WO2007137476A1

WO2007137476A1 - Power control method, system, netwotk device and access terminal

Info

Publication number: WO2007137476A1
Application number: PCT/CN2007/001231
Authority: WO
Inventors: Juejun Liu
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-05-25
Filing date: 2007-04-16
Publication date: 2007-12-06
Also published as: CN101047410B; CN101047410A

Abstract

A power control method comprises the following steps: a network side sends a first message to an access terminal, wherein, the first message carries with a service channel gain hold duration information; and the access terminal receives the first message, then enters the service channel gain hold state according to the service channel gain hold duration information in the first message. A power control system includes an access terminal and a network side, wherein the network side includes a message transmission module, and the access terminal includes a judgment module. A network device includes a message transmission module. An access terminal includes a judgment module.

Description

功率控制方法、 ***、网络设备和接入终端 Power control method, system, network device and access terminal

技术领域 Technical field

本发明涉及通信领域，并且更特别地，涉及功率控制方法、功率控制***、网络设备和接入终端。发明背景 The present invention relates to the field of communications and, more particularly, to power control methods, power control systems, network devices, and access terminals. Background of the invention

在 OFDMA (OFDM Access, 正交频分复用多址接入）***中，由于小区内用户之间分配的频率子载波相互保持正交，干扰主要是来自于外扇区的同频干扰，所以如何减轻小区之间的干扰是提高 OFDMA***容量的关键。可以通过频率规划重用来减轻小区之间的干扰，也可以通过功率控制来减轻小区之间的干扰。 In the OFDMA (OFDM Access, Orthogonal Frequency Division Multiple Access) system, since the frequency subcarriers allocated between users in the cell are orthogonal to each other, the interference mainly comes from the co-channel interference of the outer sector, so How to mitigate interference between cells is the key to improving the capacity of the OFDMA system. It can be reused by frequency planning to reduce interference between cells, and power control can also be used to mitigate interference between cells.

在反向数据传输中，反向业务信道增益（RDCH Gain, Reverse Data Channel, 反向数据信道）越大， AT (Access Terminal, 接入终端）可以在数据信道上传输的数据速率越高，但是同时对相邻扇区的反向干扰也越大。因此，为了减轻小区之间的反向干扰，一种通过功率控制方法为：每个扇区不断测量整个可用频带上的来自外扇区的干扰信息，并且通过前向信道（F-OSICH, Fast-Other Sector Interference Channel, 快速-其他扇区干扰信道）将测量的信息广播出去。每个 AT接收来自非服务扇区广播的外扇区干扰信息（OSI， Other Sector Interference, 其他扇区干扰），并且根据一定算法调整 AT的 RDCH Gain。该算法包括：如果 AT监听到非服务扇区受到的干扰很大，并且自身离非服务扇区的距离比较近，则 AT就应该降低自身的发射功率，即通过降低 RDCH Gain, 来减轻对相邻非服务扇区的干扰；相反，如果 AT监听到非服务扇区受到的干扰很小，并且自身离非服务扇区又比较远，则 AT就可以增大发射功率，即增大 RDCH Gain, 这样提高了自身传输速率，又不会对外扇区造成太大干扰。 In reverse data transmission, the larger the reverse traffic channel gain (RDCH Gain, Reverse Data Channel), the higher the data rate that the AT (Access Terminal) can transmit on the data channel, but At the same time, the reverse interference to adjacent sectors is also larger. Therefore, in order to mitigate reverse interference between cells, a power control method is: Each sector continuously measures interference information from an external sector over the entire available frequency band, and passes through the forward channel (F-OSICH, Fast - Other Sector Interference Channel, which broadcasts the measured information. Each AT receives external sector interference information (OSI, other sector interference) from the non-serving sector broadcast, and adjusts the RDCH Gain of the AT according to a certain algorithm. The algorithm includes: If the AT monitors that the non-serving sector is subject to large interference and its own distance from the non-serving sector is relatively close, the AT should reduce its own transmit power, ie, reduce the phase by reducing the RDCH Gain. Interference from a neighboring non-serving sector; conversely, if the AT hears that the non-serving sector is subject to little interference and is far away from the non-serving sector, the AT can increase the transmit power, ie, increase the RDCH Gain, This increases the transmission rate of itself and does not cause too much interference to the external sector.

然而，在现有无线接入***中，业务类型丰富，对于不同的业务和不同等级的用户， QoS优先级各不相同，如何保证业务的 QoS优先级是一项关键技术。在现有技术中，在实现业务信道功率控制时，并没有考虑不同用户以及不同业务需求。在某些情况下，某些优先级较高的用户或者某些 QoS需求较高的业务，可能需要特殊处理。例如，某个 VIP用户正在进行呼叫，周围扇区广播的干扰信息为干扰大，经过算法处理，该用户发现自己应该降低 RDCH Gain, 如果降低 RDCH Gain, 则用户传输性能必然下降，将可能对用户正在传输的业务造成影响，比如正在进行可视电话，如果传输速率下降，则可能影响可视电话的质量。也就是说，在 802.20现有的反向业务信道功控算法中，并没有考虑到对不同用户不同业务的区分，所有的用户都根据广播的干扰信息进行功率调节，这虽然可以适当减轻对外扇区的干扰，但是对于业务 QoS需求的支持较差。而且，对于其他一些需要比较稳定传输速率的业务，可能需要比较稳定的 RDCH Gain支持。 However, in the existing wireless access system, the service types are rich, and the QoS priorities are different for different services and different levels of users. How to ensure the QoS priority of the service is a key technology. In the prior art, when implementing traffic channel power control, different users and different service requirements are not considered. In some cases, certain higher priority users or certain services with higher QoS requirements may require special handling. For example, if a VIP user is making a call, the interference information broadcast by the surrounding sector is large, and after processing by the algorithm, the user finds that he should reduce the RDCH Gain. If the RDCH Gain is lowered, the user transmission performance will inevitably decrease, and the user may be The traffic being transmitted has an impact, such as a video call being made, and if the transmission rate is reduced, it may affect the quality of the videophone. In other words, in the existing reverse traffic channel power control algorithm of 802.20, there is no Considering the differentiation of different services for different users, all users perform power adjustment according to the broadcast interference information. Although this can appropriately mitigate the interference of external sectors, the support for service QoS requirements is poor. Moreover, for other services that require a relatively stable transmission rate, more stable RDCH Gain support may be required.

如果希望 AT的 RDCH Gain保持不变，在网络侧通过指配来实现 RDCH Gain保持不变的情况下，可以通过现有的指配消息 RLAB (Reverse Linlc Assignment Block, 反向链路指配块）或者 NS-RLAB (Non-Sticky Reverse Link Assignment Block, 非粘性 -反向链路指配块）来实现。 RLAB属于 sticky (粘贴）指配模式， NS-RLAB属于非 sticky 指配模式。 If you want the RDCH Gain of the AT to remain unchanged, you can use the existing assignment message RLAB (Reverse Link Assignment Block) if the RDCH Gain remains unchanged by the assignment on the network side. Or NS-RLAB (Non-Sticky Reverse Link Assignment Block, non-sticky-reverse link assignment block). RLAB is a sticky assignment mode and NS-RLAB is a non-stick assignment mode.

例如，在非 sticky指配模式下，指配消息 NS-RLAB格式如表 1所示： For example, in non-sticky assignment mode, the assignment message NS-RLAB format is shown in Table 1:

表 1 Table 1

如表 1所示，虽然 Delta可以指定 AT使用的 RDCH Gain, 但仅对数据传输的第一帧有效，之后的每帧数据传输， AT又将根据干扰信息进行功率调整，即 AT的发射功率，主要是依赖接收到的外扇区 OSI信息的控制进行调整，如果需要 AT保持 RDCH Gain, 则网络侧需要为每帧发送指配消息，以进行功率指配，导致指配开销增多。 As shown in Table 1, although Delta can specify the RDCH Gain used by the AT, it is only valid for the first frame of data transmission. After each frame of data transmission, the AT will perform power adjustment according to the interference information, that is, the transmit power of the AT. It is mainly adjusted according to the control of the received external sector OSI information. If the AT is required to maintain the RDCH Gain, the network side needs to send an assignment message for each frame to perform power assignment, resulting in an increase in the allocation overhead.

同样，在 sticky模式下，指配消息 RLAB格式如表 2所示- 表 2 Similarly, in sticky mode, the assignment message RLAB format is shown in Table 2 - Table 2

表 2中，指配的功率信息 Delta也只对数据传输的第一帧有效，如果需要 AT保持 RDCH Gain,网络侧也需要为每帧发送指配消息进行功率指配，从而增加了指配的开销，而且功率指配灵活性也不够。发明内容 In Table 2, the assigned power information Delta is also valid only for the first frame of data transmission. If the AT is required to maintain RDCH Gain, the network side also needs to send an assignment message for each frame for power assignment, thereby increasing the assignment. Overhead, and power assignment flexibility is not enough. Summary of the invention

本发明实施方式提供的功率控制方法、功率控制***、网络设备和接入终端，能够在尽可能减小对外扇区干扰的情况下，减小了***开销，进一步满足不同 QoS业务需求。 The power control method, the power control system, the network device, and the access terminal provided by the embodiments of the present invention can reduce system overhead and further meet different QoS service requirements while minimizing external sector interference.

根据本发明实施方式的一个方面，提供了一种功率控制方法，所述方法包括：网络侧向接入终端发送第一消息，其中，所述第一消息携带有业务信道增益保持期间字段；以及 According to an aspect of the embodiments of the present invention, a power control method is provided, the method includes: the network side sends a first message to an access terminal, where the first message carries a traffic channel gain hold period field;

接入终端接收所述第一消息，所述接入终端根据第一消息中的业务信道增益保持期间字段进入业务信道增益保持状态。 The access terminal receives the first message, and the access terminal enters a traffic channel gain hold state according to a traffic channel gain hold period field in the first message.

根据本发明实施方式的另一个方面，提供了一种功率控制***，所述***包括：网络侧和接入终端，所述网络侧设置有消息发送模块，所述接入终端中设置有判断模块；消息发送模块，用于发送第一消息，其中，所述第一消息携带有业务信道增益保持期间字段； According to another aspect of the present invention, a power control system is provided, where the system includes: a network side and an access terminal, where the network side is provided with a message sending module, and the access terminal is provided with a determining module a message sending module, configured to send a first message, where the first message carries a traffic channel gain hold period field;

判断模块，用于判断消息发送模块发送的所述第一消息中的业务信道增益保持期间字段，以确定接入终端是否需要进入业务信道增益保持状态，在确定接入终端需要进入业务信道增益保持状态时，通知接入终端，使所述接入终端进入所述业务信道增益保持状态。 a determining module, configured to determine a traffic channel gain hold period field in the first message sent by the message sending module, to determine whether the access terminal needs to enter a traffic channel gain hold state, and determine that the access terminal needs to enter the traffic channel gain hold In the state, the access terminal is notified to enable the access terminal to enter the traffic channel gain hold state.

本发明实施方式还提供一种网络设备，所述网络设备中设置有消息发送模块；消息发送模块，用于发送第一消息，其中，所述第一消息携带有业务信道增益保持期间字段； The embodiment of the present invention further provides a network device, where the network device is provided with a message sending module, and the message sending module is configured to send a first message, where the first message carries a traffic channel gain holding period field;

所述消息发送模块发送的第一消息中的所述字段用于指示接入终端进入所述业务信道增益保持状态。 The field in the first message sent by the message sending module is used to indicate that the access terminal enters the service channel gain holding state.

本发明实施方式还提供一种接入终端，所述接入终端中设置有判断模块；判断模块，用于判断接入终端接收到的第一消息中的业务信道增益保持期间字段，以确定接入终端是否需要进入业务信道增益保持状态，在确定接入终端需要进入业务信道增益保持状态时，通知接入终端，使所述接入终端进入所述业务信道增益保持状态。 An embodiment of the present invention further provides an access terminal, where the access terminal is provided with a determining module, and the determining module is configured to determine a service channel gain holding period field in the first message received by the access terminal, to determine Whether the access terminal needs to enter the traffic channel gain hold state, and when determining that the access terminal needs to enter the traffic channel gain hold state, notify the access terminal to enable the access terminal to enter the traffic channel gain hold state.

本发明实施方式还提供一种功率控制方法，包括以下步骤： An embodiment of the present invention further provides a power control method, including the following steps:

网络侧将业务信道增益保持期间信息携带在第一消息中； The network side carries the traffic channel gain hold period information in the first message;

网络侧发送携带有业务信道增益保持期间信息的第一消息； Transmitting, by the network side, a first message carrying information about a traffic channel gain hold period;

所述业务信道增益保持期间信息用于指示接收到所述第一消息的接入终端进入业务信道增益保持状态。 The traffic channel gain hold period information is used to indicate that an access terminal that receives the first message enters the industry The channel gain is maintained.

接入终端接收网络侧发送的第一消息，其中，所述第一消息携带有业务信道增益保持期间信息； The access terminal receives the first message sent by the network side, where the first message carries the traffic channel gain holding period information;

接入终端根据所述第一消息中的业务信道增益保持期间信息进入业务信道增益保持状态。 The access terminal enters a traffic channel gain hold state according to the traffic channel gain hold period information in the first message.

通过以上技术方案，本发明实施方式在尽可能减小对外扇区干扰的情况下，减小了 ***开销，进一步满足了不同 QoS业务需求。附图简要说明 With the above technical solution, the embodiment of the present invention reduces system overhead while further reducing external sector interference, and further satisfies different QoS service requirements. BRIEF DESCRIPTION OF THE DRAWINGS

图 1是示出根据本发明第一实施例的功率控制方法的流程示意图； 1 is a flow chart showing a power control method according to a first embodiment of the present invention;

图 2是示出根据本发明第二实施例的功率控制方法的流程示意图；以及图 3是示出根据本发明的第四实施例的功率控制***的示意框图。实施本发明的方式 2 is a flow chart showing a power control method according to a second embodiment of the present invention; and FIG. 3 is a schematic block diagram showing a power control system according to a fourth embodiment of the present invention. Mode for carrying out the invention

首先，网络侧将业务信道增益保持期间信息携带在第一消息中，并向接入终端发送第一消息。第一消息中的业务信道增益保持期间可以指示接入终端进入业务信道增益保持状态。 First, the network side carries the traffic channel gain hold period information in the first message, and sends the first message to the access terminal. The traffic channel gain hold period in the first message may indicate that the access terminal enters the traffic channel gain hold state.

然后，接入终端接收网络侧发送的第一消息。接入终端判断接收到的第一消息中是否携带有业务信道增益保持期间信息，接入终端在判断出第一消息中携带有业务信道增益保持期间信息后，根据业务信道增益保持期间信息的指示进入业务信道增益保持状态。 Then, the access terminal receives the first message sent by the network side. The access terminal determines whether the received first message carries the traffic channel gain holding period information, and after determining that the first message carries the traffic channel gain holding period information, the access terminal indicates the information according to the traffic channel gain holding period information. Enter the traffic channel gain hold state.

当接入终端进入业务信道增益保持状态后，接入终端的业务信道增益可以不再受非服务扇区干扰的影响。而且，接入终端在进入业务信道增益保持状态后，接入终端的业务信道增益可以为预定业务信道增益，该预定业务信道增益可以为接入终端当前的业务信道增益，也可以为网络侧指定的业务信道增益，还可以为其它形式，如接入终端默认的业务信道增益等等。当预定业务信道增益为网络侧指定的业务信道增益时，网络侧可以将指定的业务信道增益携带在第一消息中发送给接入终端。 ' After the access terminal enters the traffic channel gain hold state, the traffic channel gain of the access terminal may no longer be affected by the non-serving sector interference. Moreover, after the access terminal enters the traffic channel gain hold state, the traffic channel gain of the access terminal may be a predetermined traffic channel gain, where the predetermined traffic channel gain may be the current service channel gain of the access terminal, or may be specified by the network side. The traffic channel gain can also be in other forms, such as the default traffic channel gain of the access terminal, and the like. When the predetermined traffic channel gain is the traffic channel gain specified by the network side, the network side may carry the specified traffic channel gain in the first message and send it to the access terminal. '

接入终端进入业务信道增益保持状态后，接入终端可以在预定期间后退出业务信道增益保持状态，接入终端也可以在接收到网络侧发送来的退出命令后退出业务信道增益保持状态。这里的预定期间可以通过业务信道增益保持期间信息来表示，如当业务信道增益保持期间信息为非零值时，接入终端进入业务信道增益保持状态，且接入终端处于业务信道增益保持状态的持续时间为业务信道增益保持期间信息表示的数值。 After the access terminal enters the traffic channel gain hold state, the access terminal may exit the traffic channel gain hold state after the predetermined period, and the access terminal may also exit the traffic channel gain hold state after receiving the exit command sent by the network side. The predetermined period here can be represented by the traffic channel gain holding period information, such as when the traffic channel When the gain hold period information is non-zero, the access terminal enters the traffic channel gain hold state, and the duration in which the access terminal is in the traffic channel gain hold state is the value indicated by the traffic channel gain hold period information.

以下将参照附图来描述本发明的实施例。 Embodiments of the present invention will be described below with reference to the drawings.

第一实施例 First embodiment

首先参照图 1，图 1示出了根据本发明第一实施例的功率控制方法的流程图。在步骤 S101中，网络侧（AN， Access Network, 接入网络）向接入终端（AT)发送带内信令消息，指示 AT进入 RDCH Gain (业务信道增益）保持状态，其中，带内信令消息中携带有业务信道增益保持期间（RDCH Gain Hold Duration)字段，用于表示 AT保持 RDCH Gain不变的持续时间。该带内信令消息可以为层 3带内信令消息。层 3 带内信令消息的格式可以如表 3所示： Referring first to Figure 1, there is shown a flow chart of a power control method in accordance with a first embodiment of the present invention. In step S101, the network side (AN, Access Network, access network) sends an in-band signaling message to the access terminal (AT), instructing the AT to enter the RDCH Gain (traffic channel gain) hold state, where the in-band signaling The message carries a RDCH Gain Hold Duration field for indicating the duration that the AT keeps the RDCH Gain unchanged. The in-band signaling message may be a layer 3 in-band signaling message. The format of layer 3 in-band signaling messages can be as shown in Table 3:

表 3 table 3

接下来，在步骤 S102中，接入终端判断 RDCH Gain Hold Duration字段的值是否为 0，在上述字段的值为 0的情况下， AT将忽略所接收的带内信令消息，而在上述字段的值不为 0的情况下， AT复位为 RDCH Gain Hold Duration字段的值进行计时的计时器，并将在步骤 S103中进入 RDCH Gain保持状态。上述计时器的计时时长为 RDCH Gain Hold Duration字段的值。本发明实施方式也可以在带内信令消息中再增加 lbit的指示字段，以指示 AT必须进入业务信道增益保持状态，此时，带内信令消息中的 RDCHGain Hold Duration可以是一个非 0值。 Next, in step S102, the access terminal determines whether the value of the RDCH Gain Hold Duration field is 0. If the value of the above field is 0, the AT will ignore the received in-band signaling message, and in the above field In the case where the value is not 0, the AT resets to the timer for counting the value of the RDCH Gain Hold Duration field, and will enter the RDCH Gain hold state in step S103. The timing of the above timer is the value of the RDCH Gain Hold Duration field. The embodiment of the present invention may further add an indication field of lbit in the inband signaling message to indicate that the AT must enter the traffic channel gain holding state. At this time, the RDCHGain in the inband signaling message Hold Duration can be a non-zero value.

接入终端在进入 RDCH Gain保持状态后，可以停止监听外扇区广播的扇区干扰信息，停止更新业务信道增益，并且以预定业务信道增益进行业务信道功率发射。这里的预定业务信道增益可以为接入终端当前的业务信道增益，也可以为带内信令消息中携带的业务信道增益。 After entering the RDCH Gain hold state, the access terminal may stop listening to the sector interference information broadcast by the outer sector, stop updating the traffic channel gain, and perform traffic channel power transmission with a predetermined traffic channel gain. Here, the predetermined traffic channel gain may be the current traffic channel gain of the access terminal, or may be the traffic channel gain carried in the inband signaling message.

接下来，在步骤 S104中， AT判断计时器的值是否为 0，如果为 0 (即， RDCH Gain Hold Duration字段的值减小至 0)，则到步骤 S105，退出 RDCH Gain保持状态；如果不为 0，则***时间每过 1个物理帧，计时器的值递减 1，直到计时器递减至 0，然后到步骤 S105, 退出 RDCH Gain保持状态，本次功率控制方法结束，之后接入终端可以重新开始监听外扇区广播的 OSI信息，并且更新 RDCH Gain。 Next, in step S104, the AT determines whether the value of the timer is 0. If it is 0 (ie, the value of the RDCH Gain Hold Duration field decreases to 0), then to step S105, the RDCH Gain hold state is exited; If the system time is 0, the value of the timer is decremented by 1 until the timer is decremented to 0. Then, the process goes to step S105 to exit the RDCH Gain hold state. The power control method ends, and then the access terminal can The OSI information of the outer sector broadcast is restarted, and the RDCH Gain is updated.

在上述第一实施例中，通过计时器来实现 AT退出 RDCH Gain保持状态，然而，本发明实施方式并不局限于此，例如，如下文中将在第二实施例中描述的，这可以通过设置带内信令消息中的 RDCH Gain Hold Duration字段值来实现。 In the above-described first embodiment, the AT exits the RDCH Gain hold state by the timer, however, the embodiment of the present invention is not limited thereto, for example, as will be described later in the second embodiment, this can be set by The RDCH Gain Hold Duration field value in the in-band signaling message is implemented.

第二实施例 Second embodiment

以下将参照附图来描述本发明的第二实施例。参照图 2，图 2示出了本发明第二实施例的功率控制方法的流程图。 A second embodiment of the present invention will be described below with reference to the accompanying drawings. Referring to Figure 2, there is shown a flow chart of a power control method of a second embodiment of the present invention.

与第一实施例类似，在步骤 S201 中，网络侧（AN) 向接入终端（AT) 发送带内信令消息，指示 AT进入 RDCH Gain (业务信道增益）保持状态，其中，带内信令消息中携带有业务信道增益保持期间（RDCH Gain Hold Duration) 字段，用于表示 AT保持 RDCH Gain不变的持续时间。 Similar to the first embodiment, in step S201, the network side (AN) transmits an in-band signaling message to the access terminal (AT) indicating that the AT enters the RDCH Gain (Traffic Channel Gain) hold state, wherein the in-band signaling The message carries a RDCH Gain Hold Duration field, which is used to indicate the duration that the AT keeps the RDCH Gain unchanged.

接下来，在步骤 S202中，接入终端判断 RDCH Gain Hold Duration字段的值是否为 0，在上述字段的值为 0的情况下， AT将忽略所接收的带内信令消息，而在上述字段的值不为 0的情况下，到步骤 S203，接入终进入 RDCH Gain保持状态。 Next, in step S202, the access terminal determines whether the value of the RDCH Gain Hold Duration field is 0. If the value of the above field is 0, the AT will ignore the received in-band signaling message, and in the above field In the case where the value is not 0, the process proceeds to step S203, and the access terminal enters the RDCH Gain hold state.

接下来，在步骤 S204中， AN再次向 AT发送带内信令消息，并且其中所携带的 RDCH Gain Hold Duration字段的值为 0，用于指示 AT退出 RDCH Gain保持状态， AT 响应该消息，到步骤 S205， AT退出 RDCH Gain保持状态，之后可以重新开始监听外扇区广播的 OSI信息，并且更新 RDCH Gain。 Next, in step S204, the AN sends an in-band signaling message to the AT again, and the value of the RDCH Gain Hold Duration field carried therein is 0, indicating that the AT exits the RDCH Gain hold state, and the AT responds to the message, to Step S205, the AT exits the RDCH Gain hold state, and then can start monitoring the external fan again. The area broadcasts the OSI information, and updates RDCH Gain.

第三实施例 Third embodiment

在本发明第三实施例的功率控制方法中，其与第一实施例和第二实施例的不同在于，在第一步骤中， AN通过开销信道向 AT发送层 2指配消息如 NS-RLAB (非粘性反向指配消息），用于指示 AT进入 RDCH Gain保持状态。层 2指配消息中同样可以携带有 RDCH Gain Hold Duration字段。一种修改后的 NS-RLAB消息可以如表 4所示：表 4 In the power control method of the third embodiment of the present invention, it differs from the first embodiment and the second embodiment in that, in the first step, the AN transmits a layer 2 assignment message to the AT through the overhead channel, such as NS-RLAB. (Non-viscous reverse assignment message), used to instruct the AT to enter the RDCH Gain hold state. The Layer 2 assignment message can also carry the RDCH Gain Hold Duration field. A modified NS-RLAB message can be found in Table 4: Table 4

除此之外，本发明第三实施例的实现过程与第一实施例和第二实施例的实现过程相同，在此将省略对相同部分的重复描述。

Except for this, the implementation process of the third embodiment of the present invention is the same as that of the first embodiment and the second embodiment, and the repeated description of the same portions will be omitted herein.

第四实施例 Fourth embodiment

以下将参照图 3来描述根据本发明的第四实施例，图 3示出了根据本发明第四实施例的功率控制***的示意框图。 A fourth embodiment according to the present invention will now be described with reference to Fig. 3 which shows a schematic block diagram of a power control system in accordance with a fourth embodiment of the present invention.

图 3所示的功率控制***包括：消息发送模块 302和判断模块 304，功率控制*** 还可选的包括定时器 306。消息发送模块 302可以设置于网络侧，如消息发送模块 302 设置于基站中，判断模块 304和定时器 306可以设置于接入终端中。 The power control system shown in FIG. 3 includes: a message sending module 302 and a determining module 304. The power control system optionally further includes a timer 306. The message sending module 302 can be disposed on the network side, for example, the message sending module 302 is disposed in the base station, and the determining module 304 and the timer 306 can be disposed in the access terminal.

消息发送模块 302用于发送第一消息（带内信令消息或层 2指配消息），其中，第一消息用于指示 AT进入 RDCH Gain保持状态并且携带有 RDCH Gain Hold Duration字段；第一消息中还可以携带 lbit的指示字段，以指示 AT必须进入业务信道增益保持状态，此时，带内信令消息中的 RDCHGain Hold Duration可以是一个非 0值。 The message sending module 302 is configured to send a first message (in-band signaling message or layer 2 assignment message), where the first message is used to indicate that the AT enters the RDCH Gain hold state and carries the RDCH Gain Hold Duration field; The lbit indication field may also be carried to indicate that the AT must enter the traffic channel gain hold state. At this time, the RDCHGain Hold Duration in the inband signaling message may be a non-zero value.

判断模块 304，用于判断第一消息中的 RDCH Gain Hold Duration字段是否为 0，从而判断是否需要使 AT进入 RDCH Gain保持状态，其中，当 RDCH Gain Hold Duration 字段为 0时，可以忽略第一消息；当 RDCH Gain Hold Duration字段不为 0时，通知 AT 进入 RDCH Gain保持状态；接入终端在进入 RDCH Gain保持状态后，可以停止监听外扇区广播的扇区干扰信息，停止更新业务信道增益，并且以预定业务信道增益进行业务信道功率发射。这里的预定业务信道增益可以为接入终端当前的业务信道增益，也可以为第一消息中携带的业务信道增益。计时器 306，用于对 RDCH Gain Hold Duration字段所表示的持续时间进行计时，并且当计时器 306的值为 0时，通知 AT退出 RDCH Gain 保持状态。计时器 306可以根据物理帧进行计时。 AT在退出 RDCH Gain保持状态后可以重新开始监听外扇区广播的 OSI信息，并且更新 RDCH Gain。 The determining module 304 is configured to determine whether the RDCH Gain Hold Duration field in the first message is 0, thereby determining whether the AT needs to enter the RDCH Gain hold state, where, when the RDCH Gain Hold Duration When the field is 0, the first message can be ignored; when the RDCH Gain Hold Duration field is not 0, the AT is notified to enter the RDCH Gain hold state; after the access terminal enters the RDCH Gain hold state, the access terminal can stop listening to the fan of the external sector broadcast. The area interference information stops updating the traffic channel gain and performs traffic channel power transmission with a predetermined traffic channel gain. The predetermined traffic channel gain here may be the current traffic channel gain of the access terminal, or may be the traffic channel gain carried in the first message. The timer 306 is configured to time the duration indicated by the RDCH Gain Hold Duration field, and when the value of the timer 306 is 0, notify the AT to exit the RDCH Gain hold state. Timer 306 can be timed based on physical frames. After exiting the RDCH Gain hold state, the AT can resume listening to the OSI information of the outer sector broadcast and update the RDCH Gain.

判断模块 304可以在判断出第一消息中的 RDCH Gain Hold Duration字段为 0，且 AT处于 RDCH Gain保持状态时，通知接入终端退出 RDCH Gain保持状态。 The determining module 304 may notify the access terminal to exit the RDCH Gain hold state when it is determined that the RDCH Gain Hold Duration field in the first message is 0, and the AT is in the RDCH Gain hold state.

这里的第一消息如层 3带内信令消息、层 2指派消息等，层 3带内信令消息的格式等如上述方法实施方式中的描述。本发明实施方式提供的网络设备、接入终端如上述方法、 ***实施方式中的描述，在此不再详细说明。 The first message here is a layer 3 in-band signaling message, a layer 2 assignment message, etc., and the format of the layer 3 in-band signaling message is as described in the above method embodiment. The network device and the access terminal provided by the embodiments of the present invention are described in the foregoing method and system implementation manner, and are not described in detail herein.

通过上述技术方案的描述可以看出，在接入终端进入业务信道增益保持状态后，接入终端的业务信道增益不再受非服务扇区干扰等的影响，接入终端的业务信道增益保持稳定，避免了网络侧每帧发送指配消息的过程，从而避免了指配开销，而且对于一些需要比较稳定传输速率的业务，能够提供比较稳定的 RDCH Gain支持。当接入终端处于业务信道增益保持状态期间采用了当前业务信道增益，而当前业务信道增益是网络侧根据接入终端的业务 QoS需求等因素指配给接入终端的，则能够满足不同业务的 QoS需求。当接入终端处于业务信道增益保持状期间采用了网络侧指定的业务信道增益，而网络侧指定的业务信道增益可以是网络侧根据接入终端的业务 QoS 需求等因素指配给接入终端的，则同样能够满足不同业务的 QoS需求。由于本发明实施方式提供了一种全新的功率控制方法，因此增加了功率控制的灵活性。当接入终端处于业务信道增益保持状态后，接入终端不会由于非服务扇区的干扰小等因素而增大业务信道增益，从而避免了对外扇区造成太大干扰的现象。 It can be seen from the description of the foregoing technical solution that after the access terminal enters the traffic channel gain holding state, the traffic channel gain of the access terminal is no longer affected by the non-serving sector interference, and the access channel's traffic channel gain remains stable. The process of sending the assigned message in each frame on the network side is avoided, thereby avoiding the allocation overhead, and providing relatively stable RDCH Gain support for some services requiring a relatively stable transmission rate. When the access terminal is in the traffic channel gain hold state, the current traffic channel gain is adopted, and the current traffic channel gain is assigned to the access terminal by the network side according to factors such as the service QoS requirement of the access terminal, and the QoS of different services can be satisfied. demand. When the access terminal is in the traffic channel gain retention state, the traffic channel gain specified by the network side is adopted, and the traffic channel gain specified by the network side may be assigned to the access terminal by the network side according to factors such as the service QoS requirement of the access terminal. It can also meet the QoS requirements of different services. Since the embodiment of the present invention provides a completely new power control method, the flexibility of power control is increased. When the access terminal is in the traffic channel gain holding state, the access terminal does not increase the traffic channel gain due to factors such as small interference of the non-serving sector, thereby avoiding the phenomenon that the external sector causes too much interference.

综上所述，本发明实施方式在尽可能减小对外扇区干扰的情况下，减小了***开销，进一步满足了不同 QoS业务需求。 In summary, the embodiment of the present invention reduces system overhead while further reducing external sector interference, and further satisfies different QoS service requirements.

以上所述仅为本发明的实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包括在本发明的保护范围之内。 The above is only the embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

权利要求 Rights request

1、一种功率控制方法，其特征在于，包括以下步骤- 网络侧向接入终端发送第一消息，其中，所述第一消息携带有业务信道增益保持期间信息；以及 A power control method, comprising the steps of: the network side transmitting a first message to the access terminal, wherein the first message carries traffic channel gain retention period information;

所述接入终端接收所述第一消息，接入终端根据所述第一消息中的业务信道增益保持期间信息进入业务信道增益保持状态。 The access terminal receives the first message, and the access terminal enters a traffic channel gain hold state according to the traffic channel gain hold period information in the first message.

2、根据权利要求 1所述的功率控制方法，其特征在于，在所述业务信道增益保持状态下，所述接入终端停止监听外扇区广穑的扇区干扰信息，停止更新业务信道增益，并且以预定业务信道增益进行业务信道功率发射。 2. The power control method according to claim 1, wherein, in the traffic channel gain holding state, the access terminal stops listening to sector interference information of a wide outer sector, and stops updating the traffic channel gain. And performing traffic channel power transmission with a predetermined traffic channel gain.

3、根据权利要求 2所述的功率控制方法，其特征在于，所述预定业务信道增益为：接入终端的当前业务信道增益，或者为：第一消息中携带的、用于指示所述接入终端保持的业务信道增益的业务信道增益。 The power control method according to claim 2, wherein the predetermined traffic channel gain is: a current traffic channel gain of the access terminal, or is: carried in the first message, used to indicate the connection The traffic channel gain of the traffic channel gain that is entered into the terminal.

4、根据权利要求 1所述的功率控制方法，其特征在于，所述方法进一步包括以下步骤： 4. The power control method according to claim 1, wherein the method further comprises the following steps:

所述网络侧向所述接入终端发送所述第一消息，其中携带的业务信道增益保持期间字段为零，指示所述接入终端退出所述业务信道增益保持状态；所述接入终端在确定业务信道增益保持期间字段为零时，退出所述业务信道增益保持状态。 The network side sends the first message to the access terminal, where the carried traffic channel gain hold period field is zero, indicating that the access terminal exits the traffic channel gain hold state; When it is determined that the traffic channel gain hold period field is zero, the traffic channel gain hold state is exited.

5、根据权利要求 1所述的功率控制方法，其特征在于，所述方法进一步包括以下步骤： , The power control method according to claim 1, wherein the method further comprises the following steps:

所述接入终端通过定时器为所述业务信道增益保持期间字段所表示的持续时间进行计时，所述接入终端根据定时器的定时周期退出所述业务信道增益保持状态。 The access terminal counts the duration indicated by the traffic channel gain hold period field by a timer, and the access terminal exits the traffic channel gain hold state according to a timer period of the timer.

6、根据权利要求 1一 5任意一项所述的功率控制方法，其特征在于，所述第一消息是层 3带内信令消息，或者是层 2指配消息。 The power control method according to any one of claims 1 to 5, wherein the first message is a layer 3 in-band signaling message or a layer 2 assignment message.

7、一种功率控制***，其特征在于，包括：接入终端和网络侧，所述网络侧中设置有消息发送模块，所述接入终端中设置有判断模块； A power control system, comprising: an access terminal and a network side, wherein a message sending module is disposed in the network side, and a determining module is disposed in the access terminal;

消息发送模块，用于发送第一消息，其中，所述第一消息携带有业务信道增益保持期间字段； a message sending module, configured to send a first message, where the first message carries a traffic channel gain holding period field;

判断模块，用于接收消息发送模块发送的第一消息，并判断消息发送模块发送的所述第一消息中的业务信道增益保持期间字段，以确定接入终端是否需要进入业务信道增益保持状态，在确定接入终端需要进入业务信道增益保持状态时，使所述接入终端进入所述业务信道增益保持状态。 a determining module, configured to receive a first message sent by the message sending module, and determine a traffic channel gain holding period field in the first message sent by the message sending module, to determine whether the access terminal needs to enter a traffic channel gain holding state, When the access terminal needs to enter the traffic channel gain hold state, the access terminal is allowed to enter The traffic channel gain is maintained.

8、根据权利要求 7所述的功率控制***，其特征在于，在所述业务信道增益保持状态下，所述接入终端停止监听外扇区广播的其它扇区干扰信息，停止更新业务信道增益，并且以现有的业务信道增益或者以第一消息中携带的业务信道增益进行业务信道功率发射。 8. The power control system according to claim 7, wherein, in the traffic channel gain holding state, the access terminal stops listening to other sector interference information broadcast by the outer sector, and stops updating the traffic channel gain. And performing traffic channel power transmission with an existing traffic channel gain or with a traffic channel gain carried in the first message.

9、根据权利要求 7所述的功率控制***，其特征在于，进一步包括： 9. The power control system of claim 7, further comprising:

计时器，用于对所述业务信道增益保持期间字段所表示的持续时间进行计时，并且在计时结束时触发所述接入终端，使所述接入终端退出所述业务信道增益保持状态。 And a timer for timing the duration indicated by the traffic channel gain hold period field, and triggering the access terminal at the end of timing to cause the access terminal to exit the traffic channel gain hold state.

10、一种网络设备，其特征在于，所述网络设备中设置有消息发送模块；消息发送模块，用于发送第一消息，其中，所述第一消息携带有业务信道增益保持期间字段； A network device, wherein: the network device is provided with a message sending module; the message sending module is configured to send a first message, where the first message carries a traffic channel gain holding period field;

11、一种接入终端，其特征在于，所述接入终端中设置有判断模块； An access terminal, wherein the access terminal is provided with a determining module;

判断模块，用于判断接入终端接收到的第一消息中的业务信道增益保持期间字段，以确定接入终端是否需要进入业务信道增益保持状态，在确定接入终端需要进入业务信道增益保持状态时，使所述接入终端进入所述业务信道增益保持状态。 a determining module, configured to determine a traffic channel gain hold period field in the first message received by the access terminal, to determine whether the access terminal needs to enter a traffic channel gain hold state, and determine that the access terminal needs to enter a traffic channel gain hold state And causing the access terminal to enter the traffic channel gain hold state.

12、根据权利要求 11所述的接入终端，其特征在于，进一步包括： The access terminal according to claim 11, further comprising:

13、一种功率控制方法，其特征在于，包括以下步骤： 13. A power control method, comprising the steps of:

所述业务信道增益保持期间信息用于指示接收到所述第一消息的接入终端进入业务信道增益保持状态。 The traffic channel gain hold period information is used to indicate that the access terminal that received the first message enters a traffic channel gain hold state.

14、一种功率控制方法，其特征在于，包括以下步骤： 14. A power control method, comprising the steps of: