WO2016058363A1

WO2016058363A1 - Traffic control method and device, and base station

Info

Publication number: WO2016058363A1
Application number: PCT/CN2015/078300
Authority: WO
Inventors: 孙晋; 王宏志
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-10-17
Filing date: 2015-05-05
Publication date: 2016-04-21
Also published as: CN105578530A

Abstract

A traffic control method and device, and a base station. In a traffic control process, a signal quality fluctuation condition of a user terminal is acquired; and then a traffic control period is dynamically set according to the acquired signal quality fluctuation condition, wherein the traffic control period is a period within which a base station acquires data from a radio network controller. The traffic control period in the above-mentioned technical solution is dynamically set according to the signal quality fluctuation condition of the user terminal, rather than a fixed traffic control period used in the related art. Therefore, an adaptive traffic control period can be selected under different signal quality fluctuations to perform traffic control, which can better adapt to each signal quality fluctuation scenario, can better use limited network resources, and improves the service performance and the degree of satisfaction of user experience.

Description

Flow control method, device and base station

Technical field

This document relates to the field of communications, and in particular, to a flow control method, apparatus, and base station.

Background technique

In the field of WCDMA, CDMA, and TD-SCDMA subsequent high-speed packet data access (HSPA+), in the high-speed downlink packet access (HSDPA) service processing, the base station (Node B) Side-flow control is an important means to control the total bandwidth of the IUB port, reduce buffer overflow, reduce discard, reduce retransmission, increase the efficiency of RNC (Radio network controller) and Node B buffer utilization. . Flow control is a very critical part. Good flow control technology can not only reduce the load of RNC, but also effectively utilize limited network resources to provide users with good services. In the related art, the control period of the flow control of the base station is fixedly set, but in the mobile wireless environment, the signal quality of the user terminal changes rapidly, for example, the user terminal enters a region with strong coverage from a region with weak signal coverage. Or enter a weak area from a region with a strong signal coverage. From indoors to outdoors, from open tunnels to tunnels, on high-speed roads, on subways, and on trains, signal quality changes very quickly. In this case, the fixed flow control cycle adjustment cannot be timely response control. When the fluctuation of the CQI (Channel Quality Indicator) is relatively large in a period of time, the data accumulation buffer on the Node B side overflows and causes congestion. When the signal quality indicator (CQI) rises, it also results in no data to be scheduled for a period of time. Business performance changes a lot and the user experience gets worse. In order to better adapt to channel quality changes, traffic control on the network side requires faster response.

Summary of the invention

The main technical problem to be solved by the embodiments of the present invention is to provide a flow control method, a device, and a base station, which solves the application scenario that the flow control in the related art cannot adapt to the fluctuation of the signal quality when the fixed flow control period is large, resulting in poor service performance and The problem of poor user experience satisfaction.

To solve the above technical problem, an embodiment of the present invention provides a flow control method, including:

Obtaining signal quality fluctuations of the user terminal;

The flow control period is dynamically set according to the obtained signal quality fluctuation condition; the flow control period is a period in which the base station acquires data from the wireless network controller.

Optionally, obtaining signal quality fluctuations of the user terminal includes:

Receiving, by the user terminal, the signal quality indicator reported by the preset time interval;

Obtaining an absolute value of a difference between signal quality indications that are continuously reported by the user terminal twice;

Dynamically setting the flow control period based on the acquired signal quality fluctuations includes:

When the absolute value of the difference obtained continuously for N times is greater than the first preset threshold, the flow control period is set to the first period; the N is greater than or equal to 1.

Optionally, after the flow control period is set to the first period, the method further includes:

When the absolute value of the difference obtained in consecutive M times is less than the second preset threshold, the flow control period is set to a second period, and the M is greater than or equal to 1;

When the absolute value of the difference obtained in consecutive M times is less than or equal to the first preset threshold and greater than or equal to the second preset threshold, the set flow control period is maintained as the first period; In the second period, the first preset threshold is greater than the second preset threshold.

Optionally, the first preset threshold is greater than or equal to 4, and is less than or equal to any one of 30; the second preset threshold is greater than or equal to 1, and is less than or equal to any one of 3.

Optionally, setting the flow control period to the first period includes:

Determining whether the current flow control period is the first period, and if so, maintaining; if not, adjusting it to the first period;

In order to solve the above problem, the embodiment of the present invention further provides a flow control device, including an information acquisition module and a processing module;

The information acquiring module is configured to acquire a signal quality fluctuation of the user terminal;

The processing module is configured to dynamically set a flow control period according to the acquired signal quality fluctuation condition; the flow control period is a period in which the base station acquires data from the wireless network controller.

Optionally, the information acquiring module includes a signal quality acquiring submodule and a computing submodule; The processing module includes a first determining submodule and a first setting submodule;

The signal quality acquisition sub-module is configured to receive a signal quality indicator that is measured by the user terminal according to a preset time interval;

The calculating submodule is configured to obtain an absolute value of a difference between signal quality indications that are continuously reported by the user terminal twice;

The first determining sub-module is configured to set a first notification to the setting sub-module when determining that the absolute value of the difference obtained by the calculating sub-module is greater than the first preset threshold, the N Greater than or equal to 1;

The first setting submodule is configured to set the flow control period to a first period according to the first notification.

Optionally, the processing module further includes a second determining submodule and a second setting submodule;

The second determining sub-module is configured to: after the first setting sub-module sets the flow control period to the first period, when the calculating sub-module obtains the absolute value of the difference M times less than the first time Sending a second notification to the second setting sub-module, where the M is greater than or equal to 1; when the calculating sub-module obtains the absolute value of the difference M times less than or equal to the first When the preset threshold is greater than or equal to the second preset threshold, the third notification is sent to the second setting submodule; the first preset threshold is greater than the second preset threshold;

The second setting submodule is configured to set the flow control period to a second period according to the second notification; maintaining the flow control period as a first period according to the third notification; the first period Less than the second period.

In order to solve the above technical problem, an embodiment of the present invention further provides a base station, where the base station includes the flow control device as described above.

In order to solve the above technical problem, an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing method.

The beneficial effects of the embodiments of the present invention are:

The flow control method, device and base station provided by the embodiments of the present invention acquire the signal quality fluctuation of the user terminal in the flow control process; and dynamically set the flow control period according to the acquired signal quality fluctuation, the flow control period is the base station The period in which data is acquired to the radio network controller. That is, the flow control period in the embodiment of the present invention is dynamically set according to the signal quality fluctuation of the user terminal, and is not a fixed flow control period in the related art, so that adaptive flow control can be selected under different signal quality fluctuations. The flow control is performed periodically, which can better adapt to the fluctuation scenarios of each signal quality, and can better utilize limited network resources to improve service performance and user experience satisfaction.

BRIEF abstract

FIG. 1 is a schematic flowchart of a flow control method according to an embodiment of the present invention;

2 is a schematic flowchart of obtaining a signal quality fluctuation of a user terminal according to an embodiment of the present invention;

3 is a schematic flowchart of setting a flow control period according to an embodiment of the present invention;

4 is a schematic structural diagram of a flow control device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention.

Preferred embodiment of the invention

The present invention will be further described in detail below with reference to the accompanying drawings.

Embodiment 1:

Referring to FIG. 1 , the flow control method in this embodiment includes:

Step 101: Acquire a signal quality fluctuation of the user terminal.

Step 102: Dynamically set a flow control period according to the obtained signal quality fluctuation condition; the flow control period in this embodiment is a period in which the base station acquires data from the wireless network controller.

The foregoing steps in this embodiment may all be performed by a base station, where the user terminal refers to the base station cell. User terminal in . The signal quality fluctuation of the user terminal obtained in this embodiment can be obtained by using the signal quality indicator CQI reported by the user terminal, as shown in FIG. 2, including:

Step 201: The receiving user equipment measures the reported signal quality indicator (CQI) according to a preset time interval (for example, every interval of 10 ms, 15 ms, or 20 ms, etc.);

Step 202: Acquire an absolute value of a difference between signal quality indications that are continuously reported by the user terminal twice; the absolute value of the difference obtained here is the obtained signal quality fluctuation condition.

In this embodiment, dynamically setting the flow control period according to the obtained signal quality fluctuation condition, as shown in FIG. 3, includes:

Step 301: When the absolute value of the difference obtained continuously for N times is greater than the first preset threshold (that is, the upper threshold), set the flow control period to the first period; where N is greater than or equal to 1; The first preset threshold may be selected from any one of 0 to 30. In this embodiment, the first preset threshold may be greater than or equal to 4 and less than or equal to 30.

Step 302: After the flow control period is set to the first period, when the absolute value of the difference obtained continuously for M times is less than the second preset threshold (that is, the lower threshold), the flow control period is set to the second period, where M is greater than Or equal to 1. The second preset threshold herein may also be selected as any one of 0 to 30. In this embodiment, the second preset threshold may be greater than or equal to 1, and less than or equal to any one of 3.

In the above step 301, the process of setting the flow control period to the first period includes:

Determine whether the current flow control period is the first period, and if so, keep it; if not, adjust it to the first period.

It should be understood that the values of M and N in this embodiment may be selected according to a specific application scenario. For example, N and M may each have a value of 1 or 2; for example, N may have a value of 2. The value of M is 1.

In this embodiment, after the flow control period is set to the first period, when the absolute value of the subsequent obtained difference does not satisfy the above situation, the set flow control period is maintained as the first period; for example, when the difference is obtained for M consecutive times When the absolute value of the value is less than or equal to the first preset threshold, and is greater than or equal to the second preset threshold, the flow control period is maintained as the first period. The first period in this embodiment is smaller than the second period; for example, the first period may be set to 20 ms, and the second period is set to 60 ms; for example, One cycle can be set to 10ms and the second cycle is set to 40ms. The specific values of the first period and the second period may also be selected according to specific application scenarios.

Embodiment 2:

Referring to FIG. 4, the embodiment provides a flow control device, which can be run on a base station, and includes an information acquisition module and a processing module.

The information acquiring module is configured to acquire a signal quality fluctuation of the user terminal, where the user terminal refers to a user terminal in the base station cell;

The processing module is configured to dynamically set the flow control period according to the acquired signal quality fluctuation condition; the flow control period is a period in which the base station acquires data from the wireless network controller.

The signal quality fluctuation of the user terminal obtained in this embodiment can be obtained by using the signal quality indicator CQI reported by the user terminal. Optionally, the information acquiring module includes a signal quality acquiring submodule and a computing submodule;

The signal quality obtaining submodule is configured to receive the signal quality indicator that is measured by the user terminal according to the preset time interval;

The calculation sub-module is set to obtain the absolute value of the difference between the signal quality indications reported by the user terminal twice; the absolute value of the difference obtained here is the obtained signal quality fluctuation.

The processing module in this embodiment includes a first determining submodule and a first setting submodule;

The first determining sub-module is configured to set a first notification to the setting sub-module when determining that the absolute value of the difference obtained by the computing sub-module is greater than the first preset threshold, where N is greater than or equal to 1; The first preset threshold may be selected from any one of 0 to 30 in the embodiment. In this embodiment, the first preset threshold may be greater than or equal to 4 and less than or equal to 30.

The first setting submodule is configured to set the flow control period to the first period according to the received first notification; the process is: determining whether the current flow control period is the first period, and if yes, maintaining; if not, Adjust to the first cycle.

The processing module in this embodiment further includes a second determining submodule and a second setting submodule;

The second determining sub-module is set to set the flow control period to the first week in the first setting sub-module After the period, when the absolute value of the difference obtained by the calculation sub-module for the M times is less than the second preset threshold, the second notification is sent to the second setting sub-module; when the calculation sub-module obtains the difference M times consecutively When the absolute value of the value is less than or equal to the first preset threshold, and is greater than or equal to the second preset threshold, sending a third notification to the second setting submodule; the first preset threshold is greater than the second preset threshold; The second preset threshold may be selected as any one of 0 to 30. In this embodiment, the second preset threshold may be greater than or equal to 1, and less than or equal to any one of 3.

The second setting submodule is configured to set the flow control period to the second period according to the second notification, where M is greater than or equal to 1; and maintain the flow control period as the first period according to the third notification;

In this embodiment, after the processing module sets the flow control period to the first period, when the absolute value of the subsequent obtained difference does not satisfy the above situation, the set flow control period is maintained as the first period; for example, when the M times are obtained continuously When the absolute value of the difference is less than or equal to the first preset threshold and greater than or equal to the second preset threshold, the flow control period is maintained as the first period. The first period in this embodiment is smaller than the second period; for example, the first period may be set to 20 ms, and the second period is set to 60 ms; for example, the first period may be set to 10 ms, and the second period may be set to 40 ms. The specific values of the first period and the second period may also be selected according to specific application scenarios.

Embodiment 3:

The embodiment provides a base station, as shown in FIG. 5, the storage device and the processor; the memory is configured to store at least one program module, and the processor is configured to invoke the at least one program module to perform the following steps:

Obtaining signal quality fluctuations of the user terminal;

The flow control period is dynamically set according to the obtained signal quality fluctuation condition; the flow control period is a period during which the base station acquires data from the wireless network controller.

For a better understanding of the embodiments of the present invention, the following further exemplifies the embodiments of the present invention by taking two specific application scenarios as an example.

Scenario 1: The second period is a normal period, and the value is 60 ms; the first period is a fast period, and the value is 20 ms; the time interval for the user terminal to measure the CQI is 10 ms, and the values of the above M and N are both The first preset threshold is 6 and the second preset threshold is 3. The flow control process in the application scenario is as follows:

Initially, the base station sets its flow control period to a normal period, that is, 60 ms;

Initially, the base station receives the CQI reported by the user terminal as 30; the CQI reported by the user terminal received after 10 ms is 23;

The base station determines that the CQI difference value reported by the user terminal twice is absolute, and the absolute value difference value 7 is greater than the first preset threshold value 6, and the flow control period is set to a fast period, that is, set to 20 ms;

After the setting, the flow control period of the base station is 20 ms. It is assumed that the CQI currently reported by the user terminal is 27 after a period of time, and the absolute value of the difference between the CQI and the last reported CQI is 5, which is smaller than the first preset threshold 6. The value is greater than the second preset threshold 3, and the flow control period of the base station is kept as the fast period of 20 ms. It is assumed that the CQI reported by the user terminal is 26, and the absolute value of the difference between the CQI and the currently reported CQI is 1, which is smaller than the second preset threshold. The base station adjusts its flow control to a normal period of 60 ms.

Scenario 2: The second period is a normal period, and the value is 40 ms; the first period is a fast period, and the value is 10 ms; the time interval for the user terminal to measure the CQI is 15 ms, and the values of the above M and N are both The first preset threshold is 5, and the second preset threshold is 2. The flow control process in the application scenario is as follows:

Initially, the base station sets its flow control period to a normal period, that is, 40 ms;

Initially, the base station receives the CQI reported by the user terminal as 21; the CQI reported by the user terminal received after 15 ms is 25;

The base station determines that the absolute value of the difference between the CQIs reported by the user terminal is 4, and the absolute value difference 4 is less than the first preset threshold 5, and the flow control period is maintained as a normal period, that is, set to 40 ms;

After the setting, the flow control period of the base station is 40 ms. It is assumed that the CQI currently reported by the user terminal is 27 after a period of time, and the absolute value of the difference between the CQI and the last reported CQI is 6, which is greater than the first preset threshold value of 5. The flow control period is set to a fast period of 10 ms. It is assumed that the CQI reported by the user terminal is 30, and the absolute difference between the CQI and the currently reported CQI is 3, which is greater than the second preset threshold 2. The base station maintains its flow control period as The fast cycle is 10ms.

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.

One of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described embodiments can be implemented using a computer program flow, which can be stored in a computer readable storage medium, such as on a corresponding hardware platform (eg, The system, device, device, device, etc. are executed, and when executed, include one or a combination of the steps of the method embodiments.

Alternatively, all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.

The devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.

When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

Industrial applicability

The above technical solution realizes that the flow control period is adapted to the flow control cycle under different signal quality fluctuations, can better adapt to the fluctuation scenario of each signal quality, can better utilize limited network resources, improve service performance and users. Satisfaction of experience.

Claims

A flow control method comprising:

Obtaining signal quality fluctuations of the user terminal;

The flow control period is dynamically set according to the obtained signal quality fluctuation condition; the flow control period is a period in which the base station acquires data from the wireless network controller.
The flow control method according to claim 1, wherein

The obtaining signal quality fluctuations of the user terminal includes:

Receiving, by the user terminal, the signal quality indicator reported by the preset time interval;

Obtaining an absolute value of a difference between signal quality indications that are continuously reported by the user terminal twice;

The dynamically setting the flow control period according to the acquired signal quality fluctuation condition includes:

When the absolute value of the difference obtained continuously for N times is greater than the first preset threshold, the flow control period is set to the first period; the N is greater than or equal to 1.
The flow control method according to claim 2, further comprising:

After the flow control period is set to the first period,

When the absolute value of the difference obtained in consecutive M times is less than the second preset threshold, the flow control period is set to a second period, and the M is greater than or equal to 1;

When the absolute value of the difference obtained in consecutive M times is less than or equal to the first preset threshold and greater than or equal to the second preset threshold, the set flow control period is maintained as the first period; In the second period, the first preset threshold is greater than the second preset threshold.
The flow control method according to claim 3, wherein the first preset threshold is greater than or equal to 4 and less than or equal to any one of 30; the second preset threshold is greater than or equal to 1, and less than Or equal to any of the three values.
The flow control method according to any one of claims 2 to 4, wherein setting the flow control period to the first period comprises:

Determine whether the current flow control period is the first period, and if so, keep it; if not, adjust it to the first period.
A flow control device includes an information acquisition module and a processing module;

The information acquiring module is configured to acquire a signal quality fluctuation of the user terminal;

The processing module is configured to dynamically set a flow control period according to the acquired signal quality fluctuation condition; the flow control period is a period in which the base station acquires data from the wireless network controller.
The flow control device according to claim 6, wherein the information acquisition module comprises a signal quality acquisition sub-module and a calculation sub-module; the processing module comprises a first determination sub-module and a first setting sub-module;

The signal quality acquisition submodule is configured to receive, by the user terminal, a signal quality indicator that is reported and reported according to a preset time interval;

The calculating submodule is configured to obtain an absolute value of a difference between signal quality indications that are continuously reported by the user terminal twice;

The first determining sub-module is configured to: when determining that the absolute value of the difference obtained by the calculating sub-module is greater than the first preset threshold, the first notification is set to the setting sub-module, N is greater than or equal to 1;

The first setting submodule is configured to set the flow control period to a first period according to the first notification.
The flow control device according to claim 7, wherein the processing module further comprises a second determining submodule and a second setting submodule;

The second determining sub-module is configured to: after the first setting sub-module sets the flow control period to the first period, when the calculating sub-module obtains the absolute value of the difference value that is obtained M times consecutively is less than And sending, by the second setting sub-module, a second notification, where the M is greater than or equal to 1; when the calculating sub-module obtains the absolute value of the difference M times less than or equal to the first a third threshold is sent to the second setting sub-module when the preset threshold is greater than or equal to the second preset threshold; the first preset threshold is greater than the second preset threshold;

The second setting submodule is configured to set the flow control period to a second period according to the second notification, and maintain the flow control period as a first period according to the third notification; The period is less than the second period.
The flow control device according to claim 8, wherein said first predetermined threshold is greater than or Equal to 4, and less than or equal to any one of 30; the second predetermined threshold is greater than or equal to 1, and less than or equal to any one of 3.
A base station comprising the flow control device according to any one of claims 6 to 8.
A computer storage medium having stored therein computer executable instructions for performing the method of any one of claims 1 to 5.