CN1250581A - Communcations terminal and method for data transmission between a communications network and a communications terminal - Google Patents

Abstract

According to the invention, the use of several narrow-band paging channels enables the data rate to be reduced thereby creating appropriate conditions for further reducing power consumption of mobile communication terminals in stand-by mode without impairing accessibility.

Description

Translated fromChinese

在通信网络和通信终端之间 传输信息的通信终端和方法Communication terminal and method for transmitting information between a communication network and a communication terminal

对于移动的通信终端来说，例如对于蜂窝式电话终端来说空闲状态下的电流消耗(当前模式)很大程度上是依赖于接收部件需要被关断多长时间。这个时间对于传统的移动无线电网络是由系统给出的。这个时间越长，能量消耗就越小，而接通下一个呼叫的平均时间(响应时间)也就越长。也就是说终端设备在空闲状态下的能量消耗保持得越小，则系统响应就越迟缓。这种形势是利用时分复用方法给出的，利用这种时分复用方法一个信号信道(即所说的寻呼信道，在GSM标准中也被表示为PCH)被划分为寻呼子信道(即所说的paging sub-channels)。不同的寻呼子信道的寻呼信息在时间上的安排是由通信网络(就是说例如，由一个基站子系统)被发送出的。每个无线终端都被分配了一个寻呼子信道。因此接收器必须只在这样一个时间间隔后被接通，在这个时间间隔中相应于寻呼子信道的信息被发射出去。于是虽然这个终端的电流消耗被减小了，但是接收器被关断时间越长，接通下一个呼叫的平均持续时间就越大。For a mobile communication terminal, eg a cellular telephone terminal, the current consumption in the idle state (current mode) is largely dependent on how long the receiving part has to be switched off. This time is given by the system for conventional mobile radio networks. The longer this time, the lower the energy consumption and the longer the average time (response time) to connect to the next call. That is to say, the smaller the energy consumption of the terminal device in the idle state is kept, the slower the system response will be. This situation is given by the method of time-division multiplexing, by which a signal channel (the so-called paging channel, also denoted as PCH in the GSM standard) is divided into paging sub-channels ( That is, the so-called paging sub-channels). The time arrangement of the paging information of different paging sub-channels is sent out by the communication network (that is to say, for example, by a base station subsystem). Each wireless terminal is assigned a paging subchannel. The receiver must therefore only be switched on after the time interval in which the information corresponding to the paging subchannel was transmitted. Although the current consumption of this terminal is then reduced, the longer the receiver is switched off, the greater the average duration of the next call being connected.

本发明是根据这样一个目标来改善的，即能量进一步减小的同时保证接通下一个呼叫的平均时间(响应时间)尽可能的小。这个任务是利用根据权利要求1得到的在通信网络和通信终端之间传输信息的方法并利用根据权利要求4得到的通信终端得以解决。The present invention is improved according to such a goal, that is, the average time (response time) for connecting the next call is kept as small as possible while the energy is further reduced. This object is solved with a method for transmitting information between a communication network and a communication terminal according toclaim 1 and with a communication terminal according to claim 4 .

当前的这个发明是基于这样一个想法，用空闲状态下的接收器的接通时间来减小数据传送率。因为一个通信终端的功率输入可以利用传输信息所采用的数据传送率被减小，则在接收期间这个方法实现了功率输入的减小。然而对于这个众所周知的方法来说在接收期间的输入功率根本不管通信终端是恰好在空闲状态还是不在，所以根据接收部件较短的接通时间只有空闲状态下的平均输入功率被减小，通过本发明可以实现接收期间空闲状态下的(瞬间)输入功率的减小。对于本发明来说接收时间(接收器的接通时间)可以比现有系统的接收时间长一些，因此接通下一个呼叫的平均时间或者能量消耗可以被减小。The current invention is based on the idea of reducing the data transfer rate with the on-time of the receiver in the idle state. This method achieves a reduction in power input during reception because the power input to a communication terminal can be reduced with the data transfer rate at which the information is transmitted. With this known method, however, the input power during reception does not matter at all whether the communication terminal happens to be in the idle state or not, so only the average input power in the idle state is reduced due to the short on-time of the receiving part, by means of this The invention enables a reduction of the (instantaneous) input power in the idle state during reception. The reception time (connection time of the receiver) can be longer with the present invention than in existing systems, so that the average time to connect to the next call or the energy consumption can be reduced.

本发明优选的其他构造在从属权利要求中给出。Preferred further configurations of the invention are given in the dependent claims.

本发明的这个思想，即通信终端在接收期间空闲状态下的输入功率通过采用一个较小的数据传送率被减小，当然也可以和一个时间上的限制或者接收时间的减小相配合，来达到进一步的节省能量消耗。通过相应参数的一个合适的选择这个接通时间平均值，空闲状态下的能量消耗以及接收机的灵敏度可以同时被改善。The idea of the present invention, that is, the input power of the communication terminal in the idle state during reception is reduced by adopting a smaller data transmission rate, of course, it can also cooperate with a time limit or a reduction of the reception time to achieve To further save energy consumption. By means of a suitable selection of the corresponding parameters for this on-time average, the energy consumption in the idle state and the sensitivity of the receiver can be improved at the same time.

依照本发明的一个实际方案可以给出很多窄带信道，这里通信终端组群中每个这样的信道在空闲状态下都是针对信息传输被分配。这种信道可以根据时间范围或频率范围或者根据其他的专业人员熟悉的方式被彼此划分开。几个这种信道或者其他的窄带信道也可以被应用于从通信终端到通信网络的信息传输。A practical solution according to the invention can provide a plurality of narrowband channels, where each such channel in the group of communication terminals is allocated for information transmission in the idle state. Such channels can be divided from one another according to time ranges or frequency ranges or according to other methods familiar to those skilled in the art. Several such channels or other narrowband channels may also be used for the transmission of information from the communication terminal to the communication network.

本发明可以借助于下述框图被解释清楚：The present invention can be explained clearly by means of the following block diagram:

图1以概略的方式给出了本发明的一个实际形式，在这个实际形式中寻呼信道被划分为多个窄带寻呼子信道，这些信道依据时间被同时采用。Figure 1 shows in a diagrammatic manner a practical form of the invention in which the paging channel is divided into a plurality of narrowband paging subchannels which are used simultaneously as a function of time.

图2以概略的方式给出本发明的一个实际形式，在这个形式中寻呼信道被划分为多个窄带寻呼子信道，这些信道有时在时间上被依次采用或者被同时采用。Figure 2 shows in a schematic form a practical form of the invention in which the paging channel is divided into a plurality of narrowband paging sub-channels which are sometimes employed sequentially in time or simultaneously.

图3以概略的方式给出了图1和图2中描述的本发明的实际形式的组合。FIG. 3 shows in a diagrammatic manner the combination of the actual form of the invention described in FIGS. 1 and 2 .

图4以概略的方式给出了一个依照本发明的通信终端的优选的实际形式。Fig. 4 shows in a diagrammatic manner a preferred practical form of a communication terminal according to the invention.

下面本发明借助于一个优选的实例以及利用框图得以详细描述。In the following the invention is described in detail by means of a preferred example and using block diagrams.

本发明设计采用一个窄带寻呼信道或者多个窄带寻呼信道，这种一个或多个信道的带宽远远小于真正的通话传输所采用的或所要求的带宽。一个可能的实现以概略的方式在图1中被给出。利用时间来设置的寻呼子信道，如果采用的是几个传统的移动无线电标准，则一个寻呼信道(PCH)被划分为窄带寻呼子信道(PSCH1，...，PSCHn)，这种子信道位于寻呼信道频率波段(PB)的不同子波段上(PSB1，...，PSBn)。这个完整的用于支配页的当前带宽(PB)被划分为n个具有相应较小带宽的子波段。The present invention is designed to adopt a narrowband paging channel or a plurality of narrowband paging channels, and the bandwidth of this one or more channels is much smaller than the bandwidth used or required for real conversation transmission. A possible implementation is given in diagrammatic form in FIG. 1 . The paging subchannels set by time, if several traditional mobile radio standards are used, a paging channel (PCH) is divided into narrowband paging subchannels (PSCH1, ..., PSCHn), such subchannels The channels are located on different sub-bands (PSB1, . . . , PSBn) of the Paging Channel Frequency Band (PB). This complete current bandwidth (PB) for governing pages is divided into n sub-bands with correspondingly smaller bandwidths.

图2给出了本发明另外一个特别有利的实际形式，在这个形式里寻呼子信道利用频率范围(f)的分隔和一个利用时间范围(t)的分隔被混合在一起。这里一个寻呼子信道通过一个频率范围(PSB)以及一个时间范围(PTS)被定义。借助于上面的描述专业人员知道了，决定本发明的哪种实际形式是有利的要根据它的质量标准(接收器的灵敏度，空闲状态下的能量需求或者接通一个呼叫到一终端设备的的平均时间，等等)来进行优选。FIG. 2 shows another particularly advantageous practical form of the invention, in which the paging subchannels are mixed with a separation in the frequency range (f) and a separation in the time range (t). Here a paging subchannel is defined by a frequency range (PSB) and a time range (PTS). With the help of the above description, the person skilled in the art knows that it is advantageous to decide which practical form of the present invention depends on its quality criteria (sensitivity of the receiver, energy requirement in idle state or the ability to connect a call to a terminal equipment). average time, etc.) to optimize.

如果这个接收器(通信终端)例如是在一个车身具有强烈屏蔽的公共交通工具中，或者在一个偏远乡村远离下一个基站并且仅传输一个具有一定意义的字符串(寻呼，短消息业务)时，对于接收灵敏度的要求就要优先于对系统响应时间的要求。本发明对于这种不同的情况可以有非常灵活的反应，在这里一个通信终端可以根据应用场合给出合适的寻呼子信道，该信道的特性尽可能的符合这个环境。在图3中概略的描述了一个这种方案。这里寻呼信道是由不同的寻呼子信道组合在一起，这种寻呼子信道是根据其所占据的时间范围大小来划分成各个部分。根据前面的描述可以知道，寻呼子信道也可以根据其频率范围大小(也就是说根据带宽)来划分。举例来说通过基本寻呼子信道的集成可以实现宽频的寻呼子信道。因此通信终端可以根据由网络规定的数据传输率和当前接收条件来优化在空闲状态下其能量消耗。此外通信终端可以使其应答依赖于传输条件的寻呼呼叫以及呼叫方式(语音，数据，SMS)。If this receiver (communication terminal) is e.g. in a public transport vehicle with a strongly shielded body, or in a remote village far away from the next base station and only transmits a meaningful character string (paging, short message service) , the requirements for receiving sensitivity will take precedence over the requirements for system response time. The present invention can have a very flexible response to such different situations. Here, a communication terminal can provide a suitable paging sub-channel according to the application, and the characteristics of the channel conform to the environment as much as possible. One such scheme is schematically depicted in FIG. 3 . Here, the paging channel is composed of different paging sub-channels, and the paging sub-channels are divided into various parts according to the size of the time range they occupy. According to the foregoing description, it can be known that the paging sub-channel can also be divided according to its frequency range (that is, according to bandwidth). For example, a wide-band paging subchannel can be realized through the integration of basic paging subchannels. The communication terminal can thus optimize its energy consumption in the idle state according to the data transmission rate specified by the network and the current reception conditions. In addition, the communication terminal can cause it to answer paging calls and call types (voice, data, SMS) depending on the transmission conditions.

本发明可以有其他的实现形式，寻呼信道的划分适合于通信网络中瞬间增益的子信道，也就是说适合小区。The present invention can have other implementation forms, and the division of the paging channel is suitable for the sub-channels of the instantaneous gain in the communication network, that is to say, suitable for the cells.

一个依照前面提到的发明的通信终端是通过使其接收带宽符合它被给定的寻呼子信道的特性这种方法来控制的。于是在优选方式中设计了一个数字滤波器，其参数(也就是说，例如其滤波系数)在跃变到其他接收带宽时能够毫无问题地被改变。这种数字式滤波器例如可以借助合适的软件方法来实现，这种软件是运行在合适的信号处理器中。A communication terminal according to the aforementioned invention is controlled in such a way that its reception bandwidth conforms to the characteristics of the paging subchannel to which it is given. In a preferred manner, a digital filter is then designed, the parameters of which (that is to say, for example its filter coefficients) can be changed without problems when changing to other receive bandwidths. Such a digital filter can be realized, for example, by means of suitable software which runs in a suitable signal processor.

利用分配给每个终端设备组的寻呼子信道带宽的减小，自然地获得了最大数据传输率的减小。鉴于由此终端设备的输入功率也同样减小则上述方法正是所希望的。但是利用较小的数据传输率传输一个确定的数据量要求相应较长的时间。从这一点来看下面是特别有利的，即构造一个利用寻呼信道或者其子信道来传输的信息，以便于能够根据其分配的寻呼子信道的发送时间的碎片识别出一个刚好没有被呼叫的终端，使其不被呼叫。在这种情况下这个终端可以关断接收直至其被分配的寻呼子信道的下一次(或者稍后的)复位。根据这种方式能量消耗被进一步的减小，而不会减小响应时间。A reduction in the maximum data transmission rate is naturally obtained with a reduction in the bandwidth of the paging subchannel allocated to each terminal device group. This is desirable in view of the fact that the input power of the terminal equipment is likewise reduced as a result. However, a correspondingly longer time is required to transmit a certain data volume with a lower data transmission rate. From this point of view, it is particularly advantageous to construct a message transmitted using the paging channel or its sub-channels, so that it is possible to recognize a message that has just not been called based on the fragmentation of the transmission time of its assigned paging sub-channel. terminal so that it is not called. In this case the terminal can switch off reception until the next (or later) reset of its assigned paging subchannel. In this way the energy consumption is further reduced without reducing the response time.

一个这样的构造可以如下来实现，即在寻呼子信道发送时间开始时构造一个所有被呼叫终端的清单。然后—如果重要的话—相关设备的其他信息被首先发送出去。依照本发明一个其他的实现形式也可以处理一个带有所呼叫用户的用户号码的传输。因此在相应的通信终端中给出了用于实现“实时”比较的方法；对于标志的第一个不匹配来说接收器被关断并且在优选方式下首先重新接通下一个用户号码的传输。在这里用户号码的传输在优选方式下是根据确定的时间标度线来执行的。Such a configuration can be realized by creating a list of all called terminals at the beginning of the paging subchannel transmission time. Then—if it matters—other information about the device is sent first. According to a further embodiment of the invention, a transmission with the subscriber number of the called subscriber can also be processed. Therefore, in the corresponding communication terminal, a method is provided for carrying out the "real-time" comparison; for the first mismatch of the sign, the receiver is switched off and preferably the transmission of the next subscriber number is first switched on again . The transmission of the subscriber number here is preferably carried out according to a defined time scale.

数据传输率的减小就象前面描述所指出的那样可以被用于减小输入功率以及因此减小能量消耗。通过在寻呼子信道较短的时间标度线上的确定也可以实现减小接通一个呼叫的平均时间。最后也可以利用寻呼子信道带宽的减小来提高接收器灵敏度。通过窄带寻呼子信道的带宽，数据传输率和时间分度线的一个合适选择并且通过相应通信终端接收器的合适配置借助前面的描述下面情况是有可能的，即如果有这种情况可实现关于输入功率，时间上的可实现性以及接收灵敏度的一个相反要求之间的所希望的调节。The reduction in data transmission rate as indicated in the previous description can be used to reduce input power and thus reduce energy consumption. A reduction in the average time to connect a call can also be achieved by specifying on a shorter time scale for the paging subchannel. Finally, the reduced bandwidth of the paging subchannel can also be used to improve receiver sensitivity. By means of the bandwidth of the narrowband paging subchannel, a suitable selection of the data transmission rate and the time scale and by a suitable configuration of the receivers of the corresponding communication terminals, it is possible with the aid of the preceding description, that is, if this is possible With regard to the input power, the desired adjustment between the temporal realizability and the opposing requirements of the receiver sensitivity.

终端设备输入功率的减小利用较小的数据传输率例如通过在接收级减小无功电流或者通过关断所有的放大块来实现。如果接收器灵敏度被希望达到很高，则例如通过提高接收级的无功电流或者通过传输数据的冗余代码得以实现。通过这种或者同样效果的方法组合每个希望的预定目标的组合就被实现。A reduction in the input power of the terminal is achieved with a lower data transmission rate, for example by reducing the reactive current at the receiving stage or by switching off all amplification blocks. If a very high receiver sensitivity is desired, this is achieved, for example, by increasing the reactive current of the receiver stage or by redundant coding of the transmitted data. Combinations of each desired predetermined object are achieved by this or an equally effective combination of methods.

Claims (11)

Translated fromChinese

1.用于在通信网络和通信终端之间传输信息的方法，这里通信终端处于一个空闲状态，其特征在于，采用了处于空闲状态的数据传输率，这种数据传输率与空闲状态以外信息传输的数据传输率相比较是小的。1. A method for transmitting information between a communication network and a communication terminal, where the communication terminal is in an idle state, characterized in that a data transmission rate in the idle state is used, which is comparable to information transmission outside the idle state The data transfer rate is relatively small.2.根据权利要求1的方法，其特征是，采用多个窄带信道(PSCH)，这里通信终端组的这种信道被分配给空闲状态下的信息传输。2. The method as claimed in claim 1, characterized in that a plurality of narrowband channels (PSCH) are used, wherein such channels of the group of communication terminals are allocated for information transmission in the idle state.3.根据权利要求2的方法，其特征是，含有其他窄带信道以从通信终端到通信网络传输信息。3. A method according to claim 2, characterized in that other narrowband channels are included to transmit information from the communication terminal to the communication network.4.根据权利要求2或3之一的方法，其中，对于不同的信道设置了不同的频率范围(PB1，...PBn)。4. The method as claimed in one of claims 2 or 3, wherein different frequency ranges (PB1, . . . PBn) are provided for different channels.5.根据权利要求2或3之一的方法，其中，信道是通过频率范围以及通过时隙被确定。5. The method according to one of claims 2 or 3, wherein the channel is determined by frequency range and by time slot.6.根据权利要求5的方法，其中，频率范围和/或时隙的大小可以区别于不同的信道。6. A method according to claim 5, wherein the frequency range and/or the size of the time slot can be differentiated for different channels.7.具有空闲状态的并且在空闲状态下用于从通信网络(KN)接收信息的装置(EM)的通信终端(KE)，其特征是，在空闲状态下接收期间的数据传输率比较于空闲状态以外接收期间的数据传输率是较小的。7. A communication terminal (KE) having an idle state and a device (EM) for receiving information from a communication network (KN) in the idle state, characterized in that the data transmission rate during reception in the idle state is compared to that in the idle state The data transfer rate during reception outside the state is small.8.根据权利要求7的通信终端，其特征是，空闲状态下接收期间的输入功率比较于空闲状态以外接收期间的输入功率是较小。8. The communication terminal according to claim 7, wherein the input power during reception in the idle state is smaller than the input power during reception other than the idle state.9.根据权利要求7或5之一的通信终端，其特征是，在空闲状态有一个较高的接收器灵敏度。9. Communication terminal according to one of claims 7 or 5, characterized in that there is a higher receiver sensitivity in the idle state.10.根据权利要求7，8或9之一的通信终端具有把信息发送到具有数据传输率的通信网络的装置(SM)，该数据传输率比较于空闲状态以外接收期间的数据传输率是较小的。10. According to claim 7, the communication terminal of one of 8 or 9 has the means (SM) that information is sent to the communication network with a data transmission rate that is relatively low compared to the data transmission rate during reception outside the idle state. small.11.根据权利要求7到10之一的通信终端，具有11. Communication terminal according to one of claims 7 to 10, havinga)根据确定的时间分度线上的时刻在空闲状态接通接收装置(EM)的装置(ONM)，a) the device (ONM) of switching on the receiving device (EM) in the idle state according to the moment on the determined time scale,b)用于比较接收到的标志和用户号码标志的装置(CM)，以及b) means (CM) for comparing the received identity with the identity of the subscriber number, andc)一旦当这种比较得出了一个偏差的时候，用于关断接收装置直到该时间分度线下一个时间的装置(OFFM)。c) A device for switching off the receiving device until the next time on the time scale (OFFM) as soon as the comparison yields a deviation.

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