CN108370559B - Method, device and system for transmitting data - Google Patents
Method, device and system for transmitting data Download PDFInfo
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- CN108370559B CN108370559B CN201580085296.4A CN201580085296A CN108370559B CN 108370559 B CN108370559 B CN 108370559B CN 201580085296 A CN201580085296 A CN 201580085296A CN 108370559 B CN108370559 B CN 108370559B
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Abstract
The embodiment of the invention provides a method, a device and a system for transmitting data, which relate to the field of data transmission, wherein the method comprises the following steps: acquiring identifiers of at least two carriers, wherein the frequencies of the carriers in the at least two carriers are different, the at least two carriers are used for carrying data of terminal equipment, the data comprises at least one of data information and control information, the control information comprises a time-frequency resource position where the data information is located and a channel coding mode, the at least one of the data information and the control information is carried on the at least two carriers, and the contents of the data information and the at least one of the control information carried on the at least two carriers are the same; and transmitting the data of the terminal equipment on the at least two carriers. The invention improves the successful probability of data transmission and avoids the time delay caused by retransmission, thereby meeting the requirement of short time delay and high reliability on communication service.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for transmitting data.
Background
In a Long Term Evolution (LTE) system, a base station configures multiple carriers for communicating with a terminal, and each carrier configures a Channel such as a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH).
Taking an example that a base station sends Downlink data to a terminal, the base station carries Downlink data Information in a PDSCH, carries Downlink Control Information (DCI) in a PDCCH, and the DCI includes a position of a time-frequency resource where the Downlink data Information carried by the same carrier is located and a channel coding mode, and the Downlink data Information carried by each carrier is different.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
the terminal can decode the downlink data only if the DCI is successfully decoded, and if any one of the DCI and the downlink data information fails to be decoded, the content of the data information cannot be acquired, and the DCI and the downlink data information can only be retransmitted until the decoding is successful, so that the transmission delay is long, and the communication service requirement of short delay and high reliability cannot be met.
Disclosure of Invention
In order to solve the problem that the prior art cannot meet the requirement of short-delay and high-reliability communication service, embodiments of the present invention provide a method, an apparatus, and a system for transmitting data. The technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a method for transmitting data, where the method includes:
acquiring identifiers of at least two carriers, wherein the frequencies of the carriers in the at least two carriers are different, the at least two carriers are used for carrying data of terminal equipment, the data comprises at least one of data information and control information, the control information comprises a time-frequency resource position where the data information is located and a channel coding mode, the at least one of the data information and the control information is carried on the at least two carriers, and the contents of the data information and the at least one of the control information carried on the at least two carriers are the same;
and transmitting the data of the terminal equipment on the at least two carriers.
By bearing at least one of the data information and the control information on at least two carriers and having the same content of at least one of the data information and the control information on at least two carriers, even if one carrier has poor communication quality, the data information or the control information with the same content borne on other carriers can be successfully decoded, the probability of successful data transmission is improved, the time delay caused by retransmission is avoided, and the communication service requirement of short time delay and high reliability is met.
In a possible implementation manner of the first aspect, when the control information and the data information are both carried on the at least two carriers, the control information carried by the at least two carriers each includes a time-frequency resource location where the data information carried by the at least two carriers is located and a channel coding manner;
alternatively, the first and second electrodes may be,
when the control information and the data information are both carried on the at least two carriers, the control information carried by the at least two carriers respectively comprises time-frequency resource positions and channel coding modes of the data information carried by the carriers where the control information and the data information are respectively located;
alternatively, the first and second electrodes may be,
when the control information is carried on one carrier of the at least two carriers and the data information is carried on the at least two carriers, the control information comprises time-frequency resource positions and channel coding modes of the data information carried by the at least two carriers;
alternatively, the first and second electrodes may be,
when the control information is carried on the at least two carriers and the data information is carried on one of the at least two carriers, the control information carried by the at least two carriers includes a time-frequency resource position where the data information is located and a channel coding mode.
The above four implementations provide different relationships between control information and data information.
In another possible implementation manner of the first aspect, the positions of the time-frequency resources in which the data carried by the at least two carriers are located are different.
The positions of the time-frequency resources where the data carried by at least two carriers are located are not limited to be the same, and the application range is expanded.
In yet another possible implementation manner of the first aspect, the location information of the time-frequency resource where the control information carried by the at least two carriers is located is carried in a physical layer message, a medium access control MAC message, or a radio resource control RRC message.
The implementation mode can combine and decode the control information with the same content when the positions of the time-frequency resources of the control information carried by at least two carriers are different, thereby improving the probability of successfully decoding the control information and finally meeting the requirement of short-delay and high-reliability communication service.
In yet another possible implementation manner of the first aspect, the channel coding manners of the data carried by the at least two carriers are the same.
The data coding mode can be combined and decoded, the successful decoding probability is improved, and the requirement of short-delay and high-reliability communication service is finally met.
In yet another possible implementation manner of the first aspect, the communication system in which the at least two carriers are located includes at least two communication systems.
The communication system in which the carrier wave is located is not limited, and the application range is wide.
In another possible implementation manner of the first aspect, the acquiring the identities of the at least two carriers includes:
and acquiring the identifiers of the at least two carriers from a message of a communication protocol layer, wherein the communication protocol layer is one of a physical layer, a Medium Access Control (MAC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer and a Radio Resource Control (RRC) layer.
The implementation mode realizes the acquisition of the identifiers of at least two carriers, and is realized on the basis of the existing structure, and the cost is low.
In yet another possible implementation manner of the first aspect, the method further includes:
after receiving information with the same content on the at least two carriers, merging the information, wherein the information is the control information or the data information;
and decoding the combined information.
By combining decoding, the successful decoding probability is improved, the time delay of retransmission caused by decoding failure is reduced, and the requirement of short time delay and high reliability on communication service is met.
In yet another possible implementation manner of the first aspect, the method further includes:
after receiving information with the same content on the at least two carriers, decoding the information received on one carrier, wherein the information is the control information or the data information;
decoding the information received on the other carrier when decoding of the information received on the one carrier fails.
And decoding the information of each carrier in sequence until the decoding is successful, improving the probability of successful decoding, reducing the time delay of retransmission caused by decoding failure, and meeting the requirement of short time delay and high reliability on communication service.
In yet another possible implementation manner of the first aspect, the method further includes:
after receiving the information with the same content on the at least two carriers, if the decoding of the information received on the at least two carriers fails, re-receiving the information with the same content on the at least two carriers, wherein the information is the control information or the data information.
The decoding fails and the information is retransmitted, and the communication reliability can be ensured without considering the time delay.
Optionally, the method further comprises:
combining the information re-received on the at least two carriers and received on the at least two carriers prior to re-reception;
and decoding the combined information.
By combining decoding, the successful decoding probability is improved, the time delay of retransmission caused by decoding failure is reduced, and the requirement of short time delay and high reliability on communication service is met.
In a second aspect, an embodiment of the present invention further provides an apparatus for transmitting data, where the apparatus includes a module, such as an obtaining module and a transmitting module, for implementing the method described in the first aspect.
In a third aspect, an embodiment of the present invention further provides an apparatus for transmitting data, where the apparatus includes: a memory for storing software programs and modules, and a processor coupled to the memory, wherein the processor is configured to execute the method of the first aspect when the processor is configured to run or execute the software programs and modules stored in the memory.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable medium for storing a program code for execution by a terminal, where the program code includes instructions for executing the method according to the first aspect.
In a fifth aspect, an embodiment of the present invention further provides a system for transmitting data, where the system includes:
a sending end, configured to obtain identifiers of at least two carriers, where frequencies of carriers of the at least two carriers are different, the at least two carriers are used to carry data of a terminal device, the data includes at least one of data information and control information, the control information includes a time-frequency resource location where the data information is located and a channel coding mode, the at least one of the data information and the control information is carried on the at least two carriers, and at least one of the data information and the control information carried on the at least two carriers has the same content; transmitting data of the terminal equipment on the at least two carriers;
a receiving end, configured to obtain identifiers of the at least two carriers; and receiving the data of the terminal equipment on the at least two carriers.
The technical scheme provided by the embodiment of the invention has the beneficial effects that:
by bearing at least one of the data information and the control information on at least two carriers and having the same content of at least one of the data information and the control information on at least two carriers, even if one carrier has poor communication quality, the data information or the control information with the same content borne on other carriers can be successfully decoded, the probability of successful data transmission is improved, the time delay caused by retransmission is avoided, and the communication service requirement of short time delay and high reliability is met.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a system architecture for transmitting data according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for transmitting downlink data according to an embodiment of the present invention;
5 a-5 d are diagrams illustrating the relationship between control information and data provided by embodiments of the present invention;
fig. 6, 7 a-7 c are flowcharts of a method for transmitting uplink data according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an apparatus for transmitting data according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a system for transmitting data according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The following briefly introduces a system architecture for transmitting data according to an embodiment of the present invention with reference to fig. 1. As shown in fig. 1, the system architecture includes a terminal 1 and at least one base station (base station 2a and base station 2b are taken as examples in fig. 1) providing communication service for the terminal 1, and the terminal 1 is located at a place where a service area of the base station 2a and a service area of the base station 2b overlap (a circular area drawn with the base station as a center in fig. 1 represents the service area of the base station), so that the base station 2a and the base station 2b can simultaneously provide communication service for the terminal 1 in their service areas. The base stations 2a and 2b provide communication services for the terminal 1, specifically, the terminal 1 transmits data information, which includes downlink data information sent to the terminal 1 and uplink data information sent by the receiving terminal 1. Meanwhile, the base station 2a and the base station 2b also interact with the terminal 1 for control information, and the control information includes a time-frequency resource position where the data information is located and a channel coding mode, so as to receive the data information.
For example, when downlink data information is transmitted to the terminal 1, the base station 2a may transmit the downlink data information and control information of the downlink data information to the terminal 1 using the carriers 3a and 3b, or the base station 2a and the base station 2b may transmit the downlink data information and control information of the downlink data information to the terminal 1 using the carriers 3a and 3 c. If the terminal 1 transmits uplink data information, in a communication system such as Long Term Evolution (LTE), the base station 2a may transmit control information of downlink data information to the terminal 1 using the carriers 3a and 3b, the base station 2a and the base station 2b may transmit control information of downlink data information to the terminal 1 using the carriers 3a and 3c, or the terminal 1 may transmit downlink data information to the base station 2a using the carriers 3a and 3 b; in a system such as Code Division Multiple Access (CDMA), the terminal 1 can transmit downlink data information and control information of the downlink data information to the base station 2a by using the carrier 3a and the carrier 3 b.
It should be noted that the number of base stations transmitting data with the same terminal and the number of carriers carrying data information and control information between the same base station and the same terminal in fig. 1 are only examples, and the present invention is not limited thereto.
In a specific implementation, the data information may be service content interacted between the base station and the terminal, such as voice generated by a call service, text generated by a short message service, text, picture, and voice generated by an internet service. The control information includes information necessary for transmitting the data information, such as the location of the time-frequency resource where the data information is located, and the channel coding mode of the data information.
The following describes a terminal and a base station implementing the present invention with reference to specific hardware structures.
Fig. 2 shows a terminal structure for transmitting data according to an embodiment of the present invention. The terminal 1 may be a smart phone, a tablet computer, a notebook computer, etc. The terminal 1 may include Radio Frequency (RF) circuitry 110, memory 120 including one or more computer-readable storage media, an input unit 130, a display unit 140, a sensor 150, audio circuitry 160, a wireless fidelity (WiFi) module 170, a processor 180 including one or more processing cores, and a power supply 190. Those skilled in the art will appreciate that the terminal configuration shown in fig. 2 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. Wherein:
the processor 180 is a control center of the terminal 1, connects various parts of the entire terminal 1 using various interfaces and lines, and performs various functions of the terminal 1 and processes data by running or executing software programs and/or modules stored in the memory 120 and calling data stored in the memory 120, thereby performing overall monitoring of the terminal 1. Optionally, processor 180 may include one or more processing cores; preferably, the processor 180 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 180.
The memory 120 may be used to store various data, such as various configuration parameters, software programs and modules, and the processor 180 executes various functional applications and data processing by operating the software programs and modules stored in the memory 120. The memory 120 may mainly include a program storage area and a data storage area, wherein the program storage area may store the operating system 121, the obtaining module 122, and the transmission module 123, and may further include a first merging module 124, a first decoding module 125, a second merging module 126, a second decoding module 127, and the like (the following behavior examples); the storage data area may store data created according to the use of the terminal 1, such as resource allocation information and the like. Further, the memory 120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 120 may further include a memory controller to provide the processor 180 and the input unit 130 with access to the memory 120.
The RF circuit 110 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, receives downlink information from a base station and then sends the received downlink information to the one or more processors 180 for processing; in addition, data relating to uplink is transmitted to the base station. In general, the RF circuit 110 includes, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuitry 110 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), and the like.
Fig. 3 shows a structure of a base station for transmitting data according to an embodiment of the present invention. The Base station 2 may include a plurality of antennas 210, a Radio Frequency module 220 (Radio Remote Unit, RRU for short) or (Radio Frequency Unit, RFU for short), a baseband Unit 230 (Building Base band Unit, BBU for short), the baseband Unit 230 includes a memory 231 and a processor 232, the structure of the Base station 2 shown in fig. 3 does not constitute a limitation to the Base station 2, and may include more or less components than those shown in the figure, or may combine some components, or may be arranged in different components.
The processor 232 is a control center of the base station 2, connects various parts of the entire base station 2 using various interfaces and lines, and performs various functions of the base station 2 and processes data by operating or executing software programs and/or modules stored in the memory 231 and calling data stored in the memory 231, thereby performing overall control of the base station 2. Optionally, processor 232 may include one or more processing cores.
The memory 231 may be used to store various data, such as various configuration parameters, as well as to store software programs and modules. The processor 232 executes various functional applications and data processing by executing software programs and modules stored in the memory 231. The memory 231 may mainly include a program storage area and a data storage area, wherein the program storage area may store the operating system 231a, the obtaining module 231b, and the transmitting module 231c, and may further include a first merging module 231d, a first decoding module 231e, a second merging module 231f, a second decoding module 231g, and the like; the storage data area may store data created according to the use of the base station 2, such as resource configuration information and the like. In addition, the Memory 231 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. Accordingly, memory 231 may also include a memory controller to provide processor 232 access to memory 231.
Fig. 4 shows a method for transmitting data according to an embodiment of the present invention, which is illustrated by applying the method to the terminal shown in fig. 2 and the base station shown in fig. 3, and referring to fig. 4, the method includes:
step 301: the base station obtains the identities of at least two carriers.
In this embodiment, the frequencies of the respective carriers of the at least two carriers are different from each other. At least two carriers are used for carrying data of the terminal device, and the data includes at least one of data information and control information, such as the carrier 3a and the carrier 3b shown in fig. 1, or the carrier 3a and the carrier 3 c. The control information includes the time frequency resource position where the data information is located and the channel coding mode. At least one of the data information and the control information is carried on at least two carriers, and at least one of the data information and the control information carried on the at least two carriers is the same in content. The content is the same, which means that the code streams before the channel coding are the same.
Specifically, the channel coding scheme includes convolutional coding, Turbo (Turbo) coding, Low Density Parity Check (LDPC) coding, Polar (Polar) coding, and the like.
In practical applications, in addition to acquiring the identities of at least two carriers, it is also possible to acquire indication information indicating information having the same content in the data information and the control information. When the indication information indicates that the control information content is the same, the control information content can be known to be the same according to the indication information, and then the control information can be merged and decoded; when the indication information indicates that the data information content is the same, the data information content can be known to be the same according to the indication information, and then the data information can be merged and decoded; when the indication information indicates that the control information and the data information have the same content, the control information and the data information can be known to have the same content according to the indication information, and then the control information is merged and decoded, and the data information is merged and decoded.
The time frequency position of the control information can be obtained by the receiving end in a blind detection mode. Specifically, the receiving end does not know what format of control information is transmitted by the transmission channel of the current control information, nor the location of the time-frequency resource where the control information needed by the receiving end is located, but knows the control information needed by the receiving end currently. For expectations of different control information, a receiving end adopts a corresponding Radio Network Temporary Identity (RNTI) to descramble a Cyclic Redundancy Check (CRC), and then performs CRC Check, and if the Check is successful, the receiving end knows that the control information is required by itself and also knows a corresponding control information format, thereby further decoding the content of the control information and completing a blind Check process.
In an implementation manner of this embodiment, when the control information and the data information are both carried on at least two carriers, the control information carried by the at least two carriers includes time-frequency resource locations and channel coding manners where the data information carried by the at least two carriers is located. As shown in fig. 5a, the control information 4a on the carrier 3a and the control information 4b on the carrier 3b both include the time-frequency resource location and the channel coding mode where the data information 5a on the carrier 3a and the data information 5b on the carrier 3b are located.
In this implementation, the content of the control information carried by at least two carriers is the same. The content of the control information can be determined when the control information carried by any one carrier is successfully decoded, so that the probability of successfully decoding the control information can be improved when a plurality of carriers carry the control information with the same content, the control information is prevented from being retransmitted due to the failure of decoding, the transmission delay is reduced, and the requirement of short-time delay and high reliability on communication service is met. And the control information borne by the at least two carriers comprises the time-frequency resource positions and the channel coding modes of the data information borne by the at least two carriers, and any one control information can be successfully decoded, so that all the data information can be decoded, and the blind detection process of the control information is reduced.
Optionally, the positions of the time-frequency resources where the control information carried by the at least two carriers is located may be the same or different, and the application scope is wide. When the positions of the time-frequency resources where the control information carried by the at least two carriers are located are the same, the control information carried by the at least two carriers and having the same content can be directly combined and decoded, so that the probability of successful decoding of the control information is improved, and the requirement of short-delay and high-reliability communication service is finally met.
Preferably, the positions of the time-frequency resources where the control information carried by at least two carriers is located are different, so as to be suitable for most situations.
Preferably, when the positions of the time-frequency resources in which the Control information carried by the at least two carriers are located are different, the position information of the time-frequency resources in which the Control information carried by the at least two carriers is located is carried in a physical layer message, a Medium Access Control (MAC) message or a Radio Resource Control (RRC) message, so that the Control information with the same content can be merged and decoded when the positions of the time-frequency resources in which the Control information carried by the at least two carriers are located are different, the probability of successfully decoding the Control information is improved, and the requirement of short-delay and high-reliability communication service is finally met.
Optionally, the content of the data information carried by the at least two carriers may be the same or different, and the application scope is wide. If the contents of the data information carried by at least two carriers are the same, the probability of successful decoding of the data can be improved, and finally, the requirement of short-delay and high-reliability communication service is met.
Optionally, the positions of the time-frequency resources where the data information carried by the at least two carriers is located may be the same or different, and the application scope is wide. When the positions of the time-frequency resources where the data information carried by the at least two carriers are located are the same, the data information carried by the at least two carriers and having the same content can be directly merged and decoded, so that the probability of successful decoding of the data information is improved, and the requirement of short time delay and high reliability on communication service is met; when the positions of the time-frequency resources of the data information carried by at least two carriers are different, the positions of the time-frequency resources of the data information can be obtained through the control information, the data information is merged and decoded, the probability of successful decoding of the data information is improved, and the requirement of short time delay and high reliability on communication service is met.
Preferably, the positions of the time-frequency resources where the data information carried by the at least two carriers is located are different, so as to adapt to most situations.
Optionally, the channel coding modes of the data information carried by the at least two carriers may be the same or different, and the application scope is wide.
Preferably, the channel coding modes of the data information carried by the at least two carriers are the same, and if the coding of the data information carried by the at least two carriers is different, even if the content of the data information carried by the at least two carriers is the same, the data information carried by the at least two carriers with the same content cannot be merged and decoded.
Optionally, the communication system in which the at least two carriers are located includes at least two communication systems, and this embodiment may be implemented between various different communication systems, so that the decoding of data is limited by avoiding the difference of the communication systems, and the application range is greatly expanded.
Alternatively, the communication system in which the at least two carriers are located may be the same communication system.
In another implementation manner of this embodiment, when both the control information and the data information are carried on at least two carriers, the control information carried by the at least two carriers respectively includes a time-frequency resource location and a channel coding manner in which the data information carried by the carrier in which the control information and the data information are carried is located. As shown in fig. 5b, the control information 4a on the carrier 3a includes the time-frequency resource location and the channel coding mode of the data information 5a on the carrier 3a, and the control information on the carrier 3b includes the time-frequency resource location and the channel coding mode of the data information 5b on the carrier 3 b.
Optionally, the contents of the control information carried by the at least two carriers may be the same or different, and the application scope is wide. And when the contents of the control information carried by at least two carriers are the same, the probability of successful decoding of the control information can be improved, and the requirement of short-delay and high-reliability communication service is finally met.
Optionally, the positions of the time-frequency resources where the control information carried by the at least two carriers is located may be the same or different, and the effect is as described above, and will not be described in detail here.
Preferably, when the positions of the time-frequency resources in which the control information carried by the at least two carriers are located are different, the position information of the time-frequency resources in which the control information carried by the at least two carriers is located is carried in a physical layer message, a medium access control layer MAC message or an RRC message, and the effect is as described above and will not be described in detail herein.
Optionally, the content of the data information carried by at least two carriers may be the same or, as mentioned above, the effect is not described in detail here. It should be noted that in this implementation, at least one of the control information and the data information carried by at least two carriers is the same.
Optionally, the positions of the time-frequency resources where the data information carried by the at least two carriers is located may be the same or different, and the effect is as described above, and will not be described in detail here.
Optionally, the channel coding modes of the data information carried by the at least two carriers may be the same or different, and the effects are as described above, and are not described in detail here.
In another implementation manner of this embodiment, when the control information is carried on one carrier of the at least two carriers and the data information is carried on the at least two carriers, the control information includes a time-frequency resource location and a channel coding manner where the data information carried by the at least two carriers is located. As shown in fig. 5c, the control information 4a on the carrier 3a includes the time-frequency resource location and the channel coding mode where the data information 5a on the carrier 3a and the data information 5b on the carrier 3b are located.
In this implementation, the content of the data information carried by at least two carriers is the same.
Optionally, the positions of the time-frequency resources where the data information carried by the at least two carriers is located may be the same or different, and the effect is as described above, and will not be described in detail here.
Optionally, the channel coding modes of the data information carried by the at least two carriers may be the same or different, and the effects are as described above, and are not described in detail here.
In another implementation manner of this embodiment, when the control information is carried on at least two carriers and the data information is carried on one of the at least two carriers, the control information carried by the at least two carriers includes a time-frequency resource location where the data information is located and a channel coding manner. As shown in fig. 5d, the control information 4a on the carrier 3a and the control information 4b on the carrier 3b both include the time-frequency resource location and the channel coding mode where the data information 5a on the carrier 3a is located.
In this implementation, the content of the control information carried by at least two carriers is the same.
Optionally, the positions of the time-frequency resources where the control information carried by the at least two carriers is located may be the same or different, and the effect is as described above, and will not be described in detail here.
Preferably, when the positions of the time-frequency resources in which the control information carried by the at least two carriers are located are different, the position information of the time-frequency resources in which the control information carried by the at least two carriers is located is carried in a physical layer message, a medium access control layer MAC message or an RRC message, and the effect is as described above and will not be described in detail herein.
In this embodiment, the identities of the at least two carriers are configured by at least one base station and sent to the terminal by the at least one base station. Specifically, at least one base station obtains the identifiers of at least two carriers by accessing its own memory, and a terminal obtains the identifiers of at least two carriers by receiving the identifiers of at least two carriers sent by at least one base station.
Further, when the number of the base stations is at least two, the identities of the at least two carriers are sent to the terminal by a master base station of the at least two base stations. The main base station is the base station which establishes communication with the terminal first.
Specifically, the identifiers of the at least two carriers may be carried in a message of a communication Protocol layer, where the communication Protocol layer is one of a physical layer, a Media Access Control (MAC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Radio Resource Control (RRC) layer, so as to implement transmission of the identifiers of the at least two carriers.
Step 302: the base station transmits data of the terminal device on at least two carriers.
In this embodiment, the data of the terminal device includes data information and control information.
In practical application, the physical layer receives data sent by the MAC layer, processes the data and then sends the data. The MAC layer may issue data corresponding to at least two carriers one to the physical layer, or may issue only one copy of data to the physical layer. When the MAC layer issues data corresponding to at least two carriers to the physical layer, the physical layer may sequentially process each data as follows: adding Cyclic Redundancy Check (CRC), dividing, channel coding, rate matching, modulating, scrambling and antenna mapping. When the MAC layer issues only one copy of data to the physical layer, the physical layer may copy the copy of data to be equal to the number of at least two carriers, and then sequentially perform the following processing on each copy of data: adding CRC, dividing, channel coding, rate matching, modulating, scrambling and antenna mapping; or the data is processed by adding CRC, dividing and channel coding in sequence, then the number of the data after channel coding is duplicated to be equal to the number of at least two carriers, and finally the data is processed by rate matching, modulation, scrambling and antenna mapping in sequence.
It should be noted that, when the channel coding modes used for performing channel coding on each piece of data are the same, this embodiment does not limit that the redundancy versions used in rate matching are also the same, that is, the redundancy versions used for performing rate matching on each piece of data may be the same or different.
Step 303: the terminal acquires the identities of at least two carriers.
As described above, at least one base station obtains resource allocation information by accessing its own memory, and a terminal obtains resource allocation information by receiving resource allocation information sent by at least one base station.
Step 304: the terminal receives data of the terminal device on at least two carriers.
In practical application, if the terminal sets different modules to receive data on each carrier, an interface may be set between modules that receive carriers transmitting data information or control information with the same content, so as to combine and decode the data information and the control information with the same content.
Step 305: the terminal decodes the data.
In an implementation manner of this embodiment, the step 305 may include:
merging information with the same content received on at least two carriers, wherein the information is control information or data information;
and decoding the combined information.
In practical applications, combining refers to combining bit streams carried on at least two carriers according to a certain scale factor. Because the bit streams transmitted on the carriers contain a certain amount of information even if the bit streams are wrong, and the probability that the bit streams transmitted on the carriers have the same error position is too low, the performance after combination can be better than that before combination, and the decoding accuracy is higher at the moment.
It should be noted that, since the combining and decoding is to decode the information after superimposing, it is necessary to establish that the combining and decoding of the control information on at least two carriers is performed on the basis that the positions of the time-frequency resources where the control information is located are the same or the positions of the time-frequency resources where the control information is located are known, so as to accurately superimpose the control information together and perform decoding. In addition, if the receiving end sets different modules to receive data on each carrier, an interface may be set between modules receiving information with the same content, so as to merge and decode the information with the same content.
Optionally, this step 305 may further include:
if the decoding of the information received on the at least two carriers fails, the information with the same content is received on the at least two carriers again;
combining information re-received on the at least two carriers and received on the at least two carriers prior to re-reception;
and decoding the combined information.
The decoding success rate is improved by retransmission, and the communication reliability can be ensured under the condition of not considering time delay.
In practical application, after receiving and successfully decoding to obtain data information, a terminal sends a confirmation signal to a base station; after receiving and failing to successfully decode the data information, a negative acknowledgement signal is sent to the base station. Therefore, if the base station does not receive the response signal (the confirmation signal or the negative confirmation signal) sent by the terminal within the set time, the base station judges that the decoding of the control information fails and resends the control information; if the negative acknowledgement signal sent by the terminal is received within the set time, the decoding failure of the data information is judged, and the data information is retransmitted.
In another implementation manner of this embodiment, the step 305 may include:
decoding information received on one carrier, the information being control information or data information.
It is easy to know that on one hand, the existing decoding mode is not required to be changed, and the realization cost is low; on the other hand, when the information received on one carrier is successfully decoded, the information received on other carriers is not decoded, and blind detection processes (aiming at control information) and combining processes are reduced.
Optionally, this step 305 may further include:
if the decoding of the information received on one carrier fails, combining the information with the same content received on at least two carriers, wherein the information is control information or data information;
and decoding the combined information.
Preferably, this step 305 may further include:
if the decoding of the information received on the at least two carriers fails, the information with the same content is received on the at least two carriers again;
combining information re-received on the at least two carriers and received on the at least two carriers prior to re-reception;
and decoding the combined information.
Optionally, this step 305 may include:
if the decoding of the information received on one carrier fails, the information with the same content is received on at least two carriers again;
combining information re-received on the at least two carriers and received on the at least two carriers prior to re-reception;
and decoding the combined information.
Preferably, this step 305 may further include:
if the decoding of the information received on at least two carriers fails, the information received on the other carrier is decoded.
The execution of the above steps may be performed by the terminal and the at least one base station according to the aforementioned software modules. For example, step 301 is performed by at least one base station according to the obtaining module 231b in fig. 3, step 302 is performed by at least one base station according to the transmitting module 231c shown in fig. 3, step 303 is performed by the terminal according to the obtaining module 122 in fig. 2, step 304 is performed by the terminal according to the transmitting module 123 in fig. 2, and step 305 is performed by the terminal according to the first combining module 124, the first decoding module 125, the second combining module 126, and the second decoding module 127 in fig. 2.
The above embodiments may be applied to downlink data transmission in any communication System, such as Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), Code Division Multiple Access (CDMA), Universal Mobile Telecommunications System (UMTS), etc.
When a terminal sends data information to a base station, in some communication systems, such as CDMA and UMTS, control information may also be sent from the terminal to the base station, and at this time, sending of uplink data is basically the same as the above embodiment, except that an execution main body corresponding to a sending end and a receiving end is exchanged, that is, the sending end in the above embodiment is changed from the base station to the terminal, and the receiving end is changed from the terminal to the base station, as shown in fig. 6:
step 401: the terminal acquires the identities of at least two carriers.
Step 402: the terminal transmits data of the terminal device on at least two carriers.
Step 403: the base station obtains the identities of at least two carriers.
Step 404: the base station receives data of the terminal device on at least two carriers.
Step 405: the base station decodes the data.
The execution of the above steps can be performed by the terminal and the base station according to the aforementioned software modules. For example, step 401 is performed by the terminal according to the obtaining module 122 in fig. 2, step 402 is performed by the terminal according to the transmitting module 123 in fig. 2, step 403 is performed by the base station according to the obtaining module 231b in fig. 3, step 404 is performed by the base station according to the transmitting module 231c shown in fig. 3, and step 405 is performed by the base station according to the first combining module 231d, the first decoding module 231e, the second combining module 231f, and the second decoding module 231g in fig. 3.
In other communication systems, such as GSM, GPRS, LTE, email, and SMS, control information is sent from a base station to a terminal, and at this time, sending of uplink data is basically the same as the above embodiments, but the difference is mainly that the execution bodies of the sending end and the receiving end of the control information and the data information are not the same.
When control information is carried on at least two carriers and data information is carried on one carrier, as shown in fig. 7 a:
step 501 a: the base station obtains the identities of at least two carriers.
Step 502 a: the base station transmits control information of the terminal device on at least two carriers.
In this embodiment, the control information carried by at least two carriers includes a time-frequency resource location where the data information carried by one carrier is located and a channel coding mode. It is clear that the content of the control information carried by at least two carriers is the same.
Step 503 a: the terminal acquires the identities of at least two carriers.
Step 504 a: the terminal receives control information of the terminal device on at least two carriers.
Step 505 a: the terminal decodes the control information.
Step 506 a: the terminal transmits data information of the terminal device on one carrier.
Step 507 a: the base station receives data information of the terminal device on one carrier.
Step 508 a: the base station decodes the data information.
When control information is carried on one carrier and data information is carried on at least two carriers, as shown in fig. 7 b:
step 501 b: the base station transmits control information of the terminal device on one carrier.
In this embodiment, the control information carried by one carrier includes the time-frequency resource location and the channel coding mode where the data information carried by at least two carriers is located.
Step 502 b: the terminal receives control information of the terminal device on one carrier.
Step 503 b: the terminal decodes the control information.
Step 504 b: the terminal acquires the identities of at least two carriers.
Step 505 b: the terminal sends data information of the terminal device on at least two carriers.
In this embodiment, the content of the data information carried by at least two carriers is the same.
Step 506 b: the base station obtains the identities of at least two carriers.
Step 507 b: the base station receives data information of the terminal device on at least two carriers.
Step 508 b: the base station decodes the data information.
When both control information and data information are carried on at least two carriers, as shown in fig. 7 c:
step 501 c: the base station obtains the identities of at least two carriers.
Step 502 c: the base station transmits control information of the terminal device on at least two carriers.
In this embodiment, the control information carried by the at least two carriers may both include the time-frequency resource location and the channel coding mode where the data information carried by the at least two carriers is located, and may also include the time-frequency resource location and the channel coding mode where the data information carried by different carriers is located.
Step 503 c: the terminal acquires the identities of at least two carriers.
Step 504 c: the terminal receives control information of the terminal device on at least two carriers.
Step 505 c: the terminal decodes the control information.
Step 506 c: the terminal acquires the identities of at least two carriers.
Step 507 c: the terminal sends data information of the terminal device on at least two carriers.
In this embodiment, at least one of the control information carried by the at least two carriers and the data information carried by the at least two carriers has the same content.
Step 508 c: the base station obtains the identities of at least two carriers.
Step 509 c: the base station receives data information of the terminal device on at least two carriers.
Step 510 c: the base station decodes the data information.
The execution of the above steps can be performed by the terminal and the base station according to the aforementioned software modules. For example, steps 501a, 506b, 501c, 508c are performed by the base station according to the obtaining module 231b in fig. 3, steps 502a, 507b, 502c, 509c are performed by the base station according to the transmitting module 231c shown in fig. 3, steps 508b, 508c are performed by the base station according to the first combining module 231d, the first decoding module 231e, the second combining module 231f, the second decoding module 231g in fig. 3, steps 503a, 504b, 503c, 506c are performed by the base station according to the first combining module 231d, the first decoding module 231e, the second combining module 231f, the second decoding module 231g in fig. 3, steps 504a, 505b, 504c, 507c are performed by the terminal according to the transmitting module 123 in fig. 2, and steps 505a, 505c are performed by the terminal according to the obtaining module 122 in fig. 2.
Fig. 8 illustrates an apparatus for transmitting data according to an embodiment of the present invention, which may be implemented by software, hardware, or a combination of the two as all or a part of a transmitting end. The apparatus may include: an acquisition module 610 and a transmission module 620.
The obtaining module 610 is configured to obtain identifiers of at least two carriers, where frequencies of carriers in the at least two carriers are different, the at least two carriers are used to carry data of a terminal device, the data includes at least one of data information and control information, the control information includes a time-frequency resource location where the data information is located and a channel coding mode, the at least one of the data information and the control information is carried on the at least two carriers, and at least one of the data information and the control information carried on the at least two carriers has the same content. The transmission module 620 is configured to transmit data of the terminal device on at least two carriers.
In an implementation manner of this embodiment, when both the control information and the data information are carried on at least two carriers, the control information carried by the at least two carriers includes time-frequency resource locations and channel coding manners where the data information carried by the at least two carriers is located;
alternatively, the first and second electrodes may be,
when the control information and the data information are both carried on at least two carriers, the control information carried by the at least two carriers respectively comprises the time-frequency resource position and the channel coding mode of the data information carried by the carrier where the control information and the data information are respectively located;
alternatively, the first and second electrodes may be,
when the control information is carried on one carrier of the at least two carriers and the data information is carried on the at least two carriers, the control information comprises time-frequency resource positions and channel coding modes of the data information carried by the at least two carriers;
alternatively, the first and second electrodes may be,
when the control information is carried on at least two carriers and the data information is carried on one of the at least two carriers, the control information carried by the at least two carriers includes the time-frequency resource position where the data information is located and the channel coding mode.
In another implementation manner of this embodiment, the positions of the time-frequency resources where the data carried by at least two carriers are located are different.
Optionally, the location information of the time-frequency resource where the control information carried by the at least two carriers is located is carried in a physical layer message, a medium access control MAC message, or an RRC message.
In another implementation manner of this embodiment, the channel coding manners of the data information carried by at least two carriers are the same.
In another implementation manner of this embodiment, the communication system in which the at least two carriers are located includes at least two communication systems.
In yet another implementation manner of this embodiment, the obtaining module 610 may be further configured to obtain the identifiers of the at least two carriers from a message of a communication protocol layer, where the communication protocol layer is one of a physical layer, a MAC layer, a PDCP layer, an RLC layer, and an RRC layer.
In yet another implementation manner of this embodiment, the apparatus may further include a first combining module 630 and a first decoding module 640.
The first combining module 630 is configured to combine information after receiving information with the same content on at least two carriers, where the information is control information or data information. The first decoding module 640 is used for decoding the merged information.
In yet another implementation manner of this embodiment, the apparatus may further include a second decoding module 650.
The second decoding module 650 is configured to decode information received on one carrier after receiving information with the same content on at least two carriers, where the information is control information or data information; when decoding of information received on one carrier fails, information received on another carrier is decoded.
In another implementation manner of this embodiment, the transmission module 620 may be further configured to receive the information with the same content on the at least two carriers again after receiving the information with the same content on the at least two carriers, where the information is control information or data information, and if the decoding of the information received on the at least two carriers fails.
Optionally, the apparatus may further include a second merging module 660 and a third decoding module 670.
Wherein the second combining module 660 is configured to combine the information re-received on the at least two carriers and the information received on the at least two carriers before re-reception. The third decoding module 670 is used for decoding the merged information.
Fig. 9 illustrates a system for transmitting data according to an embodiment of the present invention, and referring to fig. 9, the system may include: a transmitting end 710 and a receiving end 720.
A sending end 710, configured to obtain identifiers of at least two carriers, where the at least two carriers are used to carry data of a terminal device, the data includes at least one of data information and control information, the control information includes a time-frequency resource location where the data information is located and a channel coding mode, the at least one of the data information and the control information is carried on the at least two carriers, and at least one of the data information and the control information carried on the at least two carriers has the same content; transmitting data of the terminal equipment on at least two carriers;
a receiving end 720, configured to obtain identifiers of at least two carriers; data for a terminal device is received on at least two carriers.
In practical application, the transmitting end 710 may be at least one base station, and the receiving end 720 may be a terminal; the transmitting end 710 may also be a terminal, and the receiving end 720 may be at least one base station.
It should be noted that: in the data transmission device provided in the above embodiment, only the division of the functional modules is used for illustration when data is transmitted, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus for transmitting data and the method for transmitting data provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (23)
1. A method of transmitting data, the method comprising:
acquiring identifiers of at least two carriers and indication information, wherein the frequencies of the carriers in the at least two carriers are different from each other, the at least two carriers are used for carrying data of the terminal equipment, the data comprises at least one of data information and control information, the control information comprises the time frequency resource position and the channel coding mode of the data information, at least one of the data information and the control information is carried on the at least two carriers, when one of the data information and the control information is carried on the at least two carriers, the other information is carried on one of the at least two carriers, and at least one of the data information and the control information carried on the at least two carriers is identical in content, the indication information is used for indicating that the contents in the data information and/or the control information are the same;
and transmitting the data of the terminal equipment on the at least two carriers, wherein the indication information is also used for the equipment receiving the data of the terminal equipment to carry out merging and decoding on the data information and/or the control information with the same content according to the indication information.
2. The method according to claim 1, wherein when the control information and the data information are both carried on the at least two carriers, the control information carried by the at least two carriers each include a time-frequency resource location and a channel coding mode where the data information carried by the at least two carriers is located;
alternatively, the first and second electrodes may be,
when the control information and the data information are both carried on the at least two carriers, the control information carried by the at least two carriers respectively comprises time-frequency resource positions and channel coding modes of the data information carried by the carriers where the control information and the data information are respectively located;
alternatively, the first and second electrodes may be,
when the control information is carried on one carrier of the at least two carriers and the data information is carried on the at least two carriers, the control information comprises time-frequency resource positions and channel coding modes of the data information carried by the at least two carriers;
alternatively, the first and second electrodes may be,
when the control information is carried on the at least two carriers and the data information is carried on one of the at least two carriers, the control information carried by the at least two carriers includes a time-frequency resource position where the data information is located and a channel coding mode.
3. The method according to claim 1, wherein the positions of the time-frequency resources in which the data carried by the at least two carriers are located are different.
4. The method according to claim 3, wherein the location information of the time-frequency resource where the control information carried by the at least two carriers is located is carried in a physical layer message, a Medium Access Control (MAC) layer message, or a Radio Resource Control (RRC) message.
5. The method according to any of claims 1-4, wherein the data information carried by the at least two carriers is channel coded in the same way.
6. The method according to any of claims 1-4, wherein the communication system in which the at least two carriers are located comprises at least two communication systems.
7. The method according to any of claims 1-4, wherein said obtaining the identities of at least two carriers comprises:
and acquiring the identifiers of the at least two carriers from a message of a communication protocol layer, wherein the communication protocol layer is one of a physical layer, a Medium Access Control (MAC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer and a Radio Resource Control (RRC) layer.
8. The method according to any one of claims 1-4, further comprising:
after receiving information with the same content on the at least two carriers, merging the information, wherein the information is the control information or the data information;
and decoding the combined information.
9. The method according to any one of claims 1-4, further comprising:
after receiving information with the same content on the at least two carriers, decoding the information received on one carrier, wherein the information is the control information or the data information;
decoding the information received on the other carrier when decoding of the information received on the one carrier fails.
10. The method according to any one of claims 1-4, further comprising:
after receiving the information with the same content on the at least two carriers, if the decoding of the information received on the at least two carriers fails, re-receiving the information with the same content on the at least two carriers, wherein the information is the control information or the data information.
11. The method of claim 10, further comprising:
combining the information re-received on the at least two carriers and received on the at least two carriers prior to re-reception;
and decoding the combined information.
12. An apparatus for transmitting data, the apparatus comprising:
an obtaining module, configured to obtain identifiers of at least two carriers and indication information, where frequencies of carriers in the at least two carriers are different from each other, the at least two carriers are used for carrying data of the terminal equipment, the data comprises at least one of data information and control information, the control information comprises the time frequency resource position and the channel coding mode of the data information, at least one of the data information and the control information is carried on the at least two carriers, when one of the data information and the control information is carried on the at least two carriers, the other information is carried on one of the at least two carriers, and at least one of the data information and the control information carried on the at least two carriers is identical in content, the indication information is used for indicating that the contents in the data information and/or the control information are the same;
and the transmission module is used for transmitting the data of the terminal equipment on the at least two carriers, and the indication information is also used for the equipment receiving the data of the terminal equipment to carry out merging and decoding on the data information and/or the control information with the same content according to the indication information.
13. The apparatus according to claim 12, wherein when the control information and the data information are both carried on the at least two carriers, the control information carried by the at least two carriers each include a time-frequency resource location and a channel coding mode where the data information carried by the at least two carriers is located;
alternatively, the first and second electrodes may be,
when the control information and the data information are both carried on the at least two carriers, the control information carried by the at least two carriers respectively comprises time-frequency resource positions and channel coding modes of the data information carried by the carriers where the control information and the data information are respectively located;
alternatively, the first and second electrodes may be,
when the control information is carried on one carrier of the at least two carriers and the data information is carried on the at least two carriers, the control information comprises time-frequency resource positions and channel coding modes of the data information carried by the at least two carriers;
alternatively, the first and second electrodes may be,
when the control information is carried on the at least two carriers and the data information is carried on one of the at least two carriers, the control information carried by the at least two carriers includes a time-frequency resource position where the data information is located and a channel coding mode.
14. The apparatus according to claim 12, wherein the positions of the time-frequency resources in which the data carried by the at least two carriers are located are different.
15. The apparatus according to claim 14, wherein the location information of the time-frequency resource where the control information carried by the at least two carriers is located is carried in a physical layer message, a medium access control MAC message, or a radio resource control RRC message.
16. The apparatus according to any of claims 12-15, wherein said data information carried by said at least two carriers is channel coded in the same manner.
17. The apparatus according to any of claims 12-15, wherein the communication system in which the at least two carriers are located comprises at least two communication systems.
18. The apparatus according to any one of claims 12-15, wherein the obtaining module is configured to,
and acquiring the identifiers of the at least two carriers from a message of a communication protocol layer, wherein the communication protocol layer is one of a physical layer, a Medium Access Control (MAC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer and a Radio Resource Control (RRC) layer.
19. The apparatus according to any one of claims 12-15, further comprising:
a first combining module, configured to combine information with the same content after receiving the information on the at least two carriers, where the information is the control information or the data information;
and the first decoding module is used for decoding the combined information.
20. The apparatus according to any one of claims 12-15, further comprising:
a second decoding module, configured to decode, after receiving information with the same content on the at least two carriers, the information received on one carrier, where the information is the control information or the data information; decoding the information received on the other carrier when decoding of the information received on the one carrier fails.
21. The apparatus of any one of claims 12-15, wherein the transmission module is further configured to,
after receiving the information with the same content on the at least two carriers, if the decoding of the information received on the at least two carriers fails, re-receiving the information with the same content on the at least two carriers, wherein the information is the control information or the data information.
22. The apparatus of claim 21, further comprising:
a second combining module for combining the information re-received on the at least two carriers and received on the at least two carriers prior to re-reception;
and the third decoding module is used for decoding the combined information.
23. A system for transmitting data, the system comprising:
a sending end, configured to obtain identifiers of at least two carriers and indication information, where frequencies of carriers in the at least two carriers are different from each other, the at least two carriers are used for carrying data of the terminal equipment, the data comprises at least one of data information and control information, the control information comprises the time frequency resource position and the channel coding mode of the data information, at least one of the data information and the control information is carried on the at least two carriers, when one of the data information and the control information is carried on the at least two carriers, the other information is carried on one of the at least two carriers, and at least one of the data information and the control information carried on the at least two carriers is identical in content, the indication information is used for indicating that the contents in the data information and/or the control information are the same; transmitting data of the terminal equipment on the at least two carriers;
a receiving end, configured to obtain identifiers of the at least two carriers; and receiving the data of the terminal equipment on the at least two carriers, wherein the indication information is also used for the equipment receiving the data of the terminal equipment to carry out merging and decoding on the data information and/or the control information with the same content according to the indication information.
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| WO2017113356A1 (en) | 2017-07-06 |
| CN108370559A (en) | 2018-08-03 |
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