CN113260071A

CN113260071A - BSR reporting method, network device and computer readable storage medium

Info

Publication number: CN113260071A
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: 2021-08-13
Anticipated expiration: 2040-02-13
Also published as: CN113260071B

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: sending target report information in the MAC PDU according to the triggering conditions of the first BSR and the second BSR, 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 of triggering the first BSR and the second BSR, determining the target report information according to a second preset rule. The embodiment of the invention solves the problem of BSR transmission after introducing the Preemptive BSR in the IAB network. Therefore, a 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 (Preemptive) Buffer Status Report (BSR) is introduced. However, since the IAB node defines BSR in the self-backhauled (IAB) network, two BSR procedures exist due to the introduction of the Preemptive BSR into the IAB network, and the two BSR procedures are not completely independent from each other, and often have mutual influence. Therefore, after introducing a Preemptive BSR in an IAB network, how to implement BSR transmission becomes an urgent problem to be solved.

Disclosure of Invention

Embodiments of the present invention provide a BSR reporting method, a network device, and a computer-readable storage medium, so as to solve a problem how to implement BSR transmission after introducing a Preemptive BSR in 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-backhauled IAB network, and is characterized in that the method includes:

sending 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, wherein the target report 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 report information is determined according to a first preset rule;

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

On the second side, an embodiment of the present invention provides a network device, which includes:

a sending module, configured to send target report information in a 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:

In a third aspect, an embodiment of the present invention provides a network device, including: a memory, a processor and a program stored on the memory and executable on the processor, the program implementing the steps of the BSR reporting method when executed by the processor.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the BSR reporting method described above.

In the embodiment of the invention, the target report information is determined according to the triggering conditions of the first BSR and the second BSR, and the target report information is sent in a Media Access Control (MAC) Protocol Data Unit (PDU). The behavior that the first BSR and/or the second BSR are triggered and the report information is sent is defined, so that the problem of sending the BSR after the Preemptive BSR is introduced into the IAB network is solved. Therefore, the embodiment of the invention can introduce a Preemptive BSR in the IAB network and improve the performance of the IAB network.

Drawings

Fig. 1 is a block diagram of a network system to which an embodiment of the present invention is applicable;

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

FIG. 3 is a flow diagram of triggering a Preemptive 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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, 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, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Embodiments of the present invention are described below with reference to the accompanying drawings. The BSR reporting method, the network device 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, an Evolved Long Term Evolution (lte) system, or a subsequent lte communication system.

Referring to fig. 1, fig. 1 is a structural diagram of an IAB network system to which an embodiment of the present invention is applicable, and as shown in fig. 1, the IAB network system includes a terminal 11 and a network device 12, and the network device may be understood as an IAB node (IAB node). The IAB node includes a Distributed Unit (DU) function portion and a Mobile Termination (MT) function portion. By means of the 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 is called backhaul link. After an IAB node establishes a complete backhaul link, the IAB node opens its DU function, and the DU provides a cell service, that is, the DU can provide an access service for a terminal (User Equipment, UE) 11. A self-backhauling loop comprises a host (Donor) IAB node (also referred to as IAB Donor) having a wired transport network directly connected to it.

The terminal 11 may be a user terminal or other terminal-side devices, for example: it should be noted that, in the embodiment of the present invention, a specific type of the terminal 11 is not limited, and the terminal may be a terminal-side Device such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device). The network device 12 may be a 5G base station, a later-version base station, or a base station in another communication system, or referred to as a node B, an evolved node B, or a Transmission Reception Point (TRP), an Access Point (AP), or another vocabulary in the field, and the network device is not limited to a specific technical vocabulary 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 the 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 architecture diagram of an IAB system. In a self-backhauling loop, all the IAB node DUs are connected to one CU node, and the DU is configured by this one node through the F1-AP protocol. The CU configures the MT through a Radio Resource Control (RRC) protocol. The Donor IAB node has no MT functionality.

The introduction of the IAB system is to solve the problem that the wired transmission network is not deployed in place when access points are densely deployed. I.e. the access point may rely on a wireless backhaul in the absence of a wired transmission network.

For a better understanding of the present invention, the related art will be explained below.

Currently, the default supported BSR types include:

one, a general BSR (i.e., a Regular BSR), which will be triggered in any of the following cases.

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

case 2: when all LCHs have no data to transmit, one LCH becomes data to transmit;

case 3: when a BSR retransmission Timer (retxBSR-Timer) times out, at least one LCH still has data to be transmitted.

Second, a periodic BSR (periodic BSR) is triggered when a periodic BSR transmission Timer (periodic BSR-Timer) times out.

Third, add BSR (padding BSR), which is triggered when a Medium Access Control Protocol Data Unit (MAC PDU) holds all Data and the remaining capacity can hold BSR MAC CE.

One LCH belongs to one logical channel group (LCH group), the Buffer Size (BS) of the BSR is reported in LCG units, and up to 8 LCGs can be allocated. The Regular BSR may trigger transmission of a Scheduling Request (SR). SR retransmission may be triggered if no grant is obtained after the last SR transmission.

In order to reduce the uplink data transmission delay, an IAB node may trigger a Preemptive BSR after receiving an SR/BSR of a UE or a downstream node. A flow diagram of a Preemptive BSR triggered based on a received BSR 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, responding to the first scheduling request, and sending a first authorization to a downstream node;

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

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

step 305, responding to the second scheduling request, and sending a second authorization to the downstream node;

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

The second BSR may be understood as the above-mentioned default supported BSR, for example, a Rel-15BSR, and in the following embodiments, the second BSR is taken as a Rel-15BSR as an example for explanation. 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, and as shown in fig. 4, the method includes the following steps:

step 401, according to the triggering conditions of a first BSR and a second BSR, sending target report information in a 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 report 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, 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 a Preemptive BSR MAC CE, and the second MAC CE may be understood as a Rel-15BSR MAC CE.

Optionally, when only one BSR is triggered, a mode (i.e., a first preset rule) may be used to determine the reported target report information; for the case that both BSRs are triggered, another method (i.e., a second preset rule) is adopted to determine the reported target report information. Wherein the first predetermined rule is different from the second predetermined rule.

Optionally, in an embodiment, in a case that the first BSR and the second BSR are triggered separately, one BSR may be sent separately, and the other BSR may not be sent separately.

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

in a case that the first BSR is triggered, the target report information includes the first MAC CE;

the target report information includes the first MAC CE and the second MAC CE in case the second BSR is triggered.

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

In another embodiment, the first preset rule includes:

in a case that the second BSR is triggered, the target report information includes the second MAC CE;

the target report information includes the first MAC CE and the second MAC CE in case the first BSR is triggered.

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

Further, the setting of the second preset rule may be set according to actual conditions, 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 a case that the first MAC CE indicates actually cached data to be transmitted and data to be transmitted that is expected to be received from a downstream node, respectively, the target report information includes the first MAC CE;

rule 3, in a case that 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 expected to be received from the downstream node, or the sum of the actually cached data to be transmitted and the data to be transmitted expected to be received from the downstream node.

For the above rule 1, the order 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, and it may be agreed that the first MAC CE is 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 order 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, as a regular BSR in a Rel-15regular BSR.

With respect to rule 2 above, it can be understood that: and if the Rel-15regular BSR and the Preemptive BSR are both triggered and the Preemptive BSR MAC CE indicates the actually cached data to be sent and the data to be sent expected to be received from the downstream node, only the Preemptive BSR MAC CE is sent.

With respect to rule 3 above, the second BSR triggering the second MAC CE in rule 3 may be understood as Rel-15regular BSR, and further may be understood as regular BSR or period BSR in Rel-15regular BSR.

Further, for rule 3, it may be specified by a protocol 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 a space size of the MAC PDU. For example, in an optional embodiment, the second preset rule further includes at least one of:

after allocating the resources for the second MAC CE, the first MAC CE does not transmit the resources if there are no remaining resources;

after allocating resources for the second MAC CE, in a case that remaining resources are insufficient to send all report information of the first BSR, the first MAC CE does not send or the first MAC CE only includes a first cache report, where the first cache report is partial report information of the first BSR.

In this embodiment, the remaining resources may be understood as a remaining space of the MAC PDU after allocating resources for the second MAC CE in the MAC PDU. Optionally, if Rel-15BSR (regular BSR or periodic BSR) and Preemptive BSR are both triggered, and the Preemptive BSR MAC CE only includes data to be sent expected to be received from the downstream node or only indicates a sum of actually buffered data to be sent and data to be sent expected to be received from the downstream node, only send the Rel-15BSR preferentially, if the MAC PDU has space, the Preemptive BSR MAC CE may be sent simultaneously, if the space is insufficient for allowing both to be sent completely, the Preemptive BSR MAC CE may be discarded or the expected buffer report of the low priority LCG in the Preemptive BSR may be discarded and the expected buffer report of the high priority LCG may be sent. 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, and the second buffer report is report information of the first BSR except the first buffer report.

Optionally, 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 logical channel triggering a first BSR is higher than or equal to the priority of the logical channel triggering a second BSR, the priority of the first BSR is higher than the priority of the second BSR;

and under the condition that the priority of the logic channel triggering the first BSR is lower than that of the logic channel triggering the second BSR, the priority of the first BSR is lower than that 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, a resource allocation priority. If both Rel-15BSR (regular BSR or period BSR) and Preemptive BSR are triggered, the priorities of LCH triggering Rel-15regular BSR and Preemptive BSR are compared, if the priority of LCH (or LCG) triggering Rel-15BSR is higher than that of LCH (or LCG) triggering Preemptive BSR, the transmission priority of Rel-15BSR is higher than that of Preemptive BSR. Otherwise, the sending priority of the Preemptive BSR is higher than that of the Rel-15 BSR. If the priority of LCH (or LCG) triggering Rel-15BSR is the same as that of LCH (or LCG) triggering Preemptive BSR, the priority of Rel-15BSR is higher than that of Preemptive BSR.

It should be understood that, in this embodiment, transmission control may be performed according to the priority of the BSR, the BSR with higher priority may be transmitted preferentially, and when the MAC PDU has enough space to transmit the BSR with lower priority, the BSR with lower priority may be transmitted simultaneously. 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 a medium access control MAC protocol data unit PDU, the method further includes:

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

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

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

In this embodiment, if there is a waiting (pending) SR triggered by one BSR (i.e., the first object, Rel-15regular BSR or Preemptive BSR), and a BSR with a higher priority is triggered later (i.e., the second object, Preemptive BSR or Rel-15regular BSR), the IAB node may restart the SR procedure according to the LCH with the highest priority that triggers the BSR with the higher priority, and if the IAB node does not receive a grant from the parent IAB node, the ongoing SR procedure may be cancelled, and a new SR resource is determined according to the LCH with the highest priority that triggers the BSR with the higher priority and starts the SR procedure.

It should be understood that the above-mentioned logical channel with the highest priority includes a logical channel with the highest priority among logical channels to which data is to be transmitted or data desired to be transmitted.

Specific implementations of the present invention are described in detail below for a better understanding of the invention.

Generation and transmission of BSR MAC CE of a predictive BSR.

The predictive BSR and Rel-15BSR may use different MAC CEs or reuse the BSR MAC CEs of Rel-15. The following embodiments assume that the preemptive BSR reuses the BSR MAC CE of Rel-15, i.e., there is no new format, and there is no new LCID for illustration.

Optionally, the predicted BSR may follow the BSR MAC CE of Rel-15. Rel-15BSR is always sent in one MAC PDU with a Preemptive BSR, and the Rel-15BSR MAC CE and the Preemptive BSR can be determined by the placement sequence of the BSR MAC CE in the MAC PDU. The IAB node respectively selects respective BSR MAC CE formats (short BSR formats or long BSR formats) according to the report contents of the Rel-15BSR and the predictive BSR. The protocol may be agreed in one MAC PDU, with Rel-15BSR MAC CE placed before or after the Preemptive BSR MAC CE. The parent IAB node of the IAB node may determine Rel-15BSR and Preemptive BSR according to this order.

Optionally, if only one BSR is received, the BSR may agree that the received BSR is a Rel-15BSR or a predictive BSR, that is, the protocol may specify whether the Rel-15BSR or the predictive BSR may be separately transmitted. If the protocol stipulates that the Rel-15BSR can be sent alone and the predictive BSR needs to be sent together with the Rel-15BSR, when the predictive BSR is sent, the IAB node needs to generate an accompanying Rel-15BSR, for example, if no actual data to be sent exists in the buffer, the short BSR MAC CE can be used for indicating that the buffer size is 0. The same applies to the case where a predictive BSR can be sent alone.

And II, priority processing of Rel-15BSR and Preemptive BSR.

Optionally, in an embodiment, if both Rel-15regular BSR and Preemptive BSR are triggered, and the Preemptive BSR MAC CE indicates actually buffered data to be sent and data to be sent that is expected to be received from the downstream node, only the Preemptive BSR MAC CE is sent.

Optionally, in another embodiment, if both Rel-15BSR (regular BSR or periodic BSR) and Preemptive BSR are triggered, and the Preemptive BSR MAC CE indicates only the sum of actually buffered data to be transmitted and data to be transmitted expected to be received from the downstream node or only includes data to be transmitted expected to be received from the downstream node, only the Rel-15BSR is preferentially transmitted. If the MAC PDU has space, the Preemptive BSR MAC CE can be sent at the same time, and if the space is not enough for the MAC PDU and the MAC CE to be sent completely, the Preemptive BSR MAC CE can be discarded or the expected buffer report of the low-priority LCG in the MAC CE can be discarded and the expected buffer report part of the high-priority LCG can be sent.

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

And thirdly, SR processing procedure.

Optionally, if there is a pending SR triggered by one BSR (Rel-15regular BSR or Preemptive BSR) followed by a BSR with a higher priority (Preemptive BSR or Rel-15regular BSR), the IAB node may restart the SR procedure according to the LCH with the highest priority triggering the BSR with the higher priority, for example, the IAB node does not receive grant from the parent IAB node, may cancel the ongoing SR procedure, determine a new SR resource according to the LCH with the highest priority triggering the BSR with the higher priority, and start the SR procedure. Here, the LCH of the highest priority that triggers the BSR of higher priority may be understood as the priority of the LCH of the highest priority data to be transmitted or data expected to be transmitted in the BSR MAC CE.

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

a sending module 501, configured to send target report information in a 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:

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, and the second buffer report is report information in the first BSR except for the first buffer report.

Optionally, when the second preset rule is rule 1, a protocol agrees with an arrangement order 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:

the determining module is used for determining new scheduling request resources according to a logic channel with the highest priority of a second object under the condition that the authorization corresponding to a first scheduling request triggered by a first object is not received and the second object with the 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 in the logical channels to which data is to be transmitted or data expected 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 for avoiding repetition, details are not described here, and the resource overhead of configuration 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: a processor 601, a transceiver 602, a memory 603, and a bus interface, wherein:

a transceiver 602, configured to send target report information in a 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:

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 is not described here again to avoid repetition.

In fig. 6, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 601 and various circuits of memory represented by memory 603 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 602 may be a number of elements including a transmitter and a receiver that provide 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 a desired device for different user devices, 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, an embodiment of the present invention further provides a network device, which includes 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 above BSR reporting method embodiment, and can achieve the same technical effect, and is not described herein again to avoid repetition.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the BSR reporting method embodiment on the network device side provided in the embodiment of the present invention, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A BSR reporting method for a self-backhauled IAB network is applied to a network device, and the BSR reporting method comprises the following steps:

wherein the target report information satisfies at least one of:

2. The method according to claim 1, wherein the first preset rule comprises:

3. The method according to claim 1, wherein the first preset rule comprises:

4. The method according to claim 1, wherein the second preset rule comprises any one of:

5. The method according to claim 4, wherein if the second predetermined rule is rule 3, the resource allocation priority of the second MAC CE is specified by a protocol to be higher than the resource allocation priority of the first MAC CE.

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

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

8. The method as claimed in claim 4, wherein if the second predetermined rule is rule 1, the first MAC CE and the second MAC CE are arranged in the order specified 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 sending the target report information in a 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 among logical channels to which data is to be transmitted or data expected to be transmitted.

13. A network device, comprising:

wherein the target report information satisfies at least one of:

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

15. A computer-readable storage medium, characterized in that a computer program is stored thereon, which, when being executed by a processor, carries out the steps of the BSR reporting method according to any one of claims 1 to 12.