Synchronisation scheduling method and apparatus. RU patent 2508613.
 Method and apparatus for setting channel power offset and base station / 2508612Versions of the present invention provide a method and an apparatus for setting a channel power offset and a base station. The method involves obtaining a cell load, comparing the obtained cell load with a preset threshold value and setting a channel power offset value of user equipment in the cell according to the comparison result. In versions of the present invention, the channel power offset value can be flexibly set according to the state of the cell load. |
 Radio bearer identification for self backhauling and relaying in advanced lte / 2508611Reduction in overhead is achieved by providing a more efficient mechanism for user terminal and bearer identification as compared to using GTP-u and associated UDP/IP headers. |
 Apparatus and method of dropping logged measurement in wireless communication system / 2508610Invention discloses user equipment in a Radio Resource Control (RRC) connected mode, which receives from a base station a Minimisation of Drive Tests (MDT) configuration and triggers an applicability timer after receiving the MDT configuration. The user equipment in RRC idle mode logs measurements based on the MDT configuration in order to collect logged measurements while the applicability timer is active. When the applicability timer expires, the user equipment drops the MDT configuration and triggers the storage timer. When the storage timer expires, logged measurements are dropped. |
 Random phase multiple access communication interface system and method / 2508597Disclosed is a method for communicating through a multiple access communication interface, which involves receiving a first signal from a first connected unit. The first signal is spectrum-spread using a predetermined pseudo-noise code, and further includes first payload data. A second signal is received from a second connected unit and is spectrum-spread using the predetermined pseudo-noise code and includes second payload data. The first payload data from the first signal and second payload data from the second signal are identified at least in part with a multi-element device for compressing a spectrum spread by the pseudo-noise code. |
 Mine communication system / 2508449System includes a control command detection and shaping device, at least one terminal station adapted for information supply to the operator and for receiving control commands from it, which is connected to the control command detection and shaping device, connected marks of UHF and LF ranges, which are carried by mine workers, and environmental state sensors distributed along an underground working-out and connected via communication channels to the control command detection and shaping device. The system includes connected transponders of UHF and LF ranges, which have the possibility of retransmission of signals of connected marks of UHF and LF ranges, as well as signals of other connection transponders of UHF and LF ranges on the used frequency of the same range, or on the used frequency of the other range, which are distributed along the underground working-out and connected via communication channels to the control command detection and shaping device. |
 Simultaneous transmission of acknowledgement, channel quality indicator and scheduling request / 2507721Simultaneous transmission can maintain single carrier signals for a control channel even when a plurality of information types is scheduled simultaneously. Channel quality indicators, scheduling requests and acknowledgement messages can be jointly coded. Reference symbols in a sub-frame can be modulated to indicate values associated with a scheduling request or an acknowledgement message. Moreover, in situations where channel quality indicators, scheduling requests and or acknowledgement messages are simultaneously scheduled, one or more can be dropped. Further, a single carrier constraint can be relaxed to enable simultaneous transmission of information in the sub-frame at different frequencies. |
 Mobile terminal, radio base station and method of transmitting common channel signal / 2507720Invention particularly discloses a mobile terminal which transmits a common channel signal in an uplink using a given number of basic frequency blocks from a plurality of basic frequency blocks selected from a system bandwidth, wherein each of the basic frequency blocks has a given bandwidth. When receiving, in a downlink, control information for frequency adjustment of the common channel signal between different basic frequency blocks, the mobile terminal maps the common channel signal to subcarriers in different basic frequency blocks such that there is frequency adjustment between basic frequency blocks in accordance with the control information, and wirelessly transmits to the base station the transmitted signal after mapping. |
 User terminal, base station and communication method in mobile communication system / 2507719User terminal for a mobile communication system, which employs a multiple carrier scheme, includes a control signal generating unit which generates a control signal and a transmission unit which transmits the control signal to a base station. The control signal is mapped to multiple frequency bands which are provided on the entire subframe but are discrete in the frequency domain. Each frequency band includes subcarriers used in an orthogonal frequency-division multiplexing (OFDM) scheme. |
 Locating emergency calls via femto access points / 2507718Emergency call is routed to an appropriate emergency centre based on location information for the FAP. The location information for the FAP may include a macro cell identifier (ID) determined based on the FAP location. The macro cell ID may be assigned to the FAP and used to access a database, which stores routing information for emergency centres versus depending on the cell ID. |
 Cell selection method and mobile station / 2507717Method involves changing, at the mobile station, the camped cell from a first general cell to a second specific cell, when using the first general cell as the camped cell, when having detected no general cell that satisfies a first radio communication quality requirement, and when having detected the second specific cell that does not regard the mobile station as the specific mobile station and satisfies a second radio communication quality requirement. |
 Method and device for diverting transmission in multiple access wireless communication system / 2343646Description is given of a method and device for switching wireless terminal channels. For this, several communication channels with different physical characteristics are supported in the cell of the base station. Each wireless terminal controls several channels and evaluates several channels at the same time, such that, there can be fast switching between channels. Information on the quality of the channel is sent from each wireless terminal to the base station. The wireless terminal or base station selects the channel, based on the evaluated quality of the channel. By supporting several channels and through periodical changes in channels in different implementation alternatives, the time taken before the wireless terminal finds good or suitable channel conditions is minimised, even if the wireless terminal changes position. Several antennae are used at the base station for simultaneous support of several channels, for example, through control of the directional pattern of the antennae. |
 Method of generating repeating audio signals for call return and device to this end / 2343647During different set conditions providing source of sound for company service information as substitutive audio signal for call return, receiver can determine whether source of sound for service information for subscriber or set time interval is provided for. Present invention provides for a method and device for obtaining substitutive repeating audio signal for call return based on choice or successively in accordance with a preset condition. |
 Access channel with limited reception time / 2343648Method consists of the following stages: reception of request for channel access from user terminal. Reception of the user terminal can be one of several active user terminals. The transmission cycle duration is determined as a result of reception of a request for channel access. The arrival time of data to the cycle is determined for the user terminal. The arrival time of data to the user terminal is set, so as to designate the channel for the user terminal, starting from the time of arrival of data. |
 System and method of band subchannel control with adaptive modulation and coding (amc) in communication system of multiple access with orthogonal-frequency division / 2344548Method for assignment of band channel with adaptive modulation and coding (AMC) to subscriber stations (SS) is realised in wireless communication system, which separates full range of frequencies into multiple subcarrier bands, every of which represents set from previously specified quantity of subranges, every of which represents set of previously specified quantity of adjacent subcarriers. Method comprises the following stages: necessity in use of band channel with AMC is detected; quality of reception is measured in frequency bands; list of frequency bands with high quality of reception is formed; request is sent for assignment of band channel with AMC as well as foresaid list to base station (BS); response is received to mentioned request from BS; in compliance with response, changeover is done in SS in condition of use of band channel with AMC. |
 Method and device of communication for transfer and reception of messages about services to service center or back / 2344568Service center (SZ) for transmission of information content should not know or define number of person who initiates loading, and sole connection (TKV) of communication from communication device (TKG) to service center (SZ) does not require making another communication contact, at that information content is requested in the first communication session (SI1) with the first notice (SN1) about service from service center (SZ), and is delivered from service center (SZ) in the second communication session (SI2) with at least one notice (SN2) about service. |
 System of home register of location for servicing of user of several types of networks / 2344569System comprises subsystem of all-channel signaling processing, data base subsystem, services processing subsystem and operational maintenance subsystem, at that all subsystems are connected to communication network and accordingly realise information exchange; at that all-channel signaling processing subsystem performs function of OKC-7 processing; data base subsystem is used for storage of user data; services processing subsystem comprises one or more modules for processing of home location register services; operational maintenance subsystem comprises operational maintenance server, services acceptance terminal and close-range terminal of operational maintenance. |
 Grouping of pilot-signals and control of sets in communication systems with multiple carriers / 2344570In one version of realisation access network may assign group identifier (group ID) to every of pilot-signals associated with sector, for instance, on the basis of pilot-signals coverage areas, and transmit pilot-signals with appropriate group ID. PN shift may be used as group ID. Access terminal may group accepted pilot-signals in one or more pilot-signals group according to their group ID, and select representative pilot-signals from every group of pilot-signals for transmission of message about pilot-signal level. Access terminal may also use grouping of pilot-signals for efficient control of sets. |
 Method and device for switching between common and individual channels for provisioning of broadcasting content services transmission in wireless telephone network / 2344571Wireless communication network comprises different base stations and subscriber stations. Every base station provides services of broadcasting content transfer to subscriber stations via communication channels of one of the following types: 1) common channel used by multiple subscriber stations, 2) individual channels, every of which is separated for use by separate subscriber station. In response to one or several preset changes of condition, i.e. change of number of subscriber stations that request the program, change of transmission power level used by base station, or in case of other change of network condition, communication channel type used for provisioning of broadcasting content to one or several subscriber stations is switched over. |
 Power control in external circuit for wireless communication systems / 2344572One version of realisation comprises base station, which controls channel of speed indicator, decodes speed indicator channel with application of likelihood maximum decoder and determines availability of packet in speed indicator channel by comparison of probability to threshold, and analyses frame validity in packet-oriented channel on the basis of availability and content of packets accepted in speed indicator channel. |
 Method and device for provisioning of multimedia service of broadcasting/multicasting in system of mobile communication / 2344573Method and device are provided for provisioning of one or more communication services of point-point set type, such as multimedia service of broadcasting/multicasting (MBMS), to one or more mobile terminals, or subscriber devices (AA). When one or more mobile terminals are moved to new zone of mobile communication system controlled by other network component, after connection to service, information is transmitted between network elements by method. |
FIELD: radio engineering, communication.
SUBSTANCE: synchronisation scheduling method involves a lower layer network element obtaining multiple synchronisation sequences of a defined service from an upper layer network element with which the lower layer network element is associated. The upper layer network element processes data packets of the defined service according to a synchronisation sequence length, and transmits the multiple synchronisation sequences, which are a set of data packets with the same time stamp information, to the lower layer network element. The lower layer network element determines a transmission scheduling time interval according to the synchronisation sequence length and time division multiplexing period of the defined service. The transmission scheduling time interval is a common multiple of the time division multiplexing period and the synchronisation sequence length, and the time division multiplexing period of the defined service is 1/n of the period of a wireless interface connection frame number, where n is an integer; and as for the synchronisation sequence whose time stamp is set in the current transmission scheduling time interval, the lower layer network element transmits it in an available transmission period of a designated transmission scheduling time interval.
EFFECT: avoiding service data loss.
12 cl, 8 dwg
THE TECHNICAL FIELD
The present invention relates to the field of communication, in particular to a method of and device for synchronization planning.
THE LEVEL OF TECHNOLOGY
With the development of the Internet there appeared a huge number of multimedia services and the needs of the people of mobile communication are not only limited to telephone communication and messaging. Currently, multimedia services application services are introduced, the peculiarity of which is that multiple users can simultaneously receive the same data, such as video on demand, video broadcasting, video conferencing, interactive education, interactive games etc.
MBMS technology (multicast broadcast media) has identified the possibility of the effective use of the resources of the mobile network. MBMS is a service connection between the constant station and a number of other stations when one data source transmits data to multiple users, and through such a service it is possible to combine the use of network resources, including basic network of mobile communication and access networks, in particular, the shares of the radio interface. In addition, the service MBMS within the 3GPP can carry out not only multicast and broadcast text messages with a low rate, but also multicast and broadcast high-speed multimedia services.
Because of MBMS is a service provided for the entire network, the same service MBMS can be implemented in different nodes of the network elements of the lower level. Figure 1 shows the block diagram of a known from the prior art method of synchronous processing services MBMS many network elements, which includes the following types of processing.
Step S102, network top-level element passes the package(s) data services MBMS to the appropriate network elements of a lower level and these package(s) data includes data about the service and carry the information of the timestamp, information about the index number of the data package, information about the accumulated length of the data services etc. Network, top-level element marks one or many data packets are one and the same information of the timestamp, and these data packages are marked with the same timestamp, form the stack (burst) data, which is often called the synchronization sequence. In the special case of network top-level element marks each packet data services as a packet data or sequence synchronization, and in this case every packet of data or sequence synchronization includes only one packet data services.
Step S104, network elements the lower level must perform joint processing at the level of the wireless link control Protocol (Radio Link Control, RLC) for data services, portable package(s) data services in the same bundle of data, the combined processing at the Protocol level RLC not perform for packet data services with different sequences of synchronization. In addition, when such processing of the packet(s) of the data services of one sequence synchronization Protocol-level RLC numbers RLC Protocol-level RLC set in its original state starting with the first data packet each sequence synchronization, ordinal RLC Protocol-level RLC. That is, starting the first of a batch of data PDU (Protocol Data Unit) at the Protocol level RLC ordinal RLC appointed on the basis of specifically agreed or configurable fixed value. The advantage of this processing is: if multiple packets continuous data are lost during transmission from the network element of the upper level to the lower network layer, the network element to the lower level cannot determine, according to the prior art, the length of the unit RLC PDU employed lost packets of data when processing at the Protocol level RLC; this leads to the fact that the network element, lost packages, will be unable to keep consistency with the other network element at subsequent processing at the Protocol level RLC, however, the mentioned above problem can be eliminated by drop sequence number RLC with the beginning of each sequence synchronization and thus ensures consistency of the sequence numbers of the RLC network elements at the beginning of each sequence synchronization.
Step S106 for data services that carry packets of data services, marked timestamp in the same sequence synchronization, network elements of the lower level is passed on wireless interfaces data packets services from the point of time of transmission of the corresponding timestamp. As specified information is transmitted to the network top-level items to the appropriate lower-level network elements, which are fully compatible with each other, the appropriate lower-level network elements can perform fully consistent processing, thereby implementing synchronous transfer services MBMS among hundreds of appropriate network elements of the lower level.
At present, the information of the timestamp of each data packet can be set in one of two ways.
Method 1: Network top-level element puts a temporary label depending on the time of reception of the packet data services, and data packets services to be taken in the time interval with a limited duration, mark one and the same timestamp, the mentioned time interval with limited duration is called the length of the sequence synchronization or the planning period.
Method 2: Network top-level element virtually simulates processing at the Protocol level RLC network elements of a lower level and marks the data packets services, which carry out joint processing of RLC, the same timestamp, in accordance with the result of a virtualized processing RLC.
The two ways to configure, since the information of the timestamp depends on the time of receipt of the packet data services on the network top-level element is not possible to determine intervals timestamp of the packet data services. It is assumed that the flow of data services, network received the top-level element is the data flow formed according to the quality of service (QoS)that is in any time period bandwidth stream of data about the service will not exceed the maximum bandwidth defined QoS, and it is assumed that the resources of the channel of the wireless interface in the mentioned period of time consistent with the QoS parameters.
Service MBMS can be transmitted via the wireless interface mode WRC (TDM - time division of channels, the configuration of WRC (TDM) includes the following parameters: the period of the WRC, the offset of the WRC and the length repeat WRC. Available resources WRC one services can be presented as follows: (number of system frame CFN divided by the number of a length of 10 MS, included in the TRS (transmission time interval)) modular operation (period WRC)=displacement WRC+i, i=0, 1, ..., (the period of WRC - 1). More specifically, MBMS service passed to the reserved period WRC, starting with the interval TRS offset in the selected period WRC, where the maximum period repeat of the WRC is not more than 9 and the available length of IWP for services MBMS is 40 or 80 MS. The service can be transmitted over the wireless interface of the only available transmission period, configurable in the period of the WRC.
When the data transmit mode WRC, due to the fact that the transfer of one MBMS services for wireless interface is not continuous, and occurs intermittently and with repetitions of the WRC, according to existing methods of planning, the timestamp is unreliable and, thus, the information of the timestamp may not match start time transmission services MBMS for wireless interface. That is, timestamp and time of the transmission on the wireless interface (available transmission time) may not correspond with each other, for example, as shown in figure 2, the length of the sequence synchronization does not coincide with the period of the WRC.
Figure 3 is presented the schematic view of allocation of resources due to differences in the length of the sequence synchronization. As shown in figure 3, in configuration mode, the WRC, because of the disorder resource wireless channels, for the same period in different situations, the available wireless resources operate differently and in such a situation scheduling algorithms of-the-art led to erroneous result. Scheduling algorithms, known from the prior art, assumed that the data packets can be transmitted over a given period, could not be transmitted over the wireless interface of an overflow that could result in loss of data services and a serious worsening of the quality of the service.
BRIEF SUMMARY OF THE INVENTION
The present invention takes into account the issue of prior art when planning methods caused loss of data services and a serious worsening of the quality of the service. Thus, the present invention is mainly aimed at improving the synchronization planning to solve this problem.
To achieve the mentioned goal, according to one aspect of the present invention provides a method of synchronization planning.
Way synchronization planning according to the present invention, includes: receiving of the network(mi) element(s) of the lower level of sequences synchronization of a particular service from the network's top-level element, which the network element(s) of the lower-level networking top-level element handles packets of a particular data services, depending on the length of the sequence synchronization and sends it is a set of sequences synchronization network(s) ) lower level, where the sequence synchronization are a set of data packets with the same information timestamp; identification network(mi) element(s) of lower level interval of time transmission planning depending on the length of the sequence synchronization and period of time-division multiplexing certain services; the interval of time transmission planning is common multiple of the period of time-division multiplexing and the length of the sequence synchronization, and the period of time-division multiplexing particular service is 1/n cycle connection of frame wirelessly within a period of actions of the communication session, n is an integer; and as for the sequence synchronization, time stamp, which is located in the current interval of time planning the transfer, the transfer of its network(mi) element(s) of the lower level of the available transfer at the appointed time interval transmission planning.
According to another aspect of the present invention of a device to process synchronization, which is placed by the network element lower level.
Device for synchronization planning according to the present invention, includes: a means of obtaining configured on the getting multiple sequences synchronization of a particular service from the network's top-level element to which they relate, the network top-level element handles packets of a particular data services in accordance with the length of the sequence synchronization and passes a set of sequences synchronization network element lower level, where each sequence synchronization is a set of data packets with the same information timestamp; means of determining configured on the determination of the time interval transmission planning in accordance with the length of the sequence synchronization and period of time-division multiplexing certain services; the interval of time transmission planning is common multiple of the period of time-division multiplexing and the length of the sequence synchronization, and the period of time-division multiplexing particular service is 1/n cycle connection of frame wirelessly during the period of the communication session, n is an integer; and transmission devices configured on the transmission sequence synchronization, time stamp, which is located in the current interval of time transmission planning, in the available transmission over a period of time-division multiplexing a certain interval of time transmission planning, where a certain time interval transmission planning includes one of the current time intervals transmission planning and the next time interval transmission planning.
By way of, stipulated by the present invention, the data about the service process according to the planned time interval transmission, determined according to the period of time division of channels and the length of the sequence synchronization services, compared with the prior art, the present invention allows to avoid the situation of a nonuniform distribution of resources, which is due to the inconsistent allocation of resources of the wireless interface configuration WRC and, thus, avoiding overflow sequences synchronization services and loss of data services.
BRIEF DESCRIPTION OF DRAWINGS
Drawings are to gain a deeper understanding of the present invention, and are part of the description. They are intended to explain the invention in its different variants of implementation, but are not limited to the present invention. On the drawings:
Figure 1 is a block diagram of the method of synchronous processing services MBMS many network elements, known from the prior art;
Figure 2 is a schematic representation of the sample, known from the prior art, when the length of the sequence synchronization is not consistent with the period of the WRC;
Figure 3 is a schematic example allocation of resources due to the different length of sequences synchronization, known from the prior art;
Figure 4 is a block diagram of the method of synchronization planning in accordance with the variation of the method of the present invention;
Figure 5 represents the scheme of the logical connection of the network element of the upper level network elements of a lower level according to the present invention;
The main idea of this invention consists in the following: the current configuration method WRC, because the resources of the wireless link are not available wireless resources are different in the same period of time in different points in time, in such a situation, scheduling algorithms, known from the prior art, lead to erroneous result, in virtue of this, the present invention provides a method for synchronization planning to solve this problem by setting the time interval transmission planning, which is common multiple of period of time-division multiplexing and the length of the sequence synchronization, and subsequent transfer of the received sequence synchronization within a certain time interval transmission planning.
What follows is a detailed description of the invention in conjunction with the accompanying drawings. We should explain that embodiments of the present invention lacks implementation options may be combined with the absence of conflict.
Variant of implementation of the method
In accordance with the embodiment of the present invention, provided way synchronization planning.
It is necessary to explain that for convenience in describing the technical solution of the method of the present invention is shown and described below using the steps that can be executed in a computer system, such as a group of commands that the computer performs. Although the logical order of the steps was shown in the relevant drawings, in some situations steps shown or described here can be performed in a manner different from the one provided here.
Figure 4 is a block diagram of the method of synchronization planning in accordance with the embodiment of the present invention, as shown in Figure 4, the method includes these steps (steps S402 on S406):
Step S402, receiving network(mi) element(s) of the lower level of sequences synchronization of a particular service from the network's top-level element, to which is this a network element(s) of the lower-level networking top-level element handles packets of a particular data services, depending on the length of the sequence synchronization and sends it is a set of sequences synchronization network(s) ) lower level, where the sequence synchronization are a set of data packets with the same information timestamp;
Step S404, definition network(mi) element(s) of lower level interval of time transmission planning depending on the length of the sequence synchronization and the period of temporary channel separation certain services; the interval of time transmission planning is common multiple of the period of time-division multiplexing and the length of the sequence synchronization, and the period of time-division multiplexing particular service is 1/n cycle connection of frame wirelessly during the period of the communication session, n is an integer; and
Step S406 as for the sequence synchronization, time stamp, which is located in the current interval of time planning of the transmission network(s) element(s) of lower level submits it to the available transfer at the appointed time interval transmission planning.
In step S402, after the network(s) element(s) of lower level gets/get the set of sequences of synchronization of a particular service, the network(s) element(s) of lower level can/can perform joint processing at the level of the RCL data packet sequence(s) synchronization, the time stamps which include the length of the sequence synchronization of the current time interval transmission planning.
In step S404, network(s) ) the lower level of pre-must/should get the length of the sequence synchronization from the network's top-level element. In connection with the above, the length of the sequence synchronization can be obtained in two ways: first, the network(s) ) of lower level gets/get the length of the sequence synchronization in accordance with the system configuration; and secondly, network top-level element notifies the network(s) ) of lower level on the length of the sequence synchronization.
In addition, if the first data packet from the first sequence synchronization received within each interval of time planning of the transmission network(s) ) of lower level must install the ordinal number of the RCL certain services to its original state.
To avoid what the length of the period of WRC is not 1/n (n is an integer) loop join non systemic frame CFN, which further leads to non-uniform distribution of wireless resources in the planning period transfer method network(s) ) of lower level must set the period of WRC services in time 1/n (n is an integer) loop join CFN. As a value period of time-division multiplexing (period WRC) current services MBMS expose one of the values from 2 to 9, i.e. the length from 2 to 9 of time intervals transfer (UPS) and the value of the frame number of the connection on the wireless interface (CFN) is 256 10 MS, assume that the length of one of the TRS is 4 in 10 MS, then the period CFN includes 64 TRS, given that the range of values of the period WRC, if the number of TRS includes one period WRC, not corresponding to 1/n (n is an integer) from 1024, then the number of periods WRC contained in the cycle, CFN, not a whole number, in other words, a situation may arise when there are only a part of a single period in WRC the tail of one period CFN that leads to the fact that resources that could be used for specific services during this period, do not correspond to the same resources in other periods. The embodiment of the present invention, a network element of the upper level, implies that the allocation of resources for the wireless interface, dedicated network(mi) element(s) of the lower level is uneven, while the hypothesis does not hold water if the WRC is 1/n (n is an integer) loop join CFN.
With technical solutions presented in the embodiment of the present invention, the data about the service process depending on the time interval transmission planning, defined in accordance with the period of time division of channels and the length of the sequence synchronization of this service. Compared with the prior art, the present invention allows to avoid the situation with inhomogeneous distribution of resources, which occurs due to inconsistent allocation of resources of the wireless interface configuration, WRC, and thus avoid overflow in the number of sequences synchronization, and data loss services.
Before further description of options for the implementation of the present invention will be described network top-level element and network element to the lower level.
Network element to the top-level configure the planning of the received packet data services MBMS, in particular, network top-level element should mark every packet data services information timestamp; data packets marked with the same information of the timestamp, call sequence synchronization, and then these data packages marked information of the timestamp, transmit one or more network elements of the lower level, related to the network element's top level.
Network element lower level set to ' accept packets of data services, transmitted from the network's top-level element, and the timing of the beginning of the transmission of one sequence synchronization in accordance with the information of the timestamp of each packet data services. During processing at the Protocol level RLC network element lower level performs joint processing RLC for data packets of the same sequence synchronization and forwards data packets services for processing at the Protocol level of the user-level network wirelessly. To improve the recovery of synchronization in a situation of packet loss in a wireless interface network element lower level restores the RLC to its original position at the beginning of each sequence synchronization and beginning to re-direct sequence Protocol-level RLC.
Figure 5 represents the scheme of the logical connection of the network element of the upper level network elements of a lower level and, as shown in figure 5, one network top-level element is associated with a variety of network elements of a lower level and interacts with these elements with the help of signals. It is necessary to clarify that the network top-level element and one or more network elements of the lower level relating to such network element's top-level, may be identical network elements or functionally different network elements. To perform the functions of synchronization services logical to share them on the network top-level element and network elements of a lower level, i.e. of multiple identical or functionally different network elements distinguish one network top-level element and multiple network elements of the lower level in accordance with the functional purpose; such network elements interact with each other and implement the service of MBMS the manner in which the transfer occurs between multiple network elements of a lower level.
Proceeding from the above, the network element of the top level and lower-level network elements can be included, inter alia, in the following combinations of network elements.
Based on the above, the present invention provides a method of synchronization, implementation of synchronous transfer through the many elements of a multichannel network services for which the resources of the wireless interface configure mode WRC (TDM).
EXAMPLESNetwork element sponsor may allocate packages the data and information set timestamp each packet of data as follows: network top-level element puts a temporary label depending on the time when he receives the packet data services, and marks the data packets services received during the time interval of a certain length, the same timestamp, and interval of time of a certain length is called the length of the sequence synchronization or the planning period.
For sequences of synchronization of a particular service transmitted from the network element top-level network(s) ) of lower level can/can calculate the time interval transmission planning in accordance with the length of the period WRC configured on a particular service, and information on the length of the sequence synchronization network top-level element, and the duration of the time interval transmission planning is a multiple of the length of the WRC and the length of the sequence synchronization network top-level element, producing network(mi) element(s) of lower level planning information from the network's top-level element include the following:
Method 1: using configuration management, network(s) element(s) of lower level gets/get the length of the sequence synchronization configured network top-level element for certain services; and
Method 2: through the transfer of the alarm message on the network(s) ) low-level network top-level element notifies the network(s) ) of lower level on the length of the sequence synchronization of a particular service.
During the practical implementation of one or many sequences synchronization, time stamp, which is installed in the same interval of time planning of the transmission network(s) element(s) of lower level, from the moment of the beginning of the next or current time interval transmission planning, start/start consistently transmit data packets one or many sequences synchronization in the available wireless resources related to the next or to the current time interval transmission planning.
At the beginning of the transmission of the first data packet to the specified services for the wireless resources corresponding to one time interval transmission planning, firstly, the network(s) ) of lower level resets/dump the original position of the next sequence number RLC specified services, and then performs the combined processing at the level of RLC data packets one or more sequences synchronization transmitted in the same time interval transmission planning.
At the same time, the period of the WRC this service is set to 1/n (n is an integer) loop join in the period CFN, which ensures that the number of periods WRC allocated for this service is an integer.
For example, 6, according to the present invention is a schematic picture of the ratio between the period of the WRC, the sequence length of synchronization and the time interval transmission planning and, as shown in Fig.6, the period WRC specified services is 2 time interval transmission (TRS), the length of the sequence synchronization of this service is 3 IWP and in accordance with the period of the WRC and the length of the sequence synchronization interval of time planning the transfer of the said service, an estimate can be a multiple of 2 and 3. It is preferable that was selected for a minimum common multiple, equal to 6, then the interval of time planning the transfer of specified services will be 6 TRS. During the procedure of conversion, data packets services received during the current 6 TRS may be transferred within the available period transfer period WRC current six TRS, or can also be transferred within the allowed period of transmission during the period WRC next six TRS.
For example, according to the present invention, figure 7 presented schematic representation of the correlation between the period of the WRC, the sequence length of synchronization and the time interval transmission planning and, as shown in Fig.7, period WRC specified services is 4 TRS, the length of the sequence specified synchronization services is 2 TRS, and in accordance with the period of the WRC and the length of the sequence synchronization interval of time planning the transfer of the said service, an estimate can be a multiple of 4 and 2. It is preferable that was selected for a minimum common multiple of 8, then the interval of time planning the transfer of specified services amounted to 8 TRS. During the procedure of conversion, data packets services received during the current 8 TRS may be transferred within the allowed period of transmission during the period WRC current 8 TRS, or can also be transferred within the allowed period of transmission during the period WRC following 8 TRS.
Under variant of the implementation of the present invention, shows the device to schedule synchronization with the purpose of implementation of this method, the option provided for its implementation.
Fig.8 is a block diagram of the structure of the device for synchronization planning in accordance with the embodiment of the present invention. Unit is located from the side of the network element lower level. As shown in Fig.8, the device contains a means of obtaining 10, means of determining 20 and means of transmission of 30, which will later be described in detail.
Means of obtaining 10 are designed to obtain the set of all sequences of synchronization of a particular service from the network's top-level element to which they relate, the network top-level element handles packets of a particular data services in accordance with the length of the sequence synchronization and passes it a set of sequences synchronization network element lower level, where each sequence synchronization is a set of data packets with the same information timestamp; means of determining 20 are connected with the means of administration of a 10 and are intended to determine the time interval transmission planning depending on the length of the sequence synchronization and period of time-division multiplexing certain services; the interval of time transmission planning is common multiple of the period of time-division multiplexing and the length of the sequence synchronization, and the period of time-division multiplexing particular service is 1/n cycle connection of frame wirelessly over a certain period, n is an integer, and means of transmission of 30 connected with the means of administration of a 10 and a means of identifying 20, and intended for transmission sequence synchronization, time stamp, which is installed in the current interval of time transmission planning in the available transmission over a period of time-division multiplexing, assigned according to the period of time transmission planning, and the assigned time interval transmission planning includes one of the following: current interval of time planning of the transmission or the next time interval transmission planning.
The device provided by the present invention, the data about the service of process in accordance with the time interval transmission planning, defined according to the period of time division of channels and the length of the sequence specified synchronization services. Compared with the prior art, the present invention allows to avoid the situation with inhomogeneous distribution of resources, which happens due to inconsistent allocation of resources of the wireless interface configuration, WRC, and, thus, avoids overflow sequences specified synchronization services and loss of data services.
As mentioned above, due to the way and/or device synchronization planning, stipulated by the present invention, the data about the service process depending on the time interval transmission planning, determined in accordance with the period of time-division multiplexing and long duration of the sequence specified synchronization services, compared with the prior art, the invention helps to avoid the situation with inhomogeneous distribution of resources, which arises due to the inconsistent allocation of resources of the wireless interface configuration, WRC, and, thus, avoids overflow sequences specified synchronization services, and also allows to avoid breaking of data transmitted as a sequence synchronization distributed network element of the upper level, incompatible with resources during transmission over the wireless interface, the corresponding sequences of synchronization.
Obviously, a specialist in this field should understand that a variety of tools and steps described above can be implemented using standard computing device and can be integrated into a single computing device or distributed within the network that includes a lot of computing devices, and, in the alternative, tools and steps, described above, may be exercised by software code, executable computing devices, and can be saved in the device memory so that executed the computing devices, or that the various tools and steps described above can be formed in the separate integrated modules, or many tools or steps can be formed in a single integrated module for implementation. Therefore, this invention is not limited to any specific combination of hardware or software.
1. Way synchronization planning, described by that includes: getting the network(mi) element(s) of the lower level of sequences synchronization of a particular service from the network's top-level element, which the network element(s) of the lower-level networking top-level element handles packets of a particular data services, depending on the length of the sequence synchronization and sends it is a set of sequences synchronization network(s) of the item(s) lower level, where the sequence synchronization are a set of data packets with the same information timestamp; identification network(mi) element(s) of lower level interval of time transmission planning depending on the length of the sequence synchronization and period of time-division multiplexing certain services; the interval of time transmission planning is common multiple of the period of time-division multiplexing and the length of the sequence synchronization, and the period of time-division multiplexing particular service is 1/n cycle connection of frame wirelessly within a period of communication session, n is an integer; and as to the sequence synchronization, for which the information of the timestamp is in the current interval of time planning, network(s) element(s) of the lower level pass this sequence is available during the transfer of the assigned time interval transmission planning.
2. The method according to claim 1, characterized in that way further includes: prior receipt of the network(mi) element(s) of the lower level of the length of the sequence synchronization network top-level element.
3. The method of claim 2, characterized in that at the stage of obtaining the prior network(mi) element(s) of the lower level of the length of the sequence synchronization network the top-level item additionally includes: getting the network(mi) element(s) of the lower level of the length of the sequence synchronization depending on the system configuration; and notification of network element of the upper level of network(s) are member(s) of lower level on the length of the sequence synchronization.
4. The method according to claim 1, characterized in that it additionally includes: definition of information of the timestamp corresponding to the first sequence synchronization received the network(s) element(s) of lower level, as the time of the first interval of time transmission planning.
5. The method according to claim 1-4, wherein the certain interval of time transmission planning includes one of the current time intervals transmission planning and subsequent interval of time transmission planning.
6. The method according to claim 1-4, wherein after the network(s) element(s) of lower level will receive(at) the set of all sequences of synchronization of a particular service, a way of additionally includes: sequence(TEI) synchronization, time stamp which is put in a number sequence synchronization of the current interval of time planning of the transmission network(s) element(s) of lower level shall perform(s) the joint processing RLC a set of packages for the data in the sequence(and) synchronization.
7. The method according to claim 1-4, characterized in that it additionally includes: admission of the first packet data first sequence synchronization in each interval of time planning of the transmission network(s) element(s) of lower level sets(s) serial number of the sequence RLC certain services to its original state.
8. The method according to claim 1-4, wherein the available transfer period is the time period of the resources of the wireless interface, which involve for the transmission of data packets.
9. The method according to claim 1-4, wherein the data packets in sequence(act) synchronization also pass the length of the accumulated data and the sequence number of the data packets.
10. The method according to claim 1-4, characterized by the fact that at the stage when the network element top-level processes the data packets certain services depending on the length of the sequence synchronization, additionally includes: marking network element top-level data packets of a particular service by the information of the timestamp, depending on the length of the sequence synchronization.
11. The method according to claim 1-4, wherein the length of the sequence synchronization is planning period.
12. The device is to schedule synchronization is located at the network element lower level is different because it contains: a means of obtaining configured for receiving the set of all sequences of synchronization of a particular service from the network's top-level element to which they relate, the network top-level element handles packets of a particular data services in accordance with the length of the sequence synchronization and passes it a set of sequences synchronization network element lower level, where each sequence synchronization is a set of data packets with the same information timestamp; means of determining configured on the determination of the time interval transmission planning in accordance with the length of the sequence synchronization and period of time-division multiplexing certain services; the interval of time transmission planning is common multiple of the period of time-division multiplexing and the length of the sequence synchronization, and the period of time-division multiplexing particular service is 1/n loop join the frame number on the wireless interface during the period of the communication session, n is an integer; and transmission devices configured on the transmission sequence synchronization, time stamp, which is located in the current interval of time transmission planning, in the available transmission over a period of time-division multiplexing a certain interval of time transmission planning, where a certain time interval transmission planning includes one of the current time intervals transmission planning and the next time interval transmission planning.