WO2012167524A1 - Method and system for pusch resource scheduling - Google Patents

Method and system for pusch resource scheduling Download PDF

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Publication number
WO2012167524A1
WO2012167524A1 PCT/CN2011/080584 CN2011080584W WO2012167524A1 WO 2012167524 A1 WO2012167524 A1 WO 2012167524A1 CN 2011080584 W CN2011080584 W CN 2011080584W WO 2012167524 A1 WO2012167524 A1 WO 2012167524A1
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Prior art keywords
prach
cell
neighboring
base station
pusch
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PCT/CN2011/080584
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French (fr)
Chinese (zh)
Inventor
李宁
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中兴通讯股份有限公司
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Publication of WO2012167524A1 publication Critical patent/WO2012167524A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/27—Control channels or signalling for resource management between access points

Definitions

  • the present invention relates to a resource scheduling technology, and in particular, to a physical uplink shared channel (PUSCH) resource scheduling method and system.
  • PUSCH physical uplink shared channel
  • a terminal sends a random access signal through a physical random access channel (PRACH), initiates a random access procedure, and a random access channel (RACH) It is used to process the random access signal transmitted by the PRACH and complete the processing of the random access procedure.
  • PRACH physical random access channel
  • RACH random access channel
  • the base station in order to improve the access probability and access delay of the terminal, the base station (eNB) needs to correctly demodulate the PRACH resource, but the random access procedure is subject to inter-cell interference of the uplink PUSCH channel from the neighboring cell.
  • the interference of the PUSCH channel in the neighboring cell is large, the resolution of the PRACH signal of the current cell is affected, and the error of the PRACH signal parsing may result in a decrease in the access probability and an increase in the access delay.
  • the main object of the present invention is to provide a PUSCH resource scheduling method and system, which can improve the accuracy of PRACH signal analysis in a neighboring cell, thereby improving access probability and reducing access delay.
  • a physical uplink shared channel PUSCH resource scheduling method includes:
  • the base station to which the cell belongs acquires the physical random access channel PRACH resource of the neighboring cell of the cell Information
  • the base station to which the cell belongs performs PUSCH resource scheduling on the user terminal in the cell according to the acquired PRACH resource information of the cell neighboring cell.
  • the information about the PRACH resource of the neighboring cell is obtained by the base station to which the cell belongs, and the PRACH resource information of the neighboring cell is obtained by using an X2 setup request message or a base station configuration update message from a base station to which the neighboring cell belongs.
  • the scheduling of the PUSCH resource for the user terminal in the cell according to the acquired PRACH resource information of the neighboring cell of the cell is:
  • the PUSCH resource scheduling is performed based on the resources that are not occupied by the PRACH in all the neighboring cells.
  • the resources that are not occupied by the PRACH in the neighboring cell cannot meet the requirements of the PUSCH resource scheduling, and the PUSCH resources of the non-edge users are scheduled to the resources occupied by the neighboring PRACH, and the power is performed. limit.
  • the PRACH resource information includes: a root sequence index rootSequenceIndex, a zero correlation sequence configuration, a zeroCorrelationZoneConfig, a high speed indication highSpeedFlag, a PRACH frequency domain offset prach-FreqOffset, and a PRACH configuration index prach-ConfigIndex.
  • a PUSCH resource scheduling system includes: an interface module, a neighboring area information collecting module, and a MAC scheduling module;
  • the interface module is configured to communicate with a base station in a cell neighboring cell
  • the neighboring area information collecting module is configured to obtain PRACH resource information of the cell neighboring area by using the interface module;
  • the MAC scheduling module is configured to perform PUSCH resource scheduling on the user terminal in the cell according to the PRACH resource information acquired by the neighboring area information collection module.
  • the neighboring area information collecting module obtains the PRACH resource information of the neighboring cell by using the interface module to obtain the PRACH resource information of the neighboring cell by using an X2 setup request message or a base station configuration update message from the base station to which the neighboring cell belongs.
  • the MAC scheduling module performs PUSCH resource scheduling on the user terminal in the cell according to the PRACH resource information acquired by the neighboring area information collection module:
  • the PUSCH resource scheduling is performed based on the resources that are not occupied by the PRACH in all the neighboring cells.
  • the resources that are not occupied by the PRACH in the neighboring cell cannot meet the requirements of the PUSCH resource scheduling, and the PUSCH resources of the non-edge users are scheduled to the resources occupied by the neighboring PRACH, and the power is performed. limit.
  • the PRACH resource information acquired by the neighboring area information collection module includes: rootSequencelndex, zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, and prach-ConfigIndex.
  • the base station when the base station allocates the PUSCH resource to the user terminal, the base station allocates the PRACH resource information of the neighboring cell of the cell where the user terminal is located.
  • the base station can control the PUSCH resource allocation of the cell to avoid the resources occupied by the PRACH in the neighboring cell, thereby ensuring that the cell schedules the user on the resource that is not occupied by the PRACH in the neighboring cell, and/or is occupied by the PRACH in the neighboring cell.
  • the non-edge user is scheduled on the resource, but the power is limited during scheduling. Therefore, the PUSCH resource scheduling of the cell reduces the interference caused by the PRACH in the neighboring cell, thereby improving the accuracy of the PRACH signal analysis in the neighboring cell and further improving the access. Probability, reducing access latency.
  • FIG. 1 is a schematic diagram of specific channel mapping relationships between PRACH and RACH;
  • FIG. 2 is a schematic flowchart of a PUSCH resource scheduling method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for a base station to acquire a PRACH resource information of a neighboring area in a neighboring area according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of another method for a base station to acquire PRACH resource information of a cell neighboring cell according to an embodiment of the present invention
  • FIG. 5 is a method for performing PUSCH resource scheduling on a user terminal in a cell according to an embodiment of the present invention. Schematic diagram of the process;
  • FIG. 6 is a schematic structural diagram of a PUSCH resource scheduling system according to an embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of a PUSCH resource scheduling method according to Embodiment 1 of the present invention.
  • FIG. 8 is a schematic flowchart of a PUSCH resource scheduling method according to Embodiment 2 of the present invention. detailed description
  • the base station can exchange PRACH resource information through an X2 SETUP REQUEST message or a base station configuration update (ENB CONFIGURATION UPDATE) message. Specifically, the service cell information in the X2 setup message or the eNB configuration update message is generally Served. Cell Information
  • the PRACH Configuration sub-cell transmits PRACH resource information.
  • the PRACH Configuration sub-cell can include the following parameters: root sequence index (rootSequencelndex), zero correlation sequence configuration (zeroCorrelationZoneConfig), high-speed indication (highSpeedFlag) ), PRACH frequency domain offset (prach-FreqOffset), PRACH configuration index (prach-Configlndex).
  • the current cell collects the PRACH resource information of the neighboring cell by exchanging the PRACH resource information with the neighboring cell, and controls the allocation of the PUSCH resource of the current cell by using the information, and avoids the PRACH of the neighboring cell.
  • the transmission ensures that the current cell is not in the neighboring area of the resources occupied by the PRACH, and the power is limited. Therefore, the PUSCH resource scheduling of the local cell reduces the interference to the PRACH resources in the neighboring cell, thereby achieving system performance. Upgrade.
  • FIG. 2 is a schematic flowchart of a PUSCH resource scheduling method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step 21 The base station to which the cell belongs acquires PRACH resource information of the neighboring cell of the cell.
  • Step 22 The base station to which the cell belongs performs PUSCH resource scheduling on the user terminal in the cell according to the acquired PRACH resource information of the cell neighboring cell.
  • the information may be obtained through an X2 setup request message or an eNB configuration update message.
  • the PRACH resource information of the neighboring cell if the base station to which the cell belongs is the eNB1, and the base station to which the cell neighboring cell belongs is the eNB2, as shown in FIG.
  • Step 211 eNB2 sends an X2 SETUP REQUEST to the eNB 1;
  • Step 212 The eNB1 receives the X2 SETUP REQUEST sent by the eNB2, saves the PRACH information of the eNB2, and returns the X2 SETUP RESPONSE to the eNB2;
  • Step 213 The eNB 1 sends an X2 SETUP REQUEST message to the eNB2.
  • Step 214 eNB2 receives the X2 SETUP REQUEST sent by eNB1, saves the PRACH information of eNB1, and returns X2 SETUP RESPONSE to eNB1;
  • step 21 specifically includes:
  • Step 21 The eNB1 receives the ENB CONFIGURATION UPDATE sent by the eNB2.
  • steps 211 to 214 are the process of establishing coupling between the eNB1 and the eNB2, and the order of the four steps is not specifically limited, and the order of 213, 214, 211, 212, or 211, 213, 212, 214, etc. Can achieve.
  • the method for performing PUSCH resource scheduling on the user terminal in the cell may be specifically as shown in FIG. 5, including:
  • Step 221 Perform PUSCH resource scheduling based on resources that are not occupied by PRACH in all neighboring cells.
  • the PUSCH resource of the cell edge user is not allowed to be scheduled to the neighboring cell. Resources used by PRACH.
  • the scheduling of PUSCH resources by the base station is generally performed by medium access control (MAC) scheduling. Module implementation.
  • MAC medium access control
  • the embodiment of the present invention further provides a PUSCH resource scheduling system.
  • the system includes: an interface module, a neighboring area information collecting module, and a MAC scheduling module;
  • the interface module is configured to communicate with a base station in a cell neighboring cell
  • the neighboring area information collecting module is configured to obtain PRACH resource information of the cell neighboring area by using the interface module;
  • the MAC scheduling module is configured to perform PUSCH resource scheduling on the user terminal in the cell according to the PRACH resource information acquired by the neighboring area information collection module.
  • the neighboring area information collecting module obtains the PRACH resource information of the neighboring cell of the cell through the interface module, and obtains the PRACH resource information of the neighboring cell by using an X2 setup request message or a base station configuration update message from the base station to which the neighboring cell belongs.
  • the MAC scheduling module performs PUSCH resource scheduling on the user terminal in the cell according to the PRACH resource information acquired by the neighboring area information collection module:
  • the PUSCH resources of the non-edge users are scheduled to the resources occupied by the neighboring area PRACH, and power limitation is performed.
  • the PRACH resource information acquired by the neighboring area information collection module includes: rootSequencelndex, zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, and prach-ConfigIndex.
  • FIG. 7 is a schematic flowchart of a PUSCH resource scheduling method according to Embodiment 1 of the present invention. As shown in FIG. 7, the process includes:
  • eNB2 sends an X2 SETUP REQUEST message to the eNB 1;
  • the eNB1 receives, by using the X2 interface module, the PRACH Configuration information in the Served Cell Information in the X2 SETUP REQUEST message, including rootSequencelndex. zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, prach-Configlndex, and saves the content in the neighboring area information collection module. Assembling X2 SETUP RESPONSE to eNB2;
  • eNB1 sends an X2 SETUP REQUEST message to eNB2;
  • eNB2 receives the PRACH Configuration information in the Served Cell Information in the X2 SETUP REQUEST message, including rootSequencelndex, zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, prach-Configlndex, and saves the content in its neighbor information collection module, and assembles X2 SETUP RESPONSE To eNBl;
  • the MAC scheduling module of the eNB1 obtains the latest PRACH information from the neighboring cell information collection module, and adopts the following strategy when scheduling the PUSCH resource: PUSCH resource scheduling preferentially considers resources used for PRACH of neighboring base stations; when PUSCH resources are limited, The central user can be scheduled to the resources used by the PRACH of the neighboring base station, but power is limited.
  • FIG. 8 is a schematic flowchart of a PUSCH resource scheduling method according to Embodiment 2 of the present invention. As shown in FIG. 8, the process includes:
  • the eNB1 receives the ENB CONFIGURATION UPDATE message sent by the eNB2, and updates the PRACH Configuration information of the Served Cell Information carried by the eNB1 to the neighboring area information collection module, including rootSequencelndex, zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, and prach-Configlndex.
  • the MAC scheduling module of the eNB1 obtains the latest PRACH information from the neighboring cell information collection module, and adopts the following strategy when scheduling the PUSCH resource: the PUSCH resource scheduling preferentially considers the resources used by the PRACH of the neighboring base station; if the PUSCH resource is limited, can The central user schedules the resources used by the PRACH to the neighboring base station, but the power is limited.
  • the current cell performs the collection of the PRACH resource information of the neighboring cell by using the PRACH resource information exchange method with the neighboring cell, and further controls the PUSCH resource allocation of the local cell by using the information.
  • the PRACH transmission of the neighboring cell is avoided, and the power of the cell is limited when the cell is scheduled to be scheduled or the scheduling is performed on the PRACH resource of the neighboring cell, so that the PUSCH resource scheduling of the cell is reduced to the interference of the PRACH of the neighboring cell.
  • the operation of all neighboring cells ensures that the interference of the PRACH resources of the cell is relatively small, thereby improving the access performance.

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Abstract

Disclosed is a method for Physical Uplink Shared Channel(PUSCH) resource scheduling, including: a base station to which a cell belongs obtaining the physical random access channel (PRACH) resource information about a neighbour of the cell; according to the obtained PRACH resource information about the neighbour of the cell, performing PUSCH resource scheduling for a user terminal in the cell. Also correspondingly disclosed is a system for PUSCH resource scheduling. By way of the present invention, the base station can control the PUSCH resource allocation of a cell to avoid the resources occupied by the PRACH of the neighbour of the cell, therefore, the PUSCH resource scheduling of the cell will cause less interference to the PRACH of the neighbour of the cell, thus increasing the parsing accuracy of the PRACH signal of the neighbour, and further increasing the access probability and decreasing access delay.

Description

一种 PUSCH资源调度方法及*** 技术领域  PUSCH resource scheduling method and system
本发明涉及资源调度技术， 尤其涉及一种物理上行共享信道（Physical Uplink Shared Channel, PUSCH ) 资源调度方法及***。 背景技术  The present invention relates to a resource scheduling technology, and in particular, to a physical uplink shared channel (PUSCH) resource scheduling method and system. Background technique
长期演进（ Long Term Evolution, LTE ) ***中 , 终端通过物理随机接 入信道（Physical Random Access Channel, PRACH )发送随机接入信号、 发起随机接入过程， 随机接入信道（Random Access Channel, RACH )用来 处理 PRACH发送的随机接入信号、 完成随机接入过程的处理， PRACH和 RACH的具体信道映射关系如图 1所示。  In a Long Term Evolution (LTE) system, a terminal sends a random access signal through a physical random access channel (PRACH), initiates a random access procedure, and a random access channel (RACH) It is used to process the random access signal transmitted by the PRACH and complete the processing of the random access procedure. The specific channel mapping relationship between the PRACH and the RACH is as shown in FIG. 1 .
现有技术中， 为了提高终端的接入概率和接入时延， 基站（eNB )需要 正确解调出 PRACH 资源， 但是， 随机接入过程会受到来自邻区的上行 PUSCH信道的小区间干扰的影响， 当邻区 PUSCH信道的干扰较大时， 会 影响当前小区 PRACH信号的解析，而 PRACH信号解析错误会导致接入概 率降低以及接入延迟增加。 发明内容  In the prior art, in order to improve the access probability and access delay of the terminal, the base station (eNB) needs to correctly demodulate the PRACH resource, but the random access procedure is subject to inter-cell interference of the uplink PUSCH channel from the neighboring cell. When the interference of the PUSCH channel in the neighboring cell is large, the resolution of the PRACH signal of the current cell is affected, and the error of the PRACH signal parsing may result in a decrease in the access probability and an increase in the access delay. Summary of the invention
有鉴于此，本发明的主要目的在于提供一种 PUSCH资源调度方法及系 统， 能够提高邻区 PRACH信号解析的准确性， 从而提高接入概率、 减少接 入延迟。  In view of this, the main object of the present invention is to provide a PUSCH resource scheduling method and system, which can improve the accuracy of PRACH signal analysis in a neighboring cell, thereby improving access probability and reducing access delay.
为达到上述目的， 本发明实施例的技术方案是这样实现的：  To achieve the above objective, the technical solution of the embodiment of the present invention is implemented as follows:
一种物理上行共享信道 PUSCH资源调度方法， 包括：  A physical uplink shared channel PUSCH resource scheduling method includes:
小区所属的基站获取所述小区邻区的物理随机接入信道 PRACH 资源 信息； The base station to which the cell belongs acquires the physical random access channel PRACH resource of the neighboring cell of the cell Information
所述小区所属的基站根据获取的小区邻区的 PRACH资源信息，对所述 小区中的用户终端进行 PUSCH资源调度。  The base station to which the cell belongs performs PUSCH resource scheduling on the user terminal in the cell according to the acquired PRACH resource information of the cell neighboring cell.
所述小区所属的基站获取所述小区邻区的 PRACH资源信息为： 通过来自邻区所属的基站的 X2 建立请求消息或基站配置更新消息获 取所述邻区的 PRACH资源信息。  The information about the PRACH resource of the neighboring cell is obtained by the base station to which the cell belongs, and the PRACH resource information of the neighboring cell is obtained by using an X2 setup request message or a base station configuration update message from a base station to which the neighboring cell belongs.
所述根据获取的小区邻区的 PRACH资源信息，对小区中的用户终端进 行 PUSCH资源调度为：  The scheduling of the PUSCH resource for the user terminal in the cell according to the acquired PRACH resource information of the neighboring cell of the cell is:
基于所有邻区 PRACH未占用的资源进行 PUSCH资源调度； 所有邻区 PRACH未占用的资源无法满足 PUSCH资源调度需求， 则将 非边缘用户的 PUSCH资源调度到邻区 PRACH所占用的资源， 并进行功率 限制。  The PUSCH resource scheduling is performed based on the resources that are not occupied by the PRACH in all the neighboring cells. The resources that are not occupied by the PRACH in the neighboring cell cannot meet the requirements of the PUSCH resource scheduling, and the PUSCH resources of the non-edge users are scheduled to the resources occupied by the neighboring PRACH, and the power is performed. limit.
所述 PRACH资源信息包括： 根序列索引 rootSequenceIndex、零相关序 列配置 zeroCorrelationZoneConfig、 高速指示 highSpeedFlag、 PRACH频域 偏置 prach-FreqOffset、 PRACH配置索引 prach-ConfigIndex。  The PRACH resource information includes: a root sequence index rootSequenceIndex, a zero correlation sequence configuration, a zeroCorrelationZoneConfig, a high speed indication highSpeedFlag, a PRACH frequency domain offset prach-FreqOffset, and a PRACH configuration index prach-ConfigIndex.
一种 PUSCH 资源调度***， 包括： 接口模块、 邻区信息采集模块、 MAC调度模块； 其中，  A PUSCH resource scheduling system includes: an interface module, a neighboring area information collecting module, and a MAC scheduling module;
所述接口模块， 设置为与小区邻区所述的基站进行通信；  The interface module is configured to communicate with a base station in a cell neighboring cell;
所述邻区信息采集模块，设置为通过接口模块获取小区邻区的 PRACH 资源信息；  The neighboring area information collecting module is configured to obtain PRACH resource information of the cell neighboring area by using the interface module;
所述 MAC调度模块，设置为根据邻区信息采集模块获取的 PRACH资 源信息， 对所述小区中的用户终端进行 PUSCH资源调度。  The MAC scheduling module is configured to perform PUSCH resource scheduling on the user terminal in the cell according to the PRACH resource information acquired by the neighboring area information collection module.
所述邻区信息采集模块通过接口模块获取小区邻区的 PRACH 资源信 息为：通过来自邻区所属的基站的 X2建立请求消息或基站配置更新消息获 取所述邻区的 PRACH资源信息。 所述 MAC调度模块根据邻区信息采集模块获取的 PRACH资源信息， 对小区中的用户终端进行 PUSCH资源调度为： The neighboring area information collecting module obtains the PRACH resource information of the neighboring cell by using the interface module to obtain the PRACH resource information of the neighboring cell by using an X2 setup request message or a base station configuration update message from the base station to which the neighboring cell belongs. The MAC scheduling module performs PUSCH resource scheduling on the user terminal in the cell according to the PRACH resource information acquired by the neighboring area information collection module:
基于所有邻区 PRACH未占用的资源进行 PUSCH资源调度； 所有邻区 PRACH未占用的资源无法满足 PUSCH资源调度需求， 则将 非边缘用户的 PUSCH资源调度到邻区 PRACH所占用的资源， 并进行功率 限制。  The PUSCH resource scheduling is performed based on the resources that are not occupied by the PRACH in all the neighboring cells. The resources that are not occupied by the PRACH in the neighboring cell cannot meet the requirements of the PUSCH resource scheduling, and the PUSCH resources of the non-edge users are scheduled to the resources occupied by the neighboring PRACH, and the power is performed. limit.
所述邻区信息采集模块获取的 PRACH 资源信息包括： rootSequencelndex 、 zeroCorrelationZoneConfig 、 highSpeedFlag 、 prach-FreqOffset、 prach-ConfigIndex。  The PRACH resource information acquired by the neighboring area information collection module includes: rootSequencelndex, zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, and prach-ConfigIndex.
本发明实施例所述的 PUSCH资源调度方法及***，基站为用户终端分 配 PUSCH资源时， 结合用户终端所在小区的邻区的 PRACH资源信息进行 分配。 通过本发明实施例， 基站可以控制小区的 PUSCH资源分配尽量避开 邻区 PRACH占用的资源，从而保证该小区在邻区 PRACH未占用的资源上 调度用户， 和 /或， 在邻区 PRACH 占用的资源上调度非边缘用户， 但调度 时功率受限， 这样， 该小区的 PUSCH资源调度就会减少给邻区的 PRACH 带来的干扰，从而提高邻区 PRACH信号解析的准确性，进一步提高接入概 率、 减少接入延迟。 附图说明  In the PUSCH resource scheduling method and system according to the embodiment of the present invention, when the base station allocates the PUSCH resource to the user terminal, the base station allocates the PRACH resource information of the neighboring cell of the cell where the user terminal is located. With the embodiment of the present invention, the base station can control the PUSCH resource allocation of the cell to avoid the resources occupied by the PRACH in the neighboring cell, thereby ensuring that the cell schedules the user on the resource that is not occupied by the PRACH in the neighboring cell, and/or is occupied by the PRACH in the neighboring cell. The non-edge user is scheduled on the resource, but the power is limited during scheduling. Therefore, the PUSCH resource scheduling of the cell reduces the interference caused by the PRACH in the neighboring cell, thereby improving the accuracy of the PRACH signal analysis in the neighboring cell and further improving the access. Probability, reducing access latency. DRAWINGS
图 1为 PRACH和 RACH的具体信道映射关系示意图；  FIG. 1 is a schematic diagram of specific channel mapping relationships between PRACH and RACH;
图 2为本发明实施例一种 PUSCH资源调度方法流程示意图； 图 3为本发明实施例一种基站获取 '』、区邻区的 PRACH资源信息的方法 流程示意图；  2 is a schematic flowchart of a PUSCH resource scheduling method according to an embodiment of the present invention; FIG. 3 is a schematic flowchart of a method for a base station to acquire a PRACH resource information of a neighboring area in a neighboring area according to an embodiment of the present invention;
图 4为本发明实施例另一种基站获取小区邻区的 PRACH资源信息的方 法流程示意图；  4 is a schematic flowchart of another method for a base station to acquire PRACH resource information of a cell neighboring cell according to an embodiment of the present invention;
图 5为本发明实施例对小区中的用户终端进行 PUSCH资源调度的方法 流程示意图； FIG. 5 is a method for performing PUSCH resource scheduling on a user terminal in a cell according to an embodiment of the present invention; Schematic diagram of the process;
图 6为本发明实施例一种 PUSCH资源调度***结构示意图；  6 is a schematic structural diagram of a PUSCH resource scheduling system according to an embodiment of the present invention;
图 7为本发明实施例 1 PUSCH资源调度方法流程示意图；  7 is a schematic flowchart of a PUSCH resource scheduling method according to Embodiment 1 of the present invention;
图 8为本发明实施例 2 PUSCH资源调度方法流程示意图。 具体实施方式  FIG. 8 is a schematic flowchart of a PUSCH resource scheduling method according to Embodiment 2 of the present invention. detailed description
基站之间可以通过 X2建立请求（X2 SETUP REQUEST ) 消息或基站 配置更新 ( ENB CONFIGURATION UPDATE ) 消息进行 PRACH资源信息 的交换， 具体的， 一般通过 X2建立消息或 eNB配置更新消息中服务小区 信息（ Served Cell Information )信元的 PRACH配置（ PRACH Configuration ) 子信元传递 PRACH资源信息， PRACH Configuration子信元中可以包括以 下参数： 根序列 索 引 ( rootSequencelndex ) , 零相关序列 配置 ( zeroCorrelationZoneConfig ), 高速指示（ highSpeedFlag )、 PRACH频域偏 置（prach-FreqOffset )、 PRACH配置索引 （ prach-Configlndex )。  The base station can exchange PRACH resource information through an X2 SETUP REQUEST message or a base station configuration update (ENB CONFIGURATION UPDATE) message. Specifically, the service cell information in the X2 setup message or the eNB configuration update message is generally Served. Cell Information The PRACH Configuration sub-cell transmits PRACH resource information. The PRACH Configuration sub-cell can include the following parameters: root sequence index (rootSequencelndex), zero correlation sequence configuration (zeroCorrelationZoneConfig), high-speed indication (highSpeedFlag) ), PRACH frequency domain offset (prach-FreqOffset), PRACH configuration index (prach-Configlndex).
基于此，本发明的基本思想是： 当前小区通过与邻区的 PRACH资源信 息的交换，收集邻区的 PRACH资源信息，通过这些信息来控制当前小区的 PUSCH 资源的分配， 避开邻区的 PRACH传输， 保证当前小区不在邻区 PRACH占用的资源上调度边缘用户或者调度时功率受限， 这样， 本小区的 PUSCH资源调度就会减少对邻区的 PRACH资源带来的干扰， 从而达到系 统性能的提升。  Based on this, the basic idea of the present invention is: The current cell collects the PRACH resource information of the neighboring cell by exchanging the PRACH resource information with the neighboring cell, and controls the allocation of the PUSCH resource of the current cell by using the information, and avoids the PRACH of the neighboring cell. The transmission ensures that the current cell is not in the neighboring area of the resources occupied by the PRACH, and the power is limited. Therefore, the PUSCH resource scheduling of the local cell reduces the interference to the PRACH resources in the neighboring cell, thereby achieving system performance. Upgrade.
图 2为本发明实施例一种 PUSCH资源调度方法流程示意图，如图 2所 示， 该方法包括：  FIG. 2 is a schematic flowchart of a PUSCH resource scheduling method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
步驟 21 : 小区所属的基站获取所述小区邻区的 PRACH资源信息。 步驟 22: 所述小区所属的基站根据获取的小区邻区的 PRACH资源信 息， 对所述小区中的用户终端进行 PUSCH资源调度。  Step 21: The base station to which the cell belongs acquires PRACH resource information of the neighboring cell of the cell. Step 22: The base station to which the cell belongs performs PUSCH resource scheduling on the user terminal in the cell according to the acquired PRACH resource information of the cell neighboring cell.
步驟 21中， 具体可以通过 X2建立请求消息或 eNB配置更新消息获取 邻区的 PRACH资源信息， 如果小区所属的基站为 eNBl、 小区邻区所属的 基站为 eNB2, 则如图 3所示， 步驟 21具体包括： In step 21, the information may be obtained through an X2 setup request message or an eNB configuration update message. The PRACH resource information of the neighboring cell, if the base station to which the cell belongs is the eNB1, and the base station to which the cell neighboring cell belongs is the eNB2, as shown in FIG.
步驟 211 : eNB2发送 X2 SETUP REQUEST给 eNB 1；  Step 211: eNB2 sends an X2 SETUP REQUEST to the eNB 1;
步驟 212: eNBl收到 eNB2发送的 X2 SETUP REQUEST, 保存 eNB2 的 PRACH信息， 返回 X2 SETUP RESPONSE给 eNB2;  Step 212: The eNB1 receives the X2 SETUP REQUEST sent by the eNB2, saves the PRACH information of the eNB2, and returns the X2 SETUP RESPONSE to the eNB2;
步驟 213: eNB 1发送 X2 SETUP REQUEST消息给 eNB2；  Step 213: The eNB 1 sends an X2 SETUP REQUEST message to the eNB2.
步驟 214: eNB2收到 eNBl发送的 X2 SETUP REQUEST, 保存 eNBl 的 PRACH信息， 返回 X2 SETUP RESPONSE给 eNBl；  Step 214: eNB2 receives the X2 SETUP REQUEST sent by eNB1, saves the PRACH information of eNB1, and returns X2 SETUP RESPONSE to eNB1;
或者， 如图 4所示， 步驟 21具体包括：  Or, as shown in FIG. 4, step 21 specifically includes:
步驟 21 Γ: eNBl收到 eNB2发送的 ENB CONFIGURATION UPDATE; 步驟 212，： eNBl更新保存 eNB2的 PRACH资源信息， 返回基站配置 更新确认（ ENB CONFIGURATION UPDATE ACKNOWLEDGE )给 eNB2。  Step 21: The eNB1 receives the ENB CONFIGURATION UPDATE sent by the eNB2. Step 212: The eNB1 updates and saves the PRACH resource information of the eNB2, and returns an ENB CONFIGURATION UPDATE ACKNOWLEDGE to the eNB2.
需要说明的是， 步驟 211〜步驟 214是 eNBl和 eNB2建立偶联的过程， 这四个步驟的顺序不作具体限定， 213、 214、 211、 212, 或者， 211、 213、 212、 214等顺序均可实现。  It should be noted that the steps 211 to 214 are the process of establishing coupling between the eNB1 and the eNB2, and the order of the four steps is not specifically limited, and the order of 213, 214, 211, 212, or 211, 213, 212, 214, etc. Can achieve.
步驟 22中， 对小区中的用户终端进行 PUSCH资源调度的方法具体可 以如图 5所示， 包括：  In the step 22, the method for performing PUSCH resource scheduling on the user terminal in the cell may be specifically as shown in FIG. 5, including:
步驟 221：基于所有邻区 PRACH未占用的资源进行 PUSCH资源调度。 步驟 222: 所有邻区 PRACH未占用的资源无法满足 PUSCH资源调度 需求，则允许非边缘用户的 PUSCH资源调度到邻区 PRACH所占用的资源， 这里， 不允许小区边缘用户的 PUSCH资源调度到邻区 PRACH所占用的资 源。  Step 221: Perform PUSCH resource scheduling based on resources that are not occupied by PRACH in all neighboring cells. Step 222: The resources that are not occupied by the PRACH in the neighboring cell cannot meet the requirements of the PUSCH resource scheduling, and the PUSCH resources of the non-edge user are allowed to be allocated to the resources occupied by the neighboring cell PRACH. Here, the PUSCH resource of the cell edge user is not allowed to be scheduled to the neighboring cell. Resources used by PRACH.
需要说明的是， 非边缘用户的 PUSCH资源调度到邻区 PRACH所占用 的资源时， 需要对其功率进行限制。  It should be noted that when the PUSCH resource of the non-edge user is scheduled to the resources occupied by the neighboring area PRACH, the power needs to be limited.
基站对 PUSCH资源的调度一般由其中的介质访问控制 （MAC )调度 模块实现。 The scheduling of PUSCH resources by the base station is generally performed by medium access control (MAC) scheduling. Module implementation.
本发明实施例还相应地提出一种 PUSCH资源调度***， 如图 6所示， 该***包括： 接口模块、 邻区信息采集模块、 MAC调度模块； 其中，  The embodiment of the present invention further provides a PUSCH resource scheduling system. As shown in FIG. 6, the system includes: an interface module, a neighboring area information collecting module, and a MAC scheduling module;
所述接口模块， 设置为与小区邻区所述的基站进行通信；  The interface module is configured to communicate with a base station in a cell neighboring cell;
所述邻区信息采集模块，设置为通过接口模块获取小区邻区的 PRACH 资源信息；  The neighboring area information collecting module is configured to obtain PRACH resource information of the cell neighboring area by using the interface module;
所述 MAC调度模块，设置为根据邻区信息采集模块获取的 PRACH资 源信息， 对所述小区中的用户终端进行 PUSCH资源调度。  The MAC scheduling module is configured to perform PUSCH resource scheduling on the user terminal in the cell according to the PRACH resource information acquired by the neighboring area information collection module.
所述邻区信息采集模块通过接口模块获取小区邻区的 PRACH 资源信 息为：通过来自邻区所属的基站的 X2建立请求消息或基站配置更新消息获 取所述邻区的 PRACH资源信息。  The neighboring area information collecting module obtains the PRACH resource information of the neighboring cell of the cell through the interface module, and obtains the PRACH resource information of the neighboring cell by using an X2 setup request message or a base station configuration update message from the base station to which the neighboring cell belongs.
所述 MAC调度模块根据邻区信息采集模块获取的 PRACH资源信息， 对小区中的用户终端进行 PUSCH资源调度为：  The MAC scheduling module performs PUSCH resource scheduling on the user terminal in the cell according to the PRACH resource information acquired by the neighboring area information collection module:
基于所有邻区 PRACH未占用的资源进行 PUSCH资源调度；  Perform PUSCH resource scheduling based on resources that are not occupied by PRACH in all neighboring cells;
所有邻区 PRACH未占用的资源无法满足 PUSCH资源调度需求， 则将 非边缘用户的 PUSCH资源调度到邻区 PRACH所占用的资源， 并进行功率 限制。  If the resources that are not occupied by the PRACH in the neighboring cell cannot meet the requirements of the PUSCH resource scheduling, the PUSCH resources of the non-edge users are scheduled to the resources occupied by the neighboring area PRACH, and power limitation is performed.
所述邻区信息采集模块获取的 PRACH 资源信息包括： rootSequencelndex 、 zeroCorrelationZoneConfig 、 highSpeedFlag 、 prach-FreqOffset、 prach-ConfigIndex。  The PRACH resource information acquired by the neighboring area information collection module includes: rootSequencelndex, zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, and prach-ConfigIndex.
下面结合具体实施例对本发明的方案作进一步说明。  The solution of the present invention will be further described below in conjunction with specific embodiments.
实施例 1  Example 1
图 7为本发明实施例 1 PUSCH资源调度方法流程示意图，如图 7所示， 该流程包括：  FIG. 7 is a schematic flowchart of a PUSCH resource scheduling method according to Embodiment 1 of the present invention. As shown in FIG. 7, the process includes:
701： eNB2发送 X2 SETUP REQUEST消息给 eNB 1； 702: eNBl通过 X2接口模块收到 X2 SETUP REQUEST消息中的 Served Cell Information下的 PRACH Configuration信息 , 包括 rootSequencelndex . zeroCorrelationZoneConfig 、 highSpeedFlag 、 prach-FreqOffset 、 prach-Configlndex, 将内容保存在其邻区信息采集模块， 组装 X2 SETUP RESPONSE给 eNB2; 701: eNB2 sends an X2 SETUP REQUEST message to the eNB 1; 702: The eNB1 receives, by using the X2 interface module, the PRACH Configuration information in the Served Cell Information in the X2 SETUP REQUEST message, including rootSequencelndex. zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, prach-Configlndex, and saves the content in the neighboring area information collection module. Assembling X2 SETUP RESPONSE to eNB2;
703: eNBl发送 X2 SETUP REQUEST消息给 eNB2;  703: eNB1 sends an X2 SETUP REQUEST message to eNB2;
704: eNB2收到 X2 SETUP REQUEST消息中的 Served Cell Information 下 的 PRACH Configuration 信 息 , 包 括 rootSequencelndex 、 zeroCorrelationZoneConfig 、 highSpeedFlag 、 prach-FreqOffset 、 prach-Configlndex, 将内容保存在其邻区信息采集模块， 组装 X2 SETUP RESPONSE给 eNBl ;  704: eNB2 receives the PRACH Configuration information in the Served Cell Information in the X2 SETUP REQUEST message, including rootSequencelndex, zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, prach-Configlndex, and saves the content in its neighbor information collection module, and assembles X2 SETUP RESPONSE To eNBl;
705: eNBl的 MAC调度模块从邻区信息采集模块获取最新的 PRACH 信息， 在调度 PUSCH资源时采用如下策略： PUSCH资源调度优先考虑排 除邻接基站的 PRACH所用的资源； 在 PUSCH资源有限的情况下， 可以将 中心用户调度到邻接基站的 PRACH所用资源， 但是要进行功率受限。  705: The MAC scheduling module of the eNB1 obtains the latest PRACH information from the neighboring cell information collection module, and adopts the following strategy when scheduling the PUSCH resource: PUSCH resource scheduling preferentially considers resources used for PRACH of neighboring base stations; when PUSCH resources are limited, The central user can be scheduled to the resources used by the PRACH of the neighboring base station, but power is limited.
实施例 2  Example 2
图 8为本发明实施例 2 PUSCH资源调度方法流程示意图，如图 8所示， 该流程包括：  FIG. 8 is a schematic flowchart of a PUSCH resource scheduling method according to Embodiment 2 of the present invention. As shown in FIG. 8, the process includes:
801 : eNBl收到 eNB2发送的 ENB CONFIGURATION UPDATE消息， 将其携带的 Served Cell Information下的 PRACH Configuration信息， 包括 rootSequencelndex 、 zeroCorrelationZoneConfig 、 highSpeedFlag 、 prach-FreqOffset、 prach-Configlndex更新到邻区信息采集模块；  801: The eNB1 receives the ENB CONFIGURATION UPDATE message sent by the eNB2, and updates the PRACH Configuration information of the Served Cell Information carried by the eNB1 to the neighboring area information collection module, including rootSequencelndex, zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, and prach-Configlndex.
802: eNBl的 MAC调度模块从邻区信息采集模块获取最新的 PRACH 信息， 在调度 PUSCH资源时采用如下策略： PUSCH资源调度优先考虑排 除邻接基站的 PRACH所用的资源； 在 PUSCH资源有限的情况下， 可以将 中心用户调度到邻接基站的 PRACH所用资源， 但是要进行功率受限。 采用本发明实施例所述的方法及***， 当前小区通过与邻区的 PRACH 资源信息的交换方法，进行邻区的 PRACH资源信息的收集，进一步通过这 些信息来控制本小区的 PUSCH资源分配， 以避开邻区的 PRACH传输， 保 证本小区在不同于邻接基站的 PRACH 资源上调度边缘用户或者调度时功 率受限， 使本小区的 PUSCH资源调度减少给邻区的 PRACH带来的干扰。 同样， 所有邻区的操作也保证了本小区的 PRACH资源受到的干扰比较小， 从而提升了接入的性能。 802: The MAC scheduling module of the eNB1 obtains the latest PRACH information from the neighboring cell information collection module, and adopts the following strategy when scheduling the PUSCH resource: the PUSCH resource scheduling preferentially considers the resources used by the PRACH of the neighboring base station; if the PUSCH resource is limited, can The central user schedules the resources used by the PRACH to the neighboring base station, but the power is limited. According to the method and system of the embodiment of the present invention, the current cell performs the collection of the PRACH resource information of the neighboring cell by using the PRACH resource information exchange method with the neighboring cell, and further controls the PUSCH resource allocation of the local cell by using the information. The PRACH transmission of the neighboring cell is avoided, and the power of the cell is limited when the cell is scheduled to be scheduled or the scheduling is performed on the PRACH resource of the neighboring cell, so that the PUSCH resource scheduling of the cell is reduced to the interference of the PRACH of the neighboring cell. Similarly, the operation of all neighboring cells ensures that the interference of the PRACH resources of the cell is relatively small, thereby improving the access performance.
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。  The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

权利要求书 Claim
1、 一种物理上行共享信道 PUSCH资源调度方法， 其中， 该方法包括： 小区所属的基站获取所述小区邻区的物理随机接入信道 PRACH 资源 信息；  A physical uplink shared channel PUSCH resource scheduling method, where the method includes: acquiring, by a base station to which a cell belongs, a physical random access channel PRACH resource information of a neighboring cell of the cell;
所述小区所属的基站根据获取的小区邻区的 PRACH资源信息，对所述 小区中的用户终端进行 PUSCH资源调度。  The base station to which the cell belongs performs PUSCH resource scheduling on the user terminal in the cell according to the acquired PRACH resource information of the cell neighboring cell.
2、 根据权利要求 1所述的方法， 其中， 所述小区所属的基站获取所述 小区邻区的 PRACH资源信息为：  2. The method according to claim 1, wherein the base station to which the cell belongs acquires the PRACH resource information of the neighboring cell of the cell:
通过来自邻区所属的基站的 X2 建立请求消息或基站配置更新消息获 取所述邻区的 PRACH资源信息。  The PRACH resource information of the neighboring cell is obtained by an X2 setup request message or a base station configuration update message from a base station to which the neighboring cell belongs.
3、 根据权利要求 2 所述的方法， 其中， 所述根据获取的小区邻区的 PRACH资源信息， 对小区中的用户终端进行 PUSCH资源调度为：  The method according to claim 2, wherein the PUSCH resource scheduling for the user terminal in the cell according to the acquired PRACH resource information of the cell neighboring area is:
基于所有邻区 PRACH未占用的资源进行 PUSCH资源调度；  Perform PUSCH resource scheduling based on resources that are not occupied by PRACH in all neighboring cells;
所有邻区 PRACH未占用的资源无法满足 PUSCH资源调度需求， 则将 非边缘用户的 PUSCH资源调度到邻区 PRACH所占用的资源， 并进行功率 限制。  If the resources that are not occupied by the PRACH in the neighboring cell cannot meet the requirements of the PUSCH resource scheduling, the PUSCH resources of the non-edge users are scheduled to the resources occupied by the neighboring area PRACH, and power limitation is performed.
4、 根据权利要求 1至 3任一项所述的方法， 其中， 所述 PRACH资源 信息 包括： 根序列 索 引 rootSequencelndex、 零相关序列 配置 zeroCorrelationZoneConfig , 高速指示 highSpeedFlag、 PRACH 频域偏置 prach-FreqOffset、 PRACH配置索引 prach-ConfigIndex。  The method according to any one of claims 1 to 3, wherein the PRACH resource information comprises: a root sequence index rootSequencelndex, a zero correlation sequence configuration zeroCorrelationZoneConfig, a high speed indication highSpeedFlag, a PRACH frequency domain offset prach-FreqOffset, a PRACH Configure the index prach-ConfigIndex.
5、 一种 PUSCH资源调度***， 其中， 该***包括： 接口模块、 邻区 信息采集模块、 MAC调度模块； 其中，  A PUSCH resource scheduling system, where the system includes: an interface module, a neighboring area information collecting module, and a MAC scheduling module;
所述接口模块， 设置为与小区邻区所述的基站进行通信；  The interface module is configured to communicate with a base station in a cell neighboring cell;
所述邻区信息采集模块，设置为通过接口模块获取小区邻区的 PRACH 资源信息； 所述 MAC调度模块，设置为根据邻区信息采集模块获取的 PRACH资 源信息， 对所述小区中的用户终端进行 PUSCH资源调度。 The neighboring area information collecting module is configured to obtain PRACH resource information of the cell neighboring area by using the interface module; The MAC scheduling module is configured to perform PUSCH resource scheduling on the user terminal in the cell according to the PRACH resource information acquired by the neighboring area information collection module.
6、 根据权利要求 5所述的***， 其中， 所述邻区信息采集模块通过接 口模块获取小区邻区的 PRACH 资源信息为： 通过来自邻区所属的基站的 X2建立请求消息或基站配置更新消息获取所述邻区的 PRACH资源信息。  The system according to claim 5, wherein the neighboring area information collecting module acquires the PRACH resource information of the cell neighboring area by using the interface module, by: an X2 establishment request message or a base station configuration update message from a base station to which the neighboring area belongs. Obtaining PRACH resource information of the neighboring cell.
7、 根据权利要求 6所述的***， 其中， 所述 MAC调度模块根据邻区 信息采集模块获取的 PRACH资源信息， 对小区中的用户终端进行 PUSCH 资源调度为：  The system according to claim 6, wherein the MAC scheduling module performs PUSCH resource scheduling on the user terminal in the cell according to the PRACH resource information acquired by the neighboring area information collecting module:
基于所有邻区 PRACH未占用的资源进行 PUSCH资源调度； 所有邻区 PRACH未占用的资源无法满足 PUSCH资源调度需求， 则将 非边缘用户的 PUSCH资源调度到邻区 PRACH所占用的资源， 并进行功率 限制。  The PUSCH resource scheduling is performed based on the resources that are not occupied by the PRACH in all the neighboring cells. The resources that are not occupied by the PRACH in the neighboring cell cannot meet the requirements of the PUSCH resource scheduling, and the PUSCH resources of the non-edge users are scheduled to the resources occupied by the neighboring PRACH, and the power is performed. limit.
8、 根据权利要求 5至 7任一项所述的***， 其中， 所述邻区信息采集 模 块 获取 的 PRACH 资 源 信 息 包 括 ： rootSequencelndex 、 zeroCorrelationZoneConfig 、 highSpeedFlag 、 prach-FreqOffset 、 prach-Configlndex。  The system according to any one of claims 5 to 7, wherein the PRACH resource information obtained by the neighboring area information collecting module includes: rootSequencelndex, zeroCorrelationZoneConfig, highSpeedFlag, prach-FreqOffset, prach-Configlndex.
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