WO2016177092A1

WO2016177092A1 - Scheduling method and scheduling device for uplink voice service, and base station

Info

Publication number: WO2016177092A1
Application number: PCT/CN2016/076013
Authority: WO
Inventors: 王蕾
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-08-19
Filing date: 2016-03-09
Publication date: 2016-11-10
Also published as: CN106470501A

Abstract

A scheduling method and scheduling device for an uplink voice service, and a base station. The scheduling method comprises: in an uplink voice call period, judging whether a preset event which will cause a base station to stop scheduling a user equipment subsequently exists, or judging whether a preset time which already causes the base station to stop scheduling the user equipment exists, and if so, actively scheduling the user equipment.

Description

Scheduling method, scheduling device and base station for uplink voice service

Technical field

The present application relates to the field of communications, for example, to a scheduling method, a scheduling device, and a base station for uplink voice services.

Background technique

In a Long Term Evolution (LTE) network that provides a voice service, when a user equipment (User Equipment, hereinafter referred to as UE) has no valid resources to transmit data, and the UE has a service to be transmitted at the same time, An active scheduling request (Scheduling Request, SR) is used to apply for valid and valid uplink transmission resources. Generally, after the UE initiates the SR, the base station responds to the SR initiated by the UE, and grants the UE a certain size of resources, so that the UE reports the amount of the data to be transmitted in the cache to the base station, that is, reports the buffer status. Buffer Status reporting (hereinafter referred to as BSR) is reported to the base station. After the base station acquires the BSR of the UE, it will schedule the UE.

During the uplink voice service, there are some abnormal conditions that may cause the base station to stop scheduling the UE. For example, when the base station sends a BSR periodically transmitted by the UE, and the amount of data to be transmitted of the UE's voice service is 0, the base station stops the UE. Dispatch. At this time, the uplink voice service of the UE will delay the response, and even if the delay is too large, the UE actively discards the packet, causing the call to be silent, which is a very bad experience for the user.

Summary of the invention

The scheduling method, the scheduling device, and the base station of the uplink voice service provided by the embodiment of the present invention can solve the problem that the base station stops scheduling the UE during the uplink voice service session in the related art, and the uplink voice service of the UE is delayed. Time response, and even because the delay is too large, the UE actively discards the package.

To solve the above technical problem, an embodiment of the present invention provides an active scheduling scheme for an uplink voice service, including:

During the uplink voice call period, it is determined whether there is a preset time that may cause the scheduling of the UE to be stopped. Inter-, or determine whether there is a preset event that has caused the scheduling of the UE to be stopped; if there is, the UE is actively scheduled.

Optionally, the preset event includes: the amount of data to be transmitted of the voice service of the UE that is locally maintained is 0, and the preset duration or N scheduling request sending periods are maintained, where the preset duration is greater than or equal to 0, N. Greater than or equal to 1.

Optionally, the amount of data to be transmitted of the locally maintained voice service of the UE is: the amount of data to be transmitted of the voice service of the UE that is maintained according to the BSR sent by the user.

Optionally, after performing the active scheduling on the UE, the method further includes: receiving a new BSR sent by the UE, and maintaining, according to the received new BSR, the amount of data to be transmitted of the voice service of the UE.

Optionally, performing active scheduling on the UE includes: allocating resources to the UE, where the size of the resource is greater than or equal to a size of a data packet that can be carried in an interval of a previous scheduling distance from the current time.

Optionally, the method for scheduling the uplink voice service further includes: determining, during an uplink voice call period, whether the amount of data to be transmitted of the locally maintained voice service of the UE is greater than 0; if yes, according to the locally maintained UE The amount of data to be transmitted of the voice service is scheduled for the UE.

Optionally, in the uplink voice call period, before determining whether there is a preset event that may cause the scheduling of the UE to be stopped, or determining whether there is a preset event that has caused the scheduling of the UE to be stopped, the method may further include: receiving The data packet sent by the UE determines whether it belongs to an uplink voice conversation period.

An apparatus for scheduling an uplink voice service, comprising: a first determining module, configured to determine, in an uplink voice call period, whether there is a preset event that may cause scheduling to stop the UE, or determine whether the presence of the UE has been stopped Scheduled scheduled event;

The first scheduling module is configured to actively schedule the UE when there is a preset event that may cause the scheduling of the UE to be stopped, or a preset event that has caused the scheduling of the UE to be stopped.

Optionally, the preset event includes: the amount of data to be transmitted of the voice service of the UE that is locally maintained is 0, and the preset duration or N scheduling request sending periods are maintained, where the preset duration is greater than or equal to 0. , N is greater than or equal to 1.

Optionally, the method further includes: a receiving module, configured to receive a new BSR sent by the UE;

The maintenance module is configured to maintain the amount of data to be transmitted of the voice service of the UE according to the received new BSR.

Optionally, the first scheduling module is configured to allocate resources to the UE, where the size of the resource is greater than or equal to a size of a data packet that can be carried in an interval between the previous scheduling distance and the current time.

Optionally, the scheduling device of the uplink voice service further includes: a second determining module, configured to determine, during an uplink voice call period, whether the amount of data to be transmitted of the locally maintained voice service of the UE is greater than 0;

The second scheduling module is configured to determine that the data to be transmitted of the voice service of the UE is locally maintained when the value of the data to be transmitted in the BSR of the voice service of the UE that is locally maintained is greater than 0. The amount is scheduled for the UE.

Optionally, the scheduling device of the uplink voice service further includes a third determining module, configured to determine, according to the received data packet sent by the UE, whether it belongs to an uplink voice call period.

A base station comprising a scheduling device for uplink voice services as described above.

A computer readable storage medium storing computer executable instructions for performing the above method.

During the uplink voice service session, when some abnormalities that can be excluded cause the base station to stop or have stopped scheduling the UE, the embodiment of the present invention enables the base station to perform active scheduling on the UE, thereby realizing fast recovery of the base station to the UE. The function is to prevent the delay of the uplink voice service due to the stop scheduling of the base station, and even if the delay is too large, the UE actively discards the packet and improves the user experience.

BRIEF abstract

FIG. 1 is a flowchart of a method for scheduling an uplink voice service according to an embodiment of the present invention;

2 is a flowchart of a method for scheduling an uplink voice service according to another embodiment of the present invention;

FIG. 3 is a schematic diagram of a scheduling apparatus for an uplink voice service according to an embodiment of the present invention.

Embodiments of the invention

The following describes the implementation of the present invention by using the voice service of the LTE as an example. However, the scope of application of the embodiment of the present invention is not limited to the voice service of the LTE. The voice service of LTE generally includes the following three parts: a transient state (Transient State), a Talk spurt state, and a Silent Period state, where

In the Transient State, the time interval for sending a data packet is 20 ms, which means that the voice service is not stable at the initial stage of establishment of the voice service, and the data packet in this state is large;

In the Talk spurt state, the time interval for sending data packets is 20ms, which means that the corresponding user is in the state of talking. In the call state, the data packet is transmitted every 20ms, and the voice packet size of the call period state is taken. Depending on the coding rate currently used;

In the Silent Period state, it is the state in which the user's call is paused, and the SID (Silence Descriptor) packet is sent at intervals of 160 ms.

In the embodiment of the present invention, the uplink voice conversation period includes the foregoing Talk spurt state, or includes the foregoing Transient State and Talk spurt states. But it is not limited to this.

As shown in FIG. 1 , a method for scheduling an uplink voice service according to an embodiment of the present invention includes:

S101: Determine, according to the received data packet sent by the UE, whether it belongs to an uplink voice conversation period;

S102: If it belongs to an uplink voice call period, determine whether there is a preset event that may cause the scheduling of the UE to be stopped;

S103: If the result of the determination in step S102 is that there is a preset event that causes the scheduling of the UE to be stopped, the UE is actively scheduled; if the preset event does not exist, the scheduling of the UE is stopped, and the normal scheduling is started. The process (for example, if there is no abnormality, it is scheduled according to the BSR);

Optionally, step S101 includes: determining, according to the identifier in the received data packet of the UE, whether it belongs to an uplink voice conversation period. For example, each time the UE sends a packet with the identification information, the identifier information is the call period identifier when it is in the call period of the uplink voice service, and is the silent period identifier when it is in the silent period of the uplink voice service. The other end, such as the base station, can determine whether the current call period of the uplink voice service is a silent period according to the identification information in the data packet.

Of course, step S101 can be omitted when it is already known that the call period is currently in the uplink voice service.

The stop scheduling in step S102 generally refers to the abnormal stop scheduling, that is, determining whether there is a preset event subsequently causes the abnormal stop to schedule the UE. For the stop scheduling under normal conditions, it can be processed according to the normal scheduling process, and the base station is not particularly required to perform active scheduling.

Optionally, the preset event in this embodiment includes: the amount of data to be transmitted of the voice service of the locally maintained UE is 0, and the preset duration or N SR transmission periods are maintained, and the preset duration is greater than or equal to 0, N. Greater than or equal to 1. The local device can maintain the amount of data to be transmitted of the voice service of the UE in a plurality of manners, and an optional manner is to receive the BSR periodically or randomly sent by the UE, and maintain the local voice service of the UE according to the received BSR. The amount of data transferred.

The process of actively scheduling the UE in the step S103 may include: allocating resources to the UE, where the size of the resource is greater than or equal to the size of the data packet that can be carried in the interval between the previous time and the current time interval, and the active scheduling process may of course include other Delivery of information.

Optionally, after performing active scheduling on the UE in step S103, the method further includes: receiving a new BSR sent by the UE, and maintaining, according to the received new BSR, the amount of data to be transmitted of the voice service of the UE, so that the actual The synchronization of the amount of data to be transmitted, thereby restoring the normal scheduling process for the UE.

The foregoing embodiment may further include: determining, during an uplink voice call period, whether the amount of data to be transmitted of the voice service of the locally maintained UE is greater than 0; if greater than 0, the amount of data to be transmitted according to the voice service of the locally maintained UE The UE performs scheduling, that is, enters the normal scheduling process, and does not perform active scheduling. The local device can maintain the amount of the data to be transmitted of the voice service of the UE in a plurality of manners, and an optional manner is to receive the BSR periodically or randomly sent by the UE, and maintain the local voice service of the UE according to the received BSR. The amount of data to be transferred.

Optionally, in the silent period of the uplink voice, in order to save resources, even if the amount of data to be transmitted of the voice service of the locally maintained UE is 0, active scheduling is not performed.

The foregoing embodiment implements the scheduling function of the UE to be quickly resumed when the UE can perform the scheduling of the UE in the uplink voice service session. The scheduling of the UE causes the UE to delay the uplink voice service, and even if the delay is too large, the UE actively discards the packet and improves the user experience.

FIG. 2 is a schematic diagram of a method for scheduling an uplink voice service according to another embodiment of the present invention, including:

S201: Determine, according to the received data packet sent by the UE, whether it belongs to an uplink voice conversation period;

S202: If it belongs to an uplink voice call period, determine whether there is a preset event that has caused the scheduling of the UE to be stopped;

S203: If the result of the determination in step S202 is that there is a preset event that has caused the scheduling of the UE to be stopped, the UE is actively scheduled; if the preset event does not exist, the scheduling of the UE is stopped, according to the normal scheduling process. (For example, if there is no abnormality, it will be scheduled normally);

The difference between the embodiment and the embodiment shown in FIG. 1 is that the embodiment shown in FIG. 1 is that when a preset event is followed, the scheduling of the UE is stopped, that is, when the scheduling is not stopped yet, the UE is actively scheduled. In this embodiment, when there is a preset event, the scheduling of the UE is stopped, that is, the scheduling has been stopped, and the UE is actively scheduled. Of course, the stop scheduling in this embodiment generally refers to abnormal stopping scheduling. That is, determining whether there is a preset event has caused the scheduling of the UE to be stopped abnormally. For the stop scheduling under normal conditions, it can be processed according to the normal scheduling process, and the base station is not particularly required to perform active scheduling.

As shown in FIG. 3, an apparatus for scheduling an uplink voice service is provided. The scheduling apparatus 30 of the uplink voice service includes a first determining module 304, configured to determine whether a follow-up event exists during an uplink voice call period. a preset event that causes the scheduling of the UE to be stopped, or whether there is a preset event that has caused the scheduling of the UE to be stopped; the first scheduling module 305 is configured to set a preset event that may cause the scheduling of the UE to be stopped subsequently. Or, when there is a preset event that has caused the scheduling of the UE to be stopped, the UE is actively scheduled.

Optionally, the preset event includes: the amount of data to be transmitted of the voice service of the UE maintained by the maintenance module 302 is 0, and the preset duration or N SR transmission periods are maintained, where the preset duration is greater than or equal to 0, and N is greater than Or equal to 1.

Optionally, the scheduling device 30 of the uplink voice service may further include a receiving module 301 configured to receive a new BSR sent by the UE, and a maintenance module 302 configured to maintain data to be transmitted of the voice service of the UE according to the received new BSR. the amount.

Optionally, the first scheduling module 305 may be configured to allocate resources to the UE, where the size of the resource is greater than or equal to the size of the data packet that can be carried in the interval of the previous scheduling distance from the current time.

Optionally, the scheduling device 30 of the uplink voice service may further include a second determining module 306, configured to determine, during an uplink voice call period, whether the amount of data to be transmitted of the voice service of the locally maintained UE is greater than 0; and the second scheduling module 307. If the judgment result of the second judging module 306 is that the amount of data to be transmitted of the voice service of the locally maintained UE is greater than 0, scheduling the UE according to the amount of data to be transmitted of the voice service of the locally maintained UE is normal. Scheduling, no active scheduling.

Optionally, the scheduling device 30 of the uplink voice service further includes a third determining module 303, configured to determine, according to the received data packet sent by the UE, whether it belongs to an uplink voice conversation period.

The present embodiment provides a scheduling apparatus for an uplink voice service, where the scheduling apparatus may implement scheduling of the UE when a preset event is subsequently caused, or when the preset event has caused the scheduling of the UE to be stopped. Active scheduling.

The embodiment of the invention further provides a base station, which includes the scheduling device of the uplink voice service.

The following is an example of the active scheduling of the UE by the base station, which is explained in the embodiment of the present invention, and includes the following processes:

Preparation conditions: LTE system, base station radio resource control (Radio Resource Control, below The RRC layer is configured with the SR parameters of the voice service. The SR period is configured to be 20 ms and the offset is 6.

S401: The UE sends a data packet to the base station.

S402: The base station determines, according to the identifier information in the data packet, that it belongs to the uplink voice call period, and determines that the voice payload value corresponding to the Adaptive Multi-Rate Codec (AMR) technology rate is 61 Byte according to the data packet. The overhead size (IP+RTP+UDP) is 40 bytes, and the redundancy is 10B.

S403: The base station reads the amount of data to be transmitted of the locally maintained voice service of the UE, if it is 0 (before, the base station maintains the amount of data to be transmitted according to the BSR sent by the UE), then proceeds to step S404;

S404: The base station finds that the UE has missed the transmission opportunity of the SR three times, that is, the current time interval is 60 ms from the physical uplink shared channel (Physical Uplink Shared Channel, hereinafter referred to as PUSCH); the base station performs active scheduling on the UE, including active The UE allocates resources;

S405: The base station receives the new BSR sent by the UE, and maintains the data volume of the local UE's voice service according to the received new BSR, stops the active scheduling, and resumes the normal scheduling process.

Because it is in the uplink voice call period, the UE sends a data packet every 20 ms, and the UE needs to send the SR to the base station every 20 ms. The base station needs to transmit data according to the UE's voice service after each SR is received. The amount is allocated to the UE. If the amount of data to be transmitted of the voice service of the UE maintained by the base station is 0, the base station stops scheduling the UE. However, in this embodiment, when the amount of data to be transmitted of the voice service of the UE maintained by the base station is 0, and the base station does not receive the SR sent by the UE, and the base station finds that the UE has missed the transmission opportunity of the SR three times, that is, the UE maintained by the base station. The amount of data to be transmitted of the voice service is 0, and the preset duration is long (the preset period is 3 times of the SR transmission period in this embodiment), so that the base station actively schedules the UE and actively allocates resources to the UE because the current The time interval from the last scheduling time is 60 ms, so the size of the resources to be allocated is at least 3 packets, namely: (61 + 40) * 3 + 10 = 313B.

The following describes the embodiment of the present invention by taking the silent period of the uplink voice service as an example, including the following process:

The LTE system, the RRC layer of the base station is configured with the SR parameters of the voice service, and the SR period is configured to be 20 ms, and the offset is 6;

S501: The UE sends a data packet to the base station.

S502: The base station determines, according to the identifier information in the data packet, that the uplink voice is silent;

S503: The base station does not actively schedule the UE.

In this embodiment, once it is determined that it belongs to the uplink voice silent period, even if the data volume to be transmitted of the voice service of the UE maintained by the base station is 0, the base station does not actively schedule the UE, but enters the normal scheduling process, that is, Wait for the UE to send the SR and then perform an SR response.

The following is a description of the embodiments of the present invention, including the following process, in which the amount of data to be transmitted of the voice service of the UE is greater than 0.

S601: The UE sends a data packet to the base station.

S602: The base station determines that the voice call period belongs to the uplink voice call period according to the identifier information in the data packet, and determines that the voice payload value corresponding to the rate of the Adaptive Multi-Rate Codec (AMR) technology is 61 Byte according to the data packet. The overhead size (IP+RTP+UDP) is 40 bytes, and the redundancy is 10B.

S603: The base station reads the amount of data to be transmitted of the voice service of the locally maintained UE. If the amount of data to be transmitted of the voice service of the locally maintained UE is greater than 0, the base station maintains the amount of data to be transmitted according to the BSR sent by the UE. ), proceeds to step S604;

S604: The base station performs scheduling according to the amount of data to be transmitted of the voice service of the UE that is maintained by the base station, and does not require the base station to perform active scheduling. The base station does not stop scheduling the UE, as the base station does not stop scheduling the UE, and the BSR that is subsequently sent by the UE to the base station can also be maintained by the base station. The amount of data to be transmitted of the voice service of the UE is synchronized with the actual amount of data to be transmitted by the UE, so the base station is not required to be actively scheduled.

During the uplink voice service session, when some abnormalities that can be excluded cause the base station to stop or have stopped scheduling the UE, the embodiment of the present invention enables the base station to perform active scheduling on the UE, thereby realizing fast recovery of the base station to the UE. The function is to prevent the delay of the uplink voice service caused by the base station stopping the scheduling, and even if the delay is too large, the UE actively discards the packet and improves the user experience. In the silent period of the uplink voice service, the base station does not actively schedule the UE in order to avoid waste of resources. In the uplink voice service session, and the base station maintains the data volume of the UE's voice service to be transmitted greater than 0, in order to save resources, the base station does not perform active scheduling, and performs scheduling according to the BSR information maintained by the base station itself, that is, enters the normal scheduling process ( For example, if there is no abnormality, it is scheduled normally.

The embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions for executing the method described in the foregoing embodiments.

The embodiment of the present invention further provides a base station, including a memory and at least one processor, wherein the memory stores instructions executable by the processor, and the instructions are used to execute the method described in the foregoing embodiments.

This document is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above is a further detailed description of the present invention in connection with the specific embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Industrial applicability

In the embodiment of the present invention, the base station performs active scheduling on the UE, thereby realizing fast recovery of the base station. The UE schedules the function to avoid delays in the uplink voice service caused by the base station stopping the scheduling, and even because the delay is too large, the UE actively discards the packet and improves the user experience.

Claims

A scheduling method for an uplink voice service, comprising:

During the uplink voice call period, it is determined whether there is a preset event that may cause the scheduling of the user equipment to be stopped, or whether there is a preset event that has caused the scheduling of the user equipment to be stopped;

In the case where it exists, the user equipment is actively scheduled.
The method for scheduling an uplink voice service according to claim 1, wherein the preset event comprises: the amount of data to be transmitted of the voice service of the user equipment that is locally maintained is 0, and the preset duration or N scheduling is maintained. A request transmission period, the preset duration is greater than or equal to 0, and N is greater than or equal to 1.
The method for scheduling an uplink voice service according to claim 2, wherein the amount of data to be transmitted of the voice service of the user equipment that is locally maintained is: the user that is maintained according to a buffer status report sent by the user. The amount of data to be transmitted for the voice service of the device.
The method for scheduling an uplink voice service according to claim 2, wherein after the active scheduling of the user equipment, the method further comprises: receiving a new buffer status report sent by the user equipment, according to the received new buffer The status report maintains the amount of data to be transmitted of the voice service of the user equipment.
The method for scheduling an uplink voice service according to claim 1, wherein the actively scheduling the user equipment comprises: allocating resources to the user equipment, where the size of the resource is greater than or equal to an interval of a previous scheduling distance from a current time. The size of the data packet that can be carried.
The method for scheduling an uplink voice service according to claim 1, further comprising: determining, during an uplink voice call period, whether the amount of data to be transmitted of the voice service of the user equipment maintained locally is greater than 0;

In the case of YES, the user equipment is scheduled according to the amount of data to be transmitted of the voice service of the user equipment that is locally maintained.
The method for scheduling an uplink voice service according to any one of claims 1 to 6, wherein, in the uplink voice call period, determining whether there is a preset event that may cause the scheduling of the user equipment to be stopped, or determining whether the existence has occurred Before the preset event of the scheduling of the user equipment is stopped, the method further includes: determining, according to the received data packet sent by the user equipment, whether the current voice call period is currently.
A scheduling device for an uplink voice service, comprising:

The first judging module is configured to: determine, in the uplink voice call period, whether there is a preset event that may cause the scheduling of the user equipment to be stopped, or determine whether the presence of the user equipment has been stopped. Scheduled scheduled events;

The first scheduling module is configured to actively schedule the user equipment when there is a preset event that may cause the scheduling of the user equipment to be stopped, or a preset event that has caused the scheduling of the user equipment to be stopped.
The scheduling device of the uplink voice service according to claim 8, wherein the preset event comprises: the amount of data to be transmitted of the voice service of the user equipment that is locally maintained is 0, and the preset duration or N scheduling is maintained. A request transmission period, the preset duration is greater than or equal to 0, and N is greater than or equal to 1.
The apparatus for scheduling an uplink voice service according to claim 9, further comprising:

a receiving module, configured to: receive a new buffer status report sent by the user equipment;

The maintenance module is configured to: report, according to the received new buffer status, the amount of data to be transmitted for maintaining the voice service of the user equipment.
The scheduling apparatus of the uplink voice service according to claim 8, wherein the first scheduling module is configured to allocate resources to the user equipment, where the size of the resource is greater than or equal to the interval between the previous scheduling distance and the current time. The size of the packet being carried.
The apparatus for scheduling an uplink voice service according to claim 8, further comprising:

The second judging module is configured to: determine, during an uplink voice call period, whether the amount of data to be transmitted of the voice service of the user equipment that is locally maintained is greater than 0;

The second scheduling module is configured to: when the judgment result of the second judging module is that the data volume to be transmitted of the voice service of the user equipment that is locally maintained is greater than 0, the data to be transmitted according to the voice service of the user equipment that is locally maintained The amount is scheduled for the user equipment.
The apparatus for scheduling an uplink voice service according to any one of claims 8 to 12, further comprising a third determining module, configured to: determine, according to the received data packet sent by the user equipment, whether it belongs to an uplink voice conversation period.
A base station comprising the scheduling apparatus for uplink voice services according to any one of claims 8 to 13.
A computer readable storage medium storing computer executable instructions for performing the method of any of claims 1-7.