Method for transmitting data packets in mobile radio-communication system and an appropriate mobile radio-communication system
FIELD: mobile communications engineering.
SUBSTANCE: after switching connection between first transmitting station and receiving station to second transmitting station packets (DPm') of data are transmitted to receiving station through new communication channel. Second transmitting station during the process has no information concerning status of transmission of packets (DPm) of data, which were sent prior to switching of connection.
EFFECT: increased signal transmission speed during rigid service transfer.
2 cl, 8 dwg
The invention relates to a method for transmitting packet data in a mobile radio system, as well as to the corresponding mobile radio system.
In mobile radio systems such as GSM (global system for mobile communications) and UNTS (Universal mobile telecommunications system) data and the data packets are transmitted from a fixed network by transmitting stations via the radio interface to the receiving stations. Figure 1 is a schematic and simplified illustration of a conventional UMTS system. Fixed network CN via data lines Iu is associated with a UTRAN (Universal terrestrial access network radio). The UTRAN system consists of several subsystems RNS (network Subsystem radio), which respectively have a data line Iu to the stationary network CN. With each of the data lines Iu connected controller RNC (the controller of the radio communication network), which again through connections Iub is connected to multiple base stations Century, With each station can be assigned (for example, through sector antennas) several cells of the mobile communication system. The interface between the UTRAN and the user device UE, which in the GSM system called mobile station is implemented through an interface Uu by connecting the radio. Controllers RNC various subsystems RNS, as a rule, SV is explained via an optional interface Iur. This additional interface Iur necessary for the so-called transfer service (change of cell).
During the flexible change of the cell the user device UE is simultaneously connected, at least two base stations, which may be subject to different controllers RNC. As for data exchange between the user device UE and stationary network requires only the connection of the Iu, the data flow is controlled by only one controller RNC, called the serving RNC (SRNC). If both base stations are governed by different controllers RNC, only one of the controllers RNC is the controller SRNC, while the second controller is defined as "drift" RNC (DRNC). The controller defined as DRNC, carries out the data transfer from a fixed network CN via an optional interface Iur and thereby through the controller SRNC.
Each controller RNC manages the connection (RLC) using memory) RS, in which the data packets are stored, which data packets were transmitted, must again be passed or yet to be passed. However, when the flexible transfer (change of cell) this information status data is stored in the controller SRNC. With such a ZU US for information status and data packets,the user device UE also has stored information about what data is successfully decoded, and for which data require re-transmission. If successful, the decoded data to a user device UE sends an acknowledgement ACK to the procedure link control (RLC corresponding controller RNC. If the decoding is unsuccessful, then instead sent a message to support the NACK.
While with flexible transmission service at the same time there is a connection of the user device UE, at least two base stations, when a rigid transfer a connection from one base station is transmitted to the second base station only when the connection with the first base station before it ended. As in the case of flexible transmission service, the transmission connection can occur between base stations In the same controller RNC, and between base stations In different controllers RNC. Anyway, after a hard transmission service must be agreed stored information of the status of data transfer between the user device UE and the corresponding controller RNC, and, if necessary, the contents of the memory of the previous controller RNC should be transferred to the new controller RNC. This negotiation information of the status of the data transfer takes time and slows Voss is the resolution of the data after a hard transmission service. Therefore, it is impossible to achieve high data rates.
The same is true in terms of speed of data transfer with the fast cell selection radio, with which the user device UE would like to connect. User device UE has a set of possible cell radio to choose, which one of them can be connected with the stationary network CN. User device UE determines now the cell radio with the best properties and signals in the ascending line of communication, in which cell it would be desirable to obtain service. This principle is defined as a fast cell selection (FCS). If there is a change in the selected cell when connected, the fast cell selection FCS manifests the same problem, and that is hard when the transmission service. Coordination of information stored status data needs and the procedure may be performed as described in the previous paragraph. Therefore, high speed data transmission is possible as long as the procedure FCS.
Promising mobile communication systems will require high data transmission speeds and have to support them. An example is the system HSDPA (Packet access high-speed straight line), which is currently being discussed Research Groups is th 3GPP (a partnership Project to create systems 3rd generation) system UTRA FDD and TDD (Universal terrestrial radio access system duplex time division and frequency division). To achieve high speed data transfer management transfer data is transferred from the controller RNC to the base station, i.e. the base stations provides additional ZU BS, which stores the data packets and information status data. In this way, time is saved, since the management data transmission eliminates the transmission channel between the controller RNC and the base stations Century Also using this new memory BS in base stations In a rigid transfer operation is carried out as described above. Suggestions for this are, for example, in the message of Motorola on the occasion of the meeting #18/00 Working Group TSG-RAN 2 in Edinburgh, 15-19 January 2000, entitled "Fast Cell Selection and Handovers in HSDPA" ("Fast cell selection and change of cells in HSDPA") (R2-A010017). As described above, the data transmission is resumed when a new base station is informed about the status of data transmission, that is, when the content memory previous base station moved to a new base station C. This synchronization information status between the old and new base stations occurs In connection Iub controller RNC, if necessary through additional Iur interface and/or through the user device UE over the radio interface. The boundary conditions for HSDPA system are defined, this clicks the zoom, by means of the finite time required to transfer the content memory previous station (data packets and transmission status of the data packets in the memory BS new base station Century
In EP 0695053 AS described transmission service for the mobile computing device is carried out from the previous base station to the new base station. Status Protocol data reported to the new base station or through the relevant information mobile computing device, or information from the previous base station, or a combination of both types of information.
In DE 10017062 A1 describes a method of operation of the mobile radio network, in which when you change the connection of the mobile station from the first base station to the second base station is transmitted for specific connection information from the first upstream network node to the second upstream network node, so that after changing the connection to continue the transfer of data blocks to the mobile station from the current state.
The basis of the invention lies in the challenge to create a method by which when the cell changes associated with the user device UE (hard transmission service or fast cell selection)may be provided with a higher data transmission rate, compared with what was achieved so far.
This C the cottage is solved by the method according to paragraph 1 and the mobile communication system according to the paragraph 7 of the claims.
Preferred embodiments of the invention are characterized in the dependent claims.
In accordance with the invention method for transferring data packets from the first transmitting station to a mobile receiving station in the mobile radio connection is established between the first transmitting station and the receiving station through the second transmitting station, and the first data packets are transmitted from the first transmitting station to the second transmitting station for transmission to the receiving station. Information about the first data packets that were unsuccessfully transmitted through the second transmitting station to the receiving station, is determined by the second transmitting station and/or receiving station. This information gives, therefore, the status information data. You can switch the connection to the third transmitting station, and after switching the connection of the second data packets are transmitted from the first transmitting station to the third transmitting station, and thence to the receiving station. Information about those early batches that were unsuccessfully transmitted through the second transmitting station to the receiving station, only after transmission of the second data packets are transmitted in the first transmitting station and/or a third transmitting station. This method lets you change the connection, as is the case the result in the transmission of service (change of cell) or fast cell selection, immediately to transmit data packets without the third transmitting station and/or the first transmitting station had information about successful or unsuccessful transmission before data packets, that is, possessed information status data specific to the second transmitting station or the receiving station. Corresponding to the invention, the method can provide a higher data transfer rate when changing connections, compared with how it was possible when before continuing with the data first transmitted information of the status of data transmission from the second transmitting station to the third transmitting station and/or to the first transmitting station. This method is especially suitable for data transmission with high data rates, such as in the system packet access high speed direct line (HSPDA).
In the first embodiment of the invention the method is implemented in a cellular mobile communication system. Here the first transmitting station is a controller, second and third transmitting stations are base stations and the receiving station is a custom device.
The second variant embodiment of the invention implements a method in an ad hoc network (also called a self-organizing network). In this special network that is in communication network, which can provide is to be formed exclusively of mobile stations, the first transmitting station is a mobile station or station access. Under the station access refers to a fixed station that provides access to the fixed network. The second and third transmitting station and the receiving station are mobile stations.
Preferably the second data packet does not match any one of the first data packets. In this way it is guaranteed that no data packets are not transmitted several times. This can further increase the speed of data transmission when you change the connection.
In an alternative embodiment of the invention the second data packets are the same as those of the first data packets, which are transmitted from the first transmitting station to the second transmitting station, but not to switch the connection from the second transmitting station to the receiving station. Due to such execution immediately when the switch connection is relayed data packets that the user device should be obtained during the data transmission by the first transmitting station. These data packets are received at the user device only once and before the third transmitting station knows the status of the data transfer. This is even more improves the speed of data transfer.
Suitable are those of the first pack is economical data, yet being transmitted from the first transmitting station to the second transmitting station, but was not passed before switching the connection from the second station to the receiving station, to determine on the basis of the estimated duration of the transmission from the first transmitting station to the second transmitting station or the receiving station. On the basis of the estimated duration of the transmission, that is based on the time it takes for the data packet, so that after transmission through the first transmitting station to be adopted by the second transmitting station or the receiving station, the first transmitting station can specify which data packets will not be able in any way to get into a receiving station, although they were sent before implementation of the change of connection from the first transmitting station. These data packets can then be transmitted from the third transmitting station, without requiring that the broadcaster had information status data.
The mobile radio system is equipped with the necessary components for implementing the method. The invention is described below in the examples illustrated by the drawings, which shows the following:
figure 1 - system UMTS, corresponding to the prior art;
figure 2 is a fragment corresponding to the invention of the cellular mobile communication system;
F. the D.3-7 - the data transfer process when you change the connection;
Fig - another option related to the invention of the mobile communication system in the form of special (self-organizing network.
The invention is described below on the example of the UMTS system. Of course, the invention can also be applied to other Mobile radio systems. This applies in particular to the GSM systems, self-organizing networks (see Fig) and mobile radio systems of the fourth generation.
Figure 1-8 the same elements denoted by the same reference position.
Shown in figure 2 fragment of the UMTS system shows the first, second and third transmitting station is shown in the form of a controller RNC, the first base station B1 and the second base station B2. There is a connection between the receiving station in the form of user device UE and the first base station B1 via the transmission channel 1. Through this connection, the first packet DPm data transmitted from a fixed network CN via the Iu interfaces and Inb1 to the user device UE. Controller RNC has memory, denoted as RS. The base station B1, B2 from the memory device, denoted as BS, and the user device UE from the memory device, designated as US, contain a processor P, which can be determined the following information I. These ZU RS, BS and US are used to store packets of data and information on the status data for each data packet.
In the first base station B1 transmitted from the controller RNC data packets DPm stored in the memory BS and thence transmitted to the user device UE. In the first base station B1 and the user device UE via processor P is determined by the information I, which indicates which of the first data packets DPm were unsuccessfully transmitted via the first base station B1 to the user device UE. Thus this information I indicates which of the first data packets DPm from the user device UE to the first base station B1 was transmitted signal NACK (not acknowledge), and some of the first packets DPm data were transferred from the controller RNC to the first base station B1, but not yet transmitted to the user device UE. Controller RNC may be based on the content of its memory RS to determine which data packets it has transmitted to the first base station B1, and which data packets have not yet been transferred from him to the first base station B1.
If the quality of the channel 1 transfer falls below the minimum threshold, while at the same time for potential channel 2 transmission via the second base station B2 may the best quality connection, there is a change in the transmission channel, that is, the switching of the connection from the first base station B1 to the second basic the station B2. Immediately after this, the switch connections for the second packet DPm' data from controller RNC is transmitted from the second base station B2 and from it to the user device UE. These latter packages DPm' data before that was not transferred to the first base station B1. Controller RNC can guarantee this due to the fact that it is based on the data transmission status in its memory RS transmits only the second packets DPm' data with ID numbers m' from his memory RS, which he handed over to the first base station B1. In this way directly after changing the connection again becomes possible to transmit data to the user device UE. Only after or during transmission of the second packet DPm' data to the user device UE, the second base station B2 is informed of those of the first packets DPm data, which before it was unsuccessfully transmitted through the first base station B1 to the user device UE, i.e. for which the user device UE has sent a NACK signal to the first base station B1, or which have been stored in the first base station B1, but not yet transmitted to the user device UE. This information I transmitted from the user device UIE through the radio interface and from the first base station B1 via interfaces Iub1 and Iub2 second basic is th station B2. After the transfer of the information I and the simultaneous transmission of the marked information of the first packets of data through interfaces Iub1 and Iub2 is the transmission of these data packets and system mobile radio resumes regular data transfer.
Figure 3-7 shows the transient process data before and after the switching of the connection from the first base station B1 to the second base station B2. Tables show the contents of the memory RS, BS, US respective stations at different points in time. In the first column ("new") ZU RS controller RNC are given identification numbers of the data packets that the controller RNC received from the fixed network CN, but not yet transferred to the memory BS first base station B1 or the second base station B2. In the corresponding first column ("new") ZU BS first base station B1 and the second base station B2 are given identification numbers of the data packets that are accepted from the controller RNC, but not yet transmitted to the user device US. In the corresponding second column ("passed") ZU RS, the BS provides the identification number of already transmitted data packets, while in the third column ("re-passed") the identification numbers of the data packets that after receiving the NACK signal was retransmitted. In ZU US user device UE first is th column (ASC) indicates, any data packets have been successfully decoded, while the second column (NACK) are the identification numbers corresponding to which data packets have not been successfully decoded and were requested for retransmission. In the following description, the notation "data package n" means the data packet with the identification number n.
According to figure 3, the controller RNC transmits during a connection on channel 1 transmitting first data packets 1-4 ("passed") as the first packet DPm data (see figure 2) to the first base station B1. The following data packets 5-9 ("new") are still in a waiting queue and wait for their transfer. The first base station B1 has data packets 1-3 as transferred (the"transferred"), while the data packet 4 though and adopted, but not yet transmitted to the user device UE. User device UE has data packets 1 and 3 ("ASC") as the decoded successfully, but the data package 2 was accepted with errors (NACK) and requested for re-transmission.
For clarity in the subsequent drawings are not shown further transmission of new data packets in parallel with the updating of the contents of the memory. However, such parallel transmission is possible.
Figure 4 the contents of the memory RS controller RNC remained unchanged. After the transfer of the signals ACK and NACK signals from the floor is saatlinskogo device UE to the base station B1, the data packet 4 in the first base station B1 is ready for transmission, not yet submitted. The base station B1 is now informed that the data package 2 must be retransmitted ("re-passed"). User device UE has not yet received successfully this data package 2, so for this package still retained the status of "NACK". Information on the status of the "ACK" for data packets 1 and 3 are no longer needed and was removed.
If this condition occurs the transfer, then there is the situation shown in figure 5. ZU first base station B1 and the user device UE remain unchanged. From controller RNC, however, are transmitted new data packets 5-7 ("passed") as the second packet DPm' data (see figure 2) to the second base station B2 (see the second column). Question marks in the column of the second base station B2 indicates that the second base station B2 to this point in time has no information about the process prior transfer (channel 1 transmission figure 1 and 2).
According to Fig.6, now is the transmission of data packets 5-7 ("passed") through the second base station B2, while at the same time or in the continuation of this program memory of the first base station B1 and the user device UE are consistent with the second base station B2 (synchronization status). When the synchronization status is as coordination sohraneno is in memory BS first base station B1 of the status information data quality information I, and the transmission of data packets. In this example, transmitted, thus, the data packets 2 and 4, as well as relevant information status (I) when the synchronization status. The memory of the user device UE receives this already, of course, information about the successful transmission of data packets 5 and 7, in addition to even stored the information in the status data packet 2.
After updating the memory of the second base station B2, it is respectively the state of the memory of the first base station B1 (see Fig.7), that is, the data packet 4 in the first column and the data package 2 in the third column. Also in the third column is the data packet 6, for which the user device UE has requested retransmission.
According to the invention, first through the second base station B2 is transmitted first data packets 5-7 before you perform the synchronization status. Compared with this, according to the prior art, the transmission of data packets 5-7 would be carried out only after the synchronization status.
The first base station B1 and the second base station B2 in the example implementation subject to only one controller RNC. However, corresponding to the invention the method can be transferred to the situation when the first base station B1 and the second base station B2 belong to different USB circuits the frames RNC (see 2). In this case, synchronization status, you additionally need the Iur interface.
In another embodiment, the controller RNC knows the estimated transmission time of data packets to the first base station B1 or the second base station B2 or user device UE. So that it can calculate or estimate whether you can transmit to the user device UE data package 4 before transfer. If it turns out that the transfer, as can be seen from figure 5 for the data packet 4, can not be carried out before the transfer, the controller RNC may, of course, to transmit the data packet 4 together with the data packets 5-7 and thus further enhances the speed of data transmission during the shift of the connection. This case presents indicated in brackets the number 4 in the MD BS of the second base station B2. Estimated transmission time controller RNC can determine the maximum data rate for the first batch DPm data from the first base station B1 to the user device UE and the delay in the transmission of the first data packet DPm controller RNC to the first base station B1. The delay in the transmission to the first base station B1 is known to the controller RNC of the previous transmission and can range from about 10 to 100 MS. Large values of time delay is achieved at the same time, especially in the second case, when packet data is required Iur interface, that is, if the data transfer involving various controllers RNC. If, for example, the estimated transmission time is equal to 100 MS, the controller RNC may come from the fact that the data packets, which he passed for 80 MS (100 MS excluding guard interval 20 MS in this example) before transfer to the first base station B1, can no longer be transmitted to the user device UE. These data packets controller RNC may immediately transmit to the second base station B2 together with the data packets not yet transmitted to the first base station B1.
Corresponding to the invention method can also be used in specialized (self-organizing) network, as shown in Fig. In this case, the first data packets DPm or transmitted from the first mobile station MS1 or from the station access ZS to the second mobile station MS2 and from there to another mobile station MS4 as a receiving station. The second data packets DPm's are transmitted to the third mobile station MS3 and from there to another mobile station MS4. In the case of station access we are talking about a fixed station, which (similar to controller RNC in the UMTS system) provides the user stations of the self-organizing network access to a fixed network CN. The mobile station MSi have matched the existing ZU S for packets of data and information status data and the processor P to determine the information I. Except another denote transmitting stations and the receiving station, the process corresponding to the invention method in a self-organizing network, as shown in Fig identical to the embodiment described above for the cellular system (Fig.2-7).
1. A method of transferring data packets from the first transmitting station (RNC, MS1, ZS) to the mobile receiving station (UE, MS4) in the mobile radio system, in which
establish a connection between the first transmitting station (RNC, MS1, ZS) and the receiving station (UE, MS4) through the second transmitting station (B1, MS2),
transmit the first packet (DPm) data from the first transmitting station (RNC, MS1, ZS) to the second transmitting station (B1, MS2) for transmission to the receiving station (UE, MS4),
determine a second transmitting station (B1, MS2) and/or in the receiving station (UE, MS4) information (I) about those early batches (DPm) data unsuccessfully transmitted by the second transmitting station (B1, MS2) to the receiving station (UE, MS4),
carry out switching of the connection to the third transmitting station (B2, MS3),
after switching the connection of the second packets (DPm') data transfer from the first transmitting station (RNC, MS1, ZS) to the third transmitting station (B2, MS3) and pass them out to the receiving station (UE, MS4),
and information (I) is passed only after the transmission of the second packet (DPm') data to the first is erediauwa station (RNC, MS1, ZS) and/or to the third transmitting station (B2, MS3).
2. The method according to claim 1, characterized in that the said method is carried out in a cellular mobile radio system, the first transmitting station is a controller (RNC), the second and third transmitting stations are base stations (B1, B2), and the receiving station is a user device (UE).
3. The method according to claim 1, characterized in that the said method is carried out in a self-organizing network, the first transmitting station is a mobile station (MS1) or station access (ZS), the second and third transmitting station and the receiving station are mobile stations (MS2, MS3, MS4).
4. The method according to one of the preceding paragraphs, characterized in that the second packets (DPm') data does not match any one of the first packages (DPm) data.
5. The method according to claims 1, 2 or 3, characterized in that the second packets (DPm') data coincide with those of the first packet (DPm) data that has been transmitted from the first transmitting station (RNC, MS1, ZS) to the second transmitting station (B1, MS2), but was transmitted from the second transmitting station (B1, MS2) to the receiving station (UE, MS4) is not before switching connections.
6. The method according to claim 5, characterized in that the second packets (DPm') data based on the estimated duration of the transmission is passed from the first transmitting station (RNC, MS1, ZS) to the second transmitting station (B1, MS2) is whether the receiving station (UE, MS4).
7. System for mobile radio communications with the first, second and third transmitting stations (RNC, B1, B2; MS1, MS2, MS3, ZS) and the mobile receiving station (UE, MS4), in which the first transmitting station (RNC, MS1, ZS) and the second transmitting station (B1, MS2) is designed so that the first packet (DPm), this can be transmitted over the connection from the first transmitting station (RNC, MS1) to the second transmitting station (B2, MS2), the second transmitting station (B1, MS2) and the receiving station (UE, MS4) is designed so that the information (I) about those early batches (DPm) data unsuccessfully transmitted by the second transmitting station (B1, MS2) to the receiving station (UE, MS4), is determined by the second transmitting station (B2, MS2) and/or the receiving station (UE, MS4), and there is a means for information transfer (I) to the first transmitting station (RNC, MS1, ZS) and/or to the third transmitting station (B2, MS3) only after you switch the connection to a third transmitting station (B2, MS3), and second packages (DPm') data transmitted from the first transmitting station (RNC, MS1, ZS) to the third transmitting station (B2, MS3) and thence to the receiving station (UE, MS4).
FIELD: digital communications, in particular digital television.
SUBSTANCE: method for transferring digital information in digital communications network, containing multiple transport flows, each of which transports at least one table concerning a group of services, containing information, concerning certain commercial group of services, includes transfer in one of said transport flows of at least two different tables concerning groups of services, each of which contains information, concerning appropriate separate commercial group of services, and also transfer in current transport flow of at least one other table, containing - for at least current transport flow - a list of values identifying groups of services, to make it possible to match said at least two tables concerning groups of services with appropriate transport flow and make possible a loading from current transport flow of appropriate one of tables concerning groups of services.
EFFECT: higher efficiency.
3 cl, 6 dwg
FIELD: context invocation in first network for telephone call transfer and/or transaction through first and second network.
SUBSTANCE: procedure is started with installation of applied protocol, for instance H.323, H.248, or communication session initiation protocol in first network using transfer of service signals or context specified by default. Applied protocol message conveyed from second network serves as basis for identifying information about functional capabilities which is used for context invocation. In this way functional capabilities can be coordinated in advance and context can be invoked, for instance, in the form of secondary context both for telephone calls and/or transactions coming from mobile device, and for telephone calls and/or transactions terminating in mobile device. So, proposed method and system can dispense with backup protocol for transmitting service signals associated with functional capabilities to second network.
EFFECT: reduced load associated with service signal transfer.
22 cl, 4 dwg
FIELD: computer science.
SUBSTANCE: device can be used in multiple access channel. Device has random numbers generator 1, synchronizer 2, counter 4, elements AND 3,6,87, RS trigger 5, comparison block 7, clock pulse generator 15, query analyzer 91-9k, address analysis block 10, multi-input elements OR 11,12, counting block 13, conflict prevention block 14, interconnected by appropriate links.
EFFECT: higher accessible bandwidth of channel.
FIELD: communication networks.
SUBSTANCE: method includes recording all talks of packet commutation systems in data storage, containing operations for transferring output packets of information in forward direction from output port A to input port B, and input information packets in backward direction from input port B to output port A, each packet containing fields of information concerning destination address, number of packet, timestamp, calendar time and actual information, while from the side of output port A each information packet, sent to primary destination address from output port A to input port B and each information packet, sent to primary destination address from input port B to output port A, is sent to secondary destination address - position of database, and content of all talks of communication network subscribers is recorded there, with transfer of packets to secondary address in each packet information about number of packet, actual information and calendar time are stored, while in input packet calendar time is corrected to time of transfer of output packet, to which this input packet is response, while during transfer of packets to secondary address priority of their transfer is decreased.
EFFECT: possible accumulation of information concerning contents of all talks of subscribers in communication network.
FIELD: computer science.
SUBSTANCE: method includes calculation of mathematical expectation value, autocorrelation function of random process, characterizing time of traffic units receipt, weight coefficients of auto-regression filter are calculated and on basis of output data of said filter time of receipt of following traffic units is predicted.
EFFECT: higher precision.
2 cl, 5 dwg, 1 tbl
FIELD: data transfer networks, in particular Ethernet-based.
SUBSTANCE: device is made in form of multiple individually programmed single-port communication modules for access to common distributor bus 10, while each single-port communication module has: programmed micro-controller 1, made as access control block for transmitting environment Ethernet (MAC), containing processor with short command list (RISC CPU), and logic device 5 for distribution of data frames, including processing in real time scale and transmission to addresses frame destination ports of Ethernet data, received on said one-port communication module, transfer process is serial and is performed in save-and-send mode.
EFFECT: higher data distribution flexibility control.
2 cl, 7 dwg
FIELD: data package transmission in mobile communication lines.
SUBSTANCE: device for controlling data package transmission in mobile communication line, which has base receiving-transmitting system (RTS) provided with buffer for storing data packages to be transmitted to mobile station, has base station controller (BSC) for comparing size of RTS buffer with number of non-transmitted data packages after data packages are received from common use data transmission commutated circuit (CUDTCC). Non-transmitted packages have to be packages which have been transmitted from BSC to RTS but still haven't been transmitted from BSC to RTS. Transmission of data packages is performed if size of buffer exceeds number of non-transmitted data packages.
EFFECT: prevention of overflow of internal buffer of base receiving-transmitting system; prevention of efficiency decrease caused by next cycle of data package transmission.
19 cl, 15 dwg
FIELD: telephone communication systems combined with other electronic systems.
SUBSTANCE: proposed telephone communication system that can be used for voice communications between subscribers of local telephone networks by means of public computer networks has telephone set, local telephone communication line, interface unit, analog-to-digital converter, signal distributor, voice identification device, voice-frequency dialing identification device, pulse dialing signal detector, identified number transmission device, coder, compressor, computer, public computer network, decompressor, decoder, voice recovery device (voice synthesizer), called number information converter, voice and called signal transfer queuing device, and digital-to-analog converter.
EFFECT: enhanced quality of servicing subscriber using public computer network; enlarged functional capabilities of system.
1 cl, 1 dwg
FIELD: radio communications.
SUBSTANCE: radio network controller sends value of power deviation for controlling power of transfer of high-speed dedicated physical control channel of ascending communication line, when user equipment enters service transfer zone, in cell communication system, containing radio network controller, assembly B, connected to said controller and user equipment, being in one of at least two cell nodes, occupied by assembly B. assembly B sends data to user equipment via high-speed jointly used channel of descending communication line and user equipment transfers data, notifying about data receipt state, to assembly B along ascending communication line. Controller sends to user equipment a value of deviation of power to determine transmission power adjustment for ascending communication line, if it is determined, that user equipment is within limits of service transfer zone. Controller sends to assembly B value of power deviation, to allow assembly B to determine threshold value for data determining, noting data receipt state, dependently on power deviation.
EFFECT: high-speed data delivery to user equipment.
5 cl, 31 dwg, 4 tbl
FIELD: communications engineering, possible use for providing radio-communication services.
SUBSTANCE: method for setting up radio communication in mobile-type structured network includes positioning base stations at even distance longitudinal from each other, forming pentagons, two discontiguous angles of which equal 90°, communication zones cover services territory without interruptions, base stations have circular direction diagram and two communication zones radiuses respectively and R.
EFFECT: decreased overlapping level of services zones, decreased power of transmitters and realization of integrity of mobile communications network with increased probability of breakdown of nodes and communication lines.
FIELD: communications engineering; cellular radio communication systems.
SUBSTANCE: proposed cellular radio communication system characterized in intersystem and system-to-system compatibility has aggregate of cells each incorporating base station; each cell has at least two zones of which one is internal zone. Zones are nested in cell radio coverage loop and one into other, zone loops being quasi-similar to cell radio coverage loop which are not intersecting, radio coverage of each zone being provided with radio frequencies specially assigned for its servicing. System transceiver is equipped with horizontally nondirectional antenna or with set of sectoral antennas affording close-to-circular radio coverage of internal zone at one assigned radio frequency; system transceivers operating at other radio frequencies assigned to each sector are provided with sectoral antennas disposed for ensuring sectoral radio coverage of external zone.
EFFECT: enhanced system capacity, reduced frequency resource requirement and system cost.
3 cl, 4 dwg, 1 tbl
FIELD: radio communication systems, possible use for determining informative parameters and characteristics of radio-signals of transmitters of ground-based stationary radio-electronic devices.
SUBSTANCE: onboard the laboratory plane functionally connected are automated control system, device for determining current position, device for registering in input-numbered points of flight trajectory of spectrum graphs Fi of radio signals in frequency band, including frequency channels, onboard computer with database, memorizing device and three processors.
EFFECT: possible determining of parameters under conditions of unintentional interference.
3 dwg, 1 tbl
FIELD: technology and system for transmitting information frames in accordance to discontinuous transmission standard, in particular, technology for transmitting speech signal frames or data at 1/8 speed, using transmission gating and energy consumption adjustment, to concurrently reduce battery use by wireless communication device with alternating speed, increase pass band of reverse communication line and provide reliable frame transmissions at 1/8 speed.
SUBSTANCE: technology includes four frame transmission methods at 1/8 speed, in which to achieve aforementioned results one half of frame is gated, and another half is sent at nominal transmission power. Also, power control system sets, when power control bits of direct communication line are truncated by remote station 50, and in accordance thereto does not perform transmission energy adjustment.
EFFECT: abolished necessity for adjusting transmission energy, improved efficiency of method.
10 cl, 12 dwg
FIELD: the invention refers to the field of radiolocation and may be used in cellular communication systems for augmentation of accuracy of definition of the position of a mobile station.
SUBSTANCE: augmentation of accuracy of definition of the position of a mobile station is achieved due to forming of data base of multibeam mistakes of pseudo-distances in accordance with the terrain( open country, urban area, rural area etc.), an elevation angle of the satellite and the correlation signal-noise for the satellite received signal. The evaluation of the parameters of the multibeam mistakes with taking into consideration the type of the terrain, the elevation angle of the satellite and the correlation signal-noise allows the most effectively to take into account the propagation medium of the satellite's signals and obtain a statistic description of multibeam mistakes. The using of the elevation angle of the satellite and the correlation signal-noise allows to take into account not only the multibeam mistakes but also the noise mistakes at pseudo-distances measuring.
EFFECT: increasing accuracy of definition of the position of a mobile station.
1 cl, 6 dwg
FIELD: technology for switching communication channels for mobile station in wireless local network.
SUBSTANCE: method includes following stages: generation of warning notification message about switching of communication channels to next access point, receipt of response message from current access point, while aforementioned message has information about channel for access point in extended services list, and scanning of channels with implementation of information about channel for selection of new access point.
EFFECT: realization of fast switching of communication channels and quality service at environment access control level for wireless local network.
24 cl, 11 dwg
FIELD: technology for preventing interference caused by broken terminals in cell phone networks based on CDMA technology.
SUBSTANCE: radio network has control device, which compares actual receiving power coming from mobile station to given nominal receiving power and dependently on comparison result initiates following actions. As alternative solution or additionally to it, at least one counter can be provided in control device, capable of detecting commands concerning power control of mobile station, and initiate given actions on basis of aforementioned commands.
EFFECT: possible prevention of interference from terminals with broken power adjustment device, and also possible recognition of terminals with wrong adjustment of high-frequency power.
14 cl, 3 dwg
FIELD: radio communications, can be used for organization of digital communication in automated data exchange systems of air to surface and surface to air types.
SUBSTANCE: central station of system for radio communication with moving objects additionally includes two pulse counters, two pulse generators, delay line, while output of pulse generator is additionally connected to synchronization inputs of counters, outputs of which are connected respectively to shift inputs of shifting register, recording inputs of control block and to reading input of control block, input of third OR circuit through delay line to zero-setting inputs of pulse counters, third output of control block is connected to input of block for storing transfer signals, starting setting of blocks for setting priorities and control, counters of system load is performed by sending flush signal to appropriate inputs.
EFFECT: higher efficiency of system due to increased capacity of device, in particular, concerning transfer of information from moving objects to consumer about all received messages independently from their priority.
FIELD: mobile communications.
SUBSTANCE: method and device have mobile station, made with possible transfer of message with source information to packet data transfer service node, to which station approached after exiting area of effect of another packet data transfer service node. Message informs new packet data transfer service node about new position of mobile station and points out number of inactive realizations of two-point communication protocol, connected to mobile station, and identifier for requesting service for each such realization of two-point communication protocol.
EFFECT: higher efficiency.
4 cl, 5 dwg
FIELD: radio equipment engineering.
SUBSTANCE: system has base station, consisting of narrowband signal transmitter and receiver of complicated phase-manipulated signal, and client station, consisting of transmitter of complicated phase-manipulated signal and receiver of narrowband signal, in which support frequencies mesh generator and commutator are inserted. Transmitter of complicated phase manipulated signal of reverse channel additionally includes block for protection from narrowband interference. Transmitter of narrowband signal has serially connected narrowband signal generator, amplitude modulator and power amplifier.
EFFECT: higher resistance to narrowband interference while satisfying requirements to portability of client station and energetic concealment of its signal.
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