoherenent.

Optionally, if there is a difference between the at least one piece of precoding information and the rank information corresponding to the number of layers, the first information is used to instruct the terminal device to transmit to a single TRP.

Optionally, the first precoding information and the number of layers, or the second precoding information and the number of layers are valid.

Optionally, the precoding information and the number of layers corresponding to the minimum or maximum rank number in the at least one piece of precoding information and the number of layers are valid.

Optionally, if the at least one piece of precoding information is the same as the rank information corresponding to the number of layers, the first information is used to instruct the terminal device to transmit to multiple TRPs.

In another possible implementation manner, the apparatus 300 is configured to execute the respective procedures and steps corresponding to the network device in the foregoing indication method.

The transceiver 310 is configured to send first information, where the first information is used to instruct a terminal device to transmit to a single TRP or instruct the terminal device to transmit to multiple TRPs.

Optionally, the first bit is located in the first SRI/TCI occupied field.

Optionally, the SRI/TCI corresponding to the index as the reserved index in the at least one SRI/TCI is invalid.

Optionally, the first SRI/TCI or the second SRI/TCI is valid.

Optionally, a bit width of the field occupied by the first SRI/TCI is greater than or equal to a bit width of the field occupied by the second SRI/TCI.

Optionally, the transformdredger field configured in the higher layer signaling is a first value.

It can be understood that the functions of each program module of the indication apparatus in the embodiment of the present application may be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process may refer to the relevant description of the foregoing method embodiment, which is not described herein again.

It should be understood that the apparatus 300 herein is embodied in the form of a functional unit. The term "unit" herein may refer to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an optional example, it may be understood by those skilled in the art that the apparatus 300 may be specifically a terminal device and a network device in the foregoing embodiment, and the apparatus 300 may be configured to execute each procedure and/or step corresponding to the terminal device and the network device in the foregoing method embodiment, and in order to avoid repetition, details are not described here again.

The device 300 of each scheme has the functions of realizing the corresponding steps executed by the terminal equipment and the network equipment in the method; the functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software comprises one or more modules corresponding to the functions; the transceiving unit 310 may be replaced by a transmitter and a receiver to perform transceiving operations and related processing operations in the respective method embodiments, respectively.

In the embodiment of the present application, the apparatus 300 in fig. 3 may also be a chip, a chip module, a UE, or a chip system, for example: system on chip (SoC). Correspondingly, the transceiver 310 may be a transceiver circuit of the chip, and is not limited herein.

Referring to fig. 4, fig. 4 is an electronic device provided in an embodiment of the present application, where the electronic device includes: one or more processors, one or more memories, one or more communication interfaces, and one or more programs; the one or more programs are stored in the memory and configured to be executed by the one or more processors.

In one possible implementation manner, the electronic device is a terminal device, and the program includes instructions for executing the following steps:

In another possible implementation manner, the electronic device is a network device, and the program includes instructions for performing the following steps:

and sending first information, wherein the first information is used for indicating the terminal equipment to transmit to a single TRP or the terminal equipment to transmit to a plurality of TRPs.

All relevant contents of each scene related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

It will be appreciated that the memory described above may include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile random access memory. For example, the memory may also store device type information.

In the embodiment of the present application, the processor of the above apparatus may be a Central Processing Unit (CPU), and the processor may also be other general processors, Digital Signal Processors (DSP), Application Specific Integrated Circuits (ASIC), Field Programmable Gate Arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software elements in a processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor executes instructions in the memory, in combination with hardware thereof, to perform the steps of the above-described method. To avoid repetition, it is not described in detail here.

The embodiment of the application provides a chip, which is used for acquiring first information, wherein the first information is used for indicating the terminal equipment to transmit to a single TRP or indicating the terminal equipment to transmit to a plurality of TRPs.

The embodiment of the application provides a chip module, which comprises a transceiver component and a chip, wherein the chip is used for receiving first information through the transceiver component, and the first information is used for indicating a terminal device to transmit to a single TRP or the terminal device to transmit to a plurality of TRPs.

The embodiment of the application provides a chip, wherein the chip is used for outputting first information, and the first information is used for indicating the terminal equipment to transmit to a single TRP or indicating the terminal equipment to transmit to a plurality of TRPs.

The embodiment of the application provides a chip module, which comprises a transceiver component and a chip, wherein the chip is used for sending first information through the transceiver component, and the first information is used for indicating a terminal device to transmit to a single TRP or the terminal device to transmit to a plurality of TRPs.

Embodiments of the present application further provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, and the computer program makes a computer execute part or all of the steps of any one of the methods as described in the above method embodiments.

Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any one of the methods as set out in the above method embodiments. The computer program product may be a software installation package.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a memory and includes several instructions for causing a computer device (which may be a personal computer, a server, or a TRP, etc.) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash disk, ROM, RAM, magnetic or optical disk, and the like.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An indication method is applied to a terminal device, and comprises the following steps:

2. The method of claim 1, wherein the first information is Downlink Control Information (DCI) or higher layer signaling.

3. The method according to claim 1 or 2, wherein the transmission mode of the terminal device is a non-codebook based PUSCH transmission.

4. The method according to claim 1 or 2, wherein the transmission mode of the terminal device is a codebook-based PUSCH transmission.

5. The method of claim 3 or 4, wherein the DCI or the higher layer signaling comprises at least one SRS resource indication or transmission configuration indication SRI/TCI, and wherein the at least one SRI/TCI comprises a first SRI/TCI and a second SRI/TCI.

6. The method of any of claims 3-5, wherein the DCI or the higher layer signaling comprises a first bit indicating whether the first SRI/TCI and/or the second SRI/TCI are valid.

7. The method of claim 6, wherein the first bit is located in the first SRI/TCI occupied field.

8. The method of any of claims 5-7, wherein an SRI/TCI of the at least one SRI/TCI whose corresponding index is a reserved index is invalidated.

9. The method of claim 5, wherein the DCI or the higher layer signaling comprises a first SRI/TCI field, and wherein the first SRI/TCI field is used to indicate whether the first SRI/TCI is valid.

10. The method of claim 9, wherein the first SRI/TCI field is further configured to indicate whether the second SRI/TCI is valid.

11. The method of claim 5, wherein the first information is used to instruct the terminal device to transmit to a single TRP if there is a difference between rank information corresponding to the at least one SRI/TCI.

12. The method of claim 11, wherein the first SRI/TCI or the second SRI/TCI is valid.

13. The method of claim 11, wherein the SRI/TCI with the smallest or largest number of corresponding ranks in the at least one SRI/TCI is valid.

14. The method of claim 5, wherein the first information is used for instructing the terminal device to transmit to a plurality of TRPs if the rank information corresponding to the at least one SRI/TCI is the same.

15. The method of claim 5, wherein a bit width of the occupied field of the first SRI/TCI is greater than or equal to a bit width of the occupied field of the second SRI/TCI.

16. The method of claim 15, wherein a highest or lowest bit of the occupied-by-first SRI/TCI field is used to indicate that the first SRI/TCI and/or the second SRI/TCI are invalid.

17. The method according to claim 15 or 16, wherein the rank information corresponding to the second SRI/TCI is used to indicate the rank information of the first SRI/TCI and the rank information of the second SRI/TCI.

18. The method according to claim 8 or 15, wherein the first SRI/TCI and/or the second SRI/TCI are/is invalid if the corresponding index of the first SRI/TCI is a reserved index.

19. The method of claim 4, wherein the DCI or the higher layer signaling comprises at least one of precoding information and a number of layers, and wherein the at least one of precoding information and a number of layers comprises first precoding information and a number of layers, and second precoding information and a number of layers.

20. The method of claim 19, wherein the transformrecedor field of the higher layer signaling configuration is a first value.

21. The method of claim 19, wherein the transformrecedor field of the higher layer signaling configuration is a second value.

22. The method of claim 19, wherein the higher layer signaling configures the codebook type of the terminal device to be fullyandpartialandnocourcent.

23. The method of claim 19, wherein the higher layer signaling configures the codebook type of the terminal device to be either partialAndnCoherent or nocodeherent.

24. The method according to any of claims 19-21, 23, wherein the DCI or the higher layer signaling comprises a second bit indicating whether the first precoding information and the number of layers and/or the second precoding information and the number of layers are valid.

25. The method of any of claims 19, 21 and 22, wherein the precoding information and the number of layers corresponding to the reserved index among the at least one precoding information and the number of layers are invalid.

26. The method according to any of claims 19-25, wherein the second precoding information and rank information corresponding to the number of layers are used to indicate the first precoding information and rank information of the number of layers, and the second precoding information and rank information of the number of layers.

27. The method of claim 19, wherein the first information is used to instruct the terminal device to transmit to a single TRP if there is a difference between the at least one precoding information and rank information corresponding to the number of layers.

28. The method of claim 27, wherein the first precoding information and the number of layers, or the second precoding information and the number of layers are valid.

29. The method of claim 27, wherein the precoding information and the number of layers corresponding to the minimum or maximum number of ranks in the at least one of precoding information and the number of layers are valid.

30. The method of claim 19, wherein the first information is used for instructing the terminal device to transmit to a plurality of TRPs if the at least one piece of precoding information and rank information corresponding to the number of layers are the same.

31. A method for indication, applied to a network device, the method comprising:

32. The method of claim 31, wherein the first information is DCI or higher layer signaling.

33. The method of claim 32, wherein the DCI or the higher layer signaling comprises at least one SRS resource indication or transmission configuration indication (SRI/TCI), and wherein the at least one SRI/TCI comprises a first SRI/TCI and a second SRI/TCI.

34. The method of claim 33, wherein the DCI or the higher layer signaling comprises a first bit indicating whether the first SRI/TCI is valid.

35. The method of claim 34, wherein the first bit is located in the first SRI/TCI occupied field.

36. The method of any of claims 33-35, wherein an SRI/TCI of the at least one SRI/TCI whose corresponding index is a reserved index is invalidated.

37. The method of claim 33, wherein the DCI or the higher layer signaling comprises a first SRI/TCI field, wherein the first SRI/TCI field is used to indicate whether the first SRI/TCI is valid.

38. The method of claim 37, wherein the first SRI/TCI field is further configured to indicate whether the second SRI/TCI is valid.

39. The method of claim 33, wherein the first information is used for instructing the terminal device to transmit to a single TRP if there is a difference between rank information corresponding to the at least one SRI/TCI.

40. The method of claim 39, wherein the first SRI/TCI or the second SRI/TCI is valid.

41. The method of claim 39, wherein the SRI/TCI with the smallest or the largest number of corresponding ranks in the at least one SRI/TCI is valid.

42. The method of claim 33, wherein the first information is used for instructing the terminal device to transmit to a plurality of TRPs if the at least one SRI/TCI corresponds to the same rank information.

43. The method of claim 33, wherein a bit width of the occupied field of the first SRI/TCI is greater than or equal to a bit width of the occupied field of the second SRI/TCI.

44. The method of claim 43, wherein a highest or lowest bit of a occupied-by-first SRI/TCI field is used to indicate that the first SRI/TCI and/or the second SRI/TCI are invalid.

45. The method as claimed in claim 43 or 44, wherein the rank information corresponding to the second SRI/TCI is used to indicate the rank information of the first SRI/TCI and the rank information of the second SRI/TCI.

46. The method as claimed in claim 41 or 43, wherein the first SRI/TCI or the second SRI/TCI is invalid if the corresponding index of the first SRI/TCI is a reserved index.

47. The method of claim 32, wherein the DCI or the higher layer signaling comprises at least one of precoding information and a number of layers, and wherein the at least one of precoding information and a number of layers comprises first precoding information and a number of layers, second precoding information and a number of layers.

48. The method of claim 47, wherein the transformrecedor field of the higher layer signaling configuration is a first value.

49. The method of claim 47, wherein the transformrecedor field of the higher layer signaling configuration is a second value.

50. The method of claim 47, wherein the higher layer signaling configures the codebook type of the terminal device to be fullyAndPartialAnnCoherent.

51. The method of claim 49, wherein the higher layer signaling configures the codebook type of the terminal device to be either partialAndnCoherent or nocodeherent.

52. The method of any of claims 47-49 and 51, wherein the DCI or the higher layer signaling comprises a second bit indicating whether the first precoding information and the number of layers are valid.

53. The method of any of claims 47, 49 or 50, wherein the precoding information and the number of layers corresponding to the at least one precoding information and the number of layers corresponding to the reserved index are invalid.

54. The method according to any of claims 47-53, wherein the second precoding information and rank information corresponding to number of layers are used to indicate the first precoding information and rank information for number of layers, and the second precoding information and rank information for number of layers.

55. The method of claim 47, wherein the first information is used for instructing the terminal device to transmit to a single TRP if there is a difference between the at least one precoding information and rank information corresponding to the number of layers.

56. The method of claim 55, wherein the first precoding information and the number of layers or the second precoding information and the number of layers are valid.

57. The method of claim 55, wherein the precoding information and the number of layers corresponding to the smallest or largest number of ranks in the at least one of precoding information and number of layers are valid.

58. The method of claim 47, wherein the first information is used for instructing the terminal device to transmit to a plurality of TRPs if the at least one piece of precoding information and rank information corresponding to the number of layers are the same.

59. An indicating device, applied to a terminal device, the device comprising:

60. An indication apparatus, applied to a network device, the apparatus comprising:

61. A chip, wherein the chip is configured to obtain first information, and the first information is used to instruct a terminal device to transmit to a single TRP or a terminal device to transmit to multiple TRPs.

62. A chip module comprises a transceiver module and a chip, wherein,

the chip is used for receiving first information through the transceiving component, wherein the first information is used for indicating the terminal equipment to transmit to a single TRP or indicating the terminal equipment to transmit to a plurality of TRPs.

63. A chip, wherein the chip is configured to output first information indicating that the terminal device transmits to a single TRP or that the terminal device transmits to a plurality of TRPs.

64. A chip module comprises a transceiver module and a chip, wherein,

the chip is used for sending first information through the transceiving component, and the first information is used for indicating the terminal equipment to transmit to a single TRP or indicating the terminal equipment to transmit to a plurality of TRPs.

65. An electronic device, characterized in that the terminal device comprises a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-31 or the steps in the method of any of claims 32-58.

66. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the steps of the method according to any one of claims 1-31 or the steps of the method according to any one of claims 32-58.