WO2021056336A1

WO2021056336A1 - Method and apparatus for determining cell beam failure recovery completion state

Info

Publication number: WO2021056336A1
Application number: PCT/CN2019/108176
Authority: WO
Inventors: 石聪; 尤心
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2021-04-01
Also published as: CN113785635A; CN113785635B

Abstract

Disclosed in the present application are a method and an apparatus for determining a cell beam failure recovery completion state. The method comprises: determining to start a beam failure recovery (BFR) process in a secondary cell, and triggering a media access control (MAC) control element (CE), the MAC CE being used in the secondary cell to perform the BFR process. The MAC CE is transmitted. After the MAC CE is transmitted, a first timer is started. On the basis of the first timer, a BFR completion state for the secondary cell is determined. Upon determining to start a BFR process in a secondary cell, a MAC CE is triggered, the MAC CE is transmitted, and then the BFR process is performed on the basis of the MAC CE, after which a first timer is started, and on the basis of the first timer, a BFR completion state for the secondary cell is determined. Thus, it is confirmed whether the BFR of the secondary cell was successful, solving the technical problem of not being able to determine whether a BFR process has been successfully completed.

Description

Method and device for determining completion status of cell beam failure recovery

Technical field

This application relates to the field of communication technologies, and in particular to a method and device for determining the completion status of cell beam failure recovery.

Background technique

The main principle of beam failure recovery (BFR) is to help gNB (5G NodeB, 5G base station) or UE (User Equipment) adjust the current failed beam to other available beams according to the beam measurement results, thereby avoiding beam misalignment Caused by frequent wireless link failures. In the BFR for the primary cell (PCell) and the primary and secondary cell (PSCell), the UE can tell the base station which downlink transmission beam to use to send RAR (Random Access Response) through random access to resume downlink transmission Beam. In the BFR of the secondary cell (SCell), the UE sends SCell beam failure (secondary cell beam failure) indication information to the network side, including through SR (Scheduling Request) or MAC (Media Access Control) ) The control element (Control Element, CE) instructs the base station to send the SCell ID (Identity Document) of the BFR and the beam index (beam index) that can be used for transmission.

However, in the existing BFR, after successfully sending the MAC CE to the base station and instructing the base station to generate SCell BFR, the UE cannot determine that the SCell BFR process has been successfully completed, so there is a technical problem that it cannot determine whether the BFR process is successfully completed.

Summary of the invention

The present application provides a method and device for determining the completion status of cell beam failure recovery, so as to solve the technical problem that it is impossible to determine whether the BFR process is successfully completed.

In the first aspect, specific implementations of this application provide a method for determining the completion status of cell beam failure recovery, including:

Determine to start the beam failure recovery BFR process of the secondary cell, and trigger a media access control MAC control unit CE, which is used by the secondary cell to perform the BFR process.

Transmit MAC CE.

After the MAC CE is transmitted, the first timer is started.

According to the first timer, the BFR completion status of the secondary cell is determined.

In the second aspect, specific implementations of the present application provide an apparatus for determining the completion status of cell beam failure recovery, including:

The trigger module is used to determine to start the beam failure recovery BFR process of the secondary cell, and trigger a media access control MAC control unit CE, which is used for the secondary cell to perform the BFR process.

Transmission module, used to transmit MAC CE.

The timer start module is used to start the first timer after the MAC CE is transmitted.

The determining module is used to determine the BFR completion status of the secondary cell according to the first timer.

In a third aspect, specific implementations of the present application provide a terminal device. The terminal device includes a processor, a memory, and a transmission program that can be run on the processor is stored in the memory. When the processor executes the program, any one of the above determinations is implemented. The method of the completion status of cell beam failure recovery.

In a fourth aspect, specific embodiments of the present application provide a computer-readable storage medium that stores a computer program, where the computer program implements any one of the aforementioned methods for determining the completion status of cell beam failure recovery when the computer program is executed.

In a fifth aspect, specific implementations of this application provide a computer program product. The computer program product is stored in a non-transitory computer-readable storage medium. When the computer program is executed, any one of the above-mentioned methods for determining the completion status of cell beam failure recovery is realized.

In a sixth aspect, specific embodiments of the present application provide a chip, which includes a processor, configured to call and run a computer program from a memory, and a device installed with the chip executes any one of the above to determine the completion status of cell beam failure recovery Methods.

In a seventh aspect, specific implementations of the present application provide a computer program that, when executed, implements any one of the above-mentioned methods for determining the completion status of cell beam failure recovery.

The technical solutions provided by the specific implementations of this application may include the following beneficial effects:

When it is determined to start the beam failure recovery BFR process of the secondary cell, it triggers a MAC control unit CE, transmits the MAC CE, and then performs the BFR process according to the MAC CE, starts the first timer, and confirms the BFR of the secondary cell according to the first timer Completion status. This confirms whether the BFR of the secondary cell is successful, and solves the technical problem that it is impossible to judge whether the BFR process is successfully completed.

It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the application.

Description of the drawings

The drawings herein are incorporated into the specification and constitute a part of the specification, show specific implementations that conform to the application, and are used together with the specification to explain the principle of the application.

FIG. 1 is a network architecture diagram of a communication system that may be applied in the specific embodiments of this application;

Fig. 2 is a flowchart of a method for determining the completion status of cell beam failure recovery according to a specific embodiment of the present application;

FIG. 3 is a flowchart of step 110 in a specific embodiment corresponding to FIG. 2 in a specific embodiment;

FIG. 4 is a flowchart of step 111 in a specific embodiment corresponding to FIG. 3 in a specific embodiment;

FIG. 5 is a flowchart of a method for determining the completion status of cell beam failure recovery according to a specific implementation of the present application;

6 is a device block diagram for implementing a method for determining the completion status of cell beam failure recovery according to various embodiments of the present disclosure;

FIG. 7 is a device block diagram of a trigger module 210 in a specific embodiment corresponding to FIG. 6 in a specific embodiment;

8 is a block diagram of an apparatus for implementing another method for determining the completion status of cell beam failure recovery according to various embodiments of the present disclosure;

FIG. 9 is a device block diagram for implementing another method for determining the completion status of cell beam failure recovery according to various embodiments of the present disclosure;

FIG. 10 is a block diagram of an apparatus in a specific implementation of the determining module 270 in the specific implementation corresponding to FIG. 6;

FIG. 11 is a schematic diagram of the hardware structure of a terminal device for implementing a method for determining a completion status of a cell beam failure recovery according to various embodiments of the present disclosure.

detailed description

Here, an exemplary embodiment will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements. The implementation manners described in the following exemplary specific implementation manners do not represent all implementation manners consistent with the specific implementation manners of the present application. On the contrary, they are merely examples of methods and devices consistent with some aspects of the application as detailed in the appended claims. Based on the specific implementations in this application, all other specific implementations obtained by those skilled in the art without creative work shall fall within the protection scope of this application.

Figure 1 is a system architecture of a communication system that may be applied in the following specific implementations of this application. The system architecture includes: base station A and user terminal B.

The process of data transmission from base station A to user terminal B can be carried out through the beam (beam). During the process of data transmission from base station A to user terminal B, beam failure will occur. At this time, the BFR process is required. Come to restore beam. For the BFR process on the PCell or PSCell, the user terminal B tells the base station A which downlink transmission beam to use to transmit the RAR through random access, so as to restore the downlink transmission beam. The preamble of NR RA (New Radio Random Access) is configured by SSB (Synchronization Signal Block). The UE first compares RSRP (Reference Signal Received Power, reference signal received power). To select the SSB/CSI-RS (Channel Status Indicator Reference Signal) index that satisfies the threshold, where there is a link relationship between the SSB and the CSI-RS, and the corresponding RA on the SSB is used. The preamble and PRACH (Physical Random Access Channel) resources are used to send the Msg1 (first message), that is, after the gNB receives the preamble of the RA, it knows which SSB is used to feed back the RAR.

In the BFR for SCell, the UE sends the SCell beam failure indication information to the network side, including the Scell ID that instructs the base station to send the BFR through the SR or MAC (Media Access Control) control unit and the Scell ID that can be used for transmission beam index.

However, after the BFR process starts, the user terminal B cannot determine whether the SCell BFR process has been successfully completed. The following specific implementation manners of this application will describe in detail how to ensure that the user terminal B can determine whether the BFR process is successfully completed during the BFR process of the SCell of the base station A.

In this system architecture, the example communication system can be Global System for Mobile communications (GSM), Code Division Multiple Access (CDMA) system, Time Division Multiple Access (TDMA) ) System, Wideband Code Division Multiple Access (Wireless, WCDMA), Frequency Division Multiple Access (Frequency Division Multiple Addressing, FDMA) system, Orthogonal Frequency-Division Multiple Access (OFDMA) system , Single carrier FDMA (SC-FDMA) system, General Packet Radio Service (GPRS) system, LTE (Long Term Evolution) system, 5G (5th-Generation, fifth-generation mobile communication technology) NR (NR Radio Access, new wireless access) system and other such communication systems. This example communication system specifically includes a network-side device and a terminal. When the terminal accesses the mobile communication network provided by the network-side device, the terminal and the network-side device can be connected through a wireless link. The communication connection mode can be a single connection mode or Dual connection mode or multiple connection mode, but when the communication connection mode is single connection mode, the network side device can be an LTE base station or an NR base station (also known as a gNB base station). When the communication mode is dual connection mode (specifically, it can be through carrier aggregation CA technology is implemented, or multiple network-side devices are implemented), and when the terminal is connected to multiple network-side devices, the multiple network-side devices may be the primary base station MCG and the secondary base station SCG, and the base stations perform data return through the backhaul link. According to reports, the primary base station may be an LTE base station, and the secondary base station may be an LTE base station, or the primary base station may be an NR base station, and the secondary base station may be an LTE base station, or the primary base station may be an NR base station and the secondary base station may be an NR base station. The receiving-side RLC entity described in the specific embodiments of this application may be a terminal or software (such as a protocol stack) and/or hardware (such as a modem) in the terminal. Similarly, the transmitting-side RLC entity may be a network-side device or a network-side device Software (e.g. protocol stack) and/or hardware (e.g. modem) in the

In the specific embodiments of this application, the terms "network" and "system" are often used interchangeably, and those skilled in the art can understand their meaning.

The user terminals involved in the specific embodiments of this application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment ( User Equipment (UE), mobile station (Mobile Station, MS), terminal device (terminal device), etc. For ease of description, the devices mentioned above are collectively referred to as terminals.

In addition, the terms "system" and "network" in this article are often used interchangeably in this article. This article

The term "and/or" in the term "and/or" is only an association relationship that describes associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone These three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

It should be understood that in the specific implementation of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information.

Fig. 2 is a flowchart of a method for determining the completion status of cell beam failure recovery according to a specific embodiment of the present application. As shown in Figure 2, the method for determining the completion status of cell beam failure recovery is applied to a user terminal, and it may include the following steps:

In step 110, it is determined to start the beam failure recovery BFR process of the secondary cell, and trigger a media access control MAC control unit CE.

Among them, the physical layer determines whether the corresponding PDCCH (Physical Downlink Control Channel) meets the preset threshold by measuring the CSI-RS and/or SSB. If the preset threshold is not met, it reports a beam failure to the MAC. When the reported beam failure reaches the configured maximum value, the UE considers the beam failure and initiates a random access procedure to perform BFR.

When the UE confirms that the BFR process will occur on the secondary cell (SCell), or after the BFR process occurs, it triggers a BFR MAC control element (CE). The MAC CE includes the secondary cell index (SCell index) where the BFR occurred and the The transmitted beam index (beam index) is used to perform the BFR process of the secondary cell. The SCell index includes the information of the SCell where the beam failed, including the ID of the SCell where the beam failed, and the beam index includes the information of the beam that meets the threshold, that is, the beam that meets the preset threshold, and is used to perform the BFR process through the beam.

In step 130, the MAC CE is transmitted.

Among them, after triggering the MAC CE, the UE transmits the triggered MAC CE on the uplink resource.

In step 150, after the MAC CE is transmitted, the first timer is started.

In step 170, the BFR completion status of the secondary cell is determined according to the first timer.

Among them, after the UE transmits the MAC CE, the base station performs the BFR process according to the SCell index and beam index of the MAC CE. At this time, the UE starts the first timer and confirms the BFR completion status of the SCell according to the first timer. Whether the BFR process of the SCell is successfully completed. The first timer for confirming the completion of the BFR of the SCell may use an existing timer or a timer configured by the network. The first timer may be one or multiple.

This specific implementation mode realizes the confirmation of whether the BFR of the secondary cell is successful, and solves the technical problem that it is impossible to judge whether the BFR process is successfully completed.

FIG. 3 is a flowchart of step 110 in a specific embodiment corresponding to FIG. 2 in a specific embodiment. As shown in FIG. 3, this step 110 may include the following steps:

In step 111, the number of beam failure instances of the secondary cell is determined.

Among them, the physical layer determines whether the corresponding PDCCH quality meets the preset threshold by measuring CSI-RS and/or SSB (that is, comparing the assumed BLER (block error rate, block error rate) with the preset threshold). If beam failure is detected, then Report a beam failure instance to the MAC, so as to determine the number of beam failure instances of the secondary cell according to the beam failure instance.

In step 113, if the number of beam failure instances of the secondary cell is greater than or equal to the preset threshold, it is determined to start the BFR process of the secondary cell.

Wherein, if the number of beam failure instances in the secondary cell is greater than or equal to the preset threshold, it is considered that a beam failure has occurred, and a random access procedure is initiated. The UE selects a new beam that meets the preset threshold through CSI-RS and/or SSB, and if it does not select a new beam that meets the conditions, it performs competitive random access. After the new beam is obtained, the beam index of the new beam is obtained, which is used to find a beam that can be transmitted when performing BFR, so as to complete the BFR process. At this time, the UE can select a PRACH corresponding to a new beam to initiate transmission, or report the new beam it has selected through PUCCH (Physical Uplink Control Channel) to determine to start the BFR process of the secondary cell.

This specific implementation implements the process of determining to start the BFR of the secondary cell.

FIG. 4 is a flowchart of step 111 in a specific embodiment corresponding to FIG. 3 in a specific embodiment. As shown in FIG. 4, this step 111 may include the following steps:

In step 1111, a third timer is started.

In step 1113, the number of beam failure instances of the secondary cell during the operation of the third timer is determined.

Among them, for a MAC entity, whenever the physical layer reports a beam failure instance, the UE adds one to the count value of the beam failure counter and starts a third timer. In a specific embodiment, the third timer is beamFailureDetectionTimer (beam Failure detection timer), the count value of the beam failure counter is the number of beam failure instances, and the count value of the beam failure counter is used to obtain the number of beam failure instances during the operation of the third timer.

In this specific implementation manner, the third timer is used to determine the number of beam failure instances.

In an exemplary embodiment, step 130 corresponding to FIG. 2 may include the following steps:

The MAC CE is transmitted on the first uplink resource.

Among them, the first uplink resource is an uplink resource used to transmit MAC CE, and this specific embodiment realizes MAC CE transmission on the first uplink resource.

FIG. 5 is a flowchart of a method for determining the completion status of cell beam failure recovery according to a specific implementation of the present application. As shown in Figure 5, the method includes:

Step 130 in the specific implementation manner corresponding to FIG. 2 above includes step 131, step 132, step 133, step 134, and step 135 in the specific process of another embodiment:

In step 131, it is determined whether there are available uplink resources.

Among them, the available uplink resource means that the UE can use the uplink resource to transmit MAC CE, that is, the UE has time to perform the LCP (Link Control Protocol, Link Control Protocol) process. The available uplink resources may be resources obtained by dynamic authorization, or resources obtained by configuration authorization. The available uplink resources can be any uplink resources on a serving cell, including Scells where BFR occurs.

In step 132, the MAC CE is transmitted on the first uplink resource.

Wherein, if there are currently available uplink resources, the available uplink resources include the first uplink resource, which is performed through the first uplink resource.

In step 133, if there is no available uplink resource, it is determined whether an available BFR SR resource is configured.

In step 134, if available BFR SR resources are configured, the BFR first scheduling request SR is sent to the network side, and the first message sent by the network side according to the BFR first SR is received, and the first message contains the first uplink Resource information, and transmit MAC CE on the first uplink resource.

Among them, if there are no available uplink resources in any serving cell, the UE determines whether the network is currently configured with available BFR SR resources. If BFR SR resources are configured, the UE triggers the first scheduling request SR, and the first The BFR first SR is sent on the PUCCH corresponding to the SR resource to request uplink scheduling resources. After receiving it, the network side sends a first message according to the BFR first SR to allocate uplink resources to the UE. The allocated uplink resources include the first uplink resource. The UE receives the first message sent by the network side according to the first SR of the BFR, and the message contains the information of the first uplink resource, so as to transmit the MAC CE on the first uplink resource according to the information of the first uplink resource.

In step 135, if there is no available BFR SR resource configured, the primary cell initiates a contention-based random access CB RACH process, and receives a second message sent by the network side according to the CB RACH. The second message includes the first uplink Resource information, and transmit MAC CE on the first uplink resource.

Among them, if no available BFR SR resources are currently configured, the UE initiates a CB RACH (Contention-based Random Access Channel) on the primary cell (PCell) for uplink transmission and requests for uplink scheduling Resources, the network side sends a second message according to the CB RACH to allocate uplink resources to the UE, and the allocated uplink resources include the first uplink resource. The UE receives the second message sent by the network side according to the CB RACH, and the message contains the information of the first uplink resource, so as to transmit the MAC CE on the first uplink resource according to the information of the first uplink resource.

In step 136, if there are no available uplink resources and no available BFR SR resources, select the scheduling request configuration corresponding to the logical channel with the highest logical channel priority, send the BFR second SR to the network side, and receive the network The third message sent by the side according to the second SR of the BFR, the third message contains the information of the first uplink resource, and the MAC CE is transmitted on the first uplink resource.

Among them, if no available BFR SR resources are currently configured, the UE selects the SR configuration corresponding to the logical channel with the highest logical channel priority to trigger the second SR, and sends the second SR on the PUCCH corresponding to the SR resource that triggered the second SR. SR, requesting uplink scheduling resources. After receiving it, the network side sends a third message according to the BFR second SR to allocate uplink resources to the UE. The allocated uplink resources include the first uplink resource. The UE receives the third message sent by the network side according to the second SR of the BFR, and the message contains the information of the first uplink resource, so as to transmit the MACCE on the first uplink resource according to the information of the first uplink resource. In an exemplary embodiment, the MAC CE is transmitted on the first physical uplink shared channel PUSCH.

In step 150, after the MAC CE is transmitted, the first timer is started.

Step 170 in the specific implementation manner corresponding to FIG. 2 above includes step 171, step 172, step 173, and step 174 in the specific flow of another embodiment:

Wherein, in step 171, during the operation of the first timer, the HARQ process corresponding to the first PUSCH is monitored.

In step 172, the BFR completion status of the secondary cell is determined according to the monitoring result of the HARQ process.

In step 173, if the retransmission schedule of the HARQ process or the new transmission schedule of the HARQ process is not monitored during the operation of the first timer, it is determined that the BFR of the secondary cell is completed.

Wherein, the first timer includes a discontinuous reception uplink retransmission timer drx-RetransmissionTimerUL and a timer configured on the network side.

When the first timer is the discontinuous reception uplink retransmission timer drx-RetransmissionTimerUL, the second timer is started, and after the second timer expires, the first timer is started. The second timer includes a discontinuous reception hybrid automatic repeat request uplink delay timer drx-HARQ-RTT-TimerUL. Among them, the first PUSCH (Physical Uplink Shared Channel) carrying MAC and the first symbol (symbol) after CE starts the second timer drx-HARQ-RTT-TimerUL, and the second timer defines the slave The time interval from the uplink data packet to the retransmission of the data packet is used to determine when to start the timer related to the extension of the active period.

After the second timer drx-HARQ-RTT-Timer UL expires, the first timer drx UL retransmission timer is started. This timer defines the longest waiting time for the UE to wait for uplink retransmission in the active period. If the timer expires and the UE still does not receive the uplink retransmission scheduling instruction, the UE does not continue to monitor.

During the operation of the first timer drx UL retransmission timer, monitor the retransmission scheduling of the HARQ (Hybrid Automatic Repeat-reQuest) process corresponding to the first PUSCH resource. If the retransmission scheduling of the HARQ process is not monitored or If the new transmission schedule of the HARQ process corresponding to the first PUSCH resource is monitored, it means that the UE considers that the SCell BFR process is successfully completed. If the retransmission schedule of the HARQ process is monitored during the operation of the first timer and/or the HARQ process is not monitored If the new transmission scheduling is performed, it is determined that the BFR of the secondary cell fails.

When the first timer is a timer configured on the network side, the first symbol (symbol) after the first PUSCH carries the MAC CE starts the first timer.

During the operation of the timer configured on the network side of the first timer, the UE monitors the retransmission schedule of the HARQ process corresponding to the first PUSCH resource. If the retransmission schedule of the HARQ process is not monitored, or the HARQ corresponding to the first PUSCH resource is monitored The new transmission scheduling of the process means that the UE considers the SCell BFR process to be successfully completed. If the retransmission scheduling of the HARQ process is monitored during the operation of the first timer and/or the new transmission scheduling of the HARQ process is not monitored, the secondary transmission schedule is determined The BFR of the cell failed.

In step 174, if the retransmission scheduling of the HARQ process is monitored during the operation of the first timer, the MAC CE is retransmitted on the first uplink resource.

Among them, if the retransmission schedule of the HARQ process is monitored during the running of the first timer, that is, the UE receives the retransmission schedule of the HARQ process corresponding to the first PUSCH resource, it indicates that the BFR process is not completed, and the UE is in the first uplink at this time. The MAC CE or the data with the MAC CE is retransmitted on the resource to continue the BFR process.

In this specific implementation manner, in the BFR of the SCell, the retransmission scheduling of the HARQ process corresponding to the first PUSCH resource is monitored according to the first timer, and the BFR completion status of the secondary cell is determined according to the monitoring result of the HARQ process, thereby solving the inability to determine The technical question of whether the BFR process was successfully completed.

In an exemplary embodiment, the available uplink resources can perform a link control protocol procedure (LCP).

In an exemplary embodiment, the available uplink resources are resources obtained by dynamic authorization or resources obtained by configuration authorization.

In an exemplary embodiment, the available uplink resources are uplink resources on any serving cell, and the serving cell includes a secondary cell where BFR occurs.

Fig. 6 is an apparatus block diagram for implementing a method for determining a completion status of a cell beam failure recovery according to various embodiments of the present disclosure. The device executes all or part of the steps of the method for determining the completion status of cell beam failure recovery shown in any one of FIG. 2. As shown in FIG. 6, the device includes but not limited to: a trigger module 210, a transmission module 230, and a timer start module 250 and determining module 270.

The triggering module 210 is configured to determine to start the beam failure recovery BFR process of the secondary cell, and trigger a media access control MAC control unit CE, which is used for the secondary cell to perform the BFR process.

The transmission module 230 is used to transmit MAC CE.

The timer starting module 250 is used to start the first timer after the MAC CE is transmitted.

The determining module 270 is configured to determine the BFR completion status of the secondary cell according to the first timer.

FIG. 7 is an apparatus block diagram of the trigger module 210 in a specific embodiment corresponding to FIG. 6 in a specific embodiment. As shown in FIG. 7, the triggering module 210 includes but is not limited to: a number determining unit 211 and a start determining unit 213.

The number determining unit 211 is configured to determine the number of beam failure instances of the secondary cell.

The activation determination unit 213 is configured to determine to activate the BFR process of the secondary cell if the number of beam failure instances of the secondary cell is greater than or equal to the preset threshold.

In an exemplary specific implementation, the number determining unit 211 is further configured to:

Start the third timer.

Determine the number of beam failure instances of the secondary cell during the running of the third timer.

In an exemplary embodiment, the transmission module 230 is further used for:

The MAC CE is transmitted on the first uplink resource.

FIG. 8 is an apparatus block diagram for implementing another method for determining the completion status of cell beam failure recovery according to various embodiments of the present disclosure. The device performs all or part of the steps of any method for determining the completion status of cell beam failure recovery shown in FIG. 2. As shown in FIG. 8, the device further includes, but is not limited to: a scheduling module 330 and a receiving module 350.

The scheduling module 330 is configured to send a BFR first scheduling request SR to the network side if there is no available uplink resource.

The receiving module 350 is configured to receive a first message sent by the network side according to the BFR first SR, where the first message includes the information of the first uplink resource.

FIG. 9 is an apparatus block diagram for implementing another method for determining the completion status of cell beam failure recovery according to various embodiments of the present disclosure. The device performs all or part of the steps of any method for determining the completion status of cell beam failure recovery shown in FIG. 2. As shown in FIG. 9, the device further includes, but is not limited to: a random access module 310 and a receiving module 350.

The random access module 310 is configured to initiate a contention-based random access CB RACH process in the primary cell if there are no available uplink resources and no available BFR SR resources.

The receiving module 350 is configured to receive a second message sent by the network side according to the CB RACH, where the second message includes the information of the first uplink resource.

The scheduling module 330 is configured to, if there are no available uplink resources and no available BFR SR resources, select the scheduling request configuration corresponding to the logical channel with the highest logical channel priority, and send the BFR second SR to the network side.

The receiving module 350 is configured to receive a third message sent by the network side according to the BFR second SR, where the third message includes the information of the first uplink resource.

In an exemplary embodiment, the transmission module 230 is further configured to: transmit MAC CE on the first physical uplink shared channel PUSCH. FIG. 10 is a block diagram of an apparatus in a specific embodiment of the determining module 270 in the specific embodiment corresponding to FIG. 6. As shown in FIG. 10, the determination module 270 includes but is not limited to: a monitoring unit 271 and a status determination unit 273.

The monitoring unit 271 is configured to monitor the HARQ process corresponding to the first PUSCH during the running of the first timer.

The status determining unit 273 is configured to determine the BFR completion status of the secondary cell according to the monitoring result of the HARQ process.

In an exemplary embodiment, the status determining unit 273 is further configured to:

If the retransmission scheduling of the HARQ process is not monitored during the operation of the first timer, it is determined that the BFR of the secondary cell is completed.

If the new transmission schedule of the HARQ process is monitored during the operation of the first timer, it is determined that the BFR of the secondary cell is completed.

In an exemplary embodiment, the status determining unit 273 is further configured to determine if the retransmission schedule of the HARQ process and/or the new transmission schedule of the HARQ process is not monitored during the operation of the first timer The BFR of the secondary cell failed.

In an exemplary embodiment, the device for determining the completion status of cell beam failure recovery further includes but is not limited to:

The retransmission module is configured to retransmit the MAC CE on the first uplink resource if the retransmission scheduling of the HARQ process is monitored during the operation of the first timer.

In an exemplary embodiment, the timer starting module 250 is further used for:

Start the second timer.

After the second timer expires, the first timer is started.

In an exemplary embodiment, the timer starting module 250 is further used for:

The second timer is started on the first symbol after the first PUSCH.

In an exemplary embodiment, the timer starting module 250 is further used for:

The first timer is started on the first symbol after the first PUSCH.

For the implementation process of the functions and roles of each module in the above-mentioned device, please refer to the implementation process of corresponding steps in any method for determining the completion status of cell beam failure recovery provided in the above-mentioned specific implementation manners, and will not be repeated here.

FIG. 11 is a schematic diagram of the hardware structure of a terminal device for implementing a method for determining a completion status of a cell beam failure recovery according to various embodiments of the present disclosure. As shown in FIG. 11, the terminal device includes a processor 410 and a memory 420, and the above-mentioned components of the terminal device implement communication connections with each other through a bus system.

The processor 410 may also be an independent component, or may be a collective name for multiple processing elements. For example, it may be a CPU, an ASIC, or one or more integrated circuits configured to implement the above method, such as at least one microprocessor DSP, or at least one programmable gate FPGA.

The memory 420 stores a program that can be run on the processor 410, and when the processor 410 executes the program, some or all of the steps of the method for determining the completion status of the cell beam failure recovery in the specific implementation of the method are implemented.

The specific implementation manner of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed, the determination of the cell beam is achieved as in the above-mentioned specific embodiment of the method. Part or all of the steps in the method of failure recovery to complete the situation.

The specific implementation manner of the present application also provides a computer program product, wherein the computer program product is stored in a non-transitory computer-readable storage medium, and when the computer program is executed, the determination of the cell beam is achieved as in the above-mentioned specific embodiment of the method. Part or all of the steps of the method of failure recovery to complete the situation. The computer program product may be a software installation package.

The specific implementation manner of the present application also provides a chip, including: a processor, configured to call and run a computer program from the memory, and the device installed with the chip executes the determination of the completion status of the cell beam failure recovery in the specific implementation manner of the above method. Part or all of the steps of the method.

The specific implementation manner of the present application also provides a computer program that, when executed, realizes some or all of the steps of the method for determining the completion status of cell beam failure recovery in the above-mentioned specific implementation manner of the method.

The steps of the method or algorithm described in the specific embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions. Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), and erasable programmable read-only memory ( Erasable Programmable ROM (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), registers, hard disk, mobile hard disk, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in the ASIC. In addition, the ASIC may be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.

Those skilled in the art should be aware that, in one or more of the foregoing examples, the functions described in the specific embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the specific implementation manners of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a Digital Video Disc (DVD)), or a semiconductor medium (for example, a Solid State Disk (SSD)) )Wait.

The specific implementations described above further describe the purpose, technical solutions, and beneficial effects of the specific implementations of the application. It should be understood that the foregoing is only specific implementations of the specific implementations of the application, and It is not used to limit the protection scope of the specific embodiments of this application. Any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the specific embodiments of this application shall be included in the protection of the specific embodiments of this application. Within range.

It should be understood that the present application is not limited to the precise structure that has been described above and shown in the drawings, and various modifications and changes can be performed without departing from its scope. The scope of the application is only limited by the appended claims.

Claims

A method for determining the completion status of cell beam failure recovery, applied to terminal equipment, characterized in that the method includes:

Determine to start the beam failure recovery BFR process of the secondary cell, and trigger a media access control MAC control unit CE, where the MAC CE is used for the secondary cell to perform the BFR process;

Transmit the MAC CE;

After transmitting the MAC CE, start the first timer;

Determine the BFR completion status of the secondary cell according to the first timer.
The method according to claim 1, wherein the process of determining to start the BFR of the secondary cell comprises:

Determining the number of beam failure instances of the secondary cell;

If the number of beam failure instances of the secondary cell is greater than or equal to the preset threshold, it is determined to start the BFR process of the secondary cell.
The method according to claim 2, wherein the determining the number of beam failure instances of the secondary cell comprises:

Start the third timer;

Determine the number of beam failure instances of the secondary cell during the operation of the third timer.
The method according to any one of claims 1 to 3, wherein the transmitting the MAC CE comprises:

The MAC CE is transmitted on the first uplink resource.
The method according to claim 4, wherein if there is an available uplink resource, the available uplink resource includes the first uplink resource.
The method according to claim 4 or 5, wherein the method further comprises:

If there is no available uplink resource, send the BFR first scheduling request SR to the network side;

Receiving a first message sent by the network side according to the first SR of the BFR, where the first message includes the information of the first uplink resource.
The method according to claim 4 or 5, wherein the method further comprises:

If there are no available uplink resources and no available BFR SR resources, then the contention-based random access CB RACH process is initiated in the primary cell;

A second message sent by the network side according to the CB RACH is received, where the second message includes the information of the first uplink resource.
The method according to claim 4 or 5, wherein the method further comprises:

If there are no available uplink resources and no available BFR SR resources, select the scheduling request configuration corresponding to the logical channel with the highest logical channel priority, and send the BFR second SR to the network side;

A third message sent by the network side according to the second SR of the BFR is received, where the third message includes the information of the first uplink resource.
The method according to any one of claims 5 to 8, wherein the available uplink resources can perform link control protocol procedures.
The method according to any one of claims 5 to 8, wherein the available uplink resources are resources obtained by dynamic authorization or resources obtained by configuration authorization.
The method according to any one of claims 5 to 8, wherein the available uplink resources are uplink resources on any serving cell, and the serving cell includes a secondary cell where BFR occurs.
The method according to any one of claims 1 to 11, wherein the transmitting the MAC CE comprises:

Transmitting the MAC CE on the first physical uplink shared channel PUSCH;

The determining the BFR completion status of the secondary cell according to the first timer includes:

During the operation of the first timer, monitoring the HARQ process corresponding to the first PUSCH;

Determine the BFR completion status of the secondary cell according to the monitoring result of the HARQ process.
The method according to claim 12, wherein the determining the BFR completion status of the secondary cell according to the monitoring result of the HARQ process comprises:

If the retransmission scheduling of the HARQ process is not monitored during the operation of the first timer, it is determined that the BFR of the secondary cell is completed.
The method according to claim 12 or 13, wherein the determining the BFR completion status of the secondary cell according to the monitoring result of the HARQ process comprises:

If the new transmission scheduling of the HARQ process is monitored during the operation of the first timer, it is determined that the BFR of the secondary cell is completed.
The method according to claim 12, wherein the determining the BFR completion status of the secondary cell according to the monitoring result of the HARQ process comprises:

If the retransmission schedule of the HARQ process and/or the new transmission schedule of the HARQ process is not monitored during the operation of the first timer, it is determined that the BFR of the secondary cell fails.
The method according to claim 15, wherein the method further comprises:

If the retransmission scheduling of the HARQ process is monitored during the operation of the first timer, the MAC CE is retransmitted on the first uplink resource.
The method according to any one of claims 1 to 16, wherein the first timer comprises:

Discontinuous reception uplink retransmission timer drx-RetransmissionTimerUL.
The method according to any one of claims 1 to 17, wherein said starting the first timer comprises:

Start the second timer;

After the second timer expires, the first timer is started.
The method according to claim 18, wherein the second timer comprises:

Discontinuous reception hybrid automatic repeat request uplink delay timer drx-HARQ-RTT-TimerUL.
The method according to claim 18 or 19, wherein said starting the second timer comprises:

The second timer is started at the first symbol after the first PUSCH.
The method according to any one of claims 1 to 16, wherein the first timer comprises:

Timer configured on the network side.
The method according to claim 21, wherein said starting the first timer comprises:

The first timer is started at the first symbol after the first PUSCH.
A device for determining the completion status of beam failure recovery in a cell, characterized in that the device comprises:

The trigger module is used to determine to start the beam failure recovery BFR process of the secondary cell, and trigger a media access control MAC control unit CE, where the MAC CE is used for the secondary cell to perform the BFR process;

The transmission module is used to transmit the MAC CE;

The timer starting module is used to start the first timer after transmitting the MAC CE;

The determining module is configured to determine the BFR completion status of the secondary cell according to the first timer.
The device according to claim 23, wherein the trigger module comprises:

A number determining unit, configured to determine the number of beam failure instances of the secondary cell;

The activation determination unit is configured to determine to activate the BFR process of the secondary cell if the number of beam failure instances of the secondary cell is greater than or equal to a preset threshold.
The device according to claim 23, wherein the number determining unit is further configured to:

Start the third timer;

Determine the number of beam failure instances of the secondary cell during the operation of the third timer.
The device according to claims 23-25, wherein the transmission module is further configured to:

The MAC CE is transmitted on the first uplink resource.
The device according to claim 26, wherein the device further comprises:

The scheduling module is configured to send a BFR first scheduling request SR to the network side if there is no available uplink resource;

The receiving module is configured to receive a first message sent by the network side according to the first SR of the BFR, where the first message includes the information of the first uplink resource.
The device according to claim 26, wherein the device further comprises:

The random access module is used to initiate a contention-based random access CB RACH process in the primary cell if there are no available uplink resources and no available BFR SR resources;

The receiving module is configured to receive a second message sent by the network side according to the CB RACH, where the second message includes the information of the first uplink resource.
The device according to claim 26, wherein the device further comprises:

The scheduling module is used to select the scheduling request configuration corresponding to the logical channel with the highest logical channel priority if there is no available uplink resource and no available BFR SR resource, and send the BFR second SR to the network side;

The receiving module is configured to receive a third message sent by the network side according to the second SR of the BFR, where the third message includes the information of the first uplink resource.
The device according to any one of claims 23 to 29, wherein the transmission module is further configured to:

Transmitting the MAC CE on the first physical uplink shared channel PUSCH;

The determining module includes:

A monitoring unit, configured to monitor the HARQ process corresponding to the first PUSCH during the operation of the first timer;

The status determining unit is configured to determine the BFR completion status of the secondary cell according to the monitoring result of the HARQ process.
The device according to claim 30, wherein the condition determining unit is further configured to:

If the retransmission scheduling of the HARQ process is not monitored during the operation of the first timer, it is determined that the BFR of the secondary cell is completed.
The device according to claim 30 or 31, wherein the condition determining unit is further configured to:

If the new transmission scheduling of the HARQ process is monitored during the operation of the first timer, it is determined that the BFR of the secondary cell is completed.
The device according to claim 30, wherein the condition determining unit is further configured to:

If the retransmission scheduling of the HARQ process and/or the new transmission scheduling of the HARQ process is not monitored during the operation of the first timer, it is determined that the BFR of the secondary cell fails.
The device according to claim 30, wherein the device further comprises:

The retransmission module is configured to retransmit the MAC CE on the first uplink resource if the retransmission scheduling of the HARQ process is monitored during the operation of the first timer.
The device according to any one of claims 23 to 34, wherein the timer starting module is further configured to:

Start the second timer;

After the second timer expires, the first timer is started.
The device according to claim 35, wherein the timer starting module is further used for:

The second timer is started at the first symbol after the first PUSCH.
The device according to any one of claims 23 to 34, wherein the timer starting module is further configured to:

The first timer is started at the first symbol after the first PUSCH.
A terminal device, the terminal device comprising: a processor and a memory, wherein the memory stores a program that can run on the processor, and when the processor executes the program, the above claims are implemented The method for determining the completion status of cell beam failure recovery described in any one of 1 to 22.
A computer-readable storage medium, characterized in that it stores a computer program, wherein when the computer program is executed, the method for determining the completion status of cell beam failure recovery according to any one of claims 1 to 22 is realized.
A computer program product, characterized in that the computer program product is stored in a non-transitory computer-readable storage medium, and when the computer program is executed, the determination of cell beam failure according to any one of claims 1 to 22 is realized The method of restoring the completion status.
A chip, characterized by comprising: a processor, configured to call and run a computer program from a memory, and a device installed with the chip executes the determination of completion of cell beam failure recovery according to any one of claims 1 to 22 The method of the situation.
A computer program, characterized in that, when the computer program is executed, the method for determining the completion status of cell beam failure recovery according to any one of claims 1 to 22 is realized.