CN111836293B

CN111836293B - Method for reporting beam failure recovery BFR, terminal and network side equipment

Info

Publication number: CN111836293B
Application number: CN201910328313.2A
Authority: CN
Inventors: 黄学艳; 左君
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2023-05-09
Anticipated expiration: 2039-04-23
Also published as: CN111836293A

Abstract

The invention provides a method for reporting beam failure recovery BFR, a terminal and network side equipment. The method is applied to the terminal and comprises the following steps: when the current beam quality is detected to be higher than a first threshold condition for performing Beam Failure Recovery (BFR) and lower than or equal to a preset second threshold condition, a BFR request is sent to network side equipment through a Media Access Control (MAC) control unit (CE); wherein the beam quality satisfying the second threshold condition is higher than the beam quality satisfying the first threshold condition. By adopting the method, before the terminal judges that the BFR is entered based on the first threshold condition, when judging that the beam quality is lower than or equal to the preset second threshold condition, the terminal reports the BFR request in advance so as to avoid the problems of resource waste and incapability of normal data transmission caused by triggering the BFR random access.

Description

Method for reporting beam failure recovery BFR, terminal and network side equipment

Technical Field

The present invention relates to the field of wireless technologies, and in particular, to a method, a terminal, and a network side device for reporting a beam failure recovery BFR.

Background

In a long term evolution (Evolved Long Term Evolution, LTE) system, the terminal physical layer performs quality listening to the current beam and reports poor quality information (instance) to the medium access control (Media Access Control, MAC) layer. Based on the information such as the beam failure recovery (Beam failure recovery, BFR) threshold configured by the higher layer, the MAC layer decides that the terminal enters Beam failure recovery, starts the beam failure recovery timer, and notifies the network side Beam failure recovery to execute random access or packet BFR request information.

When performing random access, a BFR non-Contention random access (CFRA) or BFR Contention random access (Contention Based Random Access, CBRA) procedure is further triggered to enable selection of a new beam.

When triggering CFRA BFRs, further triggering CBRA BFRs may be required. CFRA BFR needs to reserve a preamble index and/or a Random Access (RA) timing for a beam, thereby causing a certain waste of Random Access resources. In addition, when the terminal executes BFR random access, the transmission data is interrupted, and normal data transmission cannot be performed.

Disclosure of Invention

The invention aims to provide a method for reporting beam failure recovery BFR, a terminal and network side equipment, which are used for solving the problems that resources are wasted and normal data transmission cannot be performed when BFR random access is triggered when the beam failure of the terminal is recovered in the prior art.

The embodiment of the invention provides a method for reporting beam failure recovery BFR, which is applied to a terminal, wherein the method comprises the following steps:

when the current beam quality is detected to be higher than a first threshold condition for performing Beam Failure Recovery (BFR) and lower than or equal to a preset second threshold condition, a BFR request is sent to network side equipment through a Media Access Control (MAC) control unit (CE);

wherein the beam quality satisfying the second threshold condition is higher than the beam quality satisfying the first threshold condition.

The embodiment of the invention also provides a method for reporting the beam failure recovery BFR, which is applied to the network side equipment, wherein the method comprises the following steps:

acquiring a BFR request sent by a terminal to network equipment through a Media Access Control (MAC) control unit (CE);

the BFR request is sent by the terminal when detecting that the current beam quality is higher than a first threshold condition for performing the beam failure recovery BFR and lower than or equal to a preset second threshold condition, and the beam quality meeting the second threshold condition is higher than the beam quality meeting the first threshold condition.

The embodiment of the invention also provides a terminal, which comprises a processor, wherein the processor is used for:

The embodiment of the invention also provides network side equipment, which comprises a processor, wherein the processor is used for:

The embodiment of the invention also provides a terminal, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor; the method for reporting BFR according to any one of the above is realized when the processor executes the program.

The embodiment of the invention also provides network side equipment, which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor; the method for reporting BFR according to any one of the above is realized when the processor executes the program.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, wherein the program, when executed by a processor, implements the steps in the BFR reporting method according to any of the above.

At least one of the above technical solutions of the invention has the following beneficial effects:

according to the BFR reporting method, before the terminal judges that the beam quality is lower than or equal to the preset second threshold condition based on the first threshold condition, the terminal sends a BFR request to the network side equipment in advance through a Media Access Control (MAC) Control unit (CE), and reports candidate beams with good beam quality, so that the network side equipment knows the situation that the beam quality of the terminal is poor and the beam is accurately replaced in advance, and the problems that when the beam quality of the terminal is poor, the BFR random access is triggered, resource waste is caused, and normal data transmission cannot be carried out are avoided.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system to which the method for reporting beam failure recovery BFR of the present invention is applied;

fig. 2 is a flowchart of a first implementation of a method for reporting a beam failure recovery BFR according to an embodiment of the present invention;

fig. 3 is a schematic diagram of one format of a BFR MAC CE in the method for reporting beam failure recovery BFR according to the embodiment of the present invention;

fig. 4 is a schematic diagram of a format of reference signal index information;

fig. 5 is a flowchart of a second implementation of a method for reporting a beam failure recovery BFR according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first implementation of the terminal according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a first implementation manner of a network side device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a second implementation of the terminal according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a second implementation manner of a network side device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The reporting method of the beam failure recovery BFR in the embodiment of the invention is applied to a wireless communication system, wherein the wireless communication system can be a 5G system, an evolution type long term evolution (Evolved Long Term Evolution, eLTE) system or a subsequent evolution communication system. Referring to fig. 1, a schematic architecture diagram of a wireless communication system according to an embodiment of the present invention is provided. As shown in fig. 1, the wireless communication system may include: base station 10 and user equipment (or terminals), e.g., terminals, referred to as UE 20, UE 20 may be connected to base station 10. In practical application, the connection between the devices may be wireless connection, and for convenience and intuitionistic representation of the connection relationship between the devices, a solid line is used for illustration in fig. 1.

The base station 10 provided in the embodiment of the present invention may be a commonly used base station, an evolved node b (evolved node base station, eNB), or a network side device in a 5G system (for example, a next generation base station (next generation node base station, gNB) or a transmitting and receiving point (transmission and reception point, TRP)) or a cell.

The user equipment provided by the embodiment of the invention can be a mobile phone, a tablet personal computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook or a personal digital assistant (Personal Digital Assistant, PDA) and the like.

In order to solve the problems that in the prior art, when a terminal beam fails to recover and triggers BFR random access, resource waste is caused and normal data transmission cannot be performed, the embodiment of the invention provides a reporting method of the beam failure recovery BFR, before BFR threshold (first threshold condition) based on high-level configuration is judged to enter BFR, a BFR request is sent to network side equipment through a Media Access Control (MAC) Control Element (CE), and candidate beams with good beam quality are reported, so that the problems that the BFR random access is triggered, the resource waste is caused and the normal data transmission cannot be performed are avoided.

The first implementation manner of the method for reporting the beam failure recovery BFR according to the embodiment of the present invention is applied to a terminal, as shown in fig. 2, and includes:

s210, when detecting that the current beam quality is higher than a first threshold condition for performing Beam Failure Recovery (BFR) and lower than or equal to a preset second threshold condition, sending a BFR request to network side equipment through a Media Access Control (MAC) control unit (CE);

In the embodiment of the present invention, the first threshold condition is determined by a higher layer configuration, and the second threshold condition is determined by the terminal.

Specifically, in the process of monitoring the beam quality, before judging that the current beam quality reaches a first threshold condition that the high-level configuration needs to perform the BFR request, the terminal determines that the current beam quality is lower than or equal to a preset second threshold condition, and triggers in advance to report the BFR request to the network side equipment.

The method is not particularly limited, and the method only needs to make the beam quality meeting the second threshold condition higher than the beam quality meeting the first threshold condition, so as to ensure that the terminal triggers in advance to report the BFR request to the network side device before judging that the current beam quality reaches the first threshold condition of the BFR request required by the high-level configuration.

In the embodiment of the present invention, optionally, in step S210, when a BFR request is sent to the network side device through the medium access control MAC control element CE, the method further includes:

the BFR timer is started and a beam failure event indication COUNTER (beam failure instance indication COUNTER, bfi_counter) is set to zero.

By starting the BFR timer, the terminal can monitor whether to receive the response of the network side equipment to the BFR request in the timing time of the BFR timer; and by setting BFI_COUNTER to zero, the terminal can retransmit the BFR request and count when the terminal does not receive the response of the network side equipment to the BFR request within the timing time of the BFR timer, and the beam fault recovery is considered to be failed when the maximum transmission times configured by a high layer are reached.

In the embodiment of the present invention, in step S210, in the step of sending the BFR request to the network side device through the medium access control MAC control element CE, the sending of the BFR request is indicated by the reserved uplink logical channel identifier (logical channel identify, LCID).

Table 1 below is a table of correspondence between LCID values and indexes for uplink shared channels (Uplink Shared Channel, UL-SCH). In the embodiment of the present invention, the BFR request may be represented by an LCID with a reserved index of 51, but is not limited thereto.

TABLE 1

In addition, optionally, in the embodiment of the present invention, in step S210, in the step of sending, by the medium access control MAC control element CE, a BFR request to the network side device, each data unit of the medium access control MAC control element CE includes sequentially arranged data units: reserved bits, extended fields, and reference signal index RS index information;

the extended field is used for indicating whether other data units located behind the current data unit further comprise reference signal index information; the reference signal index information is used for indicating the index of one candidate beam in the preconfigured candidate beam list.

Specifically, for illustration, a MAC CE for transmitting a BFR request is shown in fig. 3. Wherein in each data unit, R bit is a reserved bit; e is an extension domain, wherein when the extension domain is 1, other data units after the current data unit further comprise Reference Signal (RS) index information; when the extension field is 0, it indicates that other data units following the current data unit do not include the reference signal index RS index information.

In addition, it can be appreciated that the candidate beam list candidate Beam RS List can be preconfigured by the radio resource control (Radio Resource Control, RRC).

Optionally, the reference signal index RS index information indicates an index of one of the candidate beams in the preconfigured candidate beam list in the form of a bitmap format.

Specifically, for illustration, the RS index information indicates whether or not the RS index is valid with 1bit Bi (bi= "0" or "1"), bi identifying the i-th RS index in the candidate beam list candidate Beam RS List of the RRC configuration. Taking candidate Beam RS List with 16 RS index as an example, the reference signal index information is represented as shown in fig. 4 by a bitmap format. From bi= "1" or "0", it can be derived whether the i-th RS index is a valid candidate beam.

Of course, the representation of the reference signal index information is not limited to the above form, and those skilled in the art should be able to represent the reference signal index information in various forms, which are not illustrated herein.

In addition, in the embodiment of the present invention, optionally, in step S210, in the step of transmitting a BFR request to the network side device through the medium access control MAC control element CE, the BFR request is transmitted with a higher priority than data except for a cell radio network temporary identifier (C-RNTI) MAC CE and data transmitted by an Uplink (UL) common control channel (common control channel, CCCH).

That is, the BFR MAC CE transmission is prioritized after the C-RNTI MAC CE and the UL-CCCH transmission of data, and before other data. Therefore, when the terminal detects that the current beam quality is poor, the BFR request can be preferentially reported to the network side equipment, so that the network side equipment is informed of the beam with good quality obtained by the terminal measurement, and the beam is accurately replaced.

By adopting the BFR reporting method provided by the embodiment of the invention, before the BFR threshold (first threshold condition) based on high-level configuration judges that the BFR is entered, the BFR request is sent to the network side equipment in advance, the candidate wave beam with better wave beam quality is reported, so as to inform the network side equipment, and the wave beam is accurately replaced, thereby avoiding the problems of resource waste and incapability of normal data transmission caused by BFR triggering BFR random access.

The second implementation manner of the BFR reporting method in the embodiment of the present invention is applied to a network side device, as shown in fig. 5, where the method includes:

s510, obtaining a BFR request sent by a terminal to network equipment through a Media Access Control (MAC) control unit (CE);

According to the reporting method for the beam failure recovery BFR, before the terminal judges that the BFR is entered based on the BFR threshold value (first threshold value condition) configured at a high level, when the beam quality is lower than or equal to the preset second threshold value condition, a Media Access Control (MAC) Control unit (CE) sends a BFR request to network side equipment, candidate beams with good beam quality are reported, and the network side equipment is enabled to acquire the conditions that the beam quality of the terminal is poor and the beam is accurately replaced, so that the problems that when the beam quality of the terminal is poor, the BFR random access is triggered, resource waste is caused, and normal data transmission cannot be carried out are avoided.

Optionally, after step S510, the method further includes:

and sending a response message to the BFR request to the terminal.

Specifically, after receiving the BFR request, the network side device may switch the beam to a candidate beam reported by the BFR request, and send a response message to the BFR request to the terminal through the switched candidate beam, so as to confirm the candidate beam reported by the BFR request to the terminal, and complete recovery of beam failure, so as to avoid that the terminal further triggers BFR random access, thereby causing resource waste and failing to perform normal data transmission.

Optionally, in step S510, in the step of obtaining the BFR request sent by the terminal to the network side device through the medium access control MAC control element CE, the BFR request is indicated by the reserved uplink logical channel identifier LCID.

See table 1 for correspondence between LCID values and indexes for uplink shared channels (Uplink Shared Channel, UL-SCH). In the embodiment of the present invention, the BFR request may be represented by an LCID with a reserved index of 51, but is not limited thereto.

In addition, optionally, in step S510, in the step of obtaining a BFR request sent by the terminal to the network side device through the medium access control MAC control element CE, each data unit of the medium access control MAC control element CE includes sequentially arranged data units: reserved bits, extension fields, and reference signal index information;

For example, the RS index information indicates whether or not RS index is valid with 1bit Bi (bi= "0" or "1"), bi identifying the i-th RS index in the candidate beam list candidate Beam RS List of RRC configuration. Taking candidate Beam RS List with 16 RS index as an example, the reference signal index information is represented as shown in fig. 4 by a bitmap format. From bi= "1" or "0", it can be derived whether the i-th RS index is a valid candidate beam.

Optionally, in step S510, in the step of acquiring a BFR request sent by the terminal to the network side device through the medium access control MAC control element CE, the BFR request is sent with a higher priority than data except the cell radio network temporary identifier C-RNTI MAC CE and data sent by the uplink common control channel UL-CCCH.

The embodiment of the present invention further provides a terminal, as shown in fig. 6, the terminal 600 includes a processor 610, where the processor 610 is configured to:

Before BFR threshold value (first threshold condition) based on high-level configuration judges that BFR is entered, the terminal of the embodiment of the invention sends BFR request to network side equipment in advance to report candidate wave beams with better wave beam quality so as to inform the network side equipment to accurately replace wave beams, thereby avoiding the problems of resource waste and incapability of normal data transmission caused by BFR triggering BFR random access.

Optionally, the processor 610 is further configured to:

the BFR timer is started and the beam failure event indication COUNTER bfi_counter is set to zero.

Optionally, when the processor 610 sends the BFR request to the network side device through the medium access control MAC control element CE, the BFR request is indicated by the reserved uplink logical channel identifier LCID.

Optionally, when the processor 610 sends a BFR request to the network-side device through the medium access control MAC control element CE, each data unit of the medium access control MAC control element CE includes sequentially arranged: reserved bits, extension fields, and reference signal index information;

Optionally, the terminal indicates, by a bitmap format, an index of one candidate beam in the preconfigured candidate beam list.

Optionally, when the processor 610 sends a BFR request to the network side device through the medium access control MAC control element CE, the BFR request is sent with a higher priority than data except the cell radio network temporary identifier C-RNTI MAC CE and data sent by the uplink common control channel UL-CCCH.

Optionally, the first threshold condition is determined by a higher layer configuration and the second threshold condition is determined by the terminal.

The embodiment of the present invention further provides a network side device, as shown in fig. 7, where the network side device 700 includes a processor 710, where the processor 710 is configured to:

According to the network side equipment, before the terminal judges that the BFR is entered based on the BFR threshold value (first threshold condition) configured at a high layer, when the beam quality is lower than or equal to a preset second threshold condition, a Media Access Control (MAC) Control unit (CE) sends a BFR request to the network side equipment, and candidate beams with good beam quality are reported, so that the network side equipment can acquire the conditions that the beam quality of the terminal is poor and the beam is accurately replaced, and the problems that when the beam quality of the terminal is poor, the BFR random access is triggered, resource waste is caused, and normal data transmission cannot be carried out are avoided.

Optionally, in the BFR request acquired by the processor 710, the BFR request is indicated by the reserved uplink logical channel identification LCID.

Optionally, in the BFR request acquired by the processor 710, each data unit of the medium access control MAC control element CE includes a sequence of: reserved bits, extension fields, and reference signal index information;

Optionally, the network side device further includes a reference signal index information indicating an index of one candidate beam in the preconfigured candidate beam list in a bitmap format.

Optionally, in the BFR request acquired by the processor 710, the BFR request is sent with a higher priority than data except for the cell radio network temporary identifier C-RNTI MAC CE and data sent by the uplink common control channel UL-CCCH.

Another aspect of the embodiment of the present invention further provides a terminal, as shown in fig. 8, including: a processor 801; and a memory 803 connected to the processor 801 through a bus interface 802, the memory 803 being for storing programs and data used by the processor 801 when executing operations, the processor 801 calling and executing the programs and data stored in the memory 803.

The transceiver 804 is connected to the bus interface 802, and is configured to receive and transmit data under the control of the processor 801, specifically, the processor 801 is configured to read a program in the memory 803, and perform the following procedures:

Optionally, the processor 801 is further configured to:

Optionally, when the processor 801 sends a BFR request to the network side device through the medium access control MAC control element CE, the BFR request is indicated by the reserved uplink logical channel identifier LCID.

Optionally, when the processor 801 sends a BFR request to the network side device through the medium access control MAC control element CE, each data unit of the medium access control MAC control element CE includes sequentially arranged: reserved bits, extension fields, and reference signal index information;

Optionally, when the processor 801 sends a BFR request to the network side device through the medium access control MAC control element CE, the BFR request is sent with a higher priority than data except the cell radio network temporary identifier C-RNTI MAC CE and data sent by the uplink common control channel UL-CCCH.

It should be noted that in fig. 8, the bus architecture may include any number of interconnecting buses and bridges, and in particular one or more processors represented by the processor 801 and various circuits of memory represented by the memory 803 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 804 may be a number of elements, i.e. include a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 805 may also be an interface capable of interfacing with an inscribed desired device for a different terminal, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.

Those skilled in the art will appreciate that all or part of the steps implementing the above embodiments may be implemented by hardware, or may be implemented by a program including instructions for performing some or all of the steps of the above methods; and the program may be stored in a readable storage medium, which may be any form of storage medium.

The embodiment of the invention also provides another network side device, as shown in fig. 9, which comprises a transceiver 901, a memory 902, a processor 900, and a program stored in the memory 902 and capable of running on the processor 900; the processor 900 invokes and executes programs and data stored in the memory 902.

The transceiver 901 receives and transmits data under the control of the processor 900, specifically, the processor 900 is configured to read a program in the memory 902, and perform the following procedures:

Optionally, in the BFR request acquired by the processor 900, the BFR request is indicated by the reserved uplink logical channel identifier LCID.

Optionally, in the BFR request acquired by the processor 900, each data unit of the medium access control MAC control element CE includes a sequence of: reserved bits, extension fields, and reference signal index information;

Optionally, in the BFR request acquired by the processor 900, the BFR request is sent with a higher priority than data except for the cell radio network temporary identifier C-RNTI MAC CE and data sent by the uplink common control channel UL-CCCH.

Where in FIG. 9, a bus architecture may comprise any number of interconnected buses and bridges, with one or more processors, represented in particular by processor 900, and various circuits of memory, represented by memory 902, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 901 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 902 may store data used by the processor 900 in performing operations.

In addition, a specific embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, where the program when executed by a processor implements the steps in the BFR reporting method according to any of the above claims.

In the several embodiments provided in this application, it should be understood that the disclosed methods and apparatus may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may be physically included separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.

The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes should also be considered as being within the scope of the present invention.

Claims

1. The method for reporting the beam failure recovery BFR is applied to a terminal and is characterized by comprising the following steps:

wherein the beam quality satisfying the second threshold condition is higher than the beam quality satisfying the first threshold condition;

in the step of sending the BFR request to the network side device through the medium access control MAC control element CE, each data unit of the medium access control MAC control element CE includes sequentially arranged: reserved bits, extension fields, and reference signal index information;

2. The method for reporting BFRs of claim 1, further comprising:

3. The method for reporting BFR according to claim 1, wherein in the step of sending the BFR request to the network side device through the medium access control MAC control element CE, the BFR request is indicated by a reserved uplink logical channel identifier LCID.

4. The method according to claim 1, wherein the reference signal index information indicates an index of one candidate beam in the preconfigured candidate beam list in a bitmap format.

5. The method according to claim 1, wherein in the step of sending the BFR request to the network side device through the medium access control MAC control element CE, the BFR request is sent with a higher priority than data except the cell radio network temporary identifier C-RNTI MAC CE and data sent by the uplink common control channel UL-CCCH.

6. The method for reporting a BFR of claim 1, wherein the first threshold condition is determined by a higher layer configuration and the second threshold condition is determined by the terminal.

7. The reporting method of the beam failure recovery BFR is applied to network side equipment and is characterized by comprising the following steps:

the BFR request is sent when the terminal detects that the current beam quality is higher than a first threshold condition for performing the beam failure recovery BFR, and the current beam quality is lower than or equal to a preset second threshold condition, and the beam quality meeting the second threshold condition is higher than the beam quality meeting the first threshold condition;

in the step of obtaining the BFR request sent by the terminal to the network side device through the medium access control MAC control element CE, each data unit of the medium access control MAC control element CE includes sequentially arranged: reserved bits, extension fields, and reference signal index information;

8. The method for reporting BFR as claimed in claim 7, wherein in the step of obtaining the BFR request sent by the terminal to the network side device through the medium access control MAC control element CE, the BFR request is indicated by a reserved uplink logical channel identifier LCID.

9. The method according to claim 7, wherein the reference signal index information indicates an index of one candidate beam in the preconfigured candidate beam list in a bitmap format.

10. The method according to claim 7, wherein in the step of obtaining the BFR request sent by the terminal to the network side device through the medium access control MAC control element CE, the BFR request is sent with a higher priority than data except for the cell radio network temporary identifier C-RNTI MAC CE and data sent by the uplink common control channel UL-CCCH.

11. The method for reporting BFRs of claim 7, wherein the first threshold condition is determined by a higher layer configuration and the second threshold condition is determined by the terminal.

12. A terminal comprising a processor, wherein the processor is configured to:

when the processor sends a BFR request to the network side equipment through a Media Access Control (MAC) control unit (CE), each data unit of the media access Control (CE) comprises the following components in sequence: reserved bits, extension fields, and reference signal index information;

13. The terminal of claim 12, wherein the processor is further configured to:

14. The terminal of claim 12, wherein the processor indicates the BFR request by the reserved uplink logical channel identification LCID when sending the BFR request to the network side device through the medium access control MAC control element CE.

15. The terminal of claim 12, wherein the reference signal index information indicates an index of one of the candidate beams in the preconfigured candidate beam list in the form of a bitmap format.

16. The terminal according to claim 12, wherein when the processor sends a BFR request to the network side device via the medium access control MAC control element CE, the BFR request is sent with a higher priority than data except for the cell radio network temporary identifier C-RNTI MAC CE and data sent by the uplink common control channel UL-CCCH.

17. The terminal of claim 12, wherein the first threshold condition is determined by a higher layer configuration and the second threshold condition is determined by the terminal.

18. A network side device comprising a processor, the processor configured to:

in the BFR request obtained by the processor, each data unit of the medium access control MAC control element CE includes sequentially arranged: reserved bits, extension fields, and reference signal index information;

19. The network side device of claim 18, wherein the BFR request is indicated by a reserved uplink logical channel identification LCID in the BFR request acquired by the processor.

20. The network-side device of claim 18 wherein the reference signal index information indicates an index of one of the candidate beams in the list of preconfigured candidate beams in the form of a bitmap format.

21. The network side device according to claim 18, wherein the BFR request is sent with a higher priority than data except for the cell radio network temporary identifier C-RNTI MAC CE and data sent by the uplink common control channel UL-CCCH in the BFR request obtained by the processor.

22. The network-side device of claim 18, wherein the first threshold condition is determined by a higher layer configuration and the second threshold condition is determined by the terminal.

23. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the method for reporting BFR according to any one of claims 1 to 6 is implemented when the processor executes the program.

24. A network side device comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the method for reporting BFR according to any one of claims 7 to 11 is implemented when the processor executes the program.

25. A computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps in the method of reporting a BFR according to any of claims 1 to 6 or the steps in the method of reporting a BFR according to any of claims 7 to 11.