WO2016127670A1

WO2016127670A1 - Allocation method and apparatus for to-be-scheduled data

Info

Publication number: WO2016127670A1
Application number: PCT/CN2015/093342
Authority: WO
Inventors: 杨宇冰
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-02-13
Filing date: 2015-10-30
Publication date: 2016-08-18
Also published as: CN105991273B; CN105991273A

Abstract

Disclosed are an allocation method and apparatus for to-be-scheduled data. The allocation method comprises: when a current allocation period is reached, acquiring to-be-scheduled data of a terminal; acquiring bandwidth information and channel quality information of component carriers aggregated by the terminal, wherein the total number of the component carriers aggregated by the terminal is at least one; and allocating the to-be-scheduled data of a terminal to the component carriers aggregated by the terminal according to the bandwidth information and the channel quality information of the component carriers aggregated by the terminal as well as a preset allocation rule.

Description

Method and device for allocating data to be scheduled

Technical field

The present invention relates to wireless communication technologies, and in particular, to a method and an apparatus for allocating data to be scheduled.

Background technique

Carrier aggregation technology is a core technology in Long Term Evolution (LTE-A), which aggregates multiple carriers into one large transmission bandwidth, enabling terminals with carrier aggregation capability to have multiple component carriers. Resources are available. Thereby, transmission or reception of data can be simultaneously performed on one or more component carriers.

In the LTE system, after the scheduler acquires the size of the data to be scheduled in the buffer corresponding to the terminal, the scheduling of the data to be scheduled is performed on only one carrier. Currently, in the LTE-A system, there is no method for allocating data of a terminal to be scheduled among a plurality of component carriers in carrier aggregation.

Summary of the invention

In order to solve the above technical problem, the embodiment of the present invention is to provide a method and a device for allocating data to be scheduled, which can enable the data to be scheduled in the buffer of the terminal to be effectively allocated among the component carriers, and realize the terminal on each component carrier. The effect of simultaneous data reception and simultaneous transmission.

The technical solution of the present invention is implemented as follows:

In a first aspect, an embodiment of the present invention provides a method for allocating data to be scheduled, where the method includes:

Obtaining data to be scheduled of the terminal when the current allocation period arrives;

Obtaining bandwidth information and channel quality information of each component carrier aggregated by the terminal; The total number of component carriers aggregated by the terminal is at least one;

The to-be-scheduled data of the terminal is allocated to each component carrier aggregated by the terminal according to bandwidth information and channel quality information of the component carriers aggregated by the terminal and a preset allocation rule.

In the foregoing solution, the allocating the to-be-scheduled data of the terminal to the component carriers aggregated by the terminal according to the bandwidth information, the channel quality information, and the preset allocation rule of the component carriers that are aggregated by the terminal, including:

Obtaining, by the following formula, the to-be-scheduled data BSR_CC _i of the terminal to which the i-th component carrier aggregated by the terminal is allocated:

Wherein, ceil (·) indicates the smallest integer greater than or equal to ·; BSR_UE for the terminal to be scheduled data size; W_BW_CC _i is the bandwidth carriers aggregated by the i-th component; W_CQ_CC _i polymerized to the terminal The weight corresponding to the channel quality information of the i-th component carrier; W_BW_CC _a is the bandwidth of the a-th component carrier aggregated by the terminal; W_CQ_CC _a is the channel quality information of the a-th component carrier aggregated by the terminal Weight; N is the total number of component carriers aggregated by the terminal.

In the above solution, when any component carrier that is aggregated by the terminal is not scheduled, or the channel quality information of any component carrier aggregated by the terminal is determined to be invalid according to a preset failure determination policy, all components aggregated by the terminal The weights corresponding to the channel quality information of the carriers are equal.

In the above solution, the weight corresponding to the channel quality information of the i-th component carrier that is aggregated by the terminal includes: a channel quality indicator CQI or a modulation and coding strategy MCS or a spectrum efficiency SE of the i-th component carrier aggregated by the terminal. .

In the foregoing solution, the acquiring data to be scheduled by the terminal includes:

Receiving a buffer status report BSR sent by the terminal;

Parsing the data to be scheduled in the buffer area of the terminal.

In a second aspect, an embodiment of the present invention provides a device for allocating data to be scheduled, where the device includes: a first acquiring unit, a second acquiring unit, and an allocating unit, where

The first acquiring unit is configured to acquire data to be scheduled of the terminal when the current allocation period arrives;

The second acquiring unit is configured to acquire bandwidth information and channel quality information of each component carrier that is aggregated by the terminal, where the total number of component carriers aggregated by the terminal is at least one;

The allocating unit is configured to allocate the to-be-scheduled data of the terminal to each component carrier aggregated by the terminal according to the bandwidth information and the channel quality information of the component carriers and the preset allocation rule that are aggregated by the terminal.

In the foregoing solution, the allocating unit is configured to obtain, by using the following formula, the to-be-scheduled data BSR_CC _i of the terminal to which the i th component carrier aggregated by the terminal is allocated:

In the above solution, the channel quality information of the i-th component carrier aggregated by the terminal corresponds to The weight includes: a channel quality indication CQI or a modulation and coding strategy MCS or a spectrum efficiency SE of the i-th component carrier aggregated by the terminal.

In the foregoing solution, the first acquiring unit includes a receiving module and a parsing module, where

The receiving module is configured to receive a buffer status report BSR sent by the terminal;

The parsing module is configured to parse data to be scheduled in the buffer area of the terminal.

The first obtaining unit, the second obtaining unit, the allocating unit, the receiving module, and the parsing module may use a central processing unit (CPU) and a digital signal processor (DSP, Digital) when performing processing. Singnal Processor) or Field-Programmable Gate Array (FPGA) implementation.

The embodiment of the invention provides a method and a device for allocating data to be scheduled, and according to the bandwidth information and the channel quality information of each component carrier aggregated by the terminal, the data to be scheduled is allocated, and the data to be scheduled in the buffer of the terminal buffer can be made in each component. The effective allocation between carriers enables the simultaneous reception and simultaneous transmission of data by the terminal on each component carrier.

DRAWINGS

FIG. 1 is a schematic flowchart of a method for allocating data to be scheduled according to an embodiment of the present disclosure;

2 is a schematic structural diagram of a device for allocating data to be scheduled according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another apparatus for allocating data to be scheduled according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

FIG. 1 is a flowchart of a method for allocating data to be scheduled according to an embodiment of the present invention. The method may be applied to a device for allocating data to be scheduled by a terminal to a component carrier aggregated by the terminal. Can include:

S101: Acquire data to be scheduled of the terminal when the current allocation period arrives;

It should be noted that the allocation period can be manually set, and the specific implementation can be managed by a timer. If the period of setting the BSR allocation is 1 s, that is, 1 s, the allocation process of the data to be scheduled described in this embodiment is performed once. When the current time reaches the allocation period of the BSR, the allocation of the data to be scheduled is started.

Exemplarily, the acquiring the data to be scheduled of the terminal may specifically include:

Receiving a buffer status report (BSR, Buffer State Report) sent by the terminal;

The BSR is parsed to obtain data to be scheduled in the buffer area of the terminal.

It should be noted that the BSR can be either a downlink BSR or an uplink BSR. Therefore, the data to be scheduled by the terminal may be the data that the terminal needs to send in the uplink buffer, or the terminal is in the downlink buffer. The data that needs to be received. Therefore, in this embodiment, uplink and downlink data of the terminal are allocated on each component carrier, so that the effect of simultaneous data reception and simultaneous transmission of the terminal on each component carrier can be realized.

S102: Obtain bandwidth information and channel quality information of each component carrier that is aggregated by the terminal, where the total number of component carriers aggregated by the terminal is at least one;

S103: Allocating data to be scheduled of the terminal to each component carrier aggregated by the terminal according to bandwidth information and channel quality information of the component carriers aggregated by the terminal and a preset allocation rule;

Exemplarily, the step S103 may include: obtaining, by using the formula (1), the to-be-scheduled data BSR_CC _i of the terminal to which the i th component carrier aggregated by the terminal is allocated:

Where ceil(·) represents the smallest integer greater than or equal to · BSR_UE is the size of the data to be scheduled of the terminal; W_BW_CC _i is the bandwidth of the i-th component carrier aggregated by the terminal; W_CQ_CC _i is the i-th component carrier of the terminal aggregation channel quality right information corresponding to the weight; the bandwidth W_BW_CC _a terminal polymerizable a-th component carriers; right channel quality information W_CQ_CC _a terminal polymerizable a-th component carriers corresponding to the weight; N terminal polymerizable component total number of carriers .

Preferably, the weight corresponding to the channel quality information of the i-th component carrier aggregated by the terminal may be a channel quality indicator (CQI, Channel Quality Indicator) or a modulation and coding strategy (MCS, Modulation) of the i-th component carrier aggregated by the terminal. And Coding Scheme) or spectrum efficiency (SE, Spectral Efficiency); in the embodiment of the present invention, the CQI of the component carrier is used as the weight corresponding to the channel quality information, and it can be understood that other channel qualities of the component carrier The information representation may also be applied to the technical solution of the embodiment of the present invention, and details are not described herein again.

It should be noted that when any component carrier aggregated by the terminal is not scheduled or the channel quality information of any component carrier aggregated by the terminal is determined according to a preset failure determination policy, the channel quality of all component carriers aggregated by the terminal is required. The weights corresponding to the information are all equal; in this embodiment, the weights corresponding to the channel quality information of all component carriers at this time are represented by 1.

In this embodiment, the preset failure determination policy may be that the channel quality information of the component carrier is invalid if the channel quality information of the component carrier is not rescheduled in the preset time interval after the channel quality information of the component carrier is scheduled. The preset time interval can be 80ms.

The following two specific situations are described in detail in conjunction with the technical solutions of the foregoing embodiments:

Case 1: scheduled to be set to the terminal data in the buffer size is shown by the BSR BSR_UE 15000bit, three terminal polymerizable component carriers (CC, Component Carrier), are labeled CC _1, CC ₂ and CC _3; wherein, CC ₁ The bandwidth W_BW_CC ₁ =10MHz, the bandwidth of CC ₂ is W_BW_CC ₂ =10MHz, and the CC ₃ bandwidth W_BW_CC ₃ =10MHz. If the channel quality information on CC2 is invalid, the weight W_CQ_CC corresponding to the channel quality information of each CC is the same. In the examples, it is represented by 1. Therefore, according to formula (1), the size of the data to be scheduled allocated by each CC is:

Case 2: The BSR_UE in the buffer indicated by the terminal BSR is still 15000 bits in size, and the terminal aggregates 3 CCs, which are labeled CC ₁ , CC ₂ and CC _{3 respectively} ; wherein the bandwidth of CC ₁ is W_BW_CC ₁ =10 MHz , the CC bandwidth of ₂ W_BW_CC ₂ = 15MHz, CC ₃ Bandwidth W_BW_CC ₃ = 20MHz, to CQI as the channel quality right information corresponding weight sets CC CQI = 5 on _1, the CC CQI = 10 on _2, CC ₃ CQI=12. Therefore, according to the formula (1), the size of the data to be scheduled allocated by each CC is:

CC ₁

CC ₂

CC ₃

As can be seen from the description of the above two cases, the technical solution of the present embodiment considers the bandwidth information and channel quality of each CC in the process of data allocation to be scheduled, so that the data to be scheduled in the terminal buffer can be A valid allocation is achieved between the component carriers.

The method for allocating data to be scheduled according to the embodiment of the present invention, the data to be scheduled is allocated according to the bandwidth information and the channel quality information of the component carriers aggregated by the terminal, so that the data to be scheduled in the terminal buffer is between the component carriers. Achieving effective allocation realizes the effect that the terminal receives and simultaneously transmits data on each component carrier.

Based on the same technical concept of the foregoing embodiment, referring to FIG. 2, a device for distributing data to be scheduled according to an embodiment of the present invention is provided. The device 20 may include: a first acquiring unit 201 and a second acquiring unit. 202 and an allocation unit 203, wherein

The first obtaining unit 201 is configured to acquire data to be scheduled of the terminal when the current allocation period arrives;

The second obtaining unit 202 is configured to acquire bandwidth information and channel quality information of each component carrier aggregated by the terminal, where the total number of component carriers aggregated by the terminal is at least one;

The allocating unit 203 is configured to allocate the to-be-scheduled data of the terminal to the components aggregated by the terminal according to the bandwidth information and the channel quality information of the component carriers aggregated by the terminal and the preset allocation rule. Carrier.

Exemplarily, the allocating unit 203 is specifically configured to obtain, by using the formula (2), the to-be-scheduled data BSR_CC _i of the terminal to which the i-th component carrier aggregated by the terminal is allocated:

In an embodiment of the present invention, when any component carrier aggregated by the terminal is not scheduled, or the channel quality information of any component carrier aggregated by the terminal is determined according to a preset failure determination policy, all components aggregated by the terminal are The weights corresponding to the channel quality information of the carriers are equal.

In an embodiment of the present invention, the weight corresponding to the channel quality information of the i-th component carrier that is aggregated by the terminal includes: a channel quality indicator CQI or a modulation and coding strategy MCS or spectrum of the i-th component carrier aggregated by the terminal. Efficiency SE.

Illustratively, referring to FIG. 3, the first obtaining unit 201 may include a receiving module 2011 and a parsing module 2012, where

The receiving module 2011 is configured to receive a buffer status report BSR sent by the terminal;

The parsing module 2012 is configured to parse the BSR to acquire data to be scheduled in the buffer area of the terminal.

The apparatus for allocating data to be scheduled according to the embodiment of the present invention allocates data to be scheduled according to the bandwidth information and channel quality information of each component carrier aggregated by the terminal, and enables the data to be scheduled in the terminal buffer to be in each component carrier. Achieving effective allocation between the two ends achieves the effect of simultaneous reception and simultaneous transmission of data on the component carriers of the terminal.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a 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.) including computer usable program code.

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 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 only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Industrial applicability

Claims

A method for allocating data to be scheduled, the method comprising:

Obtaining data to be scheduled of the terminal when the current allocation period arrives;

Obtaining bandwidth information and channel quality information of each component carrier that is aggregated by the terminal, where the total number of component carriers aggregated by the terminal is at least one;

The to-be-scheduled data of the terminal is allocated to each component carrier aggregated by the terminal according to bandwidth information and channel quality information of the component carriers aggregated by the terminal and a preset allocation rule.
The distribution method according to claim 1, wherein the data to be scheduled of the terminal is allocated to the terminal according to bandwidth information and channel quality information of the component carriers aggregated by the terminal and a preset allocation rule. Each component carrier includes:

Obtaining, by the following formula, the to-be-scheduled data BSR_CC i of the terminal to which the i-th component carrier aggregated by the terminal is allocated:

Wherein, ceil (·) indicates the smallest integer greater than or equal to ·; BSR_UE for the terminal to be scheduled data size; W_BW_CC i is the bandwidth carriers aggregated by the i-th component; W_CQ_CC i polymerized to the terminal The weight corresponding to the channel quality information of the i-th component carrier; W_BW_CC a is the bandwidth of the a-th component carrier aggregated by the terminal; W_CQ_CC a is the channel quality information of the a-th component carrier aggregated by the terminal Weight; N is the total number of component carriers aggregated by the terminal.
The allocation method according to claim 2, wherein when any one of the component carriers aggregated by the terminal is not scheduled or the channel quality information of any component carrier aggregated by the terminal is determined to be invalid according to a preset failure determination policy The channel quality information of all component carriers aggregated by the terminal is equal in weight.
The allocation method according to claim 2, wherein the weight corresponding to the channel quality information of the i-th component carrier aggregated by the terminal comprises: a channel quality indicator CQI or modulation of the i-th component carrier aggregated by the terminal With coding strategy MCS or spectrum efficiency SE.
The distribution method according to claim 1, wherein the acquiring data to be scheduled by the terminal comprises:

Receiving a buffer status report BSR sent by the terminal;

Parsing the data to be scheduled in the buffer area of the terminal.
A distribution device for scheduling data, the distribution device comprising: a first acquisition unit, a second acquisition unit, and an allocation unit, wherein

The first acquiring unit is configured to acquire data to be scheduled of the terminal when the current allocation period arrives;

The second acquiring unit is configured to acquire bandwidth information and channel quality information of each component carrier that is aggregated by the terminal, where the total number of component carriers aggregated by the terminal is at least one;

The allocating unit is configured to allocate the to-be-scheduled data of the terminal to each component carrier aggregated by the terminal according to the bandwidth information and the channel quality information of the component carriers and the preset allocation rule that are aggregated by the terminal.
The distribution device according to claim 6, wherein the allocating unit is configured to obtain, by using the following formula, the to-be-scheduled data BSR_CC i of the terminal to which the i-th component carrier aggregated by the terminal is allocated:

Wherein, ceil (·) indicates the smallest integer greater than or equal to ·; BSR_UE for the terminal to be scheduled data size; W_BW_CC i is the bandwidth carriers aggregated by the i-th component; W_CQ_CC i polymerized to the terminal The weight corresponding to the channel quality information of the i-th component carrier; W_BW_CC a is the bandwidth of the a-th component carrier aggregated by the terminal; W_CQ_CC a is the channel quality information of the a-th component carrier aggregated by the terminal Weight; N is the total number of component carriers aggregated by the terminal.
The distribution device according to claim 7, wherein when any component carrier aggregated by the terminal is not scheduled or the channel quality information of any component carrier aggregated by the terminal is determined to be invalid according to a preset failure determination policy The channel quality information of all component carriers aggregated by the terminal is equal in weight.
The distribution device according to claim 7, wherein the weight corresponding to the channel quality information of the i-th component carrier aggregated by the terminal comprises: a channel quality indicator CQI or modulation of the i-th component carrier aggregated by the terminal With coding strategy MCS or spectrum efficiency SE.
The distribution device according to claim 6, wherein the first acquisition unit comprises a receiving module and a parsing module, wherein

The receiving module is configured to receive a buffer status report BSR sent by the terminal;

The parsing module is configured to parse data to be scheduled in the buffer area of the terminal.