CN112565157A - Data transmission method and device for relay area - Google Patents
Data transmission method and device for relay area Download PDFInfo
- Publication number
- CN112565157A CN112565157A CN201910911050.8A CN201910911050A CN112565157A CN 112565157 A CN112565157 A CN 112565157A CN 201910911050 A CN201910911050 A CN 201910911050A CN 112565157 A CN112565157 A CN 112565157A
- Authority
- CN
- China
- Prior art keywords
- subframe
- data transmission
- frame structure
- symbols
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/06—Notations for structuring of protocol data, e.g. abstract syntax notation one [ASN.1]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
Abstract
The embodiment of the invention provides a data transmission method and a device for a relay area, wherein the method comprises the following steps: determining a preset wireless frame structure corresponding to a current sub-band; performing data transmission on the current sub-band based on the preset wireless frame structure; the preset radio frame structure comprises 5 subframes, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, and the first symbol of the fourth subframe is set as a relay guard interval. According to the data transmission method and device for the relay area, provided by the embodiment of the invention, a new frame structure is adopted for data transmission in the relay area, so that the data transmission method and device can be better suitable for resource use of a frequency point of 25kHz in a 230MHz frequency band.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method and apparatus for a relay area.
Background
With the rapid development of wireless communication technology, more and more industry applications also use wireless communication systems for service transmission, and the power industry also uses wireless communication technology for power service transmission. The LTE230 wireless private network system has been applied to the power industry on a certain scale, and in the application process, the problems of network deep coverage and a small part of blind spots occur, and a relay mode needs to be adopted as a supplement of the LTE230 wireless private network system.
There are currently three LTE-a relay types: 1) relay with different frequency resources used by RN (Relay Node) -UE interface and Un interface; 2) relaying with inband and requiring resource partitioning: the RN-UE interface and the Un interface use the same resource, and avoid the receiving and transmitting interference of the relay node by a TDM (Time Division Multiplex) mode, and the RN of the type needs the network side to perform subframe configuration on the Un interface; 3) the relay with the inband does not need resource division, wherein the RN-UE interface and the Un interface use the same resource, but the transmitting and receiving interference of the relay node is reduced by improving the performance of a relay node duplexer or the isolation of an RN transmitting and receiving antenna, and the RN is high in cost.
For an inbound relay requiring resource partitioning, in order to avoid mutual interference between an Access link (a radio link between RN and UE) and a Backhaul link (a radio link between eNB and RN), the transmission of eNB-RN and RN-UE adopts a TDM manner, that is, RN adopts a half-duplex operating mode. In TDD mode, eNB-to-RN transmission occurs in downlink subframes and RN-to-eNB transmission occurs in uplink subframes. In the FDD mode, eNB-to-RN and RN-to-UE transmissions occur on the downlink frequency band, while RN-to-eNB and UE-to-RN transmissions occur on the uplink frequency band. Because the LTE system is mainly applied to a broadband system, and the 230MHz frequency band is mainly applied to a narrowband data transmission radio system for industrial wireless data acquisition and transmission at present, and the 230MHz frequency band uses 25KHz as a frequency point for use, and the frequency band is discrete and discontinuous, the frame structure provided by the relay scheme of LTE-a cannot meet the working requirement of the wireless private network relay node on the 230MHz frequency band.
Disclosure of Invention
Embodiments of the present invention provide a data transmission method and apparatus for a relay area, which overcome the above problems or at least partially solve the above problems.
In a first aspect, an embodiment of the present invention provides a data transmission method in a relay area, including:
determining a preset wireless frame structure corresponding to a current sub-band;
performing data transmission on the current sub-band based on the preset wireless frame structure;
the preset radio frame structure comprises 5 subframes, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, and the first symbol of the fourth subframe is set as a relay guard interval.
In a second aspect, an embodiment of the present invention provides a data transmission apparatus in a relay area, including:
the frame structure determining module is used for determining a preset wireless frame structure corresponding to the current sub-band;
the communication module is used for carrying out data transmission on the current sub-band based on the preset wireless frame structure;
the preset radio frame structure comprises 5 subframes, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, and the first symbol of the fourth subframe is set as a relay guard interval.
In a third aspect, an embodiment of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the data transmission method for a relay area as provided in the first aspect when executing the program.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the data transmission method of the relay area as provided in the first aspect.
According to the data transmission method and device for the relay area, provided by the embodiment of the invention, a new frame structure is adopted for data transmission in the relay area, so that the data transmission method and device can be better suitable for resource use of a frequency point of 25kHz in a 230MHz frequency band.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a data transmission method for a relay area according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a frame structure for transmitting PSS and SSS in a synchronous broadcast sub-band according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a frame structure for sending a PBCH in a synchronized broadcast sub-band according to an embodiment of the present invention;
fig. 4 is a radio frame structure corresponding to a service sub-band provided in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a data transmission apparatus in a relay area according to an embodiment of the present invention;
fig. 6 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a data transmission method for a relay area provided in an embodiment of the present invention includes:
specifically, the embodiment of the present invention provides a frame structure applied to a relay area of an LTE230 wireless private network system, where the relay area refers to an area formed by a relay node and a terminal device. The data transmission method of the relay area provided by the embodiment of the invention is suitable for the synchronization, the broadcasting and the service data interaction between the terminal equipment UE and the relay node RN in the relay area of the LTE230 wireless private network system. The execution main body of the method provided by the embodiment of the invention can be terminal equipment UE or a relay node RN.
And when the terminal equipment UE is taken as an execution main body, determining a preset wireless frame structure corresponding to the current sub-band. When the relay node RN is used as an execution main body, the scheduling terminal works in a sub-band adopting a preset wireless frame structure.
the preset radio frame structure comprises 5 subframes, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, and the first symbol of the fourth subframe is set as a relay guard interval.
Specifically, in order to ensure that the LTE230 system and the relay area work normally, the relay area defines a new wireless frame structure, the wireless frame structure of the relay area reserves a downlink part of an original frame structure of a macro base station of the LTE230 system, and an uplink part of the original frame structure is divided into a downlink part and an uplink part for sending downlink data and uplink data of the relay area.
The preset radio frame structure specifically comprises 5 subframes, the subframe index is from 0 to 4, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, namely the last 4 symbols of the subframe 1 and all symbols of the subframe 2 are used for relay area downlink data transmission. All symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, that is, all symbols of the subframe 3 except the first symbol and all symbols of the subframe 4 are used for relay area uplink data transmission. And setting a first symbol of the fourth subframe as a relay protection interval for isolating uplink and downlink data transmission of a relay region.
It should be noted that, in the embodiment of the present invention, data transmission at least includes control information or service data transmission.
And all symbols of a first subframe and the first 4 symbols of a second subframe of the preset radio frame structure are used as reserved resources, wherein the reserved resources represent resources which are not configured to be used for transmitting data in a relay area. It can be understood that all symbols of the subframe 0 and the first 4 symbols of the subframe 1 do not send any signal in the relay area, and all symbols of the subframe 0 and the first 4 symbols of the subframe 1 serve as reserved resources, which may enable the relay node to communicate with the macro base station through all symbols of the subframe 0 and the first 4 symbols of the subframe 1, for example, the relay node receives a paging message sent by the base station.
In one embodiment, each subframe of the preset radio frame structure corresponds to 9 orthogonal frequency division multiplexing, OFDM, symbols in the time domain and 11 subcarriers in the frequency domain.
According to the data transmission method of the relay area, provided by the embodiment of the invention, the data transmission is carried out in the relay area by adopting a new frame structure, so that the method can better adapt to the resource use of a frequency point of 25kHz in a 230MHz frequency band.
The LTE230 relay zone sub-band comprises a synchronous broadcast sub-band and a plurality of service sub-bands.
In an embodiment, if the current subband is a synchronous broadcast subband, the uplink resources of the preset radio frame structure correspondingly include two sets of PRACH resources, where a first set of PRACH resources is uniformly coded and allocated to 4 cells for random access, and a second set of PRACH resources is uniformly coded and allocated to 4 cells for service request.
Specifically, if the current subband is a synchronous broadcast subband, the principle of sending the synchronization signal and the broadcast signal on the synchronous broadcast subband is as follows: 1) the synchronous signal and the broadcast signal are sent in a time-sharing mode; 2) all symbols of the subframe 0 and the first 4 symbols of the subframe 1 are used as reserved resources, and signals are not sent; 3) the uplink resources of the preset wireless frame structure comprise two groups of Physical Random Access Channel (PRACH) resources, namely, all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are equally divided into two groups of Physical Random Access Channel (PRACH) resources, wherein the first group of PRACH resources are uniformly coded and distributed to 4 cells for random access, and the second group of PRACH resources are uniformly coded and distributed to 4 cells for service request. Wherein, the code division to 4 cells means that 4 groups of lead codes which do not interfere with each other are generated and distributed to 4 cells.
Based on the content of the foregoing embodiment, if the data to be transmitted is a synchronization signal, correspondingly, based on the preset radio frame structure, the data transmission on the current subband specifically includes:
and uniformly dividing the downlink resources of the preset radio frame structure into two parts, wherein one part is used for bearing a Primary Synchronization Signal (PSS), the other part is used for bearing an auxiliary synchronization signal (SSS), and the PSS and the SSS are transmitted on the current sub-band.
Specifically, if the current subband is a synchronous broadcast subband and the data to be transmitted is a synchronous signal, the downlink resource of the preset frame structure is uniformly divided into two parts, as shown in fig. 2, which is a frame structure diagram for transmitting the PSS and the SSS of the synchronous broadcast subband provided in the embodiment of the present invention. The last 4 symbols of the second subframe and all symbols of the third subframe are equally divided into two parts, wherein one part is used for carrying the primary synchronization signal PSS, and the other part is used for carrying the secondary synchronization signal SSS. The uplink resources of the preset frame structure, namely all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are equally divided into two groups of PRACH resources.
And the relay node RN sends the primary synchronization signal PSS and the secondary synchronization signal SSS to terminal equipment for synchronization on the current subband.
And the terminal equipment receives the primary synchronization signal PSS and the secondary synchronization signal SSS on the current sub-band.
Based on the content of the foregoing embodiment, if the data to be transmitted is a synchronization signal, correspondingly, based on the preset radio frame structure, the data transmission on the current subband specifically includes:
and utilizing the downlink resource of the preset wireless frame structure to bear the broadcast signal, and transmitting the broadcast signal on the current sub-band.
Specifically, if the current subband is a synchronous broadcast subband and the data to be transmitted is a synchronous signal, the broadcast signal is carried by using the downlink resource of the preset radio frame structure, and the broadcast signal is transmitted on the current subband. Fig. 3 is a schematic diagram of a frame structure for sending a PBCH in a synchronized broadcast subband according to an embodiment of the present invention. And the downlink resources of the preset frame structure, namely the last 4 symbols of the second subframe and all the symbols of the third subframe bear PBCH broadcast signals.
And the relay node RN sends the broadcast signal to the terminal equipment on the current subband through PBCH. And the terminal equipment receives the broadcast signal on the current sub-band.
Based on the content of the foregoing embodiment, if the current sub-band is a service sub-band, correspondingly, a symbol used for carrying an uplink reference signal in the fourth sub-frame of the preset radio frame structure is shared by a physical uplink control channel PUCCH and a physical uplink shared channel PUSCH.
Specifically, as shown in fig. 4, for the radio frame structure corresponding to the service sub-band provided in the embodiment of the present invention, a symbol used for carrying an uplink reference signal in the fourth sub-frame is shared by a physical uplink control channel PUCCH and a physical uplink shared channel PUSCH. It can be understood that the uplink reference signal on the fourth subframe is not transmitted when both PUCCH and PUSCH are not transmitted.
As shown in fig. 5, a schematic structural diagram of a data transmission apparatus in a relay area according to an embodiment of the present invention includes: a frame structure determination module 501 and a communication module 502, wherein,
a frame structure determining module 501, configured to determine a preset wireless frame structure corresponding to a current subband;
specifically, the embodiment of the present invention provides a frame structure applied to a relay area of an LTE230 wireless private network system, where the relay area refers to an area formed by a relay node and a terminal device. And the frame structure determining module determines a preset wireless frame structure corresponding to the current sub-band.
A communication module 502, configured to perform data transmission on the current subband based on the preset wireless frame structure;
the preset radio frame structure comprises 5 subframes, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, and the first symbol of the fourth subframe is set as a relay guard interval.
Specifically, in order to ensure that the LTE230 system and the relay area work normally, the relay area defines a new wireless frame structure, the wireless frame structure of the relay area reserves a downlink part of an original frame structure of a macro base station of the LTE230 system, and an uplink part of the original frame structure is divided into a downlink part and an uplink part for sending downlink data and uplink data of the relay area.
The preset radio frame structure specifically comprises 5 subframes, the subframe index is from 0 to 4, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, namely the last 4 symbols of the subframe 1 and all symbols of the subframe 2 are used for relay area downlink data transmission. All symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, that is, all symbols of the subframe 3 except the first symbol and all symbols of the subframe 4 are used for relay area uplink data transmission. And setting a first symbol of the fourth subframe as a relay protection interval for isolating uplink and downlink data transmission of a relay region.
The communication module 502 performs data transmission on the current sub-band based on the preset wireless frame structure. It should be noted that, in the embodiment of the present invention, data transmission at least includes control information or service data transmission.
And all symbols of a first subframe and the first 4 symbols of a second subframe of the preset radio frame structure are used as reserved resources, wherein the reserved resources represent resources which are not configured to be used for transmitting data in a relay area. It can be understood that all symbols of the subframe 0 and the first 4 symbols of the subframe 1 do not send any signal in the relay area, and all symbols of the subframe 0 and the first 4 symbols of the subframe 1 serve as reserved resources, which may enable the relay node to communicate with the macro base station through all symbols of the subframe 0 and the first 4 symbols of the subframe 1, for example, the relay node receives a paging message sent by the base station.
The data transmission device of the relay area provided by the embodiment of the invention adopts a new frame structure to transmit data in the relay area, and can better adapt to the resource use of a frequency point of 25kHz in a 230MHz frequency band.
Fig. 6 is a schematic entity structure diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 6, the electronic device may include: a processor (processor)610, a communication Interface (Communications Interface)620, a memory (memory)630 and a communication bus 640, wherein the processor 610, the communication Interface 620 and the memory 630 communicate with each other via the communication bus 640. The processor 610 may invoke a computer program stored on the memory 630 and executable on the processor 610 to perform the data transmission method of the relay area provided by the above method embodiments, for example, including: determining a preset wireless frame structure corresponding to a current sub-band; performing data transmission on the current sub-band based on the preset wireless frame structure; the preset radio frame structure comprises 5 subframes, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, and the first symbol of the fourth subframe is set as a relay guard interval.
In addition, the logic instructions in the memory 630 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the data transmission method for a relay area provided in the foregoing method embodiments, for example, including: determining a preset wireless frame structure corresponding to a current sub-band; performing data transmission on the current sub-band based on the preset wireless frame structure; the preset radio frame structure comprises 5 subframes, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, and the first symbol of the fourth subframe is set as a relay guard interval.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A data transmission method of a relay area is characterized by comprising the following steps:
determining a preset wireless frame structure corresponding to a current sub-band;
performing data transmission on the current sub-band based on the preset wireless frame structure;
the preset radio frame structure comprises 5 subframes, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, and the first symbol of the fourth subframe is set as a relay guard interval.
2. The method of claim 1, wherein all symbols of a first subframe and the first 4 symbols of a second subframe of the preset radio frame structure are reserved resources, wherein the reserved resources are characterized by resources that are not configured for transmitting data in the relay region.
3. The data transmission method of the relay area according to claim 1, wherein if the current sub-band is a synchronization broadcast sub-band, the uplink resources of the preset radio frame structure correspondingly include two sets of PRACH resources, where a first set of PRACH resources is uniformly coded to 4 cells for random access and a second set of PRACH resources is uniformly coded to 4 cells for service request.
4. The method of claim 3, wherein if the data to be transmitted is a synchronization signal, correspondingly, based on the preset radio frame structure, the data transmission on the current subband specifically includes:
and uniformly dividing the downlink resources of the preset radio frame structure into two parts, wherein one part is used for bearing a Primary Synchronization Signal (PSS), the other part is used for bearing an auxiliary synchronization signal (SSS), and the PSS and the SSS are transmitted on the current sub-band.
5. The method of claim 3, wherein if the data to be transmitted is a broadcast signal, correspondingly, based on the preset radio frame structure, the data transmission on the current subband specifically includes:
and utilizing the downlink resource of the preset wireless frame structure to bear the broadcast signal, and transmitting the broadcast signal on the current sub-band.
6. The method according to claim 1, wherein if the current sub-band is a traffic sub-band, a symbol for carrying an uplink reference signal in a fourth sub-frame of the predetermined radio frame structure is shared by a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH).
7. The method of claim 1, wherein each subframe of the predetermined radio frame structure corresponds to 9 OFDM symbols in time domain and 11 subcarriers in frequency domain.
8. A data transmission apparatus in a relay area, comprising:
the frame structure determining module is used for determining a preset wireless frame structure corresponding to the current sub-band;
the communication module is used for carrying out data transmission on the current sub-band based on the preset wireless frame structure;
the preset radio frame structure comprises 5 subframes, the last 4 symbols of the second subframe and all symbols of the third subframe are used for relay area downlink data transmission, all symbols of the fourth subframe except the first symbol and all symbols of the fifth subframe are used for relay area uplink data transmission, and the first symbol of the fourth subframe is set as a relay guard interval.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor when executing the program performs the steps of the method for data transmission of a relay access link according to any of claims 1 to 7.
10. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the data transmission method of a relay access link according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911050.8A CN112565157A (en) | 2019-09-25 | 2019-09-25 | Data transmission method and device for relay area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911050.8A CN112565157A (en) | 2019-09-25 | 2019-09-25 | Data transmission method and device for relay area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112565157A true CN112565157A (en) | 2021-03-26 |
Family
ID=75029218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910911050.8A Withdrawn CN112565157A (en) | 2019-09-25 | 2019-09-25 | Data transmission method and device for relay area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112565157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023016203A1 (en) * | 2021-08-13 | 2023-02-16 | 中兴通讯股份有限公司 | Method and apparatus for accessing cell served by base station, storage medium, and electronic apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101374012A (en) * | 2007-08-20 | 2009-02-25 | 中兴通讯股份有限公司 | Wireless transmission method for TDD OFDM system and physical layer frame structure |
| CN101374015A (en) * | 2007-08-20 | 2009-02-25 | 中兴通讯股份有限公司 | Wireless transmission method supporting relay mode and physical layer frame structure |
| CN101442357A (en) * | 2007-11-19 | 2009-05-27 | 大唐移动通信设备有限公司 | Method and system for wireless transmission adopting Relay supported frame structure |
| CN101998432A (en) * | 2009-08-13 | 2011-03-30 | 大唐移动通信设备有限公司 | Method, equipment and system for configuring frame structure of backhaul link |
| US20110194412A1 (en) * | 2008-10-01 | 2011-08-11 | Kyu Jin Park | Method and apparatus for wireless resource allocation for relay in wireless communication system |
| US20110267992A1 (en) * | 2009-01-05 | 2011-11-03 | Lg Electronics Inc. | Method for relaying data performed by a relay station in wireless communication system based on tdd |
-
2019
- 2019-09-25 CN CN201910911050.8A patent/CN112565157A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101374012A (en) * | 2007-08-20 | 2009-02-25 | 中兴通讯股份有限公司 | Wireless transmission method for TDD OFDM system and physical layer frame structure |
| CN101374015A (en) * | 2007-08-20 | 2009-02-25 | 中兴通讯股份有限公司 | Wireless transmission method supporting relay mode and physical layer frame structure |
| CN101442357A (en) * | 2007-11-19 | 2009-05-27 | 大唐移动通信设备有限公司 | Method and system for wireless transmission adopting Relay supported frame structure |
| US20110194412A1 (en) * | 2008-10-01 | 2011-08-11 | Kyu Jin Park | Method and apparatus for wireless resource allocation for relay in wireless communication system |
| US20110267992A1 (en) * | 2009-01-05 | 2011-11-03 | Lg Electronics Inc. | Method for relaying data performed by a relay station in wireless communication system based on tdd |
| CN101998432A (en) * | 2009-08-13 | 2011-03-30 | 大唐移动通信设备有限公司 | Method, equipment and system for configuring frame structure of backhaul link |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023016203A1 (en) * | 2021-08-13 | 2023-02-16 | 中兴通讯股份有限公司 | Method and apparatus for accessing cell served by base station, storage medium, and electronic apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102026209B (en) | Method, system and device for transmitting information and configuring subframes | |
| CN104486055B (en) | Signaling method and device in relay communications system | |
| CN102326347B (en) | The method distributing the reference signal of back haul link in relay communications system and the method and apparatus using the method to send/receive data | |
| EP2922358B1 (en) | Interference processing at a serving base station | |
| CN109964522B (en) | Method and apparatus for transmitting and receiving downlink pre-emption indication data in next generation wireless network | |
| CN102113398B (en) | Resource allocation method for backhaul link and access link in wireless communication system including relay | |
| KR102310822B1 (en) | Random access method, random access response method, terminal device and network device | |
| US20190037502A1 (en) | Power control method and device | |
| US9450738B2 (en) | Method to optimize almost blank subframe usage in a wireless network | |
| CN102404841B (en) | Implementation method and equipment for synchronization between heterogeneous systems | |
| CN102083096B (en) | Control signaling sending and signaling detecting method, system and device on return link | |
| KR20190140983A (en) | A method and apparatus for configuring a transmission direction of time-frequency resources | |
| JP2013085086A (en) | Wireless communication apparatus, wireless communication method, and wireless communication system | |
| JP7384227B2 (en) | User equipment, base station, and method | |
| KR20110095060A (en) | Apparatus and method for transmitting and receiving channel state information reference symbol in relay network system | |
| WO2012165067A1 (en) | Wireless resource allocation method, wireless resource allocation device, and communication system | |
| CN107535010B (en) | LTE in-band relay method, device and system | |
| CN105407532B (en) | D2D communication method and device | |
| US20220256487A1 (en) | Rate matching indication method and apparatus, and device and storage medium | |
| US20230188252A1 (en) | Resource multiplexing indication method and apparatus and relay node | |
| KR101784040B1 (en) | Method and device for avoiding inter-cell interference in a wireless access system | |
| CN102457910B (en) | Common search space mapping method of relay node (RN) and apparatus thereof | |
| US10306646B2 (en) | Method for device-to-device communication, base station and user equipment | |
| CN112565157A (en) | Data transmission method and device for relay area | |
| US20230006799A1 (en) | Communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210326 |
|
| WW01 | Invention patent application withdrawn after publication |