CN112134598B

CN112134598B - Indication method, terminal and network side equipment

Info

Publication number: CN112134598B
Application number: CN201910555910.9A
Authority: CN
Inventors: 陈晶晶; 胡南; 李岩; 金婧
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2022-06-07
Anticipated expiration: 2039-06-25
Also published as: WO2020259563A1; CN112134598A; WO2020259563A9

Abstract

The invention provides an indicating method, a terminal and network side equipment, and relates to the technical field of communication, wherein the indicating method comprises the following steps: receiving at least one MAC CE carrying first indication information for indicating activation/deactivation of TCI states of N network side devices, wherein N is an integer greater than or equal to 2. Therefore, each network side device does not need to send information for indicating the State of the TCI State to the terminal independently, and further, the interaction time delay among a plurality of network side devices can be eliminated, and the signal-to-noise ratio or the throughput rate of the terminal can be improved.

Description

Indication method, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an indication method, a terminal, and a network side device.

Background

Coordinated Multiple Points Transmission/Reception (CoMP) refers to that Multiple Transmission Reception Points (TRPs) separated in a geographic location cooperatively participate in data Transmission for one terminal or jointly receive data sent by one terminal.

The receiving beam direction of a Physical Downlink Shared Channel (PDSCH) of the TRP may be configured by a Transmission Configuration Indicator State (TCI State), a plurality of TCI states (up to 128) may be configured by Radio Resource Control (RRC) signaling, up to 8 TCI states may be activated by a Media Access Control (MAC) Control Element (Control Element, CE), and finally 1 TCI State actually adopted by the terminal is indicated by Downlink Control Information (DCI).

Since the coordinated multi-point transmission has the PDSCH with multiple TRPs, the PDSCH transmission directions of different TRPs may be different, and therefore, the terminal needs to be instructed to receive the TCI State used by different TRPs. In the prior art, each of a plurality of TRPs participating in coordinated multipoint transmission indicates a TCI State used by each TRP to a terminal through a Physical Downlink Control Channel (PDCCH). However, the coordinated multi-point transmission method belongs to a non-ideal backhaul scenario, and a certain interaction delay may exist between multiple TRPs, which may further affect the signal-to-noise ratio or throughput of the terminal service.

Disclosure of Invention

The embodiment of the invention provides an indication method, a terminal and network side equipment, and aims to solve the problem that a certain interaction time delay exists in the existing multipoint cooperative transmission mode.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides an indication method, including:

receiving at least one MAC CE carrying first indication information for indicating activation/deactivation of TCI states of N network side devices, wherein N is an integer greater than or equal to 2.

In a second aspect, an embodiment of the present invention provides another indication method, including:

and sending at least one MAC CE carrying first indication information for indicating the activation/deactivation of TCI states of N network side devices, wherein N is an integer greater than or equal to 2.

In a third aspect, an embodiment of the present invention provides another indication method, including:

receiving DCI, wherein the DCI comprises second indication information, the second indication information is used for indicating TCI states of N network side devices, and N is an integer greater than or equal to 2.

In a fourth aspect, an embodiment of the present invention provides another indication method, including:

sending DCI, wherein the DCI comprises second indication information, the second indication information is used for indicating TCI states of N network side devices, and N is an integer greater than or equal to 2.

In a fifth aspect, an embodiment of the present invention provides a terminal, including a processor and a transceiver,

the transceiver is configured to receive at least one MAC CE carrying first indication information, and is configured to indicate activation/deactivation of TCI states of N network-side devices, where N is an integer greater than or equal to 2.

In a sixth aspect, an embodiment of the present invention provides a network-side device, including a processor and a transceiver,

the transceiver is configured to transmit at least one MAC CE carrying first indication information, and is configured to indicate activation/deactivation of TCI states of N network-side devices, where N is an integer greater than or equal to 2.

In a seventh aspect, an embodiment of the present invention provides a terminal, including a processor and a transceiver,

the transceiver is configured to receive DCI, where the DCI includes second indication information, where the second indication information is used to indicate TCI states of N network-side devices, and N is an integer greater than or equal to 2.

In an eighth aspect, an embodiment of the present invention provides a network-side device, including a processor and a transceiver,

the transceiver is configured to send DCI, where the DCI includes second indication information, where the second indication information is used to indicate TCI states of N network-side devices, and N is an integer greater than or equal to 2.

In a ninth aspect, an embodiment of the present invention provides a terminal, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps in the indication method according to the first aspect or the third aspect.

In a tenth aspect, an embodiment of the present invention provides a network-side device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps in the indication method of the second aspect or the fourth aspect.

In an eleventh aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the above-mentioned indication method.

In the embodiment of the invention, the activation/deactivation of the TCI states of the N network side devices is indicated by at least one MAC CE carrying the first indication information, so that the activation/deactivation of the TCI states of the multiple network side devices participating in the multipoint cooperative transmission can be simultaneously determined according to the received at least one MAC CE, the condition that each network side device independently sends information for indicating the State of the TCI states to the terminal is not required, the interaction time delay among the multiple network side devices can be further eliminated, and the signal-to-noise ratio or the throughput rate of the terminal service is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a flowchart of an indicating method according to an embodiment of the present invention;

FIG. 2 is a diagram of a first indication field using 128 × 128 bits to indicate 128 × 128 TCI State combinations according to an embodiment of the present invention;

FIG. 3 is a diagram of a first indication field using 8 × 14 bits to indicate that 8 TCI State combinations are activated according to an embodiment of the present invention;

FIG. 4 is a diagram of a first indication field for indicating activation/deactivation of TCI State for 2 TRPs per 2 bits used according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a first indication field before and after using 128 bits to indicate activation/deactivation of all TCI states of 2 TRP configurations according to an embodiment of the present invention;

FIG. 6 is a flow chart of another indication method provided by an embodiment of the invention;

FIG. 7 is a flow chart of another indication method provided by the embodiments of the present invention;

FIG. 8 is a flow chart of another indication method provided by an embodiment of the invention;

fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a network side device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another terminal according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of another network-side device according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of another network-side device according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of another terminal according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides an indication method, a terminal and network side equipment, and aims to solve the problem that in the existing multipoint cooperative transmission mode, a certain interaction time delay exists among a plurality of TRPs, so that the signal-to-noise ratio or throughput rate of the terminal is influenced.

Referring to fig. 1, fig. 1 is a flowchart of an indicating method provided by an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:

step 101, receiving at least one MAC CE carrying first indication information, for indicating activation/deactivation of TCI states of N network side devices, where N is an integer greater than or equal to 2.

In this embodiment, the indication method may be applied to a terminal, where the receiving at least one MAC CE carrying the first indication information may be receiving one or more MAC CEs sent by a network side device through a PDCCH, and each MAC CE carries the first indication information.

In the embodiment of the present invention, it should be understood that the activation/deactivation of the TCI states indicating the N network-side devices includes the following two situations:

a TCI State indicating activation of the N network side devices;

TCI State indicating deactivation of N network side devices.

Specifically, when the number of the MAC CEs is one, the first indication information carried in the MAC CE may be used to indicate activation/deactivation of TCI states of N network-side devices, and when the number of the MAC CEs is multiple, the first indication information carried in each MAC CE may be used to indicate activation/deactivation of the TCI State of a certain network-side device, so that, through a set of the first indication information in the multiple MAC CEs, activation/deactivation of the TCI states of multiple network-side devices may be indicated, for example, through the N MAC CEs, activation/deactivation of the TCI states of N network-side devices may be indicated.

The N network side devices may be part of TRPs or all of TRPs in a plurality of TRPs participating in coordinated multipoint transmission (hereinafter, the network side devices participating in coordinated multipoint transmission are referred to by TRPs), but may also be other network devices capable of performing joint transmission, and N is an integer greater than or equal to 2.

Specifically, the MAC CE may indicate, through the indication information, whether the TCI state is applied to 1 network-side device or N network-side devices.

More specifically, the MAC CE may indicate, through the indication information, whether a partial field in the first indication information is used to indicate TCI state activation/deactivation of 1 network side device, or whether the partial field is used to indicate TCI state activation/deactivation of N network side devices.

The TCI state may be a TCI state for receiving data by the terminal or a TCI state for sending data by the network side; or the TCI state at which the terminal sends data or the TCI state at which the network side receives data.

Specifically, the MAC CE may also be used to indicate TCI state activation/deactivation of N network-side devices only. In order to distinguish from the MAC CE indicating the TCI state activation/deactivation of 1 network side device, the MAC CE indicating the TCI state activation/deactivation of N network side devices may further distinguish through an indication bit, where the indication bit is used to indicate that the MAC CE is used for the TCI state activation/deactivation of N network side devices.

The TCI State is used to indicate a Quasi-Co-Location QCL (Quasi Co-Location) relationship between data and reference symbols, that is, the transmit beam direction of the transmit data and the reference symbols is the same or the receive beam direction of the receive data and the reference symbols is the same.

The activation/deactivation of the TCI State may include an activated State or a deactivated State of the TCI State, and specifically, each of the N TRPs may configure a plurality of TCI states and may activate/deactivate a part of the TCI states, and the TRP may indicate to the terminal through the MAC CE which of the TCI states of each of the N TRPs participating in the coordinated multipoint transmission are activated/deactivated states.

In this way, the TRP may jointly indicate to the terminal the activation/deactivation of the TCI states of the N TRPs participating in the coordinated multipoint transmission, so that the terminal only needs to receive the first indication information in the MAC CE through one PDCCH to know the activation/deactivation states of the TCI states of the N TRPs.

In the specific embodiment of the present invention, it is necessary to indicate activation/deactivation of the TCI states of the N network side devices through the first indication information carried in the MAC CE, and there are various ways of indicating activation/deactivation of the TCI states of the N network side devices through the first indication information, which are described below respectively.

Optionally, the first indication information includes at least one of:

a first indication field, configured to indicate activation/deactivation of a TCI State combination/pairing, where the TCI State combination/pairing includes G activated/deactivated TCI states, and G is an integer greater than or equal to 2;

a second indication field for indicating activation/deactivation of the TCI State.

In a first embodiment, the TCI State of N TRPs participating in coordinated multipoint transmission may be indicated in a combined/paired indication manner, and in particular, when the number of the at least one MAC CE is one, the TCI State of a plurality of TRPs may be indicated only by the first indication information carried in one MAC CE in the combined/paired indication manner. Specifically, the first indication information may include a first indication field for indicating activation/deactivation of TCI State combinations/pairs, that is, the first indication field may indicate an activation or deactivation State of the TCI State combinations/pairs, where each group of TCI State combinations/pairs includes G activated/deactivated TCI states, the G activated/deactivated TCI states correspond to G TRPs of the N TRPs in a one-to-one manner, and when G is equal to N, the first indication field may indicate activated/deactivated TCI states of the N TRPs.

In particular, since each TRP may be configured with a plurality of TCI states and each TRP may in turn activate/deactivate a different one of the TCI states, the TCI states of the N TRPs may form a plurality of different sets of activated/deactivated TCI State combinations/pairs with each TRP using different ones of the respectively configured TCI states. For example, 128 TCI states are configured for each TRP in 2 TRPs, so that each TRP can select 1 or more TCI states from the 128 TCI states for activation/deactivation, and thus the TCI states of 2 TRPs can form 128 × 128 TCI State combinations/pairs.

For each TCI State combination/pairing, 1 indication bit (e.g., 1 bit) may be optionally used to indicate whether the TCI State combination/pairing is activated or deactivated, for example, a bit of 1 indicates that the corresponding TCI State combination/pairing is activated, i.e., each TCI State in the TCI State combination/pairing is activated, and a bit of 0 indicates that the corresponding TCI State combination/pairing is not activated, i.e., each TCI State in the TCI State combination/pairing is not activated; alternatively, N indication bits (e.g., N bits) may be used to respectively indicate whether N TCI states in the TCI State combination/pair are activated or deactivated, that is, for N TCI states in a TCI State combination/pair, whether a certain TCI State in the TCI State combination/pair is activated or deactivated may be separately indicated, for example, 10 is used to indicate that the TCI State corresponding to TRP0 in the TCI State combination/pair is activated and the TCI State corresponding to TRP1 is not activated. That is, the first indication field may include L bits for indicating activation/deactivation of TCI State combination/pairing, the L being an integer greater than or equal to 1.

Alternatively, for each set of TCI State combinations/pairings, C indication bits (e.g., C bit bits) may also be used to indicate the TCI State ID or bit index of the set of TCI State combinations/pairings in the activated/deactivated State of corresponding N TRPs, and R × C indication bits may be used together to indicate the TCI State ID or bit index of R set of TCI State combinations/pairings, where R is an integer greater than or equal to 1. For example, a partial number of the C bits may be used to indicate 1 TCI State ID in TRP0, and the remaining bits of the C bits are used to indicate 1 TCI State ID in TRP1, the C bits forming a TCI State combination.

In this embodiment, as for the above-mentioned combination/pairing indication manner that uses 1 indication bit to indicate the activation or deactivation State of each group of TCI State combination/pairing, there may be two different indication manners, one of which is: the first indication field indicates, in a bitmap manner, each group of TCI State combinations/pairings formed by TCI State combinations/pairings of the N TRPs to be activated/deactivated, and each group of TCI State combinations/pairings may indicate an activation/deactivation status thereof using 1 bit.

For example, taking 2 TRPs for cooperative transmission as an example, each TRP is configured with 128 TCI states, the TCI states of 2 TRPs may form 128 × 128 TCI State combinations, each group of TCI State combinations may use 1 bit to indicate its activation/deactivation status, so that 128 × 128 bits may be used to indicate activation/deactivation of each group of the 128 × 128 TCI State combinations; specifically, if each TCI State in a certain group of TCI State combinations is activated, the bit corresponding to the group of TCI State combinations is set to 1, which indicates that each TCI State in the group of TCI State combinations is activated, that is, 2 TCI states in the group of TCI State combinations corresponding to the 2 TRPs one by one are activated; if bit corresponding to a certain group of TCI State combination is set to 0, the group of TCI State combination is deactivated, and at least one of 2 TCI State corresponding to the 2 TRPs in the group of TCI State combination is not activated.

Specifically, as shown in fig. 2, 128 × 128 bits may be employed to indicate the activation/deactivation status of each of 128 × 128 sets of TCI State combinations formed of 2 TRPs, where T is the activation/deactivation status of each of the 128 × 128 sets of TCI State combinations₀、T₁、T₂… … and T₁₂₇Activation/deactivation of the 1 st, 2 nd, 3 rd, and 128 th TCI State combinations of the 128 x 128 TCI State combinations may be indicated, respectively. It should be noted that fig. 2 only illustrates the TCI State combination indicated by each bit of the 128 × 128 bits, and does not indicate the data structure of the first indication field.

In this manner, the first indication field may include a status indication bit, where the status indication bit is set in one-to-one correspondence with a TCI state combination/pairing in a TCI state group set, and is used to indicate activation/deactivation of the corresponding TCI state combination/pairing, where the TCI state group set includes all the TCI state combinations/pairings that may be formed by the TCI states configured by the network side device, and each TCI state group includes N TCI states corresponding to the TRPs.

Specifically, the first indication field may include status indication bits consistent with the number of TCI state combinations/pairings in the TCI state group set, for example, 128 × 128 status indication bits are used to respectively indicate the status of each of the 128 × 128 TCI state combinations, where the status indication bits may use 2 different bits to indicate the activation or deactivation status of the corresponding TCI state combination/pairing, for example, a status indication position 1 of a certain TCI state combination indicates that the TCI state included in the TCI state combination is in the activation status, and a status indication position 0 indicates that the TCI state included in the TCI state combination is in the deactivation status.

The second is as follows: the indication of activating/deactivating partial combination/pairing in all TCI State combinations/pairings formed by the TCI states of the N TRPs through the first indication field may be specifically implemented by indicating a sequence number (e.g., ID number) of the activated/deactivated TCI State combinations/pairings, where all TCI State combinations/pairings formed by the TCI states of the N TRPs are allocated with respective sequence numbers. Specifically, the sequence number (e.g., ID number) of the activated TCI State combination/pairing may be indicated by a decimal value corresponding to a plurality of bits.

For example, taking 2 TRPs for cooperative transmission as an example, each TRP is configured with 128 TCI states, the TCI states of 2 TRPs may form 128 × 128 TCI State combinations, each group of TCI State combinations may use W (e.g., W ═ 14) bits to indicate its activation/deactivation status, so that K groups of TCI State combinations in the 128 × 128 TCI State combinations may be indicated with K × W bits only;

when each TRP in 2 TRPs needs to activate X TCI State, K ^ X can be taken, wherein X TCI State of 2 TRPs can form X ^ X group TCI State combinations, in order to avoid repeated indication, when the TCI State combinations required to be indicated by the K groups are selected, 2 TCI State in each group of TCI State combinations are ensured to be different from other groups, and then the X TCI State of each TRP is indicated to be respectively activated through the TCI State combinations of the K groups.

Specifically, as shown in fig. 3, since at most 8 activated TCI State combinations can be indicated in the MAC CE, at most 8 × 14 bits can be used to indicate activation of 8 TCI State combinations of the 128 × 128 TCI State combinations, where T is₀～T₁₃May indicate activation of a group of the 128 x 128 TCI State combinations, Tsj₁₄～T₂₇Can indicate activation of another one of the 128 x 128 combinations of TCI State, and so on, up to which activation can be indicated by 8 x 14 bitsThe 8 TCI State combinations in the 128 × 128 TCI State combinations are described, wherein 2 TCI State indicated by each TCI State combination in the 8 TCI State combinations are different from other groups, and a value corresponding to 14 bits can indicate a sequence number of a certain group in the 128 × 128 TCI State combinations. It should be noted that fig. 3 only illustrates the TCI State combinations indicated by each 14 bits of the 8 × 14 bits, and does not indicate the data structure of the first indication field.

In this manner, the first indication field may include sequence number indication information, where the sequence number indication information is used to indicate a sequence number of an activated/deactivated TCI state combination/pairing in a TCI state group set, where the TCI state group set includes all TCI state combinations/pairings that may be formed by TCI states configured by the network side device, and each TCI state combination/pairing includes N TCI states corresponding to the N network side devices one to one.

Specifically, each group of TCI state combinations/pairings in the TCI state combination set may be numbered in sequence, so that each group of TCI state combinations/pairings has a respective sequence number, and before sending the MAC CE to the terminal, the corresponding TCI state combination/pairing may be determined according to the TCI state in which each TRP is in the activated/deactivated state, and then the sequence number of the TCI state combination/pairing that needs to be indicated in the TCI state combination set is determined, so as to generate a corresponding sequence number indication field, and then the corresponding MAC CE is sent to the terminal.

For example, if the sequence number indication fields of sequence numbers 000, 010, and 101 are included in the first indication information in the received MAC CE, it may be determined that TCI state combinations of groups 0, 2, and 5 in the TCI state combination set are in an active state.

Alternatively, the first indication field may also include an index indication bit for indicating an index of the activated/deactivated TCI state combination/pairing.

The index may be identification information of activated/deactivated TCI state combinations/pairs, and specifically, different index identifications may be set for each group of TCI state combinations/pairs in advance, so that the terminal may determine which TCI state combination/pair the indicated activated/deactivated TCI state combination/pair is specifically by using the index indication bit in the first indication field.

In this embodiment, for the above-mentioned combined indication manner that the N indication bits are used to respectively indicate the activation or deactivation states of N TCI states in a group of TCI State combinations/pairings, it may be understood that the first indication field may include N indication bits in one-to-one correspondence with the N network side devices, where each indication bit is used to indicate the activation/deactivation State of one TCI State in the TCI states configured by the corresponding network side device.

That is, for each TRP, 1 indicator bit may be used to indicate an activation/deactivation State of one of the TCI states of the TRP configuration, that is, the first indication information may include a target indication field, where the target indication field includes N indicator bits in one-to-one correspondence with the N TRPs participating in the coordinated multipoint transmission.

In particular, since each TRP may be configured with a plurality of TCI states, and each TRP may in turn activate/deactivate a different TCI State therein, the target indication field may be provided with a different number of indication bits according to the difference in the number of TCI states required to be indicated by each TRP. For example, each TRP is configured with 128 TCI State, so that at least N indication bits can be used to indicate the activation/deactivation status of one TCI State of each TRP in the N TRPs one by one, and at most N x 128^ N indication bits can be used to achieve full indication of the activation/deactivation status of 128 TCI State of each TRP in the N TRPs.

Here, a 128 × 128 combination is also described, and in the first embodiment, 2 TCI states in each TCI State combination can only be activated at the same time, and thus only apply to a multi-point cooperative transmission scenario, while in the present embodiment, the TCI State of each TRP can be activated individually, so that the present embodiment is also applicable to a single TRP transmission scenario, for example, when 128 indicator bits corresponding to the configured 128 TCI states of 1 TRP in 2 TRPs are all set to 0, it indicates that the TRP is not currently participating in cooperative transmission. Thus, the present embodiment can be applied to both coordinated multipoint transmission and single point transmission.

As shown in fig. 4, taking the example of cooperative transmission of 2 TRPs, each TRP is configured with 128 TCI states, so that activation/deactivation of one TCI State of the 2 TRP configured TCI states can be indicated using 2 indication bits corresponding to the 2 TRPs one by one, where T0 and T1 can respectively indicate whether TCI State0 of TRP0 and TCI State0 of TRP1 are activated (e.g., a position of T0 may indicate whether TCI State0 of TRP0 is activated, a position of T1 is 0 may indicate that TCI State0 of TRP1 is not activated), T2 and T3 can respectively indicate whether TCI State1 of TRP0 and TCI State1 of TRP1 are activated, T1 and T1 can respectively indicate whether TCI State1 of TRP1 and TRP1 of TRP1 are activated, and all combinations of TCI states of TRP 685 and 685 are activated by analogy. It should be noted that fig. 4 only illustrates the TCI State of the TRP indicated by each bit of the 2 × 128^2 bits, and does not represent the data structure of the first indication field.

In this embodiment, for the above-mentioned combination indication manner of TCI State ID or bit index for indicating activation/deactivation of R group TCI State combination/pairing using R × C indication bits, it may be understood that the first indication field includes at least one sixth indication field, that is, R sixth indication fields, where R is an integer greater than or equal to 1, each sixth indication field indicates an activated/deactivated TCI State ID of the network side device or a bit index of a TCI State in the MAC CE indicating activation/deactivation of the network side device, specifically, each sixth indication field may indicate an activated/deactivated TCI State ID of W network side devices or a bit index of a TCI State in the MAC CE indicating activation/deactivation of W network side devices, in order to ensure that each sixth indication field may indicate TCI State states of a plurality of network side devices, the W may be an integer greater than or equal to 2.

That is, the MAC CE may indicate activation/deactivation of R groups of TCI State combinations/pairings, and each sixth indication field may include C indication bits, where the C indication bits may indicate activated/deactivated TCI State IDs of W network-side devices or bit indexes of activated/deactivated TCI states of W network-side devices in the MAC CE, for example, for each TCI State ID, 8 indication bits are used for indication, and for 2 network-side devices, 2 × 8 bits may be used to indicate the activated/deactivated TCI State ID of each network-side device in a group of TCI State combinations/pairings, and 8 × 2 × 8 bits are used to indicate the activated/deactivated TCI State ID of 8 groups of TCI State combinations/pairings.

In practical application, the activated/deactivated TCI state ID of each network side device may be determined first, and then one activated/deactivated TCI state ID is selected from each network side device for combination/pairing, where each combination/pairing is indicated by a sixth indication field.

Wherein the sixth indication field may include: at least one seventh indication field, for example, W seventh indication fields, where each seventh indication field indicates an activated/deactivated TCI state ID of one network side device or a bit index of the activated/deactivated TCI state of one network side device in the MAC CE, and to ensure that each sixth indication field can indicate TCI state states of multiple network side devices, W may be an integer greater than or equal to 2.

In the second embodiment, the activation/deactivation status of the TCI State of each network side device may be independently indicated in a separate indication manner, that is, the first indication information may also include a second indication field for indicating the activation/deactivation of the TCI State.

Wherein, when the number of the MAC CEs is one, the second indication field may include at least one of:

at least one third indication field, such as M third indication fields, where each third indication field corresponds to a network side device, and each bit in the field is used to indicate activation/deactivation of a TCI state of the network side device; wherein, to ensure that the indication of the TCI state of the plurality of network side devices is achieved through the second indication field, M may be an integer greater than or equal to 2;

at least one fourth indication field, such as K fourth indication fields, where each fourth indication field indicates a TCI state ID of an activated TCI state of one network side device; wherein, to ensure that the indication of the TCI state of the plurality of network side devices is achieved through the second indication field, K may be an integer greater than or equal to 2;

when the number of the MAC CEs is multiple, a second indication field in the first indication information carried by each MAC CE includes:

a fifth indication field, the fifth indication field corresponding to a network side device, each bit in the field for indicating activation/deactivation of a TCI state of the corresponding network side device.

In this embodiment, when the number of the MAC CEs is one, for each TRP, a third indication field may be respectively adopted to indicate the activation/deactivation statuses of all TCI states of the TRP configuration, and the length of the third indication field may be equal to the number of TCI states of the TRP configuration, for example, for a certain TRP, 128 bits may be adopted to indicate the activation/deactivation statuses of 128 TCI states of the TRP configuration one by one.

As shown in fig. 5, taking 2 TRPs for cooperative transmission as an example, each TRP is configured with 128 TCI states, so that the first 128 bits in the MAC CE can be used to indicate activation/deactivation of all TCI states configured by TRP0, and the last 128 bits in the MAC CE can be used to indicate activation/deactivation of all TCI states configured by TRP1, where a bit is set to 1 to indicate that the corresponding TCI State is activated and a bit is set to 0 to indicate that the corresponding TCI State is not activated; it should be noted that fig. 5 only illustrates the TCI states of the TRPs indicated by the first 128 bits and the last 128 bits of the 2 × 128 bits, respectively, and does not indicate the data structure of the first indication field.

Or for each TRP, a fourth indication field may be used to indicate the ID number of the TCI State of the TRP in an active State. It should be noted that, in order to implement a full indication of the TCI State configured by the N network side devices, both M and K may be equal to N. Specifically, the TCI State ID of the activated TCI State may be indicated by a decimal value corresponding to the fourth indication field.

Specifically, since each TRP may be configured with a plurality of TCI states, and each TRP may in turn activate/deactivate a different TCI State therein, the fourth indication field may have a different field length according to the number of activated TCI states that the corresponding TRP needs to indicate, for example, each TRP is configured with 128 TCI states, and for each TRP, 7 bits may be used to indicate the ID number of each configured TCI State, so that only n × 7 bits may be used to indicate the TCI State IDs of n activated TCI states of the 128 TCI states of the TRP configuration.

For example, in the case that a maximum of 8 TCI states can be activated per TRP, 8 TCI State IDs in an activated State of all TCI states configured by TRP0 can be indicated by using the previous field (the field length may be 8 × 7 bits) in the MAC CE, and 8 TCI State IDs in an activated State of all TCI states configured by TRP1 can be indicated by using the latter field in the MAC CE, so that the indication of the activated TCI states of 2 TRPs can be achieved by using only 8 × 14 bits.

When the number of the MAC CEs is multiple, for each TRP, one MAC CE may be respectively used to indicate activation/deactivation of the TCI State of the TRP, specifically, the MAC CE may be indicated by a second indication field in the first indication information carried by the MAC CE, the second indication field in each MAC CE includes a fifth indication field for indicating activation/deactivation of the TCI State of the corresponding TRP, and a length of each fifth indication field may be related to the number of the TCI states required to be indicated by the corresponding TRP, for example, the length of the fifth indication field may be equal to the number of the TCI states configured by the corresponding TRP or equal to the number of the TCI states in an activated/deactivated State of the corresponding TRP.

For example, taking 2 TRPs for cooperative transmission as an example, a terminal may receive 2 MAC CEs, where one MAC CE carries first indication information for indicating activation/deactivation of a TCI State of a TRP0, the first indication information includes a fifth indication field corresponding to a TRP0, each bit in the fifth indication field is used to indicate whether each TCI State of the TRP0 is activated or deactivated, and another MAC CE carries first indication information for indicating activation/deactivation of the TCI State of the TRP1, the first indication information includes a fifth indication field corresponding to a TRP1, and each bit in the fifth indication field is used to indicate whether each TCI State of the TRP1 is activated or deactivated.

In the foregoing manner, the MAC CE may indicate activation/deactivation of the TCI state of at least 1 network side device by N bits, where N is an integer. In one approach, each of the N bits indicates activation/deactivation of a TCI state ID. In yet another mode, the N bits include at least one bit section with a length S, and the bit section with the length S is used for indicating the TCI state ID of the activated TCI state.

Further, the MAC CE may indicate the TCI state combination by P bits, P being an integer. The P bits indicate at least one TCI state combination. By one approach, K TCI state combinations are indicated by P bits, and then one TCI state combination is indicated by P/K bits.

Further, the P bits may include at least 2 bit segments of length P1, and P1 is an integer. And the bit segment with the length of P1 may indicate the active TCI state ID of a network side device, or indicate the bit index of the active TCI state ID of a network side device in the MAC CE. The bit segment with the length P1 may also indicate the sequential position of the activated TCI state of one network side device among all the activated TCI states. For example, a network side device activates 8 TCI states, P1 may indicate the sequential positions of the 8 activated TCI states in the MAC CE by 3 bits, 000 represents the first activated TCI state (assuming that the bit sequence in the MAC CE is from top to bottom and from right to left), 001 represents the 2 nd activated TCI state, and so on, 111 represents the eighth activated TCI state.

Optionally, the method further includes:

obtaining the composition information of TCI State combination/pairing;

wherein the composition information of the TCI State combination/pairing comprises at least one of:

index information of TCI State combination/pairing;

combining/pairing sequence number information in a TCI State group set, wherein the TCI State group set comprises all TCI State combinations which can be formed by TCI State configured by N network side devices respectively;

number information of TCI states included in the TCI State combination/pairing;

index information of the TCI State included in the TCI State combination/pairing;

and the corresponding relation information of the TCI State and the network side equipment is included in the TCI State combination/pairing.

The above-mentioned TCI State combination/pairing composition information may be obtained in various ways, for example, may be predefined in a protocol, or configured by a network side device, for example, the network side device may be issued through RRC signaling, or issued through a broadcast message, or issued in a MAC CE, and so on.

Specifically, the composition information of the TCI State combination/pairing may include one or more of index information of the TCI State combination/pairing, sequence number information of each TCI State combination/pairing in the TCI State group set, number information of the TCI states included in the TCI State combination/pairing, index information of the TCI states included in the TCI State combination/pairing (e.g., TCI State ID identification), and correspondence information of the TCI states and TRPs included in the TCI State combination/pairing (i.e., to which of the N TRPs each TCI State in the TCI State combination/pairing corresponds).

Optionally, the MAC CE further includes at least one of the following information:

a serving cell identity;

bandwidth Part (BWP) identification;

joint transmission indication information;

associated information of the joint transmission;

and (4) data information.

Wherein, the serving cell identifier (serving cell ID) indicates to which serving cell the MAC CE is applied. The above-mentioned BWP identification (BWP ID) indicates to which BWP the MAC CE applies. The joint Transmission refers to Multi-TRP (Multiple Transmission Reception Point), and is also referred to as inter-base station cooperative Transmission. The joint transmission indication information refers to whether TCI state activation/deactivation of joint transmission is included in the current MAC CE, whether specific TCI state activation/deactivation in the MAC CE is applied to joint transmission, or whether specific TCI state activation/deactivation in the MAC CE is applied to non-joint transmission. In other words, the joint transmission indication information may include usage indication information for indicating whether the current MAC CE is used to indicate the TCI State activation/deactivation states of the plurality of network-side devices, that is, indicating that the current MAC CE of the terminal is used for joint transmission, or indicating that M bits in the current MAC CE are used to indicate the TCI State activation/deactivation states of the plurality of network-side devices.

The information related to the joint transmission may include at least one of:

indication information whether joint transmission is adopted;

the number of network side devices performing data transmission, that is, the number of network side devices participating in joint transmission (for example, N devices);

the number of network side equipment corresponding to the TCI state;

network side device identification corresponding to the TCI state, that is, which network side device each TCI state corresponds to (e.g., TRP0, TRP1, etc.).

The data information includes at least one of the following:

first data indication information for indicating whether the MAC CE includes the first indication information;

second data indication information, configured to indicate location information of the first indication information on the MAC CE;

third data indication information for indicating bit number information required by the first indication information;

a field length of the MAC CE;

the length of a field occupied by the TCI state information of the joint transmission;

the length of a field occupied by each network side device for data transmission;

the field length occupied by the TCI state information of each network side device for data transmission.

In this embodiment, the MAC CE may further include first data indication information, where the first data indication information is used to indicate whether the MAC CE includes the first indication information, and when the MAC CE includes the first indication information, the first data indication information indicates that the MAC CE received by the terminal includes the first indication information.

The MAC CE may further include second data indication information indicating location information of the first indication information in the MAC CE, wherein the location information may include at least one of a start location and an end location of the first indication information in the MAC CE

The MAC CE may further include third data indication information, where the third data indication information is used to indicate bit number information required by the first indication information.

When the location information of the first indication information indicated in the second data indication information at the MAC CE only includes the start location or the end location of the first indication information at the MAC CE, the start location and the end location of the first indication information at the MAC CE may also be determined in combination with third data indication information in the MAC CE, that is, the bit number information required by the first indication information.

In the indication method in this embodiment, the activation/deactivation of the TCI states of the N network side devices is indicated by at least one MAC CE carrying the first indication information, so that the activation/deactivation of the respective TCI states of the multiple network side devices participating in the coordinated multipoint transmission can be determined simultaneously according to the received at least one MAC CE, and it is not necessary for each network side device to separately send information indicating the State of the TCI State to the terminal, thereby eliminating interaction delay among the multiple network side devices and improving the signal-to-noise ratio or throughput rate of the terminal service.

In an embodiment of the present invention, the terminal may be any device having a storage medium, for example: terminal devices such as computers (Computer), Mobile phones, Tablet Personal computers (Tablet Personal Computer), Laptop computers (Laptop Computer), Personal Digital Assistants (PDA), Mobile Internet Devices (MID), and Wearable devices (Wearable Device).

Referring to fig. 6, fig. 6 is a flowchart of another indication method provided by the embodiment of the present invention. As shown in fig. 6, the method comprises the steps of:

step 601, sending at least one MAC CE carrying first indication information, configured to indicate activation/deactivation of TCI states of N network side devices, where N is an integer greater than or equal to 2.

The indication method in this embodiment may be applied to a network side device, and it should be noted that this embodiment is used as an implementation of the network side device corresponding to the embodiment shown in fig. 1, and specific implementation thereof may refer to relevant descriptions in the embodiment shown in fig. 1, and in order to avoid repeated descriptions, the embodiment is not described again.

Optionally, the first indication information includes at least one of:

Optionally, the first indication field includes:

l bits are used to indicate activation/deactivation of TCI State combinations/pairings, L being an integer greater than or equal to 1.

Optionally, the first indication field includes:

sequence number indication information, which is used for indicating the sequence number of the activated/deactivated TCI State combination/pairing in the TCI State group set;

or

The State indicating bits are arranged in one-to-one correspondence with TCI State combinations/pairings in the TCI State group set and used for indicating the activation/deactivation of the corresponding TCI State combinations/pairings;

or

An index indication bit for indicating an index of activated/deactivated TCI State combinations/pairings.

Optionally, when the number of the MAC CEs is one, the second indication field includes at least one of:

a fifth indication field corresponding to one network side device, each bit in the field for indicating activation/deactivation of a TCI state of the corresponding network side device.

Optionally, the first indication field includes:

at least one sixth indication field, each sixth indication field indicating a TCI state ID of activation/deactivation of the network side device or a bit index of the TCI state of activation/deactivation of the network side device in the MAC CE.

Optionally, the sixth indication field includes:

at least one seventh indication field, for example, W seventh indication fields, where each seventh indication field indicates an activated/deactivated TCI state ID of one network side device or a bit index of the activated/deactivated TCI state of one network side device in the MAC CE, and to ensure that each sixth indication field can indicate TCI state states of multiple network side devices, W may be an integer greater than or equal to 2.

Optionally, the method further includes:

acquiring composition information of TCI State combination/pairing;

index information of TCI State combination/pairing;

number information of TCI states included in the TCI State combination/pairing;

and the TCI State combination/pairing comprises the corresponding relation information of the TCI State and the network side equipment.

Optionally, the MAC CE further includes at least one of:

a serving cell identity;

bandwidth part BWP identification;

joint transmission indication information;

associated information of the joint transmission;

and (4) data information.

The joint transmission indication information may indicate whether the current MAC CE is used for activating/deactivating the TCI states of N network-side devices, where N is an integer greater than or equal to 2; or the joint transmission indication information may indicate whether the current MAC CE includes activation/deactivation of TCI states of more than 1 network-side device.

Optionally, the information related to the joint transmission includes at least one of the following:

indication information whether joint transmission is adopted;

the number of network side devices for data transmission;

the number of network side equipment corresponding to the TCI state;

and the network side equipment identifier corresponding to the TCI state.

Optionally, the data information includes at least one of:

first data indication information, configured to indicate whether the MAC CE includes the first indication information, or the first data indication information is used to indicate that a partial field in the MAC CE is used to indicate activation/deactivation of TCI states of N network-side devices (N is an integer greater than or equal to 2), or the first data indication information is used to indicate that a partial field in the MAC CE is used to indicate activation/deactivation of TCI states of 1 network-side device;

second data indication information for indicating location information of the first indication information at the MAC CE;

a field length of the MAC CE;

The above optional implementation manner may refer to the relevant description in the embodiment shown in fig. 1, and in order to avoid repeated description, the embodiment is not described again.

In the indication method in this embodiment, the activation/deactivation of the TCI states of the N network side devices is indicated by at least one MAC CE carrying the first indication information, so that the terminal can simultaneously determine the activation/deactivation of the respective TCI states of the multiple network side devices participating in the coordinated multipoint transmission according to the received at least one MAC CE, and it is not necessary for each network side device to separately send information indicating the State of the TCI State to the terminal, thereby eliminating interaction delay among the multiple network side devices and improving the signal-to-noise ratio or throughput rate of the terminal service.

Referring to fig. 7, fig. 7 is a flowchart of another indicating method provided by the embodiment of the invention. As shown in fig. 7, the method comprises the steps of:

step 701, receiving DCI, where the DCI includes second indication information, where the second indication information is used to indicate TCI states of N network-side devices, where N is an integer greater than or equal to 2.

The indication method in this embodiment may be applied to a terminal, where the DCI indicates a TCI State ID used by the terminal for a corresponding network side device, and the TCI states of the N network side devices indicated by the second indication information are TCI states applied when receiving or sending data, that is, the TCI states may be a TCI State used by the terminal to receive data or a TCI State used by the network side to send data, for example, a TCI State used by a PDSCH or a PDCCH; or may be a TCI state used by the terminal to transmit data or a TCI state used by the network side to receive data, such as a TCI state used by PUCCH/PUSCH/PRACH.

Optionally, the second indication information may be a TCI c code point or a TCI field in the DCI.

The receiving DCI may be downlink control information DCI sent by a network side device, where the DCI includes second indication information used to indicate TCI states of N network side devices, where the N network side devices may be N TRPs participating in coordinated multipoint transmission, and N is an integer greater than or equal to 2.

In particular, each TRP of the N TRPs may be configured with a plurality of TCI State, and part of the TCI State in the plurality of TCI State configured by each TRP is in an activated State, and the other part of the TCI State is in a deactivated State, after the terminal learns the TCI State in the activated/deactivated State of each TRP through the received MAC CE, the actually adopted TCI State is further selected from the activated TCI states, so the network side device may indicate the TCI State used by each TRP in the N TRPs of the terminal by issuing DCI to the terminal, and specifically may indicate which TCI State each TRP uses through the second indication information respectively, or which set of TCI State combinations/pairings to use for the activated TCI State combination/pairing, therefore, the terminal can carry out data transmission with the N TRPs through the TCI State used by each TRP, and higher signal-to-noise ratio or throughput is guaranteed to be obtained.

When DCI indicates that the TCI states of the N network-side devices are activated/deactivated by multiple MAC CEs, the second indication information may indicate that the TCI state in each MAC CE is the used TCI state, for example, the second indication information indicates that the TCI state used by each network-side device is the TCI state ID corresponding to the first activated TCI state in the corresponding MAC CE using 01, the second indication information indicates that the TCI state used by each network-side device is the TCI state ID corresponding to the second activated TCI state in the corresponding MAC CE using 10, and so on.

Optionally, the second indication information includes:

at least one eighth indication field, such as P eighth indication fields, each for indicating one TCI State from among the TCI states in an activated State; in order to ensure that the indication of the TCI state used by each of the plurality of network-side devices is achieved through the second indication information, P may be an integer greater than or equal to 2;

or

At least one ninth indication field, e.g., Q ninth indication fields, each for indicating one TCI State from the configured TCI states; in order to ensure that the indication of the TCI state used by each of the plurality of network-side devices is achieved through the second indication information, Q may be an integer greater than or equal to 2;

or

A tenth indication field for indicating one TCI State combination/pairing from among the activated TCI State combinations/pairings;

or

An eleventh indication field to indicate one TCI State combination/pairing from among the TCI State combinations/pairings.

If activation/deactivation of TCI state of a plurality of TRPs is indicated using a plurality of MAC CEs, the above-mentioned second indication information is applied to each MAC CE. For example, the second indication information indicates that the terminal transmits the TCI state activated by the second one of the MAC CEs, the second indication information is applied to each of the plurality of MAC CEs, and the TCI state ID of the TCI state activated by the second one of the different MAC CEs may be different.

In a first embodiment, the second indication information may include P eighth indication fields, each of the eighth indication fields respectively corresponding to one of the N TRPs, each of the eighth indication fields being used to indicate one TCI State from among TCI states in an active State of the corresponding TRP. For example, each TRP has 8 TCI states in active State, and the corresponding eighth indication field may indicate one TCI State from among the 8 TCI states in active State of the TRP. Each eighth indication field may indicate the TCI state ID used by a corresponding decimal value. Specifically, there may be several ways as follows:

the first method is as follows: t bits of the eighth indication field indicate the TCI state ID adopted by the terminal, and

indicating the TCI state ID employed. If the ith bit in the eighth indication field is 1, a is 1; if the ith bit is 0, a is 0.

The second method comprises the following steps: of T bits of an eighth indication field

Instructing the terminal to use the second in the MAC CE

An activated TCI state ID. If the ith bit in the eighth indication field is 1, a is 1; if the ith bit is 0, a is 0.

In a second embodiment, the second indication information may include Q ninth indication fields, each of the ninth indication fields respectively corresponding to one of the N TRPs, each of the ninth indication fields being used to indicate one TCI State from the TCI states configured for the corresponding TRP; for example, each TRP is configured with 128 TCI states, and the corresponding ninth indication field may be one TCI State indicated from the 128 TCI states configured by the TRP, with the indicated TCI State being in an active State.

In a third embodiment, the second indication information may include a tenth indication field for indicating one TCI State combination/pairing from among activated TCI State combinations/pairings, the TCI State combination/pairing including N TCI states, the N TCI states corresponding to the N TRPs one to one; for example, taking 2 TRPs for coordinated multipoint transmission as an example, each TRP is configured with 128 TCI states, and 128 × 128 TCI State combinations may be formed among the TCI states of the 2 TRPs, wherein there are 64 activated TCI State combinations, so that the tenth indication field may be one TCI State combination indicated for use from among the 64 activated TCI State combinations.

In this embodiment, the tenth indication field may indicate the TCI state ID used by a corresponding decimal value. Specifically, there may be several ways as follows:

the first method is as follows: s bits of the tenth indication field indicate TCI state combination/pairing ID adopted by the terminal, and

indicating the adopted TCI state combination/pairing ID, and if the ith bit in the tenth indication field is 1, A is 1; if the ith bit is 0, a is 0.

The second method comprises the following steps: of S bits of a tenth indication field

Instructing the terminal to use the second in the MAC CE

An activated TCI state combination/pairing ID, if the ith bit in the tenth indication field is 1, a is 1; if the ith bit is 0, a is 0.

In a fourth embodiment, the second indication information may include an eleventh indication field for indicating one TCI State combination/pairing from among TCI State combinations/pairings, the TCI State combination/pairing including N TCI states, the N TCI states corresponding to the N TRPs one-to-one; for example, taking 2 TRPs for coordinated multipoint transmission as an example, each TRP is configured with 128 TCI states, 128 × 128 TCI State combinations may be formed between the TCI states of the 2 TRPs, so that the eleventh indication field may indicate one TCI State combination from the 128 × 128 activated TCI State combinations, and 2 TCI states included in the indicated TCI State combination are in an activated State.

Optionally, the second indication information is used for one TCI state, or for N TCI states, or for 1 TCI state combination/pairing is indicated by the network, and specifically, the use information of the second indication information may be indicated by the network through signaling, where the use information indicates that the second indication information is used for one TCI state, or for N TCI states, or for 1 TCI state combination/pairing.

In this embodiment, the use information of the second indication information may also be indicated by a network through signaling, for example, a network side device may issue signaling through a MAC CE, an RRC message, or a broadcast, so as to indicate a use of the second indication information, where the use information may indicate whether the second indication information is used for one TCI state or N TCI states, or is used for 1 TCI state combination/pairing, that is, the TCI state indicated in the second indication information is used by 1 network side device, or is used by each of N network side devices.

Optionally, a partial field in the second indication information is used to indicate one TCI state, or to indicate N TCI states, or to indicate that 1 TCI state combination/pairing is indicated by a network, and specifically, usage information of the second indication information may be indicated by the network through signaling, where the usage information indicates that a partial field in the second indication information is used to indicate one TCI state, or to indicate N TCI states, or to indicate 1 TCI state combination/pairing.

Further, the usage information may also indicate that a part of fields in the second indication information is used to indicate one TCI state, or to indicate N TCI states, or to combine/pair 1 TCI state, that is, by the usage information, it may be quickly determined which fields in the second indication information are used to indicate one TCI state, or which fields are used to indicate N TCI states, or which fields are used to indicate 1 TCI state combination/pair. For example, the second indication information is to include H bits, and the use information may indicate that H1 bits of the H bits are used to indicate one TCI state, or H2 bits of the H bits are used to indicate N TCI states, or H3 bits of the H bits are used to indicate 1 TCI state combination/pairing.

In the indication method in this embodiment, the terminal may determine, based on the indication of the DCI, the TCI State used by each of the multiple network-side devices participating in the coordinated multipoint transmission by receiving the DCI including the indication information indicating the TCI states of the N network-side devices, and it is not necessary for each network-side device to separately send the information indicating the used TCI State to the terminal, so that the interaction delay between the multiple network-side devices may be eliminated, and the signal-to-noise ratio or throughput of the terminal may be improved.

Referring to fig. 8, fig. 8 is a flowchart of another indication method provided by the embodiment of the present invention, and is used for a network side device. As shown in fig. 8, the method comprises the steps of:

step 801, sending DCI, where the DCI includes second indication information, where the second indication information is used to indicate TCI states of N network side devices, and N is an integer greater than or equal to 2.

It should be noted that, this embodiment is used as an implementation of the network side device corresponding to the embodiment shown in fig. 7, and specific implementation of the implementation may refer to relevant descriptions in the embodiment shown in fig. 7, and in order to avoid repeated descriptions, this embodiment is not described again.

Optionally, the TCI states of the N network side devices indicated by the second indication information are TCI states applied when receiving or sending data.

Optionally, the second indication information includes:

or

Optionally, the second indication information is used for one TCI state, or used for N TCI states, or used for 1 TCI state combination/pairing to be indicated by the network.

Optionally, a partial field in the second indication information is used to indicate one TCI state, or is used to indicate N TCI states, or is used for 1 TCI state combination/pairing to be indicated by the network.

The above optional implementation manner may refer to the related description in the embodiment shown in fig. 7, and in order to avoid repeated description, the description of this embodiment is not repeated.

In the indication method in this embodiment, the DCI including the indication information for indicating the TCI states of the N network side devices is sent to the terminal, so that the terminal can determine, based on the indication of the DCI, the TCI State used by each of the multiple network side devices participating in the coordinated multipoint transmission, and it is not necessary for each network side device to separately send the information for indicating the used TCI State to the terminal, thereby eliminating interaction delay between the multiple network side devices and improving the signal-to-noise ratio or throughput of the terminal.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 9, the terminal 900 includes:

a first receiving module 901, configured to receive at least one MAC CE carrying first indication information, and configured to indicate activation/deactivation of TCI states of N network-side devices, where N is an integer greater than or equal to 2.

Optionally, the first indication information includes at least one of:

Optionally, the first indication field includes:

sequence number indication information for indicating the sequence number of the activated/deactivated TCI State combination/pairing in the TCI State group set;

or

Optionally, the first indication field includes:

at least one sixth indication field, where each sixth indication field indicates an activated/deactivated TCI state ID of the network side device or a bit index of the activated/deactivated TCI state of the network side device in the MAC CE.

Optionally, the sixth indication field includes:

Optionally, the terminal 900 further includes:

the acquisition module is used for acquiring the composition information of TCI State combination/pairing;

index information of TCI State combination/pairing;

number information of TCI states included in the TCI State combination/pairing;

Optionally, the MAC CE further includes at least one of:

a serving cell identity;

bandwidth part BWP identification;

joint transmission indication information;

associated information of the joint transmission;

and (4) data information.

indication information whether joint transmission is adopted;

the number of network side devices for data transmission;

the number of network side equipment corresponding to the TCI state;

and the network side equipment identifier corresponding to the TCI state.

Optionally, the data information includes at least one of the following:

a field length of the MAC CE;

The terminal 900 can implement each process implemented by the terminal in the method embodiment shown in fig. 1, and is not described herein again to avoid repetition. Thus, the terminal 900 may determine activation/deactivation of the TCI State of each of the multiple network-side devices participating in the coordinated multipoint transmission simultaneously according to the received at least one MAC CE, and it is not necessary for each network-side device to separately send information for indicating the State of the TCI State to the terminal, so that the interaction delay between the multiple network-side devices may be eliminated, and the signal-to-noise ratio or throughput of the terminal service may be improved.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a network-side device according to an embodiment of the present invention, and as shown in fig. 10, the network-side device 1000 includes:

a first sending module 1001, configured to send at least one MAC CE carrying first indication information, configured to indicate activation/deactivation of TCI states of N network side devices, where N is an integer greater than or equal to 2.

Optionally, the first indication information includes at least one of:

Optionally, the first indication field includes:

or

at least one fourth indication field, such as K fourth indication fields, where each fourth indication field indicates a TCI state ID of an activated TCI state of one network side device; wherein, to ensure that the indication of the TCI state of the plurality of network side devices is implemented by the second indication field, K may be an integer greater than or equal to 2;

Optionally, the first indication field includes:

Optionally, the sixth indication field includes:

Optionally, the network-side device 1000 further includes:

index information of TCI State combination/pairing;

number information of TCI states included in the TCI State combination/pairing;

Optionally, the MAC CE further includes at least one of:

a serving cell identity;

bandwidth part BWP identification;

joint transmission indication information;

associated information of the joint transmission;

and (4) data information.

indication information whether joint transmission is adopted;

the number of network side devices for data transmission;

the number of network side equipment corresponding to the TCI state;

and the network side equipment identifier corresponding to the TCI state.

Optionally, the data information includes at least one of:

a field length of the MAC CE;

The network side device 1000 can implement each process implemented by the network side device in the method embodiment shown in fig. 6, and is not described here again to avoid repetition. The network side device 1000 of the embodiment of the present invention indicates activation/deactivation of TCI states of N network side devices through at least one MAC CE carrying first indication information, so that the terminal can simultaneously determine activation/deactivation of the respective TCI states of multiple network side devices participating in coordinated multipoint transmission according to the received at least one MAC CE, and it is not necessary for each network side device to separately send information for indicating the states of the TCI states to the terminal, thereby eliminating interaction delay among the multiple network side devices and improving the signal-to-noise ratio or throughput rate of the terminal service.

Referring to fig. 11, fig. 11 is a schematic structural diagram of another terminal according to an embodiment of the present invention, and as shown in fig. 11, a terminal 1100 includes:

a second receiving module 1101, configured to receive DCI, where the DCI includes second indication information, where the second indication information is used to indicate TCI states of N network-side devices, where N is an integer greater than or equal to 2.

Optionally, the TCI state of the N network side devices indicated by the second indication information is a TCI state applied when receiving or sending data.

Optionally, the second indication information includes:

at least one eighth indication field, such as P eighth indication fields, each for indicating one TCI State from among the TCI states in an activated State; in order to ensure that the indication of the TCI state used by each of the plurality of network-side devices is implemented by the second indication information, P may be an integer greater than or equal to 2;

or

An eleventh indication field to indicate one TCI State combination/pair from among the TCI State combinations/pairs.

Optionally, the second indication information is used for one TCI state, or for N TCI states, or for 1 TCI state combination/pairing indicated by the network.

The terminal 1100 is capable of implementing each process implemented by the terminal in the method embodiment shown in fig. 7, and is not described here again to avoid repetition. The terminal 1100 of the embodiment of the present invention receives the DCI including the indication information indicating the TCI states of the N network side devices used, so that the terminal can determine, based on the indication of the DCI, the TCI State used by each of the plurality of network side devices participating in the coordinated multipoint transmission, and does not need to send information indicating the TCI State used by each network side device to the terminal separately, thereby eliminating the interaction delay between the plurality of network side devices and improving the signal-to-noise ratio or throughput of the terminal.

Referring to fig. 12, fig. 12 is a schematic structural diagram of another network-side device according to an embodiment of the present invention, and as shown in fig. 12, a network-side device 1200 includes:

a second sending module 1201, configured to send DCI, where the DCI includes second indication information, where the second indication information is used to indicate TCI states of N network-side devices, and N is an integer greater than or equal to 2.

Optionally, the second indication information includes:

or

The network side device 1200 can implement each process implemented by the network side device in the method embodiment shown in fig. 8, and is not described here again to avoid repetition. The network side device 1200 of the embodiment of the present invention sends the DCI including the indication information for indicating the TCI states of the N network side devices used to the terminal, so that the terminal can determine, based on the indication of the DCI, the TCI State used by each of the multiple network side devices participating in the coordinated multipoint transmission, and does not need to send the information for indicating the TCI State used by each network side device to the terminal separately, thereby eliminating the interaction delay between the multiple network side devices and improving the signal-to-noise ratio or throughput of the terminal.

The embodiment of the present invention further provides a network side device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when being executed by the processor, the computer program implements each process of the above-mentioned indication method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Specifically, referring to fig. 13, an embodiment of the present invention further provides a network-side device, which includes a bus 1301, a transceiver 1302, an antenna 1303, a bus interface 1304, a processor 1305, and a memory 1306.

In an embodiment, the transceiver 1302 is configured to transmit at least one MAC CE carrying first indication information for indicating activation/deactivation of TCI states of N network-side devices, where N is an integer greater than or equal to 2.

Further, the first indication information includes at least one of:

Further, the first indication field includes:

or

Further, when the number of the MAC CEs is one, the second indication field includes at least one of:

at least one fourth indication field, such as K fourth indication fields, where each fourth indication field indicates a TCI state ID of an activated TCI state of one network side device; wherein, to ensure that the indication of the TCI state of the plurality of network side devices is achieved through the second indication field, K may be an integer greater than or equal to 2.

Further, the first indication field includes:

Further, the sixth indication field includes:

Further, the processor 1305 is configured to obtain composition information of TCI State combination/pairing;

index information of TCI State combination/pairing;

number information of TCI states included in the TCI State combination/pairing;

Further, the MAC CE further includes at least one of:

a serving cell identity;

bandwidth part BWP identification;

joint transmission indication information;

associated information of the joint transmission;

and (4) data information.

Further, the information related to the joint transmission includes at least one of:

indication information whether joint transmission is adopted;

the number of network side devices for data transmission;

the number of network side equipment corresponding to the TCI state;

and the network side equipment identifier corresponding to the TCI state.

Further, the data information includes at least one of:

a field length of the MAC CE;

In this embodiment, the network side device further includes: a computer program stored on the memory 1306 and executable on the processor 1305. Wherein the computer program when executed by the processor 1305 may perform the steps of:

In another embodiment, the transceiver 1302 is configured to send DCI, where the DCI includes second indication information, where the second indication information is used to indicate TCI states of N network-side devices used, where N is an integer greater than or equal to 2.

Further, the TCI states of the N network-side devices indicated by the second indication information are TCI states applied when data is received or transmitted.

Further, the second indication information includes:

or

Further, the second indication information is indicated by the network for one TCI state, or for N TCI states, or for 1 TCI state combination/pairing.

Further, a partial field in the second indication information is used for indicating one TCI state, or for indicating N TCI states, or for 1 TCI state combination/pairing to be indicated by the network.

In this embodiment, the network-side device further includes: a computer program stored on the memory 1306 and executable on the processor 1305. Wherein the computer program when executed by the processor 1305 may implement the steps of:

sending DCI, wherein the DCI comprises second indication information, the second indication information is used for indicating TCI states of N used network side devices, and N is an integer greater than or equal to 2.

In FIG. 13, a bus architecture (represented by the bus 1301), the bus 1301 can include any number of interconnected buses and bridges, the bus 1301 linking together various circuits including one or more processors, represented by the processor 1305, and memory, represented by the memory 1306. The bus 1301 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 1304 provides an interface between the bus 1301 and the transceiver 1302. The transceiver 1302 may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 1305 is transmitted over a wireless medium through the antenna 1303, and further, the antenna 1303 receives the data and transmits the data to the processor 1305.

The processor 1305 is responsible for managing the bus 1301 and general processing, and may provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. While the memory 1306 may be used to store data used by the processor 1305 in performing operations.

Alternatively, the processor 1305 may be a CPU, ASIC, FPGA or CPLD.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned indication method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

Fig. 14 is a schematic structural diagram of another terminal for implementing various embodiments of the present invention, where the terminal 1400 includes, but is not limited to: a transceiving unit 1401, a network module 1402, an audio output unit 1403, an input unit 1404, a sensor 1405, a display unit 1406, a user input unit 1407, an interface unit 1408, a memory 1409, a processor 1410, a power supply 1411, and the like. Those skilled in the art will appreciate that the terminal configuration shown in fig. 14 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

In an embodiment, the transceiver 1401 is configured to receive at least one MAC CE carrying first indication information, and is configured to indicate activation/deactivation of TCI states of N network-side devices, where N is an integer greater than or equal to 2.

Optionally, the first indication information includes at least one of:

Optionally, the first indication field includes:

or

Optionally, the first indication field includes:

Optionally, the sixth indication field includes:

Optionally, the processor 1410 is configured to obtain composition information of TCI State combination/pairing;

index information of TCI State combination/pairing;

number information of TCI states included in the TCI State combination/pairing;

Optionally, the MAC CE further includes at least one of:

a serving cell identity;

bandwidth part BWP identification;

joint transmission indication information;

associated information of the joint transmission;

and (4) data information.

indication information whether joint transmission is adopted;

the number of network side devices for data transmission;

the number of network side equipment corresponding to the TCI state;

and the network side equipment identifier corresponding to the TCI state.

Optionally, the data information includes at least one of the following:

a field length of the MAC CE;

In another embodiment, the transceiver unit 1401 is configured to receive DCI, where the DCI includes second indication information, where the second indication information is used to indicate TCI states of N network-side devices, and N is an integer greater than or equal to 2.

Optionally, the second indication information includes:

at least one eighth indication field, e.g., P eighth indication fields, each of the eighth indication fields for indicating one TCI State from the TCI states in an active State; in order to ensure that the indication of the TCI state used by each of the plurality of network-side devices is achieved through the second indication information, P may be an integer greater than or equal to 2;

or

The terminal 1400 can implement each process implemented by the terminal in the method embodiments shown in fig. 1 or fig. 7, and can achieve the same beneficial effects, and for avoiding repetition, details are not repeated here.

It should be understood that, in the embodiment of the present invention, the transceiver unit 1401 may be configured to receive and transmit signals during a process of transmitting and receiving information or a call, and specifically, receive downlink data from a base station and then process the received downlink data to the processor 1410; in addition, uplink data is transmitted to the base station. In general, the transceiver unit 1401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. The transceiving unit 1401 may also communicate with a network and other devices through a wireless communication system.

The terminal provides the user with wireless broadband internet access through the network module 1402, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 1403 may convert audio data received by the transceiving unit 1401 or the network module 1402 or stored in the memory 1409 into an audio signal and output as sound. Also, the audio output unit 1403 may also provide audio output related to a specific function performed by the terminal 1400 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 1403 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1404 is for receiving an audio or video signal. The input Unit 1404 may include a Graphics Processing Unit (GPU) 14041 and a microphone 14042, and the Graphics processor 14041 processes image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 1406. The image frames processed by the graphics processor 14041 may be stored in the memory 1409 (or other storage medium) or transmitted via the transceiving unit 1401 or the network module 1402. The microphone 14042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the transceiving unit 1401 in case of a phone call mode.

Terminal 1400 also includes at least one sensor 1405, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 14061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 14061 and/or the backlight when the terminal 1400 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer and tapping), and the like; the sensors 1405 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 1406 is used to display information input by the user or information provided to the user. The Display unit 1406 may include a Display panel 14061, and the Display panel 14061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 1407 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 1407 includes a touch panel 14071 and other input devices 14072. The touch panel 14071, also referred to as a touch screen, may collect touch operations by a user (e.g., operations by a user on or near the touch panel 14071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 14071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1410, receives a command from the processor 1410, and executes the command. In addition, the touch panel 14071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 14071, the user input unit 1407 may include other input devices 14072. In particular, the other input devices 14072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein.

Further, the touch panel 14071 may be overlaid on the display panel 14061, and when the touch panel 14071 detects a touch operation on or near the touch panel 14071, the touch operation is transmitted to the processor 1410 to determine the type of the touch event, and then the processor 1410 provides a corresponding visual output on the display panel 14061 according to the type of the touch event. Although in fig. 14, the touch panel 14071 and the display panel 14061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 14071 and the display panel 14061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 1408 is an interface to which an external device is connected with the terminal 1400. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Interface unit 1408 may be used to receive input from external devices (e.g., data information, power, etc.) and transmit the received input to one or more elements within terminal 1400 or may be used to transmit data between terminal 1400 and external devices.

The memory 1409 may be used to store software programs as well as various data. The memory 1409 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory 1409 can include high speed random access memory and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1410 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 1409 and calling data stored in the memory 1409, thereby performing overall monitoring of the terminal. Processor 1410 may include one or more processing units; preferably, the processor 1410 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1410.

The terminal 1400 may further include a power source 1411 (e.g., a battery) for supplying power to various components, and preferably, the power source 1411 may be logically connected to the processor 1410 via a power management system, so as to implement functions of managing charging, discharging, and power consumption via the power management system.

In addition, terminal 1400 includes some functional modules that are not shown, and are not described herein.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 1410, a memory 1409, and a computer program stored in the memory 1409 and capable of running on the processor 1410, where the computer program, when executed by the processor 1410, implements each process of the above-mentioned indication method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An indication method, comprising:

receiving at least one media access control element (MAC CE) carrying first indication information, wherein the MAC CE is used for indicating the activation/deactivation of a Transmission Configuration Indicator (TCI) State of N network side devices, and N is an integer greater than or equal to 2;

the first indication information includes at least one of:

a second indication field for indicating activation/deactivation of the TCI State;

wherein the first indication field comprises:

l bits are used to indicate activation/deactivation of a set of TCI State combinations/pairings, L being an integer greater than 1;

when the number of the MAC CEs is one, the second indication field at least includes:

at least one fourth indication field, each fourth indication field indicating a TCI state ID of an activated TCI state of one network side device.

2. An indication method, comprising:

sending at least one MAC CE carrying first indication information for indicating the activation/deactivation of TCI State of N network side devices, wherein N is an integer greater than or equal to 2;

the first indication information includes at least one of:

wherein the first indication field comprises:

3. The indication method according to claim 1 or 2, wherein when the number of the MAC CEs is one, the second indication field further comprises:

at least one third indication field, each third indication field corresponding to a network side device, each bit in the field for indicating the activation/deactivation of the TCI state of the network side device.

4. The indication method according to claim 1 or 2, wherein the first indication field comprises:

or

5. The indication method according to claim 1 or 2, wherein the first indication field comprises:

6. The indication method according to claim 5, wherein the sixth indication field comprises:

at least one seventh indication field, where each seventh indication field indicates an activated/deactivated TCI state ID of one network side device or a bit index of the activated/deactivated TCI state of one network side device in the MAC CE.

7. The indication method according to claim 1 or 2, characterized in that the method further comprises:

acquiring composition information of TCI State combination/pairing;

index information of TCI State combination/pairing;

number information of TCI states included in the TCI State combination/pairing;

8. The indication method according to claim 1 or 2, wherein the MAC CE further comprises at least one of:

a serving cell identity;

bandwidth part BWP identification;

joint transmission indication information;

associated information of the joint transmission;

and (4) data information.

9. The indication method according to claim 8, wherein the information related to the joint transmission comprises at least one of:

indication information whether joint transmission is adopted;

the number of network side devices for data transmission;

the number of network side equipment corresponding to the TCI state;

and the network side equipment identifier corresponding to the TCI state.

10. The indication method according to claim 8, wherein the data information comprises at least one of:

a field length of the MAC CE;

11. A terminal, comprising a processor and a transceiver,

the transceiver is used for receiving at least one MAC CE carrying first indication information and indicating the activation/deactivation of TCI states of N network side devices, wherein N is an integer greater than or equal to 2;

the first indication information includes at least one of:

wherein the first indication field comprises:

12. A network side device, comprising a processor and a transceiver,

the transceiver is used for transmitting at least one MAC CE carrying first indication information and indicating the activation/deactivation of TCI states of N network side devices, wherein N is an integer greater than or equal to 2;

the first indication information includes at least one of:

wherein the first indication field comprises:

13. A terminal, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the indication method according to any one of claims 1 and 3 to 10.

14. A network-side device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the indication method according to any one of claims 2 to 10.

15. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the indication method according to any one of claims 1 to 10.