WO2012159396A1

WO2012159396A1 - Multi-carrier forward data distributing method, device and system

Info

Publication number: WO2012159396A1
Application number: PCT/CN2011/079836
Authority: WO
Inventors: 夏柱昌; 刘文超
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-05-20
Filing date: 2011-09-19
Publication date: 2012-11-29
Also published as: CN102209351B; CN102209351A

Abstract

Disclosed are a multi-carrier forward data distributing method, device and system for solving the technical problem in the prior art that the loads of the carriers are unbalanced and the load of the base station transceiver is heavy. The technical solution of the present invention is: a BTS acquiring information about stream throughput, DRC value and carrier sector load, and a BSC calculating the metric value logic ratio of each carrier of a logic stream according to the information above and distributing the logic stream to each carrier according to the metric value logic ratio. The present invention can equalize the load of each carrier by logically distributing the data to a plurality of carriers, lowering the load of the BTS and improving the throughput of the BTS.

Description

Multi-carrier forward data distribution method, device and system

The present invention relates to the field of communications, and in particular, to a multi-carrier forward data distribution method, apparatus and system. Background technique

The CDMA (Code Division Multiple Access) system is mainly composed of a BSC (Base Station Controller) and a BTS (Base Transceiver Station). The BTS is responsible for receiving and transmitting mobile signals. A complete BTS includes wireless transmit/receive equipment, antennas and signal processing sections specific to all wireless interfaces. In general, multiple BSCs and BTSs form a cellular base station subsystem in a certain area, and the signals transmitted and received between the BTSs are controlled by the BSC to achieve the transmission of mobile communication signals.

Currently, in a CDMA system, data corresponding to a certain service of a user is transmitted through a logical flow, and one logical flow includes multiple carriers, and each carrier has its own flow throughput.

As the number of carriers in a logic stream increases, the forward data rate is greatly improved. However, people face the problem of how to control the distribution of a large amount of forward traffic data on multiple carriers.

The existing multi-carrier forward data distribution method mainly includes data distribution method according to the size of the flow control window and information according to DRC (Data Rate Control) and a carrier fan (the carrier fan refers to a BTS support). A method of distributing data in the case of a load. The flow control window refers to the amount of data that the carrier can carry. When the flow control window is large, the carrier can carry more data. When the flow control window is small, the carrier can carry less data.

The method of data distribution according to the size of the flow control window is based on the flow control window of each carrier. The size of the port distributes the data of the logical stream on each carrier for transmission according to a certain ratio. However, this method only considers the flow control window, and does not consider the DRC value and the load of the fan. It may cause the data distribution of the logic flow to be unreasonable, increase the load of the BTS, and thus reduce the throughput of the BTS.

The DRC value and the load fan load ratio allocation method consider the DRC and the load fan load, but do not take into account the flow throughput of the carrier, so that in some cases, the data of multiple logic streams is simultaneously distributed to one. On the carrier fan, after being dispatched, it is simultaneously distributed to another carrier fan, causing a large amount of data to move between different carriers, increasing the load of the BTS, thereby reducing the throughput of the BTS. Summary of the invention

The present invention provides a multi-carrier forward data distribution method, device and system. The method provided by the present invention can distribute data to multiple carriers to balance the load of each carrier, reduce the load of the BTS, and improve the throughput of the BTS. .

The present invention provides a multi-carrier forward data distribution method, including:

The base transceiver station acquires a stream throughput of each carrier of a logic flow, a carrier fan load corresponding to each carrier, and a data rate control value corresponding to each carrier, and sends the data rate control value to the base station controller;

The base station controller obtains a metric value of each carrier and a metric value logical ratio of each carrier used to distribute data according to the received stream throughput of each carrier, the load of the carrier fan corresponding to each carrier, and the data rate control value corresponding to each carrier;

When the base station controller determines that the data flow of the logical flow is smaller than the data traffic that can be carried by all the carriers, the base station performs forward data distribution according to the logical ratio of the metric values of the carriers.

The invention also provides a base station controller, comprising:

a metric logic ratio calculating unit, configured to obtain a metric value of each carrier and each carrier used to distribute data according to the stream throughput of each carrier, the load of the carrier corresponding to each carrier, and the data rate control value corresponding to each carrier. Measured logic ratio; a determining unit, configured to determine whether data traffic of the logic flow is smaller than data traffic that can be carried by all carriers;

And a data distribution unit, configured to perform forward data distribution on the logic flow according to a metric value logical ratio of each carrier.

The invention also provides a base transceiver station, comprising:

a stream throughput obtaining unit, configured to acquire a stream throughput of each carrier of a logic stream and send the stream throughput to the base station controller;

The fan load and data rate control value obtaining unit is configured to acquire a load fan load corresponding to each carrier of the logic flow and a data rate control value corresponding to each carrier, and send the data rate control value to the base station controller.

The present invention also provides a multi-carrier forward data distribution system, comprising: the foregoing base station controller and the above-mentioned base transceiver station,

It can be seen from the above that the method provided by the present invention can distribute data to multiple carriers to balance the load of each carrier, reduce the load of the BTS, and improve the throughput of the BTS. DRAWINGS

1 is a schematic structural diagram of an embodiment of a multi-carrier forward data distribution system according to the present invention; and FIG. 2 is a flowchart of an embodiment of a multi-carrier forward data distribution method according to the present invention. detailed description

The present invention provides a multi-carrier forward data distribution method. The method provided by the present invention can distribute data to multiple carriers reasonably, balance the load of each carrier, reduce the load of the BTS, and improve the throughput of the BTS.

A multi-carrier forward data distribution method provided by the present invention includes:

The base station controller receives the traffic throughput of each carrier, the load of the carrier fan corresponding to each carrier, and a data rate control value corresponding to each carrier, obtaining a metric value of each carrier, and further obtaining a logical ratio of the metric values of each carrier;

Preferably, after the obtaining the metric value of each carrier, the method further includes:

Arranging each carrier according to the size of the metric value of each carrier;

After performing the forward data distribution according to the logic ratio of the metric values of each carrier, the logic flow further includes:

The data of the logical stream buffered in the distribution process is sequentially distributed to each carrier in the order of the carriers.

Preferably, each of the carriers is arranged, and specifically, each carrier is arranged in descending order according to the magnitude of the corresponding metric value.

A base station controller provided by the present invention includes:

a metric logic ratio calculating unit, configured to obtain a metric value of each carrier and each carrier used to distribute data according to the stream throughput of each carrier, the load of the carrier corresponding to each carrier, and the data rate control value corresponding to each carrier. Measured logic ratio;

a determining unit, configured to determine whether data traffic of the logic flow is smaller than data traffic that can be carried by all carriers;

Preferably, the method further includes:

The arranging unit is configured to arrange each carrier according to the size of the metric value of each carrier. The data distribution unit is further configured to distribute the data of the logic stream buffered in the distribution process to each carrier in the order of the carriers.

Preferably, the arranging unit is specifically configured to use each carrier according to a corresponding metric value. Small is arranged in order from large to small.

A base transceiver station provided by the present invention includes:

A multi-carrier forward data distribution system provided by the present invention includes: the base station controller and the base transceiver station.

It can be seen from the above that the method provided by the present invention can distribute data to multiple carriers to balance the load of each carrier, reduce the load of the BTS, and improve the throughput of the BTS.

1 is a schematic structural diagram of an embodiment of a multi-carrier forward data distribution system according to the present invention. As shown in FIG. 1, the multi-carrier forward data distribution system includes: a base station controller and a base station for transmitting and receiving, and the base station controller Includes:

a flow ratio logic ratio calculating unit, configured to calculate a ratio of a stream throughput of each carrier of the logic stream to a sum of stream throughputs of all carriers according to a stream throughput of each carrier of the logic stream sent by the base station, to obtain a ratio of each carrier Flow throughput logic ratio;

a metric calculation unit, configured to control a DRC value according to a load fan load corresponding to each carrier of the logical flow sent by the base station and a data rate corresponding to each carrier, and control a DRC by multiplying a data throughput logical ratio of each carrier by a data rate corresponding to each carrier The value is obtained by dividing the obtained product by the load of the carrier fan corresponding to each carrier to obtain a metric corresponding to each carrier;

The metric logic ratio calculating unit calculates a ratio of the metric value of each carrier to the sum of the metric values of all carriers, and obtains a logical ratio of the metric values of each carrier;

a determining unit, configured to determine whether data traffic of the logic flow is smaller than data traffic that can be carried by all carriers; a data distribution unit, configured to perform forward data distribution on the logical flow according to a metric value of each carrier;

The base transceiver station includes:

2 is a flow chart of an embodiment of a multi-carrier forward data distribution method according to the present invention. A specific embodiment of the multi-carrier data distribution method of the present invention will be described in detail below with reference to the accompanying drawings.

Step 201: The base transceiver station acquires a stream throughput of each carrier of a logic flow and sends the stream throughput to the base station controller.

Step 202: The base station controller calculates a sum of stream throughputs of all carriers according to the stream throughput of each carrier of the received logic stream.

Step 203: The base station controller calculates a ratio of a stream throughput of each carrier to a sum of stream throughputs of all carriers, and obtains a logical ratio of stream throughput of each carrier.

Step 204: The base transceiver station acquires a load fan load corresponding to each carrier of the logic flow and a data rate control value corresponding to each carrier, and sends the data rate control value to the base station controller.

Step 205: The base station controller, according to the load fan load corresponding to each carrier of the received logic flow and the data rate control value corresponding to each carrier, multiply the data rate corresponding to each carrier by the logical ratio of the flow ratio of each carrier The value is divided by the product and the load of the carrier fan corresponding to each carrier, and the metric value corresponding to each carrier is obtained.

Step 206: The base station controller arranges the carriers according to the size of the corresponding metric value in descending order.

Step 207: The base station controller calculates a sum of metric values of all carriers. Step 208: The base station controller calculates a ratio of a metric value of each carrier to a sum of metric values of all carriers, to obtain a metric logical ratio of each carrier.

Step 209: The base station controller determines whether the data traffic of the logical flow is smaller than the data traffic that can be carried by all the carriers. If the data traffic of the logical flow is smaller than the data traffic that can be carried by all the carriers, step 210 is performed; otherwise, the process proceeds to step 212.

Step 210: Perform forward data distribution on the logical flow according to a metric logical ratio of each carrier.

Step 211: The data of the logical stream buffered in the distribution process is sequentially distributed to each carrier in the order of the carriers, and the process returns to step 201.

Step 212: Distribute data of the logic flow to each carrier and fill each carrier.

The technical solution of the present invention is: the BTS obtains information about the flow throughput, the DRC value, and the load of the fan. The BSC calculates the logical ratio of the metric value of each carrier of the logical flow according to the above information, and distributes the logic according to the metric. Flow to each carrier.

The significance of this metric is: If the carrier fan load of the carrier is larger, the smaller the metric value corresponding to the carrier, the less the data of the logical stream distributed to the carrier, so as to reduce the carrier fan load of the carrier.

If the value of the DRC value of the carrier is larger, the metric corresponding to the carrier is larger, and the more data of the logical flow allocated to the carrier is increased to improve the throughput of the BTS.

Data distribution without reference to the flow-throughput logic ratio may occur as follows: When the DRC value/carrier fan load value of multiple logic flows is mapped to the same carrier fan, multiple logical flows The data will be distributed to the fan, causing the fan to be overloaded. After the fan is overloaded, the data of multiple logic streams may be distributed to another carrier fan, causing another carrier fan to be overloaded, resulting in no load on the BTS. Balanced, affecting the throughput of the BTS. The data distribution is performed by referring to the factor of the logical ratio of the flow throughput, so that data of a certain amount of logical flow is distributed on each carrier, and the data of the distributed logical stream is obtained according to the throughput of each carrier, so Each load The problem of unbalanced wave load increases the throughput of the BTS.

Since the technical solution of the present invention comprehensively considers various factors of the flow throughput, the DRC value, the load of the fan, and the amount of data that the carrier can carry, the data can be distributed to multiple carriers reasonably, the load of each carrier is balanced, and the BTS is mitigated. Load, improve the throughput of BTS.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Thus, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart and/or block diagrams, and combinations of flows and/or blocks in the flowcharts and/or block diagrams can be implemented by computer program instructions. 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 are provided for implementation in a block or blocks of a flow or a flow and/or a block diagram of the flowchart Functional steps.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention Industrial applicability

The technical solution of the present invention comprehensively considers various factors of the flow throughput, the data rate control value, the load fan load, and the amount of data that the carrier can carry, and distributes the data to multiple carriers reasonably, equalizes the load of each carrier, and reduces the base station. The load of the transceiver BTS increases the throughput of the BTS.

Claims

Claim

A multi-carrier forward data distribution method, the method comprising:

The base station controller obtains a metric value of each carrier and a metric logic ratio of each carrier according to the received stream throughput of each carrier, the load of the carrier corresponding to each carrier, and the data rate control value corresponding to each carrier;

The method according to claim 1, wherein, after obtaining the metric value of each carrier, the method further includes:

Arranging the carriers according to the size of the metric corresponding to each carrier;

3. The method according to claim 2, wherein the carriers are arranged, in particular, each carrier is arranged in descending order according to the size of the corresponding metric value.

4. A base station controller, the base station controller comprising:

a metric logic ratio calculating unit, configured to obtain a metric value of each carrier and a logical ratio of the metric value of each carrier according to the stream throughput of each carrier, the load of the carrier fan corresponding to each carrier, and the data rate control value corresponding to each carrier. ;

a data distribution unit, configured to perform, before the logic flow according to the metric value of each carrier Distribute to data.

The base station controller according to claim 4, wherein the base station controller further comprises: an arranging unit, configured to arrange each carrier according to a size of a metric value corresponding to each carrier; and a data distribution unit, further used for The data of the logical stream buffered in the distribution process is sequentially distributed to each carrier in the order of the respective carriers.

The base station controller according to claim 5, wherein the arranging unit is configured to arrange each carrier according to a size of the corresponding metric value in descending order.

7. A base transceiver station, the base transceiver station comprising:

A multi-carrier forward data distribution system, comprising: the base station controller according to any one of claims 4 to 6 and the base transceiver station according to claim 7.