Transfer manipulation diversity for mobile telecommunications system multiple access code division channel

 

The invention relates to telecommunications. In connection with the process of transferring manipulation of diversity for cellular communication systems with soft switching, the appointment of the replaced block manipulation diversity in the destination node occurs only after the sender node has decided to transfer. Initially, the original block manipulation or passing the block manipulation diversity of the sender node, the sender performs the function of combining compounds and separation of compounds for branches mobile connections that are routed through a set of base stations serving a mobile station. In accordance with the movement of the mobile station node is the sender decides to move. The decision to transfer may be based on factors such as the use of the base station, and/or actual and/or projected directional movement of the mobile station. In some embodiments, the implementation process of the transfer of the manipulation of diversity includes the variety of sites for the location of the replaced block manipulation explode or block the addressee. The technical result is to ensure the effective and the economy is gaining relates to communication systems, in particular, to a cellular/mobile communications, using (soft) transmission service with the division, the type of transmission service that have taken place in the methods of the extended spectrum multiple access code division multiplexing (mdcr).

In mobile communication systems mobile station, for example a mobile phone communicates with the base stations via radio channels. In a typical case, the set of base stations connected with the switching center mobile communications (SMC). SMC is normally connected, for example, through a gateway (gateway), with other communication networks, type the public switched telephone network of General use.

In the mobile communication system mdcr information transmitted between the base station and the mobile station is modulated by the code spread spectrum, to distinguish it from information for other mobile stations that use the same radio frequency. Thus, in the system mdcr individual radio links are distinguished on the basis of codes. In the work of Garg, Vijay K. et al. Applications of CDMA in Wireless/Personal Communications, Prentice Hall (1997) outlines the various aspects mdcr.

In addition, in the mobile communication systems mdcr usually the same modulating signal with sootvetstvuem, mobile terminal station can receive and use signals from multiple base stations simultaneously. In addition, since the external environment of the radio communication are changing rapidly, it is likely that the mobile station has a radio with multiple base stations at the same time, for example, that it is able to select the best channel and, if necessary, to use the signals directed to the mobile stations from different base stations, to keep interference at a low level, and the throughput is high. This use of radio mobile station in the scheme mdcr from multiple base stations is called "soft transfer".

In Fig. 1 shows an access network radio (SDR) 20, which includes a network controller radio (TFR) 221and 222accordingly, United with SMC 241and 242. RCDS 221connected to base stations (BS) 261,1, 261,2and 261,3, RCDS 222connected to the base station 262,1, 262,2and 262,3. In the form shown in Fig.1 time MS performs radio communication with two base stations, namely, 261,2and 261,3. Each of the lines 281,2281,3is a channel SW 261,2to RCDS 221line 281,3represents the channel from the MS to the BS 261,3and channel ground lines of communication from the BS 261,2to RCDS 221. If both lines 281,2281,3ground connection line connected to the transfer unit service with explode (BPOR) 301network controller 221.

Thus, as described relative to Fig.1, the mobile connection with MS potentially uses several "branches", and in the case shown in Fig.1 MS each branch represented by lines 281,2281,3. If we consider the common link between MS and any other subscriber, BPOR 301is essentially both to unite and to separate the different branches used MS. Separation takes place in the sense that the information sent to the MS, sent via multiple parallel branches to different base stations. Received from the base station information can actually be obtained in several branches (for example, multiple base stations), and in this sense BPOR 301implements the function.

Fig.1 illustrates a simple case in which different branches of the compounds represented by the lines 281,2281,3refer to the BS that the gas station managed other RCDS, for example in a cell served by the BS 262,1or near it, there is a more complex situation, for example, as shown in Fig.1A.

In depicted in Fig.1A situation in the mobile connection, including MS, are involved base stations belonging to different RCDS. This situation involves a different type of transmission service - soft transfer service between the TFR. Miscontrolled (between RCDS) soft transmission maintenance is carried out between two or more RCDS. In the particular situation shown in Fig. 1A, a soft handover between the TFR is between RCDS 221also known as TFR "sender", and TFR 222also known as TFR "recipient". RCDS 221is RCDS sender, because he oversees the management of mobile radio communication, RCDS of the recipient is different from the TFR of the sender, because he uses or makes a decision about the use of base stations for mobile radio communications.

To ensure soft handovers between TFR TFR 221and 222connected to the transport line 32 connection between the TFR. Transport line 32 connection between the TFR is used to transfer control signals and information signals between SCRI, as described, for example, in International application PCT/US 94/12419 (international publication WO 95/15665).

Thus, in Fig. 1A MS is connected not only through the branch, represented by the line 281,3but also through a branch, represented by the line 282,1. Branch, represented by the line 282,1includes line contacts between MS and BS 262,1as well as information corresponding to the mobile connection which is carried out by transport line 32 connection between RCDS.

As MS continues to move, eventually it may happen that all the base stations used by the MS, will be served RCDS 222recipient, as shown in Fig.1B. In this case, the transport line 32 connection between the RCDS must bear both branches of the mobile connections are represented by lines 282,1282,2respectively. The use of multiple branches of the same mobile connection unwanted way requires additional resources from the transport line 32 connection between the TFR. In Fig.1B block 301transmission service with the division manages all operations of Union and separation, even if the mobile connection with MS uses none base station relating to the TFR 221OTP is change, if the operation control passing move in the TFR 222the addressee. The use of the transport line 32 connection between the TFR can be reduced because, for example, line 32 does not need to transmit multiple packets are assigned in parallel to 261,2and 262,2and instead BPOR in the TFR 222the recipient can perform the separation. Such savings leads to the presence BPOR to RCDS 222the destination combines the signals from the MS received through the BS 262,1and 262,2and forwards the resulting signal to the TFR 221of the sender.

Moving operations management passing on RCDS recipient, type RCDS 222recipient in Fig. 1B is a complex operation and can potentially lead to interruption of the established mobile connection. A known approach to moving operations management diversity described in International application PCT/US 94/12419 (international publication WO 95/15665). This approach, illustrated in Fig.1C, includes a process consisting of two stages. The first step in the process is the routing of mobile connection in bypass mode, through the block 302managing diversity in the TFR 222recipient at the first mobile station RCDS recipient (ub>2managing diversity in the TFR 222the recipient does not merge or split. Rather, all operations of the Association and the division remained an area of activity BPOR 301in RCDS 222of the sender.

Only later, when (and if) all the base stations, the mobile stations are owned by RCDS 222recipient, is the second stage of the above-described method. At the second stage of aggregation, the division moved from BPOR 301DAC 221the sender in the block 302managing diversity RCDS 222the recipient, but BPOR 301costs, as shown in Fig.1C.

Known methods of control transfer explode are problematic for several reasons. For example, at the time shown in Fig. 1B, prior to the actual transfer of the operations of the Association/division in the TFR 222the recipient, on the transport line 32 connection between the TFR is still uneconomic uses two transport connection (e.g., two branches of the flow of information for a single connection). In addition, for each of the TFR, which is used by the mobile radio communication needed one BPOR 30. The use of two control units diversity leads jeffektivnogo and cost-effective way to transfer (migrate) management of diversity.

In connection with the process of the transfer control layer on the appointment of the replacement control unit diversity in the destination node occurs only once in the sender's host decided to transfer. First, the source control unit diversity or the control unit by passing the sender node, the sender performs the function of combining the connection and separation of the connection branches mobile connections addressed through multiple base stations serving the mobile station. In accordance with the movement of a mobile station node, the sender decides to move the load connection and separation of the connection in the destination node. The decision to move may be based on factors such as the use of the base station, and/or actual and/or predicted direction of movement of the mobile station, and transmission cost. In some embodiments, the implementation of the migration process management diversity includes the variety of sites for the location of the replaced control unit diversity, or corresponding unit of the recipient.

In one embodiment of the invention the reference node performs the actual switching, which causes p is its invention optimizes the transmission channel between the network nodes and the use of hardware nodes (e.g., control blocks explode and interfaces). The transfer of the management of diversity according to the present invention is performed regardless of the movement of the radio interface, allowing separate optimization of resources and radio resources for the transmission of fixed communication channels. According to the present invention the decision to migrate, thus, can also be based on the use and transmission delay.

The above and other objectives, features and advantages of the invention are explained below in the description of the preferred embodiments illustrated in the drawings.

Fig.1, 1A, 1B and 1C is a schematic diagram illustrating a known mobility management connection for the mobile station moving from base stations managed by network controller radio sender, to the base stations belonging to the network controller radio recipient.

Fig. 2, 2A and 2B are diagrams illustrating various stages of the management of mobile connection in accordance with the method of the present invention, including the method of transfer of control passing from the first network controller to the second radio network controller radio sender in accordance with the embodiment of the invention.

Fig. 4 is a schematic illustration of the control unit diversity included in shown in Fig.3 network controller radio sender.

Fig. 5, 5A, and 5B is a schematic diagram of a network controller radio sender according to a variant implementation of the invention in the moments corresponding to Fig.2, 2A, and 2B, respectively.

Fig. 6 is a schematic illustration of the control unit diversity included in shown in Fig.5 network controller radio recipient.

Fig. 7 is a schematic representation of the sequence of operations, included in the transfer procedure management diversity according to the claimed method, using two network controllers radio.

Fig. 8, 8A, 8B and 8C is a schematic image frames according to a variant embodiment of the invention.

Fig. 9 and 9A is a flowchart of the algorithms, showing the various options logic for making decisions about the transfer of the management of diversity according to the invention.

Fig. 10 is a schematic representation of the area radio network with more than two network controllers radio.

Fig.11, 11A, 11B, and 11C is a schematic diagram illustrating the various stages of the control shown in Fig.2-2B mobile Lera radio communication at the first network controller radio with mobile connection using SMC connected to the first network controller radio.

Fig. 12, 12A, 12B and 12C is a schematic diagram similar to Fig.11, 11A, 11B, and 11C, respectively, but with mobile connection using SMC, connected to a second network controller radio.

Fig.13 and 13A is a schematic diagram showing the situation before and after the execution of the transfer block transfer service with the division, including three different network controller radio.

Fig. 14 is a schematic representation of the sequence of operations in the process of transferring the management of diversity in accordance with the node according to the invention, comprising three different network controller radio.

Fig. 15 is a block diagram of an algorithm illustrating operations when transferring using multiple CORER.

In Fig.2 shows a portion of the network 120 to access the radio according to the method corresponding to the present invention, which contains the first set of base stations (BS) 1261,11261,2and 1261,3connected by land lines to a network controller radio (TFR) 1221sender, and a second set of base stations (BS) 1262,1, 1262,2and 126 which serves as a network controller radio recipient. RCDS 1221the sender is connected to the CCM 1241, while the TFR 1222the recipient is connected to the CCM 1242. CKP 1221the sender and the TFR 1222recipient connected to the transport line 132 relationship between the TFR. Transport line 132 relationship between the TFR can be either a direct link or a logical link. In the case of logical lines of communication transport line 132 relationship between TFR physically connected to the transport network or the public switched telephone network of General use (type of digital network integrated services (CSCO) or PSTN). RCDS 1221the sender and the TFR 1222recipient are considered as nodes in a control network 120 access to radio in the sense that, among other things, these RCDS control or manipulate sets of base stations respectively connected to him.

As described below for mobile connection managed RCDS 1221the sender, in accordance with the present invention, the designation of a block transfer service with the division (or control unit diversity) in the TFR 1222the recipient does not occur until until RCDS 1221the sender decides on the transfer of operations management diversity in the TFR 1222the addressee. In this respect the decision to transfer the management of diversity. In Fig.2A shows the network 120 access to radio in the next moment of time during which a transmission unit of service with the division (BPOR) 1302is in the process of appointing the TFR 1222recipient, and Fig.2B shows the network 120 access to radio next next time, when the transfer control passing is completed and in the TFR 1221the sender made the switch.

DAC 1221the sender shown in more detail in Fig.3 as containing a switch 1401. The switch 1401managed by the block 1421Department of the TFR has many ports, some of which are connected with BPOR 1301and the other is connected to various interfaces. BPOR 1301connected to the block 1411approval in time. Block 1421Department of the TFR is connected to each element RCDS 1221.

For the reasons explained below, the TFR 1221the sender is connected to the GSM network, represented by line 143. RCDS 1221the sender is connected to the network 143 alarm interface 143I1alarm. Interface 143I1alarm connected to the block 1421Department of the TFR.

Interfaces connected to ports of the switch 1401, vkliuchati. Block 1441the SMC interface is connected to the CCM 1241. Block 1461interface RCDS connected to the transport line 132 relationship between the TFR. Block 1481the interface of the base stations is connected to the first set of base stations, serviced RCDS 1221of the sender. Although the block 1481the interface of the base stations shown logically as a single unit serving base station, it should be clear that physically block 148 interface base station may be a separate unit for each base station.

BPOR 1301RCDS 1221the sender shown in more detail in Fig.4. In particular, BPOR 1301first of all contains the controller 1601the divider 1621frames, set of buffer blocks 1641-1-1641-nthe return line, the selector 1661frames and the set of buffer blocks 1681-1-1681-ndirect lines of communication. As the divider 1621frames, and the selector 1661personnel receive signals from the approval time line 1701from block 1411coordination in time, and also connected to the controller 1601.

The divider 1621frame accepts (via switch 1401the input signal in the form of personnel on line 1721from the CCM 1241, while select the connected to specific ports of the switch 1401that can be connected internally via switch 1401to the CCM 1241.

The divider frame 1621generates frames received from the CCM 1241on line 1722in each one of the buffer blocks in the set 164, which corresponds to the base station in real time participating in a mobile connection with mobile station. Each of the buffer blocks in the set 164 in turn is connected to transmit the received frame to the switch 1401on lines 1761-1-1761-n. Line 1761-1-1761-nconnected to respective input ports of the switch 1401and these input ports can carry out internal cross-connections (e.g., switching) through the switch 1401to reverse land line for the respective base stations participating in the mobile connection.

The selector 1661frames receive frames with different buffer blocks in the set of buffer blocks 1681-168ndirect lines of communication. BS involved in the mobile connection, send the frames in the corresponding buffer blocks 1681-168na straight line in the respective lines 1781-1-1781-n. Each of the lines 1781-1-1781-n1staff selects the best frames for transmission through the switch 1401in the CCM 1241.

As shown above, the controller 1601BPOR 1301connected to the divider 1621frame and selector 1661personnel, to manage their operations, and line 1801to block 1421Department of the TFR. Block 1421control RCDS controls the operation of the controller 1601and coordinates the operation of the controller 1601with other elements of the RCDS 1221of the sender.

In Fig.5 shows the TFR 1222the recipient, in accordance with an exemplary embodiment of the invention, at a specific point in time that corresponds shown in Fig. 2. RCDS 1222recipient includes a switch 1402block 1412coordination in time, the block 1422Department of the TFR, the block 1482interface BS, block 1442interface SMC and BPOR 1302. For simplicity, some connections inside the TFR 1222the recipient does not display the management of the RCDS.

In the form shown in Fig.5 time a mobile station (MS) has just moved to the geographic location in which it carries out radio communication with a base station (BS) 1262,1and 1262,2but no longer carries out radio communication with any base station, owned by RCDS 1222the sender (Fig. 2). In the form shown in Fig.5 time BPOR in the TFR 1222the destination is not assigned to a mobile connect with MC. On the contrary, all branch connections are routed through the switch 1402without direction through BPOR 1302.

As shown in Fig.5, the switch 1402has, among other ports, ports return line communication base stations POLB-1, PAB-2, PAB-1 and PAB-2 ports direct line of communication base stations PLB-1, PV-2 and PV-2 ports PC1 and PC2 connected to the terminals of the inverse and direct communication lines, respectively, an interface unit RCDS 1462and ports of the transmission unit with the division of PR1-PR. As shown in Fig.5, ports direct line of communication base station PLB-1 and PV-2 ports and a return line communication base station POLB-1 and PAB-2 is connected through the block 1482interface base station to the BS 1262,1, while ports a straight line base ub>2interface base station to the BS 1262,2. In the form shown in Fig. 5 time ports direct line of communication base station PLB and PLB connected (via switch 1402with port PC1 interface direct lines of communication, ports return line communication base station POLB and POLB connected (via a switch 1402) port PC2 interface reverse link.

It is clear that BPOR 1302CKP 1222recipient, shown in Fig.6, must have essentially the same structure as shown in Fig.4 BPOR 1301with one important exception. This exception is that in BPOR 1302line 1722and 1742ultimately connected by the switch 1402to block 1462interface CKP, not to SMC. In particular, as explained below, line 1722and 1742can be connected by the switch 1402ports PC1 and PC2 switch for the corresponding application to the telecommunications terminal of the inverse and direct line interface unit CKP 1462(see Fig.5).

As mentioned above, is shown in Fig.5 time, BPOR in CKP 1222the destination is not assigned to the mobile connection with mobile station (MS). It should be understood that the CKP 1222the recipient probably has the mi otherwise, than shown in Fig.5 specific MS. Such other BPOR may have, accordingly, aimed shots through them involved in other mobile connections, such as frames sent from the CCM 1242to another mobile station, and the frames sent from another mobile station (and through different base stations) on the CCM 1242. However, for the implementation of mobile connections discussed here MS, shown in Fig.5 time block transmission service with the division of RCDS 1222recipient's still not included.

In Fig. 7 shows the sequence of operations of the process of transferring management of diversity in accordance with the embodiment of the invention. In Fig. 7 shows three separate parallel vertical lines operations performed by each device of the RCDS 1221sender, RCDS 1222recipient and BS, serviced RCDS 1222recipient and participating in a mobile connection to MS.

Operation 7-1 in Fig.7 shows that the block 1421controller RCDS 1221the sender makes a decision regarding what should happen in the transfer block transfer service with diversity (e.g., transfer of the management of diversity). On somese management diversity, when the TFR 1222the sender no longer use any of his BS 1261-1263participating in a mobile connection to the MC. Logic block 1421Department of the TFR, concerning the decision to transfer the management of diversity, described in more detail in connection with Fig.9.

After the unit 1421control RCDS decides to transfer control spacing, block 1421control RCDS performs the operation 7-2. Operation 7-2 includes the purpose or establishing unit 1421control RCDS connection line 132 relationship between the TFR. In connection with the operation 7-2 block 1421control RCDS assigns port switch 1401and the port block 1461interface TFR to use the new connection line 132 relationship between TFR 1222recipient and RCDS 1221of the sender. Assignment in operation 7-2 is for a new connection, i.e. the connection for the MS, because the connections to other MS may already exist.

After completing the assignments in operations 7-2, during the operation 7-3 block 1421control RCDS sends a message to the alarm system, including requesting transfer of diversity management in the TFR 1222the addressee. Message signaling between SKP passed by saivites request transfer service diversity is routed through the switch 1401and the block 1461interface TFR for use in line 132 relationship between the TFR. The request transfer unit transfer service with the division submits a command TFR 1222recipient to designate a transmission unit of service with the division (BPOR) for mobile connection with this MS and connect assigned BPOR base stations currently used MS. The alarm message that includes a request transfer unit transfer service with explode (BPOR), has the following information: (1) the identity of the connection line 132 relationship between the TFR for connection with the connection between the newly appointed BPOR and applicable SMC (for example, the CCM 1241), and (2) the identity of BS previously assigned BPOR 1401RCDS 1221the sender and is currently being used for mobile connect with MC.

The alarm message from the RCDS 1221the sender (which includes a request transfer unit transfer service with diversity) is routed through the switch 1402to block 1422control RCDS 1222the addressee. The routing of the message signaling unit 1422control RCDS may include routing through the network signalizaci is about Fig.7. Operations 7-4, 7-5 and 7-6 reflected in Fig.5A.

Operation 7-4 includes the designation of a block transfer service with explode (BPOR) 1302to connect with MC. The purpose BPOR 1302to connect with MC includes a connection through the switch 1402, BPOR 1302unit 1462interface RCDS. This connection is made by connecting the port R1 port PC2 and the connection port PC1 port NP2 [see Fig. 5A] . As for BPOR 1302this connection means that line 1742(connected to port PR1) is connected to port PC2, so that (after migration) frames are sent from the selector 1662frames in the interface 1462RCDS, and ultimately through the switch 1401in the CCM 1241[see Fig.6] . In addition, line 1722(connected to port NP2) connects to port PC1, so that (after migration) frames can be sent through the switch 1401and the switch 1402in the divider 1622frame [see Fig.6].

Operation 7-5 involves assigning new connections between RCDS 1222the destination base stations, managed RCDS 1222recipient that cater to the mobile station, in particular, BS 1262,12,1and destination ports PLB-2 and PAB-2 to connect the corresponding BS 1262,2. Further, ports PLB-2 and PV-2 are connected with the ports of PRX3 and PR respectively, while ports POLB-2 and PAB-2 are connected with the ports of WP5 and PR respectively. Ports PRX3 and PR switch 1402connect with a straight line 1782communication frames ultimately, the selector 1662frame [see Fig.6]. Ports WP5 and PR switch 1402connected with the return line 1762due to get in the end frames with the divider 1622frame [see Fig.6].

Operation 7-6 depicts a block 1422control RCDS 1222recipient, sending the alarm message to request establishment of additional lines of communication with each of the base stations belonging to the TFR 1222recipient, which serve MILLISECONDS. These alarm messages are sent through semi-permanent connections established during initialization of base stations. In block 1422control RCDS know how to install these messages alarm due to the parameters received in the request for transfer [see operation 7-3]. Each of the signalling messages sent during the operation 7-6, includes identification of danurasana and the corresponding base station. Although not shown, it should be clear that when sending alarm messages to the block 1422Department of the TFR is connected internally through the switch 1402ports POLB and POLB.

The request to establish additional lines of communication, which is sent to the BS 1262,1and BS 1262,2during the operation 7-6, submits a command to the base stations to connect them transceivers in parallel on the RCDS 1222the recipient through the connection specified in the request for establishment of additional communication lines. The transceivers are already connected to the TFR 1221the sender, that is BS 1262,1already connected through the ports PLB-1 and PAB-1, BS 1262,2already connected through the ports PLB-1 and PAB-1. New parallel connection to BS 1262,1include ports PLB-1 and PAB-1, new parallel connection to BS 1262,2include ports PLB-2 and PAB-2. Each of the used base stations, that is BS 1262,1and BS 1262,2that connects your transceiver to the connection and sends a response confirmation message in the TFR 1222the addressee in the form of operations 7-7 [see Fig.7].

Operation 7-8 in Fig.7 represents the synchronization between the base stations, the ECCA synchronization is described below.

In the form shown in Fig. 5A time the base station BS 1262,1and BS 1262,2transmit information directed through BPOR 130i sender to MS on the reverse link. On the other hand, in the direct line of BS 1262,1and BS 1262,2send the same received data (though perhaps with different quality) and information management in BPO) 1301the sender and BPOR 1302recipient.

When all involved base stations are synchronized, as during surgery 7-9, block 1422control RCDS 1222the recipient sends a message to the alarm in the TFR 1221of the sender. Message alarm when the operation 7-9 includes a request switch. To switch to the TFR 1221sender all traffic on the line 132 relationship between TFR associated with all branches of the mobile connections with MS from block 1461interface RCDS and routed through the switch 1401and BPOR 1301as shown by the lines "Before X" in Fig.3. After receiving the request switch unit 1421control RCDS 1222the recipient performs the switching process, as shown by operation 7-10 [see Fig.7]. The switching process preferably is carried out between the transmission of cavriana in time between RCDS 1221the sender and the TFR 1222recipient.

In the process of switching during the operation 7-10 block 1421control RCDS actuates a switch 1401with the aim of connecting block 1461interface RCDS through switch 1401to block 1441interface SMC, as shown by the line "After X" in Fig.3. After switching frames from the CCM 1241are routed through the switch 1401for use by block 1461interface TFR in line 132 relationship between TFR and TFR 1222the recipient through the switch 1402and BPOR 1302. Frames are divided BPOR 1302for use in BS 1262,1(port POLB-2) and BS 1262,2(port POLB-2). In addition, frames, destined for the CCM 1241are routed through the switch 1402in BPOR 1302where they are combined with the routing result (e.g., best) of the frame through the switch 1402and the use of block 1462interface DAC in line 132 relationship between the TFR. In RCDS 1221sender frames are routed through the switch 1401in the CCM 1241avoiding BPOR 1301.

As shown by operation 7-11, after switching RCDS 1221the sender of the confirmation switch unit 1422control RCDS 1222recipient actuates a switch 1402to free ports PLB-1 and PAB-1, first used by the base station 1262,1and ports PLB-1 and PAB-1, first used by the base station (BS) 1202,2. Thus, BPOR controller DAC 1221the sender is then available resource. At this time, the mobile connection with MS includes only branches that use ports that connect the base station again involved in connection with the transfer of the management of diversity. In Fig.5B shows the branch mobile connect for MS in TFR 122 of the recipient.

In addition to messages alarm type described with reference to Fig. 7 (which may be similar to the MAP Protocol used in GSM (global system for mobile communication)), line 132 relationship between TFR carries traffic or custom frames and dummy frames and frames control synchronization. Examples of frame formats of traffic shown in Fig.8 and Fig. 8A. In Fig.8 shows, in particular, the frame traffic straight line, which has a field 8-1 frame type field 8-2 the frame number field 8-3 indicator of quality and field 8-4 user data traffic. Fig.8A depicts cadaters traffic.

An example of the contents of the fields 8-3 and 8-4 indicator of quality is the received signal-to-noise ratio for the frame. In addition, in the field 8-3 and 8-4 of the quality indicator can include the checksum for the frame. The quality indicator used by the selector of frames in the block transfer service with explode (BPOR) to select and directions (corresponding SMC) user data traffic the best frame of all frames received number of frames from all base stations used to communicate with the MC. On the other hand, the divider frame copies the data of user traffic for all base stations included in the connection with the mobile station PS, and attaches the frame number for the field 8A-2 [see Fig.8A]. Block matching in time (for example, block 1411approval in time) provides a block transfer service with explode (BPOR) frame number and the standard sync frame number.

A dummy frame, an example of which is illustrated in Fig.8B, can be used for communication and synchronization, there is no need to send the actual schedule. A dummy frame is also used in the return line from the transmission unit of service with the division (BPOR) 1302P in Fig.8B includes field 8B-1 frame type, box 8B-2 frame number and field 8B-4 dummy data.

Frame synchronization is shown in Fig.8C, can be used to transfer values of the synchronization settings. It is shown in Fig.8C is an example of a frame synchronization includes box 8C-1 frame type and field 8C-4 data size settings. In a possible embodiment, the inventive method field 8C-4 data size configuration contains a positive or negative offset time.

As mentioned above, for example, with reference to the operation 7-1 in Fig.7, the block 1422control RCDS 1221the sender determines, for example, when you initiate the transfer process of the transfer unit service with the division. In the preferred embodiment, this decision is based on the optimization of resource transfer. An example of the logic performed during adjournment and management diversity, reflected in Fig.9.

Is depicted in Fig. 9 the logic of the decision on the transfer block transfer service with the division includes, after step 9-1 initialization) periodic determination (step 9-2) whether any base station, managed RCDS 1221the sender, a mobile connection to the MC. If at step 9-2 negative result is obtained, the execution who is becomes positive, that is, no base station, managed RCDS 1221the sender is not used by the mobile station sets the timer T1 (step 9-3). As you can see below, the timer T1 is used to counter potential ping-pong effect. As shown by steps 9-4 and 9-5, if the base station is controlled RCDS 1221the sender is added to a mobile connection with mobile station prior to the expiration time of the timer T1, the transfer potential BPOR is cancelled, and (step 9-6) 11 timer stops and returns to its original state before returning to step 9-2. If timer T1 expires before adding a base station managed by the RCDS 1221sender to a mobile connection to MS, are the stages 9-7 and 9-8. On stage 9-7 as the TFR, the recipient selects the other RCDS. Once you've selected the TFR recipient executes the migration process BPOR, as described in Fig.7 (and as represented by step 9-8 of Fig. 9).

In connection with the above-described step 9-7 in Fig.9 it may be that MS may be in radio contact with the base stations, some of which belong to other RCDS. For example, in the scenario depicted in Fig.10, the TFR 1221the sender can choose between RCDS 1222

In different variants of implementation are the different types shown in Fig. 9 the logic of the decision on migration management. While according to Fig.9 requires no base station is operated from the RCDS 1221the sender before transferring the management of diversity, other variants have different criteria of migration on the number of base stations managed by the RCDS 1221the sender and the TFR 1222the addressee. For example, in one embodiment, the criteria for transfer can be satisfied when the TFR 1221the sender controls only one base station participating in a mobile connection, and TFR 1222recipient controls the predetermined number (more than one) of the base stations participating in the mobile connection.

As an example of another variant of determining when to migrate the management of diversity, you can consider the information on the direction of movement of the mobile station. In this respect, the block 1421control RCDS can manage the database, obaama MS. Through analysis of such recording unit 1421control RCDS can determine the vector of the current move to the mobile station or the forecast, based on previous data, move the mobile station to use a vector or forecast to determine the point at which the transfer of the management of diversity can optimize resources area network radio.

Information on the direction of movement of the MS can be used as a factor when choosing among the many RCDS for the desired new location BPOR [see, for example, stage 9-7 selection in Fig.9].

Another option shown in Fig.9 the logic of the decision to transfer the management of diversity is based on the cost of transmission service. Under this option, it first determines the total transmission cost for an existing connection with MS (including all branches reaching all base stations). Then, for each potential TFR, which can be displaced managing diversity, determined the full cost to connect to MS (again including all branches reaching all base stations). The full cost is calculated using the defined operator or automatically configurable indicator and vkljuchaei he manages. Under this option, the transfer of the management of diversity occurs when TFR is defined, providing a lower transfer costs (including threshold limits) that differs from the current TFR of the sender.

Fig. 9A depicts an example of a decision to transfer the management of diversity, which is based on factors such as the cost of transfer, as defined above. Step 9A-1 depicts the beginning and the initialization shown in Fig. 9A decision logic. At step 9A-2 is determined by whether it's been a base station or removed from the set of base stations used in a soft handover of the mobile service connection. If there is no change in the composition of the set of base stations, shown in Fig.9A, the logic returns to step 9A-1, so that it is possible, accordingly, to control the composition.

If the composition of the set is modified at step 9A-3 creates a combined reserve of the alleged sites of the RCDS. United reserve does not include the site of the RCDS, which BOR is currently. Then at step 9A-4 is calculated dummy transmission cost for each proposed site of the TFR in the United reserve. Similarly, at step 9A-5 is calculated dummy transmission cost for a node, guyonne transfer BPOR. Cost effectiveness is determined by (1) finding the intended host with the lowest TFR fictitious value transfer, (2) by adding the factor limiting or threshold edge value to a fictitious transfer costs, the least expensive of the proposed site of the TFR, and (3) by comparing this value with a dummy value transfer node TFR, where is currently BPOR. If RCDS, where is currently BPOR, remains the least expensive in the transfer BPOR not necessary, and the logic returns to step 9A-1.

If at step 9A-6 is determined that the transfer BPOR efficient from a cost perspective, at step 9A-7 is selected as host of the TFR of the intended recipient node with the lowest TFR fictitious value transfer. Then at step 9A-8 triggers the transfer BPOR in the TFR recipient (selected at step 9A-7). If at step 9A-9 is determined that the transfer BPAR was successful, as shown in Fig.9A, the logic ends, as shown at step 9A-10. Otherwise, shown in Fig.9A logic is restarted by returning to step 9A-1.

The following calculation steps 9A-4 9A-5 to define a dummy value transfer for a typical CKP(i). For example, assume that there is a "j" base is station BS (I) is controlled by the controller CKP(r(j)). Then, the dummy transmission cost C(i) for CKP(i) is defined as follows:The value of "reference" is explained below, but in the way illustrated in Fig. 2, reference RCDS can be assumed as the TFR of the sender. The cost for the various compounds from the TFR to the RCDS can be set or entered by the operating team. Alternatively, you can use the information from the routing Protocol type PNNI (gateway private network) defined by the ATM Forum (asynchronous data transfer). One possibility is to use a number of intermediate switching nodes as an indicator. For example, the cost for option of switching between two nodes RCDS may represent the number of intermediate switching nodes in the transmission path between two nodes of the RCDS.

In some situations, the mobile connection for MS may be provided in parallel two or more blocks transmission service with explode (BPOR), for example, for different logical channels/service. An example of such situation is a mobile station having multiple services (e.g., multimedia services), in which each service parline requirements in terms of bit rate, time delay and other characteristics. In this example, one BPOR maintains a single logical channel. In the base station logical channels for such mobile connections are multiplexed with channel coding. Thus, for each logical channel has a connection base station - TFR(BPOR) - SMC". Even if the logical channels are processed together during transmission via the radio interface (for example, MS-BS), they can be processed separately after the base station. In this case, each BPOR can be transported independently, using the transfer process BPOR of the present invention. BPOR for signaling control channel performs the function of the TFR of the sender and, therefore, is transferred last.

Synchronization, as used here, includes the principle that supported the existing agreement in time for the radio interface, for example, frames are transmitted between base stations and mobile stations, for example, with a 10-millisecond intervals in a particular phase. Once the connections between the TFR 1222 recipient and all used base stations (e.g., 1262,1and BS 1262,2) will be installed between the TFR 1221OTP is Italia and RCDS 1222the destination base station transmits the frames received from the MS, as per block transfer service with explode (BPOR) 1302the recipient and the transfer unit service with explode (BPOR) 1301of the sender. The set of buffer blocks 168 straight line BPOR 1302receives frames from different (for example, both base stations. In the case of frames having the same frame number for the same connection, the selector 1662staff selects the frame with the best quality indicator [see Fig.8]. Frames direct line of communication sent to the TFR 1221the sender (at least before the TFR 1222the recipient will be requested transfer). BPOR 1302the recipient shows to block 1422control RCDS when it is set to sync.

In the return line BPOR 1302determines the initial departure time numbered frames of the reverse link based on the received numbered frames direct lines of communication, and begins to transmit numbered dummy frames return line [see Fig.8B]. Base station receive numbered dummy frames and serves the team on BPOR 1302to adjust its departure time, if frames arrive too early and the synchronization.

When the TFR 1222the recipient determines that the synchronization is established for direct communication line and a return line connection, CKP 1222recipient informs on RCDS 1221the sender, using the request switch operation 7-9 [see Fig. 9] . At this point, the TFR 1221the sender performs the process 7-10 switching, as described above. When the actual footage begins to flow from the RCDS 1222the recipient in each participating in the connection base station (for example, BS 1262,1and BS 1262,2), the base station begins to transmit (MS) frames received from the RCDS 1222the recipient, but not the frames received from the RCDS 1221of the sender.

If the total delay increases when using BPOR 1302RCDS 1222the recipient may be some actions. For example, if supported by the alignment of time relative to the SMC, BPOR 1302can send commands in SMC to configure its approval in time. However, during this configuration process, some frames may be lost. If the time alignment relative to the SMC are not supported, can occur "slippage" of frames. To avoid this problem, the initial connection must be us1).

Fig. 2-2C illustrate the transfer of the management of diversity, such as the transfer from BPOR 1301RCDS 1221on BPOR 1302RCDS 1222when the MS moves to use only BS 1202,11202,2driven from the RCDS 1222. Fig.11-11C show the stages retransfer control passing, when the MS moves back to use only BS 1201,21201,3driven from the RCDS 1221.

The processes and operations used in a reverse transfer of the management of diversity, especially as described in Fig.11A-11C, is clear from the analogy with the processes and operations described above relative to Fig.2-2B, respectively. However, since BPOR assigned to the TFR 1221after retransfer control passing is actually newly appointed, not necessarily the same as the previous BPOR 1301new BPOR RCDS 1221is indicated in Fig.11B-11C as BPOR 1301'.

It is shown in Fig.11-11C retransfer control passing is performed under the condition that BPOR 1302RCDS 1222connected via TFR 1221with the CCM 1241managing mobile connection. Thus, until the transfer of the management of diversity will not be in the KM 1241and BPOR 1302, (2) frames between BPOR 1302and BS 1261,2and (3) frames between BPOR 1302and BSM 1261,3[see Fig.11A]. SMC 1241connected to the TFR 1221.

Is depicted in Fig.11A-11C situation, when the line connection 132 between the TFR carrying so many frames can be eliminated if a suitable time (for example, between the points shown, for example, in Fig. 2B and Fig.11) are replaced SMC handling mobile connection. For example, traffic at line 132 of the connection between the RCDS can be reduced if the mobile connection is changed so that it uses the CCM 1242and not CCM 1241. When performing such replacement SMC transfers control passing back to the TFR 1221as shown in Fig.12-12C, and not as in Fig. 11-11C. In the form shown in Fig.12C is time to consider whether you need a mobile connection to change back to use the CCM 1241and not CCM 1242.

The above-described methods, as appropriate to the invention, included RCDS 1221the sender and the TFR 1222recipient, one of which is connected to SMC performing mobile connection without intermediate RCDS. Fig.13 and Fig.13A depict different way, which Moby" TFR is a network controller, most closely connected to a suitable digital maps for mobile connections, and is therefore the RCDS, which performs the switching of the transfer control passing to join the new BPOR.

In fact, all the methods of the invention include three logic controller to perform the transfer of the management of diversity: (1) "reference" RCDS, which performs the switching to connect the new BPOR, (2) TFR "sender", which manages an old BPOR and which initiates the process of transfer of management of diversity, and (3) TFR "recipient", which manages the new BPOR (and which becomes RCDS sender after the completion of the migration process management diversity). In the form shown in Fig.2-2V previous method (TFR 1221functioned and how the TFR of the sender, and as a reference to the TFR. On the other hand, shown in Fig.11-11C and Fig.12-12C ways RCDS 1222functioned as a reference TFR 1220.

In the form shown in Fig.13 and 13A method corresponding to the invention, reference TFR 1220toggles, whereby the management of diversity is transferred from BPOR 1301RCDS 1221sender BPOR 1302RCDS 1222the addressee. In Fig. 13 shows the situation before the transfer of control is rendered sequence of operations of the migration process management diversity according to the method according to Fig.13-13A (i.e. the way in which the switch performs "reference" TFR different from the TFR of the sender or the TFR recipient). Operation 14-1 depicts the TFR 1221the sender, receiving a decision that should be made to transfer management of diversity. This solution can be implemented according to any of the above various criteria, such as criteria, as shown in Fig.9 or Fig.9A. After the implementation of the decision to transfer the management of diversity operation installation 14-2 RCDS 1221the sender sends to the reference TFR 1220the message "initiate transfer of the management of diversity". Then, during the operation 14-3, reference TFR 1220sends a message requesting transfer of the management of diversity in the TFR 1222the addressee. In response to this operation 14-4 illustrates the TFR 1222the recipient, who shall BPOR 1302as the recipient of the transfer. The details of assigning BPOR operations 14-4, like various other operations of Fig.14, understandable given the same operations described above in connection with Fig.7. After completion of the assignment BPOR, during the operation 14-5 RCDS 1222the recipient sends the reference TFR 1220the message "the continuation of the transfer of the management of diversity".

After RCDS 1222and the purpose 14-6 reference TFR 1220sends the TFR 1222the recipient of the message "establishing a transmission path". The message about the establishment of a transmission path operations 14-6 serves to connect the transmission line between the TFR between the reference TFR 1220TFR 1222the addressee. Message operations 14-6 can be sent through intermediate switching nodes or via the GSM network. In some embodiments, the implementation of the set operation 14-6 connection can be completely installed from the reference TFR 1220each active base station. After the establishment of the transmission line between the TFR during the operation 14-7 RCDS 1222the recipient sends the reference TFR 1220the message "connecting the transmission path".

Operation 14-8 - direction from 1222the recipient of the message "installation of additional line for each active base station served by the RCDS 1222destination for mobile connections. In response to this, each active base station returns the message "the response on the establishment of an additional line on the RCDS 1222the addressee. Then, when the operation 14-10, synchronization occurs between the TFR 1222recipient and each of the active base station.

When receiving the synchronization in btvet on it, during the operation, 14-12, reference TFR 1220performs the switching process. After completion of the switching operation 14-13, reference TFR 1220sends the TFR 1221the sender of the message "release BPOR". In response to this, during the operation 14-14, RCDS 1221the sender returns the message "confirm release BPOR". Further, as shown by operation 14-15, RCDS 1221the sender sends to the TFR 1221sender message "liberation transmission path, as reflected by the operation 14-16.

During the operation 14-17 RCDS 1221the sender sends to the TFR 1222the recipient of a number of messages "liberation transmission path", one message for each active base station. In response to this, during the operation 14-18 RCDS 1222the recipient returns the same number of messages (one for each base station) "complete release of the transmission path on the RCDS 1221of the sender.

During the operation 14-19 RCDS 1221the sender sends to the reference TFR 1220the message "complete release transfer BPOR". Reference TFR 1220in response, sends on RCDS 1222the recipient of the message "confirm switch" during the operation, 14-20. After receiving the message, "confirmed the communication line for the old BOR" (14-21). In response to this, each active base station sends to the TFR 1222recipient message "response on the release line.

Each of the messages described in connection with Fig.14, can be sent through intermediate switching nodes. Moreover, various operations or combinations of operations can be performed in parallel. For example, operations 8-11 can be performed in parallel with operations 6-7. In addition, the operation 15-16 may run concurrently with the operation 17-18. Message (e.g., signals) to establish, connect, release and completion of the transmission path, as used here, such ISUP (subscription part of a digital network with integrated services).

It is shown in Fig. 13 and Fig.13A method represents a generalization of the previously described methods. Accordingly, it should be clear that the present invention relates to systems having any number of nodes network management radio communications.

The present invention also applies to situations in which multiple transmission service with explode (BPOR) move together. In Fig.15 shows the General operations performed together with the transfer of multiple BPOR, in particular in the number "N" blocks BPOR. During the operation 15-1 RCDS adresar recipient. During the operation 15-3 each active base station is connected with N blocks BPOR recipient cell. Then reference the TFR performs N operations switch (15-4). As shown in operation 15-5, on each of the N connections, the base station transmits data from BPOR recipient when they arrive, and before the receipt of these data from BPOR sender.

However, it should be clear that the switch from BPOR sender on BPOR recipient is not required to hold simultaneously for all N connections. The switch should not be performed for all N connections with the mobile station.

In the described variants of implementation, for simplicity, shows only a limited number of base stations connected to each of the RCDS. It should be clear that each of the RCDS can be connected different and large number of base stations including a base station), and, accordingly, depends on the number of buffer blocks of the inverse and direct communication lines in each BPOR. In addition, it should be clear that the access network of the radio communication, such as network 120 access to radio, can have the TFR and the base station, different from that shown in addition to it.

In the above description of the interface units is hasy can be combined in a single unit, the network interface migration.

In the variants shown here the implementation of the connection between the TFR is depicted as a straight line. It should also be borne in mind that such a connection can also switch through any intermediate node. For example, in the embodiment, in which this connection, the intermediate node can be CSM, RCDS or node in the public switched telephone network of General use (PSTN).

In addition, it is obvious that the TFR is most likely connected with several other RCDS (for example, up to eight), and that you can provide, respectively, the set of communication lines between the TFR. So, here is the link to the connection lines move between the TFR refers to the corresponding one of the potential of many of these communication lines.

Obviously, many of the RCDS can be located with the formation of "clusters", and that outside this cluster is represented as a large "logical" TFR. Thus, the physical relationship between the TFR may exist within a larger logical TFR, as well as between clusters RCDS.

All the methods described transfer control diversity suggest that the transfer of service (i.e. adding and/or removing branches of base stations) supersnout benefits including the optimization of network resources of the region. For example, can be reduced duration of use of the branches between the base stations and blocks transmission service with the division. In addition, the present invention conserves resources transfer lines between the TFR.

Claims

1. The method of operation of a communication system including a first control unit diversity to perform join operations, connection and separation connections for mobile connections, supported by multiple base stations, the appointment of the second control unit diversity to perform join operations, connections and separation of compounds only after determining that the join operation, connection and separation of the compounds must be transferred from the first control unit diversity, and determining that the join operation, connection and separation joints shall be transferred in accordance with the adding or removing base stations participating in the management of diversity for mobile connections.

2. The method according to p. 1, wherein determining that the operation is.

3. The method according to p. 1, wherein determining that the join operation, connection and separation of compounds need to be transferred, is carried out in accordance with the directional movement of the mobile station participating in a mobile connection.

4. The method according to p. 1, characterized in that the first control unit diversity is located in the first node, the first node controls the first set of base stations, and the second control unit diversity is located in the second node and the second node controls the second set of base stations.

5. The method according to p. 1, characterized in that it further includes the operations of the switch after the completion of the purpose for excluding the first control unit diversity of mobile connection.

6. The method according to p. 5, characterized in that it further includes routing frames return line connection from the base station participating in a mobile connection to the first control unit diversity and to the second control unit explode after appointment and before performing a switchover operation.

7. The method according to p. 5, characterized in that the switching operation is performed in the reference node.

8. The method according to p. 1, characterized in that the control unit diversity of mobile connection and in connection with the switch shall select the second switching center of the mobile stations of the center for replacement of the first switching center for managing mobile connection.

9. The method of operation of a communication system including a first control unit diversity to perform join operations, connection and separation connections for mobile connections, supported by multiple base stations, the appointment of the second control unit diversity to perform join operations, connections and separation of compounds only after determining that the join operation, connection and separation of the compounds must be transferred from the first control unit diversity, and determining that the join operation, connection and separation joints shall be transferred in accordance with the adding or removing base station, when it determines that a join operation, connection and separation of compounds need to be transferred, when there is a predetermined relationship between the first number of base stations served by the node, which is the first control unit diversity, and the second number of base stations served by the node, which must be the second control unit diversity.

10. The method of operation of a communication system including a first unit providentia, supported by multiple base stations, the appointment of the second control unit diversity to perform join operations, connections and separation of compounds only after determining that the join operation, connection and separation of the compounds must be transferred from the first control unit diversity, the first control unit diversity is located in the first node, the first node controls the first set of base stations, and the second node controls the second set of base stations, and perform the selection between the first node and the second node as the location of the second control unit diversity.

11. The method of operation of a communication system including a first control unit diversity to perform join operations, connection and separation connections for mobile connections, supported by multiple base stations, the appointment of the second control unit diversity to perform join operations, connections and separation of compounds only after determining that the join operation, connection and separation of the compounds must be transferred from the first control unit by passing, running, I can pay tithing control unit diversity of mobile connection the first control unit diversity is located in the first node, the second control unit diversity is located in the second node, and referred to the reference node is physically separated from the first node and the second node.

12. Communication system containing a set of nodes, each of which is arranged to control a corresponding set of base stations, the first control unit spacing, which is the first of many nodes, and the first control unit diversity performs a join operation, connection and separation connections for mobile connections, supported by multiple base stations, the first node is configured to assign the second control unit diversity to perform join operations, connections and separation of compounds only after determining that the join operation, connection and separation of the compounds must be transferred from the first control unit diversity, and determine what joins compounds and separation joints shall be transferred when there is a predetermined relationship between the first number of base stations served by the node, where the first choice is to remain the second control unit diversity.

13. The system under item 12, wherein determining that the join operation, connection or separation joints shall be transferred based on the transfer costs.

14. The system under item 12, wherein determining that the join operation, connection and separation of compounds need to be transferred, is carried out in accordance with the directional movement of the mobile station participating in a mobile connection.

15. The system under item 12, wherein the first node selects one of the other nodes in the node set of nodes as the location for the second control unit diversity.

16. The system under item 12, characterized in that the second control unit by passing requests to the first control unit explode on the operation switch after the completion of the assignment, to eliminate the first control unit diversity of mobile connection.

17. The system under item 16, characterized in that during the time of the destination base station participating in a mobile connection that routes frames return line connection control unit spacing and the second control unit diversity.

18. The system under item 12, characterized in that operarii configured to control a corresponding set of base stations, the first control unit spacing, which is the first of many nodes, and the first control unit diversity performs a join operation, connection and separation connections for mobile connections, supported by multiple base stations, the first node is configured to assign the second control unit diversity to perform join operations, connections and separation of compounds only after determining that the join operation, connection and separation of the compounds must be transferred from the first control unit diversity, and the switching operation is performed in the reference node, the first control unit diversity is located in the first node, the second control unit diversity is located in the second node and said reference node is physically separated from the first node and the second node.

20. The method of operation of a communication system including a first control unit diversity to perform join operations, connection and separation connections for mobile connections, supported by multiple base stations, a mobile station, determining that the join operation connection with the participates in the connection with the mobile station the base station is controlled by a specific web controller, the operation of switching from the first control unit passing to the second control unit diversity, thus determining whether the merge operation connection and separation of the compounds to be transferred to the second control unit diversity for mobile connection is carried out, did a predetermined time after determining that neither one base station controlled by the network controller is not involved in the connection with the mobile station.

21. The method of operation of a communication system including a first control unit diversity to perform join operations, connection and separation connections for mobile connections, supported by multiple base stations, a mobile station, determining that the join operation, connection and separation joints shall be transferred to the second control unit diversity, in accordance with the fact whether in connection with a mobile station, a base station controlled by a specific web controller, the operation of pnie, should the join operation, connection and separation of the compounds to be transferred to the second control unit diversity, is carried out in accordance with the prediction of the direction of the future movement of the mobile station.

22. The method of operation of a communication system, comprising providing first and second control blocks explode, the first control unit diversity to perform join operations, connection and separation connections for connections that are supported by multiple base stations, a mobile station, forecasting the future direction of movement of the mobile station, determining whether to use the second control unit diversity to perform join operations, connections and separation of compounds based at least in part on the predicted future direction of movement of the mobile station.

23. The method according to p. 22, characterized in that the said step of predicting includes predicting the future directions of movement of the mobile station based, at least in part, on the previous data of the moving mobile station.

 

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FIELD: radio communications.

SUBSTANCE: proposed method intended for single-ended radio communications between mobile objects whose routes have common initial center involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile object, these intermediate transceiving drop stations being produced in advance on mentioned mobile objects and destroyed upon completion of radio communications. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning of several radio communication systems.

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

1 cl, 7 dwg, 1 tbl

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