The methods and apparatus in a telecommunication system

 

The invention relates to a device for radio communication, in particular to a method and device for implementing the method synchronize the communication is divided into frames of data across the asynchronous base station in the cellular system. The technical result is to minimize the synchronization error between frames of information that are sent to individual mobile station from two or more asynchronous base stations or sectors, minimizing needs buffering asynchronous base stations when receiving frames of information, as well as minimizing the average delay of the signal passing back and forth that occurs in the communication system mdcr in cellular radio. The technical result is achieved by generating certain States of the counter system at the Central node in the system - the control node of the radio network connected to one or more base stations, and the current selection state of counter systems are regularly sent from the control node to the adjacent base stations to synchronize each local frame counter with the counter state personnel system, which acts as a reference to the numbering of frames in the system Soto the AI communication is divided into frames of data across the asynchronous base station in the cellular system, for example, the system mdcr (Multiple Access, Code-Division multiplexing). The synchronization method is carried out continuously, but especially at connection establishment and during the execution of a "soft" switch (transition of the mobile station from one mobile cell to another during a call).

This invention is also directed to a device for implementing the above method.

The level of technology Today, there is increasing interest in using mdcr or systems with spread spectrum for commercial applications. Some examples include digital cellular radio, land mobile radio, satellite systems and in-house and external personal networks mentioned here together as a cellular system.

Mdcr allows the signals to overlap in both time and frequency. Thus, the signals mdcr share the same frequency spectrum. In the frequency range or period of time, the multiple access signals are superimposed one upon the other.

There are a number of benefits associated with the communication mdcr. Limits on throughput cell-based systems mdcr wide. This is a result of the particular characteristics and reuse the same frequency spectrum in passing interference.

In principle, the system mdcr stream of data that must be transmitted is superimposed on the data stream at a much greater rate, known as the sequence signature. Typically, the data sequence signatures are binary, providing a stream of bits. One way to generate this sequence signature is using PN-process (pseudocode), which is arbitrary, but may be a dedicated receiver. The flow of data and high-speed bit stream sequence signatures are combined by multiplying these two streams of bits to one another on the assumption that the binary value of these two streams of bits represented by the values +1 or -1. This Association signal with a higher bit rate stream data with a lower bit rate is called the extension of the signal flow information. Each stream of data, or channel, is assigned a unique extension code. The relationship between the bit rate of the sequence signatures and bit rate information is called the coefficient of expansion.

Many signals encoded information fashion is carried out as a complex signal in the receiver. Each of the coded signals, and also related to noise signals override all other coded signals as frequency and time. If you are using a registered receiver, then this composite signal is mapped to one of the unique codes, and the corresponding information signal can be selected and decrypted.

In the system mdcr, also known as PP-mdcr (mdcr direct sequence), to distinguish it from mid-mdcr (mdcr with the spike frequency), "data bits", mentioned above, can also be encoded bits, and the code is a code block or code convolution. One or more information bits can form the symbol data. The sequence signatures or mask scrambling speech can be much longer than one code sequence, in this case, the code sequence is added suppositionally sequence signatures or mask scrambling speech.

In the cellular system mdcr each cell label has several blocks of the modulator - demodulator, or modem extended range. Each modem comprises a digital modulator transfer extended spectrum, the base station BS can be assigned to the mobile station as needed to establish communication with the designated mobile station MS. In many cases, is available for use with many modems, while others of them may be used in connection with the respective mobile stations. For a cellular communication system mdcr used the soft-switching scheme, in which the new modem base station assigns the mobile station, while the old modem base station continues to serve the call. When the mobile station is located in the transition area between the two base stations, it supports communication with both base stations. Similarly, if one base station is responsible for more than one geographic sector, switching can be performed between different sectors belonging to the same base station.

When the connection of the mobile station is established with the new base station or a new sector, such as mobile station has a good relationship with the new cell by cell or sector, then the old base station/modem stops servicing this call. This soft switch is essentially a switching function performed before hanging up. The mobile station determines the best but is thee preferably, to the mobile station initiated the request to the switch and set a new base station, the selection of the switching process can be done as in conventional cellular telephone system in which a base station determines when switching may be appropriate, and through the system controller requests the neighboring cell of the cell or sector, so they looked for a signal that the mobile station. The base station receiving the strongest signal, which is determined by the system controller, then take the switch.

In the cellular system mdcr each base station typically transmits a pilot carrier signal in each of their sectors. This pilot signal is used by mobile stations to obtain initial synchronization system and to provide a rough track of time, frequency and phase of the transmitted base station signal during the so-called phase synchronization elementary parcel of air. RNC (Management Node Network Radio maintains its synchronization with the PSTN (public Switched Telephone Network (PSTN).

The active set for a given mobile station is the list of sectors through which the communication of the mobile station. Dobavljam, conventional switching from the first base station (serving the first sector to the second base station (serving the second sector) can be defined as the active set before switching, containing only the first sector, and after switching, containing only the second sector. Switching from the first to the second base station can be defined as the active set, initially containing several sectors, including the first sector, but not the second sector, and after switching the active set containing several sectors, including the second sector, but not the first sector. Further, the switching may be performed either between identical frequencies, the so-called vnutrirezonatornoe switch (inside the RF-HO), or between different frequencies, so-called mejoramiento switching between RF). The exact definition of switching, however, is irrelevant for the present invention, as the invention relates only to the adjustment of the active set, in particular adding one or more sectors in the active set.

The active set may be different for uplink communication channel from the mobile station to the base) and downlink (channel Ott many different sectors of the same base station for connection uplink connection, and only one of these sectors for the corresponding connection downlink.

During macronutrient active set contains sectors that are served by more than one base station. Makarasana should be used during soft-switching, while the hard switching implies that the active set never contains more than one sector during this procedure.

The radio frequency synchronization is performed by detecting and selecting the particular sequence of elementary parcels, which is associated with the most powerful carrier frequencies, adopted by the mobile station. This allows the identification of the base station "best service". The above sequence of elementary parcels refers to the system time that is used, for example, to set the transmission time of the frame of the radio interface.

In the system mdcr overlapping time intervals, as in systems MDR (Multiple Access with time Division multiplexing) is not a problem, since the mobile station transmits continuously, and thus does not need to synchronize with other mobile stations. However, when pozirovati base station in downlink (also known as a straight line).

Makarasana in the system mdcr can be achieved with synchronized base stations. The base station is usually synchronized with the digital transmission of all base stations belonging to the time scale of the overall system mdcr, which uses the timeline GPS (global Satellite Positioning System), which can be monitored UTC (Universal Coordinated Time) and synchronous with him. The signals from all base stations are transmitted in the same time.

In order to allow makarasana, the base station can be synchronized, as described above, through a common reference GPS time. Therefore, the signals transmitted from base stations that are synchronized in time. However, due to different propagation delays in the communication lines, the signals arrive at the mobile station at different points in time. Typically in systems mdcr used collecting receiver to process temporal spread, and makarasana can be considered as a temporal spread on the receiver side. The principle of collecting receiver is picking up the flow of energy from multiple paths and combine them before performed sampling bits.

Methods for continuous the 0394. Special measuring elements contain a timestamp indicating the time when the item is sent, and the amount of delay, which shows the difference between the times of transmission and reception.

The document US-A, 4894823 describes an alternative method for the temporary marking of data packets that are transmitted through a fixed communication network. The delay experienced by data packets in the network nodes, measured by inserting the values of the start time of the call in the header of each packet at the entrance to the site, and change the time values in the function the timestamp of when the packet was transmitted through this site.

The way time coordination of transmission on downstream links in the system mdcr described in document WO, A1, 94/30024. Signals to connect the individual cell call is synchronized through, first, the measurement by the mobile station, the time difference between the signal of the connected base station and the base station signal intended makarasana. This measurement, secondly, is transmitted to the network, which eventually compensates for this difference, and to synchronize the base station, so that the switching was performed where there would be no data loss during this procedure.

Documents US A, 54503 is, however, these documents do not explain, how to achieve synchronized communication between multiple base stations and a specific mobile station in spite of these delays.

According to the document WO, A1, 94/30024 known method for performing timing gear for descending lines in the system mdcr. However, there is no solution, as these transfers must be managed when the difference in delay between signals transmitted from different base stations exceed the duration of half of the data frame.

Summary of the invention the present invention therefore is to minimize the synchronization error between frames of information that are sent to individual mobile station from two or more asynchronous base stations or sectors. Asynchronous here means that resolves the phase difference between signals transmitted from at least two different base stations, and that the synchronization elements in different base stations are not synchronized with each other.

Another objective of this invention is the elimination of the need to rely on the receiver of the external reference time in each asynchronous base station to meet the requirements of synchronization during adjustment of the active napisali in asynchronous base stations, who concurrently receive frames of information from a particular mobile station.

An additional objective of this invention is to reduce the need for buffering in mobile stations and thus simplifying the design of the mobile stations.

Another objective of this invention is to minimize the average delay of the signal passing back and forth that arise in systems of cellular communication in the communication system mdcr, in particular. Under the delayed signal back and forth here refers to the total time that it takes (on average) for a hypothetical messages sent from one end to the other and back.

These tasks are solved by the present invention by generating certain States of the counter system at the Central node in the system - the control node of the radio network connected to one or more base stations. The corresponding local frame counters are generated in each base station in the system. The current selection state of counter systems are regularly sent from the control node of the radio network to its attached base stations to synchronize each local frame counter with the radio.

According to one aspect of the present invention, a method regular parcel status counter system from the Central node to its connected base stations. Each base station sets its own state of the local frame counters, so that they were all consistent with the state of the counter system. Synchronization of data packets transmitted by the base station is then performed by sending a single packet of data to the frame data, which are numbered in accordance with the state of the counter. The state counter is located in the branch connection uplink connection locally generated in each base station, and branch connections downlink, and the state of the frame counters are derived from state counter system at the Central node, which is usually the control node of the radio network.

The above method is thus characterized in that they are defined in paragraph 1 of the claims.

According to another aspect of the present invention, a method for establishing communication between the mobile station and at least one base station, based on the above method, the n channel downlink and one channel of the uplink communication. The base station (the station), in which such channels should be distributed, is defined (determined) by the measurement of the level of the pilot signal, performed by the mobile station. In General, all sectors, the level of the pilot signal which exceeds a specified threshold, are candidates for inclusion in the active set. However, the channel downlink does not necessarily have to be distributed in all sectors, and not more than one channel uplink communication in General should be appointed. Secondly, for each channel of the downlink in the active set is set to the value of the timing synchronization. The magnitude of the timing synchronization determines the shift between the common control channel downlink sector and consider the channel downlink and is chosen to result in the most uniform distribution of load over the network and radioresource in the system with respect to compounds already in action. Each base station measures at regular intervals shift common control channel downlink between its States local frame counter and a common control channel downlink D. what is the offset of the channel downlink by adding the shift to the common control channel downlink to the magnitude of the timing synchronization. And finally, is assigned to a specific frame number of each frame of data at each respective channel and downlink. The frame number is shown in which the frame data must be transferred to a separate data package, which is taken from the Central node. Data frames are numbered according to the following rule. The initial data frame, beginning with the offset value of the channel downlink after the current state of the local frame counter, sets the frame number is equal to the current state of the local frame counter. Local frame counter, on average, increases with the pulse frequency of the time signal, which corresponds to one pulse to the duration of a data frame. However, thanks to the facilities of the local frame counter according to the adjustments from the state of the counter system, the local frame counter may have a pulse frequency of the time signal, which is either slightly higher or slightly lower than one pulse to the duration of a data frame. Subsequent frames in the receive data frame numbers according to their order relative to the initial frame data.

The method of connection according to this aspect of the invention, therefore, is characterized by the surveillance method of beginning communication through the at least one second sector with a particular mobile station, already communicates through at least one first sector, by using the above-described synchronization method. First, the mobile station measures the offset of the frame between the channel downlink in the active set and the shared control channel downlink sector a candidate for ASU. Secondly, the offset frame is reported to the Central node. Thirdly, the second sector is added to the active set. Fourth, calculate the magnitude of the timing synchronization and the amount of displacement of the channel downlink channel downlink in the second sector. Fifth, the offset between frames of data that must be transmitted on the channel downlink in the second sector, and a common control channel downlink for this sector is set equal to the value of the timing synchronization. Finally, each data frame in the channel of downlink second sector is given a specific frame number. This is done by assigning the initial data frame, which, starting from the state of the local frame counter in the base station serving the second sector, plus the amount of displacement of the channel downlink, and helped it become the Chica frames in the base station, serving the second sector. Each subsequent data frame is then assigned an integer increment the start number, which is equal to the order of each respective data frame relative to the initial frame data.

The way to begin communication through an additional sector, when the communication is performed through the first sector, according to this aspect of the invention, therefore, characterized by the fact that defined in paragraph 11 of the claims.

The device according to the invention for exchanging divided into frames of information in a cellular communication system includes one or more Central nodes plus one or more base stations. The Central node, which is usually the control node of the radio network, contains in turn the main synchronization unit, the main control unit and the switch unit explode. The main synchronization unit generates a status counter system, which is sent to the base stations that are attached to the Central node. The main control unit is the main unit to a Central site. This unit, for example, determines when to perform ASU. In addition, it calculates the value of the timing and synchronization offset the ligature. The switch unit explode responsible for handling concurrent connections with the mobile station through more than one base station.

The above-mentioned device according to this invention, therefore, characterized by the fact that determined from paragraph 22 of the claims.

The present invention thus offers a solution for adjustment of the active set (e.g., in conjunction with the implementation of soft switching) in a cellular communication system that contains the asynchronous base station, without the need for GPS receivers in any base station.

The proposed solution also ensures synchronization while establishing connection to the asynchronous base station.

Such a small synchronization errors lead to low average values of the delay signal back and forth in the system and allow the data connection between the control node of the radio network and the base stations are asynchronous, such as ATM connections.

It also ensures that there will be bugs slip personnel in connection either in downlink or in the uplink communication. Moreover, the need for buffering can be reduced as in the base strut to be made more simple and simple collecting receivers.

Description of figures Fig.1 shows a previously known system of cellular communication mdcr attached to a fixed communication network.

Fig.2 illustrates a previously known method of synchronization of the radio interface.

Fig.3 explains the problem of the sliding frame, which may occur in the method shown in Fig.2.

Fig. 4 illustrates a method of synchronization of the radio interface according to one of embodiments of this invention.

Fig. 5 shows a block diagram according to the claimed method synchronization asynchronous base stations.

Fig. 6 shows a block diagram according to the exemplary embodiment of the claimed method of establishing a connection in a cellular communication system.

Fig. 7 shows a block diagram according to the exemplary embodiment of the claimed method of beginning communication over the second sector during the communication through the first sector in the system of cellular communication.

Fig. 8 shows the device according to the embodiment of this invention.

The invention will now be described in more detail using preferred embodiments and with reference to the accompanying drawings.

Preferred examples of the implementation of Fig.1 shows essentially the previously known system cellular radios the communications network 10 may be any type of network, which is adapted to the type of data through the system of cellular radio mdcr 100. If, for example, packet data is transmitted in the system mdcr 100, the fixed network 10 preferably is a network PSPDN (Packet switched public Network, PCAP), a network operating according to IP (Internet Protocol), ATM network or transmission network frames.

The host MSC (Switching Center Services mobile subscribers, CXP) connects the system of cellular radio mdcr 100 with a fixed communication network 10. The host MSC can be, in particular, the so-called Switching Center Services mobile subscribers station mates, if he has a connection with a communication network outside the system of cellular communication mdcr 100. The host MSC through, for example, the ATM connection is additionally in contact with the nodes of the control network RNC1 and RNC2, each of which is attached to one or more base stations BS1, BS2 and BS3-BS5 respectively through separate connections ATM. Can also be special connection 110 between nodes control radio RNC1 and RNC2, which makes it possible to synchronize one control node of the radio network from another mode, master - slave, for example, RNC1 is the primary and RNC2 is the slave. Or all the control nodes for the specified geographic areas, the so-called sectors s11-s16, s21-s26, s31-s36, s41-s46 and s51-s56, respectively.

A sector is identified by at least one common control channel downlink, which differs from all other nearby channels or a specific sequence of elementary parcels or specific sequence of elementary parcels in combination with a specific frequency. Mobile stations MS1-MS4 communicate with one or more base stations BS1-BS5 on dedicated channels. Branch downlink such connections are established via at least one channel of the downlink, and the branch uplink connection is established through a channel of upward communication line. Each sector s11-s56 in General has its own set of channels descending and ascending lines. However, the set is adaptive, so that the enabled channels are subject to change. When the mobile station communicates with the base stations through more than one sector, it should, therefore, be configured on more than one channel downlink for decoding data that is received.

The first mobile station MS1 is initially in communication with the base stantially the control node of the radio network RNC1. When the mobile station MS1 is in another sector s23, the measured pilot signal for this sector s23 increases to a level sufficient to ensure that the sector s23 became a candidate for ASU (Adjustment of the Active Set). Ie will start the communication between the mobile station MS1 and the base station BS2 via the sector s23. The mobile station MS1 measures the offset of the frame between its current channel downlink sector s24 and shared control channel downlink sector s23. The result of this measurement then through the base station BS2 is communicated to the control node of the radio network RNC1, which calculates the amount of timing synchronization. The magnitude of the timing synchronization is used to synchronize the channel downlink sector s23 channel downlink that is used by the mobile station MS1 in the sector s24. After synchronization of the two channels downlink active set for the connection with the mobile station M31 is adjusted, and starts communication with the base station BS2 via the sector s23.

It is possible that the connection through the sector s24 is disconnected before the communication through the sector s23 ended. However, this should not be the case if, for example, the mobile station MS1 again the first.

The second mobile station MS2 establishes communication with the base station BS1 in the sector s14. The second mobile station MS2 regularly performs measurement frame offset and the level of the pilot signal for the neighboring sector s14 sectors and reports these measurements to the control node of the radio network RNC1 through the base station BS1. When the measurement level of the pilot signal indicates that the communication can be more effectively carried out through another sector s21 and therefore should be continued there, the channel downlink sector s21 is, thus, easily synchronized with the current channel downlink of the mobile station MS2 in the sector s14. However, the sector s21 served by the base station BS2, which differ from the base station BS1, the service sector s14. Synchronization between channels downlink sectors s14 and s21 is also achieved by calculating the magnitude of timing synchronization in the control node of the radio network RNC1. The active set for the mobile station MS2 is adjusted from the control node of the radio network RNC1, and the relationship continues in the sector s21. Communication through the sector s14 may or may not be supported depending on what level of pilot signal measures the mobile station MS2 DL is tance MS3 can in a similar way to communicate simultaneously through more than two sectors, for example s32, s45, s51 and s56, which served more than two base stations BS3-BS5. In this case, when all the base stations BS3-BS5 attached to the same control node of the radio network RNC2, the synchronization channel downlink that is used for communication may be performed according to the method described above. The exact sequence in which the relationship begins and ends in each relevant sector s32, s45, s51 and s56, no matter for how synchronization, and is only the result of measurement of the level of the pilot signal relative to a predetermined threshold value to perform the ASU. Thus, the mobile station MS3 is able to communicate across all sectors s32, s45, s51 and s56 during part of the call, during the call or periodically, only through one or more sectors any combination of them.

If the measurement level of the pilot signal communicated by the mobile station MS4, shows that communication must be initiated through the base station BS3, which is connected to the control node of the radio network RNC2 different from the control node of the radio network RNC1 is attached to the currently used base station BS1, then it is essential that the Uch is the channels in the downlink. This synchronization requires Central standard time. This can be done in many alternative ways. One way is to place the generator reference time in each node of the control network RNC1, RNC2 who look upon it, that the synchronization signals generated by all the nodes of the control network RNC1, RNC2 in the cellular communication system 100, are in phase with each other. Another way is to have some (or all) nodes in the control network RNC1, RNC2 synchronized mode master - slave from the Central node in the system 100, such as the switching center services offered to the mobile users of the gateway GMSC or special main control node of the radio network. Generator reference time preferably consists of a receiver GSP, but he may, of course, any device to specify a time that is sufficiently accurate, such as an atomic clock.

In Fig. 2 shows a previously known method of synchronization of the radio interface relative to ASU. The mobile station in the first sector carries out the exchange of data frames in the first channel of the downlink DCH1, for example, receives data packets in frames mode data synchronize is the control channel downlink CDCH1.

When the measured value of the level of the pilot signal indicates that must be fulfilled ASU, the mobile station receives an indication from the control node of the radio network to measure the offset Of12frame between its current channel downlink DCH1 and the second common control channel downlink CDCH2 for the second sector, which is a candidate for the active set. The measured offset value Of12frame inform the control node of the radio network, which computes the value of the second timing synchronization TA2 by subtracting the offset value Off12frame of duration Tfdata frame, i.e. TA2= Tf-Of12. After that, the value of the second timing synchronization TA2 is set to communicate on the second dedicated channel DCH2 in the second sector. Thus, ASU is achieved when synchronization. ASU means in this case that the second sector is added to the active set, then communication begins in the second dedicated channel DCH2.

Fig.3 shows aspects of synchronization is known solutions, where the set of data packets DP(1) DP(4) is sent from the host control RNC radio network to the first and second base stations BS1 and BS2, respectively. The first copy of the set of packages is using the channel downlink DCH1 to a specific mobile station. The second copy of the set of data packets DP(1) DP(4) arrives at the second base station BS2 after the second transmission time t2. However, the dierence t2-t1 in the transmission time exceeds the duration of Tf/the 2 halves of the frame data. Therefore, the base station BS2 having their signals more detainees than others will mistakenly send all data packets DP(1) DP(4) frames of data that are shifted in time one frame of data (or more, if t2 is longer than the duration of Tfmany data frames), the second channel downlink DCH2. A so-called sliding frame, which leads to a devastating combination of signals in the mobile station. That is, the signals sent from the first base station BS1, and the signals sent from the second base station BS2 will be in the mobile station at any given time contain data from different data packets, which typically contain inconsistent information. Consequently, the mobile station will not be able to unambiguously decode the signal by combining the packet data frames received on the selected channel DCH1 and DCH2.

The problem of sliding of the frame shown in Fig.3, solved by the present invention by generating States counter the SFC preferably sent to the base stations on a dedicated and separate connections, for example, the compounds of the ATM, to ensure a more constant delay for these signals.

Fig.4 illustrates aspects of synchronization according to this invention, when data packets are sent in data frames DF(1)-DF(4) from the control node of the radio network to the mobile station via a first sector served by the first base station BS1, which uses the first channel of the downlink DCH1, while the transmission of data frames DF(1)-DF(4) was initiated by the mobile station via the second sector served by the second base station BS2, which uses the second dedicated channel DCH2. The first and second sector associated with the first CDCH1 and second CDCH2 common control channel downlink, respectively. Both base stations BS1, BS2 measure the shift of the common control channel downlink SO, SO between their common control channel downlink CDCH1, CDCH2 and the corresponding local frame counter LFCBS1, LFCBS2. Each base station BS1, BS2 regularly informs its shift to the common control channel downlink SO, SO node control RNC radio network.

In order to maintain high accuracy synchronization with the numbering of frames, the first base article is them through your local frame counter LFCBS1synchronized first row of the local frame counter LFCBS1(n). The status of the local frame counter LFCBS1(n) quite often adjusted from the control node of the radio network to support its less shifted from the state of the counter system SFC, the duration of Tfdata frame, for example one-tenth the duration of Tfframe data.

As can be seen in Fig.4, there is a small phase shift between the first local frame counter LFCBS1and the second local frame counter LFCBS2. However, the method of the invention ensures that the data frames related to a specific connection established via the base station BS1, BS2, always synchronized with each other.

The first channel of the downlink DCH1 has the first value timing synchronization TA1 relative to the first common control channel downlink CDCH1. The first value of the timing synchronization TA1 when the connection is set, which places a particular connection optimal time to distribute the load transfer on the network resources between the base station BS1 and the control node of the radio network, as well as radiointerface.

The offset of the first channel downlink DC1 is calculated as the offset SO between the common control channel downlink CDCH1 in the first sector and the state of the first local frame counter t1(1) plus the value of the first timing synchronization TA1, i.e. DC1=SO+TA1. The offset of the first channel downlink DC1 used when numbering data frame DF(1)-DF(4). The offset compensation of the common control channel downlink SO, SO through the displacement of the channel downlink DC1 achieved fine sync numbering of frames with the States of the counter system SFC in the base station BS1.

In the first base station BS1 each data frame DF(1)-DF(4) is associated with a specific frame number t1(1)-t1(4) from the first row of the local frame counter LFCBS1(n). This numbering of the frames is carried out by assigning the number of the first frame t1(1), is equal to the current state of the local frame counter, first data frame DF(1), within a time equal to the amount of displacement of the first channel downlink DC1 the current state of the local frame counter LFCBS1(n) from the first row. Subsequent data frames DF(2)-DF(4) are numbered t1(2) t1(4) according to their order relative to Pervov the surveillance network showed the second sector should be included in the active set, the mobile station receives an indication from the control node of the radio network to measure the amount of displacement of the frame Aboutf12between its current channel downlink DCH1 and the second common control channel downlink CDCH2. The measured value Off12then communicated to the control node of the radio network, which computes the value of the second timing synchronization TA2 for the second channel downlink DCH2 as durationfdata frame minus the value of the frame offset Off12, i.e. TA2=Tf-Of12. Then the amount of displacement of the second channel downlink DC2 is set to the offset of the shared control channel downlink SO relative to the second channel downlink DCH2 plus the value of the second timing synchronization TA2 plus the coefficient of i, multiplied by the duration of Tfdata frame, i.e., DC2=SO+TA2+iTfwhere i is an integer, positive, negative or equal to zero, which is selected of such size as to minimize the modulus of the difference |DCO1-DCO2|minbetween the displacements of the first DC1 and second DC2 channels downlink. Moreover, in order edogo channel downlink DC1 can now be re-calculated as DC1=SO+TA1, i.e. the sum of the most recent offset value of the common control channel downlink SSO transmitted from the first base station BS1 to the control node of the radio network RNC1, and the magnitude of the timing synchronization TA1 for the first channel of the downlink DCH1.

As the first base station BS1 receives the status counter system from the control node of the radio network and the second base station BS2, where they generated synchronized second row state local frame counter LFCBS2(n). The second base station BS2 is also available each data frame DF(1)-DF(4) associated with a particular frame number t2(1)-t2(4), which is extracted from the second row of the local frame counter LFCBS2(n). The first data frame DF(1) within a time equal to the amount of displacement of the second channel downlink DC2 the current state of the local frame counter LFCBS2(n) from the second number, is assigned to the first t2 frame number(1). Subsequent data frames DF(2)-DF(4) are numbered t2(2) t2(4) according to their order relative to the first data frame DF(1) by increasing the frame number t2(2) t2(4) once every Tfseconds.

By setting the offset value of the second channel downlink DC2 so minimized, it is guaranteed that the number of the current frame data t1(1) of the first channel downlink DCH1 optimally aligned with a corresponding frame number data t2(1) of the second channel downlink DCH2. After the numbering of the data frames in the second channel downlink DCH2 synchronized with the numbering of the data frames in the first channel of the downlink DCH1 can be started, the transmission data frame DF(1)-DF(4) in the second channel downlink DCH2.

The corresponding synchronized numbering of frames of data, of course, runs and connections base station to the RNC in the branches ascending line, i.e., when the data packets are transmitted from the mobile station in the channel uplink communication through one or more sectors and one or more base stations. Each base station then connects the frame number to each frame of data that is transmitted from the base station to the control node of the radio network in the branches ascending line, which is equal to the frame number of the corresponding channel downlink for this particular connection.

The block buffer to the control node of the radio network writes copies of the received data packets and performs the procedure explode on the data packets, parolee described in detail later in the description, in particular, with reference to Fig.7 and 8.

In Fig. 5 shows a block diagram of the inventive method synchronize all asynchronous base stations, which are connected to a particular hub node. When the first operation 500, the variable timer t is set to zero. The current state of the counter system SFC is sent from the Central node RNC to all of its connected base stations BS in the second operation 510. At the next operation 520, the state of the local frame counter LFC in each base station is coordinated with the state of the counter system SFC. Each base station connected to the Central node RNC, measures at the next operation 530, the offset of the corresponding common control channel downlink SSO between the state of its local frame counter LFCBS1, LFCBS2and its a common control channel downlink CDCH1, CDCH2. The results of these measurements are communicated to the Central node RNC, where the calculated offset of the channel downlink. Then, at operation 540 checks whether a variable is equal to timer t a given value of T, and if so, the process returns to the first operation 500. Otherwise, the process remains in operation 540, while the variable t is not a hundred the local frame counter LFC will be adjusted from the state of the counter system SFC.

Fig. 6 shows a block diagram of an example implementation of the claimed method for establishing connection between the stationary part of the system of cellular communication and a specific mobile station MS2. When the first operation 600 appears that asks whether the connection with the mobile station in the area of responsibility of a particular Central node RNC, and if this is the case, the process proceeds to the next operation 610. Otherwise, the process returns to the first operation 600. The active set AS determined for the mobile station MS2 in operation 610. Active set defines at least one channel of the uplink communication and one channel of the downlink to the mobile station MS2 within at least one sector, which is served by a base station connected to the Central node RNC. At the next operation 620 sets the magnitude of the timing of THE synchronization channel (channels) downlink, which gives the most uniform distribution of network resources and channel, when considered in connection already existing in the system. At operation 630 then for each channel downlink in the active set is calculated AS the magnitude of the offset is the synchronization, THE. Finally, at operation 640, a specific frame number FN is assigned to each data frame DF in the channel (channels) downlink in the following way. The initial data frame DF, beginning with the offset value of the channel downlink DCO after the current state of the local frame counter is assigned a frame number equal to the next state of the local frame counter base station serving the sector. Subsequent data frames DF are assigned frame numbers FN according to their order relative to the initial frame data DF by increasing the frame number once every Tfseconds.

A block diagram of an example implementation of the claimed method of beginning communication through the second sector from the mobile station already communicating through the first sector, is shown in Fig.7. This initiating communication through an additional sector is equivalent to adding a new sector to a non-empty active set for the mobile station MS. When the first operation 700 mobile station MS (for example, the second mobile station MS2 in Fig.1) exchanges data packets DP in numbered data frames DF through at least one channel of the downlink and single channel uplink Bor AS, and for the neighboring sector and reports the results to the Central node RNC (for example, the first control node of the radio network RNC1 in Fig. 1). In connection branches of the descending line are the data packets DP, buffered in the serving base station (stations) as long as the data packets DP will not be able to be sent to the mobile station MS in the channel downlink in the data frame having the frame number indicated by the control node of the radio network RNC1, and in the branches of the connection uplink connection has data packets DP, buffered at the Central node RNC, after which the routine is executing explode on the data packets DP that cometh into the data frames DF with the same frame number. The buffer limit in the base station (stations) depends on the offset of the channel downlink DCO and synchronization transmission from a control node of the radio network RNC1 channel (channels) downlink. The data packet DP, which was received too late to be sent in the data frame DF, indicated by the control node of the radio network RNC1, is cast in the base station. Such restriction buffer exists for channels of upward communication line to the Central node RNC. The Central node performs the procedure explode LMD>. Specified timecan be set on the basis of many different factors, such as the maximum delay in the system, the characteristics of the communication channels used ATM or synchronization frame. Procedure explode in turn is carried out according to one or two principles. Or she performs the selection of the data packet DP with the highest quality, or it is referring to the Association of energy signals from all received copies of the data packet DP. The timeoutit may, of course, to make the Central node to perform makarasana not all copies of the data packet DP.

At operation 710, with equal intervals is checked whether adjusted or not set active AS, and if not, the process returns to the first operation 700. However, if the active set must be adjusted (such as by adding sector s21 to the active set for the second mobile station MS2 in Fig.1) should the operation 720. In this operation, the mobile station MS is instructed to measure the amount of displacement of the frame Of12between the channel downlink specified currently in the active set AS (for example, DCH1), and a common control channel nichterlein node RNC. The active set AS it then modifies the new sector (sectors) in the next operation 730, and in the next operation 740 is assigned to the channel downlink in the new sector to transmit information to the mobile station MS. At the next operation 750 at the Central node RNC calculates the amount of timing synchronization for THE new channel downlink, as the duration of the data frame Tfminus the value of the frame offset Of12. The Central node RNC also calculates the offset of the channel downlink DCO for the new channel downlink (i.e., as shall be numbered data frames DF new channel downlink relative to the States of the local frame counter in the base station that serves the new sector), as (1) the offset of the shared control channel downlink between a number of States local frame counter in the base station serving the second sector, and a common control channel downlink in this sector, plus (2) the magnitude of the timing synchronization for the new channel downlink, plus (3) integer multiple of the duration of Tfdata frame DF, where the integer is set to the value (positive, negative, or Nol and offset channel downlink DC2, which should be included in the active set AS (i.e. |DCO1-DCO2|min). The calculated value of the timing synchronization and THE offset of the channel downlink DCO is set to the new channel in the active set AS in the following operation 760, and if the last operation 770 specific frame number FN is assigned to each data frame DF of the new channel downlink by assigning the initial frame data DF in the new channel downlink within half the duration of Tfdata frame DF, beginning with the offset value channel downlink DCO after the current state of the local frame counter, the start frame number FN, is equal to the next state of the local frame counter. Each subsequent data frame DF is assigned an integer increment of the initial frame number FN, is equal to the order of each respective data frame DF with respect to the initial data frame DF. The procedure then returns to the first operation 700.

The device according to the embodiment of this invention for the exchange of information, divided into frames, in the cellular communication system shown in block diagram in Fig.8.

The Central node as a control node Radiomania radio RNC1 contains the synchronization unit 805, which generates a reference clock signal SCRthat synchronizes all other blocks in the node RNC1. The synchronization unit 805, in turn, is triggered by the signal of the reference time TRfrom the generator reference time 860, which is a GPS receiver or similar device to mark time with sufficient accuracy. The main synchronization unit 810 in the node RNC1 generates a status counter system SFC, which are sent through a dedicated and separate connections 850, 890 as the reference frame number to the base stations BS1 and BS2. The base station BS1, BS2 each including a synchronization unit 830, 860 to synchronize all other units in the base station BS1, BS2 via the clock signal CK1, CK2. Each base station BS1, BS2 also contains a synchronization unit 835, 865, from which is generated the first row of the local frame counter LFCBS1and the second row of the local frame counter LFCBS2accordingly, the transceiver unit 840, 870.

To evaluate the delay on a single tract D1D2experienced by the data packets DP, when they are sent between the Central node RNC1 and the base stations BS1 and BS2, respectively, the message about the delay about the Noah base station BS1, BS2. The delay of one path D1D2then calculated by subtracting the arrival time tandmessages about the delay signal RTD1RTD2from the time of shipment tsmessages RTD1RTD2and dividing the result by two, i.e., D1=(ta1-ts1)/2; D2=(ta2-ts2)/2. To obtain a more reliable estimate of the delay of one path D1D2runs R such calculations (where, for example, p=10), from which we compute the average delay of one path. Of course, can be applied alternative filtering methods to estimate the delay of one path D1D2. The message about the delay signal RTD1RTD2can also be combined with the message counter system SFC from the Central node RNC1 or included in it.

The message about the delay signal RTD1RTD2can come either from the base station BS1, BS2, or from the Central node RNC1. If the message about the delay signal RTD1RTD2comes from one of the base stations BS1, BS2, the compensation of the delay of one path is also performed in the base station BS1, BS2 by setting status is the food of one tract D1D2i.e. LFCBS1=SFC+D1; LFCBS2=SFC+D2. If instead, the message about the delay signal RTD1RTD2proceeds from the Central node RNC1, the delay of one path D1D2compensated at this node by moving forward on the transmission time of each message SFC1, SFC2state counter system SFC to each respective base stations BS1, BS2 for a time equal to the calculated delay of one tract D1D2i.e. so that SFC1=SFC-D1, SFC2=SFC-D2.

The main control unit 815 is used to calculate the values of the timing synchronization TA1, TA2, and values of the offset channel downlink DC1, DC2 that should be used in base stations BS1, BS2 during the exchange of data packets DP in numbered frames of data channels downlink DCH1 (DPs), DCH2 (DPs). However, the main control unit 815 determines when to adjust the active set for a specific mobile station or by the addition or exclusion of one or more sectors from the active set. The switch unit explode 820 processes the information sharing during switching procedures, as well as during normal about the tution MS2 information s received from the Central parts of the network through the voice codec (coder/decoder) and is sent to the Central parts of the network through the same voice codec. If exchange other types of data, information's or passes through an alternative codec, or transmitted unencrypted. Information shared in the form of data packets DP is supplied from the switch unit explode 820 through the switching unit 825 to the base stations BS1, BS2, and the data packets from the base stations BS1, BS2 are going to the switch unit explode 820 through the switching unit 825 and buffer block 880. Buffer block 880 is used when performing procedures explode on the copies of the received data packets DP. Buffer block 880 writes the data packets DP to a specified time, which is determined, for example, the maximum delay in the system, the characteristics of the channels of the ATM used between the control node of the radio network RNC1 and the base stations BS1, BS2. After the specified time, the procedure explode runs on the currently available copies of a particular data packet DP. The switch unit explode 820 also receives the offset frames Of12included in the data packet DP and served from mobile station MS2 through one of the base stations BS1. The offset frame Of12go to the main control unit 815 as input to calculate the values operat mobile station MS2 on channel uplink communication UCH1 (DPs); UCH2 (DPs) and forwards data packets DPs to mobile station MS2 on the channel downlink DCH1; DCH2. Data packets DPs are sent to the control node of the radio network RNC1 through the switching unit 825, and the data packets DPs are taken from the control node of the radio network RNC1 through the switching unit 825 and buffer block 855, 875. Buffer block 855, 875 writes data packets DPs up until the data packet DP can be sent to the mobile station MS2 from the first BS1 and the second base station BS2 on the channel downlink DCH1, DCH2 in the data frame having the frame number indicated by the control node of the radio network RNC1. The data packet DP, which comes too late to specific base stations BS1, BS2, to satisfy this requirement is dropped. In addition, the transceiver unit 840, 870 measuring the displacement of the common control channel downlink SO, SO between the state of its local frame counter LFCBS1, LFCBS2and its a common control channel downlink CDCH1, CDCH2. The measurement results are served to the main control unit 815 in the Central node RNC1 through synchronization unit 835, 865 and switching unit 825.

The control unit synchronization 845; 885 in each base station BS1; BS2 receives the value of the synchronization timing is enom node RNC1 through the switching unit 825. The control unit synchronization 845; 885 regulates the operation of the transceiver unit 840; 870 via the control signal I1, I2so each data packet DP, the received and transmitted via an air interface associated with the correct frame number.

This invention is primarily intended for use in the system of cellular communication mdcr, but the claimed method and device, of course, applicable to any type of cellular communication system, regardless of how divided radio resources between different users of the system. Common control channels downlink channels downlink and channels of upward communication line may be separated from one another by means of code division, combination code and frequency separation, combination code and the temporary separation and combination code, frequency and time sharing of the radio spectrum.

Claims

1. A way to sync multiple base stations in the system (100) of cellular communication, which is designed to transmit information in frames (DF) data specified duration (Tfcontaining at least one Central node (RNC1, RNC2), which is connected, IU is specific to the Central node (RNC1), characterized in that (510) is generated in the Central node (RNC1) and send status messages (SFC) of the frame counter from the Central node (RNC1) to all connected base stations (BS1, BS2), and the state of the counter is increased by one step for each of these frames (DF) data, (520) coordinates in each of the base stations (BS1, BS2) condition (LFCBS1, LFCBS2the respective local frame counter to condition (SFC) of the frame counter, and each of these frames (DF) data associated with a specific frame number (t1(1)-1-t1(4), t2(1) - t2(4)), which is obtained from the matching condition (LFCBS1, LFBS2local frame counter.

2. The method according to p. 1, characterized in that the condition (SFC) of the frame counter increases by one pulse time signal after each passing frame (DF) data, and each of the base stations (BS1-BS5) has at its disposal at least one common channel (CDCH1, CDCH2) control downlink, while an additional (530) in each of the base stations (BS1, BS2) measured value (SO, SO) offset common control channel downlink between States (LFCBS1, LFCBS2local frame counter and a shared channel (CDCH1, CDCH2) control NISTO, correlated with the frequency of the pulse signal time counter (SFC) personnel, and (530) report size (SO, SO) offset common control channel downlink Central node (RNC1).

3. The method according to p. 1 or 2, characterized in that the adjustment of status counter (SFC) frames sent at regular intervals (T) of time.

4. The method according to any of paragraphs.1-3, characterized in that the delay (D1D2) on the signal in one direction is determined for each connection between the Central node (RNC1) and all connected base stations (BS1, BS2), and this delay on the signal flow in one direction is compensated.

5. The method according to p. 4, characterized in that the delay (D1D2) on the signal in one direction is calculated by using the procedure that contains the consecutive operations: sending a message about the delay (RTD) on the signal in the forward and backward directions between the Central node (RNC1) and the given base station (BS1), the dierence between time (ta) income and the corresponding time (ts) sending messages about the delay (RTD1) on the signal in the forward and reverse direction, and dividing the result by D. the results obtained in the previous operation.

6. The method according to p. 5, characterized in that the message about the delay (RTD) for passing a signal in the forward and reverse direction is sent from the base station (BS1, BS2).

7. The method according to p. 6, characterized in that the delay (D1D2) on the signal in one direction is compensated in each of the base stations (BS1, BS2) by setting the state of the local frame counter according to the equality

LFCBSX=SFC+Dx,

where LFCBSXdenotes the corresponding state LFCBS1or LFCBS2local frame counters, resolution of which is equal to the part of the pulse time signal (preferably, a pulse signal of the time/10);

SFC denotes the state of the counter;

Dx denotes the delay D1or D2the passage of the signal in one direction.

8. The method according to p. 5, characterized in that the message about the delay (RTD1) on the signal in the forward and reverse direction is sent from the Central node (RNC1).

9. The method according to p. 8, characterized in that the delay (d1D2) on the signal in one direction is compensated at the Central node (RNC1) by moving forward in time reporting each condition (SFCx) with the counter, sent to a specific base station (X=1:BS1, X=2:BS2);

SFC denotes the state of the counter;

Dx denotes the delay D1or D2the passage of the signal in one direction.

10. The method according to any of paragraphs.2-8, characterized in that each of the asynchronous base station serving at least one geographic sector (s11-s56), each of which is associated with a specific shared channel (CDCH1, CDCH2) control downlink, at base station (BS1-BS5) communicate with mobile stations (MS1-MS4), and this information is divided into packets (DP) data, which is transmitted in frames (DF) data channels (DCH1, DCH2) downlink through one or more sectors (s23, s24) to the mobile station (MS1-MS4), and in the channels of upward communication (UCH2) from the mobile station (MS1-MS4) through one or more sectors (s23, s24) for establishing a connection between a specific mobile station (MS2) and at least one base station (BS1), (610) is determined for the mobile station (MS2) active set (AS), in which you specify at least one channel (DCH1) downlink and single channel (UCH2) upward communication (620) for each channel (DCH1) downlink in the active set (AS) of the mouth of the effect downlink and specific channels (DCH1) downlink, (630) for each channel (DCH1) downlink in the active set (AS) calculates the offset (DCO1) channel downlink as the sum of (SA+TA1) offset (SSO) common control channel downlink and value (TA1) timing synchronization, (640) designate a specific number (t1(1)-t1(4)) of the frame each frame (DF(1)-DF(4)) of data in each of the channels (DCH1) downlink by assigning the initial frame (DF(1)) data of the first number (t1(1)) and each subsequent frame (DF(2)-DF(4)) data integer increment (t1(2) t1(3) t1(4)) this number (t1(1)), is equal to the order of each respective frame (DF(2)-DF(4)) data relative to the initial frame (DF(1)) data.

11. The method according to any of paragraphs.2-8, characterized in that each of the asynchronous base station serving at least one geographic sector (s11-s56), each of which is associated with a specific shared channel (CDCH1, CDCH2) control downlink, at base station (BS1-BS5) communicate with mobile stations (MS1-MS4), and this information is divided into packets (DP) data, which is transmitted in frames (DF) data channels (DCH1, DCH2) downlink through one or more sectors (s23, s24) to the mobile station (MS1-MS4), and channels (UCH2) Voshod least one second sector (s21) with the specific mobile station (MS2), which had already communicates through at least one first sector (s14) specified in the active set (AS) for this mobile station (MS2), (720) measure at least one quantity (Of12) frame offset between channels (DCH1) downlink in the active set (AS) and the second common channel (CDCH2) control downlink associated with the second sector (s21), are not included in the active set (AS), (730) reported active set (AS) by adding to it the second sector (s21), (750) calculate the value of (TA2) timing and synchronization value (DCO2) offset channel downlink to at least one second channel (DCH2) downlink in the second sector (s21), (760) set the shift between frames (DF) data transmitted in the second channel (DCH2) downlink and the second shared channel (CDCH2) control downlink equal to the value (TA2) timing synchronization, (770) designate a specific room (t2(1)-t2(4)) of the frame each frame (DF(1)-DF(4)) the data in the second channel (DCH2) downlink by setting the frame (DF(1)) data after the current state of the local counter of the second row of astucia frames from this series, and each subsequent frame (DF(2)-DF(4)) data integer increment (t2(2) t2 (4)) this room (t2(1)) of the frame is equal to the order of each respective frame (DF(2)-DF(4)) data relative to the initial frame (DF(1)) data.

12. The method according to p. 11, characterized in that the calculation of (750) is carried out according to

TA2=Tf-Of12,

where TA2 denotes the value of the timing synchronization;

Tfindicates the duration of the frame (DF) data;

Of12denotes the value of the frame offset, and

DCO2=SO+TA2+iTf,

where DCO2 indicates the offset of the channel downlink for the second channel (DCH2) downlink, i.e., as numbered (t2(1)-t2(4)) frames (DF) data of the second channel (DCH2) downlink relative to the States (LFCBS2(n)) local frame counter in the second sector (s21);

SO denotes the amount of displacement of the common control channel downlink between the second number of States (LFCBS2(n)) local frame counter and a shared channel (CDCH2) control downlink;

TA2 denotes the value of the timing synchronization;

i have a value, which is set to a value that minimizes the modulus of the difference (|DCO1-DCO2|minbetween emeniem (DCO2) of the second channel downlink;

Tfindicates the duration of the frame (DF) data.

13. The method according to p. 12, characterized in that the displacement (DCO1) channel downlink for the first channel (DCH1) downlink count according to

DCO1=CCO1+TA1,

where SO is the last offset of the common control channel downlink between the first number of States (LFCBS2(n)) local frame counter and the first shared channel (CDCH1) control downlink reported from the first base station (BS1) to the Central node (RNC1);

TA1 is equal to the value of timing synchronization for the first channel (DCH1) downlink.

14. The method according to any of paragraphs.10-13, characterized in that during the exchange of information on the channel downlink packets (DP) data bufferinput (C) in each of the base stations (BS1, BS2) up until the frame number for data frames, transmitting each packet (DP(1) DP(4)) data will not match the number (t1(1)-t1(4); t2(1)-t2(4)) of the frame in the corresponding channels (DCH1; DCH2) downlink.

15. The method according to p. 14, characterized in that the buffer (In) holding packets (DP) data to the maximum, the packet (DP) data discarded if it arrives at the base station (BS1, BS2) too n Central node (RNC1).

16. The method according to any of paragraphs.10-15, characterized in that during the information exchange channel uplink communication packets (DP) accept data in the base stations (BS1, BS2) in frames (DF) data, numbered (t1(1)-t1(4); t2(1)-t2(4)) relative to the numbering of the frames of channels (DCH1, DCH2) downlink specified by the Central node (RNC1), thus the procedure explode perform at the Central node (RNC1) on packets (DP) data sent in frames (DF) data, with identical numbers.

17. The method according to p. 16, characterized in that the procedure explode perform, when all copies of this package (DP) data received at the Central node (RNC1), but not later than the time (T) after receipt of the first copy of the packet (DP) data.

18. The method according to p. 17, characterized in that the procedure explode is selective, i.e., choose one package (DP) data having the highest quality to represent the transmitted data.

19. The method according to p. 17, characterized in that the procedure explode is combinational, i.e., the contents of all packets (DP) data brought together to form a representation of the transmitted data.

20. The method according to any of paragraphs.1-19, characterized in that the total channels (CDCH1, CDCH2) control downlink channels (DCH1, DCH2) the division of the radio spectrum, or (B) of the code and frequency division of the radio spectrum, or (C) of the code and time division of the radio spectrum, or (D) a combination of code, frequency and time sharing of the radio spectrum.

21. The device for exchanging information in frames in the system (100) cellular radio telecommunications systems containing at least one Central node (RNC1, RNC2), which is attached at least one asynchronous base station (BS1, BS2), through which the packets (DP) data exchange channels (DCH1, DCH2) downlink and channels (UCH1, UCH2) uplink communication with the mobile stations (MS2), and the control signals are transmitted on common channels (CDCH1, CDCH2) control downlink to the mobile stations (MS2), containing the main unit (815) control to calculate the values of (TA) timing and synchronization units (DCO1, DCO2) offset channel downlink that should be used when exchanging packets (DPs) data in numbered frames (DF) data channels (DCH1, DCH2) downlink, and the unit (820) switch explode for simultaneous connection of more than one base station (BS1, BS2) with the specific mobile station (MS2), characterized in that the Central node (RNC1) contains main unit (810) of synchronization is thew generate and send status messages (SFC) of the frame counter in the base station (BS1, BS2), with each base station (BS1, BS2) contains the block (835, 865) synchronization for reception conditions (SFC) of the frame counter and generating States (LFCBS1; LFCBS2local frame counter, and block 835, 865) synchronization is made with the possibility of increasing state (SFC) of the frame counter by one pulse time signal for each frame (DF) data, and assigning each frame (DF) data specific number (t1(1)-t1(4); t2(1)-t2(4)) of the frame, which is obtained from the matching condition (LFCBS1, LFCBS2local frame counter.

22. The device according to p. 21, characterized in that the Central node (RNC) further comprises a generator (805) clock pulses for synchronization of all other units included in the node (RNC) of the radio network control, generator (860) reference time, providing an absolute standard of time (TR) that should be used the main unit (810) synchronization and block (825) switching to alternately attach unit (820) switch explode to one specific base station from the base stations (BS1, BS2).

23. The device according to p. 22, characterized in that the generator (860) reference time is the receiver of global satellite positioning system GPS.

24. ) clock pulses for synchronization of all other blocks in the base station (BS1, BS2), block (840, 865) transceiver to transmit packets (DP) data in numbered frames (DF) data and measurement values (SSO; SSO) offset between States (LFCBS1, LFCBS2local frame counter and total channels (CDCH1, CDCH2) control downlink, and block (845, 885) synchronization control for receiving values (TA1, TA2) timing and synchronization units (DCO1; DCO2) offset channel downlink and control (I1; I2) unit (840; 870) transceiver.

25. Device according to any one of paragraphs.21-24, characterized in that at least one specific and individual connection (850, 890) allocated for transmission of conditions (SFC) of the frame counter from the Central node (RNC1) to each of the base stations (BS1, BS2).

26. The device according to p. 25, characterized in that each of the specific and individual compounds (850, 890) offset delay (D1; D2) on the signal flow in one direction between the Central node (RNC1) and each corresponding base station (BS1; BS2).

27. Device according to any one of paragraphs.21-26, wherein each of the base stations (BS1, BS2) contains the first block (855, 875) buffer for buffering packets (DP) data that have been transferred from the Central node (RNC1).

operatica.

29. Device according to any one of paragraphs.21-28, wherein the Central node (RNC1) contains the second block (880) buffer for buffering packets (DP) data that has been transmitted from the base stations (BS1, BS2).

30. The device according to p. 29, characterized in that the output of the second block (880) buffer attached to the unit (820) switch explode.

 

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