The solution unnecessarily high energy consumption in mobile stations of mobile telephone system

 

(57) Abstract:

Proposed solution: an unnecessarily high energy consumption of the mobile stations included in the digital mobile telephone system with time multiplexing. In idle mode, each of the mobile stations typically proslogium only every N-th time interval of the channel, which, among other things, is intended to send a message retrieval call, that is, for example, the channel control mode separate groups. The technical result is to reduce the time for the communication in the system. This can apply to so-called advanced search call, in which for example the time interval N, containing information instructing mobile stations to listen to additional time interval, for example the time interval N + 2. In accordance with the invention the advanced search call can be widely applied to the gain in time and consequently increases the power consumption, if it is used as follows: set the share corresponding to the maximum value part of the message retrieval call, which may be transmitted in reago call, which in each individual case depends on whether the advanced search call whether additional time interval of space, exceeded the total number of messages with the advanced search call. 4 C.p. f-crystals, 4 Il.

The present invention relates to a method for removing unnecessary high energy consumption of the mobile stations, which are part of the digital mobile phone system with time multiplexing, in which each mobile station in the [blank] the listening mode is usually only every N-th time interval of the channel, which at least partly intended to send a message retrieval call mobile stations, such as channel General uprawnienia in split groups, and which has the ability to allow each such time interval contained the information that imposed the least mobile stations to listen to the next time interval, i.e., additional time interval mentioned channel, and this additional time interval occurs after a predetermined number of time intervals.

Prior orovich stations, included in telephone systems, as low as possible. This is particularly true in regions in which is located a relatively large number of manual stations, for example, so-called pocket phones, since the stations of this type have a limited capacity of batteries. Big cities are a classic example of the regions in which is located a large number of manual stations. In digital systems operating in the split mode groups, the group of the mobile stations when in the [blank] mode will be such as to listen exclusively 18-th time interval of channel management. This channel is used to send messages intended for search and call of the mobile stations (system messages personal call), and messages relating to the appointment of channels (messages about immediate assignment). The type of reception used in the idle mode described above is generally referred to as DRX, which means intermittent reception.

Each message transmitted on the channel of the overall management of the group of mobile stations, contains information the section called "search mode call". This section contains information on the management, to the General management. Under the regime of the normal search call" refers to the above mode discontinuous reception, i.e. must listen only every N-th time interval, such as interval number N. Under "advanced search mode call" refers to a mode where each listening interval should listen to the following alternating time interval, i.e. for example the time interval N + 2.

When using advanced search call sometimes it is possible to transmit the message retrieval call, which was not designated in the standard time interval, over the next alternate time frame. If this turns out to be possible only due to the presence in this time interval the queue to send messages about the purpose of the channel and the standard message retrieval call. Moreover, the messages about the purpose of the channel is very often given priority in relation to the message retrieval call. Advanced search call is typically reduces the time to establish the connection, especially when the number of search messages call unevenly distributed between different temporary the x stations because there is a need to listen twice more time intervals than in the normal search call. When the exchange channel common control visokointensivne almost at all time intervals, the time spent in the queue when using advanced search call will be reduced significantly despite the increase in energy consumption.

Disclosure of the invention.

The object of the present invention is a method that will avoid an unnecessarily high energy consumption of the mobile stations, which are part of the mobile telephone system of the type indicated above. This is achieved by deciding each individual case in relation to whether to use the advanced search call, given the gain in time during the communication, and the growth of energy consumption. This is achieved, first, by deciding on the share, which corresponds to the maximum percentage of message retrieval call, which can be transferred to the advanced search call. This share mainly depends on the geographical region in which it is located mobile station, Then the solution in each case taken the first place in an additional time interval, and was or was not exceeded the above-mentioned proportion. Distinctive features of the invention are set forth below in the claims.

The invention is further explained in the description of specific variants of its implementation and the accompanying drawings, in which Fig. 1 and Fig. 3 depict the time frame in which are indicated by different time intervals, and Fig. 2 and Fig. 4 algorithms corresponding to the first and second variants of the claimed method.

The best variant embodiment of the invention.

Below is a detailed description of two possible embodiments for example, the system operating in the split mode groups. From the foregoing it is obvious that the time required for communication with the mobile station, can sometimes be reduced by using advanced search call. This, however, will increase energopotrebleni this station, as well as a group of mobile stations that are in idle mode and also listen to the same time interval. It should be noted that the invention can be included in the software base stations.

Below is the description of the first of the possible embodiments with reference to Fig. 1 th frame is divided into time intervals and the drawing shows the time intervals 1, 2, 3, N and N + 2. Here is an example implementation of the invention is intended to explain how to reach a decision about the use or non-use of advanced search call in relation to time interval number n

Next, with regard to the algorithm shown in Fig. 2, illustrates the procedure provided for in those cases when it should be used the advanced search call.

The first step of the procedure (see unit 11) is the decision on the share, which determines the maximum value part of the message retrieval call, which can be transferred to the advanced search call. The size of this fraction depends on the power consumption of the mobile stations, respectively, in different geographic regions, it may be different. It is advisable to choose this share so that the low power mode current would be a higher priority in relation to the speed of communication, for example in large and medium cities, which is likely a relatively large number of stations with manual control. At the same time and regions with low density of population, where presumably there are relatively few stations with manual mode low compatible. Thus, this percentage should be higher in regions with a low population density compared to large and medium cities.

In practice, the decision about the size of this share may be taken by the operator controlling the mobile telephone system, or may be implemented in the form of parameter preset in the system for different geographical regions.

The next step in the procedure is that set, whether advanced search call (see box 12). This need will depend on the number of search messages call and the number of messages on the appointment of channels that are queued for transmission in the considered time interval, i.e. the time slot number N. In the case of message retrieval-call in each time interval-set the priority, while messages about the assignment of the channels are placed in a separate queue, which is common to all mobile stations. As mentioned earlier, messages about the purpose of the channel very often take precedence over the messages of the search call.

On the third step of the procedure is established, there is or there is no free space in the trail which will depend on how many messages search call and messages about the purpose of the channel are queued for transmission in this time interval.

On the fourth step of the procedure is established, whether there was exceeded share messages with advanced search challenge (see box 14). This can be achieved in several ways. For example, to apply the advanced search call may be counted so-called moving average when the average value is calculated for a predetermined number of most recent previous messages on the considered time interval. The average value is then compared with the received value and produces a decision exceeded this value or not.

Alternatively, the adoption of the decision on the excess of its share messages with advanced search call can be carried out by the so-called method of "leaky bucket". Every time there is a specified time interval, the counting value that belongs to this interval, will either increase or decrease depending on, used, or no advanced search call. The counting value is compared with a threshold value in order to work out what that method was applicable for different values of the accepted shares, the step size with which there is a change in the counting values in one direction depends on the value of the accepted shares. This allows you to use the same threshold for all possible received share messages with advanced search call.

As can be seen from the algorithm (see unit 15), the decision to use the advanced search call for the time interval N is accepted if both of the following conditions:

- there is a need to use mode with the advanced search call (step two above);

- at time interval N + 2 must decrease the free space (step three above);

- adopted the share messages with advanced search call must not be exceeded (step four in the above-described procedure).

As follows from the algorithm (see block 16), the normal search call is used when any of the questions specified in the blocks 12 and 13, received a negative response or when the question posed in block 14, received a positive response.

Mobile stations which carry out listening in additional time in animate into account information section "search mode call" this additional time interval, because this section is intended for those stations that are listening time interval in the normal search call.

The following is a description of a second example implementation of the invention using Fig. 3 and 4. Fig. 3 shows a time frame that is similar to the time frame shown in Fig. 1, except that here also the time interval N + 4. In Fig. 4 presents an algorithm, which in General corresponds to the algorithm shown in Fig. 2, but which, however, also contains two additional functional unit. Those blocks in Fig. 4, are shown in Fig. 2, are identified as before. The second implementation of the invention is based on the assumption that sometimes it makes sense to use the advanced search call even when additional time interval, i.e. the interval N + 2, there is no free space.

Originally performed three procedural step (see units 11 - 13), which coincide with the procedural steps one through three above, i.e., the steps of establishing a share messages with advanced search call that establishes whether the mode is the initial place.

When the third procedural step reveals that at time interval N + 2 there is no free space on the fourth procedural step (see unit 17) is there or not there is free space on the time interval that appears two time interval later, i.e. at time interval N + 4 (see also Fig. 3).

If the time interval N + 4 free space, the message for which there was a place in the time interval N can be transmitted in time interval N + 2 given the fact that the message is queued for transmission in the time interval N + 2 can be moved in the time interval N + 4.

In order that the message has been moved from the temporary interval N + 2 in time interval N + 4, it is necessary that not all messages that must be transmitted in the time interval N + 2 were a priority, for example, messages about the purpose of the channel. Accordingly, in the fifth procedural step is detected, priority or non-priority message is detected in the queue to the time interval N + 2 (see box 18).

In accordance with dannemoine with the advanced search call just as this was done on the fourth step (see block 14) of the first variant implementation of the invention.

In this implementation the decision to use the advanced search call is achieved if both of the following conditions: there is a need to use mode with the advanced search call (step in the procedure); at time interval N + 4 has a free space (step four in the procedure corresponding to the second variant of realization); in the queue to the time interval N + 2 detected non-priority message (step five in the procedure corresponding to the second variant of realization); adopted the share messages with advanced search call has not been exceeded (step six in the procedure, corresponding to the second version of the application).

As follows from the algorithm (see block 16), the normal search call is used when one of the questions formulated in blocks 12, 17, and 18, was received a negative response, or when the question posed in block 14, there was obtained a positive response.

It should be understood that the invention is not limited to the above-described two choices re ahow procedure may be modified in various ways. Typically, in order to prepare a place for messages that could not get a place in the time interval N, it is also possible to inspect, or has no free space, not only in time slots N + 2 and N + 4, but also in the time interval N + 6, and so on, the Application of the invention is not limited to use in systems with group separation, but can be applied in other mobile phone systems.

Fig. 2:

11 to decide on the percentage of messages with the advanced search call;

12 - is There a need in the advanced search call?

13 - is There a free place at time interval N + 2?

14 - Exceeded the adopted share messages with advanced search call?

15 - Select the mode with the advanced search call.

16 - Select the mode from the normal search call.

Fig. 4:

11 to decide on the percentage of messages with the advanced search call;

12 - is There a need in the advanced search call?

13 - is There a free place at time interval N + 2?

14 - Exceeded the adopted share messages with advanced search call?

15 - IN THE P CLASS="ptx2">

17 - is There a free place at time interval N + 2?

18 - is There a non-priority message in the time interval N + 2?

1. The solution unnecessarily high energy consumption in mobile stations, mobile digital telephone system with time multiplexing, namely, that each mobile station in the idle mode listening on every N-th time interval of the channel is made in the form of a channel shared control in split groups, intended at least partially to send messages, search the call of the mobile stations, and in which you want each time interval N contained control information instructing mobile stations to listen to any of the following time interval N+2 mentioned channel that appears after a specified number of time intervals, characterized in that the solution to the given time interval N to contain control information is received after the selected portion of the message corresponding to the maximum value for part of a message that contains control information is determined by the need of keeping in framenames free time interval, determine whether there was exceeded share messages with control information for the time interval N, and decide from that in the time interval must contain control information after discovered the need for this, it shows the free space in the time interval N+2, and determine what proportion of messages with control information has not been exceeded.

2. The method according to p. 1, characterized in that the finding of excess share messages determine by counting the value of the moving average of the number of messages and comparing the average value with the specified shares.

3. The method according to p. 1, characterized in that the establishment of the excess shares is determined by calculation according to the method of "leaky bucket" and comparing the counted value with this share.

4. The method according to p. 1, wherein when an additional time interval N+2 is not detected free space additionally when deciding on the need in the time interval to have control information to determine whether it found a free place in one time interval N+4 channel, and the second additional interval appears after a pre-defined to the contains whether the first time interval N+2 non-priority message, and decide that the time interval N must contain control information when when establishing the necessary content in the time interval control information detected free space in the second extra time period N+2, and when at the same time in the time interval N+2 found one non-priority message, and when observed simultaneously exceeding the accepted share messages with control information.

5. The method according to any one of paragraphs. 1-4, characterized in that the received portion of the message control information is defined by the geographic region in which are portable mobile stations, the percentage of messages is higher in those regions where the likely placement of a relatively small number of portable mobile stations compared to the regions in which many portable mobile stations.

 

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EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 7 dwg, 1 tbl

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