CN108990149B

Movatterモバイル変換

Info

Publication number: CN108990149B
Application number: CN201710414848.2A
Authority: CN
Inventors: 周欣; 陶雄强; 姜春霞; 吕征南
Original assignee: Potevio Information Technology Co Ltd
Current assignee: Potevio Information Technology Co Ltd
Priority date: 2017-06-05
Filing date: 2017-06-05
Publication date: 2021-10-26
Anticipated expiration: 2037-06-05
Also published as: CN108990149A

Abstract

Translated fromChinese

本发明实施例提供一种寻呼配置方法。所述方法包括：UE根据预先获取的寻呼周期和偏移量，确定寻呼时刻，所述寻呼时刻是eNB发送寻呼信息的时刻，所述寻呼周期是寻呼信息发送的周期，所述偏移量是寻呼周期内的帧号偏移值；在所述寻呼时刻，UE接收eNB发送的寻呼信息。本发明实施例的方法通过寻呼周期和偏移量计算寻呼信息的寻呼时刻，不同UE的寻呼信息的寻呼时刻相同，可实现在相同寻呼时刻向多个UE发送寻呼信息，从而可节省资源开销。

The embodiment of the present invention provides a paging configuration method. The method includes: the UE determines a paging time according to a pre-acquired paging cycle and an offset, the paging time is the time when the eNB sends the paging information, and the paging cycle is the cycle of sending the paging information, The offset is the frame number offset value in the paging cycle; at the paging moment, the UE receives the paging information sent by the eNB. The method of the embodiment of the present invention calculates the paging time of the paging information through the paging period and the offset, and the paging time of the paging information of different UEs is the same, so that the paging information can be sent to multiple UEs at the same paging time , thereby saving resource overhead.

Description

Translated fromChinese

寻呼配置方法Paging configuration method

技术领域technical field

本发明实施例涉及一种通信技术领域，特别是一种寻呼配置方法。The embodiments of the present invention relate to the field of communication technologies, and in particular, to a paging configuration method.

背景技术Background technique

在宽带接入系统中，系统可用带宽划分为多个连续或非连续的子带，每个子带上采用正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)技术传输。按照功能将子带划分为同步子带和普通子带。同步子带的主要功能是上下行的同步和广播信道，普通子带用于正常业务的传输。In a broadband access system, the available bandwidth of the system is divided into a plurality of consecutive or non-consecutive subbands, and each subband is transmitted using an orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) technology. The sub-bands are divided into synchronization sub-bands and normal sub-bands according to their functions. The main functions of the synchronization subband are uplink and downlink synchronization and broadcast channels, and the common subband is used for normal service transmission.

为了降低成本和实现复杂度，用户设备(UE，UserEquipment)支持多子带和单子带工作模式，即UE接收机带宽不必是整个系统带宽，可支持接收多个或单个子带，并不需要一定能够接收全部子带。根据硬件能力的不同，UE支持在全部或部分子带上工作，其中最简易(即成本低)的UE支持在单个子带上工作。这样，降低了对UE接收机带宽的要求，也减少系统对硬件能力的需求。In order to reduce cost and implementation complexity, user equipment (UE, UserEquipment) supports multi-subband and single-subband operating modes, that is, the UE receiver bandwidth does not have to be the entire system bandwidth, and can support receiving multiple or single subbands, which does not require certain All subbands can be received. Depending on the hardware capabilities, the UE supports working on all or part of the subbands, with the simplest (ie low cost) UE supporting working on a single subband. In this way, the requirement on the bandwidth of the UE receiver is reduced, and the requirement on the hardware capability of the system is also reduced.

电力负荷监控通讯网就是一个典型的应用场景，其频谱离散地分布在230M频段上。The power load monitoring communication network is a typical application scenario, and its spectrum is discretely distributed in the 230M frequency band.

图1示出了现有技术中专网230MHz频段频率资源分布示意图。FIG. 1 shows a schematic diagram of frequency resource distribution in the 230MHz frequency band of a private network in the prior art.

从图1中可以看出其频谱呈梳状，该频段的频率资源可划分为若个子带，其最低频点的子带为223.525MHz，最高频点的子带为231.65MHz。It can be seen from Figure 1 that its spectrum is comb-shaped, and the frequency resources of this frequency band can be divided into several subbands, the subband of the lowest frequency point is 223.525MHz, and the subband of the highest frequency point is 231.65MHz.

在3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)协议中规定网络可以向空闲状态和连接状态的UE发送寻呼信息。寻呼过程可以由核心网触发，用于通知某个UE接收寻呼信息，或者由基站(eNode B)触发，用于通知系统信息更新，以及通知UE接收地震、海啸预警系统或商业移动告警服务等信息。It is stipulated in the 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) protocol that the network can send paging information to the UE in the idle state and the connected state. The paging process can be triggered by the core network to notify a certain UE to receive paging information, or triggered by the base station (eNode B) to notify the system information update, and notify the UE to receive earthquake, tsunami warning systems or commercial mobile warning services and other information.

现有技术中寻呼过程如下，核心网的网元，如MME(Mobility Management Entity，移动性管理实体)通过在S1接口向基站发送寻呼请求(Paging Request)发起寻呼过程，每条寻呼请求携带被寻呼UE的标识。基站接收到寻呼请求后，解读其中的内容，得到所述UE的TAI(Tracking Area Identity，跟踪区域标识)列表，并在其下属于列表中跟踪区的小区进行空口的寻呼，并小区下的UE发送寻呼信息。In the prior art, the paging process is as follows. A network element of the core network, such as an MME (Mobility Management Entity, Mobility Management Entity), initiates a paging process by sending a paging request (Paging Request) to the base station on the S1 interface. The request carries the identity of the UE being paged. After receiving the paging request, the base station interprets the content, obtains the TAI (Tracking Area Identity, Tracking Area Identity) list of the UE, and performs air interface paging in the cell that belongs to the tracking area in the list, and downloads the cell to the cell. The UE sends paging information.

出于节电的考虑，UE接收寻呼信息遵循非连续接收(Discontinuous Reception，DRX)的原则，基站通过广播系统信息中默认的DRX相关的参数计算发送寻呼信息的时刻，并将默认的DRX相关的参数给小区内的所有UE，用于指示UE与基站相关的寻呼配置参数，使UE以同样的原则计算发送寻呼信息的时刻。DRX相关的参数也可为在S1建立请求消息和基站配置更新消息中的信元。For the sake of power saving, the UE receives the paging information according to the principle of Discontinuous Reception (DRX). The relevant parameters are given to all UEs in the cell, and are used to indicate the paging configuration parameters related to the UE and the base station, so that the UE can calculate the time of sending the paging information according to the same principle. The DRX-related parameters can also be information elements in the S1 setup request message and the base station configuration update message.

窄带物联网(Narrow Band Internet of Things,NB-IoT)是基于LTE演进的物联网技术(LTE enhanced MTC，eMTC)，随着标准技术的演进，在2016年4月发布的TS36.300和TS36.413协议中给出了普通用户寻呼优化和NB-IoT用户的寻呼优化机制。对于NB-IoT用户，寻呼优化机制也适用于NB-IoT用户。Narrow Band Internet of Things (NB-IoT) is an IoT technology based on LTE evolution (LTE enhanced MTC, eMTC). With the evolution of standard technology, TS36.300 and TS36 were released in April 2016. The 413 protocol provides paging optimization mechanisms for common users and paging optimization for NB-IoT users. For NB-IoT users, the paging optimization mechanism also applies to NB-IoT users.

在NB-IoT系统中，MME根据基站上报的寻呼辅助信息、最后服务小区信息、小区覆盖增强等级信息及预设的优化策略，优化寻呼消息下发的范围。在下发寻呼消息的时候，MME可以选择一个或多个基站下发，而寻呼辅助信息中的小区列表信息则不会被MME处理，直接伴随寻呼消息下发给基站，由基站进行处理，可以用于判断空口寻呼消息下发范围。In the NB-IoT system, the MME optimizes the range of paging message delivery according to the paging assistance information, the last serving cell information, the cell coverage enhancement level information and the preset optimization strategy reported by the base station. When delivering the paging message, the MME can select one or more base stations to deliver it, while the cell list information in the paging assistance information will not be processed by the MME, but will be delivered to the base station directly with the paging message, and the base station will process it. , which can be used to determine the delivery range of air interface paging messages.

对于NB-IoT用户寻呼DRX信息，其默认DRX信元包含在S1建立请求消息和eNode B配置更新消息中，用于指示NB-IoT UE默认的寻呼DRX参数。在S1口的寻呼消息中引入寻呼eDRX字段，用于指示NB-IoT系统中寻呼eDRX周期和寻呼时间窗口(Paging Time Window,PTW)。由于NB-IoT系统中业务不频繁的特性，NB-IoT系统中引入了超帧(Hyper-frame)，其中eDRX字段中的eDRX周期就是以超帧为单位的。NB-IoT UE首先与MME协商获得UE特定的eDRX。UE以及网络侧通过UE自身的国际移动用户标识(IMSI，International MobileSubscriber Identity)计算出UE标识(UE ID)，并使用相同原则和配置参数计算该UE所处的寻呼时刻。For NB-IoT user paging DRX information, its default DRX information element is included in the S1 setup request message and the eNode B configuration update message to indicate the default paging DRX parameters of the NB-IoT UE. The paging eDRX field is introduced into the paging message of the S1 port to indicate the paging eDRX cycle and the paging time window (Paging Time Window, PTW) in the NB-IoT system. Due to the infrequent services in the NB-IoT system, a hyper-frame (Hyper-frame) is introduced into the NB-IoT system, where the eDRX period in the eDRX field is in units of hyper-frames. The NB-IoT UE first negotiates with the MME to obtain the UE-specific eDRX. The UE and the network side calculate the UE identity (UE ID) through the UE's own International Mobile Subscriber Identity (IMSI, International Mobile Subscriber Identity), and use the same principles and configuration parameters to calculate the paging time of the UE.

确定寻呼时刻所在SFN及子帧的原则如下：先通过寻呼超帧(Paging Hyper-frame)的计算得到寻呼消息所在的超帧号(Hyper-SFN)。其次，通过寻呼传输窗的计算得到该UE的寻呼消息所在的可能的SFN区域范围。最后，通过计算PF/PO获得寻呼消息所在SFN及子帧。计算得出的寻呼时刻，是基站发送寻呼信息的时刻，也是UE监听基站发送寻呼信息的时刻。The principles for determining the SFN and the subframe where the paging moment is located are as follows: first, the hyper-frame number (Hyper-SFN) where the paging message is located is obtained by calculating the paging hyperframe (Paging Hyper-frame). Secondly, the possible SFN area range where the paging message of the UE is located is obtained through the calculation of the paging transmission window. Finally, the SFN and subframe where the paging message is located are obtained by calculating PF/PO. The calculated paging time is the time when the base station sends the paging information, and also the time when the UE monitors the paging information sent by the base station.

3GPP协议给出的寻呼时刻计算方法中，超帧号、寻呼传输窗起始位置所在的SFN、PF和PO的计算均与UE的IMSI相关，由于每个UE的IMSI不同，因此计算得到的PF和PO未必相同，从而每个NB-IoT UE的寻呼时刻未必相同。In the calculation method of the paging moment given by the 3GPP protocol, the calculation of the superframe number, SFN, PF and PO where the paging transmission window starts are all related to the IMSI of the UE. Since the IMSI of each UE is different, the calculation is The PF and PO are not necessarily the same, so the paging moment of each NB-IoT UE is not necessarily the same.

因为从3GPP协议中寻呼时刻计算方法可以看出，每个UE的寻呼时刻未必相同。当基站寻呼小区中的多个不同寻呼时刻的UE时，需在各个UE对应的寻呼时刻分别发送寻呼信息来进行寻呼。对于单子带UE而言，这种寻呼处理的技术方案可能进一步地增加寻呼传输时延，增加资源开销，影响整个系统资源的利用率。另外，较长延时地传输寻呼消息将导致无线资源长时间被寻呼消息占用，将影响其它用户业务数据的正常传输。Because it can be seen from the paging moment calculation method in the 3GPP protocol that the paging moment of each UE is not necessarily the same. When the base station paging multiple UEs at different paging moments in the cell, it needs to send paging information respectively at the paging moments corresponding to each UE to perform paging. For a single-subband UE, this technical solution for paging processing may further increase the paging transmission delay, increase resource overhead, and affect the utilization rate of the entire system resources. In addition, transmitting the paging message with a long delay will cause the radio resources to be occupied by the paging message for a long time, which will affect the normal transmission of service data of other users.

发明内容SUMMARY OF THE INVENTION

针对现有技术的缺陷，本发明实施例提供一种寻呼配置方法。Aiming at the defects of the prior art, an embodiment of the present invention provides a paging configuration method.

本发明实施例提供一种寻呼配置方法，包括：An embodiment of the present invention provides a paging configuration method, including:

UE根据预先获取的寻呼周期和偏移量，确定寻呼时刻，所述寻呼时刻是eNB发送寻呼信息的时刻，所述寻呼周期是寻呼信息发送的周期，所述偏移量是寻呼周期内的帧号偏移值；The UE determines the paging time according to the pre-acquired paging cycle and offset, the paging time is the time when the eNB sends the paging information, the paging cycle is the cycle of sending the paging information, and the offset is the frame number offset value within the paging cycle;

在所述寻呼时刻，UE接收eNB发送的寻呼信息。At the paging moment, the UE receives the paging information sent by the eNB.

eNB根据预设的寻呼周期和偏移量，确定发送寻呼信息的寻呼时刻，所述寻呼周期是寻呼信息发送的周期，所述偏移量是寻呼周期内的帧号偏移值；The eNB determines the paging moment for sending paging information according to a preset paging cycle and an offset, where the paging cycle is the cycle in which the paging information is sent, and the offset is the frame number offset within the paging cycle. shift value;

在所述寻呼时刻，eNB向预先确定的UE发送寻呼信息。At the paging moment, the eNB sends paging information to a predetermined UE.

所述UE根据预先获取的寻呼周期和偏移量，确定寻呼时刻，具体为，The UE determines the paging moment according to the pre-acquired paging cycle and offset, specifically:

根据从本地存储的数据中获取的寻呼周期和所述偏移量，确定所述寻呼时刻。The paging moment is determined according to the paging cycle obtained from the locally stored data and the offset.

UE接收eNB发送的寻呼配置信息，所述寻呼配置信息包括所述寻呼周期；The UE receives paging configuration information sent by the eNB, where the paging configuration information includes the paging cycle;

UE根据所述寻呼周期和从本地存储的数据中获取的偏移量，确定所述寻呼时刻；The UE determines the paging moment according to the paging cycle and the offset obtained from the locally stored data;

或者，or,

UE接收eNB发送的寻呼配置信息，所述寻呼配置信息包括所述寻呼周期和偏移量；The UE receives the paging configuration information sent by the eNB, where the paging configuration information includes the paging cycle and the offset;

UE根据所述寻呼周期和偏移量，确定所述寻呼时刻。The UE determines the paging moment according to the paging cycle and the offset.

所述UE接收eNB发送的寻呼配置信息，具体为，The UE receives the paging configuration information sent by the eNB, specifically:

UE接收eNB发送的系统信息，所述系统信息携带所述寻呼配置信息。The UE receives system information sent by the eNB, where the system information carries the paging configuration information.

所述寻呼时刻对所述寻呼周期取模，余数为所述偏移值，确定所述寻呼时刻。The paging time is modulo the paging cycle, and the remainder is the offset value to determine the paging time.

UE根据预先获取的寻呼周期、偏移量和发送次数，确定所述寻呼时刻，所述发送次数是寻呼周期内发送寻呼信息的次数；The UE determines the paging moment according to the pre-acquired paging cycle, the offset, and the number of times of sending, where the number of times of sending is the number of times that paging information is sent within the paging cycle;

或者，or,

UE根据预先获取的寻呼周期和偏移量，得到寻呼周期内eNB发送寻呼信息的起始寻呼时刻；The UE obtains the starting paging moment at which the eNB sends the paging information within the paging cycle according to the pre-acquired paging cycle and offset;

根据预先获取的发送次数，得到再次寻呼时刻，所述再次寻呼时刻与起始寻呼时刻位于同一寻呼周期；Obtaining the re-paging time according to the pre-obtained transmission times, and the re-paging time and the initial paging time are located in the same paging cycle;

根据所述起始寻呼时刻和所述再次寻呼时刻，确定所述寻呼时刻，所述寻呼时刻包括所述起始寻呼时刻和再次寻呼时刻。The paging time is determined according to the initial paging time and the re-paging time, and the paging time includes the initial paging time and the re-paging time.

所述在所述寻呼时刻，UE接收eNB发送的寻呼信息，具体为，The UE receives the paging information sent by the eNB at the paging moment, specifically:

在所述寻呼时刻，在预先确定的子带上，UE接收eNB发送的寻呼信息。At the paging moment, on a predetermined subband, the UE receives the paging information sent by the eNB.

由上述技术方案可知，本发明实施例提供的寻呼配置方法，所述方法通过寻呼周期和偏移量计算寻呼信息的寻呼时刻，不同UE的寻呼信息的寻呼时刻相同，可实现在相同寻呼时刻向多个UE发送寻呼信息，从而可节省资源开销。It can be seen from the above technical solutions that the paging configuration method provided by the embodiment of the present invention calculates the paging time of the paging information through the paging period and the offset, and the paging time of the paging information of different UEs is the same, which can be The paging information is sent to multiple UEs at the same paging moment, thereby saving resource overhead.

附图说明Description of drawings

图1为现有技术中提供的专网230MHz频段频率资源分布示意图；FIG. 1 is a schematic diagram of frequency resource distribution in the 230MHz frequency band of a private network provided in the prior art;

图2为本发明一实施例提供的一种寻呼配置方法的流程示意图；FIG. 2 is a schematic flowchart of a paging configuration method according to an embodiment of the present invention;

图3为本发明又一实施例提供的一种寻呼配置方法的流程示意图；3 is a schematic flowchart of a paging configuration method according to another embodiment of the present invention;

图4为本发明又一实施例提供的一种寻呼配置方法的信令交互示意图。FIG. 4 is a schematic diagram of signaling interaction of a paging configuration method according to another embodiment of the present invention.

具体实施方式Detailed ways

为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本发明实施例一部分实施例，而不是全部的实施例。In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are the Inventive Embodiments are some of the embodiments, but not all of the embodiments.

图2示出了本发明一实施例提供的一种寻呼配置方法的流程示意图。FIG. 2 shows a schematic flowchart of a paging configuration method provided by an embodiment of the present invention.

当核心网需向UE发送下行数据时，将向基站发送寻呼请求，所述寻呼请求包括至少一个IMSI，基站接收所述寻呼请求，在预设的寻呼时刻，向所述用户标识对应的UE发送寻呼信息。When the core network needs to send downlink data to the UE, it will send a paging request to the base station, and the paging request includes at least one IMSI. The corresponding UE sends paging information.

应当说明的是，UE接收寻呼信息遵循非连续接收的原则，基站在寻呼时刻在寻呼UE所在子带上发送相应的寻呼信息，UE在该子带上尝试接收寻呼信息，当UE成功地接收到寻呼信息，并且在该寻呼信息中有属于自己的寻呼时，UE在网络侧为其配置PDCCH信道所在时刻监听PDCCH。It should be noted that when the UE receives paging information, the principle of discontinuous reception is followed. The base station sends the corresponding paging information on the subband where the paging UE is located at the paging moment, and the UE attempts to receive the paging information on the subband. The UE successfully receives the paging information, and when the paging information contains its own paging, the UE monitors the PDCCH at the moment when the network side configures the PDCCH channel for it.

参照图2，本发明实施例提出的方法具体包括以下步骤：2 , the method proposed in the embodiment of the present invention specifically includes the following steps:

步骤11、UE根据预先获取的寻呼周期和偏移量，确定寻呼时刻，所述寻呼时刻是eNB发送寻呼信息的时刻，所述寻呼周期是寻呼信息发送的周期，所述偏移量是寻呼周期内的帧号偏移值。Step 11: The UE determines the paging time according to the pre-acquired paging cycle and offset. The paging time is the time when the eNB sends the paging information, and the paging cycle is the cycle of sending the paging information. The offset is the frame number offset value within the paging cycle.

在本步骤中，UE可预先获取确定基站发送寻呼信息的寻呼时刻所用的参数，寻呼周期和偏移量。In this step, the UE may obtain in advance the parameters used for determining the paging moment at which the base station sends the paging information, the paging cycle and the offset.

其中，所述寻呼周期表示发送寻呼时刻的时间间隔，所述帧号偏移值用于指示寻呼信息在所述寻呼周期内的第几个无线帧上发送。Wherein, the paging cycle represents the time interval for sending the paging time, and the frame number offset value is used to indicate the number of radio frames in which the paging information is sent in the paging cycle.

可选地，所述寻呼周期和所述帧号偏移值由基站配置的。Optionally, the paging cycle and the frame number offset value are configured by the base station.

可选地，所述寻呼周期和所述帧号偏移值可由其他方式获取。Optionally, the paging cycle and the frame number offset value can be obtained in other ways.

举例来说，所述寻呼周期是2000ms，当然，可根据实际情况进行配置，不以此为限。For example, the paging cycle is 2000ms, of course, it can be configured according to the actual situation, but not limited to this.

若寻呼周期以无线帧数目为单位配置时，相当于寻呼周期＝40。由于本发明中所应用的系统中一个无线帧的长度为25ms，若寻呼周期为2000ms时，就相当于40个无线帧的长度。当寻呼周期＝40，所述帧号偏移值为0时，可发送寻呼信息的无线帧号为0、40、80、120等。If the paging cycle is configured in units of the number of radio frames, it is equivalent to paging cycle=40. Since the length of one radio frame in the system applied in the present invention is 25ms, if the paging cycle is 2000ms, it is equivalent to the length of 40 radio frames. When the paging cycle=40 and the frame number offset value is 0, the radio frame numbers that can send paging information are 0, 40, 80, 120, and so on.

再举一个例子，假设当寻呼周期＝40，帧号偏移值为1时，可发送寻呼信息的无线帧号为1、41、81、121等。As another example, it is assumed that when the paging cycle=40 and the frame number offset value is 1, the radio frame numbers that can send paging information are 1, 41, 81, 121 and so on.

在本步骤中，UE根据寻呼周期和偏移量，可计算出所述发送寻呼信息的无线帧号，即可确定所述寻呼时刻，也就是说，所述寻呼时刻可与UE获取的寻呼周期和偏移量参数相关，且与UE自身的IMSI无关。In this step, the UE can calculate the radio frame number for sending the paging information according to the paging cycle and the offset, so as to determine the paging time, that is, the paging time can be related to the UE. The acquired paging cycle is related to the offset parameter, and has nothing to do with the UE's own IMSI.

进一步地，若所述寻呼请求包括多个IMSI，不同的UE使用相同的寻呼周期和偏移量，可获得相同的寻呼时刻。Further, if the paging request includes multiple IMSIs, different UEs can obtain the same paging moment by using the same paging cycle and offset.

步骤12、在所述寻呼时刻，UE接收eNB发送的寻呼信息。Step 12: At the paging moment, the UE receives the paging information sent by the eNB.

在本步骤中，基站在所述寻呼时刻，可通过两种方式向与IMSI对应的UE发送寻呼信息。In this step, at the paging moment, the base station may send paging information to the UE corresponding to the IMSI in two ways.

一种方式为通过PDCCH发送寻呼信息的调度授权信息，通过PDSCH发送寻呼信息。One way is to send the scheduling grant information of the paging information through the PDCCH, and send the paging information through the PDSCH.

相应地，UE在PDCCH监听寻呼的调度授权信息，再接收PDSCH信道上承载的寻呼信息。Correspondingly, the UE monitors the paging scheduling grant information on the PDCCH, and then receives the paging information carried on the PDSCH channel.

另一种方式为直接通过PDCCH发送寻呼信息。Another way is to send paging information directly through PDCCH.

相应地，UE在PDCCH监听一种包含寻呼信息的下行控制信息格式，即在所述的DCI格式中包含具体的寻呼信息，UE通过解析所述的DCI格式即可获取寻呼信息。这种方式有效地降低了寻呼传输时延，减少了系统资源的开销，进而有利于提升系统资源的利用率。Correspondingly, the UE monitors a downlink control information format including paging information on the PDCCH, that is, the DCI format includes specific paging information, and the UE can obtain the paging information by parsing the DCI format. This method effectively reduces the paging transmission delay, reduces the overhead of system resources, and further helps to improve the utilization rate of system resources.

更进一步地，由于不同UE的寻呼信息的寻呼时刻是相同的，表示基站可在相同的寻呼时刻，向不同的IMSI对应的UE发送寻呼信息，不同UE在相同的寻呼时刻，接收基站发送的寻呼信息，从而可节省资源开销。Further, since the paging moments of the paging information of different UEs are the same, it means that the base station can send paging information to UEs corresponding to different IMSIs at the same paging moment, and different UEs at the same paging moment, The paging information sent by the base station is received, thereby saving resource overhead.

本实施例提供的寻呼配置方法，至少具有以下技术效果：The paging configuration method provided by this embodiment has at least the following technical effects:

通过寻呼周期和偏移量计算寻呼时刻，不同UE的寻呼信息的寻呼时刻相同，可实现多个UE在相同寻呼时刻接收寻呼信息，从而可节省资源开销。The paging time is calculated by the paging period and the offset, and the paging time of the paging information of different UEs is the same, so that multiple UEs can receive the paging information at the same paging time, thereby saving resource overhead.

在上述实施例的基础上，本发明又一实施例提供的一种寻呼配置方法，所述方法包括以下步骤。On the basis of the above embodiment, another embodiment of the present invention provides a paging configuration method, the method includes the following steps.

eNode B通过在系统信息中携带寻呼配置信元，并在广播子带上广播给本小区的UE。UE在广播子带上接收系统信息中寻呼配置信元来获取寻呼发送的指示信息，即获知寻呼信息在网络侧发送的机会。The eNode B carries the paging configuration information element in the system information, and broadcasts it to the UE of the cell on the broadcast subband. The UE receives the paging configuration information element in the system information on the broadcast subband to obtain the indication information sent by the paging, that is, obtains the opportunity of sending the paging information on the network side.

在系统信息中包含所有UE共有的无线资源配置信息。本发明在系统信息中携带寻呼配置信元。寻呼信息以一个可配置的周期内发送，其寻呼配置信元包含寻呼信息发送周期(pagingCycle)和可选的发送帧号偏移量(offset-FrameNumber)。其中，寻呼信息的发送周期是指示给UE网络侧发送寻呼信息的寻呼周期参数。发送帧号偏移量是指示寻呼信息在发送周期内的第几个无线帧上发送，缺省值为0。该偏移量为可选项，当寻呼信息中不携带该偏移量参数时，按照缺省值来配置参数值。The system information includes radio resource configuration information common to all UEs. The present invention carries the paging configuration information element in the system information. The paging information is sent in a configurable cycle, and the paging configuration information element includes the paging information sending cycle (pagingCycle) and an optional sending frame number offset (offset-FrameNumber). The sending cycle of the paging information is a paging cycle parameter instructing the UE to send the paging information to the network side. The sending frame number offset indicates the number of radio frames in which the paging information is sent within the sending period, and the default value is 0. The offset is optional. When the offset parameter is not carried in the paging information, the parameter value is configured according to the default value.

具体地，该系统信息可以包含在主信息块(Master Information Block，MIB)或系统信息块(System Information Blocks，SIB)中。并通过广播子带发送给UE。Specifically, the system information may be included in a master information block (Master Information Block, MIB) or a system information block (System Information Blocks, SIB). and sent to the UE through the broadcast subband.

一旦接收到系统信息，UE将应用系统信息包含的配置。UE会应用寻呼配置信元包含的配置，再按照寻呼配置信元计算出每个寻呼消息发送周期内开始发送寻呼消息的寻呼时刻，以及该寻呼消息重复发送的时刻，并在这些时刻接收寻呼消息。Once the system information is received, the UE shall apply the configuration contained in the system information. The UE will apply the configuration contained in the paging configuration information element, and then calculate the paging time at which the paging message starts to be sent in each paging message sending cycle and the time when the paging message is repeatedly sent according to the paging configuration information element, and Paging messages are received at these times.

上述步骤11获取寻呼周期和所述偏移量的方式可有多种，本实施例以其中三种为例说明。There are many ways to obtain the paging cycle and the offset in the foregoing step 11, and this embodiment takes three of them as an example for description.

可选地，UE可根据从本地存储的数据中获取的寻呼周期和偏移量。Alternatively, the UE may base on the paging cycle and offset obtained from locally stored data.

具体地，UE可预先与基站进行约定协商，以获取寻呼周期和偏移量，并存储至本地，根据本地存储寻呼周期和偏移量，确定所述寻呼时刻。Specifically, the UE may negotiate with the base station in advance to obtain the paging cycle and offset, store them locally, and determine the paging moment according to the locally stored paging cycle and offset.

可选地，UE接收eNB发送的寻呼配置信息，所述寻呼配置信息包括所述寻呼周期；根据所述寻呼周期和从本地存储的数据中获取的偏移量，确定所述寻呼时刻。Optionally, the UE receives paging configuration information sent by the eNB, where the paging configuration information includes the paging cycle; and determines the paging cycle according to the paging cycle and an offset obtained from locally stored data. call time.

可选地，在寻呼场景中，无线资源配置信息包括寻呼配置信息，寻呼配置信息包括所述寻呼周期。Optionally, in a paging scenario, the radio resource configuration information includes paging configuration information, and the paging configuration information includes the paging cycle.

可选地，UE接收eNB发送的寻呼配置信息，所述寻呼配置信息包括所述寻呼周期和偏移量。Optionally, the UE receives paging configuration information sent by the eNB, where the paging configuration information includes the paging cycle and the offset.

可选地，UE可查看寻呼配置信息中是否包含所述偏移量，若没有，可从本地存储的数据中获取所述偏移量，并根据所述寻呼周期和偏移量，确定所述寻呼时刻。Optionally, the UE may check whether the offset is included in the paging configuration information, and if not, obtain the offset from locally stored data, and determine the offset according to the paging cycle and the offset. the paging time.

可选地，该偏移量为可选项，当寻呼配置信息中不携带该偏移量参数时，按照缺省值来配置参数值。Optionally, the offset is optional, and when the offset parameter is not carried in the paging configuration information, the parameter value is configured according to the default value.

在本步骤中，获取寻呼周期和所述偏移量后，根据获取寻呼周期和所述偏移量确定所述寻呼时刻，并在所述寻呼时刻接收基站发送的寻呼信息。In this step, after acquiring the paging cycle and the offset, the paging time is determined according to the obtained paging cycle and the offset, and the paging information sent by the base station is received at the paging time.

通过不同UE从本地存储的数据和/或寻呼配置信息中获取相同的寻呼周期和偏移量，可得到相同的寻呼时刻，不同UE的寻呼信息的寻呼时刻相同，可实现多个UE在相同寻呼时刻接收寻呼信息，从而可节省资源开销。By obtaining the same paging cycle and offset from locally stored data and/or paging configuration information for different UEs, the same paging time can be obtained, and the paging time of the paging information of different UEs is the same, and multiple Multiple UEs receive paging information at the same paging moment, thereby saving resource overhead.

步骤11、UE根据预先获取的寻呼周期和偏移量，确定寻呼时刻，所述寻呼时刻是eNB发送寻呼信息的时刻，所述寻呼周期是寻呼信息发送的周期，所述偏移量是寻呼周期内的帧号偏移值。Step 11, the UE determines the paging time according to the pre-acquired paging cycle and offset, the paging time is the time when the eNB sends the paging information, the paging cycle is the cycle of sending the paging information, the The offset is the frame number offset value within the paging cycle.

上述步骤11确定所述寻呼时刻的方式可有多种，本实施例举例说明其中一种。There are many ways to determine the paging time in the above step 11, and this embodiment illustrates one of them.

上述步骤11具体包括：The above step 11 specifically includes:

具体地，取模也是取余，UE以所述寻呼时刻为被除数，以所述寻呼周期为除数，舍弃商，余数为所述偏移值。Specifically, taking the modulo is also taking the remainder, the UE takes the paging time as the dividend and the paging cycle as the divisor, discards the quotient, and the remainder is the offset value.

可选地，所述寻呼时刻可采用无线帧表示。Optionally, the paging moment may be represented by a radio frame.

具体地，可根据以下公式计算得到：Specifically, it can be calculated according to the following formula:

(PF mod pagingCycle)＝offset-FrameNumber(PF mod pagingCycle)=offset-FrameNumber

其中，pagingCycle表示发送寻呼信息的寻呼周期，offset-FrameNumber表示寻呼信息在发送周期内的第几个无线帧上发送，缺省值为0。Wherein, pagingCycle represents the paging cycle for sending the paging information, offset-FrameNumber represents the radio frame in which the paging information is sent in the sending cycle, and the default value is 0.

举例来说，UE获取预设的寻呼周期2000ms，若pagingCycle以无线帧数目为单位配置时，相当于pagingCycle＝40。由于本发明中所应用的系统中一个无线帧的长度为25ms，若寻呼周期为2000ms时，就相当于40个无线帧的长度。当pagingCycle＝40，offset-FrameNumber为0时，根据上述公式就可以计算出PF，即发送寻呼信息的无线帧号SFN，例如可发送寻呼信息的无线帧号为0、40、80、120等。For example, the UE obtains a preset paging cycle of 2000ms, and if the pagingCycle is configured in units of the number of radio frames, it is equivalent to pagingCycle=40. Since the length of one radio frame in the system applied in the present invention is 25ms, if the paging cycle is 2000ms, it is equivalent to the length of 40 radio frames. When pagingCycle=40 and offset-FrameNumber is 0, PF can be calculated according to the above formula, that is, the radio frame number SFN for sending paging information. For example, the radio frame numbers that can send paging information are 0, 40, 80, 120 Wait.

再举一个例子，假设当pagingCycle＝40，offset-FrameNumber为1时，根据上述公式就可以计算出PF，即发送寻呼信息的无线帧号SFN，例如可发送寻呼信息的无线帧号为1、41、81、121等。As another example, assuming that when pagingCycle=40 and offset-FrameNumber is 1, PF can be calculated according to the above formula, that is, the radio frame number SFN for sending paging information, for example, the radio frame number that can send paging information is 1. , 41, 81, 121, etc.

通过寻呼信息的寻呼时刻与寻呼周期和偏移量有关，与UE自身的IMSI无关，可简化寻呼时刻的相关计算。The paging time of the paging information is related to the paging cycle and the offset, and has nothing to do with the IMSI of the UE itself, which can simplify the related calculation of the paging time.

在上述实施例的基础上，在步骤11和步骤12之间，上述方法还包括：On the basis of the above embodiment, between step 11 andstep 12, the above method further includes:

步骤13、获取发送次数，所述发送次数是寻呼周期内发送寻呼信息的次数。Step 13: Acquire the number of times of sending, where the number of times of sending is the number of times that paging information is sent within a paging cycle.

在本步骤中，UE除了获取寻呼周期和偏移量，还获取发送次数，所述发送次数可为预设的向UE发送寻呼信息的次数。In this step, the UE not only acquires the paging period and the offset, but also acquires the number of times of sending, where the number of times of sending may be a preset number of times of sending paging information to the UE.

其中，发送次数是基站在一个寻呼周期内向UE发送寻呼信息的次数。The number of times of sending is the number of times that the base station sends paging information to the UE within one paging cycle.

举例来说，发送次数可大于等于一次，表示一个寻呼周期内基站向UE发送寻呼信息的次数可为一次，也可为多次。For example, the number of times of sending may be greater than or equal to one, indicating that the number of times that the base station sends paging information to the UE within one paging cycle may be one time or multiple times.

可选地，发送次数可从本地存储的数据和/或寻呼配置信息中获取。Optionally, the number of times of sending may be obtained from locally stored data and/or paging configuration information.

具体地，UE根据寻呼周期、偏移量和发送次数，可确定对应发送次数的各寻呼时刻。Specifically, the UE may determine each paging moment corresponding to the number of times of transmission according to the paging cycle, the offset and the number of times of transmission.

进一步地，在所述寻呼时刻，UE分别接收寻呼信息。Further, at the paging moment, the UE receives paging information respectively.

UE通过如下公式得到在一个寻呼周期内开始发送寻呼信息的系统无线帧号SFN(PF-start帧)。The UE obtains the system radio frame number SFN (PF-start frame) that starts to send paging information within one paging cycle through the following formula.

(PF-start mod pagingCycle)＝offset-FrameNumber(PF-start mod pagingCycle)=offset-FrameNumber

PF-length是寻呼窗长，由发送重复次数(pagingNumRepetitions)来配置，即PF-length＝pagingNumRepetitions。PF-length is the length of the paging window, and is configured by the number of transmission repetitions (pagingNumRepetitions), that is, PF-length=pagingNumRepetitions.

一个寻呼周期内寻呼信息发送时刻为[PF-start，PF-start+1,…,PF-start+PF-length-1]。由此，可以确定寻呼时刻的系统无线帧号SFN。The paging information sending time in one paging cycle is [PF-start, PF-start+1, . . . , PF-start+PF-length-1]. Thereby, the system radio frame number SFN at the paging time can be determined.

在时域上，所有UE的寻呼信息都在以相同的周期计算的相同起始时刻发送，并且发送的重复次数相同。寻呼信息发送时刻通过应用寻呼配置信元中包含的配置信息。基站在寻呼发送周期内的第PF-start个无线帧到第PF-start+PF-length-1个无线帧上重复下发对UE的寻呼信息，UE在相应的寻呼时刻接收一个寻呼发送周期内eNode B发送的寻呼信息。通过重复接收寻呼信息，来增强UE的覆盖，提升寻呼的成功率。In the time domain, the paging information of all UEs are sent at the same start time calculated with the same cycle, and the number of repetitions of the sending is the same. The paging information is sent by applying the configuration information contained in the paging configuration information element. The base station repeatedly delivers paging information to the UE from the PF-start radio frame to the PF-start+PF-length-1 radio frame in the paging transmission period, and the UE receives a paging message at the corresponding paging moment. The paging information sent by the eNode B within the call sending period. By repeatedly receiving paging information, the coverage of the UE is enhanced and the success rate of paging is improved.

在本实施例中，UE按照寻呼配置信元计算出每个寻呼消息发送周期内开始发送寻呼消息的寻呼时刻，以及该寻呼消息重复发送的时刻，并在这些时刻接收寻呼消息。In this embodiment, the UE calculates, according to the paging configuration information element, the paging time at which the paging message starts to be sent and the time when the paging message is repeatedly sent in each paging message sending cycle, and receives the paging at these times. information.

在本步骤中，UE在一个寻呼周期内多次接收同一寻呼信息，从而提高UE接收寻呼信息的可靠性。In this step, the UE receives the same paging information multiple times in one paging cycle, thereby improving the reliability of the UE receiving the paging information.

通过设置发送次数，可确定多个发送寻呼信息的寻呼时刻，使UE在一个寻呼周期内接收多次寻呼信息，从而达到在小区覆盖增强下提高寻呼接收的性能。By setting the number of times of sending, multiple paging moments for sending paging information can be determined, so that the UE can receive multiple paging information in one paging cycle, so as to improve the performance of paging reception under the enhanced cell coverage.

步骤11具体为：Step 11 is as follows:

步骤111、UE根据预先获取的寻呼周期和偏移量，得到寻呼周期内eNB发送寻呼信息的起始寻呼时刻。Step 111 , the UE obtains, according to the pre-acquired paging cycle and offset, the starting paging time at which the eNB sends the paging information within the paging cycle.

在本步骤中，基站一个寻呼周期内发送多次寻呼信息，相应地，UE在一个寻呼周期内接收多次寻呼信息。In this step, the base station sends paging information multiple times in one paging cycle, and correspondingly, the UE receives paging information multiple times in one paging cycle.

具体地，可根据以下公式计算所述起始寻呼时刻。Specifically, the starting paging moment can be calculated according to the following formula.

(PF-start mod paging Cycle)＝offset-Frame Number(PF-start mod paging Cycle)=offset-Frame Number

其中，PF-start表示开始发送寻呼信息的无线帧，即所述起始寻呼时刻，pagingCycle表示寻呼周期，offset-Frame Number为偏移量。Wherein, PF-start represents a radio frame for starting to send paging information, that is, the starting paging moment, pagingCycle represents a paging cycle, and offset-Frame Number represents an offset.

举例来说，UE获取预设的寻呼周期2000ms，若pagingCycle以无线帧数目为单位配置时，相当于pagingCycle＝40。由于本发明中所应用的系统中一个无线帧的长度为25ms，若寻呼周期为2000ms时，就相当于40个无线帧的长度。当pagingCycle＝40，offset-FrameNumber为0时，根据上述公式就可以计算出PF，即发送寻呼信息的无线帧号SFN，例如可发送寻呼信息的无线帧号为0、40、80、120等。For example, the UE obtains a preset paging cycle of 2000ms, and if the pagingCycle is configured in units of the number of radio frames, it is equivalent to pagingCycle=40. Since the length of one radio frame in the system applied in the present invention is 25ms, if the paging cycle is 2000ms, it is equivalent to the length of 40 radio frames. When pagingCycle=40 and offset-FrameNumber is 0, PF can be calculated according to the above formula, that is, the radio frame number SFN for sending paging information, for example, the radio frame numbers that can send paging information are 0, 40, 80, 120 Wait.

步骤112、根据预先获取的发送次数，得到再次寻呼时刻，所述再次寻呼时刻与起始寻呼时刻位于同一寻呼周期。Step 112: Obtain the re-paging time according to the pre-acquired transmission times, where the re-paging time and the initial paging time are located in the same paging cycle.

假设一个寻呼周期的开始发送寻呼信息的无线帧号为0，假设当pagingNumRepetitions＝4时，则该寻呼周期内再次发送寻呼信息的无线帧号为1、2和3。下一个寻呼周期的开始发送寻呼信息的无线帧号为40，同理，该寻呼周期内再次发送寻呼信息的无线帧号为41、42和43。It is assumed that the radio frame number for sending paging information at the beginning of a paging cycle is 0, and when pagingNumRepetitions=4, the radio frame numbers for sending paging information again in the paging cycle are 1, 2 and 3. The radio frame number for sending paging information at the beginning of the next paging cycle is 40. Similarly, the radio frame numbers for sending paging information again in this paging cycle are 41, 42 and 43.

再举一个例子，假设当pagingCycle＝40，offset-FrameNumber为1时，根据上述公式就可以计算出PF-start，即各寻呼周期内开始发送寻呼信息的无线帧号SFN，例如可发送寻呼信息的无线帧号为1、41、81、121等。同样假设当pagingNumRepetitions＝4时，假设一个寻呼周期的开始发送寻呼信息的无线帧号为1，则该寻呼周期内再次发送寻呼信息的无线帧号为2、3和4。下一个寻呼周期的开始发送寻呼信息的无线帧号为41，该寻呼周期内再次发送寻呼信息的无线帧号为42、43和44。As another example, assuming that when pagingCycle=40 and the offset-FrameNumber is 1, the PF-start can be calculated according to the above formula, that is, the radio frame number SFN that starts to send paging information in each paging cycle. The radio frame numbers of the call information are 1, 41, 81, 121 and so on. It is also assumed that when pagingNumRepetitions=4, the radio frame number for sending paging information at the beginning of a paging cycle is 1, and the radio frame numbers for sending paging information again in the paging cycle are 2, 3 and 4. The radio frame number for sending paging information at the beginning of the next paging cycle is 41, and the radio frame numbers for sending paging information again in this paging cycle are 42, 43 and 44.

步骤113、根据所述起始寻呼时刻和所述再次寻呼时刻，确定所述寻呼时刻，所述寻呼时刻包括所述起始寻呼时刻和再次寻呼时刻。Step 113: Determine the paging time according to the initial paging time and the re-paging time, where the paging time includes the initial paging time and the re-paging time.

在时域上，所有UE的寻呼信息都在以相同的周期计算的相同起始时刻发送，并且发送的重复次数相同。寻呼信息发送时刻通过应用寻呼配置信元中包含的配置信息。基站在寻呼发送周期内的第PF-start个无线帧到第PF-start+PF-length-1个无线帧上重复下发对UE的寻呼信息，UE在相应的寻呼时刻接收一个寻呼发送周期内eNode B发送的寻呼信息。通过重复接收寻呼信息，在小区覆盖增强下提高寻呼接收的性能，提升寻呼的成功率。In the time domain, the paging information of all UEs are sent at the same start time calculated with the same cycle, and the number of repetitions of the sending is the same. The paging information is sent by applying the configuration information contained in the paging configuration information element. The base station repeatedly delivers paging information to the UE from the PF-start radio frame to the PF-start+PF-length-1 radio frame in the paging transmission period, and the UE receives a paging message at the corresponding paging time. The paging information sent by the eNode B within the call sending period. By repeatedly receiving paging information, the performance of paging reception is improved under the enhanced cell coverage, and the success rate of paging is improved.

需要说明的是，由于230MHz频段电力网系统的单子带帧结构设计，下行传输使用无线帧的前13个OFDM符号，以无线帧为单位进行数据调度传输，因此UE无需获知寻呼发送时刻的子帧号。具体地，该系统中一个无线帧的长度为25ms，其包含5个5ms的子帧，每子帧9个OFDM符号。其中根据该系统上下行业务的特征对上下行资源进行了规划。下行资源为子帧0的9个符号和子帧1的前4个符号，共13个符号。上行资源为子帧1的后4个符号和子帧2、子帧3、子帧4。It should be noted that due to the single-subband frame structure design of the power grid system in the 230MHz frequency band, the first 13 OFDM symbols of the radio frame are used for downlink transmission, and the data is scheduled and transmitted in units of radio frames, so the UE does not need to know the subframe at the time of paging transmission. No. Specifically, the length of one radio frame in the system is 25ms, which includes 5 subframes of 5ms, and each subframe has 9 OFDM symbols. The uplink and downlink resources are planned according to the characteristics of the uplink and downlink services of the system. The downlink resources are 9 symbols ofsubframe 0 and the first 4 symbols of subframe 1, a total of 13 symbols. The uplink resources are the last four symbols of subframe 1 andsubframe 2, subframe 3, andsubframe 4.

具体地，UE在寻呼周期内的第PF-start个无线帧到第PF-start+PF-length-1个无线帧上接收寻呼信息。Specifically, the UE receives the paging information from the PF-start th radio frame to the PF-start+PF-length-1 th radio frame in the paging cycle.

其中，寻呼信息包括至少一个用户标识，UE在一个寻呼周期内各寻呼时刻尝试接收寻呼信息，并对接收到的寻呼信息进行解析。The paging information includes at least one user identity, and the UE attempts to receive the paging information at each paging moment in a paging cycle, and parses the received paging information.

若UE成功地解析了该寻呼信息，则UE停止监听该寻呼周期内后续寻呼时刻(若在本次寻呼周期内在后续时刻还有寻呼时刻的情况下)，并且查看在该寻呼信息中是否有属于自己的寻呼，即寻呼信息中所述用户标识中是否包含自己的标识，若是，UE在网络侧为其配置PDCCH信道所在时刻监听PDCCH，来接收该UE下行数据，若否，则UE继续在下一个寻呼周期内的寻呼时刻监听寻呼信息。If the UE successfully parses the paging information, the UE stops monitoring the subsequent paging moments in the paging cycle (if there are paging moments in subsequent moments in this paging cycle), and checks the paging moments in the paging cycle. Whether there is its own paging in the paging information, that is, whether the user identity in the paging information contains its own identity, and if so, the UE monitors the PDCCH at the moment when the PDCCH channel is configured for it on the network side to receive the downlink data of the UE, If not, the UE continues to monitor the paging information at the paging moment in the next paging cycle.

若UE没有成功地解析了该寻呼信息，则UE继续监听下一寻呼时刻直至寻呼周期结束。If the UE fails to parse the paging information successfully, the UE continues to monitor the next paging moment until the paging cycle ends.

需要说明的是，当这个寻呼周期结束后UE没有成功解析寻呼信息或成功解析的寻呼信息中没有属于自己的寻呼时，UE在下一个寻呼周期内的寻呼时刻继续监听寻呼信息。It should be noted that, when the UE fails to successfully parse the paging information or the successfully parsed paging information does not have its own paging after the paging cycle ends, the UE continues to monitor the paging at the paging moment in the next paging cycle. information.

通过确定包括起始寻呼时刻和再次寻呼时刻的多个时刻，不仅可使计算简便，且使UE在一个寻呼周期内接收多次寻呼信息，可增强小区覆盖，并提高UE接收寻呼信息的成功率。By determining multiple times including the starting paging time and the re-paging time, not only can the calculation be simplified, but also the UE can receive multiple paging information in one paging cycle, which can enhance the cell coverage and improve the UE's ability to receive paging information. The success rate of calling information.

在上述实施例的基础上，本发明又一实施例提供的一种寻呼配置方法，所述方法的所述步骤12，具体为：On the basis of the above embodiment, another embodiment of the present invention provides a paging configuration method. Thestep 12 of the method is specifically:

具体地，eNode B在寻呼信息的寻呼时刻在各个子带上发送相应的寻呼信息。Specifically, the eNode B sends corresponding paging information on each subband at the paging moment of the paging information.

在寻呼时刻，按照记录的各个子带上待寻呼的UE来封装各子带上的寻呼信息，在相应的子带上按照规定的来发送对应的寻呼信息。At the paging moment, the paging information on each subband is encapsulated according to the recorded UE to be paged on each subband, and the corresponding paging information is sent on the corresponding subband according to regulations.

也就是说，基站会记录和维护UE所在驻留子带的子带号和该UE的C-RNTI值，并根据寻呼UE对应的子带来封装和发送寻呼信息。UE在寻呼时刻在自己所在的监听子带上接收寻呼信息，根据在自己所在的子带上接收的寻呼信息中包含的C-RNTI值来判断是否属于自己的寻呼。That is to say, the base station will record and maintain the subband number of the subband where the UE resides and the C-RNTI value of the UE, and encapsulate and send the paging information according to the subband corresponding to the paging UE. The UE receives paging information on the monitoring subband where it is located at the paging moment, and judges whether it belongs to its own paging according to the C-RNTI value included in the paging information received on the subband where it is located.

需要说明的是，监听子带是指UE监听PDCCH所在的子带。对于寻呼场景，监听子带为UE的驻留子带，即UE通过随机接入过程或网络侧的切换子带信令指示UE所驻留的子带。It should be noted that the monitoring subband refers to the subband where the UE monitors the PDCCH. For a paging scenario, the monitoring subband is the subband where the UE resides, that is, the UE indicates the subband where the UE resides through a random access procedure or switching subband signaling on the network side.

考虑到支持单子带用户，eNode B将UE的寻呼信息在该UE对应的监听子带上发送，以保证接收机受限的UE能够接收到寻呼信息。Considering that a single subband user is supported, the eNode B sends the paging information of the UE on the monitoring subband corresponding to the UE to ensure that the UE with limited receivers can receive the paging information.

图3示出了本发明又一实施例提供的一种寻呼配置方法的流程示意图。FIG. 3 shows a schematic flowchart of a paging configuration method provided by another embodiment of the present invention.

参照图3，本发明实施例提供的方法具体包括以下步骤：3, the method provided by the embodiment of the present invention specifically includes the following steps:

步骤21、eNB根据预设的寻呼周期和偏移量，确定发送寻呼信息的寻呼时刻，所述寻呼周期是寻呼信息发送的周期，所述偏移量是寻呼周期内的帧号偏移值。Step 21: The eNB determines the paging moment for sending paging information according to a preset paging cycle and an offset, where the paging cycle is the cycle in which the paging information is sent, and the offset is within the paging cycle. Frame number offset value.

通过计算PF-start(PF，Paging Frame)和PF-length来获得寻呼消息所在的系统无线帧号SFN。换言之，寻呼时刻由PF-start和PF-length确定。UE通过如下公式得到在一个寻呼周期内开始发送寻呼信息的系统无线帧号SFN(PF-start帧)。The system radio frame number SFN where the paging message is located is obtained by calculating PF-start (PF, Paging Frame) and PF-length. In other words, the paging moment is determined by PF-start and PF-length. The UE obtains the system radio frame number SFN (PF-start frame) that starts to send paging information within one paging cycle through the following formula.

在时域上，所有UE的寻呼信息都在以相同的周期计算的相同起始时刻发送，并且发送的重复次数相同。寻呼信息发送时刻通过应用寻呼配置信元中包含的配置信息。UE在相应的寻呼时刻接收一个寻呼发送周期内eNode B发送的寻呼信息。In the time domain, the paging information of all UEs are sent at the same start time calculated with the same cycle, and the number of repetitions of the sending is the same. The paging information is sent by applying the configuration information contained in the paging configuration information element. The UE receives the paging information sent by the eNode B within one paging sending period at the corresponding paging moment.

在本步骤中，基站根据配置的寻呼周期和偏移量，可计算出所述发送寻呼信息的无线帧号，即可确定所述寻呼时刻，也就是说，所述寻呼时刻可与基站配置的寻呼周期和偏移量参数相关，且与IMSI无关。In this step, the base station can calculate the radio frame number for sending the paging information according to the configured paging cycle and offset, so as to determine the paging time, that is, the paging time can be It is related to the paging cycle and offset parameters configured by the base station, and has nothing to do with IMSI.

进一步地，若所述寻呼请求包括多个IMSI，也可采用寻呼周期和偏移量确定出所述寻呼时刻，针对不同IMSI，使用相同的寻呼周期和偏移量，可获得一个寻呼时刻，表示基站在相同的寻呼时刻，向不同的IMSI对应的UE发送寻呼信息。Further, if the paging request includes multiple IMSIs, the paging period and offset can also be used to determine the paging moment. For different IMSIs, using the same paging period and offset, one can be obtained. The paging moment means that the base station sends paging information to UEs corresponding to different IMSIs at the same paging moment.

步骤22、在所述寻呼时刻，eNB向预先确定的UE发送寻呼信息。Step 22: At the paging moment, the eNB sends paging information to a predetermined UE.

更进一步地，由于不同UE的寻呼信息的寻呼时刻是相同的，基站可实现在所述寻呼时刻，发送多个UE的寻呼信息，从而可节省资源开销。Furthermore, since the paging moments of the paging information of different UEs are the same, the base station can transmit the paging information of multiple UEs at the paging moment, thereby saving resource overhead.

通过寻呼周期和偏移量计算寻呼信息的寻呼时刻，不同UE的寻呼信息的寻呼时刻相同，可实现在相同寻呼时刻向多个UE发送寻呼信息，从而可节省资源开销。The paging time of the paging information is calculated by the paging period and the offset. The paging time of the paging information of different UEs is the same, and the paging information can be sent to multiple UEs at the same paging time, thereby saving the resource overhead. .

步骤23、eNB向所述UE发送寻呼配置信息，所述寻呼配置信息包括所述寻呼周期，以使UE根据所述寻呼周期和从本地存储的数据中获取的偏移量，确定所述寻呼时刻。Step 23: The eNB sends paging configuration information to the UE, where the paging configuration information includes the paging cycle, so that the UE determines the paging cycle according to the paging cycle and the offset obtained from the locally stored data. the paging time.

步骤23可发生在步骤21之前或之后，也可同时发生，本实施例不对步骤23的时序进行限定。Step 23 may occur before or afterstep 21 , or may occur simultaneously, and the timing of step 23 is not limited in this embodiment.

步骤24、eNB向所述UE发送寻呼配置信息，所述寻呼配置信息包括所述寻呼周期和偏移量，以使UE根据所述寻呼周期和偏移量，确定所述寻呼时刻。Step 24: The eNB sends paging configuration information to the UE, where the paging configuration information includes the paging cycle and offset, so that the UE determines the paging according to the paging cycle and offset time.

相应地，步骤24可发生在步骤21之前或之后，也可同时发生，本实施例不对步骤24的时序进行限定。Correspondingly, step 24 may occur before or afterstep 21 , or may occur simultaneously, and the timing of step 24 is not limited in this embodiment.

所述eNB向所述UE发送寻呼配置信息，具体为，The eNB sends paging configuration information to the UE, specifically:

eNB向所述UE发送系统信息，所述系统信息携带所述寻呼配置信息。The eNB sends system information to the UE, where the system information carries the paging configuration information.

在本实施例中，eNB向所述UE发送系统信息，在系统信息中包含所用UE共有的无线资源配置信息，在系统信息中携带寻呼配置信元。寻呼信息以一个可配置的周期内发送，其寻呼配置信元包含寻呼信息发送周期(pagingCycle)、发送重复次数(pagingNumRepetitions)和可选的发送帧号偏移量(offset-FrameNumber)。其中，寻呼信息的发送周期是指示给UE网络侧发送寻呼信息的寻呼周期参数。发送重复次数是指示在一个寻呼周期内寻呼信息重复发送的次数。发送帧号偏移量是指示寻呼信息在发送周期内的第几个无线帧上发送，缺省值为0。该偏移量为可选项，当寻呼信息中不携带该偏移量参数时，按照缺省值来配置参数值。eNode B通过在系统信息中携带寻呼配置信元，并在广播子带上广播给本小区的UE。UE在广播子带上接收系统信息中寻呼配置信元来获取寻呼发送的指示信息，即获知寻呼信息在网络侧发送的机会。In this embodiment, the eNB sends system information to the UE, the system information includes radio resource configuration information shared by the UEs used, and the system information carries a paging configuration information element. The paging information is sent in a configurable period, and the paging configuration information element includes the paging information sending cycle (pagingCycle), the number of sending repetitions (pagingNumRepetitions) and the optional sending frame number offset (offset-FrameNumber). The sending cycle of the paging information is a paging cycle parameter instructing the UE to send the paging information to the network side. The number of transmission repetitions indicates the number of times the paging information is repeatedly transmitted in one paging cycle. The sending frame number offset indicates the number of radio frames in which the paging information is sent within the sending period, and the default value is 0. The offset is optional. When the offset parameter is not carried in the paging information, the parameter value is configured according to the default value. The eNode B carries the paging configuration information element in the system information, and broadcasts it to the UE of the cell on the broadcast subband. The UE receives the paging configuration information element in the system information on the broadcast subband to obtain the indication information sent by the paging, that is, obtains the opportunity of sending the paging information on the network side.

具体地，该系统信息可以包含在主信息块(MIB)或系统信息块(SIB)中。并通过广播子带发送给UE。Specifically, the system information may be contained in a master information block (MIB) or a system information block (SIB). and sent to the UE through the broadcast subband.

下面给出确定寻呼时刻的方法。通过计算PF-start(PF，Paging Frame)和PF-length来获得寻呼消息所在的系统无线帧号SFN。换言之，寻呼时刻由PF-start和PF-length确定。UE通过如下公式得到在一个寻呼周期内开始发送寻呼信息的系统无线帧号SFN(PF-start帧)。The method for determining the paging moment is given below. The system radio frame number SFN where the paging message is located is obtained by calculating PF-start (PF, Paging Frame) and PF-length. In other words, the paging moment is determined by PF-start and PF-length. The UE obtains the system radio frame number SFN (PF-start frame) that starts to send paging information within one paging cycle through the following formula.

一个寻呼周期内寻呼信息发送时刻为[PF-start，PF-start+1,…,PF-start+PF-length-1]。其中，PF-start对应的是预设的起始寻呼时刻，从PF-start+1至PF-start+PF-length-1这些时刻对应的预设的再次寻呼时刻。由此，可以确定寻呼时刻的系统无线帧号SFN。The paging information sending time in one paging cycle is [PF-start, PF-start+1, . . . , PF-start+PF-length-1]. Wherein, PF-start corresponds to the preset paging start time, and the times from PF-start+1 to PF-start+PF-length-1 correspond to the preset re-paging time. Thereby, the system radio frame number SFN at the paging time can be determined.

在时域上，所有UE的寻呼信息都在以相同的周期计算的相同起始时刻发送，并且发送的重复次数相同。寻呼信息发送时刻通过应用寻呼配置信元中包含的配置信息。基站在寻呼发送周期内的第PF-start个无线帧到第PF-start+PF-length-1个无线帧上重复下发对UE的寻呼信息，UE在相应的寻呼时刻接收一个寻呼发送周期内eNode B发送的寻呼信息。In the time domain, the paging information of all UEs are sent at the same start time calculated with the same cycle, and the number of repetitions of the sending is the same. The paging information is sent by applying the configuration information contained in the paging configuration information element. The base station repeatedly delivers paging information to the UE from the PF-start radio frame to the PF-start+PF-length-1 radio frame in the paging transmission period, and the UE receives a paging message at the corresponding paging time. The paging information sent by the eNode B within the call sending period.

需要说明的是，由于230MHz频段电力网系统的单子带帧结构设计，下行传输使用无线帧的前13个OFDM符号，因此UE无需获知寻呼发送时刻的子帧号。具体地，该系统中一个无线帧的长度为25ms，其包含5个5ms的子帧，每子帧9个OFDM符号。其中根据该系统上下行业务的特征对上下行资源进行了规划。下行资源为子帧0的9个符号和子帧1的前4个符号，共13个符号。上行资源为子帧1的后4个符号和子帧2、子帧3、子帧4。It should be noted that, due to the single subband frame structure design of the power grid system in the 230MHz frequency band, the first 13 OFDM symbols of the radio frame are used for downlink transmission, so the UE does not need to know the subframe number at the time of paging transmission. Specifically, the length of one radio frame in the system is 25ms, which includes 5 subframes of 5ms, and each subframe has 9 OFDM symbols. The uplink and downlink resources are planned according to the characteristics of the uplink and downlink services of the system. The downlink resources are 9 symbols ofsubframe 0 and the first 4 symbols of subframe 1, a total of 13 symbols. The uplink resources are the last four symbols of subframe 1 andsubframe 2, subframe 3, andsubframe 4.

在频域上，考虑到支持单子带用户，eNode B将预寻呼用户的寻呼信息在该用户对应的监听子带上发送，以保证接收机受限的用户能够接收到寻呼信息。In the frequency domain, considering that a single subband user is supported, the eNode B sends the paging information of the pre-paging user on the monitoring subband corresponding to the user to ensure that users with limited receivers can receive the paging information.

对于接收寻呼信息而言，UE按照时频域上规定的原则，需要先获知寻呼配置信元，再按照寻呼配置信元计算出每个寻呼信息发送周期内发送寻呼信息的寻呼时刻，并在所述的时刻在UE自己所在的监听子带上接收寻呼信息。For receiving paging information, according to the principles specified in the time-frequency domain, the UE needs to first obtain the paging configuration information element, and then calculate the paging information sent in each paging information sending period according to the paging configuration information element. paging time, and receive paging information on the monitor subband where the UE itself is located at the said time.

通过向UE发送寻呼配置信息，使UE根据寻呼配置信息确定寻呼时刻，UE在寻呼时刻在自己所在的子带上接收寻呼信息，从而提高UE接收寻呼信息的可靠性。By sending the paging configuration information to the UE, the UE determines the paging time according to the paging configuration information, and the UE receives the paging information on the subband where it is located at the paging time, thereby improving the reliability of the UE receiving the paging information.

本发明实施例可应用于多种网络系统，为了更好的说明本实施例，在上述实施例的基础上，以应用于专网中为例进行说明。The embodiment of the present invention can be applied to various network systems. In order to better describe the embodiment, on the basis of the above embodiment, the application in a private network is taken as an example for description.

当核心网需向UE发送下行数据时，需先向eNB发送寻呼请求，所述寻呼请求包括至少一个第二标识。When the core network needs to send downlink data to the UE, it needs to send a paging request to the eNB first, and the paging request includes at least one second identifier.

具体地，核心网将通过MME经S1接口向基站发送寻呼请求，并在该寻呼请求中包含至少一个第二标识，用于标识待寻呼的UE。Specifically, the core network will send a paging request to the base station via the S1 interface through the MME, and the paging request includes at least one second identifier for identifying the UE to be paged.

可选地，所述第一标识可为唯一识别网络中的用户，例如IMSI。Optionally, the first identifier may uniquely identify the user in the network, such as IMSI.

eNB接收核心网网元发送的寻呼请求，所述寻呼请求包括至少一个第二标识；The eNB receives a paging request sent by the core network element, where the paging request includes at least one second identifier;

在预设的寻呼时刻，eNB通过物理下行控制信道向与第一标识对应的UE发送寻呼信息，所述寻呼信息包括至少一个第一标识，使所述UE在所述寻呼时刻，接收所述寻呼信息；At the preset paging moment, the eNB sends paging information to the UE corresponding to the first identifier through the physical downlink control channel, where the paging information includes at least one first identifier, so that the UE, at the paging moment, receiving the paging information;

其中，eNB侧维护UE的第一标识和该UE预先确定的子带的子带号，eNB根据核心网提供寻呼UE的第二标识来得到该UE的第一标识和该UE预先确定的子带的子带号。The eNB side maintains the first identifier of the UE and the subband number of the subband pre-determined by the UE, and the eNB obtains the first identifier of the UE and the sub-band pre-determined by the UE according to the second identifier of the paging UE provided by the core network. The subband number of the band.

在本步骤中，eNB侧维护UE预先确定的子带的子带号和UE的C-RNTI值。根据核心网提供寻呼UE的IMSI，找到该IMSI对应UE的C-RNTI和子带号。In this step, the eNB side maintains the subband number of the subband predetermined by the UE and the C-RNTI value of the UE. According to the IMSI of the paging UE provided by the core network, the C-RNTI and subband number of the UE corresponding to the IMSI are found.

在本步骤中，基站通过物理下行控制信道向UE发送寻呼信息，可不通过物理下行共享信道向UE发送寻呼信息。In this step, the base station sends the paging information to the UE through the physical downlink control channel, and may not send the paging information to the UE through the physical downlink shared channel.

其中，所述寻呼信息用于通知UE有下行数据到达。The paging information is used to notify the UE that downlink data arrives.

可以理解的是，基站通过物理下行控制信道向UE发送寻呼信息，因此可不通过物理下行控制信道向UE发送寻呼的授权调度信息，也可不通过物理下行共享信道向UE发送寻呼信息，基站仅占用一个信道资源，即可使UE获取寻呼信息。It can be understood that the base station sends paging information to the UE through the physical downlink control channel, so the paging authorization scheduling information may not be sent to the UE through the physical downlink control channel, or the paging information may not be sent to the UE through the physical downlink shared channel. Only one channel resource is occupied to enable the UE to obtain paging information.

相应地，UE通过物理下行控制信道接收寻呼信息，因此可不监听物理下行控制信道的寻呼的授权调度信息，也可不解析该授权调度信息，并不再接收物理下行共享信道的寻呼信息，UE仅监听物理下行控制信道，即可获取寻呼信息。Correspondingly, the UE receives paging information through the physical downlink control channel, so it may not monitor the paging authorization scheduling information of the physical downlink control channel, or may not parse the authorization scheduling information, and no longer receive the paging information of the physical downlink shared channel, The UE can obtain paging information only by monitoring the physical downlink control channel.

发送寻呼信息的方式可有多种，本实施例以其中一种为例说明。There are many ways to send paging information, and this embodiment takes one of them as an example for description.

所述方法具体包括：The method specifically includes:

在预设的起始寻呼时刻，eNB通过物理下行控制信道向与所述第一标识对应的UE发送寻呼信息；At the preset starting paging moment, the eNB sends paging information to the UE corresponding to the first identifier through the physical downlink control channel;

在预设的再次寻呼时刻，eNB通过物理下行控制信道向与所述第一标识对应的UE发送寻呼信息；At the preset re-paging moment, the eNB sends paging information to the UE corresponding to the first identifier through the physical downlink control channel;

其中，所述再次寻呼时刻与所述起始寻呼时刻处于同一寻呼周期内。Wherein, the re-paging moment and the initial paging moment are in the same paging cycle.

考虑到小区覆盖增强，基站在预设的起始寻呼时刻和预设的再次寻呼时刻发送寻呼信息。在UE监听物理下行控制信道没有成功解析出寻呼信息时，UE可在再次寻呼时刻继续监听物理下行控制信道，重复接收所述寻呼信息，来提升UE接收寻呼的成功率。Considering the enhancement of cell coverage, the base station sends paging information at a preset initial paging moment and a preset re-paging moment. When the UE monitors the physical downlink control channel and fails to successfully parse out the paging information, the UE may continue to monitor the physical downlink control channel at the time of paging again, and repeatedly receive the paging information to improve the success rate of the UE receiving paging.

在本步骤中，所述再次寻呼时刻与所述起始寻呼时刻处于同一寻呼周期内，使基站在一个寻呼周期内发送多次寻呼信息，在小区覆盖增强下提高UE接收寻呼信息的成功率。In this step, the re-paging time and the initial paging time are in the same paging cycle, so that the base station sends multiple paging information in one paging cycle, and the UE receives paging information under the enhanced cell coverage. The success rate of calling information.

通过在一个寻呼周期内发送多次寻呼信息，UE在一个寻呼周期内接收多次寻呼信息，使UE无需等下一个寻呼周期才能获取寻呼信息，可减小寻呼信息的接收延迟。By sending paging information multiple times in one paging cycle, the UE receives multiple paging information in one paging cycle, so that the UE does not need to wait for the next paging cycle to obtain the paging information, which can reduce the amount of paging information. Receive delay.

所述方法具体包括：The method specifically includes:

在预设的寻呼时刻，在预先确定的子带上，eNB通过物理下行控制信道向与所述第一标识对应的UE发送寻呼信息；At a preset paging moment, on a predetermined subband, the eNB sends paging information to the UE corresponding to the first identifier through a physical downlink control channel;

其中，所述预先确定的子带为eNB从本地存储中获取与所述UE对应的子带。Wherein, the predetermined subband is the subband corresponding to the UE obtained by the eNB from local storage.

对于UE支持单子带工作模式而言，承载在PDCCH的下行控制信息(DownlinkControl Information，DCI)必须在各个子带上独立发送，否则单子带UE因接收机带宽的限制而无法监听PDCCH。For the UE to support the single subband working mode, the downlink control information (Downlink Control Information, DCI) carried on the PDCCH must be sent independently on each subband, otherwise the single subband UE cannot monitor the PDCCH due to the limitation of the receiver bandwidth.

本实施例中，针对230MHz频段频率资源的特点、单子带UE工作模式的需求和覆盖的要求进行设计。In this embodiment, the design is made according to the characteristics of the frequency resources of the 230MHz frequency band, the requirements of the single-subband UE working mode, and the requirements of coverage.

具体地，基站维护UE的C-RNTI和该UE驻留子带的子带号。在接收到来自于MME的寻呼请求后，确定待寻呼UE和对应发送子带。根据待寻呼的UE所属的监听子带，来汇总成每个子带上待发送的寻呼信息，并在寻呼时刻在每个子带上发送对应的寻呼信息。Specifically, the base station maintains the C-RNTI of the UE and the subband number of the subband where the UE resides. After receiving the paging request from the MME, determine the UE to be paged and the corresponding transmission subband. According to the monitoring subband to which the UE to be paged belongs, the paging information to be sent on each subband is aggregated, and the corresponding paging information is sent on each subband at the paging moment.

需要说明的是，对于寻呼场景，监听子带为UE的驻留子带，即UE通过随机接入过程或网络侧的切换子带信令指示UE所驻留的子带。It should be noted that, for the paging scenario, the monitoring subband is the subband where the UE resides, that is, the UE indicates the subband where the UE resides through a random access procedure or switching subband signaling on the network side.

通过在频域上，考虑到支持单子带用户，基站将寻呼信息在UE对应的子带上发送，以保证接收机受限的UE能够接收到寻呼信息。In the frequency domain, considering that a single subband user is supported, the base station sends the paging information on the subband corresponding to the UE, so as to ensure that the UE with limited receivers can receive the paging information.

寻呼信息的格式可有多种，本实施例举例说明其中一种。There are many formats of paging information, and this embodiment illustrates one of them.

所述方法具体包括：The method specifically includes:

eNB在每一预先确定的子带上对该子带上的寻呼信息以预设的寻呼专用下行控制信息格式封装，并以寻呼标识P-RNTI对封装后的下行控制信息的校验信息位CRC进行加扰，得到各子带上相应的加扰封装的下行控制信息。The eNB encapsulates the paging information on each predetermined subband in the preset paging-specific downlink control information format, and uses the paging identifier P-RNTI to verify the encapsulated downlink control information The information bit CRC is scrambled to obtain downlink control information corresponding to scrambled encapsulation on each subband.

在本步骤中，设计了一种寻呼信息的发送格式，即采用固定传输格式和字段大小在寻呼专用下行控制信息中来发送。In this step, a sending format of paging information is designed, that is, a fixed transmission format and field size are used to send the paging-specific downlink control information.

具体地，物理下行控制信道可承载下行控制信息。基站在确定第一标识，即C-RNTI后，该寻呼信息的发送格式包含字段为各UE的C-RNTI。将寻呼信息以所述的寻呼专用下行控制信息的格式进行封装。Specifically, the physical downlink control channel can carry downlink control information. After the base station determines the first identifier, that is, the C-RNTI, the sending format of the paging information includes the field of the C-RNTI of each UE. The paging information is encapsulated in the format of the paging-specific downlink control information.

具体地，寻呼专用下行控制信息格式的长度可以是固定的，在固定的比特数包含用户的CRNTI域。Specifically, the length of the paging-specific downlink control information format may be fixed, and the fixed number of bits includes the CRNTI field of the user.

具体地，CRNTI域可包含多个C-RNTI，举例来说，可包含字段为寻呼用户1的C-RNTI、寻呼用户2的C-RNTI和寻呼用户3的C-RNTI，共21比特。其中每个寻呼用户的C-RNTI长度是7比特，指示寻呼用户的C-RNTI值。换言之，此种情况寻呼专用下行控制信息格式的长度为21比特，CRNTI域包含3个寻呼用户的C-RNTI值。当然，具体寻呼信息的格式和内容可根据实际情况调整，不以此为限。Specifically, the CRNTI field may include multiple C-RNTIs. For example, the fields may include the C-RNTI for paging user 1, the C-RNTI forpaging user 2, and the C-RNTI for paging user 3, a total of 21 bits. The C-RNTI length of each paging user is 7 bits, indicating the C-RNTI value of the paging user. In other words, in this case, the length of the paging-specific downlink control information format is 21 bits, and the CRNTI field contains the C-RNTI values of three paging users. Of course, the format and content of the specific paging information can be adjusted according to the actual situation, which is not limited thereto.

需要说明的是，在本实施例中对用户的RNTI进行压缩，例如，C-RNTI为7比特，基站通过子带号和C-RNTI值这两个值来联合标识用户。而寻呼P-RNTI的长度为16比特，其值是一个固定的数值。C-RNTI能够标识每个子带上用户的C-RNTI值，但并不能唯一地标识小区内所有用户，为此，发送寻呼信息所使用子带对应的子带号和该寻呼信息中包含的C-RNTI值联合起来标识要寻呼的用户。It should be noted that, in this embodiment, the RNTI of the user is compressed, for example, the C-RNTI is 7 bits, and the base station jointly identifies the user through the two values of the subband number and the C-RNTI value. The length of the paging P-RNTI is 16 bits, and its value is a fixed value. C-RNTI can identify the C-RNTI value of users on each subband, but it cannot uniquely identify all users in the cell. For this reason, the subband number corresponding to the subband used for sending paging information and the subband number contained in the paging information The C-RNTI values of the combined identify the user to be paged.

相应地，在预设的寻呼时刻，eNB通过物理下行控制信道向与所述第一标识对应的UE发送所述加扰封装的下行控制信息。Correspondingly, at the preset paging moment, the eNB sends the scrambled encapsulated downlink control information to the UE corresponding to the first identifier through a physical downlink control channel.

本实施例提出一种新的寻呼专用下行控制信息格式，基站和UE按照预先定义DCI格式或按照双方预先进行交互协商确定的格式内容进行传输。在预设的寻呼时刻，基站采用这个格式发送，UE也可在PDCCH盲检和解析这种寻呼专用下行控制信息格式。This embodiment proposes a new paging-specific downlink control information format, and the base station and the UE transmit according to a pre-defined DCI format or according to the format content determined by mutual negotiation between the two parties in advance. At the preset paging moment, the base station uses this format to send, and the UE can also blindly detect and parse this paging-specific downlink control information format on the PDCCH.

本实施例提供的寻呼处理方法，至少具有以下技术效果：The paging processing method provided by this embodiment has at least the following technical effects:

通过eNB通过物理下行控制信道向UE发送的寻呼专用下行控制信息，使得UE可快速解码获得寻呼信息。The paging-specific downlink control information sent by the eNB to the UE through the physical downlink control channel enables the UE to quickly decode and obtain the paging information.

为了更好的说明本实施例，在上述实施例的基础上，详述本发明实施例。In order to better describe this embodiment, the embodiment of the present invention is described in detail on the basis of the above-mentioned embodiment.

图4示出了本发明又一实施例提供的一种寻呼配置方法的信令交互示意图。FIG. 4 shows a schematic diagram of signaling interaction of a paging configuration method provided by another embodiment of the present invention.

参照图4，本实施例寻呼过程如下描述。Referring to FIG. 4 , the paging process of this embodiment is described as follows.

1、当核心网需要向UE发送下行数据时，将通过MME经S1接口向基站发送寻呼请求，并在该寻呼请求中包含用户ID(ue-Identity，即IMSI)和跟踪区域标识(TAI，TrackingArea Identity)列表等信息。1. When the core network needs to send downlink data to the UE, it will send a paging request to the base station via the S1 interface through the MME, and the paging request includes the user ID (ue-Identity, that is, IMSI) and the tracking area identifier (TAI) , TrackingArea Identity) list and other information.

具体地，核心网维护用户标识IMSI，通过IMSI来标识UE。Specifically, the core network maintains the user identity IMSI, and identifies the UE through the IMSI.

当需要向UE发送数据时，核心网将触发寻呼过程，将用户ID，即IMSI和TAI信息包含在寻呼请求中发送给基站。When data needs to be sent to the UE, the core network will trigger the paging process, and send the user ID, ie, IMSI and TAI information, to the base station in the paging request.

2、基站接收到该寻呼请求后，执行寻呼判决。2. After receiving the paging request, the base station executes the paging decision.

主要判决两方面：其一，确定待寻呼的UE和对应的发送子带。There are two main judgments: First, determine the UE to be paged and the corresponding transmission subband.

根据UE的TAI列表信息在TAI列表中的小区内按照预设的原则确定待寻呼的UE，并根据待寻呼的UE所属的监听子带，来汇总成每个子带上待发送的寻呼信息。According to the TAI list information of the UE, the UE to be paged is determined in the cell in the TAI list according to the preset principle, and the pages to be sent on each subband are aggregated according to the monitoring subband to which the UE to be paged belongs. information.

相应地，基站维护UE的C-RNTI和该UE驻留子带的子带号，并通过C-RNTI和子带号来联合标识UE，并与UE的IMSI相关联。Correspondingly, the base station maintains the C-RNTI of the UE and the subband number of the subband where the UE resides, and jointly identifies the UE through the C-RNTI and the subband number, and associates it with the IMSI of the UE.

此外，基站可通过C-RNTI来标识UE，并与UE的IMSI相关联。In addition, the base station can identify the UE through the C-RNTI and associate with the UE's IMSI.

在本发明中对于第一标识，其规定使用的长度和取值范围决定了第一标识是否可以成为小区内UE的唯一标识。第一标识的长度不同，其取值范围也是不同的，也是就说可唯一标识用户数目是不同的。同时，第一标识的长度决定寻呼信息中可包含的寻呼UE的数目。当第一标识规定的长度可以其作为小区内UE的唯一标识时，基站可使用第一标识来标识UE。当第一标识规定长度不能使其作为小区内UE的唯一标识时，基站可使用第一标识和子带号联合来标识UE，此时的第一标识是在一个子带上可以唯一地标识UE。在小区中要求用户容量相同的情况下，与子带号联合标识UE的第一标识的长度要比仅使用第一标识的长度短一些。由于第一标识长度短，其寻呼信息中可包含寻呼用户数目会多一些，但因这种情况下第一标识要和子带号联合标识，在复杂度上会稍高一点。在实际应用中，可以取决于系统中小区用户容量来考虑使用哪种方式标识小区中的UE。另外，无论采用哪种方式标识小区中的UE，基站都会记录和维护小区内UE和其对应的子带号，用于基站对UE进行调度。In the present invention, for the first identifier, the specified length and value range determine whether the first identifier can become the unique identifier of the UE in the cell. The length of the first identifier is different, and the value range thereof is also different, that is to say, the number of users that can be uniquely identified is different. Meanwhile, the length of the first identifier determines the number of paging UEs that can be included in the paging information. When the length specified by the first identifier can be used as the unique identifier of the UE in the cell, the base station can use the first identifier to identify the UE. When the specified length of the first identifier cannot be used as the unique identifier of the UE in the cell, the base station can use the first identifier and the subband number jointly to identify the UE, and the first identifier at this time can uniquely identify the UE on a subband. In the case that the required user capacity in the cell is the same, the length of the first identifier that identifies the UE jointly with the subband number is shorter than the length of using only the first identifier. Due to the short length of the first identifier, the paging information may contain a larger number of paging users, but in this case, the first identifier and the subband number need to be jointly identified, so the complexity will be slightly higher. In practical applications, which method to use to identify the UE in the cell may be considered depending on the user capacity of the cell in the system. In addition, no matter which method is used to identify the UE in the cell, the base station will record and maintain the UE in the cell and its corresponding subband number for the base station to schedule the UE.

举例说明，第一标识为C-RNTI时，基站定义C-RNTI的长度和使用C-RNTI范围决定了C-RNTI是否可以成为小区内UE的唯一标识。C-RNTI的定义长度不同，其取值范围是不同的，也是就说可唯一标识用户数目是不同的。同时，C-RNTI的长度决定寻呼信息中可包含的C-RNTI的数目。以C-RNTI长度分别为7比特和16比特为例，当C-RNTI为7比特时，其取值范围[0,127]，将C-RNTI和子带号来联合标识UE的RNTI值，如按照公式n_RNTI＝(subbandIndex+1)×2⁷+n_C-RNTI计算UE的小区唯一标识值，其中subbandIndex为UE所在子带号的索引值，n_C-RNTI为UE的C-RNTI值。而当C-RNTI为16比特时，其取值范围[0,65535]，可直接使用C-RNTI来标识小区内的UE。另外，当C-RNTI长度为7比特时，假设寻呼信息包括4个C-RNTI，寻呼专用DCI格式的长度为28比特。当C-RNTI长度为16比特时，假设寻呼信息包括2个C-RNTI，寻呼专用DCI格式的长度为32比特。For example, when the first identifier is a C-RNTI, the length of the C-RNTI defined by the base station and the range of using the C-RNTI determine whether the C-RNTI can become the unique identifier of the UE in the cell. The C-RNTI has different defined lengths and different value ranges, that is to say, the number of uniquely identifiable users is different. Meanwhile, the length of the C-RNTI determines the number of C-RNTIs that can be included in the paging information. Taking the C-RNTI length of 7 bits and 16 bits as an example, when the C-RNTI is 7 bits, its value range is [0, 127], and the C-RNTI and the subband number are used to jointly identify the RNTI value of the UE, as shown in the formula n_RNTI =(subbandIndex+1)×2⁷ +n_C-RNTI calculates the UE's cell unique identification value, where subbandIndex is the index value of the subband number where the UE is located, and n_C-RNTI is the C-RNTI value of the UE. When the C-RNTI is 16 bits, its value range is [0, 65535], and the C-RNTI can be directly used to identify the UE in the cell. In addition, when the C-RNTI length is 7 bits, it is assumed that the paging information includes 4 C-RNTIs, and the length of the paging-specific DCI format is 28 bits. When the length of the C-RNTI is 16 bits, it is assumed that the paging information includes 2 C-RNTIs, and the length of the paging-specific DCI format is 32 bits.

具体地操作如下：The specific operation is as follows:

首先，eNode B根据寻呼消息中UE的IMSI查找UE对应的C-RNTI和监听子带的子带号。First, the eNode B searches for the C-RNTI corresponding to the UE and the subband number of the monitoring subband according to the IMSI of the UE in the paging message.

然后，根据UE的TAI列表信息，在TAI列表中的小区内确定待寻呼的UE，待寻呼的UE应该满足以下条件a和b：Then, according to the TAI list information of the UE, the UE to be paged is determined in the cell in the TAI list, and the UE to be paged should meet the following conditions a and b:

a.待寻呼的UE在eNode B侧记录的当前状态为未激活状态。未激活状态表示UE支持DRX且UE的状态处于休眠状态，即不监听C-RNTI加扰的PDCCH。a. The current state recorded by the UE to be paged at the eNode B side is the inactive state. The inactive state indicates that the UE supports DRX and the state of the UE is in the dormant state, that is, the PDCCH scrambled by the C-RNTI is not monitored.

b.在寻呼时刻到来之前，需要寻呼的UE一直没有发送调度请求(SR)。b. Before the paging moment arrives, the UE that needs to be paged has not sent a Scheduling Request (SR).

需要说明的是，如果eNode B记录的待寻呼UE处于未激活状态，但是在寻呼时刻到达之前(即eNode B还没有发送待寻呼UE的寻呼信息)，eNodeB接收到待寻呼UE发送的SR，则eNode B将不发送该UE的寻呼信息，并更新该UE的状态为激活状态。It should be noted that if the UE to be paged recorded by the eNodeB is in an inactive state, but before the paging time arrives (that is, the eNodeB has not sent the paging information of the UE to be paged), the eNodeB receives the UE to be paged If the SR is sent, the eNode B will not send the paging information of the UE, and update the state of the UE to the active state.

最后，根据待寻呼UE的C-RNTI和监听子带的子带号，记录各个子带上待寻呼的UE。Finally, according to the C-RNTI of the UE to be paged and the subband number of the monitoring subband, the UE to be paged on each subband is recorded.

在频域上，考虑到支持单子带用户，预寻呼用户的寻呼信息将在该用户对应的监听子带上发送，以保证接收机受限的用户能够接收到寻呼信息。In the frequency domain, considering that a single subband user is supported, the paging information of the pre-paging user will be sent on the monitoring subband corresponding to the user to ensure that users with limited receivers can receive the paging information.

需要说明的是，监听子带是指UE监听PDCCH所在的子带。It should be noted that the monitoring subband refers to the subband where the UE monitors the PDCCH.

对于寻呼场景，监听子带为UE的驻留子带，即UE通过随机接入过程或网络侧的切换子带信令指示UE所驻留的子带。For a paging scenario, the monitoring subband is the subband where the UE resides, that is, the UE indicates the subband where the UE resides through a random access procedure or switching subband signaling on the network side.

其二，根据预设的寻呼周期和偏移量，确定发送寻呼信息的寻呼时刻。Second, according to the preset paging cycle and offset, determine the paging moment for sending the paging information.

基站确定寻呼时刻的方式与上述实施例中UE确定寻呼时刻的方式相同，本实施例不再赘述。The manner in which the base station determines the paging moment is the same as the manner in which the UE determines the paging moment in the foregoing embodiment, which is not repeated in this embodiment.

在时域上，所有UE的寻呼信息都在以相同的周期计算的相同起始时刻发送，并且发送的重复次数相同。寻呼信息寻呼时刻通过应用寻呼配置信元中包含的配置信息。基站在寻呼发送周期内的第PF-start个无线帧到第PF-start+PF-length-1个无线帧上重复下发对UE的寻呼信息，UE在相应的寻呼时刻接收一个寻呼发送周期内eNode B发送的寻呼信息。In the time domain, the paging information of all UEs are sent at the same start time calculated with the same cycle, and the number of repetitions of the sending is the same. Paging information The paging moment is by applying the configuration information contained in the paging configuration information element. The base station repeatedly delivers paging information to the UE from the PF-start radio frame to the PF-start+PF-length-1 radio frame in the paging transmission period, and the UE receives a paging message at the corresponding paging time. The paging information sent by the eNode B within the call sending period.

需要说明的是，由于230MHz频段电力网系统的单子带帧结构设计，下行传输使用无线帧的前13个OFDM符号，因此UE无需获知寻呼寻呼时刻的子帧号。具体地，该系统中一个无线帧的长度为25ms，其包含5个5ms的子帧，每子帧9个OFDM符号。其中根据该系统上下行业务的特征对上下行资源进行了规划。下行资源为子帧0的9个符号和子帧1的前4个符号，共13个符号。上行资源为子帧1的后4个符号和子帧2、子帧3、子帧4。It should be noted that, due to the single subband frame structure design of the 230MHz frequency band power grid system, the first 13 OFDM symbols of the radio frame are used for downlink transmission, so the UE does not need to know the subframe number at the paging moment. Specifically, the length of one radio frame in the system is 25ms, which includes 5 subframes of 5ms, and each subframe has 9 OFDM symbols. The uplink and downlink resources are planned according to the characteristics of the uplink and downlink services of the system. The downlink resources are 9 symbols ofsubframe 0 and the first 4 symbols of subframe 1, a total of 13 symbols. The uplink resources are the last four symbols of subframe 1 andsubframe 2, subframe 3, andsubframe 4.

可以理解的是，230MHz频段电力网系统采用TDD双工方式，上下行是同一工作频率，除了上下行资源的规划外，对于子帧1的第5个符号是保护间隔GP(Guard Period)，用于保护下行信号对上行信号的干扰。为了满足行业用户需求，制定了上述帧结构方式和数据传输机制，基站和UE在计算寻呼时刻时无需计算子帧，由此可降低计算复杂度，简化实现开发。It can be understood that the power grid system in the 230MHz frequency band adopts the TDD duplex mode, and the uplink and downlink are the same operating frequency. In addition to the planning of uplink and downlink resources, the fifth symbol of subframe 1 is the guard interval GP (Guard Period), used for Protect the interference of downstream signals to upstream signals. In order to meet the needs of industrial users, the above frame structure and data transmission mechanism are formulated, and the base station and UE do not need to calculate subframes when calculating the paging moment, which can reduce the computational complexity and simplify the implementation and development.

3、基站通过物理下行控制信道在各个子带上向UE发送下行控制信息。3. The base station sends downlink control information to the UE on each subband through the physical downlink control channel.

应当说明的是，在本步骤之前，基站根据预设的寻呼周期、偏移量和发送次数，以确定eNB发送寻呼信息的寻呼时刻，也就是寻呼信息何时发送及发送次数。It should be noted that, before this step, the base station determines the paging moment at which the eNB sends the paging information, that is, when the paging information is sent and the number of times, according to the preset paging cycle, offset and sending times.

在时域上，所有UE的寻呼信息都在以相同的周期计算的相同起始时刻发送，并且发送的重复次数相同。In the time domain, the paging information of all UEs are sent at the same start time calculated with the same cycle, and the number of repetitions of the sending is the same.

4、UE接收寻呼信息。4. The UE receives the paging information.

对于UE而言，UE需要先获知寻呼配置信元，再按照寻呼配置信元计算出每个寻呼信息发送周期内发送寻呼信息的寻呼时刻，并在这个时刻在UE自己所在的监听子带上接收寻呼信息。For the UE, the UE needs to know the paging configuration information element first, and then calculate the paging time at which the paging information is sent in each paging information transmission cycle according to the paging configuration information element, and at this time the paging information is sent in the location where the UE is located. Receive paging information on the monitor subband.

应当说明的是，在本步骤之前，基站向小区内的UE广播系统信息，系统信息中包括寻呼配置信息，所述寻呼配置信息包含所有UE共用的无线资源配置信息，具体为寻呼周期和偏移量，以确定寻呼信息何时发送及发送次数。It should be noted that, before this step, the base station broadcasts system information to UEs in the cell, and the system information includes paging configuration information. The paging configuration information includes radio resource configuration information shared by all UEs, specifically the paging cycle. and offset to determine when and how many times the paging message is sent.

寻呼配置信息包含寻呼周期、发送次数和偏移量。其中，寻呼信息的寻呼周期是指示给UE网络侧发送寻呼信息的寻呼周期参数。该偏移量为可选项，当寻呼信息中不携带该偏移量参数时，按照缺省值来配置参数值，举例来说，缺省值为0。The paging configuration information includes the paging cycle, transmission times and offset. Wherein, the paging cycle of the paging information is a paging cycle parameter instructing the UE to send the paging information to the network side. The offset is optional. When the offset parameter is not carried in the paging information, the parameter value is configured according to the default value, for example, the default value is 0.

基站通过在系统信息中携带寻呼配置信息，并在广播子带上广播给本小区的UE。UE在广播子带上接收系统信息中寻呼配置信息来获取寻呼发送的指示信息，即获知寻呼信息在网络侧发送的机会。The base station carries the paging configuration information in the system information, and broadcasts it to the UE of the cell on the broadcast subband. The UE receives the paging configuration information in the system information on the broadcast subband to obtain the indication information sent by the paging, that is, obtains the opportunity of sending the paging information on the network side.

接收到系统信息后，UE将应用系统信息包含的配置确定寻呼信息的寻呼时刻。UE按照与基站相同的原则，利用寻呼配置信息计算出每个寻呼信息发送周期内开始发送寻呼信息的起始寻呼时刻，以及再次发送的时刻，并，并在这些时刻接收寻呼信息。After receiving the system information, the UE will apply the configuration contained in the system information to determine the paging time of the paging information. According to the same principle as the base station, the UE uses the paging configuration information to calculate the initial paging time and the re-sending time in each paging information transmission cycle, and receives the paging at these times. information.

确定寻呼时刻的方法如前所述，本实施例不再赘述。The method for determining the paging time is as described above, which is not repeated in this embodiment.

UE在一个寻呼周期内各寻呼时刻尝试接收寻呼信息，并对接收到的寻呼信息进行解析。The UE attempts to receive paging information at each paging moment in a paging cycle, and parses the received paging information.

若UE成功地解析了该寻呼信息，则UE停止监听该寻呼周期内后续寻呼时刻(若在本次寻呼周期内在后续时刻还有寻呼时刻的情况下)，并且查看在该寻呼信息中是否有属于自己的寻呼，即寻呼信息中所述用户标识中是否包含自己的标识。若是，UE在网络侧为其配置PDCCH信道所在时刻监听PDCCH，来接收该UE下行数据，若否，则UE继续在下一个寻呼周期内的寻呼时刻监听寻呼信息。If the UE successfully parses the paging information, the UE stops monitoring the subsequent paging moments in the paging cycle (if there are paging moments in subsequent moments in this paging cycle), and checks the paging moments in the paging cycle. Whether there is own paging in the paging information, that is, whether the user identification in the paging information contains the own identification. If so, the UE monitors the PDCCH at the time when the network side configures the PDCCH channel for it to receive the downlink data of the UE; if not, the UE continues to monitor the paging information at the paging time in the next paging cycle.

本实施例提供的方法，至少具有以下技术效果：The method provided by this embodiment has at least the following technical effects:

通过利用寻呼周期和偏移量确定寻呼信息的寻呼时刻，不同终端的寻呼信息的寻呼时刻相同，可实现多个终端在相同寻呼时刻接收寻呼信息，且通过PDCCH来传输寻呼信息，可进一步节省资源开销。By using the paging cycle and the offset to determine the paging time of the paging information, the paging time of the paging information of different terminals is the same, so that multiple terminals can receive the paging information at the same paging time and transmit it through the PDCCH. Paging information can further save resource overhead.

最后应说明的是：以上实施例仅用以说明本发明实施例的技术方案，而非对其限制；尽管参照前述实施例对本发明实施例进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明实施例各实施例技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, but not to limit them; although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that : it is still possible to modify the technical solutions recorded in the foregoing embodiments, or to perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the techniques of the embodiments of the present invention. The spirit and scope of the programme.