CN107317653B - Data transmission method and device - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 27
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- 238000004891 communication Methods 0.000 claims description 29
- 238000005516 engineering process Methods 0.000 abstract description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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Abstract
The invention provides a data transmission method and device. Wherein, the method comprises the following steps: acquiring a frame structure type of a data frame for transmitting data to be transmitted; and sending indication information for indicating the frame structure type to the base station through Radio Resource Control (RRC) signaling or a physical layer control channel. The invention solves the problem that the terminal can not transmit the frame structure type information of the data frame to the base station in the related technology, and realizes that the terminal transmits the frame structure type information of the data frame to the base station.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a data transmission method and apparatus.
Background
Mobile communication network technology has evolved from the third generation mobile communication system (3G) to the fourth generation mobile communication system (4G), presenting more and more applications and different traffic types as network rates have increased. Meanwhile, new requirements are also put on the mobile communication network system in order to adapt to more new upcoming service types. Therefore, research on a fifth generation mobile communication system (5G) mobile communication system is being conducted in various countries around the world. According to the current research progress of 5G demand, the main service types in the future include enhanced Mobile Broadband service (embb), a large amount of low-power Machine-Type-Communication (mtc), and low-latency and high-reliability mtc (mtc).
For 5G communication systems, a single technical framework needs to be adopted to solve different types of traffic transmission. For a 5G base station, terminals transmitting different service types exist in a network, and different frame structure types are adopted for data transmission for the terminals transmitting different service types. At present, the terminal cannot transmit the frame structure type information of the data frame to the base station, which results in that the base station cannot accurately demodulate the received data frame
Aiming at the problem that the terminal in the related art cannot transmit the frame structure type information of the data frame to the base station, no effective solution is provided at present.
Disclosure of Invention
The invention provides a data transmission method and a data transmission device, which at least solve the problem that a terminal in the related art cannot transmit frame structure type information of a data frame to a base station.
According to an aspect of the present invention, there is provided a data transmission method, including: acquiring a frame structure type of a data frame for transmitting data to be transmitted; and sending indication information for indicating the frame structure type to the base station through Radio Resource Control (RRC) signaling or a physical layer Control channel.
Optionally, the obtaining a frame structure type of a data frame used for transmitting data to be transmitted includes: and acquiring the frame structure type according to the service type of the data to be transmitted, wherein different service types correspond to different frame structure types.
Optionally, the obtaining the frame structure type according to the service type of the data to be transmitted includes: when the service type of the data to be transmitted is the enhanced mobile bandwidth service, acquiring that the frame structure type of the data frame is a first frame structure type; when the service type of the data to be transmitted is a low-power machine type communication service mMTC, acquiring that the frame structure type of the data frame is a second frame structure type; and when the service type of the data to be transmitted is a machine type communication service uMTC with low time delay and high reliability, acquiring the frame structure type of the data frame as a third frame structure type.
Optionally, the sending, to the base station, indication information for indicating the frame structure type includes one of: sending first indication information to the base station, wherein the first indication information is used for indicating that the frame structure type of the data frame for transmitting the data to be transmitted comprises one frame structure type or multiple frame structure types; sending second indication information to the base station, wherein the second indication information is used for indicating the frame structure type matched with the data frame; and sending third indication information to the base station, wherein the third indication information is used for indicating the base station to analyze the data frame by using a preset frame structure type matched with the data frame.
Optionally, the sending, by the RRC signaling, indication information for indicating the frame structure type to the base station includes: transmitting indication information for indicating the frame structure type through a non-access stratum message; or, sending indication information for indicating the frame structure type through a radio link setup request message.
Optionally, the sending, to the base station through the physical layer control channel, indication information for indicating the frame structure type includes: and sending a scheduling request to the base station through an uplink physical layer control channel, wherein the scheduling request carries indication information for indicating the frame structure type.
Optionally, the data frames corresponding to different frame structure types have different subcarrier intervals, and/or the data frames corresponding to different frame structure types have different OFDM symbol lengths.
According to another aspect of the present invention, there is also provided a data transmission apparatus, including: the device comprises an acquisition module, a transmission module and a transmission module, wherein the acquisition module is used for acquiring the frame structure type of a data frame for transmitting data to be transmitted; a sending module, configured to send, to the base station through a radio resource control RRC signaling or a physical layer control channel, indication information used for indicating the frame structure type.
Optionally, the obtaining module is configured to: and acquiring the frame structure type according to the service type of the data to be transmitted, wherein different service types correspond to different frame structure types.
Optionally, the sending module includes one of: a first sending unit, configured to send first indication information to the base station, where the first indication information is used to indicate that the frame structure type of the data frame for transmitting the to-be-transmitted data includes one frame structure type or multiple frame structure types; a second sending unit, configured to send second indication information to the base station, where the second indication information is used to indicate the frame structure type matched with the data frame; a third sending unit, configured to send third indication information to the base station, where the third indication information is used to instruct the base station to parse the data frame using a preset frame structure type matched with the data frame.
According to the invention, the frame structure type of the data frame used for transmitting the data to be transmitted is acquired; the method includes sending, to a base station, indication information for indicating a frame structure type through an RRC signaling or a physical layer control channel, that is, a terminal may obtain the frame structure type of a data frame used for transmitting data to be transmitted to the base station, and may send, to the base station, the indication information for indicating the frame structure type through the RRC signaling or the physical layer control channel. The terminal informs the base station of the frame structure type used when the data to be transmitted is transmitted to the base station in the form of the indication information through the RRC signaling or the physical layer control channel, so that the problem that the terminal cannot transmit the frame structure type information of the data frame to the base station in the related art is solved, and the terminal can transmit the frame structure type information of the data frame to the base station. Furthermore, the terminal indicates the information of the frame structure type of the data frame of the data to be transmitted to the base station, so that the base station can accurately analyze the data frame according to different frame structure types, and the success rate of analyzing the data frame by the base station is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of an alternative method of data transmission according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a frame structure type according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of indication information of a data transmission method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of indication information of a data transmission method according to an embodiment of the present invention;
FIG. 5 is a block diagram of an alternative data transmission arrangement according to an embodiment of the present invention;
fig. 6 is a block diagram of another alternative data transmission apparatus according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Example 1
In this embodiment, a data transmission method is provided, and fig. 1 is a flowchart of an optional data transmission method according to an embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:
step S102, obtaining a frame structure type of a data frame for transmitting data to be transmitted;
step S104, sending indication information for indicating the frame structure type to the base station through a Radio Resource Control (RRC) signaling or a physical layer Control channel.
Alternatively, the above data transmission method may be applied, but not limited, to a scenario in which indication information of a data frame type is transmitted to a base station. For example: in the 5G mobile communication network, a terminal transmits a scene of indication information of a data frame type to a base station.
Optionally, the data transmission method may be applied to a terminal, but is not limited to: the terminal can be but not limited to a mobile phone, a tablet computer, a notebook computer, a portable router, an intelligent wearable device and the like.
Through the steps, the terminal can acquire the frame structure type of the data frame for transmitting the data to be transmitted to the base station, and can send the indication information for indicating the frame structure type to the base station through RRC signaling or a physical layer control channel. The terminal informs the base station of the frame structure type used when the data to be transmitted is transmitted to the base station in the form of the indication information through RRC signaling or a physical layer control channel, so that the problem that the terminal cannot transmit the frame structure type information of the data frame to the base station in the related art is solved, and the purpose that the terminal transmits the frame structure type information of the data frame to the base station is achieved. Furthermore, the terminal indicates the information of the frame structure type of the data frame of the data to be transmitted to the base station, so that the base station can accurately analyze the data frame according to different frame structure types, and the success rate of analyzing the data frame by the base station is improved.
In this embodiment, the sending of the indication information through RRC signaling may include, but is not limited to, sending the indication information through a non-access stratum message or a radio link setup request message. The indication information transmitted through the physical layer control channel may be, but is not limited to, the indication information transmitted through a scheduling request transmitted in an uplink physical layer control channel.
In the present embodiment, in the above step S102, the obtaining of the frame structure type may refer to, but is not limited to, a capability possessed by the terminal itself, and the terminal transmits the capability to the base station by the method provided in step S104. For example: and reading the frame structure type which can be used for transmitting the data frame of the data to be transmitted from the background by the terminal.
In this embodiment, the manner of obtaining the frame structure type may be, but is not limited to, obtaining the frame structure type of the data to be transmitted according to the service type of the data to be transmitted, and may also be, but is not limited to, obtaining the frame structure type of the data to be transmitted according to the transmission capability of the terminal.
Optionally, in the step S102, the frame structure type may be obtained according to a service type of the data to be transmitted, where different frame structure types may be obtained correspondingly to different service types. For example: when the service type of the data to be transmitted is the enhanced mobile bandwidth service, the frame structure type of the data frame can be acquired as a first frame structure type; when the service type of the data to be transmitted is a low-power machine type communication service mMTC, acquiring that the frame structure type of the data frame is a second frame structure type; and when the service type of the data to be transmitted is a machine type communication service uMTC with low time delay and high reliability, acquiring the frame structure type of the data frame as a third frame structure type. Further, the data frames corresponding to different frame structure types have different subcarrier intervals, and/or the data frames corresponding to different frame structure types have different OFDM symbol lengths.
In an optional example, an example of different frame structure types corresponding to different service types is given, in this example, frame structures of different types are set to have different subcarrier intervals and different OFDM symbol lengths, fig. 2 is a frame structure type diagram according to an embodiment of the present invention, and as shown in fig. 2, a data frame for transmitting eMBB type data uses a first frame structure type, a data frame for transmitting mtc type data uses a second frame structure type, and a data frame for transmitting mtc type data uses a third frame structure type. In this embodiment, the subcarrier spacing of the third frame structure type may be, but is not limited to be, larger than the subcarrier spacing of the first frame structure type, and the subcarrier spacing of the first frame structure type may be, but is not limited to be, larger than the subcarrier spacing of the second frame structure type. Further, optionally, in this embodiment, the OFDM symbol length of the third frame structure type may be, but is not limited to, smaller than the OFDM symbol length of the first frame structure type, and the OFDM symbol length of the first frame structure type may be, but is not limited to, smaller than the OFDM symbol length of the second frame structure type.
Different types of frame structures can be constructed by changing the subcarrier interval and/or the OFDM symbol length, and the information of the frame structure type is transmitted to a base station through RRC signaling or a physical layer control channel, so that the base station can know the frame structure of a data frame, and the data frame is analyzed.
Optionally, in the step S104, a manner of sending the indication information to the base station may include, but is not limited to, one of the following:
first, first indication information may be sent to the base station, where the first indication information may be, but is not limited to, a frame structure type used for indicating a frame structure type of a data frame for transmitting data to be transmitted includes one frame structure type or multiple frame structure types.
For example: the first indication information may carry information for indicating the terminal to send a data frame of a corresponding service type through a specific frame structure type. The first indication information may also indicate that the terminal is to transmit the data frame using a plurality of frame structure types. When the RRC signaling includes a non-access stratum message, the non-access stratum message may include first indication information carrying information related to a frame structure type used for data transmission, and the first indication information may be related to only one frame structure type or may be related to a plurality of frame structure types.
In another optional example, when the RRC signaling is a radio link setup request message, the radio link setup request message may include first indication information carrying information related to a frame structure type used for data transmission, and the first indication information may be related to only one frame structure type or may also be related to multiple frame structure types. When a terminal sends information related to a frame structure type for data transmission to a base station through a physical layer control channel, a scheduling request sent by the terminal through an uplink physical layer control channel includes first indication information carrying the information related to the frame structure type for data transmission. The first indication information may relate to only one frame structure type or to a plurality of frame structure types.
Fig. 3 is a schematic structural diagram of indication information of a data transmission method according to an embodiment of the present invention, and as shown in fig. 3, a frame structure type used by a terminal for data transmission may be represented by information of 2 bits in the first indication information. For example: "00" indicates that a first frame structure type for an enhanced mobile bandwidth service type is adopted, "01" indicates that a second frame structure type for a low power machine type communication service is adopted, "10" indicates that a third frame structure type for a low latency high reliability machine type communication service is adopted, and "11" indicates that two or three of the above three frame structure types can be adopted. It should be noted that the 4 values of the 2bit information may respectively represent the corresponding relationship between any one of the 4 service types and the frame structure type.
In a second mode, second indication information may be sent to the base station, where the second indication information may be used to indicate a frame structure type matched with the data frame.
Third, third indication information may be sent to the base station, where the third indication information may be used to instruct the base station to parse the data frame using a preset frame structure type matched with the data frame.
For example: the second indication information may be used to indicate a data frame in which the data to be transmitted is to use a certain frame structure type, and the third indication information may be used to indicate a data frame in which the data to be transmitted by the base station is to use a default preset frame structure type.
In an optional example, when the RRC signaling includes a non-access stratum message, the third indication message may be, but is not limited to, a non-access stratum message that does not carry information related to a frame structure type used for data transmission, and in this case, the non-access stratum message is used to indicate that the terminal is to transmit data of the first service type using the default first frame structure type. The third indication message may also be, but is not limited to, a non-access stratum message carrying bit information for indicating that the terminal is to transmit the data frame with the preset frame structure type. The second indication message may be, but is not limited to, a non-access stratum message including information related to a frame structure type used for data transmission, and different values of the second indication message may be, but is not limited to, respectively indicate that the terminal is to transmit data of the second service type using the second frame structure type, or that the terminal is to transmit data of the third service type using the third frame structure type. Wherein the first traffic type may be, but is not limited to, enhanced mobile bandwidth traffic, and the second traffic type and the third traffic type may be, but is not limited to, different machine type communication traffic.
In another optional example, when the RRC signaling includes a radio link setup request message, the third indication message may be, but is not limited to, a radio link setup request message that does not carry information related to a frame structure type used for data transmission, and in this case, the non-access stratum message is used to indicate that the terminal is to transmit data of the first traffic type using the default first frame structure type. The third indication message may also be, but is not limited to, a radio link request message carrying bit information for indicating that the terminal is to transmit a data frame with a preset frame structure type. The second indication message may be, but is not limited to, a radio link request message including information related to a frame structure type used for data transmission, and different values of the second indication message may be, but is not limited to, respectively indicate that the terminal is to transmit data of the second traffic type using the second frame structure type, or that the terminal is to transmit data of the third traffic type using the third frame structure type. Wherein the first traffic type may be, but is not limited to, enhanced mobile bandwidth traffic, and the second traffic type and the third traffic type may be, but is not limited to, different machine type communication traffic.
In another optional example, when the manner of sending the indication information through the physical layer control channel includes sending the indication information through a scheduling request in an uplink physical layer control channel, the third indication message may be, but is not limited to, a scheduling request that does not carry information related to a frame structure type used for data transmission, where the scheduling request is used to indicate that the terminal is to transmit data of the first service type using a default first frame structure type. The third indication message may also be, but is not limited to, a scheduling request carrying bit information for indicating that the terminal is to transmit a data frame with a preset frame structure type. The second indication message may be, but is not limited to, a scheduling request including information related to a frame structure type used for data transmission, and different values of the second indication message may respectively indicate that the terminal is to transmit data of the second service type using the second frame structure type, or that the terminal is to transmit data of the third service type using the third frame structure type. Wherein the first traffic type may be, but is not limited to, enhanced mobile bandwidth traffic, and the second traffic type and the third traffic type may be, but is not limited to, different machine type communication traffic.
Fig. 4 is a schematic structural diagram of indication information of a data transmission method according to an embodiment of the present invention, and as shown in fig. 4, 1bit may be used to indicate a frame structure type of a data frame used by a terminal for data transmission, and the 1bit information is optional. The third indication information may be a radio link setup request message or a non-access stratum message that does not carry the 1-bit information field or a scheduling request in an uplink physical layer control channel, and at this time, the third indication information may be used to indicate that the first frame structure type for the enhanced mobile bandwidth service type is adopted. The second indication information may be a radio link setup request message or a non-access stratum message or a scheduling request in an uplink physical layer control channel when carrying the 1-bit information field, and if the field takes a value of 0, it indicates that the second frame structure type for the low power machine type communication service is adopted for data transmission, and the field takes a value of 1, indicates that the third frame structure type for the low delay high reliability machine type communication service is adopted for data transmission. Alternatively, if the field takes a value of 0, it indicates that data is transmitted using the third frame structure type for the low-latency high-reliability machine type communication service, and the field takes a value of 1, which indicates that data is transmitted using the second frame structure type for the low-power machine type communication service.
Optionally, in step S104, the manner of sending the indication information for indicating the frame structure type to the base station through RRC signaling may be one of the following: the indication information for indicating the frame structure type is transmitted through a non-access stratum message, and the indication information for indicating the frame structure type is transmitted through a radio link setup request message. The manner of sending the indication information for indicating the frame structure type to the base station through the physical layer control channel may be sending a scheduling request to the base station through an uplink physical layer control channel, where the scheduling request carries the indication information for indicating the frame structure type.
In a mobile communication network, different network performance index requirements exist when different service types transmit data, and in order to meet the different network performance index requirements of different service types in a single technical framework, a 5G system introduces different frame structures in a physical layer, and meanwhile, different frame structure parameters keep a certain proportional relation to form different frame structure types. In order to avoid access in various frame structure type areas, the system can define specific common resources for the initial access work of different types of services, including cell synchronization, receiving of broadcast information, random access process and the like. The data transmission method provided by the embodiment can enable the terminal to indicate the frame structure type of the transmission data to the base station, so that the base station can analyze the received data frame according to the indication information of the terminal, the information of the frame structure type of the data frame transmitted from the terminal to the base station is realized, and further, the success rate of analyzing the data frame by the base station is improved.
Example 2
In this embodiment, a data transmission device is further provided, and the data transmission device is used to implement the foregoing embodiments and preferred embodiments, which have already been described and are not described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 5 is a block diagram of an alternative data transmission apparatus according to an embodiment of the present invention, as shown in fig. 5, the apparatus includes:
1) an obtaining module 52, configured to obtain a frame structure type of a data frame used for transmitting data to be transmitted;
2) a sending module 54, coupled to the obtaining module 52, configured to send, to the base station, indication information for indicating a frame structure type through radio resource control RRC signaling or a physical layer control channel.
Alternatively, the data transmission apparatus may be applied to, but not limited to, a scenario of transmitting the indication information of the data frame type to the base station. For example: in the 5G mobile communication network, a terminal transmits a scene of indication information of a data frame type to a base station.
Alternatively, the data transmission apparatus may be applied to a terminal, but not limited to: the terminal can be but not limited to a mobile phone, a tablet computer, a notebook computer, a portable router, an intelligent wearable device and the like.
By the above apparatus, the obtaining module 52 may obtain a frame structure type of a data frame used for transmitting data to be transmitted to the base station, and the sending module 54 may send indication information used for indicating the frame structure type to the base station through an RRC signaling or a physical layer control channel. The terminal informs the base station of the frame structure type used when the data to be transmitted is transmitted to the base station in the form of the indication information through RRC signaling or a physical layer control channel, so that the problem that the terminal cannot transmit the frame structure type information of the data frame to the base station in the related art is solved, and the purpose that the terminal transmits the frame structure type information of the data frame to the base station is achieved. Furthermore, the terminal indicates the information of the frame structure type of the data frame of the data to be transmitted to the base station, so that the base station can accurately analyze the data frame according to different frame structure types, and the success rate of analyzing the data frame is improved.
In this embodiment, the sending of the indication information through RRC signaling may include, but is not limited to, sending the indication information through a non-access stratum message or a radio link setup request message. The indication information transmitted through the physical layer control channel may be, but is not limited to, the indication information transmitted through a scheduling request transmitted in an uplink physical layer control channel.
In this embodiment, the manner of obtaining the frame structure type may be, but is not limited to, obtaining the frame structure type of the data to be transmitted according to the service type of the data to be transmitted, and may also be, but is not limited to, obtaining the frame structure type of the data to be transmitted according to the transmission capability of the terminal.
Optionally, the obtaining module 52 may be, but is not limited to, for: and acquiring the frame structure type according to the service type of the data to be transmitted, wherein different service types correspond to different frame structure types. For example: when the service type of the data to be transmitted is the enhanced mobile bandwidth service, the frame structure type of the data frame can be acquired as a first frame structure type; when the service type of the data to be transmitted is a low-power machine type communication service mMTC, acquiring that the frame structure type of the data frame is a second frame structure type; and when the service type of the data to be transmitted is a machine type communication service uMTC with low time delay and high reliability, acquiring the frame structure type of the data frame as a third frame structure type. Further, the data frames corresponding to different frame structure types have different subcarrier intervals, and/or the data frames corresponding to different frame structure types have different OFDM symbol lengths.
In an optional example, an example of different frame structure types corresponding to different service types is given, in this example, frame structures of different types are set to have different subcarrier intervals and different OFDM symbol lengths, as shown in fig. 2, a data frame for transmitting eMBB type data uses a first frame structure type, a data frame for transmitting mtc type data uses a second frame structure type, and a data frame for transmitting mtc type data uses a third frame structure type. In this embodiment, the subcarrier spacing of the third frame structure type may be, but is not limited to be, larger than the subcarrier spacing of the first frame structure type, and the subcarrier spacing of the first frame structure type may be, but is not limited to be, larger than the subcarrier spacing of the second frame structure type. Further, optionally, in this embodiment, the OFDM symbol length of the third frame structure type may be, but is not limited to, smaller than the OFDM symbol length of the first frame structure type, and the OFDM symbol length of the first frame structure type may be, but is not limited to, smaller than the OFDM symbol length of the second frame structure type.
Different types of frame structures can be constructed by changing the subcarrier interval and/or the OFDM symbol length, and the information of the frame structure type is transmitted to a base station through RRC signaling or a physical layer control channel, so that the base station can know the frame structure of a data frame, and the data frame is analyzed.
Fig. 6 is a block diagram of another optional data transmission apparatus according to an embodiment of the present invention, and as shown in fig. 6, optionally, the sending module 54 includes one of the following:
1) a first sending unit 62, configured to send first indication information to a base station, where the first indication information is used to indicate that a frame structure type of a data frame for transmitting data to be transmitted includes one frame structure type or multiple frame structure types;
2) a second sending unit 64, configured to send second indication information to the base station, where the second indication information is used to indicate a frame structure type matched with the data frame;
3) a third sending unit 66, configured to send third indication information to the base station, where the third indication information is used to instruct the base station to parse the data frame by using the preset frame structure type matching the data frame.
Optionally, the manner of sending the indication information to the base station by the sending module 54 may include, but is not limited to, one of the following:
first, the first sending unit 62 may send first indication information to the base station, where the first indication information may include, but is not limited to, a frame structure type used for indicating a frame structure type of a data frame for transmitting data to be transmitted, and the frame structure type includes one frame structure type or multiple frame structure types.
For example: the first indication information may carry information for indicating the terminal to send a data frame of a corresponding service type through a certain specific frame structure type. The first indication information may also indicate that the terminal is to transmit the data frame using a plurality of frame structure types. When the RRC signaling includes a non-access stratum message, the non-access stratum message may include first indication information carrying information related to a frame structure type used for data transmission, and the first indication information may be related to only a certain frame structure type or may be related to multiple frame structure types.
In another optional example, when the RRC signaling is a radio link setup request message, the radio link setup request message may include first indication information carrying information related to a frame structure type used for data transmission, and the first indication information may be related to only one frame structure type or may also be related to multiple frame structure types. When a terminal sends information related to a frame structure type for data transmission to a base station through a physical layer control channel, a scheduling request sent by the terminal through an uplink physical layer control channel includes first indication information carrying the information related to the frame structure type for data transmission. The first indication information may relate to only one frame structure type or to a plurality of frame structure types.
As shown in fig. 3, the frame structure type used by the terminal for data transmission can be indicated by 2-bit information in the first indication information. For example: "00" indicates that a first frame structure type for an enhanced mobile bandwidth traffic type is employed, "01" indicates that a second frame structure type for a low power machine type communication traffic is employed, "10" indicates that a third frame structure type for a low latency high reliability machine type communication traffic is employed, and "11" indicates that two or three of the above three frame structure types may be employed. It should be noted that the 4 values of the 2bit information may respectively represent the corresponding relationship between any one of the 4 service types and the frame structure type.
Second, the second sending unit 64 may send second indication information to the base station, where the second indication information may be used to indicate a frame structure type matched with the data frame.
Third, the third sending unit 66 may send third indication information to the base station, where the third indication information may be used to instruct the base station to parse the data frame by using the preset frame structure type matching the data frame.
For example: the second indication information may be used to indicate a data frame in which the data to be transmitted is to use a certain frame structure type, and the third indication information may be used to indicate a data frame in which the data to be transmitted by the base station is to use a default preset frame structure type.
In an optional example, when the RRC signaling includes a non-access stratum message, the third indication message may be, but is not limited to, a non-access stratum message that does not carry information related to a frame structure type used for data transmission, and in this case, the non-access stratum message is used to indicate that the terminal is to transmit data of the first service type using the default first frame structure type. The third indication message may also be, but is not limited to, a non-access stratum message carrying bit information for indicating that the terminal is to transmit the data frame with the preset frame structure type. The second indication message may be, but is not limited to, a non-access stratum message including information related to a frame structure type used for data transmission, and different values of the second indication message may be, but is not limited to, respectively indicate that the terminal is to transmit data of the second service type using the second frame structure type, or that the terminal is to transmit data of the third service type using the third frame structure type. The first traffic type may be, but is not limited to, an enhanced mobile bandwidth service, and the second traffic type and the third traffic type may refer to different machine type communication services.
In another optional example, when the RRC signaling includes a radio link setup request message, the third indication message may be, but is not limited to, a radio link setup request message that does not carry information related to a frame structure type used for data transmission, and in this case, the non-access stratum message is used to indicate that the terminal is to transmit data of the first traffic type using the default first frame structure type. The third indication message may also be, but is not limited to, a radio link request message carrying bit information for indicating that the terminal is to transmit a data frame using a preset frame structure type. The second indication message may be, but is not limited to, a radio link request message including information related to a frame structure type used for data transmission, and different values of the second indication message may respectively indicate that the terminal is to transmit data of the second traffic type using the second frame structure type, or that the terminal is to transmit data of the third traffic type using the third frame structure type. The first traffic type may be, but is not limited to, an enhanced mobile bandwidth service, and the second traffic type and the third traffic type may refer to different machine type communication services.
In another optional example, when the manner of sending the indication information through the physical layer control channel includes sending the indication information through a scheduling request in an uplink physical layer control channel, the third indication message may be, but is not limited to, a scheduling request that does not carry information related to a frame structure type used for data transmission, where the scheduling request is used to indicate that the terminal is to transmit data of the first service type using a default first frame structure type. The third indication message may also be, but is not limited to, a scheduling request carrying bit information for indicating that the terminal is to transmit a data frame with a preset frame structure type. The second indication message may be, but is not limited to, a scheduling request including information related to a frame structure type used for data transmission, and different values of the second indication message may be, but are not limited to, respectively indicate that the terminal is to transmit data of the second traffic type using the second frame structure type, or that the terminal is to transmit data of the third traffic type using the third frame structure type. Wherein the first traffic type may be, but is not limited to, enhanced mobile bandwidth traffic, and the second traffic type and the third traffic type may be, but is not limited to, different machine type communication traffic.
As shown in fig. 4, the frame structure type of the data frame used by the terminal for data transmission may be represented by 1bit, and the 1bit information is optional. The third indication information may be a radio link setup request message or a non-access stratum message that does not carry the 1-bit information field or a scheduling request in an uplink physical layer control channel, and at this time, the third indication information may be used to indicate that the first frame structure type for the enhanced mobile bandwidth service type is adopted. The second indication information may be a radio link setup request message or a non-access stratum message or a scheduling request in an uplink physical layer control channel when carrying the 1-bit information field, and if the field takes a value of 0, it indicates that the second frame structure type for the low power machine type communication service is adopted for data transmission, and the field takes a value of 1, indicates that the third frame structure type for the low delay high reliability machine type communication service is adopted for data transmission. Alternatively, if the field takes a value of 0, it indicates that data is transmitted using the third frame structure type for the low-latency high-reliability machine type communication service, and the field takes a value of 1, which indicates that data is transmitted using the second frame structure type for the low-power machine type communication service.
Optionally, the sending module 54 may be, but is not limited to, for: the method comprises the steps of sending indication information used for indicating the frame structure type through a non-access stratum message, or sending the indication information used for indicating the frame structure type through a wireless link establishment request message, or sending a scheduling request carrying the indication information used for indicating the frame structure type to a base station through an uplink physical layer control channel.
In a mobile communication network, different network performance index requirements exist when different service types transmit data, and in order to meet the different network performance index requirements of different service types in a single technical framework, a 5G system introduces different frame structures in a physical layer, and meanwhile, different frame structure parameters keep a certain proportional relation to form different frame structure types. In order to avoid access in various frame structure type areas, the system can define specific common resources for the initial access work of different types of services, including cell synchronization, receiving of broadcast information, random access process and the like. Different frame structure types can be adopted for data transmission aiming at different service type terminals, and by the data transmission device provided by the embodiment, the terminal can indicate the frame structure type of the transmission data acquired by the acquisition module 52 to the base station through the transmission module 54, so that the base station can analyze the received data frame according to the indication information of the terminal, the information of the frame structure type of the data frame transmitted from the terminal to the base station is realized, and further, the success rate of analyzing the data frame by the base station is also improved.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in a plurality of processors.
Example 3
The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:
s1, obtaining the frame structure type of the data frame used for transmitting the data to be transmitted;
s2, sending indication information for indicating the frame structure type to the base station through a radio resource control RRC signaling or a physical layer control channel.
Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and various media capable of storing program codes.
Optionally, for a specific example in this embodiment, reference may be made to the examples described in the above embodiment and optional implementation, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A method of data transmission, comprising:
acquiring a frame structure type of a data frame for transmitting data to be transmitted;
sending indication information for indicating the frame structure type to a base station through a Radio Resource Control (RRC) signaling or a physical layer control channel;
wherein the sending the indication information for indicating the frame structure type to the base station through the physical layer control channel comprises:
sending a scheduling request to the base station through an uplink physical layer control channel, wherein the scheduling request carries the indication information for indicating the frame structure type;
and the data frames corresponding to different frame structure types have different subcarrier intervals, and/or the data frames corresponding to different frame structure types have different OFDM symbol lengths.
2. The method of claim 1, wherein obtaining the frame structure type for transmitting the data frame of the data to be transmitted comprises:
and acquiring the frame structure type according to the service type of the data to be transmitted, wherein different service types correspond to different frame structure types.
3. The method of claim 2, wherein obtaining the frame structure type according to the traffic type of the data to be transmitted comprises:
when the service type of the data to be transmitted is the enhanced mobile bandwidth service, acquiring that the frame structure type of the data frame is a first frame structure type;
when the service type of the data to be transmitted is a low-power machine type communication service mMTC, acquiring that the frame structure type of the data frame is a second frame structure type;
and when the service type of the data to be transmitted is a machine type communication service uMTC with low time delay and high reliability, acquiring the frame structure type of the data frame as a third frame structure type.
4. The method of claim 1, wherein sending the indication information indicating the frame structure type to the base station comprises one of:
sending first indication information to the base station, wherein the first indication information is used for indicating that the frame structure type of the data frame for transmitting the data to be transmitted comprises one frame structure type or multiple frame structure types;
sending second indication information to the base station, wherein the second indication information is used for indicating the frame structure type matched with the data frame;
and sending third indication information to the base station, wherein the third indication information is used for indicating the base station to analyze the data frame by using a preset frame structure type matched with the data frame.
5. The method according to any of claims 1 to 4, wherein sending the indication information for indicating the frame structure type to the base station through the RRC signaling comprises:
transmitting indication information for indicating the frame structure type through a non-access stratum message; or,
transmitting indication information indicating the frame structure type through a radio link setup request message.
6. A data transmission apparatus, comprising:
the device comprises an acquisition module, a transmission module and a transmission module, wherein the acquisition module is used for acquiring the frame structure type of a data frame for transmitting data to be transmitted;
a sending module, configured to send, to a base station, indication information used for indicating the frame structure type through a radio resource control RRC signaling or a physical layer control channel;
the data transmission device is further configured to send a scheduling request to the base station through an uplink physical layer control channel, where the scheduling request carries the indication information for indicating the frame structure type;
the data frames corresponding to different frame structure types have different subcarrier intervals, and/or the data frames corresponding to different frame structure types have different OFDM symbol lengths.
7. The apparatus of claim 6, wherein the obtaining module is configured to:
and acquiring the frame structure type according to the service type of the data to be transmitted, wherein different service types correspond to different frame structure types.
8. The apparatus of claim 6, wherein the sending module comprises one of:
a first sending unit, configured to send first indication information to the base station, where the first indication information is used to indicate that the frame structure type of the data frame for transmitting the data to be transmitted includes one frame structure type or multiple frame structure types;
a second sending unit, configured to send second indication information to the base station, where the second indication information is used to indicate the frame structure type matched with the data frame;
a third sending unit, configured to send third indication information to the base station, where the third indication information is used to instruct the base station to parse the data frame using a preset frame structure type matched with the data frame.
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| WO2019157728A1 (en) * | 2018-02-14 | 2019-08-22 | Oppo广东移动通信有限公司 | Data transmission method and device, and computer storage medium |
| CN111432475B (en) * | 2019-01-09 | 2023-05-12 | 中国移动通信有限公司研究院 | Method for carrying uplink low-delay service and network equipment |
| CN116248225A (en) * | 2021-12-08 | 2023-06-09 | 华为技术有限公司 | Method and device for transmitting data |
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