Relay transmission method and apparatus. RU patent 2521475.
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Device and method for header transmission in wireless communication system / 2520951 Invention relates to wireless communication systems. A method of transmitting a SA header includes steps of determining a SA header, constructed in a unit of subblocks, according to a frequency band to be used for transmitting information, determining a sequence for reducing a PAPR of the SA header in consideration of at least one frequency band, a segment identifier (ID), and the number of antennae transmitting the SA header, updating the SA header using the determined sequence, and transmitting the updated SA header to a receiving end. |
 Novel code pattern structure for multi-carrier systems / 2518757Invention relates to a device and a method of transmitting signals in a multi-carrier system. Each frame comprises at least one signal code pattern and one or more data code patterns. The transmission device has a frame generating means. First data signals are located in said at least one signal code pattern in a frame. Data are located in said one or more data code patterns in a frame. Data of said one or more data code patterns include content data and sorting information which enables to sort content data in the right temporal order, a conversion means configured to convert said at least one signal code pattern and said one or more data code patterns from the frequency domain to the dime domain, in order to generate a transmission signal in the time domain, and a transmission means configured to transmit said transmission signal in the time domain. |
 Mobile communication method and receiver / 2518511Invention relates to wireless communication engineering and can be used to process signals in mobile communication receivers. The method of processing signals from a first cell and a second cell in a mobile communication receiver involves obtaining signal synchronisation (u(t)) from the first cell, obtaining signal synchronisation (v(t)) from the second cell, determining synchronisation difference (δ) between signal synchronisations from the first cell and the second cell, controlling synchronisation (k) for a window for processing via discrete Fourier transform (DFT) based on the synchronisation difference (δ), performing signal processing via DFT using synchronisation (k) of the DFT window and determining a combined channel estimate associated with the first cell and the second cell, using the signal processed via DFT. |
 Signal transmission and reception apparatus and signal transmission and reception method / 2518410Invention relates to a method/apparatus for transmitting and receiving a broadcast signal based on the DVB-C2 digital broadcast standard. The technical result is improved data transmission efficiency. Said technical result is achieved due to that the method of transmitting a broadcast signal includes: mapping header data bits to header data symbols and data bits to data symbols; assembling at least one data slice based on the data symbols; time-interleaving the data symbols on the data slice level in a suitable manner for a channel positioning system; assembling a signal frame based on the header data symbols and the data slice, wherein the header data symbols comprise level L1 signalling information for transmitting data slice signals; modulating the assembled signal frame via orthogonal frequency-division multiplexing; and transmitting the modulated signal frame. |
 Method and device for transmitting reference signal / 2515554Invention relates to communication engineering and can be used in wireless communication systems. The method involves: during carrier aggregation, the user equipment transmitting a physical uplink shared channel (PUSCH) at one or more component carriers and transmitting demodulation reference signals (DM RS) for the PUSCH in each section of bandwidth occupied by the PUSCH at each component carrier, wherein a DM RS sequence on a section of bandwidth is an independent sequence or part of an independent sequence and forms an independent sequence with DM RS sequences on multiple sections of bandwidth other than the section of bandwidth, wherein said section of bandwidth is a section of continuous bandwidth occupied by the PUSCH on any component carrier, or is any of the multiple sections of bandwidth occupied by the PUSCH on any component carrier. The corresponding device is also disclosed. The invention solves the problem of transmitting PUSCH DM RS when aggregating multiple component carriers, and the problem of transmitting DM RS when allocating discontinuous PUSCH resources at one component carrier. |
 Method for orthogonal space-time coding in network and relay transmission system / 2515537Present invention relates to a method for network orthogonal space-time coding and a relay transmission system. The method is used in a wireless communication network, having a target node, a source node and a relay node, and includes: step A where the source node broadcasts information in data form to the relay node and the target node, wherein TSR symbol periods are required for step A, and step B, where after receiving information in data form, transmitted by the source node, the relay node performs network orthogonal space-time coding and transmits the coded data to the target node, wherein two symbol periods are required for step B. |
 Inter-carrier bandwidth control for mitigating iq imbalance / 2515282Digital IQ imbalance estimation and compensation in a carrier aggregation environment is facilitated by shaping the frequency response of receiver branches. In particular, in a multi-carrier receiver, the frequency response of signal processing elements in at least one receiver branch is set to not fully attenuate received signals in a frequency band of interest. The frequency band of interest is greater than the carrier bandwidth of the received signal processed by that receiver branch. In some versions of the invention, the received signal is not attenuated, and adjacent interfering signals are partially attenuated. |
 Method and system for mapping pilot signals in multi-stream transmissions / 2510583Base station comprises a downlink transmit path comprising circuit configured to transmit a plurality of reference signals in two or more subframes. Each subframe comprises one or more resource blocks. Each resource block comprises S OFDM symbols. Each of the S OFDM symbols comprises N subcarriers, and each subcarrier of each OFDM symbol comprises a resource element. The base station further comprises a reference signal allocating means configured to allocate a first group of the plurality of reference signals to selected resource elements of a first subframe according to a reference signal pattern. The first group of the plurality of reference signals is for a first group of antenna ports. The reference signal allocating means is also configured to allocate a second group of the plurality of reference signals to selected resource elements of a second subframe according to the same reference signal pattern. The second group of the plurality of reference signals is for a second group of antenna ports different from the first group of antenna ports. |
 Relay transmission method and apparatus / 2509432Invention particularly discloses a relay transmission method which involves: configuring a subframe of a time division duplex (TDD) relay frame for a subframe of relay link (S201), where configuring the subframe of the TDD relay frame for the subframe of relay link involves: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). |
 Relay transmission method and apparatus / 2509431Invention particularly discloses a method which involves: configuring a subframe of a time division duplex (TDD) relay frame for a subframe of relay link (S201). Configuring the subframe of the TDD relay frame for the subframe of relay link involves: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art. Coverage of the system using the TDD relay frame is therefore expanded. |
 Method and device for transferring synchronization channel message in multi-frequency communication system / 2249922In multi-frequency system base station, using a certain set of frequencies for communication and sending data in multiple frequency bands, includes first transfer subsystem for sending synchronization channel message on one bearing frequency from set of preferable frequencies, at least an additional transfer system for transferring remaining data components on other bearing frequency. Mobile station in multi-frequency communication system contains control processor, providing for functioning of subsystems of receiver in accordance to data, contained in message of synchronization channel. |
 System for transmitting quadruple-encoded radio signals / 2258313System has transmitting portion, which contains clock pulse generator 1, first and second D-code generators 21-22, first and second generator of double frequency manipulation 31-32, adder 4, modulator 5, frequencies synthesizer 6, pseudo-random numbers generator 7. said portion is connected through broadcast line 8 to receiving portion, which has demodulator 9, frequencies synthesizer 10, pseudo-random numbers 11, signals selector 12, clock pulses generator 13, block for selecting additional series 14, block for folding additional series 15, solving block 16. new set of significant features provides for possible implementation of distributed receipt with code structure of specific orthogonal quadruple-encoded series without expansion of available frequency resource. |
 Device and method for transmitting and receiving with decreased relation of pike power to average power in mobile communication system with orthogonal multiplexing with frequency separation / 2264041Device for decreasing relation of pike power to average power signal, sent along N(=2r) sub-bearing lines in transmitting device, having encoders for block encoding of w input data, where r - real number > 2, and output of N code symbols, has: serial-parallel converter for transforming data flow to w-(r-2) parallel data flows, where w - length of information word, first coder for receipt of w/2 parallel data flows from w-(r-2) parallel data flows from serial/parallel converter, block encoding of w/2 parallel data flows and output of N/2 first code symbols, generator of input operators for generation of r-2 data flows of input operators, in accordance to w-(r-2) parallel data flows, and second coder for receiving parallel data flows from serial/parallel converter, which were not received at first coder and (r-2) data flows from input operators, block encoding of received data flows and output of N/2 second code symbols, while r-2 data flows of input operators provide for complementarity of N code symbols. |
 System for transmission of quad-encoded radio signals / 2268550System consists of transmitter portion, which has clock pulse generator, Different-code generator, generator of double frequency manipulation signals, modulator, frequencies synthesizer, pseudo-random numbers generator, connected via broadcast pipe to receipt portion, which has demodulator, frequencies synthesizer, pseudo-random numbers generator, signals selector, clock pulse generator, block for selecting additional series, first and second two-channeled synchronized filters, first and second subtracter, interference compensator and resolving block. |
 Device for receiving quadruple-encoded series / 2273961Device has commutator, k-1 delay blocks, branch device, multi-branch delay line, k-1 transformers of pulse series, law-setting block, block for processing optical signal and solving block. |
 Device and method for generation of preamble series in communications system with orthogonal multiplexing and frequency separation of channels / 2278474In accordance to method, first series of preamble is generated, wherein odd data of input series of preamble are transformed to zero data, and even data of aforementioned series are transformed to nonzero data, first series of preamble is transmitted through one of two antennas, second preamble series is generated, wherein even data of input series of preamble are transformed to zero data, and odd data of aforementioned series are transformed to nonzero data, second series of preamble is transmitted through another antenna. |
 Method and device for receiving pseudorandom operating frequency tuning signals / 2280326Device implementing proposed method designed for use in pseudorandom operating frequency tuning radio communication systems and in monitoring systems of the latter has first and second band filers 1 and 3, respectively, first and second multipliers 2 and 16, respectively, demodulator 4, first, second, third, and fourth delay lines 4, 5, 7, and 9, respectively, adjustable frequency synthesizer 6, first, second, third, and fourth spectrum analyzers 10, 11, 12, and 13, respectively, first and second subtracters 14 and 15, respectively, comparator 17, and maximal higher-than-threshold component searching unit 18. |
 Symbol interlacing method / 2292654Method includes selection of operation mode in transmitter from at least one mode, while each operation mode is associated with a number of active carriers for transferring useful data, selection of interlacing symbol in aforementioned selected operation mode, usage of symbol interlacing in transmitter in relation with data element blocks, display of interlaced elements of data on active carriers of aforementioned selected operation mode, receipt of interlaced data elements in receiver, recognition in receiver of symbol interlacing symbol used during data transfer, selection of reversed interlacing symbol in receiver for match with recognized interlacing symbol and reverse interlacing in receiver of received data elements by means of selected reverse interlacing symbol. |
 Digital mutli-frequency transmitter / 2292658In digital multi-frequency transmitter-receiver during receipt signals are simultaneously decimated and roughly converted with frequency decrease in iteration process for narrowing received broad range of frequency down to required channel, and during transmission signals are interpolated iteratively for receiving required frequency of digitization and width of frequency band. |
 Mode and an arrangement for definition of logarithmical likelihood ratio with preliminary coding / 2304352The technical result is reduction of the effect of multiplication of errors achieved because multitude of signal elements is received. At that the signal element contains the totality of modulation symbols out of the totality of coded bits, the first subset of signal elements for which the bit has the first meaning and the second subset of signal elements for which the bit has the second meaning are defined. At that the first and the second subsets are signal elements out of an extended signal group. The probability that the bit equals the first meaning or the second meaning depending from the received signal element is defined, then the symbol of flexible decision of possibility that the bit equals the first meaning or the second meaning is defined. At that the symbols of flexible decision may be represented by the logarithmical likelihood ratios. |
FIELD: radio engineering, communication.
SUBSTANCE: invention relates to a wireless communication system which uses relay. The invention particularly discloses a method which includes: configuring a subframe of a time division duplex (TDD) for a subframe of relay link (S201), where the configuring the subframe of the TDD relay frame for the subframe of the relay link includes: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art and coverage of the system using the TDD relay frame.
EFFECT: high throughput by designing a relay system when performing data transmission in accordance with a TDD relay frame structure.
10 cl, 16 dwg, 9 tbl
The technical field to which the invention relates
The present invention relates to the field of communication technologies and, in particular to a method and apparatus for relay transmission.
The level of technology
With the development of wireless technologies increasing requirements for the connection speed and the quality of the connection. Although wired transfer to some extent meet the requirements for the connection speed and the quality of the connection, wire transfer requires the operator to lay fiber optic cables, or rent a cable resources, which restricts the use of wire transfers. This problem can be solved effectively by the use of the relay for the wireless transit signal. Implementation relay technology can expand the coverage cells, increase the capacity of the cell and to achieve uniform throughput cell. The introduction of the relay can also lead to change of structure frame of the original system.
Figure 1 shows a schematic representation of the structure relay frame for prior art, and the structure of frame relay applicable to full duplex time division of channels (TDD). Refer to figure 1, where the base station (for example, the advanced base node (eNB)) and relay node/repeater (RN)and RN and user equipment (UE) communicate through subtitrov 1 through 4. Subcat 1 is used to relay transmission downlink (DL) from eNB on the repeater, Subcat 2 are used for transmission line access DL from the repeater to the UE, Subcat 3 use the relay transmission uplink connection (UL) from the repeater to eNB, and Subcat 4 are used for transmission line access UL from UE to the repeater.
However, it is clear that prior art has at least the following problem.
In the existing relay system when performing data transfer in accordance with the structure of the frame TDD in prior art relayed transfer may not be realized.
Summary of the invention
The present invention is directed to the method and the device relay transmission, to RN in the system TDD could perform relayed transfer. These goals of the present invention are realized as disclosed in the claims.
To achieve the above goals variant of the implementation of the present invention provides a method relay transmission, and the method includes:
configuring Subhadra relay frame TDD for Subhadra relay lines, and configuring Subhadra relay frame TDD for Subhadra relay line includes: configuring Subhadra DL relay frame TDD for Subhadra DL relay lines and/or configuring Subhadra DL relay frame TDD for Subhadra UL relay lines and/or configuring Subhadra UL relay frame for TDD Subhadra UL relay lines; and
execution relay transmission in accordance with Subhadra relay lines.
Variant of the implementation of the present invention provides a communication device, and the device connection includes:
the configuration module configured for configuring Subhadra relay frame TDD for Subhadra relay lines, and configuring Subhadra relay frame TDD for Subhadra relay line includes: configuring Subhadra DL relay frame TDD for Subhadra DL relay lines, and/or configuring Subhadra DL relay frame TDD for Subhadra UL relay lines and/or configuring Subhadra UL relay frame TDD for Subhadra UL relay lines; and
transmitting module configured to perform a relay transmission in accordance with Subhadra relay lines configured in the configuration module.
Technical solutions according to the options of the implementation of the present invention, when the communications device transmits data, configured Subcat that can be used for transmission over relay lines, data transfer is performed through the use of a relay line corresponds to the limitations inherent in the structure of TDD frame in the prior art, and extend the coverage of the system, using frame relay TDD, thus increasing the throughput.
Brief description of drawings
For clearer illustration of technical solutions according to the options of the implementation of the present invention or prior art, the following accompanying drawings for the description of embodiments or prior art. Obviously, the accompanying drawings for the following instructions, refer only to some variants of the implementation of the present invention, and specialists in this field of technology can, without any creative effort to bring other drawings that are different from those of the accompanying drawings.
Figure 1 - schematic view of the structure of frame relay in the prior art;
figure 2 - block diagram of the way relay transmission under variant of the implementation of the present invention;
figure 3 - schematic view of communication TDD without using patterns frame relay transmission, introduced under variant of the implementation of the present invention;
4 is a schematic view of the structure of the frame, where as a relay line is the full Subcat, under variant of the implementation of the present invention;
5 is a schematic view of the structure of the frame, where as a relay line DL uses the original Subcat DL, and as relay lines UL uses the original Subcat UL under variant of the implementation of the present invention;
6 is a schematic view of the structure of frame system, which includes eNB, RN and UE, under variant of the implementation of the present invention;
Fig.7 - schematic view of the structure of frame according to the variant of the implementation of the present invention;
Fig - schematic view of the other patterns frame under variant of the implementation of the present invention;
Fig.9 - schematic view of another structure frame under variant of the implementation of the present invention;
figure 10 - schematic view the following structure of the frame under variant of the implementation of the present invention;
11 - schematic view of the other patterns frame under variant of the implementation of the present invention;
Fig - schematic view of another structure frame under variant of the implementation of the present invention;
Fig - schematic view of the following structure of the frame under variant of the implementation of the present invention;
Fig - schematic view of the other patterns frame under variant of the implementation of the present invention;
Fig - schematic view of another structure frame under option exercise the present invention; and
Fig - schematic structural performance communication devices under variant of the implementation of the present invention.
The detailed description of options for the implementation of
Further, with reference to the accompanying drawings should be clear and complete description of the technical solutions present invention. It is obvious that the described variants of implementation represent only a part, but not all possible embodiments of the present invention. The specialists in the art, without any creative effort, will be able, on the basis of the listed options for the implementation, display of other options for implementation, and all of these ways of implementation are covered by the scope of legal protection of the present invention.
Figure 2 shows the block diagram of a method relay transmission under variant of the implementation of the present invention, and, as shown in figure 2, the way relay transmission includes the following stages.
At the stage S201 configured Subcat relay frame TDD for Subhadra relay lines.
Configuring Subhadra relay frame TDD for Subhadra relay line includes: configuring Subhadra DL relay frame TDD for Subhadra DL relay lines and/or configuring Subhadra DL relay frame TDD for Subhadra UL relay lines and/or configuring Subhadra UL relay frame TDD for Subhadra UL relay lines.
At the stage S202 is relayed transfer in accordance with Subhadra relay lines.
When performing a relayed transfer in accordance with the configured Subhadra relay lines, if Subhadra UL relay line or subcode DL relay line is used Subcat DL relay frame, for transmission over the access line between RN and UE served RN, or between eNB and UE served eNB, are configurable N characters multiplexing orthogonal frequency division multiplexing (OFDM) Subhadra DL, and they are configured to make reference signal DL or reference signal DL and control signaling. Other characters OFDM Subhadra DL are used for transmission over relay lines and/or security period (GP); that is, the time other than the first N characters of OFDM Subhadra DL, used for transmission over relay lines and/or GP.
Subcat DL includes M characters OFDM, where M and N is a natural number, and N is less M.
Technical solution provided in this embodiment of the present invention can be used in systems such as the Project long term evolution (LTE), advanced Project LTE LTE-A), all versions of LTE (such as Rel-8, Rel-9 and Rel-10), world-compliant system for microwave access (WiMax) and the system ultrawideband wireless (UWB).
For example, in the system of LTE/LTE-A communication device transfers data in accordance with retransmission TDD frame. Each relay frame TDD includes 10 subtitrov, and the length of each frame is 10 MS, and the length of each Subhadra is 1 MS. Relay frame TDD LTE/LTE-a includes Subcat relay lines, Subcat line access to the GP. Subcat relay line is one or more subtitrov. Subcat access line also takes one or more subtitrov. GP is part of the special Subhadra TDD LTE/LTE-A or GP is part of Subhadra relay lines. The relationship between eNB and UE served eNB, is performed in accordance with Subhadra relay lines; and/or in accordance with Subhadra relay line is the connection between eNB and RN; and/or in accordance with Subhadra relay line is the connection between RN and UE served RN. When eNB or RN performs relay transmission, can be used footage TDD with the same respect subtitrov DL and subtitrov UL, either can be used footage same configuration. GP, in particular, includes: the transition from a condition of admission to the state of transmission, and the waiting time. The transition from a condition of admission to the transmission status is a time of transition from a state reception in the communication status of eNB and/or time of transition from a state reception in the communication status of RN. GP is an integer multiple of the time discretization, GP or equal to the time when the number of sampling points is the divider of the number of points Fourier transform, and the number of sampling points equal to the number of points Fourier transform/2 ∧ n, where n is a natural number. Or GP can also get at least among the cyclic prefix OFDM symbol, and/or symbol, OFDM and/or subcode. Or GP is regulated by alarm transmitter and receiver.
For all embodiments of the present invention in all the accompanying drawings D represents Subcat for DL, U represents Subcat for UL and S is a special Subcat in the system LTE/LTE-A TDD. Special Subcat includes a time slot, pilot signal downlink (DwPTS), time slot, pilot signal uplink connection (UpPTS) and GP. Similarly, in all tables D also represents Subcat DL, U represents Subcat UL, and S represents a special Subcat slot DwPTS, slot UpPTS and GP.
In the structure of frame relay TDD, if UE sends a shared channel uplink connection (PUSCH) subcate n, UE takes a physical channel (PHICH) display hybrid automatic request for repetition of transmission (HARQ) in the k-th subcate after Subhadra n, that is, in the (n+k)-m subcate DL, where n and k (k values shown in the configuration lines 0-6) is given in table 1.
Table 1Configuration TDD UL/DL
Subcat n
0 1 2 3 4 5 6 7 8 9 0 4 7 6 4 7 6 1 4 6 4 6 2 6 6 3 6 6 6 4 6 6 5 6 6 4 6 6 4 7For example, in table 1 for the 3rd Subhadra (n=3) in frame 0 configuration line k, respectively, equal to 7; UE sends in the 3rd subcate PUSCH and takes the 0-th subcate (3+7) next frame PHICH. For other configurations, such as in the 1st configuration line, k, respectively, equal to 6; and UE sends in the 3rd subcate PUSCH and takes the 9th subcate (3+6) PHICH.
In the structure of frame relay TDD, if UE takes a shared channel downlink (PDSCH) subcate n, UE sends in subcate n+k confirmation/negative acknowledgement (ACK/NACK), where n and k (k values shown in the configuration lines 0-6) is shown in table 2.
Table 2Configuration
Subcat n
0 1 2 3 4 5 6 7 8 9 0 4 6 - - - 4 6 - - - 1 7 6 - - 4 7 6 - - 4 2 7 6 - 4 8 7 6 - 4 8 3 4 11 - - - 7 6 6 5 5 4 12 11 - - 8 7 7 6 5 4 5 12 11 - 9 8 7 6 5 4 13 6 7 7 - - - 7 7 - - 5For example, in table 2 for 3rd Subhadra (n=3) in the frame of the 2nd configuration line k, respectively, equal to 4; UE accepts 3rd subcate PDSCH and sends in the 7th subcate (3+4) ACK/NACK. For other configurations, such as in the 5th configuration line, k, respectively, equal to 9; and UE accepts 3rd subcate UL PDSCH and sends in the 2nd subcate (3+9) the next frame ACK/NACK.
In the structure of frame relay TDD, if UE takes selection UL/PHICH in subcate n (send data UL/or ACK/NACK PUSCH UL), UE sends PUSCH in subcate n+k. Table 3 shows the relationship of conformity between the allocation UL/PHICH and PUSCH (in the following tables highlight UL may be replaced by PHICH, which is then re not specified).