WO2018141253A1 - Method for obtaining and reporting buffer status, network side device and terminal - Google Patents

Abstract

The present application discloses a method for obtaining and reporting buffer status, a network side device and a terminal, the method comprising: a network side device determining a mapping relationship between different bearers and/or logical channels and logical channel groups (LCGs), and sending the mapping relationship to a terminal, the terminal making a triggering determination of the buffer status report (BSR), and if it is determined to trigger, performing the BSR according to the configuration of the terminal made by the network side device. Thus, the technical problem in the prior art of how to perform the BSR in the case of different numerology and/or TTIs corresponding to different bearers and/or logical channels, or in the case of a plurality of coexisting numerologies and/or TTIs.

Description

Method for obtaining and reporting buffer status, network side device, and terminal

This application claims the priority of the Chinese Patent Application filed on February 3, 2017, the Chinese Patent Office, the application number is 201710063667.X, and the application name is "the method of obtaining and reporting the buffer status, the network side device, and the terminal". The entire contents are incorporated herein by reference.

Technical field

The present application relates to the field of communications, and in particular, to a method for obtaining and reporting a buffer status, a network side device, and a terminal.

Background technique

1. The BSR (Buffer Status Report) mechanism of the LTE (Long Term Evolution) system.

The LTE system is a scheduling-based system. The base station allocates time-frequency resources required for data transmission to the terminal device, and the terminal performs downlink data reception or uplink data transmission according to the scheduling command of the base station. The uplink data transmission is scheduled by the base station, and the base station scheduler notifies the terminal through the UL grant (uplink scheduling permission) after determining the uplink resource allocation situation. The basis for the uplink resource allocation by the base station scheduler is the amount of uplink data to be sent by the terminal, that is, the buffer status of the terminal. The buffer is on the terminal side, and if the base station wants to know the information, the terminal needs to perform BSR to the base station. The BSR mechanism in LTE Rel-11 and earlier versions is as follows:

The granularity reported by the BSR.

The BSR reporting of the LTE system is based on the LCG (logical channel group), and a total of four LCGs are defined. The LCG ID (identification) corresponding to the bearer and/or logical channel is configured when the bearer is established.

BSR related RRC layer parameter configuration.

The parameters configured by the RRC layer for the BSR in the LTE system include the following two timers, which are all configured and maintained based on the UE:

retxBSR-Timer: Disables the timer reported by the BSR.

periodicBSR-Timer: The timer reported by the periodic BSR.

BSR classification and triggering mechanism.

Regular BSR (Regular BSR): (1) Triggered when there is data with higher priority than the data in the current buffer or the buffer is empty; (2) retxBSR-Timer times out and is buffered Fires when there is data in it.

Periodic BSR: Periodic BSR is triggered when the periodBSR-Timer times out.

Padding BSR: If the UE is in the organization of a MAC PDU (Medium Access Control Protocol Data Unit), in addition to the data to be transmitted, there is a resource available (Padding), which can trigger the Padding BSR.

BSR reporting principles.

If there is more than one LCG available for the regular BSR and the Periodic BSR, the long BSR is reported, otherwise the short BSR is reported;

For the Padding BSR, if the number of Padding bits is greater than or equal to (short BSR+MAC subheader) but less than (long BSR+MAC subheader), if the UE (terminal, also called user equipment) has more than one LCG, data is available. If the Padding bit is greater than or equal to (long BSR+MAC subheader), the long BSR is reported.

After the BSR is triggered, both the periodic BSR and the Padding BSR can be reported when the uplink resource is available. The regular BSR triggers the SR (Scheduling Request) process when the uplink resource is available, and requests the base station to allocate uplink resources to the UE.

After the base station allocates the uplink resource to the UE, if the resource is just enough to send all the uplink data, the base station may send the uplink data without sending the BSR; if the resource is insufficient to send all the uplink data, the regular BSR or the periodic BSR is preferentially reported, and the base station according to the BSR The uplink data amount required by the reported UE is used for subsequent transmission scheduling.

A MAC PDU contains at most one BSR. BSR priority: Regular BSR=Periodic BSR>Padding BSR. If multiple BSRs are triggered at the same time, only the highest priority is reported. For the Regular BSR and the Periodic BSR, the content of all available data in the UE buffer is included because the reported content is the same. , the reporting format is exactly the same, you can choose one of the reports. When the MAC layer organizes the MAC PDU, the two types of MAC CEs are preferentially placed, and then the MAC SDU is placed.

The Padding BSR has a lower priority than the data. The Padding BSR and the regular/periodic BSR can be reported in different MAC PDUs in the same subframe.

Processing after the BSR is reported.

As long as the BSR is triggered and can be reported, start or restart periodicBSR-Timer and retxBSR-Timer, but

Note that for a truncated BSR, you cannot start/restart the periodBSR-Timer and only start or restart the retxBSR-Timer.

BSR report format.

The BSR is reported in the form of a MAC CE (Media Control Element Control Unit). The BSR is divided into two parts: the MAC sub-header and the MAC CE. The BSR MAC CE includes the long BSR and the short BSR. The truncated BSR and the short BSR are used. The format is the same.

For the BSR report, the difference between the R10/11 version and the R8/9 version is that the R10/11 version introduces a new BS table (table) because it supports carrier aggregation and peak rate increase. Whether the R1/11-capable UE reports the BSR whether to use the new BS table is configured by the base station through RRC signaling. Both the BS table of R8/9 and the BS table of R10/11 are 64-level quantization, that is, the corresponding quantized value can be represented by 6 bits, so the buffer size of each LCG in the above BSR MAC CE format is 6 bits.

2. Introduction to NR (New Radio) system.

The NR system physical layer supports multiple numerology and/or TTI. The concepts of Numerology and TTI are as follows:

Numerology is a term for 3GPP RAN1, the baseband parameter. The main difference between different numerologies is that the subcarrier spacing supported by different numerology is different. For example, the subcarrier spacing supported by the 5G NR (New Radio) system includes at least: 15 kHz, 60 kHz, and the numerology corresponding to the two different subcarrier spacings is two independent numerologies. In general, the numerology used by high-speed terminals is different from the numerology used by low-speed terminals; the numerology used for high-frequency and low-frequency is also different. The use of different numerologies is related to speed and frequency. There is also an understanding in the industry that the numerology that can be used by different services may also be different. For example, low latency, high reliability communication URLLC and enhanced mobile broadband eMBB may be different.

TTI is the Transmission Time Interval. In a conventional LTE system, the TTI length is 1 ms. Starting from LTE R14, in order to support delay reduction, different TTI lengths, such as one OFDM (Orthogonal Frequency Division Multiplexing) symbol length, are introduced. Different TTI lengths are used in 5G systems and can be applied to each numerology. That is, different numerologies in 5G NR can use different TTI lengths, and can also use the same TTI length, and can be used for different terminals on a certain numerology at any one time. The TTI length can be dynamically varied. The selection of the length of the TTI is mainly related to the service delay. For example, the URLLC service may have a shorter TTI length, such as the TTI length of one OFDM symbol, because the delay requirement is relatively high.

For the NR system, a numerology and/or a TTI corresponding to a bearer and/or a logical channel is configured through a network, for example, the numerology corresponding to the bearer and/or the logical channel can be configured by the RRC signaling when the bearer and/or the logical channel is established. And/or TTI, the numerology and/or TTI corresponding to a bearer and/or logical channel may also be modified through an RRC reconfiguration procedure.

For the LTE system, if only one numerology and/or TTI is supported, all bearer and/or logical channel data of the terminal are transmitted through the numerology and/or TTI, so the LTE system directly maps all bearers and/or logical channels to 4 LCG.

In summary, the prior art has at least the following technical problem: how to perform buffer status when different numerology and/or TTI of different bearers and/or logical channels are different, or in a scenario where multiple numerology and/or TTI coexist Reported.

Summary of the invention

The embodiment of the present application provides a method for obtaining and reporting a buffer status, a network side device, and a terminal, where the numerology and/or TTI corresponding to different bearers and/or logical channels are different in the prior art, or In the scenario where multiple numerology and/or TTI coexist, how to perform buffer status reporting technical problems.

In a first aspect, an embodiment of the present application provides a method for obtaining a buffer status, which is applied to a network side device, and includes:

And grouping at least one bearer and/or logical channel corresponding to the terminal, to obtain at least one primary group;

Grouping each of the at least one primary group to obtain at least one secondary group;

Determining a first mapping relationship, that is, determining a first mapping relationship of each bearer and/or logical channel and the at least one secondary group in each of the at least one secondary group;

Sending the first mapping relationship to the terminal;

Receiving, by the terminal, a first message that is sent to the network side device and is used to represent a buffer status of the terminal, according to the first mapping relationship;

And obtaining, according to the first message, a buffer status of the terminal.

Optionally, the at least one bearer and/or logical channel corresponding to the terminal is grouped to obtain at least one primary group, specifically:

The bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal that can use the same baseband parameter and/or transmission time interval is divided into the same level group to obtain at least one level group.

Optionally, the bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal that can use the same baseband parameter and/or transmission time interval is divided into the same first group to obtain At least one level group, specifically:

Obtaining a second mapping relationship, that is, obtaining a second mapping relationship between at least one bearer and/or logical channel corresponding to the terminal and a baseband parameter and/or a transmission time interval;

And according to the second mapping relationship, the bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal that can use the same baseband parameter and/or transmission time interval is divided into the same first group, Obtain at least one primary group.

Optionally, the grouping each of the at least one primary group to obtain at least one secondary group is specifically:

Each of the at least one primary group is grouped according to all and part of the parameter requirements of the service quality of service QoS, and at least one secondary group is obtained, and each of the at least one secondary group The group is a logical channel group LCG.

Optionally, the method further includes:

Each of the secondary groups corresponds to a unique identifier.

Optionally, the method further includes:

The unique identifier corresponding to each secondary group is numbered in an incremental manner;

Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. The combination of the secondary group identifiers in the primary group.

Optionally, the sending the first mapping relationship to the terminal is specifically:

The first mapping relationship is sent to the terminal by using a radio resource control RRC, a medium access layer MAC, or physical layer signaling.

In a second aspect, an embodiment of the present application provides a network side device, including:

a first grouping module, configured to group at least one bearer and/or logical channel corresponding to the terminal, to obtain at least one primary group;

a second grouping module, configured to group each of the at least one level group to obtain at least one level group;

a first determining module, configured to determine a first mapping relationship, that is, determine each bearer and/or logical channel and each of the at least one secondary group in each of the at least one secondary group Mapping relations;

a first sending module, configured to send the first mapping relationship to the terminal;

a first receiving module, configured to receive, by the terminal, a first message that is sent to the network side device by the terminal to represent a buffer status of the terminal;

And a first obtaining module, configured to obtain, according to the first message, a buffer status of the terminal.

Optionally, the first grouping module includes:

a first grouping sub-module, configured to allocate, to the same first group, bearers and/or logical channels in the at least one bearer and/or logical channel corresponding to the terminal that can use the same baseband parameter and/or transmission time interval, Obtain at least one primary group.

Optionally, the first grouping submodule includes:

a first obtaining unit, configured to obtain a second mapping relationship, that is, obtain a second mapping relationship between at least one bearer and/or logical channel corresponding to the terminal and a baseband parameter and/or a transmission time interval;

a first grouping unit, configured to, according to the second mapping relationship, a bearer and/or a logical channel that can use the same baseband parameter and/or transmission time interval in at least one bearer and/or logical channel corresponding to the terminal Go to the same level group to get at least one level group.

Optionally, the second grouping module includes:

a second grouping sub-module, configured to group each of the at least one level group according to all and part of parameter requirements of the service quality of service QoS, to obtain at least one level group, wherein the at least one Each of the secondary groups in a secondary group is a logical channel group LCG.

Optionally, each of the secondary groups corresponds to a unique identifier.

Optionally, the unique identity corresponding to each secondary group is numbered in an incremental manner;

Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. The combination of the secondary group identifiers in the primary group.

Optionally, the first sending module includes:

The first sending submodule is configured to send the first mapping relationship to the terminal by using a radio resource control RRC, a medium access layer MAC, or physical layer signaling.

In a third aspect, an embodiment of the present application provides a method for reporting a buffer status, which is applied to a terminal, and includes:

Receiving, by the network side device, a first mapping relationship for characterizing a correspondence between the at least one bearer and/or the logical channel and the at least one logical channel group LCG;

Determine whether the buffer status meets the trigger condition of the BSR reported by the buffer status;

If yes, the first message for characterizing the buffer status is reported to the network side device based on the first mapping relationship.

Optionally, the first mapping relationship is specifically:

The network side device obtains at least one primary group by grouping at least one bearer and/or logical channel corresponding to the terminal, and each of the at least one primary group includes at least one secondary group. The first mapping relationship is used to represent a mapping relationship between each bearer and/or logical channel and at least one secondary group in the at least one secondary group, where one of the secondary groups is a The logical channel group LCG.

Optionally, the triggering conditions include:

a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR;

And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR;

And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR.

Optionally, the triggering conditions include:

a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The baseband parameters corresponding to the bearer and/or logical channel and/or the priority of all bearers and/or logical channels currently serving the transmission, or the baseband parameters corresponding to the bearer and/or logical channel of the first data arrival And when there is no data in the buffer of all bearers and/or logical channels currently corresponding to the transmission time interval, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer of the first data arrives and/or When the timer that is forbidden to be reported by the BSR is timed out, the normal buffer status is reported to the BSR.

And/or, the fifth trigger condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group times out, triggering the periodic buffer status to report the BSR;

And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR.

Optionally, the reporting, by the network side device, the first message used to identify the buffer status, specifically:

When the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG, the length of the first message is fixed length.

Optionally, when the first message for characterizing the buffer status is reported to the network side device based on the one of the logical channel groups, the logical channel group LCG for reporting the BSR of the trigger buffer status is reported only. The first message of the buffer status, or only the first message used to characterize the buffer status of the highest priority logical channel group LCG.

Optionally, the reporting, by the network side device, the first message used to identify the buffer status, specifically:

When the first message for characterizing the buffer status is reported to the network side device based on the at least two logical channel groups LCG, the length of the first message is fixed length or variable length.

Optionally, when the length of the first message is a fixed length, reporting, to the network side device, a buffer state for characterizing M logical channel groups LCG of the at least two logical channel groups LCG a message;

The M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset maximum logical channel that the network side device can configure for the terminal. The number of groups of LCGs.

Optionally, when the length of the first message is longer, reporting, to the network side device, a buffer state for characterizing M logical channel groups LCG of the at least two logical channel groups LCG a message in which the maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited.

Optionally, the first message is divided into a media access layer MAC subheader and a media access layer control unit MAC CE. When the length of the first message is longer, the first message is sent. And including second information for indicating a length of the BSR MAC CE reported by the buffer status corresponding to the first message.

Optionally, each of the secondary groups corresponds to a unique identifier.

Optionally, the unique identifier corresponding to each secondary group is numbered in an incremental manner;

Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. A combination of secondary group IDs.

Optionally, for the unique identifier corresponding to each secondary group, the first message needs to carry a buffer status indication corresponding to the unique identifier of the secondary group.

In a fourth aspect, an embodiment of the present application provides a terminal, including:

a second receiving module, configured to receive, by the network side device, a first mapping relationship used to represent a correspondence between the at least one bearer and/or the logical channel and the at least one logical channel group LCG;

a first determining module, configured to determine whether a buffer status meets a trigger condition for reporting a BSR in a buffer status;

If yes, the first reporting module is configured to report, by using the first mapping relationship, the first message used to represent the buffer status to the network side device.

Optionally, the first mapping relationship is specifically:

The network side device obtains at least one primary group by grouping at least one bearer and/or logical channel corresponding to the terminal, and each of the at least one primary group includes at least one secondary group. The first mapping relationship is used to represent a mapping relationship between each bearer and/or logical channel and at least one secondary group in the at least one secondary group, where one of the secondary groups is a The logical channel group LCG.

Optionally, the triggering conditions include:

a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR;

And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR;

And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR.

Optionally, the triggering conditions include:

a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The baseband parameters corresponding to the bearer and/or logical channel and/or the priority of all bearers and/or logical channels currently serving the transmission, or the baseband parameters corresponding to the bearer and/or logical channel of the first data arrival And when there is no data in the buffer of all bearers and/or logical channels currently corresponding to the transmission time interval, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer of the first data arrives and/or When the timer that is forbidden to be reported by the BSR is timed out, the normal buffer status is reported to the BSR.

And/or the fifth triggering condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group expires, the periodic buffer status is reported to the BSR;

And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR.

Optionally, the first reporting module includes:

The first reporting sub-module is configured to: when the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG, wherein the length of the first message is fixed length.

Optionally, the first reporting submodule includes:

The first reporting unit is configured to report only the logical channel for reporting the BSR of the trigger buffer status when the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG The first message of the buffer status of the group LCG, or only the first message for characterizing the buffer status of the logical channel group LCG with the highest priority.

Optionally, the first reporting module includes:

a second reporting sub-module, configured to report a first message for characterizing the buffer status to the network side device based on the at least two logical channel groups LCG, where a length of the first message is Long or long.

Optionally, the second reporting submodule includes:

a second reporting unit, configured to report, to the network side device, a buffer for characterizing M logical channel groups LCG in the at least two logical channel groups LCG when the length of the first message is a fixed length The first message of the status;

The M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset maximum logical channel that the network side device can configure for the terminal. The number of groups of LCGs.

Optionally, the second reporting submodule includes:

a third reporting unit, configured to report, to the network side device, a buffer for characterizing M logical channel groups LCG in the at least two logical channel groups LCG when the length of the first message is longer The first message of the state, where the maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited.

Optionally, the first message is divided into a media access layer MAC subheader and a media access layer control unit MAC CE. When the length of the first message is longer, the first message is sent. And including second information for indicating a length of the buffer status reported by the first message to the BSR MAC CE.

Optionally, each of the secondary groups corresponds to a unique identifier.

Optionally, the unique identifier corresponding to each secondary group is numbered in an incremental manner;

Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. A combination of secondary group IDs.

Optionally, for the unique identifier corresponding to each secondary group, the first message needs to carry a buffer status indication corresponding to the unique identifier of the secondary group.

In a fifth aspect, an embodiment of the present application provides a network side device, including: a processor, a memory, and a transceiver;

A processor that reads a program in memory and performs the following procedures:

And grouping at least one bearer and/or logical channel corresponding to the terminal to obtain at least one primary group; grouping each primary group in the at least one primary group to obtain at least one secondary group; determining a first mapping relationship, that is, determining a first mapping relationship of each bearer and/or logical channel and the at least one secondary group in each of the at least one secondary group; sending the first Mapping the relationship to the terminal; receiving, by the terminal, the first message that is sent to the network side device to represent the buffer status of the terminal, and obtaining, according to the first message, the buffer of the terminal Zone status.

Optionally, the processor is specifically configured to:

The bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal that can use the same baseband parameter and/or transmission time interval is divided into the same level group to obtain at least one level group.

Optionally, the processor is specifically configured to:

Obtaining a second mapping relationship, that is, obtaining a second mapping relationship between at least one bearer and/or logical channel corresponding to the terminal and a baseband parameter and/or a transmission time interval; and using the terminal according to the second mapping relationship The bearers and/or logical channels in the corresponding at least one bearer and/or logical channel that can use the same baseband parameters and/or transmission time intervals are assigned to the same primary group to obtain at least one primary group.

Optionally, the processor is specifically configured to:

Each of the at least one primary group is grouped according to all and part of parameter requirements of the service quality of service QoS, and at least one secondary group is obtained, wherein each of the at least one secondary group The secondary group is the logical channel group LCG.

Optionally, each of the secondary groups corresponds to a unique identifier.

Optionally, the unique identity corresponding to each secondary group is numbered in an incremental manner;

Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. The combination of the secondary group identifiers in the primary group.

Optionally, the processor is specifically configured to:

The first mapping relationship is sent to the terminal by using a radio resource control RRC, a medium access layer MAC, or physical layer signaling.

In a sixth aspect, an embodiment of the present application provides a terminal, including: a processor, a memory, and a transceiver;

A processor that reads a program in memory and performs the following procedures:

Receiving, by the network side device, a first mapping relationship for characterizing a correspondence between the at least one bearer and/or the logical channel and the at least one logical channel group LCG; determining whether the buffer status satisfies a trigger condition for reporting the BSR in the buffer status; And reporting, according to the first mapping relationship, a first message for characterizing the buffer status to the network side device.

Optionally, the first mapping relationship is specifically:

The network side device obtains at least one primary group by grouping at least one bearer and/or logical channel corresponding to the terminal, and each of the at least one primary group includes at least one secondary group. The first mapping relationship is used to represent a mapping relationship between each bearer and/or logical channel and at least one secondary group in the at least one secondary group, where one of the secondary groups is a The logical channel group LCG.

Optionally, the triggering conditions include:

a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR;

And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR;

And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR.

Optionally, the triggering conditions include:

a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The baseband parameters corresponding to the bearer and/or logical channel and/or the priority of all bearers and/or logical channels currently serving the transmission, or the baseband parameters corresponding to the bearer and/or logical channel of the first data arrival And when there is no data in the buffer of all bearers and/or logical channels currently corresponding to the transmission time interval, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer of the first data arrives and/or When the timer that is forbidden to be reported by the BSR is timed out, the normal buffer status is reported to the BSR.

And/or the fifth triggering condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group expires, the periodic buffer status is reported to the BSR;

And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR.

Optionally, the processor is specifically configured to:

When the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG, wherein the length of the first message is fixed length.

Optionally, the processor is specifically configured to:

When the first message for characterizing the buffer status is reported to the network side device based on the logical channel group LCG, only the buffer status of the logical channel group LCG for reporting the BSR of the trigger buffer status is reported. The first message, or only the first message used to characterize the buffer status of the highest priority logical channel group LCG.

Optionally, the processor is specifically configured to:

When the first message for characterizing the buffer status is reported to the network side device based on the at least two logical channel groups LCG, wherein the length of the first message is fixed length or variable length.

Optionally, the processor is specifically configured to:

When the length of the first message is a fixed length, reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG;

The M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset maximum logical channel that the network side device can configure for the terminal. The number of groups of LCGs.

Optionally, the processor is specifically configured to:

And reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG, where the length of the first message is longer. The maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited.

Optionally, the first message is divided into a media access layer MAC subheader and a media access layer control unit MAC CE. When the length of the first message is longer, the first message is sent. And including second information for indicating a length of the buffer status reported by the first message to the BSR MAC CE.

Optionally, each of the secondary groups corresponds to a unique identifier.

Optionally, the unique identifier corresponding to each secondary group is numbered in an incremental manner;

Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. A combination of secondary group IDs.

Optionally, for the unique identifier corresponding to each secondary group, the first message needs to carry a buffer status indication corresponding to the unique identifier of the secondary group.

In a seventh aspect, an embodiment of the present application provides a cache synchronization abnormal device readable storage medium, including program code, when the program code is run on a computing device, the program code is used to cause the computing device to perform A step of any one of the methods of the method or a method of any of the methods of the third aspect.

One or more technical solutions provided in the embodiments of the present application solve the scenario in the prior art when different numerologies and/or TTIs of different bearers and/or logical channels are different, or multiple numerologies and/or TTIs coexist. Under the circumstance, how to perform buffer status reporting technical problems; achieve flexible support for multi-service coexistence and data transmission in high-frequency/high-speed scenarios, and flexibly support technical effects of multiple numerology and/or TTI coexistence.

DRAWINGS

1 is a format of a MAC subheader in the prior art;

2 is a short BSR and truncated BSR MAC CE format in the prior art;

3 is a long BSR MAC CE format in the prior art;

4 is a flowchart of a method for obtaining a buffer state according to Embodiment 1 of the present application;

5 is a schematic diagram of a network side device according to Embodiment 2 of the present application;

6 is a flowchart of a method for reporting a buffer status in Embodiment 3 of the present application;

7 is a schematic diagram of a terminal in Embodiment 4 of the present application;

8 is a schematic diagram of obtaining, by a network side, a buffer status reported by a terminal according to Embodiment 5 of the present application;

9 is a schematic diagram of obtaining, by a network side, a buffer status reported by a terminal according to Embodiment 6 of the present application;

10 is a schematic diagram of a network side device in Embodiment 7 of the present application;

FIG. 11 is a schematic diagram of a terminal in Embodiment 8 of the present application.

detailed description

The format of the MAC subheader and the BSR MAC CE in the LTE system in the prior art is as shown in FIG. 1, FIG. 2 and FIG.

The meaning of each field is as follows:

LCID (Logical Channel ID): A logical channel number used to identify the corresponding load part. The long BSR, short BSR, and truncated BSR each have an LCID.

E: Extension bit, used to indicate whether the next byte is a MAC subheader or a MAC payload.

R: Reserved bits.

LCG ID:. In the LTE system, four logical channel groups are divided when reporting BSR.

Buffer Size#0, B logical channel group number uffer Size#1, Buffer Size#2, Buffer Size#3: The amount of buffer data corresponding to each logical channel group.

Oct1, Oct2, and Oct3 are: byte 1, byte 2, and byte 3.

In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the drawings and specific embodiments.

The embodiment of the present application provides a method for obtaining and reporting a buffer status, a network side device, and a terminal, where the network side device determines a mapping relationship between different bearers and/or logical channels and a logical channel group LCG, and maps the mapping The relationship is sent to the terminal, and the terminal performs a buffer status report BSR triggering judgment. When the judgment is triggered, the BSR is reported in the buffer state according to the configuration of the terminal by the network side device. Therefore, in the prior art, when the numerology and/or the TTI corresponding to different bearers and/or logical channels are different, or in the scenario where multiple numerology and/or TTI coexist, how to perform the buffer state reporting technical problem.

Embodiment 1

Referring to FIG. 4, a first embodiment of the present application provides a method for obtaining a buffer status, which is applied to a network side device, and includes the following steps:

S101. Group at least one bearer and/or logical channel corresponding to the terminal, to obtain at least one primary group.

S102. Group each of the at least one primary group to obtain at least one secondary group.

S103. Determine a first mapping relationship, that is, determine a first mapping relationship between each bearer and/or logical channel and each of the at least one secondary group in each of the at least one secondary group.

S104. Send the first mapping relationship to the terminal.

S105. Receive a first message that is sent by the terminal to the network side device to indicate a buffer status of the terminal, according to the first mapping relationship.

S106. Obtain a buffer status of the terminal based on the first message.

The step S101 is specifically:

The bearer and/or logical channels of the at least one bearer and/or logical channel corresponding to the terminal that can use the same numerology and/or TTI are grouped into the same tier to obtain at least one tier. Specifically, for example, obtaining a second mapping relationship, that is, obtaining a second mapping relationship between the at least one bearer and/or logical channel corresponding to the terminal, and numerology and/or TTI;

And according to the second mapping relationship, the bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal that can use the same numerology and/or TTI is divided into the same first group to obtain at least A first-level group.

The step S102 is specifically:

Each of the at least one primary group is grouped according to all and part of the parameter requirements of the service quality of service QoS, and at least one secondary group is obtained, and each of the at least one secondary group The group is a logical channel group LCG.

Specifically, each of the secondary groups corresponds to a unique identifier. To ensure the uniqueness of the LCG identity, you can use the following two methods to set the identity of the LCG:

Manner 1: The unique identifier corresponding to each secondary group is numbered in an incremental manner; for example, each LCG grouped after all bearers and/or logical channels of one terminal is numbered in an incremental manner to set The identity of each LCG.

Manner 2: The unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the secondary group The combination of the secondary group identifiers in the corresponding primary group; specifically, for example, the two-level identifier is used: the primary group identifier + the LCG identifier (ie, the secondary group identifier). The first-level group identifier may have multiple possibilities, for example, it may be a newly introduced identifier on the network side, or may be a numerology and/or a TTI identifier.

The step S104 is specifically as follows:

The first mapping relationship is sent to the terminal by using a radio resource control RRC, a medium access layer MAC, or physical layer signaling.

Embodiment 2

Referring to FIG. 5, a first embodiment of the present application provides a network side device, including:

The first grouping module 101 is configured to group at least one bearer and/or logical channel corresponding to the terminal to obtain at least one primary group;

a second grouping module 102, configured to group each of the at least one level group to obtain at least one level group;

a first determining module 103, configured to determine a first mapping relationship, that is, determine each bearer and/or logical channel and each of the at least one secondary group in each of the at least one secondary group a mapping relationship;

The first sending module 104 is configured to send the first mapping relationship to the terminal;

The first receiving module 105 is configured to receive, by using the first mapping relationship, the first message that is sent by the terminal to the network side device to represent a buffer status of the terminal;

The first obtaining module 106 is configured to obtain, according to the first message, a buffer status of the terminal.

The first grouping module 101 includes:

a first grouping sub-module, configured to allocate at least one bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal to the same first group by using the same numerology and/or TTI A first-level group.

The first grouping submodule includes:

a first obtaining unit, configured to obtain a second mapping relationship, that is, obtain a second mapping relationship between the at least one bearer and/or logical channel corresponding to the terminal, and the numerology and/or the TTI;

a first grouping unit, configured to divide, according to the second mapping relationship, a bearer and/or a logical channel that can use the same numerology and/or TTI in at least one bearer and/or logical channel corresponding to the terminal to be the same Level one group to get at least one level group.

The second grouping module 102 includes:

a second grouping sub-module, configured to group each of the at least one level group according to all and part of parameter requirements of the service quality of service QoS, to obtain at least one level group, wherein the at least one Each of the secondary groups in a secondary group is a logical channel group LCG.

Specifically, each of the secondary groups corresponds to a unique identifier. To ensure the uniqueness of the LCG identity, you can use the following two methods to set the identity of the LCG:

Method 1: The unique identifier corresponding to each secondary group is numbered in an incremental manner by the network side device. Specifically, for example, each of the bearers and/or the logical channel grouped by one terminal is incremented by number incrementing. Number to set the identity of each LCG.

Manner 2: The unique identifier corresponding to each secondary group of the network side device is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located. The combination of the secondary group identifiers in the primary group corresponding to the secondary group; specifically, for example, the two-level identifier is used: the primary group identifier + the LCG identifier (ie, the secondary group identifier). The first-level group identifier may have multiple possibilities, for example, it may be a newly introduced identifier on the network side, or may be a numerology and/or a TTI identifier.

The first sending module 104 includes:

The first sending submodule is configured to send the first mapping relationship to the terminal by using a radio resource control RRC, a medium access layer MAC, or physical layer signaling.

Embodiment 3

Referring to FIG. 6, a third real-time example of the present application provides a method for reporting a buffer status, which is applied to a terminal, and includes the following steps:

S201. Receive a first mapping relationship that is sent by the network side device and is used to represent a correspondence between the at least one bearer and/or the logical channel and the at least one logical channel group LCG.

S202. Determine whether the buffer status meets a trigger condition for reporting the BSR in the buffer status.

S203. If yes, report, according to the first mapping relationship, a first message used to represent the buffer status to the network side device.

The first mapping relationship in the step S201 is specifically:

The network side device obtains at least one primary group by grouping at least one bearer and/or logical channel corresponding to the terminal, and each of the at least one primary group includes at least one secondary group. The first mapping relationship is used to represent a mapping relationship between each bearer and/or logical channel and at least one secondary group in the at least one secondary group, where one of the secondary groups is a The logical channel group LCG.

The triggering condition in the step S202 can be used for the BSR triggering condition of the LTE, that is, the BSR triggering determination is performed based on the terminal, where the first scenario of the triggering condition includes:

a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR;

And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR;

And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR.

The terminal may also use the new BSR trigger condition in the step S202, and the second situation of the trigger condition includes:

a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The bearer and/or logical channel corresponding to the numerology and/or the priority of all bearers and/or logical channels currently served by the TTI, or the numerology and/or TTI corresponding to the bearer and/or logical channel to which the first data arrives When there is no data in the buffer of all the corresponding bearers and/or logical channels, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer and/or the logical channel corresponding to the first data arrives. When the timer of the BSR is disabled, the BSR is triggered by the normal buffer status.

And/or the fifth triggering condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group expires, the periodic buffer status is reported to the BSR;

And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR.

The first message reported to the network side device for characterizing the buffer status in the step S203 is divided into two cases:

The first case:

When the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG, the length of the first message is fixed length.

Specifically, when the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG, only the buffer for characterizing the logical channel group LCG that reports the BSR of the trigger buffer status is reported. The first message of the zone status, for example for a regular BSR, or only the first message for characterizing the buffer status of the highest priority logical channel group LCG.

The second case:

When the first message for characterizing the buffer status is reported to the network side device based on the at least two logical channel groups LCG, the length of the first message is fixed length or variable length.

When the length of the first message is a fixed length, reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG;

The M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset maximum logical channel that the network side device can configure for the terminal. The number of groups of LCGs.

And reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG, where the length of the first message is longer. The maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited.

In the step S203, when the length of the first message is longer, the first message reporting time is divided into a media access layer MAC subheader and a media access layer control unit MAC CE. A message includes second information for characterizing the length of the BSR MAC CE reported by the buffer status corresponding to the first message.

Each of the secondary groups has a unique identifier. To ensure the uniqueness of the LCG identifier, the identifier of the LCG may be set using, but not limited to, the following two methods:

Method 1: The unique identifier corresponding to each secondary group is numbered in an incremental manner by the network side device. Specifically, for example, each of the bearers and/or the logical channel grouped by one terminal is incremented by number incrementing. Number to set the identity of each LCG.

Manner 2: The unique identifier corresponding to each secondary group of the network side device is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located. The combination of the secondary group identifiers in the primary group corresponding to the secondary group; specifically, for example, the two-level identifier is used: the primary group identifier + the LCG identifier (ie, the secondary group identifier). The first-level group identifier may have multiple possibilities, for example, it may be a newly introduced identifier on the network side, or may be a numerology and/or a TTI identifier.

For the unique identifier corresponding to each of the secondary groups, the first message needs to carry a buffer status indication corresponding to the unique identifier of the secondary group.

Specifically, for example, if the network side numbers each of the LCGs of all the bearers and/or logical channel groups of one terminal by number incrementing, the LCG in the BSR is directly indicated by the LCG number.

If the network side uses the two-level identifier: the first-level group identifier + the LCG identifier (that is, the second-level group identifier), the LCG in the BSR uses the first-level group identifier + the LCG number two-level identifier.

The network side can determine which numerology and/or TTI needs to allocate corresponding resources to the terminal according to the BSR information.

Embodiment 4

Referring to FIG. 7, Embodiment 4 of the present application provides a terminal, including:

The second receiving module 201 is configured to receive a first mapping relationship that is sent by the network side device and is used to represent a correspondence between the at least one bearer and/or the logical channel and the at least one logical channel group LCG.

The first determining module 202 is configured to determine whether the buffer status satisfies the trigger condition of reporting the BSR in the buffer status;

If yes, the first reporting module 203 is configured to report, by using the first mapping relationship, the first message used to represent the buffer status to the network side device.

The first mapping relationship is specifically:

The network side device obtains at least one primary group by grouping at least one bearer and/or logical channel corresponding to the terminal, and each of the at least one primary group includes at least one secondary group. The first mapping relationship is used to represent a mapping relationship between each bearer and/or logical channel and at least one secondary group in the at least one secondary group, where one of the secondary groups is a The logical channel group LCG.

The triggering condition may be used for the BSR triggering condition of the LTE, that is, the terminal performs the BSR triggering determination, where the first scenario of the triggering condition includes:

a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR;

And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR;

And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR.

The terminal can also use the new BSR trigger condition, and the second case of the trigger condition includes:

a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The bearer and/or logical channel corresponding to the numerology and/or the priority of all bearers and/or logical channels currently served by the TTI, or the numerology and/or TTI corresponding to the bearer and/or logical channel to which the first data arrives When there is no data in the buffer of all the corresponding bearers and/or logical channels, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer and/or the logical channel corresponding to the first data arrives. When the timer of the BSR is disabled, the BSR is triggered by the normal buffer status.

And/or the fifth triggering condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group expires, the periodic buffer status is reported to the BSR;

And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR.

The first reporting module 203 includes a first reporting submodule and/or a second reporting submodule:

The first reporting sub-module is configured to: when the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG, wherein the length of the first message is fixed length.

Specifically, the first reporting submodule includes:

The first reporting unit is configured to report only the logical channel for reporting the BSR of the trigger buffer status when the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG The first message of the buffer status of the group LCG, for example for a regular BSR, or only the first message for characterizing the buffer status of the highest priority logical channel group LCG.

The first reporting module 203 includes:

a second reporting sub-module, configured to report a first message for characterizing the buffer status to the network side device based on the at least two logical channel groups LCG, where a length of the first message is Long or long.

Specifically, the second reporting submodule includes:

a second reporting unit, configured to report, to the network side device, a buffer for characterizing M logical channel groups LCG in the at least two logical channel groups LCG when the length of the first message is a fixed length The first message of the status;

The M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset maximum logical channel that the network side device can configure for the terminal. The number of groups of LCGs.

Specifically, the second reporting submodule includes:

a third reporting unit, configured to report, to the network side device, a buffer for characterizing M logical channel groups LCG in the at least two logical channel groups LCG when the length of the first message is longer The first message of the state, where the maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited.

When the first report module 203 reports the first message:

The first message is divided into a media access layer MAC subheader and a media access layer control unit MAC CE. When the length of the first message is longer, the first message includes a feature for characterization. The buffer information corresponding to the first message reports the second information of the length of the BSR MAC CE.

There is a unique identifier for each of the secondary groups. To ensure the uniqueness of the LCG identity, you can use the following two methods to set the identity of the LCG:

Method 1: The network side device numbers the unique identifiers corresponding to each of the secondary groups in an incremental manner to set an identifier of each LCG.

Method 2: The network-side device identifies the unique identifier corresponding to each secondary group by a two-level identifier, where the two-level identifier is the first-level group identifier of the first-level group in which each secondary group is located. The combination of the secondary group identifiers corresponding to the secondary group; specifically, for example, the two-level identifier is used: the primary group identifier + the LCG identifier (ie, the secondary group identifier). The first-level group identifier may have multiple possibilities, for example, it may be a newly introduced identifier on the network side, or may be a numerology and/or a TTI identifier.

For the unique identifier corresponding to each of the secondary groups, the first message needs to carry a buffer status indication corresponding to the unique identifier of the secondary group.

Specifically, for example, if the network side numbers each of the LCGs of all the bearers and/or logical channel groups of one terminal by number incrementing, the LCG in the BSR is directly indicated by the LCG number.

If the network side uses the two-level identifier: the first-level group identifier + the LCG identifier (that is, the second-level group identifier), the LCG in the BSR uses the first-level group identifier + the LCG number two-level identifier.

The network side can determine which numerology and/or TTI needs to allocate corresponding resources to the terminal according to the BSR information.

Embodiment 5

Referring to FIG. 8, the network side obtains the buffer status reported by the terminal when the network side sequentially numbers all the LCGs.

The fifth embodiment provides a buffer status that is reported by the network side when the network side uses the sequential numbering of all the LCGs. For example, when the network side device numbers the unique identifiers corresponding to the second level groups in an incremental manner, the network side obtains the buffer status reported by the terminal. The specific steps are as follows:

S301. The network side device determines a second mapping relationship between the bearer and/or the logical channel and the numerology and/or the TTI.

The mapping relationship between the bearer and/or logical channel and the numerology and/or the TTI may be one or a combination of: a QoS requirement of the service, a speed of the terminal, and the like;

S302. The network side device performs the first round of grouping on the bearer and/or the logical channel according to the second mapping relationship.

The first round of packets is that the network side device will be able to use a bearer and/or logical channel of the same numerology and/or TTI, such as RB1, RB2, RB3, and numerology1/TTI 1 and numerology 2/TTI 1 RB4, RB5 can only use numerology 1/TTI 1, RB6 can only use numerology 2/TTI 1, then RB1/RB2/RB3 can be divided into one group, RB4/RB5 is divided into one group, RB6 is divided into one group;

S303. The network side device performs a second round of grouping, and determines a first mapping relationship between the bearer and/or the logical channel and the LCG.

Specifically, all bearers and/or logical channels in a packet may be further divided into one or more LCGs according to service QoS requirements, and each LCG corresponds to a unique LCG identifier;

In order to ensure the uniqueness of the LCG identifier, the network side numbers each LCG of all bearers and/or logical channel groups of one terminal by number incrementing;

S304. The network side device notifies the terminal of the first mapping relationship between the bearer and/or the logical channel and the LCG.

The network side configures the first mapping relationship to the terminal; specifically, may use RRC signaling, MAC layer signaling, or physical layer signaling;

S305: The terminal performs BSR trigger determination based on the trigger condition of the BSR reported by the buffer status.

The triggering condition may be used for the BSR triggering condition of the LTE, that is, the BSR triggering determination based on the terminal, where the first scenario of the triggering condition includes:

a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR;

And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR;

And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR.

The terminal can also use the new BSR trigger condition, and the second case of the trigger condition includes:

a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The bearer and/or logical channel corresponding to the numerology and/or the priority of all bearers and/or logical channels currently served by the TTI, or the numerology and/or TTI corresponding to the bearer and/or logical channel to which the first data arrives When there is no data in the buffer of all the corresponding bearers and/or logical channels, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer and/or the logical channel corresponding to the first data arrives. When the timer of the BSR is disabled, the BSR is triggered by the normal buffer status.

And/or the fifth triggering condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group expires, the periodic buffer status is reported to the BSR;

And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR.

S306: The terminal reports the BSR to the network side device.

The length of the message is fixed length when the first message for characterizing the buffer status is reported to the network side device when the BSR is reported to the network side device. When the first message for characterizing the buffer status is reported to the network side device based on the logical channel group LCG, only the buffer status of the logical channel group LCG for reporting the BSR of the trigger buffer status is reported. The first message, for example for a regular BSR, or only reports the first message used to characterize the buffer status of the highest priority logical channel group LCG.

When the BSR is reported to the network side device based on the at least two logical channel groups, the first message for characterizing the buffer status is reported, wherein the length of the first message is fixed length or lengthened. of. When the length of the first message is a fixed length, reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG; And the M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset logical channel group that the network side device can configure for the terminal. The number of LCGs. And reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG, where the length of the first message is longer. The maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited.

The LCG identifier in the BSR is unique and varies according to the LCG number on the network side. If the network side numbers each of the LCGs of all bearers and/or logical channel groups of a terminal by number incrementing, the LCG in the BSR is directly indicated by the LCG number.

The network side can determine which numerology and/or TTI needs to allocate corresponding resources to the terminal according to the BSR information.

Embodiment 6

Referring to FIG. 9, the network side obtains a buffer status reported by the terminal when the network side uses two-level numbers for all LCGs.

In the fifth embodiment, when the network side uses the two-level numbering for all the LCGs, for example, the network side device obtains the buffers reported by the terminal when the unique identifiers corresponding to the second-level groups are numbered in an incremental manner. The method of the state, the specific steps are as follows:

S401. The network side device determines a second mapping relationship between the bearer and/or the logical channel and the numerology and/or the TTI.

The mapping relationship between the bearer and/or logical channel and the numerology and/or the TTI may be one or a combination of: a QoS requirement of the service, a speed of the terminal, and the like;

S402. The network side device performs a first round of grouping on the bearer and/or the logical channel according to the second mapping relationship.

The first round of packets is that the network side device will be able to use a bearer and/or logical channel of the same numerology and/or TTI, such as RB1, RB2, RB3, and numerology1/TTI 1 and numerology 2/TTI 1 RB4, RB5 can only use numerology 1/TTI 1, RB6 can only use numerology 2/TTI 1, then RB1/RB2/RB3 can be divided into one group, RB4/RB5 is divided into one group, RB6 is divided into one group;

S403. The network side device performs a second round of grouping to determine a first mapping relationship between the bearer and/or the logical channel and the LCG.

Specifically, all bearers and/or logical channels in a packet may be further divided into one or more LCGs according to service QoS requirements, and each LCG corresponds to a unique LCG identifier.

To ensure the uniqueness of the LCG identifier, the network side uses two levels of identifiers: group identifier + LCG identifier. The Group logo can have multiple possibilities. For example, it may be a newly introduced identifier on the network side, or may be a numerology and/or a TTI identifier;

S404. The network side device notifies the terminal of the first mapping relationship between the bearer and/or the logical channel and the LCG.

The network side configures the first mapping relationship to the terminal. Specifically, RRC signaling, MAC layer signaling, or physical layer signaling may be used;

S405: The terminal performs BSR trigger determination based on the trigger condition of the BSR reported by the buffer status.

The triggering condition may be used for the BSR triggering condition of the LTE, that is, the BSR triggering determination based on the terminal, where the first scenario of the triggering condition includes:

a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR;

And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR;

And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR.

The terminal can also use the new BSR trigger condition, and the second case of the trigger condition includes:

a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The bearer and/or logical channel corresponding to the numerology and/or the priority of all bearers and/or logical channels currently served by the TTI, or the numerology and/or TTI corresponding to the bearer and/or logical channel to which the first data arrives When there is no data in the buffer of all the corresponding bearers and/or logical channels, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer and/or the logical channel corresponding to the first data arrives. When the timer of the BSR is disabled, the BSR is triggered by the normal buffer status.

And/or the fifth triggering condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group expires, the periodic buffer status is reported to the BSR;

And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR.

S406: The terminal reports the BSR to the network side device.

The length of the message is fixed length when the first message for characterizing the buffer status is reported to the network side device when the BSR is reported to the network side device. When the first message for characterizing the buffer status is reported to the network side device based on the logical channel group LCG, only the buffer status of the logical channel group LCG for reporting the BSR of the trigger buffer status is reported. The first message, for example for a regular BSR, or only reports the first message used to characterize the buffer status of the highest priority logical channel group LCG.

When the BSR is reported to the network side device based on the at least two logical channel groups, the first message for characterizing the buffer status is reported, wherein the length of the first message is fixed length or lengthened. of. When the length of the first message is a fixed length, reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG; And the M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset logical channel group that the network side device can configure for the terminal. The number of LCGs. And reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG, where the length of the first message is longer. The maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited.

The LCG identifier in the BSR is unique and varies according to the LCG number on the network side. If the network side uses the two-level identifier: the first-level group identifier + the LCG identifier (that is, the second-level group identifier), the LCG in the BSR uses the first-level group identifier + the LCG number two-level identifier.

The network side can determine which numerology and/or TTI needs to allocate corresponding resources to the terminal according to the BSR information.

As shown in Figure 10. The network side device in the seventh embodiment of the present application includes: a processor 1000, a memory 1001, and a transceiver 1002;

The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1001 can store data used by the processor 1000 in performing operations. The transceiver 1002 is configured to receive and transmit data under the control of the processor 1000.

The bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1000 and various circuits of memory represented by memory 1001. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1001 can store data used by the processor 1000 in performing operations.

The flow disclosed in the embodiment of the present invention may be applied to the processor 1000 or implemented by the processor 1000. In the implementation process, each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 1000 or an instruction in the form of software. The processor 1000 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or perform the embodiments of the present invention. Various methods, steps, and logic blocks of the disclosure. A general purpose processor can be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1001, and the processor 1000 reads the information in the memory 1001 and completes the steps of the signal processing flow in conjunction with its hardware.

The processor 1000 is configured to read a program in the memory 1001 and perform the following processes:

And grouping at least one bearer and/or logical channel corresponding to the terminal to obtain at least one primary group; grouping each primary group in the at least one primary group to obtain at least one secondary group; determining a first mapping relationship, that is, determining a first mapping relationship of each bearer and/or logical channel and the at least one secondary group in each of the at least one secondary group; sending the first Mapping the relationship to the terminal; receiving, by the terminal, the first message that is sent to the network side device to represent the buffer status of the terminal, and obtaining, according to the first message, the buffer of the terminal Zone status.

Optionally, the processor 1000 is specifically configured to:

The bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal that can use the same numerology and/or TTI is divided into the same level group to obtain at least one level group.

Optionally, the processor 1000 is specifically configured to:

Obtaining a second mapping relationship, that is, obtaining a second mapping relationship between the at least one bearer and/or logical channel corresponding to the terminal, and the numerology and/or the TTI;

And according to the second mapping relationship, the bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal that can use the same numerology and/or TTI is divided into the same first group to obtain at least A first-level group.

Optionally, the processor 1000 is specifically configured to:

Each of the at least one primary group is grouped according to all and part of parameter requirements of the service quality of service QoS, and at least one secondary group is obtained, wherein each of the at least one secondary group The secondary group is the logical channel group LCG.

Optionally, the processor 1000 is specifically configured to:

Each of the secondary groups corresponds to a unique identifier. To ensure the uniqueness of the LCG identity, you can use the following two methods to set the identity of the LCG:

Method 1: The unique identifier corresponding to each secondary group is numbered in an incremental manner; for example, each LCG grouped by all bearers and/or logical channels of one terminal is numbered in increments. Set the identity of each LCG.

Manner 2: The unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the secondary level The combination of the secondary group identifiers in the first-level group corresponding to the group; specifically, for example, the two-level identifier is used: the primary group identifier + the LCG identifier (that is, the secondary group identifier). The first-level group identifier may have multiple possibilities, for example, it may be a newly introduced identifier on the network side, or may be a numerology and/or a TTI identifier.

Optionally, the processor 1000 is specifically configured to:

The first mapping relationship is sent to the terminal by using a radio resource control RRC, a medium access layer MAC, or physical layer signaling.

As shown in Figure 11, the terminal in the eighth embodiment of the present application includes: a processor 1100, a memory 1101, and a transceiver 1102;

The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1101 can store data used by the processor 1100 in performing operations. The transceiver 1102 is configured to receive and transmit data under the control of the processor 1100.

The bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1100 and various circuits of memory represented by memory 1101. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1101 can store data used by the processor 1100 in performing operations.

The flow disclosed in the embodiment of the present invention may be applied to the processor 1100 or implemented by the processor 1100. In the implementation process, each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 1100 or an instruction in the form of software. The processor 1100 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or perform the embodiments of the present invention. Various methods, steps, and logic blocks of the disclosure. A general purpose processor can be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1101, and the processor 1100 reads the information in the memory 1101 and completes the steps of the signal processing flow in conjunction with its hardware.

The processor 1100 is configured to read a program in the memory 1101 and perform the following processes:

Receiving, by the network side device, a first mapping relationship for characterizing a correspondence between the at least one bearer and/or the logical channel and the at least one logical channel group LCG; determining whether the buffer status satisfies a trigger condition for reporting the BSR in the buffer status; And reporting, according to the first mapping relationship, a first message for characterizing the buffer status to the network side device.

Optionally, the first mapping relationship is specifically:

The network side device obtains at least one primary group by grouping at least one bearer and/or logical channel corresponding to the terminal, and each of the at least one primary group includes at least one secondary group. The first mapping relationship is used to represent a mapping relationship between each bearer and/or logical channel and at least one secondary group in the at least one secondary group, where one of the secondary groups is a The logical channel group LCG.

Optionally, the triggering condition may be used for a BSR triggering condition of the LTE, that is, performing a BSR triggering determination based on the terminal, where the first scenario of the triggering condition includes:

a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR;

And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR;

And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR.

The terminal can also use the new BSR trigger condition, and the second case of the trigger condition includes:

a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The bearer and/or logical channel corresponding to the numerology and/or the priority of all bearers and/or logical channels currently served by the TTI, or the numerology and/or TTI corresponding to the bearer and/or logical channel to which the first data arrives When there is no data in the buffer of all the corresponding bearers and/or logical channels, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer and/or the logical channel corresponding to the first data arrives. When the timer of the BSR is disabled, the BSR is triggered by the normal buffer status.

And/or the fifth triggering condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group expires, the periodic buffer status is reported to the BSR;

And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR.

Optionally, the processor 1100 is specifically configured to:

When the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG, wherein the length of the first message is fixed length.

Optionally, the processor 1100 is specifically configured to:

When the first message for characterizing the buffer status is reported to the network side device based on the logical channel group LCG, only the buffer status of the logical channel group LCG for reporting the BSR of the trigger buffer status is reported. The first message, for example for a regular BSR, or only reports the first message used to characterize the buffer status of the highest priority logical channel group LCG.

Optionally, the processor 1100 is specifically configured to:

When the first message for characterizing the buffer status is reported to the network side device based on the at least two logical channel groups LCG, wherein the length of the first message is fixed length or variable length.

Optionally, the processor 1100 is specifically configured to:

When the length of the first message is a fixed length, reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG;

The M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset maximum logical channel that the network side device can configure for the terminal. The number of groups of LCGs.

Optionally, the processor 1100 is specifically configured to:

And reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG, where the length of the first message is longer. The maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited.

Optionally, the first message is divided into a media access layer MAC subheader and a media access layer control unit MAC CE. When the length of the first message is longer, the first message is sent. And including second information for indicating a length of the buffer status reported by the first message to the BSR MAC CE.

Optionally, each of the secondary groups corresponds to a unique identifier.

Optionally, the unique identifier corresponding to each secondary group is numbered in an incremental manner;

Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. A combination of secondary group IDs.

Optionally, for the unique identifier corresponding to each secondary group, the first message needs to carry a buffer status indication corresponding to the unique identifier of the secondary group.

An embodiment of the present invention provides a readable storage medium, which is a non-volatile storage medium, including program code, when the program code is run on a computing device, the program code is used to make the The computing device performs the actions of the network side device described above.

An embodiment of the present invention provides a readable storage medium, which is a non-volatile storage medium, including program code, when the program code is run on a computing device, the program code is used to make the The computing device performs the actions of the terminal described above.

One or more embodiments of the present application provide a method for obtaining and reporting a buffer status, a network side device, and a terminal, wherein the network side device determines a mapping relationship between different bearers and/or logical channels and a logical channel group LCG, and The mapping relationship is sent to the terminal, and the terminal performs a buffer status report BSR triggering judgment. When the triggering is triggered, the BSR is reported in the buffer state according to the configuration of the terminal by the network side device. Specifically, for example, the network side performs the first round of grouping on the bearer and/or the logical channel according to the bearer and/or logical channel and the numerology and/or the TTI second mapping relationship, and then each group determined for the first round, in the group Performing a second round of grouping, determining a first mapping relationship between each bearer and/or logical channel and the LCG according to the second round of the grouping, and configuring the first mapping relationship to the terminal; the terminal performs BSR triggering condition determination, once When the BSR trigger is determined, the buffer status is reported based on the mapping between the bearer and/or the logical channel and the LCG configured on the network side. By implementing one or more of the foregoing technical solutions, the numerology and/or TTI corresponding to different bearers and/or logical channels are different in the prior art, or in a scenario where multiple numerology and/or TTI coexist. How to perform buffer status reporting technical problems, achieve flexible support for multiple services coexistence and data transmission in high frequency/high speed scenarios, and flexibly support the technical effects of multiple different numerology and/or TTI coexistence.

While the preferred embodiment of the present application has been described, it will be apparent that those skilled in the art can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims (61)

A method for obtaining a buffer state, which is applied to a network side device, and includes: And grouping at least one bearer and/or logical channel corresponding to the terminal, to obtain at least one primary group; Grouping each of the at least one primary group to obtain at least one secondary group; Determining a first mapping relationship, that is, determining a first mapping relationship of each bearer and/or logical channel and the at least one secondary group in each of the at least one secondary group; Sending the first mapping relationship to the terminal; Receiving, by the terminal, a first message that is sent to the network side device and is used to represent a buffer status of the terminal, according to the first mapping relationship; And obtaining, according to the first message, a buffer status of the terminal. The method according to claim 1, wherein the at least one bearer and/or logical channel corresponding to the terminal is grouped to obtain at least one level group, specifically: The bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal that can use the same baseband parameter and/or transmission time interval is divided into the same level group to obtain at least one level group. The method according to claim 2, wherein said bearer and/or logical channel capable of using the same baseband parameter and/or transmission time interval in at least one bearer and/or logical channel corresponding to said terminal Go to the same level group to get at least one level group, specifically: Obtaining a second mapping relationship, that is, obtaining a second mapping relationship between at least one bearer and/or logical channel corresponding to the terminal and a baseband parameter and/or a transmission time interval; And according to the second mapping relationship, the bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal that can use the same baseband parameter and/or transmission time interval is divided into the same first group, Obtain at least one primary group. The method according to claim 1, wherein the grouping each of the at least one level group to obtain at least one level group is specifically: Each of the at least one primary group is grouped according to all and part of the parameter requirements of the service quality of service QoS, and at least one secondary group is obtained, and each of the at least one secondary group The group is a logical channel group LCG. The method of claim 1 further comprising: Each of the secondary groups corresponds to a unique identifier. The method of claim 5, wherein the method further comprises: The unique identifier corresponding to each secondary group is numbered in an incremental manner; Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. The combination of the secondary group identifiers in the primary group. The method according to claim 1, wherein the sending the first mapping relationship to the terminal is specifically: The first mapping relationship is sent to the terminal by using a radio resource control RRC, a medium access layer MAC, or physical layer signaling. A network side device, comprising: a first grouping module, configured to group at least one bearer and/or logical channel corresponding to the terminal, to obtain at least one primary group; a second grouping module, configured to group each of the at least one level group to obtain at least one level group; a first determining module, configured to determine a first mapping relationship, that is, determine each bearer and/or logical channel and each of the at least one secondary group in each of the at least one secondary group Mapping relations; a first sending module, configured to send the first mapping relationship to the terminal; a first receiving module, configured to receive, by the terminal, a first message that is sent to the network side device by the terminal to represent a buffer status of the terminal; And a first obtaining module, configured to obtain, according to the first message, a buffer status of the terminal. The device according to claim 8, wherein the first grouping module comprises: a first grouping sub-module, configured to allocate, to the same first group, bearers and/or logical channels in the at least one bearer and/or logical channel corresponding to the terminal that can use the same baseband parameter and/or transmission time interval, Obtain at least one primary group. The device according to claim 9, wherein the first grouping sub-module comprises: a first obtaining unit, configured to obtain a second mapping relationship, that is, obtain a second mapping relationship between at least one bearer and/or logical channel corresponding to the terminal and a baseband parameter and/or a transmission time interval; a first grouping unit, configured to, according to the second mapping relationship, a bearer and/or a logical channel that can use the same baseband parameter and/or transmission time interval in at least one bearer and/or logical channel corresponding to the terminal Go to the same level group to get at least one level group. The device according to claim 8, wherein the second grouping module comprises: a second grouping sub-module, configured to group each of the at least one level group according to all and part of parameter requirements of the service quality of service QoS, to obtain at least one level group, wherein the at least one Each of the secondary groups in a secondary group is a logical channel group LCG. The device of claim 8 wherein: Each of the secondary groups corresponds to a unique identifier. The device of claim 12 wherein: The unique identity corresponding to each secondary group is numbered in an incremental manner; Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. The combination of the secondary group identifiers in the primary group. The device according to claim 8, wherein the first sending module comprises: The first sending submodule is configured to send the first mapping relationship to the terminal by using a radio resource control RRC, a medium access layer MAC, or physical layer signaling. A method for reporting a buffer status, which is applied to a terminal, and includes: Receiving, by the network side device, a first mapping relationship for characterizing a correspondence between the at least one bearer and/or the logical channel and the at least one logical channel group LCG; Determine whether the buffer status meets the trigger condition of the BSR reported by the buffer status; If yes, the first message for characterizing the buffer status is reported to the network side device based on the first mapping relationship. The method according to claim 15, wherein the first mapping relationship is specifically: The network side device obtains at least one primary group by grouping at least one bearer and/or logical channel corresponding to the terminal, and each of the at least one primary group includes at least one secondary group. The first mapping relationship is used to represent a mapping relationship between each bearer and/or logical channel and at least one secondary group in the at least one secondary group, where one of the secondary groups is a The logical channel group LCG. The method of claim 15 wherein said triggering condition comprises: a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR; And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR; And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR. The method of claim 15 wherein said triggering condition comprises: a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The baseband parameters corresponding to the bearer and/or logical channel and/or the priority of all bearers and/or logical channels currently serving the transmission, or the baseband parameters corresponding to the bearer and/or logical channel of the first data arrival And when there is no data in the buffer of all bearers and/or logical channels currently corresponding to the transmission time interval, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer of the first data arrives and/or When the timer that is forbidden to be reported by the BSR is timed out, the normal buffer status is reported to the BSR. And/or the fifth triggering condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group expires, the periodic buffer status is reported to the BSR; And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR. The method according to claim 15 or 16, wherein the reporting the first message for characterizing the buffer status to the network side device is specifically: When the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG, the length of the first message is fixed length. The method of claim 19 wherein: When the first message for characterizing the buffer status is reported to the network side device based on the logical channel group LCG, only the buffer status of the logical channel group LCG for reporting the BSR of the trigger buffer status is reported. The first message, or only the first message used to characterize the buffer status of the highest priority logical channel group LCG. The method according to claim 15 or 16, wherein the reporting the first message for characterizing the buffer status to the network side device is specifically: When the first message for characterizing the buffer status is reported to the network side device based on the at least two logical channel groups LCG, the length of the first message is fixed length or variable length. The method of claim 21 wherein: When the length of the first message is a fixed length, reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG; The M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset maximum logical channel that the network side device can configure for the terminal. The number of groups of LCGs. The method of claim 21 wherein: And reporting, to the network side device, a first message for characterizing a buffer status of the M logical channel groups LCG of the at least two logical channel groups LCG, where the length of the first message is longer. The maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited. A method according to claim 21 or 23, wherein: The first message is divided into a media access layer MAC subheader and a media access layer control unit MAC CE. When the length of the first message is longer, the first message includes a feature for characterization. The buffer information corresponding to the first message reports the second information of the length of the BSR MAC CE. The method of claim 16 wherein the method further comprises: Each of the secondary groups corresponds to a unique identifier. The method of claim 25, wherein the method further comprises: The unique identifier corresponding to each secondary group is numbered in an incremental manner; Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. A combination of secondary group IDs. A method according to claim 25 or 26, wherein: For the unique identifier corresponding to each of the secondary groups, the first message needs to carry a buffer status indication corresponding to the unique identifier of the secondary group. A terminal, comprising: a second receiving module, configured to receive, by the network side device, a first mapping relationship used to represent a correspondence between the at least one bearer and/or the logical channel and the at least one logical channel group LCG; a first determining module, configured to determine whether a buffer status meets a trigger condition for reporting a BSR in a buffer status; If yes, the first reporting module is configured to report, by using the first mapping relationship, the first message used to represent the buffer status to the network side device. The terminal according to claim 28, wherein the first mapping relationship is specifically: The network side device obtains at least one primary group by grouping at least one bearer and/or logical channel corresponding to the terminal, and each of the at least one primary group includes at least one secondary group. The first mapping relationship is used to represent a mapping relationship between each bearer and/or logical channel and at least one secondary group in the at least one secondary group, where one of the secondary groups is a The logical channel group LCG. The terminal according to claim 28, wherein the triggering condition comprises: a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR; And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR; And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR. The terminal according to claim 28, wherein the triggering condition comprises: a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The baseband parameters corresponding to the bearer and/or logical channel and/or the priority of all bearers and/or logical channels currently serving the transmission, or the baseband parameters corresponding to the bearer and/or logical channel of the first data arrival And when there is no data in the buffer of all bearers and/or logical channels currently corresponding to the transmission time interval, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer of the first data arrives and/or When the timer that is forbidden to be reported by the BSR is timed out, the normal buffer status is reported to the BSR. And/or the fifth triggering condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group expires, the periodic buffer status is reported to the BSR; And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR. The terminal according to claim 28 or 29, wherein the first reporting module comprises: The first reporting sub-module is configured to: when the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG, wherein the length of the first message is fixed length. The terminal according to claim 32, wherein the first reporting sub-module comprises: The first reporting unit is configured to report only the logical channel for reporting the BSR of the trigger buffer status when the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG The first message of the buffer status of the group LCG, or only the first message for characterizing the buffer status of the logical channel group LCG with the highest priority. The terminal according to claim 28 or 29, wherein the first reporting module comprises: a second reporting sub-module, configured to report a first message for characterizing the buffer status to the network side device based on the at least two logical channel groups LCG, where a length of the first message is Long or long. The terminal according to claim 34, wherein the second reporting sub-module comprises: a second reporting unit, configured to report, to the network side device, a buffer for characterizing M logical channel groups LCG in the at least two logical channel groups LCG when the length of the first message is a fixed length The first message of the status; The M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset maximum logical channel that the network side device can configure for the terminal. The number of groups of LCGs. The terminal according to claim 34, wherein the second reporting sub-module comprises: a third reporting unit, configured to report, to the network side device, a buffer for characterizing M logical channel groups LCG in the at least two logical channel groups LCG when the length of the first message is longer The first message of the state, where the maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited. A terminal according to claim 34 or 36, wherein: The first message is divided into a media access layer MAC subheader and a media access layer control unit MAC CE. When the length of the first message is longer, the first message includes a feature for characterization. The buffer information corresponding to the first message reports the second information of the length of the BSR MAC CE. The terminal of claim 29, wherein: Each of the secondary groups corresponds to a unique identifier. The terminal of claim 38, wherein: The unique identifier corresponding to each secondary group is numbered in an incremental manner; Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. A combination of secondary group IDs. A terminal according to claim 38 or 39, wherein: For the unique identifier corresponding to each of the secondary groups, the first message needs to carry a buffer status indication corresponding to the unique identifier of the secondary group. A network side device, comprising: a processor, a memory, and a transceiver; A processor that reads a program in memory and performs the following procedures: And grouping at least one bearer and/or logical channel corresponding to the terminal to obtain at least one primary group; grouping each primary group in the at least one primary group to obtain at least one secondary group; determining a first mapping relationship, that is, determining a first mapping relationship of each bearer and/or logical channel and the at least one secondary group in each of the at least one secondary group; sending the first Mapping the relationship to the terminal; receiving, by the terminal, the first message that is sent to the network side device to represent the buffer status of the terminal, and obtaining, according to the first message, the buffer of the terminal Zone status. The device according to claim 41, wherein the processor is specifically configured to: The bearer and/or logical channel in the at least one bearer and/or logical channel corresponding to the terminal that can use the same baseband parameter and/or transmission time interval is divided into the same level group to obtain at least one level group. The device according to claim 42, wherein the processor is specifically configured to: Obtaining a second mapping relationship, that is, obtaining a second mapping relationship between at least one bearer and/or logical channel corresponding to the terminal and a baseband parameter and/or a transmission time interval; and using the terminal according to the second mapping relationship The bearers and/or logical channels in the corresponding at least one bearer and/or logical channel that can use the same baseband parameters and/or transmission time intervals are assigned to the same primary group to obtain at least one primary group. The device according to claim 41, wherein the processor is specifically configured to: Each of the at least one primary group is grouped according to all and part of parameter requirements of the service quality of service QoS, and at least one secondary group is obtained, wherein each of the at least one secondary group The secondary group is the logical channel group LCG. The device of claim 41 wherein: Each of the secondary groups corresponds to a unique identifier. The device according to claim 45, wherein: The unique identity corresponding to each secondary group is numbered in an incremental manner; Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. The combination of the secondary group identifiers in the primary group. The device according to claim 41, wherein the processor is specifically configured to: The first mapping relationship is sent to the terminal by using a radio resource control RRC, a medium access layer MAC, or physical layer signaling. A terminal, comprising: a second receiving module, configured to receive, by the network side device, a first mapping relationship used to represent a correspondence between the at least one bearer and/or the logical channel and the at least one logical channel group LCG; a first determining module, configured to determine whether a buffer status meets a trigger condition for reporting a BSR in a buffer status; If yes, the first reporting module is configured to report, by using the first mapping relationship, the first message used to represent the buffer status to the network side device. The terminal according to claim 48, wherein the first mapping relationship is specifically: The network side device obtains at least one primary group by grouping at least one bearer and/or logical channel corresponding to the terminal, and each of the at least one primary group includes at least one secondary group. The first mapping relationship is used to represent a mapping relationship between each bearer and/or logical channel and at least one secondary group in the at least one secondary group, where one of the secondary groups is a The logical channel group LCG. The terminal according to claim 48, wherein the triggering condition comprises: a first triggering condition: when the terminal has a higher priority data than the data in the current buffer arrives or is in an empty buffer, or when the timer for prohibiting the BSR is timed out and there is data in the buffer, Triggering the normal buffer status to report the BSR; And/or the second triggering condition: when the timer reported by the periodic BSR corresponding to the terminal times out, the periodic buffer status is reported to the BSR; And/or a third triggering condition: when the terminal is in the organization media access layer MAC protocol data unit PDU, in addition to the data to be transmitted, resources are available, triggering the piggybacking BSR. The terminal according to claim 48, wherein the triggering condition comprises: a fourth triggering condition: when any one of the bearers and/or the logical channel corresponding to the terminal has the first data arrives, the priority of the bearer and/or the logical channel that the first data arrives is higher than the first data arrives. The baseband parameters corresponding to the bearer and/or logical channel and/or the priority of all bearers and/or logical channels currently serving the transmission, or the baseband parameters corresponding to the bearer and/or logical channel of the first data arrival And when there is no data in the buffer of all bearers and/or logical channels currently corresponding to the transmission time interval, or the timer for prohibiting the BSR reporting is configured based on the baseband parameter/baseband parameter group, the bearer of the first data arrives and/or When the timer that is forbidden to be reported by the BSR is timed out, the normal buffer status is reported to the BSR. And/or the fifth triggering condition: when the timer reported by the periodic BSR corresponding to the baseband parameter/baseband parameter group expires, the periodic buffer status is reported to the BSR; And/or a sixth triggering condition: when the terminal organizes the medium access layer MAC protocol data unit PDU on each baseband parameter, in addition to the data to be transmitted, resources are available to trigger the piggybacking BSR. The terminal according to claim 48 or 49, wherein the first reporting module comprises: The first reporting sub-module is configured to: when the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG, wherein the length of the first message is fixed length. The terminal according to claim 52, wherein the first reporting sub-module comprises: The first reporting unit is configured to report only the logical channel for reporting the BSR of the trigger buffer status when the first message for characterizing the buffer status is reported to the network side device based on a logical channel group LCG The first message of the buffer status of the group LCG, or only the first message for characterizing the buffer status of the logical channel group LCG with the highest priority. The terminal according to claim 48 or 49, wherein the first reporting module comprises: a second reporting sub-module, configured to report a first message for characterizing the buffer status to the network side device based on the at least two logical channel groups LCG, where a length of the first message is Long or long. The terminal according to claim 54, wherein the second reporting submodule comprises: a second reporting unit, configured to report, to the network side device, a buffer for characterizing M logical channel groups LCG in the at least two logical channel groups LCG when the length of the first message is a fixed length The first message of the status; The M is less than or equal to a preset number of the most reported logical channel groups LCG, or the M is less than or equal to a preset maximum logical channel that the network side device can configure for the terminal. The number of groups of LCGs. The terminal according to claim 54, wherein the second reporting submodule comprises: a third reporting unit, configured to report, to the network side device, a buffer for characterizing M logical channel groups LCG in the at least two logical channel groups LCG when the length of the first message is longer The first message of the state, where the maximum number of logical channel groups LCG configured by the network side device for the terminal is limited or not limited. A terminal according to claim 54 or 56, wherein: The first message is divided into a media access layer MAC subheader and a media access layer control unit MAC CE. When the length of the first message is longer, the first message includes a feature for characterization. The buffer information corresponding to the first message reports the second information of the length of the BSR MAC CE. The terminal of claim 49, wherein: Each of the secondary groups corresponds to a unique identifier. The terminal of claim 58, wherein: The unique identifier corresponding to each secondary group is numbered in an incremental manner; Or, the unique identifier corresponding to each secondary group is numbered by a two-level identifier, where the two-level identifier is a first-level group identifier of the first-level group in which each secondary group is located, and the second-level group corresponds to the second-level group. A combination of secondary group IDs. A terminal according to claim 58 or 59, wherein: For the unique identifier corresponding to each of the secondary groups, the first message needs to carry a buffer status indication corresponding to the unique identifier of the secondary group. A cache synchronization exception device readable storage medium, comprising program code for causing the computing device to perform any of claims 1-7 when the program code is run on a computing device The steps of the method or the method of any of claims 15-27.

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