CN111132354B

CN111132354B - Automatic TCI (trusted cryptography interface) modifying method and device, storage medium and terminal

Info

Publication number: CN111132354B
Application number: CN201811294984.3A
Authority: CN
Inventors: 邓云
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2022-10-25
Anticipated expiration: 2038-11-01
Also published as: CN111132354A

Abstract

A method and a device for automatically modifying TCI, a storage medium and a terminal are provided, the method comprises the following steps: judging whether to trigger automatic modification operation according to the working state and/or channel condition of the UE; and when the judgment result shows that the automatic modification operation is triggered, deleting the TCI of the current CORESET0, and determining the TCI of the CORESET0 after automatic modification according to a TCI mechanism for determining the CORESET0 during initial access. The scheme provided by the invention enables the UE to accurately receive the updated system message and the random access response, keeps the wireless link between the UE and the network smooth and avoids the communication interruption with the network.

Description

Automatic TCI (trusted cryptography interface) modifying method and device, storage medium and terminal

Technical Field

The invention relates to the technical field of communication, in particular to a method and a device for automatically modifying TCI, a storage medium and a terminal.

Background

According to the recent resolution passed by the third Generation Partnership Project (3 GPP) conference, the base station is supported to modify a Transmission Configuration Indicator (TCI) of a Control Resource Set0 (Control Resource Set0, referred to as core 0) through a Media Access Control (MAC) Control Element (CE). However, in practical applications, this solution may lead to the following problems:

since the CORESET0 is usually a User Equipment (User Equipment, abbreviated UE) receiving a System Information Block 1 (SIB 1) and other System Information blocks, and a control resource set of a random access response, when a base station modifies a TCI of the control resource set, the UE always uses a Synchronization Signal Block (SSB) or a Channel state Information Reference Signal (CSI-RS) modified by the base station as the TCI of the CORESET. Thus, after the base station modifies the TCI of CORESET0, when the SSB or CSI-RS signal corresponding to CORESET0 is poor or the UE cannot detect it, the UE cannot correctly receive the system message and the random access response, which results in a radio link failure of the UE and further interrupts communication with the network.

The prior art cannot effectively ensure smooth communication between the UE and the network after the TCI of the CORESET0 is modified by the base station.

Disclosure of Invention

The technical problem solved by the invention is how to ensure that the UE can accurately receive the updated system message and the random access response so as to keep the wireless link between the UE and the network smooth and avoid the communication interruption with the network.

To solve the foregoing technical problem, an embodiment of the present invention provides an automatic TCI modifying method, including: judging whether to trigger automatic modification operation according to the working state and/or channel condition of the UE; and when the judgment result shows that the automatic modification operation is triggered, deleting the TCI of the current CORESET0, and determining the TCI of the CORESET0 after automatic modification according to a TCI mechanism for determining the CORESET0 during initial access.

Optionally, the determining whether to trigger the automatic modification operation according to the working state and/or the channel condition of the UE includes: when the UE performs a BWP handover operation, it is determined that an automatic modification operation is triggered.

Optionally, the determining whether to trigger the automatic modification operation according to the working state of the UE and/or the channel condition includes: when the UE performs a random access operation, it is determined to trigger an automatic modification operation.

Optionally, the determining whether to trigger the automatic modification operation according to the working state and/or the channel condition of the UE includes: and if the signal quality of the TCI of the current CORESET0 is lower than a preset threshold, determining to trigger automatic modification operation.

Optionally, the signal quality of the TCI of the current CORESET0 refers to: the signal quality of the SSB or CSI-RS corresponding to the TCI of the current CORESET 0.

Optionally, the automatic modification method further includes: receiving indication information of a network, wherein the indication information is used for indicating whether the UE is allowed to execute the automatic modification operation.

To solve the foregoing technical problem, an embodiment of the present invention further provides an automatic TCI modifying apparatus, including: the judging module is used for judging whether to trigger automatic modification operation according to the working state and/or channel condition of the UE; and the automatic modification module deletes the TCI of the current CORESET0 when the judgment result shows that the automatic modification operation is triggered, and determines the TCI of the CORESET0 after automatic modification according to a TCI mechanism for determining the CORESET0 during initial access.

Optionally, the automatic modifying apparatus further includes: a receiving module, configured to receive indication information of a network, where the indication information is used to indicate whether to allow the UE to perform the automatic modification operation.

To solve the above technical problem, an embodiment of the present invention further provides a storage medium having stored thereon computer instructions, where the computer instructions execute the steps of the above method when executed.

In order to solve the foregoing technical problem, an embodiment of the present invention further provides a terminal, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the computer instructions to perform the steps of the foregoing method.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

the embodiment of the invention provides an automatic TCI modification method, which comprises the following steps: judging whether to trigger automatic modification operation according to the working state and/or channel condition of the UE; and when the judgment result shows that the automatic modification operation is triggered, deleting the TCI of the current CORESET0, and determining the TCI of the CORESET0 after automatic modification according to a TCI mechanism for determining the CORESET0 during initial access. Therefore, after the network modifies the TCI of CORESET0, when the UE executes specific operation or channel conditions change, the current TCI of CORESET0 can be timely and actively deleted, and the automatically modified TCI of CORESET0 is determined according to the determination mechanism of the TCI of CORESET0 during initial access, so that the UE can accurately receive updated system messages and random access responses, a wireless link between the UE and the network is kept smooth, and communication interruption with the network is avoided.

Further, the automatic modification method further comprises: receiving indication information of a network, wherein the indication information is used for indicating whether the UE is allowed to execute the automatic modification operation. Thus, the allowance or disallowance of the UE to perform the automatic modification operation may be configured by the network to enable the UE to receive updated system messages and random access responses in a manner desired by the network.

Drawings

FIG. 1 is a schematic diagram of a swept beam of the prior art;

FIG. 2 is a diagram illustrating the transmission of a synchronization signal according to the prior art;

FIG. 3 is a schematic diagram of a MAC CE of the prior art;

FIG. 4 is a flow chart of a method for automatic modification of TCI in accordance with an embodiment of the present invention;

fig. 5 is a schematic diagram of BWP partitioning for an exemplary application scenario according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an apparatus for automatically modifying a TCI according to an embodiment of the present invention.

Detailed Description

As understood by those skilled in the art, as mentioned in the background, the prior art cannot effectively ensure smooth communication between the UE and the network after the TCI of the CORESET0 is modified by the base station.

Specifically, in the fifth Generation mobile communication technology (5 th-Generation, abbreviated as 5G), the bandwidth of one cell may be very large, for example, 400MHz at the maximum, which far exceeds the cell bandwidth of 20MHz in the Long Term Evolution (LTE) technology. If all User Equipments (UE) need to access 400MHz bandwidth when accessing the network, the UE manufacturing cost is high and large power consumption is caused.

Therefore, with the idea of introducing a partial Bandwidth (BWP) in 5G, a cell may contain multiple BWPs, each BWP occupying a limited Bandwidth (including a Downlink (DL) BWP and an Uplink (UL) BWP), where at least one BWP may allow an idle UE to camp on, and the UE may receive system messages and pages from the BWP. The UE may establish a Radio Resource Control (RRC) connection through the BWP access network, and further establish a data Radio bearer to perform a service, where the BWP is called as an initially activated BWP or called as an initial BWP. The network may then configure other BWPs for the UE depending on the UE capabilities, traffic requirements, etc.

In Release 15 (Release 15, abbreviated as R15) of the protocol, the UE may have a configuration of multiple BWPs for each serving cell, but only one DL BWP and/or one UL BWP is active, i.e. the UE interacts data and signaling with the base station through the active BWP.

For each BWP, there are multiple corresponding parameter configurations, such as the location of the Physical Resource block occupied by the BWP, and the configuration of a Control Resource Set (CORESET for short), the configuration of a Physical Downlink Shared Channel (PDSCH for short), the configuration of a Physical Uplink Control Channel (PUCCH for short) (optional), the configuration of a Physical Uplink Shared Channel (PUSCH for short), the configuration of a reference signal, the configuration of a Random Access Channel (RACH) for short (optional), and the like, and the UE can apply the BWP only after knowing these configuration parameters.

In R15, for a serving cell, the base station may configure multiple BWPs for the UE, for example, 4 BWPs at most, but only one of them is an active BWP, i.e., the UE can only receive Downlink Control Information (DCI) of the base station through the BWP, the DCI is located on the CORESET, receive data from the BWP, and send data to the base station through the BWP.

On the other hand, according to the existing protocol, 5G is deployed at high frequency, wireless signals have the characteristics of good directivity and large path loss at high frequency, a large cell needs a plurality of beams (Beam) to realize complete coverage, and one Beam can only cover a limited range. A small cell may contain only one beam. Referring to fig. 1, for a cell formed by multiple beams (such as Beam 1 to Beam 8 shown in fig. 1), not all beams can be transmitted at the same time due to hardware limitation, and time-sharing transmission is required, which is called Beam Sweeping or Beam scanning (Beam Sweeping).

For a cell in a New Radio (NR, which may also be referred to as a New air interface, i.e., 5G), the transmission of synchronization signals (including primary synchronization signals and secondary synchronization signals) is transmitted within a duration of 5ms according to a certain period, such as a period of 20ms, 40ms, or 80 ms. As shown in fig. 2, a cell may transmit one or more Synchronization Signal blocks (SS blocks, abbreviated SSBs) (i.e., different beams), such as 4 SS blocks (SS Block0, SS Block 1, SS Block 2, and SS Block 3, respectively) or 8 SS blocks (SS Block0 to SS Block 7). An SS block may include Primary Synchronization Signal (PSS)/Secondary Synchronization Signal (SSs) and Physical Broadcast CHannel (PBCH). The PSS and SSS are used to identify the cell identity to the UE and enable the UE to obtain symbol-level synchronization. For cells lower than or equal to 8 SSBs, the UE may determine the index of the SSB by detecting the demodulation reference signal of the PBCH.

On active BWP, the UE may detect its DCI on the configured set of one or more control resources. For a particular set of control resources, there may be two search spaces: a common search space and a UE-specific search space.

The UE may blindly detect DCI according to a certain rule in a search space, detect DCI belonging to the UE according to a Radio Network Temporary Identifier (RNTI), and then receive data or upload data according to the DCI. One UE may have one or more RNTIs.

For the same set of control resources, the UE may have different detection periods to detect DCI located in a Common search space (Common search space) and a UE specific search space (UE specific search space). That is, the UE may not need to detect the DCI scrambled by the RNTI located in the search space every slot, and the network may configure the UE to detect the DCI in the search space periodically. The number of potential DCIs that the UE needs to detect may be one or more for each search space, and thus each search space may be represented by a search space set.

In R15, the maximum number of control resource sets that can be configured on one active BWP may be 3; the maximum number of search space sets (search space sets) on an active BWP may be 10. There may be more than 3 sets of search spaces in a control resource set.

For each control resource set, the UE first needs to know a Transmission Configuration Identifier (TCI) of the control resource set when receiving DCI.

For a UE initially accessing a serving cell and expecting to establish Radio Resource Control (RRC) connection, first, the UE obtains a System message from an initial BWP of the cell, where the System message needs to detect a PSS, an SSS, and a PBCH of the cell on the initial BWP, where the PBCH carries a Master Information Block (Master Information Block, MIB), and the MIB includes a Physical Downlink Control Channel (PDCCH) Configuration cell (PDCCH-Configuration cell) of a System message Block 1 (System Information Block 1, SIB 1), and the PDCCH cell may include Configuration Information (Control Resource set zero) of a CORESET0 that the UE detects SIB 1.

The UE can obtain a search space set (Type 0-PDCCH common search space set) for detecting SIB1 through CORESET0, and the search space set is mapped on CORESET 0. Further, other important information such as random access configuration, common PDSCH configuration, radio network identification, etc. can be obtained through SIB 1. The SIB1 may configure a control resource set, such as CORESET1, for the UE to receive the paging system message and the random access response, and a search space set (ra-search space, such as Type1-PDCCH common search space set) mapped to the paging message on the CORESET1 and the random access. If the paging message and the core set1 of the random access response may not be configured in SIB1, the UE may detect the control resource set corresponding to SIB1 to obtain the above information.

When the UE needs to establish an RRC connection, the UE may select an SSB in the cell that exceeds a threshold. For example, if the UE finds that the SSBs of the cell exceeding the threshold include SSBs 4 and SSBs 5, the UE may select the SSB5, and then determines that the random access resource corresponding to the SSB5 initiates a random access procedure according to the system message, at this time, the UE adopts the SSB5 as the TCI of the CORESET0 or the CORESET1 (the CORESET1 network may not be configured), and at this time, the UE considers that the CORESET0 and the SSBs 5 are gaussian co-location (QCL for short), that is, some channel estimation information, such as delay spread, doppler shift, and the like, obtained by the UE through detecting the SSBs 5 may be used to receive the CORESET 0. And the UE receives the random access response according to the search space set configured with the random access in the system message. And then further obtaining uplink authorization through random access response, sending an RRC request to the base station, after receiving the request, allocating resources for the UE, and sending RRC establishment to the UE. And after receiving the RRC establishment, the UE sends the RRC establishment completion to the base station by applying the resources configured by the base station. At this point the UE enters RRC connected state. At this time, a signaling radio bearer is established, and then after the security mode is activated, the base station may establish a data radio bearer with the UE, and the UE may perform a service.

After the UE enters the connected state, the base station may configure other control resource sets for the UE based on the capability of the UE and traffic requirements, and a search space mapped on the other control resource sets. The base station may configure other BWPs for the cell for the UE, as well as control resource sets located on other BWPs, etc. The base station may switch the UE from the Initial BWP (Initial BWP) to other BWPs through DCI.

For other control resource sets, the base station may modify the TCI of the CORESET through the MAC CE, e.g., the base station may modify the control resource set to have a specific CSI-RS as QCL.

For example, the format of the MAC CE may be as shown in fig. 3, which may indicate a serving cell Identification (Identification, abbreviated ID), a control resource set Identification (CORESET ID), and a TCI State Identification (TCI State ID) in two bytes (octet, abbreviated Oct).

Normally the network will not modify the TCI of CORESET0, but, as mentioned in the background, the recent 3GPP conference via resolution allows the base station to modify the TCI of CORESET0 via the MAC CE. This results in that after the TCI of the CORESET0 is modified by the base station, if the SSB or CSI-RS signal corresponding to the TCI is poor or the UE cannot detect it, the UE cannot correctly receive the system message and the random access response, so that the UE fails to receive the radio link, and further interrupts communication with the network.

To solve the foregoing technical problem, an embodiment of the present invention provides an automatic TCI modifying method, including: judging whether to trigger automatic modification operation according to the working state and/or channel condition of the UE; and when the judgment result shows that the automatic modification operation is triggered, determining the TCI of the CORESET0 after automatic modification according to the TCI mechanism for determining the CORESET0 during initial access.

Those skilled in the art understand that, with the solution of this embodiment, a set of fallback mechanism can be introduced, after the network modifies the TCI of CORESET0, when the UE performs a specific operation or a channel condition changes, the UE can timely and actively delete the current TCI of CORESET0, and determine the automatically modified TCI of CORESET0 according to the determination mechanism for the TCI of CORESET0 during initial access, so as to ensure that the UE can accurately receive updated system messages and random access responses, keep the wireless link between the UE and the network clear, and avoid communication interruption with the network.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

FIG. 4 is a flow chart of a method for automatic modification of TCI in accordance with an embodiment of the present invention. The scheme of the embodiment can be applied to the user equipment side, such as performed by the UE. The scheme of the embodiment can be applied to a scenario in which the TCI of the core set0 of the UE needs to be optimized after being modified by the network.

Specifically, in this embodiment, the method for automatically modifying the TCI may include the following steps:

step S101, judging whether to trigger automatic modification operation according to the working state and/or channel condition of the UE;

and step S102, deleting the TCI of the current CORESET0 when the judgment result shows that the automatic modification operation is triggered, and determining the TCI of the CORESET0 after the automatic modification according to the TCI mechanism for determining the CORESET0 during the initial access.

Otherwise, that is, when the determination result indicates that the automatic modification operation is not triggered, the step S101 may be executed again until the determination result of the step S101 is affirmative.

In a typical application scenario, referring to fig. 5, it is assumed that a cell is composed of 4 sub-bands (i.e., BWPs), which are BWP0 to BWP3, respectively. The initial subband is BWP0, the idle UE resides on the subband, and the base station sends a System Information (SI), a paging message, and the like on the subband. The UE first establishes an RRC connection through the initial BWP access network. The network configures the UE with multiple BWPs and corresponding configuration parameters located on each BWP, such as a set of control resources on each BWP, and a search space mapped to the corresponding set of control resources.

Further, for the initial BWP, the UE may have a CORESET0, CORESET1, etc. configuration.

For other BWPs, the BWP may or may not overlap with the initial BWP, or the BWP may completely contain the initial BWP, e.g., 2 times the bandwidth of the initial BWP. The base station may configure the UE with an appropriate BWP depending on the capability of the UE and scheduling requirements. Other BWPs also have corresponding control resource set configurations, etc.

In one non-limiting embodiment, the operating state may include: whether to execute the BWP switching operation, whether to execute the random access operation, and the like require an operation of performing uplink and/or downlink data transmission using the TCI of CORESET 0.

In a preferred example, the step S101 may include: when the UE performs a BWP handover operation, it is determined that an automatic modification operation is triggered. Wherein the BWP switching operation may be for switching to an initial BWP or a default BWP, which may be determined by a network configuration.

Still taking the scenario shown in fig. 5 as an example, assuming that the UE currently operates at BWP1 (including downlink BWP1 and uplink BWP 1), the base station modifies the TCI of CORESET0 through the MAC CE.

Since the TCI of CORESET0 has been modified by the base station, according to the configuration of the base station, the UE considers CORESET0 and a specific reference signal, such as a certain SSB or a certain CSI-RS, to be QCL, and at this time, the UE receives the search space on CORESET0 according to the configuration of the base station.

On the other hand, since the UE is operating on the BWP, the UE may start a BWP activity timer (BWP-inactivity timer), and when the timer expires, the UE needs to switch to the initial BWP, i.e., BWP0.

After the UE switches back to the initial BWP, since the channel condition of BWP0 may be different from the channel condition of BWP1 where the UE was modified the TCI of CORESET0, if the UE detects the search space on CORESET0 according to the TCI modified by the base station before, it is likely that the UE cannot receive the updated system message or the random access response when initiating the random access because the transmission characteristics of different beams are different.

Therefore, after the BWP activity timer expires, the UE performs the BWP switching operation to switch to the initial BWP or the default BWP, at this time, the UE may perform step S102 to delete the TCI previously configured for CORESET0 by the network and recover to the mechanism for determining the TCI of CORESET0 at this time according to the initial access state of the UE, that is, recover to the mechanism for determining the TCI of CORESET0 according to the selected SSB.

Specifically, the TCI of CORESET0 at this time can be determined according to the TCI mechanism of CORESET0 selected by SSB at the time of initial access. That is, the UE considers that the DeModulation Reference Signal (DMRS) of the PDCCH received at CORESET0 at the time of initial access and the selected SSB are QCL. At this time, after the UE switches back to the initial BWP or the default BWP, the UE may select a certain SSB, where the signal quality exceeds a preset threshold, and the UE may initiate a random access procedure according to the random access resource corresponding to the SSB, and the UE regards the SSB as the TCI of CORESET 0.

In another preferred example, the step S101 may include: when the UE performs a random access operation, it is determined to trigger an automatic modification operation.

Still taking the scenario shown in fig. 5 as an example, assuming that the UE currently operates in BWP2, BWP2 may be configured with random access resources, and at this time, the UE may initiate a random access procedure at BWP 2; if BWP2 does not configure the random access resource, the UE needs to switch to the initial BWP to initiate the random access procedure.

For the above two cases, to ensure that the UE can receive the random access response at the correct location, the UE may perform the step S102 to determine the TCI of the CORESET0 at this time according to the mechanism that the selected SSB is used as the TCI of the CORESET0 when the initial access is resumed, so as to ensure that the random access procedure is successful.

In another non-limiting embodiment, when the channel condition of the network changes, the UE may also perform the step S102 to actively modify the TCI of the core set0 configured by the base station to be the TCI mechanism of the core set0 according to the selected SSB when the UE initially accesses.

Specifically, the step S101 may include: if the signal quality of the TCI of the current CORESET0 is lower than a preset threshold, determining that the automatic modification operation is triggered.

Preferably, the signal quality of the TCI of the current CORESET0 may refer to: the signal quality of the SSB or CSI-RS corresponding to the TCI of the current CORESET0, i.e. the current CORESET0 uses the SSB or the CSI-RS as QCL. Wherein, the TCI of the current CORESET0 refers to the TCI of the CORESET0 modified by the base station.

For example, if the UE in the connected state detects that the signal quality of the SSB or CSI-RS associated with the TCI of the current CORESET0 is lower than the preset threshold, the UE may perform the step S102 to actively recover the TCI of CORESET0 at this time according to the mechanism of using the selected SSB as the TCI of CORESET0 at the time of initial access.

Specifically, the UE may detect the signal quality of the SSB or CSI-RS for a period of time, and perform the automatic modification operation when the signal quality is continuously lower than the preset threshold.

Preferably, the preset threshold may be used to characterize the minimum standard signal quality required by the UE to successfully receive the system message and the random access response, and may be set by negotiation of the network, the UE, or both.

In a non-limiting embodiment, before executing step S101, the automatic modification method of this embodiment may further include: receiving indication information of a network, wherein the indication information is used for indicating whether the UE is allowed to execute the automatic modification operation.

Thus, the permission or non-permission of the UE to execute the automatic modification operation can be configured by the network, so that the UE can realize the updating process of the TCI of the CORESET0 in a manner expected by the network, and the behavior of the UE is better controlled.

For example, the indication information may be RRC signaling.

Specifically, the network or the base station of the network may configure through RRC signaling whether to allow the UE to perform the scheme of the present embodiment. Further, when the network configures that the UE can perform the automatic modification operation through RRC signaling, the UE may perform the steps S101 and S102, so as to delete the TCI of the CORESET0 configured by the network when initiating random access, switching BWP, or detecting that the signal quality of the SSB or CSI-RS corresponding to the TCI of the current CORESET0 is lower than a preset threshold, and restore the TCI to the TCI mechanism that determines the TCI of the automatically modified CORESET0 according to the initial access using the selected SSB as the CORESET 0.

Therefore, by adopting the scheme of the embodiment, after the network modifies the TCI of CORESET0, when the UE executes specific operation or channel conditions change, the TCI of CORESET0 can be timely and actively restored to the state that the TCI of CORESET0 is determined by taking the selected SSB as the TCI mechanism of CORESET0 during initial access, so that the UE can accurately receive updated system messages and random access responses, a wireless link between the UE and the network is kept, and communication interruption with the network is avoided.

Fig. 6 is a schematic structural diagram of an automatic TCI modifying apparatus according to an embodiment of the present invention. Those skilled in the art will understand that the automatic modification apparatus 2 of the present embodiment can be used to implement the method technical solution described in the above embodiment shown in fig. 4.

Specifically, in this embodiment, the automatic modification apparatus 2 may include: a judging module 21, configured to judge whether to trigger an automatic modification operation according to a working state and/or a channel condition of the UE; and the automatic modification module 22 deletes the current TCI of the CORESET0 when the judgment result shows that the automatic modification operation is triggered, and determines the TCI of the CORESET0 after automatic modification according to the TCI mechanism for determining the CORESET0 during initial access.

In one non-limiting embodiment, the determining module 21 may include: the first determination sub-module 211 determines that an automatic modification operation is triggered when the UE performs a BWP handover operation.

In one non-limiting embodiment, the determining module 21 may include: a second determination sub-module 212 determines that an automatic modification operation is triggered when the UE performs a random access operation.

In one non-limiting embodiment, the determining module 21 may include: a third determining submodule 213, configured to determine to trigger an automatic modification operation if the signal quality of the TCI of the current CORESET0 is lower than a preset threshold.

Preferably, the signal quality of the TCI of the current CORESET0 may refer to: the signal quality of the SSB or CSI-RS corresponding to the TCI of the current CORESET 0.

In one non-limiting embodiment, the automatic modification apparatus 2 may further include: a receiving module 23, configured to receive indication information of a network, where the indication information may be used to indicate whether to allow the UE to perform the automatic modification operation.

For more details on the working principle and working mode of the automatic modifying apparatus 2, reference may be made to the related description in fig. 4, which is not described herein again.

Further, the embodiment of the present invention further discloses a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the technical solution of the method described in the embodiment shown in fig. 4 is executed. Preferably, the storage medium may include a computer-readable storage medium such as a non-volatile (non-volatile) memory or a non-transitory (non-transient) memory. The storage medium may include ROM, RAM, magnetic or optical disks, etc.

Further, an embodiment of the present invention further discloses a terminal, which includes a memory and a processor, where the memory stores a computer instruction capable of running on the processor, and the processor executes the technical solution of the method in the embodiment shown in fig. 4 when running the computer instruction. Preferably, the terminal may be a User Equipment (UE).

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected by one skilled in the art without departing from the spirit and scope of the invention, as defined in the appended claims.

Claims

1. A method for automatic modification of TCI, comprising:

judging whether to trigger automatic modification operation according to the working state and/or channel condition of the UE;

and when the judgment result shows that the automatic modification operation is triggered, deleting the TCI of the current CORESET0, and determining the TCI of the CORESET0 after automatic modification according to a TCI mechanism for determining the CORESET0 during initial access.

2. The method according to claim 1, wherein said determining whether to trigger an automatic modification operation according to the operating status of the UE and/or the channel condition comprises:

when the UE performs a BWP handover operation, it is determined that an automatic modification operation is triggered.

3. The method according to claim 1, wherein said determining whether to trigger an automatic modification operation according to the operating status of the UE and/or the channel condition comprises:

when the UE performs a random access operation, it is determined to trigger an automatic modification operation.

4. The method according to claim 1, wherein said determining whether to trigger an automatic modification operation according to the operating status of the UE and/or the channel condition comprises:

and if the signal quality of the TCI of the current CORESET0 is lower than a preset threshold, determining to trigger automatic modification operation.

5. The automatic modification method according to claim 4, wherein the signal quality of TCI of the current CORESET0 is: the signal quality of the SSB or CSI-RS corresponding to the TCI of the current CORESET 0.

6. The automatic modification method according to claim 1, further comprising:

receiving indication information of a network, wherein the indication information is used for indicating whether the UE is allowed to execute the automatic modification operation.

7. An apparatus for automatic modification of a TCI, comprising:

the judging module is used for judging whether to trigger automatic modification operation according to the working state and/or channel condition of the UE;

and the automatic modification module deletes the TCI of the current CORESET0 when the judgment result shows that the automatic modification operation is triggered, and determines the TCI of the CORESET0 after automatic modification according to the TCI mechanism for determining the CORESET0 during initial access.

8. The automatic modifying apparatus according to claim 7, further comprising:

a receiving module, configured to receive indication information of a network, where the indication information is used to indicate whether to allow the UE to perform the automatic modification operation.

9. A storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the method of any one of claims 1 to 6.

10. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 1 to 6.