CN101005691A - Soft switching method and terminal device - Google Patents

Abstract

Translated fromChinese

本发明提供多种软切换方法和终端设备，本发明通过在终端进行软切换过程中，使终端判断目标小区基站与原小区基站是否采用相同的HARQ方式，使终端能够在切换过程中，根据原小区基站和目标小区基站的具体情况采用不同的方式来成功实现软切换过程；本发明能够适用于不同的应用场景，如本发明能够适用于终端在软切换前能够获知原小区基站和目标小区基站的HARQ方式不同、且能够将原小区基站和目标小区基站的HARQ方式调整一致的情况、或者不能够将原小区基站和目标小区基站的HARQ方式调整一致的情况；还有本发明能够适用于终端在软切换前不能够获知原小区基站和目标小区基站的HARQ方式的情况；从而实现了提高软切换成功率的目的。

The present invention provides a variety of soft handover methods and terminal equipment. The present invention enables the terminal to judge whether the base station of the target cell and the base station of the original cell use the same HARQ mode during the soft handover process of the terminal, so that the terminal can switch according to the original The specific conditions of the base station of the cell and the base station of the target cell adopt different methods to successfully realize the soft handover process; The HARQ mode of the base station of the original cell and the base station of the target cell are different, and the HARQ mode of the base station of the original cell and the base station of the target cell can be adjusted to be the same, or the HARQ mode of the base station of the original cell and the base station of the target cell cannot be adjusted to be consistent; and the present invention can be applied to the terminal Before the soft handover, the situation of the HARQ mode of the base station of the original cell and the base station of the target cell cannot be known; thus, the purpose of improving the success rate of the soft handover is achieved.

Description

Translated fromChinese

软切换方法和终端设备Soft handover method and terminal equipment

技术领域technical field

本发明涉及网络通讯技术领域，具体涉及软切换方法和终端设备。The invention relates to the technical field of network communication, in particular to a soft handover method and terminal equipment.

背景技术Background technique

UMTS(Universal Mobile Telecommunications System，通用移动通信系统)是采用WCDMA(宽带码分多址)空中接口技术的第三代移动通信系统，UMTS主要在WCDMA/GSM全球标准化组织3GPP中发展。UMTS (Universal Mobile Telecommunications System) is a third-generation mobile communication system that adopts WCDMA (Wideband Code Division Multiple Access) air interface technology. UMTS is mainly developed in the WCDMA/GSM global standardization organization 3GPP.

随着第三代移动通信技术的发展，人们对移动通信的需求已不再满足于语音业务，由于第三代移动通信系统可以提供比第二代移动通信系统更高数据速率的服务，所以，大量的多媒体业务涌现出来，多媒体业务如视频电话、图片上载、高速浏览Internet网络等服务。为了增强上行容量、提高用户上行性能，在第三代移动通信系统中引入了增强上行的HSUPA(High Speed Uplink PacketAccess，高速上行包接入)。With the development of third-generation mobile communication technology, people's demand for mobile communication is no longer satisfied with voice services. Since the third-generation mobile communication system can provide services with higher data rates than the second-generation mobile communication system, therefore, A large number of multimedia services emerge, such as video telephony, picture uploading, high-speed Internet browsing and other services. In order to enhance the uplink capacity and improve the uplink performance of users, HSUPA (High Speed Uplink Packet Access, High Speed Uplink Packet Access) with enhanced uplink is introduced in the third generation mobile communication system.

HSUPA采用了三种主要技术，即HARQ(物理层混合重传)、基于Node B的快速调度和2msTTI(传输时间间隔)的短帧传输。HSUPA adopts three main technologies, namely HARQ (hybrid retransmission of physical layer), fast scheduling based on Node B and short frame transmission of 2msTTI (transmission time interval).

HARQ机制通过在每次重发信息中加入更多的冗余信息，有效提高了接收端正确解调的概率。UMTS系统中使用的HARQ分为Chase Combine(追踪合并)和Incremental Redundant Combination(增量冗余合并)两种合并方式，ChaseCombine合并时固定RV Index(冗余版本号)为0，Incremental RedundantCombination合并时RV Index会随着RSN(接收序列号)发生变化，RSN在初传时为0，在重传时加1。RV为冗余版本参数，RV是在控制速率匹配阶段过程中使用的参数。RV参数的定义如表1所示。The HARQ mechanism effectively improves the probability of correct demodulation at the receiving end by adding more redundant information to each retransmission message. The HARQ used in the UMTS system is divided into two combinations: Chase Combine (tracking combination) and Incremental Redundant Combination (incremental redundancy combination). When ChaseCombine is combined, the fixed RV Index (redundant version number) is 0, and when Incremental RedundantCombination is combined, RV The Index will change with the RSN (Received Sequence Number). The RSN is 0 in the initial transmission and increases by 1 in the retransmission. RV is a redundancy version parameter, and RV is a parameter used during the control rate matching phase. The definition of RV parameters is shown in Table 1.

表1Table 1

 E-DCH RV Index E-DCH RV Index  s s  r r  0 0  1 1  0 0  1 1  0 0  0 0  2 2  1 1  1 1  3 3  0 0  1 1

表1中，s参数用来选择是系统位优先还是校验位优先，如果s为1，表示系统位优先，速率匹配优先满足系统位，如果s为0，表示校验位优先，速率匹配优先满足校验位。r参数用来决定重复算法或打孔算法的bit起始位置。In Table 1, the s parameter is used to select whether the system bit is prioritized or the parity bit is prioritized. If s is 1, it means that the system bit is prioritized, and the rate matching first satisfies the system bit. If s is 0, it means that the parity bit is prioritized, and the rate matching is prioritized. The check digit is satisfied. The r parameter is used to determine the bit start position of the repetition algorithm or the punching algorithm.

UE可以同时和几个UTRAN(Universal Terrestril Radio Access Network，通用地面无线接入网路)的接入点连接，称为软切换。软切换功能包括激活集更新过程。激活集更新就是更新UE和UTRAN之间保持的通信链路激活集。激活集更新包括：在激活集中添加、改变或减少无线通信链路。UE can be connected to several UTRAN (Universal Terrestril Radio Access Network, universal terrestrial radio access network) access points at the same time, which is called soft handover. The soft handoff function includes an active set update procedure. The active set update is to update the active set of the communication link maintained between the UE and the UTRAN. The active set update includes: adding, changing or reducing wireless communication links in the active set.

根据HSUPA合并方式的不同，基站可以分为三种方式：chase only(只支持追踪冗余合并)、IR only(只支持增量冗余合并)和chase+IR(同时支持追踪合并和增量冗余合并)方式，这三种方式的基站即具有三种能力的基站。基站和终端采用的HARQ方式由RNC确定后，分别通知给基站和终端，从而使终端和基站可以采用同样的方式发送和接收信息。According to the different ways of combining HSUPA, base stations can be divided into three ways: chase only (only supports tracking redundancy combination), IR only (only supports incremental redundancy combination) and chase+IR (supports both tracking combination and incremental redundancy combination) Combined) mode, the base station of these three modes is the base station with three kinds of capabilities. After the HARQ mode used by the base station and the terminal is determined by the RNC, it is notified to the base station and the terminal respectively, so that the terminal and the base station can use the same method to send and receive information.

目前，UMTS系统中还没有明确规定RNC是否可以知道基站的HARQ能力。当终端在HSUPA中执行软切换时，目标小区基站的HARQ能力和原小区基站的HARQ能力可能完全不同，如目标小区的基站具有chase only能力，原小区基站具有IR only能力。这样，终端使用原小区的HARQ方式发射的上行信息无法在目标小区解调。At present, whether the RNC can know the HARQ capability of the base station has not been clearly stipulated in the UMTS system. When the terminal performs soft handover in HSUPA, the HARQ capability of the base station of the target cell may be completely different from the HARQ capability of the base station of the original cell. For example, the base station of the target cell has chase only capability, and the base station of the original cell has IR only capability. In this way, the uplink information transmitted by the terminal using the HARQ mode of the original cell cannot be demodulated in the target cell.

由于两个基站能力不同，终端使用原小区HARQ方式发射的上行信息无法在目标小区解调，这样，当终端只支持HSUPA业务、且在这两个小区间执行软切换时，无法在目标小区建立真正的HSUPA链路，无法成功进行软切换。Due to the different capabilities of the two base stations, the uplink information transmitted by the terminal using the HARQ method of the original cell cannot be demodulated in the target cell. In this way, when the terminal only supports HSUPA services and performs soft handover between the two cells, it cannot be established in the target cell. A real HSUPA link cannot perform soft handover successfully.

发明内容Contents of the invention

本发明的目的在于，提供多种软切换方法和终端设备，通过在终端进行软切换过程中，判断目标小区基站与原小区基站是否采用相同的HARQ方式，使终端能够在切换过程中，根据具体情况采用不同的方式成功实现软切换，从而提高了软切换的成功率。The purpose of the present invention is to provide a variety of soft handover methods and terminal equipment. By judging whether the base station of the target cell and the base station of the original cell use the same HARQ mode during the soft handover process of the terminal, the terminal can switch according to the specific HARQ mode during the handover process. Depending on the situation, different methods are used to successfully implement soft handover, thereby improving the success rate of soft handover.

为达到上述目的，本发明提供多种软切换方法，方法一包括：In order to achieve the above object, the present invention provides multiple soft handover methods, method one includes:

a、终端在确定目标小区基站与原小区基站采用不相同的HARQ方式时，将目标小区基站和原小区基站的HARQ方式调整为相同的HARQ方式；a. When the terminal determines that the base station of the target cell and the base station of the original cell adopt different HARQ modes, it adjusts the HARQ mode of the base station of the target cell and the base station of the original cell to the same HARQ mode;

b、终端根据调整后的HARQ方式进行软切换。b. The terminal performs soft handover according to the adjusted HARQ mode.

终端根据RNC通知的基站的HARQ方式来确定目标小区基站与原小区基站是否采用不相同的HARQ方式。The terminal determines whether the target cell base station and the original cell base station use different HARQ modes according to the HARQ mode of the base station notified by the RNC.

所述步骤a中将目标小区基站和原小区基站的HARQ方式调整为相同的HARQ方式的步骤包括：The step of adjusting the HARQ mode of the base station of the target cell and the base station of the original cell to the same HARQ mode in the step a includes:

将原小区基站的HARQ方式调整为目标小区基站的HARQ方式；或Adjusting the HARQ mode of the base station of the original cell to the HARQ mode of the base station of the target cell; or

将目标小区基站的HARQ方式调整为原小区基站的HARQ方式。The HARQ mode of the base station of the target cell is adjusted to the HARQ mode of the base station of the original cell.

软切换方法二，包括：Soft handover method two, including:

终端在确定目标小区基站与原小区基站采用不相同的HARQ方式时，在软切换过程中，从预定时间点开始采用目标小区基站的HARQ方式发射上行信息。When the terminal determines that the base station of the target cell and the base station of the original cell use different HARQ modes, in the process of soft handover, the terminal uses the HARQ mode of the base station of the target cell to transmit uplink information from a predetermined time point.

方法二中，终端根据RNC通知的基站的HARQ方式来确定目标小区基站与原小区基站是否采用不相同的HARQ方式。In the second method, the terminal determines whether the target cell base station and the original cell base station use different HARQ modes according to the HARQ mode of the base station notified by the RNC.

所述预定时间点为：激活集更新延迟时间结束前且在一个TTI的开始时间点。The predetermined time point is: before the end of the active set update delay time and at the start time point of a TTI.

从预定时间点开始采用目标小区基站的HARQ方式发射上行信息的步骤包括：The step of using the HARQ method of the base station of the target cell to transmit the uplink information from the predetermined time point includes:

在预定时间点之前采用原小区基站的HARQ方式发射上行信息，从预定时间点开始采用目标小区基站的HARQ方式发射上行信息。Before the predetermined time point, the HARQ mode of the original cell base station is used to transmit the uplink information, and from the predetermined time point, the HARQ mode of the target cell base station is used to transmit the uplink information.

软切换方法三，包括：Soft handover method three, including:

终端在确定目标小区基站与原小区基站采用不相同的HARQ方式时，在软切换过程中，不删除其和原小区的链路连接。When the terminal determines that the base station of the target cell and the base station of the original cell use different HARQ modes, it does not delete its link connection with the original cell during the soft handover process.

所述方法三中，终端确定目标小区基站与原小区基站采用不相同的HARQ方式的步骤包括：In the third method, the terminal determines that the base station of the target cell and the base station of the original cell adopt different HARQ methods, including:

终端采用原小区基站的HARQ方式发射上行信息后，没有接收到目标小区的反馈信息或接收到错误的反馈信息时，确定目标小区基站与原小区基站采用不相同的HARQ方式。After the terminal uses the HARQ method of the base station of the original cell to transmit uplink information, and does not receive the feedback information of the target cell or receives wrong feedback information, it determines that the base station of the target cell uses a different HARQ method from the base station of the original cell.

方法三还包括：Method 3 also includes:

终端不向网络侧发送激活集更新完成信息；或The terminal does not send activation set update completion information to the network side; or

终端向网络侧发送激活集更新失败的信息。The terminal sends information that the activation set update fails to the network side.

软切换方法四，包括：Soft handover method four, including:

终端采用原小区基站的HARQ方式发射上行信息后，没有接收到目标小区的反馈信息或接收到错误的反馈信息或无法获知RNC下发的目标小区基站的HARQ方式时，在软切换过程中，不删除其和原小区的链路连接。After the terminal uses the HARQ method of the base station of the original cell to transmit uplink information, if it does not receive the feedback information of the target cell or receives the wrong feedback information or cannot know the HARQ method of the base station of the target cell issued by the RNC, during the soft handover process, no Delete its link connection with the original cell.

方法四还包括：Method 4 also includes:

终端不向网络侧发送激活集更新完成信息；或The terminal does not send activation set update completion information to the network side; or

终端向网络侧发送激活集更新失败的信息。The terminal sends information that the activation set update fails to the network side.

本发明还提供多种终端设备，第一种终端设备，包括：The present invention also provides a variety of terminal devices, the first terminal device includes:

判断模块一用于在确定目标小区基站与原小区基站采用不相同的HARQ方式时，通知软切换模块一；Judgment module 1 is used to notify soft handover module 1 when it is determined that the base station of the target cell and the base station of the original cell use different HARQ modes;

软切换模块一用于在接收到判断模块一的通知后，将目标小区基站和原小区基站的HARQ方式调整为相同的HARQ方式，并根据调整后的HARQ方式进行软切换。The soft handover module 1 is used to adjust the HARQ mode of the target cell base station and the original cell base station to the same HARQ mode after receiving the notification from the judgment module 1, and perform soft handover according to the adjusted HARQ mode.

第二种终端设备，包括：The second type of terminal equipment, including:

判断模块二用于在确定目标小区基站与原小区基站采用不相同的HARQ方式时，通知软切换模块二；The judgment module 2 is used to notify the soft handover module 2 when it is determined that the base station of the target cell and the base station of the original cell adopt different HARQ modes;

软切换模块二用于在接收到判断模块二的通知后，在软切换过程中，从预定时间点开始采用目标小区基站的HARQ方式发射上行信息。The soft handover module 2 is used for transmitting uplink information by using the HARQ method of the base station of the target cell in the soft handover process after receiving the notification from the judging module 2 .

第三种终端设备，包括：The third type of terminal equipment, including:

判断模块三用于在确定目标小区基站与原小区基站采用不相同的HARQ方式时，通知软切换模块三；The judging module three is used to notify the soft handover module three when it is determined that the base station of the target cell and the base station of the original cell use different HARQ methods;

软切换模块三用于在接收到判断模块三的通知后，在软切换过程中，不删除其和原小区的链路连接。The soft handover module 3 is used to not delete the link connection with the original cell during the soft handover process after receiving the notification from the judgment module 3 .

第四种终端设备，包括：The fourth type of terminal equipment includes:

判断模块四用于在终端设备采用原小区基站的HARQ方式发射上行信息，且没有接收到目标小区的反馈信息或接收到错误的反馈信息或无法获知RNC下发的目标小区基站的HARQ方式时，通知软切换模块四；Judgment module 4 is used to transmit uplink information using the HARQ method of the base station of the original cell when the terminal equipment does not receive feedback information from the target cell or receives wrong feedback information or cannot know the HARQ method of the base station of the target cell issued by the RNC, Notify the soft handoff module 4;

软切换模块四用于在接收到判断模块四的通知后，在软切换过程中，不删除其和原小区的链路连接。The soft handover module 4 is used to not delete the link connection with the original cell during the soft handover process after receiving the notification from the judgment module 4 .

通过上述技术方案的描述可知，本发明通过在终端进行软切换过程中，使终端判断目标小区基站与原小区基站是否采用相同的HARQ方式，使终端能够在切换过程中，根据原小区基站和目标小区基站的具体情况采用不同的方式来成功实现软切换过程；本发明提供了多种实现软切换的方法，能够适用于不同的应用场景，如本发明能够适用于终端在软切换前能够获知原小区基站和目标小区基站的HARQ方式不同、且能够将原小区基站和目标小区基站的HARQ方式调整一致的情况；再如本发明能够适用于终端在软切换前能够获知原小区基站和目标小区基站的HARQ方式不同、且不能够将原小区基站和目标小区基站的HARQ方式调整一致的情况；还有本发明能够适用于终端在软切换前不能够获知原小区基站和目标小区基站的HARQ方式的情况；从而通过本发明提供的技术方案实现了提高软切换成功率的目的。It can be seen from the description of the above technical solution that the present invention enables the terminal to judge whether the base station of the target cell and the base station of the original cell use the same HARQ mode during the soft handover process of the terminal, so that the terminal can use the same HARQ mode according to the base station of the original cell and the target cell during the handover process. The specific situation of the cell base station adopts different methods to successfully realize the soft handover process; the present invention provides a variety of methods for realizing soft handover, which can be applied to different application scenarios, such as the present invention can be applicable to the terminal can know the original handover before soft handover The HARQ mode of the base station of the cell and the base station of the target cell are different, and the HARQ mode of the base station of the original cell and the base station of the target cell can be adjusted to be the same; for another example, the present invention can be applied to the case where the terminal can know the base station of the original cell and the base station of the target cell before soft handover The HARQ mode of the base station of the original cell and the base station of the target cell cannot be adjusted in the same way; and the present invention can be applied to the situation where the terminal cannot know the HARQ mode of the base station of the original cell and the base station of the target cell before soft handover situation; thus the purpose of improving the success rate of soft handover is achieved through the technical solution provided by the present invention.

附图说明Description of drawings

图1是本发明的软切换方法流程图。Fig. 1 is a flow chart of the soft handover method of the present invention.

具体实施方式Detailed ways

本发明提供了多种软切换方法，能够适用于不同的应用场景，有效避免了现有技术中的软切换失败的现象，提高了软切换的成功率。The present invention provides a variety of soft handover methods, which can be applied to different application scenarios, effectively avoid the phenomenon of soft handover failure in the prior art, and improve the success rate of soft handover.

下面对本发明提供的多种不同方式的软切换实现方法分别进行说明。The methods for implementing soft handover in different ways provided by the present invention will be described respectively below.

方法一、将目标小区基站的HARQ方式和原小区基站的HARQ方式调整为相同的HARQ方式。Method 1: Adjust the HARQ mode of the base station of the target cell and the HARQ mode of the base station of the original cell to the same HARQ mode.

首先，终端在执行软切换前，确定目标小区基站的HARQ方式不同于当前小区基站的HARQ方式，如目标小区基站的HARQ方式为chase only，当前小区基站的HARQ方式为IR only。这里，终端可以根据RNC下发的目标小区基站的HARQ方式和目标小区基站的HARQ方式的信息来确定目标小区基站的HARQ方式是否不同于当前小区基站的HARQ方式。First, before performing soft handover, the terminal determines that the HARQ mode of the target cell base station is different from the HARQ mode of the current cell base station, for example, the HARQ mode of the target cell base station is chase only, and the HARQ mode of the current cell base station is IR only. Here, the terminal may determine whether the HARQ mode of the base station of the target cell is different from the HARQ mode of the base station of the current cell according to the HARQ mode of the base station of the target cell and the information of the HARQ mode of the base station of the target cell issued by the RNC.

设定目标小区基站的HARQ方式能够调整，此时，可以将目标小区基站的HARQ方式调整为原小区基站的HARQ方式，在调整后，终端更新激活集，终端可以采用现有的软切换行为更新激活集，然后，终端采用原小区基站的HARQ方式分别向原小区基站和目标小区基站发射上行信号。It is set that the HARQ mode of the base station of the target cell can be adjusted. At this time, the HARQ mode of the base station of the target cell can be adjusted to the HARQ mode of the base station of the original cell. After the adjustment, the terminal updates the active set, and the terminal can use the existing soft handover behavior to update The active set, and then, the terminal uses the HARQ method of the base station of the original cell to transmit uplink signals to the base station of the original cell and the base station of the target cell respectively.

设定原小区基站的HARQ方式能够调整，此时，可以将原小区基站的HARQ方式调整为目标小区基站的HARQ方式，在调整后，终端更新激活集，终端可以采用现有的软切换行为更新激活集，然后，终端采用目标小区基站的HARQ方式分别向原小区基站和目标小区基站发射上行信号。It is set that the HARQ method of the base station of the original cell can be adjusted. At this time, the HARQ method of the base station of the original cell can be adjusted to the HARQ method of the base station of the target cell. After the adjustment, the terminal updates the active set, and the terminal can use the existing soft handover behavior to update The active set, and then, the terminal uses the HARQ method of the base station of the target cell to transmit uplink signals to the base station of the original cell and the base station of the target cell respectively.

当然，本发明也可以将原小区基站的HARQ方式和目标小区基站的HARQ方式调整为第三种HARQ方式，在此不再详细描述。Of course, the present invention can also adjust the HARQ mode of the base station of the original cell and the HARQ mode of the base station of the target cell to the third HARQ mode, which will not be described in detail here.

方法一适用于终端在执行软切换前能够获知原小区基站和目标小区基站的HARQ方式、且原小区基站和目标小区基站的HARQ方式能够被调整为一致的情况。Method 1 is applicable to the situation where the terminal can know the HARQ modes of the base station of the original cell and the base station of the target cell before performing soft handover, and the HARQ modes of the base station of the original cell and the base station of the target cell can be adjusted to be consistent.

方法二、从预定时间点开始采用目标小区基站的HARQ方式发射上行信息。Method 2: Starting from a predetermined time point, the HARQ mode of the base station of the target cell is used to transmit the uplink information.

本发明的终端在软切换过程中，可以以预定时间点为界限采用不同的HARQ方式向目标小区基站、原小区基站发射上行信息，即在预定时间点的上一个时刻采用原小区基站的HARQ方式，向原小区基站发射上行信号；在预定时间点的下一个时刻采用目标小区基站的HARQ方式，向目标小区基站发射上行信号。During the soft handover process, the terminal of the present invention can use different HARQ methods to transmit uplink information to the base station of the target cell and the base station of the original cell based on the predetermined time point, that is, the HARQ method of the base station of the original cell can be used at the previous moment of the predetermined time point , to transmit an uplink signal to the base station of the original cell; to transmit an uplink signal to the base station of the target cell by using the HARQ mode of the base station of the target cell at the next moment of the predetermined time point.

这里的预定时间点可以为：最迟在激活集更新延迟时间结束前、且是一个TTI的开始时间点。The predetermined time point here may be: at the latest before the end of the active set update delay time and is the start time point of one TTI.

方法二适用于终端在执行软切换前能够获知原小区基站和目标小区基站的HARQ方式、且原小区基站和目标小区基站的HARQ方式不能够被调整为一致的情况。The second method is applicable to the situation where the terminal can know the HARQ modes of the base station of the original cell and the base station of the target cell before performing soft handover, and the HARQ modes of the base station of the original cell and the base station of the target cell cannot be adjusted to be consistent.

方法三、在软切换过程中，终端认为目标小区没有成功添加到激活集中，不删除其和原小区的链路连接。Method 3: During the soft handover process, the terminal considers that the target cell has not been successfully added to the active set, and does not delete the link connection with the original cell.

终端在更新激活集后，当终端采用原小区基站的HARQ方式向目标小区基站持续发射预定时间间隔的上行信息后，如果终端一直不能够接收到目标小区基站的反馈信息，或者终端接收到目标小区基站反馈的信息，但是，反馈的信息不正确时，则认为目标小区没有成功添加到激活集中，即认为原小区基站的HARQ方式和目标小区基站的HARQ方式不一致，此时，终端不删除其和原小区的链路连接；如果终端能够接收到目标小区基站的反馈信息、且反馈信息正确时，说明原小区基站的HARQ方式和目标小区基站的HARQ方式一致，终端认为目标小区已经成功添加到激活集中。After the terminal updates the active set, when the terminal uses the HARQ method of the original cell base station to continuously transmit the uplink information of the target cell base station to the target cell base station, if the terminal cannot receive the feedback information from the target cell base station all the time, or the terminal receives the target cell However, if the feedback information is incorrect, it is considered that the target cell has not been successfully added to the active set, that is, it is considered that the HARQ mode of the base station of the original cell is inconsistent with the HARQ mode of the base station of the target cell. At this time, the terminal does not delete its and The link connection of the original cell; if the terminal can receive the feedback information from the base station of the target cell and the feedback information is correct, it means that the HARQ mode of the base station of the original cell is consistent with the HARQ mode of the base station of the target cell, and the terminal believes that the target cell has been successfully added to the activation concentrated.

在方法三中，终端可以采用现有的软切换的行为更新激活集，而且，终端在认为目标小区没有成功添加到激活集中时，可以不向网络侧反馈激活集更新完成信息，如果终端已经向网络侧反馈了激活集更新完成信息，终端还可以向网络侧反馈激活集更新失败信息。In method 3, the terminal can update the active set by using the existing soft handover behavior, and when the terminal thinks that the target cell has not been successfully added to the active set, it does not need to feed back the active set update completion information to the network side. The network side feeds back the active set update completion information, and the terminal may also feed back the active set update failure information to the network side.

当终端采用2ms TTI时，上述持续发射的预定时间间隔最长为8个TTI，当终端采用10ms TTI时，预定时间间隔最长为4个TTI。When the terminal adopts 2ms TTI, the predetermined time interval of the above continuous transmission is up to 8 TTIs, and when the terminal adopts 10ms TTI, the predetermined time interval is up to 4 TTIs.

在方法三中，终端也可以向目标小区基站发射上行信息，但是，不是持续发射预定时间间隔的上行信息。In method three, the terminal may also transmit uplink information to the base station of the target cell, but does not continuously transmit uplink information at predetermined time intervals.

在方法三中，终端在按照现有的软切换行为更新激活集后，如果终端无法获知目标小区对其发送的上行信号的反馈信息、或者接收到目标小区基站反馈的错误的反馈信息、或者无法获知网络侧在其切换过程中下发的目标小区的HARQ方式时，则在软切换过程中保留其和原小区基站的链路连接。此时，该方法转换为方法四。在方法四和方法四中，终端可以不向网络侧反馈激活集更新完成信息，如果终端已经向网络侧反馈了激活集更新完成信息，终端还可以向网络侧反馈激活集更新失败信息。In the third method, after the terminal updates the active set according to the existing soft handover behavior, if the terminal cannot know the feedback information of the uplink signal sent by the target cell, or receives wrong feedback information fed back by the base station of the target cell, or cannot When knowing the HARQ mode of the target cell issued by the network side during the handover process, the link connection with the base station of the original cell is reserved during the soft handover process. At this point, the method is converted to method four. In method 4 and method 4, the terminal may not feed back active set update completion information to the network side. If the terminal has fed back active set update completion information to the network side, the terminal may also feed back active set update failure information to the network side.

方法三和方法四主要适用于终端在执行软切换前不能够获知原小区基站和目标小区基站的HARQ方式的情况。Method 3 and method 4 are mainly applicable to the situation that the terminal cannot know the HARQ mode of the base station of the original cell and the base station of the target cell before performing the soft handover.

上述是针对四种具体方法的分别描述，上述四种方法均可以在终端中单独应用。上述四种方法也可以在终端中组合应用。组合应用的实现过程如附图1所示。The foregoing is a separate description for four specific methods, and each of the above four methods can be independently applied in the terminal. The above four methods can also be applied in combination in the terminal. The implementation process of the combined application is shown in Figure 1.

图1中，在步骤100、终端支持HSUPA业务，触发软切换过程。In Fig. 1, instep 100, the terminal supports the HSUPA service and triggers a soft handover process.

到步骤110、终端判断是否已获知目标小区基站的HARQ方式和原小区基站的HARQ方式，如果已获知目标小区基站的HARQ方式和原小区基站的HARQ方式，到步骤120，终端继续判断目标小区基站、原小区基站的HARQ方式是否相同，如果相同，到步骤121，本发明的软切换方法结束。Go to step 110, the terminal judges whether the HARQ mode of the base station of the target cell and the HARQ mode of the base station of the original cell have been known, and if the HARQ mode of the base station of the target cell and the HARQ mode of the base station of the original cell have been known, go to step 120, and the terminal continues to judge the base station of the target cell . Whether the HARQ mode of the base station of the original cell is the same, if they are the same, go to step 121, and the soft handover method of the present invention ends.

在步骤120，如果终端确定目标小区基站、原小区基站的HARQ方式不相同，到步骤130，终端继续判断目标小区基站、原小区基站的HARQ方式是否能够调整为一致，如果能够调整一致，到步骤140，将目标小区基站、原小区基站的HARQ方式调整为一致，终端采用调整后的HARQ方式同时向原小区基站和目标小区基站发射上行信号，本发明的软切换方法结束。Instep 120, if the terminal determines that the HARQ modes of the target cell base station and the original cell base station are different, go to step 130, and the terminal continues to judge whether the HARQ modes of the target cell base station and the original cell base station can be adjusted to be consistent, and if they can be adjusted to be consistent, go to step 130. 140. Adjust the HARQ modes of the target cell base station and the original cell base station to be consistent, and the terminal uses the adjusted HARQ mode to simultaneously transmit uplink signals to the original cell base station and the target cell base station, and the soft handover method of the present invention ends.

在步骤130，如果目标小区基站、原小区基站的HARQ方式不能够调整为一致，到步骤150，终端在预定时间点的上一个时刻采用原小区基站的HARQ方式，向原小区基站发射上行信号；在预定时间点的下一个时刻采用目标小区基站的HARQ方式，向目标小区基站发射上行信号，本发明的软切换方法结束。Instep 130, if the HARQ mode of the base station of the target cell and the base station of the original cell cannot be adjusted to be consistent, atstep 150, the terminal adopts the HARQ mode of the base station of the original cell at the previous moment of the predetermined time point, and transmits an uplink signal to the base station of the original cell; At the next moment of the predetermined time point, the HARQ mode of the base station of the target cell is adopted to transmit an uplink signal to the base station of the target cell, and the soft handover method of the present invention ends.

在步骤110、如果终端不能够获知目标小区基站的HARQ方式和原小区基站的HARQ方式，到步骤160，终端采用原小区基站的HARQ方式向目标小区基站持续发射预定时间间隔的上行信息。Instep 110, if the terminal cannot know the HARQ mode of the target cell base station and the HARQ mode of the original cell base station, to step 160, the terminal uses the HARQ mode of the original cell base station to continuously transmit uplink information for a predetermined time interval to the target cell base station.

到步骤170，终端判断是否接收到目标小区基站的反馈信息、且该反馈信息是否正确，如果终端一直不能够接收到目标小区基站的反馈信息，或者虽然接收到目标小区基站的反馈信息，但是，反馈的信息不正确，则到步骤180，终端认为目标小区没有成功添加到激活集中，此时，终端不删除其和原小区的链路连接。Going to step 170, the terminal judges whether it has received the feedback information from the base station of the target cell and whether the feedback information is correct. If the terminal has not been able to receive the feedback information from the base station of the target cell, or although it has received the feedback information from the base station of the target cell, If the fed back information is incorrect, go to step 180, the terminal considers that the target cell has not been successfully added to the active set, and at this time, the terminal does not delete its link connection with the original cell.

在步骤170，如果终端能够接收到目标小区基站的反馈信息、且反馈信息正确，到步骤190，终端认为原小区基站的HARQ方式和目标小区基站的HARQ方式一致，而且，目标小区已经成功添加到激活集中，终端可以删除其和原小区基站的链路连接，本发明的软切换方法结束。Instep 170, if the terminal can receive the feedback information from the base station of the target cell and the feedback information is correct, instep 190, the terminal considers that the HARQ mode of the base station of the original cell is consistent with the HARQ mode of the base station of the target cell, and that the target cell has been successfully added to In active concentration, the terminal can delete its link connection with the base station of the original cell, and the soft handover method of the present invention ends.

本发明还提供能够实现上述多种软切换方法的终端设备。下面对分别实现不同软切换方法的多种终端终端设备进行说明。The present invention also provides terminal equipment capable of implementing the above-mentioned multiple soft handover methods. Various types of terminal equipment respectively implementing different soft handover methods will be described below.

第一种终端设备具有：判断模块一和软切换模块一。The first type of terminal equipment has: a judging module 1 and a soft handover module 1.

判断模块一的主要用于在确定目标小区基站与原小区基站采用不相同的HARQ方式时，通知软切换模块一。判断模块一可以根据RNC通知的基站的HARQ方式来确定目标小区基站与原小区基站是否采用不相同的HARQ方式，具体如上述方法中的描述。The judging module 1 is mainly used for notifying the soft handover module 1 when it is determined that the base station of the target cell and the base station of the original cell adopt different HARQ modes. Judgment module 1 can determine whether the target cell base station and the original cell base station adopt different HARQ modes according to the HARQ mode of the base station notified by the RNC, specifically as described in the above method.

软切换模块一的主要用于在接收到判断模块一的通知后，将目标小区基站和原小区基站的HARQ方式调整为相同的HARQ方式，并根据调整后的HARQ方式进行软切换。软切换模块一可以将原小区基站的HARQ方式调整为目标小区基站的HARQ方式，软切换模块一也可以将目标小区基站的HARQ方式调整为原小区基站的HARQ方式。具体如上述方法中的描述。The soft handover module 1 is mainly used to adjust the HARQ mode of the target cell base station and the original cell base station to the same HARQ mode after receiving the notification from the judgment module 1, and perform soft handover according to the adjusted HARQ mode. The soft handover module 1 can adjust the HARQ mode of the base station of the original cell to the HARQ mode of the base station of the target cell, and the soft handover module 1 can also adjust the HARQ mode of the base station of the target cell to the HARQ mode of the base station of the original cell. Specifically as described in the above method.

第二种终端设备具有：判断模块二和软切换模块二。The second type of terminal equipment has: a judging module 2 and a soft handover module 2.

判断模块二的主要用于在确定目标小区基站与原小区基站采用不相同的HARQ方式时，通知软切换模块二。判断模块二同样可以根据RNC通知的基站的HARQ方式来确定目标小区基站与原小区基站是否采用不相同的HARQ方式，具体如上述方法中的描述。The judging module 2 is mainly used to notify the soft handover module 2 when it is determined that the base station of the target cell and the base station of the original cell adopt different HARQ modes. Judgment module 2 can also determine whether the base station of the target cell and the base station of the original cell use different HARQ modes according to the HARQ mode of the base station notified by the RNC, specifically as described in the above method.

软切换模块二的主要用于在接收到判断模块二的通知后，在软切换过程中，从预定时间点开始采用目标小区基站的HARQ方式发射上行信息。如在预定时间点之前采用原小区基站的HARQ方式进行上行发射，在预定时间点之后采用目标小区基站的HARQ方式进行上行发射。预定时间点等如上述方法中的描述。The soft handover module 2 is mainly used to transmit uplink information in the HARQ mode of the base station of the target cell from a predetermined time point in the soft handover process after receiving the notification from the judgment module 2 . For example, before the predetermined time point, the HARQ mode of the original cell base station is used for uplink transmission, and after the predetermined time point, the HARQ mode of the target cell base station is used for uplink transmission. The predetermined time point and the like are as described in the above method.

第三种终端设备具有：判断模块三和软切换模块三。The third type of terminal equipment has: a judging module three and a soft handover module three.

判断模块三的主要用于在确定目标小区基站与原小区基站采用不相同的HARQ方式时，通知软切换模块三。判断模块三可以在终端设备采用原小区基站的HARQ方式向目标小区基站持续发射预定时间间隔的上行信息后，判断终端设备是否收到目标小区基站的反馈信息，如果确定终端一直不能够接收到目标小区基站的反馈信息，或者终端接收到目标小区基站反馈的信息，但是，反馈的信息不正确时，则认为目标小区没有成功添加到激活集中，即认为原小区基站的HARQ方式和目标小区基站的HARQ方式不一致；如果确定终端能够接收到目标小区基站的反馈信息、且反馈信息正确，则确定原小区基站的HARQ方式和目标小区基站的HARQ方式一致，此时，判断模块三认为目标小区已经成功添加到激活集中，不通知软切换模块三。上述终端设备向目标小区基站发射上行信息时，可以持续发射预定时间间隔，也可以不持续发射预定时间间隔。The judging module three is mainly used to notify the soft handover module three when it is determined that the base station of the target cell and the base station of the original cell adopt different HARQ modes. Judgment module 3 can judge whether the terminal device has received the feedback information from the base station of the target cell after the terminal device uses the HARQ method of the base station of the original cell to continuously transmit the uplink information of the target cell base station to the base station of the target cell. The feedback information from the base station of the cell, or the terminal receives the information fed back from the base station of the target cell, but if the feedback information is incorrect, it is considered that the target cell has not been successfully added to the active set, that is, the HARQ mode of the base station of the original cell is considered to be the same as that of the base station of the target cell. The HARQ mode is inconsistent; if it is determined that the terminal can receive the feedback information from the base station of the target cell and the feedback information is correct, then it is determined that the HARQ mode of the base station of the original cell is consistent with the HARQ mode of the base station of the target cell. At this time, the judgment module 3 considers that the target cell has succeeded Added to the active set without notifying the soft handover module III. When the above-mentioned terminal device transmits uplink information to the base station of the target cell, it may or may not continue to transmit the predetermined time interval.

具体如上述方法中的描述。Specifically as described in the above method.

软切换模块三的主要用于在接收到判断模块三的通知后，在软切换过程中，不删除其和原小区的链路连接。软切换模块三可以不向网络侧反馈激活集更新完成信息，如果已经向网络侧反馈了激活集更新完成信息，则软切换模块三还可以向网络侧反馈激活集更新失败信息。The soft handover module three is mainly used to not delete the link connection with the original cell during the soft handover process after receiving the notification from the judgment module three. The soft handover module 3 may not feed back the active set update completion information to the network side. If the active set update completion information has been fed back to the network side, the soft handover module 3 may also feed back the activation set update failure information to the network side.

第四种终端设备具有：判断模块四和软切换模块四。The fourth type of terminal equipment has: a judging module four and a soft handover module four.

判断模块四的主要用于在终端设备采用原小区基站的HARQ方式发射上行信息，且没有接收到目标小区的反馈信息或接收到错误的反馈信息或无法获知RNC下发的目标小区基站的HARQ方式时，通知软切换模块四。Judgment module 4 is mainly used to transmit uplink information when the terminal equipment uses the HARQ method of the base station of the original cell, and does not receive feedback information from the target cell or receives wrong feedback information or cannot know the HARQ method of the base station of the target cell issued by the RNC , the soft handover module 4 is notified.

软切换模块四主要用于在接收到判断模块二的通知后，在软切换过程中，不删除其和原小区的链路连接。软切换模块四同样可以不向网络侧反馈激活集更新完成信息，如果已经向网络侧反馈了激活集更新完成信息，则软切换模块四还可以向网络侧反馈激活集更新失败信息。The soft handover module 4 is mainly used for not deleting the link connection with the original cell during the soft handover process after receiving the notification from the judging module 2 . The soft handover module 4 also may not feed back the active set update completion information to the network side. If the active set update completion information has been fed back to the network side, the soft handover module 4 may also feed back the activation set update failure information to the network side.

当上述实施例中的多种软切换方法组合使用时，本发明提供的终端设备能够实现多种软切换方法的组合使用功能。如判断模块一首先判断是否已获知目标小区基站的HARQ方式和原小区基站的HARQ方式，如果已获知目标小区基站的HARQ方式和原小区基站的HARQ方式，则继续判断目标小区基站、原小区基站的HARQ方式是否相同，如果相同，则通知软切换模块一按照现有的切换方式进行软切换处理；如果判断模块一确定目标小区基站、原小区基站的HARQ方式不相同，则继续判断目标小区基站、原小区基站的HARQ方式是否能够调整为一致，如果能够调整一致，则通知软切换模块一进行调整，由软切换模块一将目标小区基站、原小区基站的HARQ方式调整为一致，然后，软切换模块一采用调整后的HARQ方式同时向原小区基站和目标小区基站发射上行信号。When multiple soft handover methods in the above embodiments are used in combination, the terminal device provided by the present invention can realize the combined use function of multiple soft handover methods. For example, judging module 1 first judges whether the HARQ mode of the target cell base station and the HARQ mode of the original cell base station have been known; Whether the HARQ modes of the two are the same, if the same, then notify the soft handover module one to perform soft handover processing according to the existing handover mode; if the judgment module one determines that the HARQ modes of the target cell base station and the original cell base station are not the same, then continue to judge the target cell base station , whether the HARQ mode of the original cell base station can be adjusted to be consistent, if it can be adjusted to be consistent, then notify the soft handover module 1 to adjust, and the soft handover module 1 adjusts the HARQ mode of the target cell base station and the original cell base station to be consistent, and then the soft handover module 1 adjusts the HARQ mode of the target cell base station and the original cell base station to be consistent. The switching module one adopts the adjusted HARQ method to simultaneously transmit uplink signals to the base station of the original cell and the base station of the target cell.

如果判断模块一确定目标小区基站、原小区基站的HARQ方式不能够调整为一致，则通知软切换模块一采用不同的HARQ方式进行发射，软切换模块一在接收到判断模块一的通知后，在预定时间点的上一个时刻采用原小区基站的HARQ方式，向原小区基站发射上行信号；在预定时间点的下一个时刻采用目标小区基站的HARQ方式，向目标小区基站发射上行信号。If the judgment module one determines that the HARQ modes of the base station of the target cell and the base station of the original cell cannot be adjusted to be consistent, then the soft handover module one is notified to use a different HARQ mode for transmission, and the soft handover module one is after receiving the notification from the judgment module one. The HARQ method of the base station of the original cell is used at the previous moment of the predetermined time point to transmit an uplink signal to the base station of the original cell; at the next moment of the predetermined time point, the HARQ method of the base station of the target cell is used to transmit an uplink signal to the base station of the target cell.

如果判断模块一不能够获知目标小区基站的HARQ方式和原小区基站的HARQ方式、且终端采用原小区基站的HARQ方式向目标小区基站发射上行信息或持续发射预定时间间隔的上行信息后，判断模块一判断是否接收到目标小区基站的反馈信息、且该反馈信息是否正确，如果判断模块一确定终端一直不能够接收到目标小区基站的反馈信息，或者虽然接收到目标小区基站的反馈信息，但是，反馈的信息不正确，则通知软切换模块一，软切换模块一认为目标小区没有成功添加到激活集中，此时，终端不删除其和原小区的链路连接。If the judgment module 1 cannot know the HARQ method of the base station of the target cell and the HARQ method of the base station of the original cell, and the terminal uses the HARQ method of the base station of the original cell to transmit uplink information to the base station of the target cell or continuously transmit uplink information for a predetermined time interval, the judgment module Judging whether the feedback information of the base station of the target cell is received and whether the feedback information is correct, if the judgment module determines that the terminal has not been able to receive the feedback information of the base station of the target cell, or although the feedback information of the base station of the target cell is received, If the feedback information is incorrect, then soft handover module 1 is notified. Soft handover module 1 thinks that the target cell has not been successfully added to the active set. At this time, the terminal does not delete its link connection with the original cell.

如果判断模块一确定终端能够接收到目标小区基站的反馈信息、且反馈信息正确，则通知软切换模块一，软切换模块一认为原小区基站的HARQ方式和目标小区基站的HARQ方式一致，而且，目标小区已经成功添加到激活集中，软切换模块一可以删除其和原小区基站的链路连接。If the judgment module one determines that the terminal can receive the feedback information of the base station of the target cell and the feedback information is correct, it notifies the soft handover module one, and the soft handover module one thinks that the HARQ mode of the base station of the original cell is consistent with the HARQ mode of the base station of the target cell, and, The target cell has been successfully added to the active set, and the soft handover module 1 can delete its link connection with the base station of the original cell.

同样，判断模块二、判断模块三、判断模块四均可以具有上述判断模块一的功能，软切换模块二、软切换模块三和软切换模块四均可以具有上述软切换模块一的功能。在此不再详细描述。Similarly, judging module 2, judging module 3, and judging module 4 can all have the function of judging module 1 above, and soft handover module 2, soft handover module 3 and soft handover module 4 can all have the function of soft handover module 1 above. It will not be described in detail here.

在采用上述软切换方法时，可以采用现有的软切换性能评估方法，现有的软切换性能评估方法为：When using the above soft handover method, the existing soft handover performance evaluation method can be used, and the existing soft handover performance evaluation method is:

在HSUPA中，当UE处在软切换时，可以同时和四个小区保持通信链路，这些小区都属于激活集。激活集更新就是更新UE和UTRAN之间保持的通信链路激活集。激活集更新包括：在激活集中添加、改变或减少无线通信链路。UE执行激活集更新操作是由UTRAN下发Active Set Update(激活集更新)信息控制的。In HSUPA, when the UE is in soft handover, it can maintain communication links with four cells at the same time, and these cells all belong to the active set. The active set update is to update the active set of the communication link maintained between the UE and the UTRAN. The active set update includes: adding, changing or reducing wireless communication links in the active set. The execution of the UE's Active Set Update operation is controlled by the Active Set Update (Active Set Update) information issued by the UTRAN.

UE执行激活集更新的性能要求主要包括如下两点：The performance requirements for UE to perform active set update mainly include the following two points:

1.激活集更新延迟要求小于50+10*KC+100*OC ms，其中，KC是激活集更新信息中已知的小区数，OC是未知的小区数。激活集更新延迟定义为UE接收到UTRAN下发的Active set update信息或者UE开始执行激活集更新过程的时间、和UE成功使用Active set update信息中的无线通信链路进行功率控制的时间之间的时间称为激活集延迟时间。1. The active set update delay is required to be less than 50+10*KC+100*OC ms, where KC is the number of known cells in the active set update information, and OC is the number of unknown cells. The active set update delay is defined as the time between when the UE receives the Active set update information issued by UTRAN or when the UE starts to execute the active set update process, and when the UE successfully uses the wireless communication link in the Active set update information to perform power control The time is called the active set latency.

2.UE在更新激活集过程中不会中断数据流。2. The UE will not interrupt the data flow during the process of updating the active set.

在采用上述软切换方法时，也可以采用下述本发明的软切换性能评估方法，本发明的软切换性能评估方法为：根据小区对HSUPA业务的支持能力设置软切换性能要求，根据所述软切换性能要求对终端的软切换行为进行软切换性能评估。When adopting above-mentioned soft handover method, also can adopt following soft handover performance evaluation method of the present invention, the soft handover performance evaluation method of the present invention is: set the soft handover performance requirement according to the sub-district to HSUPA service support ability, according to the soft handover performance evaluation method of the present invention, The handover performance requires soft handover performance evaluation on the soft handover behavior of the terminal.

本发明需要根据小区对HSUPA业务的支持能力来设置软切换性能要求，对终端的软切换行为进行软切换性能评估的终软切换性能要求通常包括：终端同时支持的链路、激活集更新、数据流性能。本发明可以根据小区对HSUPA业务的支持能力设置终端同时支持的链路、激活集更新、数据流性能中的一个或多个。这里，小区对HSUPA业务的支持能力包括：基站具有chase only能力、基站具有IR only能力和基站具有chase+IR能力。The present invention needs to set the soft handover performance requirements according to the support ability of the cell to the HSUPA service, and the soft handover performance evaluation of the soft handover behavior of the terminal usually includes: the links supported by the terminal at the same time, the active set update, the data streaming performance. The present invention can set one or more of the links supported by the terminal at the same time, the update of the active set, and the performance of the data flow according to the ability of the cell to support the HSUPA service. Here, the ability of the cell to support the HSUPA service includes: the base station has the chase only capability, the base station has the IR only capability, and the base station has the chase+IR capability.

在根据小区对HSUPA业务的支持能力设置终端同时支持的链路时，终端最大仍可同时保持4条链路，但是考虑到基站能力，这4条链路可能不能完全应用于获得HSUPA数据，也就是说，在终端激活集中的小区对HSUPA业务的支持能力不同时，允许终端同时支持的链路不是同时有效的链路。When setting the links supported by the terminal at the same time according to the ability of the cell to support HSUPA services, the terminal can still maintain a maximum of 4 links at the same time. However, considering the capabilities of the base station, these 4 links may not be fully used to obtain HSUPA data, or That is to say, when the cells in the terminal activation set have different support capabilities for the HSUPA service, the links that are allowed to be supported by the terminal at the same time are not valid links at the same time.

在根据小区对HSUPA业务的支持能力设置激活集更新时，终端仍然可以采用现有的激活集更新时间性能，但是考虑到基站能力，激活集中的某些链路可能不能成功应用于功率控制，也就是说，在终端激活集中的小区对HSUPA业务的支持能力不同时，允许终端支持的链路不能同时进行功率控制。When setting the active set update according to the ability of the cell to support HSUPA services, the terminal can still use the existing active set to update the time performance, but considering the capabilities of the base station, some links in the active set may not be successfully applied to power control. That is to say, when the cells in the terminal activation concentration have different support capabilities for the HSUPA service, the links supported by the terminal cannot perform power control at the same time.

在根据小区对HSUPA业务的支持能力设置激活集更新时，也可以将终端的激活集更新时间性能延迟预定时间间隔，延迟的预定时间间隔可以为T*NC，T为更改HARQ发射时间，如果终端不用更改HARQ，则NC＝0，否则NC＝1。这样，终端的激活集更新时间的计算方法为：50+10*KC+100*OC ms+T*NC。When setting the active set update according to the ability of the cell to support the HSUPA service, the active set update time performance of the terminal can also be delayed by a predetermined time interval. The delayed predetermined time interval can be T*NC, and T is to change the HARQ transmission time. If the terminal If HARQ is not changed, then NC=0, otherwise NC=1. In this way, the calculation method of the active set update time of the terminal is: 50+10*KC+100*OC ms+T*NC.

在根据小区对HSUPA业务的支持能力设置数据流性能时，终端的数据流发射不会中断，但是，数据性能可能降低，这样，在终端激活集中的小区对HSUPA业务的支持能力不同时，需要降低软切换性能要求中的数据性能要求。When the data flow performance is set according to the ability of the cell to support the HSUPA service, the transmission of the data flow of the terminal will not be interrupted, but the data performance may be reduced. Data performance requirements in soft handover performance requirements.

在根据小区对HSUPA业务的支持能力设置数据流性能时，终端的数据流发射可能会中断，这样，在终端激活集中的小区对HSUPA业务的支持能力不同时，允许终端发射的数据流中断。When the data flow performance is set according to the ability of the cells to support the HSUPA service, the data flow transmission of the terminal may be interrupted. In this way, when the cells in the terminal activation concentration have different support capabilities for the HSUPA service, the data flow transmitted by the terminal is allowed to be interrupted.

通过上述描述设置了终端的软切换性能要求后，当终端支持HSUPA业务，触发软切换过程，终端在软切换性能要求下进行HSUPA发射。After the soft handover performance requirements of the terminal are set through the above description, when the terminal supports the HSUPA service, the soft handover process is triggered, and the terminal performs HSUPA transmission under the soft handover performance requirements.

虽然通过实施例描绘了本发明，本领域普通技术人员知道，本发明有许多变形和变化而不脱离本发明的精神，本发明的申请文件的权利要求包括这些变形和变化。Although the present invention has been described by way of example, those of ordinary skill in the art know that there are many variations and changes in the present invention without departing from the spirit of the invention, and the claims of the application document of the present invention include these variations and changes.

Claims (16)

1, a kind of soft handover method is characterized in that, described method comprises:

A, terminal are adjusted into identical HARQ mode with the HARQ mode of target cell base station and former cell base station when determining target cell base station and the employing of former cell base station HARQ mode inequality;

B, terminal are carried out soft handover according to adjusted HARQ mode.

2, a kind of soft handover method as claimed in claim 1 is characterized in that, among the described step a, terminal determines according to the HARQ mode of the base station of RNC notice whether target cell base station and former cell base station adopt HARQ mode inequality.

3, a kind of soft handover method as claimed in claim 1 or 2 is characterized in that, the step that among the described step a HARQ mode of target cell base station and former cell base station is adjusted into identical HARQ mode comprises:

The HARQ mode of former cell base station is adjusted into the HARQ mode of target cell base station; Or

The HARQ mode of target cell base station is adjusted into the HARQ mode of former cell base station.

4, a kind of soft handover method is characterized in that, described method comprises:

Terminal in soft switching process, begins to adopt the HARQ mode of target cell base station to launch uplink information from predetermined point of time when determining that target cell base station and former cell base station adopt HARQ mode inequality.

5, a kind of soft handover method as claimed in claim 4 is characterized in that, in the described method, terminal determines according to the HARQ mode of the base station of RNC notice whether target cell base station and former cell base station adopt HARQ mode inequality.

6, a kind of soft handover method as claimed in claim 4 is characterized in that, described predetermined point of time is: before activating set updating end time of delay and at the time started of TTI point.

As claim 4,5 or 6 described a kind of soft handover methods, it is characterized in that 7, the step that begins to adopt the HARQ mode of target cell base station to launch uplink information from predetermined point of time comprises:

Adopted the HARQ mode of former cell base station to launch uplink information at the fixed time, begin to adopt the HARQ mode of target cell base station to launch uplink information from predetermined point of time.

8, a kind of soft handover method is characterized in that, described method comprises:

Terminal is when determining target cell base station and the employing of former cell base station HARQ mode inequality, and in soft switching process, the link of not deleting itself and former sub-district is connected.

9, a kind of soft handover method as claimed in claim 8 is characterized in that, in the described method, terminal determines that target cell base station and former cell base station adopt the step of HARQ mode inequality to comprise:

After terminal adopts the HARQ mode of former cell base station to launch uplink information, when not receiving the feedback information of Target cell or receiving wrong feedback information, determine that target cell base station and former cell base station adopt HARQ mode inequality.

10, a kind of as claimed in claim 8 or 9 soft handover method is characterized in that, described method also comprises:

Terminal does not send activating set updating to network side and finishes information; Or

Terminal sends the information of activating set updating failure to network side.

11, a kind of soft handover method is characterized in that, described method comprises:

Terminal adopts the HARQ mode of former cell base station to launch uplink information, and do not receive the feedback information of Target cell or receive wrong feedback information maybe can't know the HARQ mode of the target cell base station that RNC issues the time, in soft switching process, the link of not deleting itself and former sub-district is connected.

12, a kind of soft handover method as claimed in claim 11 is characterized in that, described method also comprises:

Terminal does not send activating set updating to network side and finishes information; Or

Terminal sends the information of activating set updating failure to network side.

13, a kind of terminal equipment is characterized in that, described terminal equipment comprises:

Judge module one is used for when determining that target cell base station and former cell base station adopt HARQ mode inequality, notice soft switching module one;

Soft switching module one is used for after the notice that receives judge module one, the HARQ mode of target cell base station and former cell base station is adjusted into identical HARQ mode, and carries out soft handover according to adjusted HARQ mode.

14, a kind of terminal equipment is characterized in that, described terminal equipment comprises:

Judge module two is used for when determining that target cell base station and former cell base station adopt HARQ mode inequality, notice soft switching module two;

Soft switching module two is used for after the notice that receives judge module two, in soft switching process, begins to adopt the HARQ mode of target cell base station to launch uplink information from predetermined point of time.

15, a kind of terminal equipment is characterized in that, described terminal equipment comprises:

Judge module three is used for when determining that target cell base station and former cell base station adopt HARQ mode inequality, notice soft switching module three;

Soft switching module three is used for after the notice that receives judge module three, and in soft switching process, the link of not deleting itself and former sub-district is connected.

16, a kind of terminal equipment is characterized in that, described terminal equipment comprises:

The judge module four-function is launched uplink information in the HARQ mode that adopts former cell base station at terminal equipment, and do not receive the feedback information of Target cell or receive wrong feedback information maybe can't know the HARQ mode of the target cell base station that RNC issues the time, notice soft switching module four;

The soft switching module four-function is after the notice that is receiving judge module four, and in soft switching process, the link of not deleting itself and former sub-district is connected.

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