CN113260071B

CN113260071B - BSR reporting method, network device and computer readable storage medium

Info

Publication number: CN113260071B
Application number: CN202010091502.5A
Authority: CN
Inventors: 刘进华
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2023-06-23
Anticipated expiration: 2040-02-13
Also published as: CN113260071A

Abstract

The embodiment of the invention provides a BSR reporting method, network equipment and a computer readable storage medium, wherein the method comprises the following steps: according to the triggering conditions of the first BSR and the second BSR, sending target report information in the MAC PDU, wherein the target report information comprises a first MAC CE corresponding to the first BSR and/or a second MAC CE corresponding to the second BSR, and the first BSR is a preemptive BSR; the target report information satisfies at least one of the following: under the condition of triggering one of the first BSR and the second BSR, determining target report information according to a first preset rule; and under the condition that the first BSR and the second BSR are triggered, the target report information is determined according to a second preset rule. The embodiment of the invention solves the problem of sending the BSR after the preempted BSR is introduced into the IAB network. Therefore, the Preemptive BSR can be introduced into the IAB network, and the performance of the IAB network is improved.

Description

BSR reporting method, network device and computer readable storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a BSR reporting method, a network device, and a computer readable storage medium.

Background

In a communication system, in order to reduce uplink data transmission delay, a Preemptive (BSR) buffer status report (Buffer Status Report) is introduced. However, in the self-backhaul (integrated access backhaul, IAB) network, the IAB node specifies the BSR, and since the preempted BSR is introduced into the IAB network, there will be two BSR procedures, and the two BSR procedures are not completely independent of each other, and many times have an influence on each other. Therefore, how to implement BSR transmission after introducing a preempted BSR in an IAB network is a problem to be solved.

Disclosure of Invention

The embodiment of the invention provides a BSR reporting method, network equipment and a computer readable storage medium, which are used for solving the problem of how to realize the transmission of a BSR after the pre-transmission BSR is introduced into an IAB network.

In a first aspect, an embodiment of the present invention provides a BSR reporting method, which is applied to a network device of a self-backhaul IAB network, and is characterized in that the method includes:

according to the triggering conditions of a first BSR and a second BSR, sending target reporting information in a Media Access Control (MAC) Protocol Data Unit (PDU), wherein the target reporting information comprises a first MAC control unit (CE) corresponding to the first BSR and/or a second MAC CE corresponding to the second BSR, and the first BSR is a preemptive BSR;

wherein the target report information satisfies at least one of:

under the condition of triggering one of the first BSR and the second BSR, the target reporting information is determined according to a first preset rule;

and under the condition of triggering the first BSR and the second BSR, the target reporting information is determined according to a second preset rule.

The second side, an embodiment of the present invention provides a network device, which is characterized in that the network device includes:

the sending module is used for sending target reporting information in a Media Access Control (MAC) Protocol Data Unit (PDU) according to triggering conditions of a first BSR and a second BSR, wherein the target reporting information comprises a first MAC control unit (CE) corresponding to the first BSR and/or a second MAC CE corresponding to the second BSR, and the first BSR is a preemptive BSR;

wherein the target report information satisfies at least one of:

In a third aspect, an embodiment of the present invention provides a network device, including: the BSR reporting system comprises a memory, a processor and a program stored in the memory and capable of running on the processor, wherein the program realizes the steps in the BSR reporting method when being executed by the processor.

In a fourth aspect, an embodiment of the present invention provides a computer readable storage medium having a computer program stored thereon, which when executed by a processor, implements the steps of the BSR reporting method described above.

In the embodiment of the invention, the target reporting information is determined according to the triggering conditions of the first BSR and the second BSR, and the target reporting information is sent in the Media Access Control (MAC) protocol data unit PDU. The first BSR and/or the second BSR are/is triggered to send reporting information, so that the problem of sending the BSR after the pre-transmission BSR is introduced into the IAB network is solved. Therefore, the embodiment of the invention can introduce the Preemptive BSR into the IAB network, thereby improving the performance of the IAB network.

Drawings

FIG. 1 is a block diagram of a network system to which embodiments of the present invention are applicable;

FIG. 2 is a CU-DU block diagram of the IAB system;

FIG. 3 is a flow chart of triggering a preempted BSR based on a received BSR;

fig. 4 is a flowchart of a BSR reporting method according to an embodiment of the present invention;

fig. 5 is a block diagram of a network device according to an embodiment of the present invention;

fig. 6 is a block diagram of another network device according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means at least one of the connected objects, e.g., a and/or B, meaning that it includes a single a, a single B, and that there are three cases of a and B.

In embodiments of the invention, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

Embodiments of the present invention are described below with reference to the accompanying drawings. The BSR reporting method, the network equipment and the computer readable storage medium provided by the embodiment of the invention can be applied to a wireless communication system. The wireless communication system may be a 5G system, or an evolved long term evolution (Evolved Long Term Evolution, lte) system, or a subsequent evolved communication system.

Referring to fig. 1, fig. 1 is a block diagram of an IAB network system to which an embodiment of the present invention is applicable, and as shown in fig. 1, the system includes a terminal 11 and a network device 12, where the network device may be understood as an IAB node (IAB node). The IAB node includes a Distributed Unit (DU) function part and a mobile terminal (Mobile Termination, MT) function part. By means of MT, an access point (i.e. IAB node) can find an upstream access point (parent IAB node) and establish a wireless connection with the DU of the upstream access point, which wireless connection is called backhaul link. After an IAB node establishes a complete backhaul link, the IAB node opens its DU function, and the DU provides cell services, i.e. the DU may provide access services for a terminal (UE) 11. A self-backhaul loop comprises a host (Donor) IAB node (also referred to as IAB Donor) having a wired transmission network directly connected thereto.

The terminal 11 may be a user terminal or other terminal-side device, for example: terminal-side devices such as a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (personal digital assistant, PDA for short), a mobile internet Device (Mobile Internet Device, MID) or a Wearable Device (weardable Device), it should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a 5G base station, or a later version of a base station, or a base station in other communication systems, or referred to as a node B, an evolved node B, or a transmitting/receiving Point (Transmission Reception Point, TRP), or an Access Point (AP), or other words in the field, and the network device is not limited to a specific technical word as long as the same technical effect is achieved. In addition, the network device 12 may be a Master Node (MN) or a Secondary Node (SN). It should be noted that, in the embodiment of the present invention, only a 5G base station is taken as an example, but the specific type of the network device is not limited.

Referring to fig. 2, a Central Unit (CU) -DU structure of an IAB system. In a self-backhauling loop, all IAB node DUs are connected to a CU node, which configures the DU via the F1-AP protocol. The CU configures the MT through a radio resource control (Radio Resource Control, RRC) protocol. The Donor IAB node has no MT functional part.

The IAB system is introduced to solve the problem that the wired transmission network is not deployed in place when the access points are densely deployed. I.e. without a wired transmission network, the access point may rely on wireless backhaul.

In order to better understand the present invention, the related art will be described below.

Currently, the default supported BSR types include:

1. a general BSR (i.e., regular BSR) will be triggered in any of the following cases.

Case 1: LCH with higher priority than Logical Channel (LCH) with data transmission at present, from no data transmission to data transmission;

case 2: when all LCHs do not have data to send, one LCH becomes data to send;

case 3: at least one LCH has further data to send when a BSR retransmission Timer (retxBSR-Timer) expires.

2. Periodic BSR (Periodic BSR), when a periodic BSR transmit Timer (periodic BSR-Timer) times out.

3. Additional BSR (Padding BSR) is triggered when one medium access control protocol data unit (Medium Access Control Protocol Data Unit, MAC PDU) has remaining capacity to accommodate BSR MAC CEs after accommodating all data.

One LCH belongs to one logical channel group (LCH group), and the Buffer Size (BS) of the BSR is reported according to LCG units, and at most 8 LCGs may be configured. The Regular BSR may trigger the transmission of a scheduling request (Scheduling Request, SR). If no grant (grant) is obtained after the last SR transmission, SR retransmission may be triggered.

In order to reduce the uplink data transmission delay, an IAB node may trigger a preempted BSR after receiving an SR/BSR of the UE or the downstream node. A flow chart of a preempted BSR based on a received BSR trigger is shown, for example, in fig. 3. In fig. 3, the following steps are included:

step 301, receiving a first scheduling request triggered by a downstream node based on a second BSR;

step 302, in response to a first scheduling request, sending a first grant to a downstream node;

step 303, transmitting a second BSR based on the first grant;

step 304, after receiving the second BSR, triggering the first BSR, and triggering a second scheduling request based on the first BSR;

step 305, in response to the second scheduling request, sending a second grant to the downstream node;

step 306, a first BSR is transmitted based on the second grant.

The second BSR may be understood as the BSR supported by default, for example, rel-15BSR, and in the following embodiments, the second BSR is exemplified as Rel-15 BSR. The first BSR may be understood as a Preemptive BSR.

Referring to fig. 4, fig. 4 is a flowchart of a BSR reporting method according to an embodiment of the present invention, where the method is applied to a network device of an IAB network, as shown in fig. 4, and includes the following steps:

step 401, according to the triggering conditions of the first BSR and the second BSR, sending target report information in a media access control MAC protocol data unit PDU, where the target report information includes a first MAC control element CE corresponding to the first BSR and/or a second MAC CE corresponding to the second BSR, and the first BSR is a preemptive BSR;

wherein the target report information satisfies at least one of:

Optionally, in the embodiment of the present invention, when the first BSR and/or the second BSR are triggered, reporting of the target reporting information may be triggered. The first MAC CE corresponding to the first BSR may be understood as a MAC CE carrying the first BSR, and the second MAC CE corresponding to the second BSR may be understood as a MAC CE carrying the second BSR. The format of the first MAC CE may reuse the format of the second MAC CE, that is, there is no new format, and no new Logical Channel Index (LCID). The second MAC CE may include an LCG ID and a buffer size. The first MAC CE may be understood as Preemptive BSR MAC CE and the second MAC CE may be understood as Rel-15BSR MAC CE.

Optionally, for the case that only one BSR is triggered, a manner (i.e., a first preset rule) may be adopted to determine the reported target reporting information; and for the case that both BSRs are triggered, determining the reported target reporting information in another mode (namely, a second preset rule). Wherein the first preset rule is different from the second preset rule.

Alternatively, in an embodiment, where the first BSR and the second BSR are triggered separately, one BSR may be transmitted separately and the other BSR may not be transmitted separately.

For example, in one embodiment, the first preset rule includes:

in case of triggering the first BSR, the target reporting information includes the first MAC CE;

the target reporting information includes the first MAC CE and the second MAC CE in case of triggering the second BSR.

In this embodiment, the target report information including the first MAC CE may be understood that the target report information includes only the first MAC CE, in other words, in the case where only the first BSR is triggered, only the first MAC CE is transmitted since the first MAC CE may be transmitted alone. In case of triggering the second BSR, the target report information includes the first MAC CE and the second MAC CE, since the second MCACE does not support separate transmission, and needs to be transmitted together with the first MAC CE. And the first BSR is not triggered, the buffer size of the first MAC CE may be indicated as a fixed value, e.g., 0. In other words, in the present embodiment, the first MAC CE may indicate that the buffer size is 0bit.

In another embodiment, the first preset rule includes:

in case of triggering the second BSR, the target reporting information includes the second MAC CE;

the target reporting information includes the first MAC CE and the second MAC CE in case of triggering the first BSR.

In this embodiment, the target report information including the second MAC CE may be understood that the target report information includes only the second MAC CE, in other words, in the case where only the second BSR is triggered, only the second MAC CE is transmitted since the second MAC CE may be transmitted alone. In case of triggering the first BSR, the target report information includes the first MAC CE and the second MAC CE, since the first MCA CE does not support separate transmission and needs to transmit with the second MAC CE. And the second BSR is not triggered, the buffer size of the second MAC CE may be indicated as a fixed value, e.g., 0. In other words, in the present embodiment, the second MAC CE may indicate that the buffer size is 0bit.

Further, the setting of the second preset rule may be set according to actual situations, for example, in an embodiment, the second preset rule may include any one of the following:

rule 1, the target report information includes the first MAC CE and the second MAC CE;

rule 2, in the case that the first MAC CE indicates actually buffered data to be transmitted and data to be transmitted expected to be received from a downstream node, respectively, the target report information includes the first MAC CE;

rule 3, in the case where only target information is indicated in the first MAC CE, the target report information includes the first MAC CE and the second MAC CE; wherein the target information includes: the data to be transmitted, which is expected to be received from the downstream node, or the sum of the actually buffered data to be transmitted and the data to be transmitted, which is expected to be received from the downstream node.

For rule 1 above, the order of arrangement of the first MAC CE and the second MAC CE may be agreed by a protocol. For example, in an embodiment, the first MAC CE is located after the second MAC CE.

In this embodiment, when both the first BSR and the second BSR are triggered, respective MAC CE formats (short BSR format or long BSR format) may be selected to generate the first MAC CE and the second MAC CE, the first MAC CE may be agreed to be behind or in front of the second MAC CE in one MAC PDU, and a parent IAB node corresponding to an IAB node that sends the target report information (i.e., an IAB node that receives the target report information) may determine the first MAC CE and the second MAC CE according to the arrangement sequence of the first MAC CE and the second MAC CE. The second BSR triggering the second BSR in rule 1 may be understood as a Rel-15regular BSR, and further, may be understood as a regular BSR of the Rel-15regular BSR.

For rule 2 above, it can be understood that: only Preemptive BSR MAC CE is sent if both the Rel-15regular BSR and the Preemptive BSR are triggered and the actual buffered data to be sent and the data to be sent that is expected to be received from the downstream node are indicated in Preemptive BSR MAC CE.

For rule 3 above, the second BSR triggering the second MAC CE in rule 3 may be understood as a Rel-15regular BSR, and further may be understood as a regular BSR or a periodic BSR in the Rel-15regular BSR.

Further, for rule 3, the protocol may specify that the resource allocation priority of the second MAC CE is higher than the resource allocation priority of the first MAC CE.

In addition, whether to transmit the first MAC CE may be further determined according to the space size of the MAC PDU. For example, in an alternative embodiment, the second preset rule further includes at least one of:

after resources are allocated to the second MAC CE, the first MAC CE does not send under the condition that no residual resources exist;

and after the resources are allocated to the second MAC CE, under the condition that the residual resources are insufficient to send all report information of the first BSR, the first MAC CE does not send or only comprises a first buffer report, and the first buffer report is part of report information of the first BSR.

In this embodiment, the remaining resources may be understood as the remaining space of the MAC PDU after the resources are allocated to the second MAC CE in the MAC PDU. Alternatively, if both the Rel-15BSR (regular BSR or periodic BSR) and the Preemptive BSR are triggered and Preemptive BSR MAC CE contains only the sum of the data to be transmitted expected from the downstream node or only the data to be transmitted indicating the actual buffer and the data to be transmitted expected from the downstream node, then only the priority Rel-15BSR is transmitted, if the MAC PDU has room for it, preemptive BSR MAC CE may be transmitted simultaneously, and if there is insufficient room for both to be transmitted, preemptive BSR MAC CE may be discarded or the portion of the Preemptive BSR where the intended buffer report of the low priority LCG is discarded and the intended buffer report of the high priority LCG is transmitted. In other words, in this embodiment, the priority of the logical channel corresponding to the first buffer report is higher than the priority of the logical channel corresponding to the second buffer report, where the second buffer report is report information in the first BSR except for the first buffer report.

Alternatively, in another embodiment, the target report information may be determined according to the priority of the BSR. Wherein the priorities of the first BSR and the second BSR satisfy at least one of:

in the case that the priority of the logic channel triggering the first BSR is higher than or equal to the priority of the logic channel triggering the second BSR, the priority of the first BSR is higher than the priority of the second BSR;

in the case that the priority of the logical channel triggering the first BSR is lower than the priority of the logical channel triggering the second BSR, the priority of the first BSR is lower than the priority of the second BSR.

In this embodiment, the second BSR may be understood as a regular BSR or a periodic BSR, and the priority may be understood as a transmission priority of the BSR, in other words, may be understood as a resource allocation priority. If both the Rel-15BSR (regular BSR or periodic BSR) and the preempted BSR are triggered, comparing the priority of LCH triggering the Rel-15regular BSR and the preempted BSR, if the priority of LCH (or LCG) triggering the Rel-15BSR is higher than the priority of LCH (or LCG) triggering the preempted BSR, the transmission priority of the Rel-15BSR is higher than the transmission priority of the preempted BSR. Otherwise, the transmission priority of the preempted BSR is higher than that of the Rel-15 BSR. If the priority of the LCH (or LCG) triggering the Rel-15BSR is the same as the priority of the LCH (or LCG) triggering the preempted BSR, the Rel-15BSR priority is higher than the preempted BSR.

It should be understood that in this embodiment, transmission control may be performed according to the priority of the BSR, where the BSR with higher priority is preferentially transmitted, and when the MAC PDU has enough space to transmit the BSR with lower priority, the BSR with lower priority may be simultaneously transmitted. When the MAC PDU does not have enough space to transmit the BSR with lower priority, the BSR with lower priority may be discarded or only a partial buffer report of the BSR with lower priority may be transmitted.

Further, in an embodiment, before the sending the target report information in the media access control MAC protocol data unit PDU, the method further includes:

under the condition that the authorization corresponding to the first scheduling request triggered by the first object is not received and the second object with higher priority is triggered, determining a new scheduling request resource according to the logic channel with the highest priority of the second object;

sending a second scheduling request according to the new scheduling request resource;

wherein the new scheduling request resource is used for sending the MAC PDU, and the first object is one of the first BSR and the second BSR; the second object is the other of the first BSR and the second BSR.

In this embodiment, if there is a waiting (pending) SR triggered by a BSR (i.e., a first object, rel-15regular BSR or preempted BSR), and then a BSR with higher priority (i.e., a second object, preempted BSR or Rel-15regular BSR) is triggered, the IAB node may restart the SR procedure according to the LCH with the highest priority that triggers the BSR with higher priority, e.g., the IAB node does not receive a grant from the parent IAB node, may cancel the ongoing SR procedure, determine new SR resources according to the LCH with the highest priority that triggers the BSR with higher priority, and start the SR procedure.

It should be understood that the highest priority logical channel described above includes a logical channel having the highest priority among logical channels for which data to be transmitted or data desired to be transmitted.

For a better understanding of the present invention, specific implementations of the present invention are described in detail below.

1. Generation and transmission of BSR MAC CEs of the preempted BSR.

The preempted BSR and Rel-15BSR may use different MAC CEs or BSR MAC CEs that reuse Rel-15. The following embodiments assume that the pre-emptive BSR reuses the BSR MAC CE of Rel-15, i.e. without a new format and without a new LCID.

Alternatively, the preempted BSR may follow the BSR MAC CE of Rel-15. Rel-15BSR is always sent in one MAC PDU with the preempted BSR, and the placement order of BSR MAC CEs in the MAC PDU can be used for determining the Rel-15BSR MAC CEs and the preempted BSR. The IAB node selects the format (short BSR format or long BSR format) of each BSR MAC CE according to the report content of the Rel-15BSR and the preempted BSR. The protocol may agree whether the Rel-15BSR MAC CE is placed before or after Preemptive BSR MAC CE in one MAC PDU. The parent IAB node of the IAB node may determine the Rel-15BSR and the Preemptive BSR according to this order.

Alternatively, if only one BSR is received, the BSR may agree on whether the received BSR is a Rel-15BSR or a preempted BSR, i.e., the protocol may dictate whether the Rel-15BSR or preempted BSR may be sent separately. If the protocol contract Rel-15BSR can be sent alone and the preempted BSR needs to be sent with the Rel-15BSR, then the IAB node generates an accompanying Rel-15BSR when sending the preempted BSR, e.g., if there is no actual data to be sent in the buffer, the short BSR MAC CE can be used to indicate that the buffer size is 0. The same process applies to the case where the predictive BSR can be transmitted alone.

2. Priority handling of Rel-15BSR and Preemptive BSR.

Alternatively, in one embodiment, only Preemptive BSR MAC CE is transmitted if both the Rel-15regular BSR and the Preemptive BSR are triggered and the actual buffered data to be transmitted and the data to be transmitted that is expected to be received from the downstream node are indicated in Preemptive BSR MAC CE.

Alternatively, in another embodiment, if both the Rel-15BSR (regular BSR or periodic BSR) and the Preemptive BSR are triggered, and the sum of only the actually buffered data to be transmitted and the data to be transmitted expected to be received from the downstream node is indicated in Preemptive BSR MAC CE or only the data to be transmitted expected to be received from the downstream node is included, then only the priority transmission of the Rel-15BSR is performed. If the MAC PDU has room, preemptive BSR MAC CE may be sent simultaneously, and if there is insufficient room for both to be sent, preemptive BSR MAC CE may be discarded or the portion of the low priority LCG's intended buffer report therein may be discarded and the high priority LCG's intended buffer report sent.

Optionally, in yet another embodiment, if both the Rel-15BSR (regular BSR or periodic BSR) and the Preemptive BSR are triggered, the priority of the LCH triggering the Rel-15regular BSR and the Preemptive BSR is compared, and if the priority of the LCH (or LCG) triggering the Rel-15BSR is higher than the priority of the LCH (or LCG) triggering the Preemptive BSR, the transmission priority (i.e., resource allocation priority) of the Rel-15BSR is higher than the transmission priority of the Preemptive BSR. Otherwise, the transmission priority of the preempted BSR is higher than that of the Rel-15 BSR. If the priority of the LCH (or LCG) triggering the Rel-15BSR is the same as the priority of the LCH (or LCG) triggering the preempted BSR, the Rel-15BSR priority is higher than the preempted BSR.

3. SR processing program.

Alternatively, if there is a pending SR triggered by a BSR (Rel-15 regular BSR or Preemptive BSR) followed by a BSR with higher priority (Preemptive BSR or Rel-15regular BSR), the IAB node may restart the SR procedure with the LCH triggering the highest priority of the BSR with higher priority, e.g., the IAB node may cancel the ongoing SR procedure, determine new SR resources with the LCH triggering the highest priority of the BSR with higher priority, and start the SR procedure. Here, the highest priority LCH triggering the BSR of higher priority may be understood as the priority of the LCH of the data to be transmitted or the data desired to be transmitted with the highest priority in the BSR MAC CE.

Referring to fig. 5, fig. 5 is a block diagram of a network device according to an embodiment of the present invention, and as shown in fig. 5, a network device 500 includes:

a sending module 501, configured to send target report information in a media access control MAC protocol data unit PDU according to triggering conditions of a first BSR and a second BSR, where the target report information includes a first MAC control element CE corresponding to the first BSR and/or a second MAC CE corresponding to the second BSR, and the first BSR is a preemptive BSR;

wherein the target report information satisfies at least one of:

Optionally, the first preset rule includes:

Optionally, the second preset rule includes any one of the following:

Optionally, when the second preset rule is rule 3, a protocol specifies that the resource allocation priority of the second MAC CE is higher than the resource allocation priority of the first MAC CE.

Optionally, the second preset rule further includes at least one of the following:

Optionally, the priority of the logical channel corresponding to the first buffer report is higher than the priority of the logical channel corresponding to the second buffer report, where the second buffer report is report information except for the first buffer report in the first BSR.

Optionally, when the second preset rule is rule 1, a protocol agrees to agree on the arrangement sequence of the first MAC CE and the second MAC CE.

Optionally, the first MAC CE is located after the second MAC CE.

Optionally, the priorities of the first BSR and the second BSR satisfy at least one of:

Optionally, the network device 500 further includes:

a determining module, configured to determine a new scheduling request resource according to a logical channel of a highest priority of a second object when an authorization corresponding to a first scheduling request triggered by a first object is not received and the second object of a higher priority is triggered;

the sending module 501 is further configured to send a second scheduling request according to the new scheduling request resource;

Optionally, the logical channel with the highest priority includes a logical channel with the highest priority among the logical channels with data to be transmitted or data desired to be transmitted.

The network device provided by the embodiment of the present invention can implement each process implemented by the network device in the method embodiment of fig. 4, and in order to avoid repetition, details are not repeated here, so that the configured resource overhead can be reduced.

Referring to fig. 6, fig. 6 is a block diagram of another network device according to an embodiment of the present invention, and as shown in fig. 6, the network device 600 includes: processor 601, transceiver 602, memory 603 and bus interface, wherein:

a transceiver 602, configured to send target reporting information in a media access control MAC protocol data unit PDU according to triggering conditions of a first BSR and a second BSR, where the target reporting information includes a first MAC control element CE corresponding to the first BSR and/or a second MAC CE corresponding to the second BSR, and the first BSR is a preemptive BSR;

wherein the target report information satisfies at least one of:

The network device provided in the embodiment of the present invention can implement each process implemented by the network device in the method embodiment of fig. 4, and in order to avoid repetition, a description is omitted here.

In fig. 6, a bus architecture may comprise any number of interconnected buses and bridges, with various circuits of the one or more processors, represented in particular by processor 601, and the memory, represented in memory 603. 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 602 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 user interface 604 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 may store data used by the processor 601 in performing operations.

Preferably, the embodiment of the present invention further provides a network device, including a processor 601, a memory 603, and a computer program stored in the memory 603 and capable of running on the processor 601, where the computer program when executed by the processor 601 implements each process of the BSR reporting method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements each process of the BSR reporting method embodiment of the network device side provided by the embodiment of the invention, and can achieve the same technical effect, so that repetition is avoided, and no further description is given here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

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

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a base station, etc.) to perform the method according to the embodiments of the present invention.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims

1. A buffer status report BSR reporting method applied to a network device of a self-backhauled IAB network, comprising:

wherein, the target report information satisfies:

under the condition of triggering a first BSR and a second BSR, the target reporting information is determined according to a second preset rule;

the second preset rule includes any one of the following:

2. The method of claim 1, wherein the target report information further satisfies: and under the condition that one of the first BSR and the second BSR is triggered, the target reporting information is determined according to a first preset rule.

3. The method of claim 2, wherein the first preset rule comprises:

4. The method of claim 2, wherein the first preset rule comprises:

5. The method of claim 1, wherein, in the case where the second preset rule is the rule 3, a protocol specifies that the resource allocation priority of the second MAC CE is higher than the resource allocation priority of the first MAC CE.

6. The method of claim 5, wherein the second preset rule further comprises at least one of:

7. The method of claim 6, wherein a priority of a logical channel corresponding to the first buffer report is higher than a priority of a logical channel corresponding to a second buffer report, the second buffer report being reporting information in the first BSR other than the first buffer report.

8. The method of claim 1, wherein the second preset rule is rule 1, and wherein the arrangement order of the first MAC CE and the second MAC CE is agreed by a protocol.

9. The method of claim 8, wherein the first MAC CE is located after the second MAC CE.

10. The method of claim 1, wherein the priorities of the first BSR and the second BSR satisfy at least one of:

11. The method of claim 1, wherein prior to transmitting the target report information in the medium access control MAC protocol data unit PDU, the method further comprises:

12. The method of claim 11, wherein the highest priority logical channel comprises a highest priority logical channel of the logical channels for which data is to be transmitted or desired.

13. A network device, comprising:

wherein, the target report information satisfies:

the second preset rule includes any one of the following:

14. The network device of claim 13, wherein the target reporting information further satisfies: and under the condition that one of the first BSR and the second BSR is triggered, the target reporting information is determined according to a first preset rule.

15. A network device, comprising: a memory, a processor, and a program stored on the memory and executable on the processor, which when executed by the processor, performs the steps in the BSR reporting method of any one of claims 1 to 12.

16. A computer readable storage medium, having stored thereon a computer program which, when executed by a processor, implements the steps of the BSR reporting method of any of claims 1 to 12.