CN108631905B - Data sending method and device, terminal equipment and network equipment - Google Patents

Data sending method and device, terminal equipment and network equipment Download PDF

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Publication number
CN108631905B
CN108631905B CN201710152696.3A CN201710152696A CN108631905B CN 108631905 B CN108631905 B CN 108631905B CN 201710152696 A CN201710152696 A CN 201710152696A CN 108631905 B CN108631905 B CN 108631905B
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data
information
resource
time
time window
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CN108631905A (en
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吕永霞
马蕊香
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2018/078979 priority patent/WO2018166472A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • 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
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1806—Go-back-N protocols
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1832—Details of sliding window management
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/187—Details of sliding window management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a data sending method, a data sending device, terminal equipment and network equipment, wherein data are sent to the network equipment through the terminal equipment; determining a time window of control information corresponding to the data; and receiving the control information corresponding to the data in a time window, wherein the time window comprises at least two time units, so that the network equipment can determine which data packet corresponding to the control information is sent in the time unit corresponding to the time window first according to the time sequence of the analyzed data packet, and scramble the control information by adopting a first scrambling code corresponding to the data to distinguish which data the control information corresponds to. And the terminal equipment receives the control information of the data in the time window and adopts the first scrambling code to obtain the control information corresponding to the descrambling data. Therefore, the network equipment can firstly send the control information of the data packet which is analyzed firstly, and the time delay of data transmission is reduced.

Description

Data sending method and device, terminal equipment and network equipment
Technical Field
The present application relates to communications technologies, and in particular, to a data sending method, an apparatus, a terminal device, and a network device.
Background
With the rapid development of wireless communication technology, wireless resources are more and more valuable.
In the prior art, in order to save wireless resources, in uplink data transmission, an uplink data transmission mode based on no scheduling instruction is adopted, that is: by omitting the steps of sending the uplink resource request of the terminal equipment and the downlink scheduling instruction of the network equipment, the signaling overhead is reduced, and the wireless resources are saved. However, the resource units used for uplink data transmission have a fixed timing relationship with the resource units used for feedback for the uplink data transmission.
By adopting the method in the prior art, the data transmission time delay is larger.
Disclosure of Invention
The application provides a data sending method, a data sending device, terminal equipment and network equipment, and aims to solve the problem of large data sending delay.
A first aspect of the present application provides a data transmission method, including:
sending data to the network equipment through the terminal equipment; determining a time window of control information corresponding to the data; and receiving the control information corresponding to the data in a time window, wherein the time window comprises at least two time units, so that the network equipment can determine which data packet corresponding to the control information is sent in the time unit corresponding to the time window first according to the time sequence of the analyzed data packet, and scramble the control information by adopting a first scrambling code corresponding to the data to distinguish which data the control information corresponds to. And the terminal equipment receives the control information of the data in the time window and adopts the first scrambling code to obtain the control information corresponding to the descrambling data. Therefore, the network equipment can firstly send the control information of the data packet which is analyzed firstly, and the time delay of data transmission is reduced.
In one possible implementation, the first scrambling code is one of a plurality of scrambling codes, each of the plurality of scrambling codes corresponding to one of a plurality of hybrid automatic repeat request, HARQ, process numbers.
In a possible implementation manner, the control information includes HARQ feedback information and/or scheduling information of the data, and the scheduling information corresponds to a HARQ process corresponding to the data.
In one possible implementation, the scheduling information includes HARQ process number information.
In one possible implementation, the data is grant-free uplink data.
In a possible implementation manner, before the terminal device sends data to the network device, the method further includes:
the terminal device receives configuration information, the configuration information includes configuration information of the time window and/or configuration information of a resource, wherein the resource includes at least one resource unit,
the terminal equipment sends data to the network equipment, and the data sending method comprises the following steps:
and the terminal equipment transmits the data to the network equipment through at least one resource unit in the resources.
In a possible implementation manner, the configuration information of the resource includes at least one of the following information:
a sequence number of the resource;
a time-frequency location of the resource;
information of resource units in the resource;
wherein the information of the resource unit is one or more of the following information:
time domain resource information;
frequency domain resource information;
spatial domain resource information;
code domain resource information;
pilot resource information.
In a possible implementation manner, the first scrambling code may be preconfigured by higher layer signaling or preset at the terminal device.
In one possible implementation, the first scrambling code may be a number of bit sequences, each corresponding to a process number; or may be a process number; and may also be generated based on a process number.
In one possible implementation, the first scrambling code is one or more of the following: part of the identity of the terminal device; all the identifiers of the terminal equipment; the serial number of the resource pool corresponding to the data; and the sequence number of the time-frequency resource corresponding to the data.
In one possible implementation, the terminal device receives the configuration information through higher layer signaling. The higher layer signaling is, for example, Radio Resource Control (RRC) signaling.
A second aspect of the present application provides a data transmission method, including: receiving data sent by terminal equipment through network equipment; and determining a time window of the control information corresponding to the data, and sending the control information corresponding to the data to the terminal equipment in the time window, wherein the time window comprises at least two time units, so that the network equipment can determine which data packet corresponding to the control information is sent first in the time unit corresponding to the time window according to the time sequence of the analyzed data packet, and scramble the control information by adopting a first scrambling code corresponding to the data to distinguish which data corresponds to the control information. And the terminal equipment receives the control information of the data in the time window and adopts the first scrambling code to obtain the control information corresponding to the descrambling data. Therefore, the network equipment can firstly send the control information of the data packet which is analyzed firstly, and the time delay of data sending is reduced.
In a possible implementation manner, before the network device receives data sent by the terminal device, the method further includes:
the network device sends configuration information to the terminal device, wherein the configuration information comprises configuration information of the time window and/or configuration information of resources, and the resources comprise at least one resource unit;
the network equipment receiving the data sent by the terminal equipment comprises the following steps:
and the network equipment receives the data sent by the terminal equipment through at least one resource unit in the resources.
In a possible implementation manner, the configuration information of the resource includes at least one of the following information:
a sequence number of the resource;
a time-frequency location of the resource;
information of resource units in the resource;
wherein the information of the resource unit is one or more of the following information:
time domain resource information;
frequency domain resource information;
spatial domain resource information;
code domain resource information;
pilot resource information.
In a possible implementation manner, the control information includes hybrid automatic repeat request HARQ feedback information and/or scheduling information of the data, and the scheduling information corresponds to a HARQ process corresponding to the data.
In one possible implementation, the scheduling information includes HARQ process number information.
A third aspect of the present application provides a data transmission apparatus, including:
a sending module, configured to send data to a network device, where the data and/or cyclic redundancy check bits of the data are scrambled with a first scrambling code;
a processing module for determining a time window of control information corresponding to the data, the time window including at least two time units;
a receiving module, configured to receive the control information corresponding to the data in the time window, where the control information is scrambled by the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data.
In one possible implementation, the first scrambling code is one of a plurality of scrambling codes, each of the plurality of scrambling codes corresponding to one of a plurality of hybrid automatic repeat request, HARQ, process numbers.
In a possible implementation manner, the control information includes HARQ feedback information and/or scheduling information of the data, and the scheduling information corresponds to a HARQ process corresponding to the data.
In one possible implementation, the scheduling information includes HARQ process number information.
In one possible implementation, the data is grant-free uplink data.
In a possible implementation manner, the receiving module is further configured to receive configuration information, where the configuration information includes configuration information of the time window and/or configuration information of a resource, where the resource includes at least one resource unit, where,
the sending module is specifically configured to send the data to the network device through at least one resource unit in the resource.
In a possible implementation manner, the configuration information of the resource includes at least one of the following information:
a sequence number of the resource;
a time-frequency location of the resource;
information of resource units in the resource;
wherein the information of the resource unit is one or more of the following information:
time domain resource information;
frequency domain resource information;
spatial domain resource information;
code domain resource information;
pilot resource information.
A fourth aspect of the present application provides a data transmission apparatus, including:
the receiving module is used for receiving data sent by terminal equipment, wherein the data and/or cyclic redundancy check bits of the data are scrambled by adopting a first scrambling code;
a processing module for determining a time window of control information corresponding to the data, the time window including at least two time units;
a sending module, configured to send control information corresponding to the data to the terminal device within the time window, where the control information is scrambled by the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data.
In a possible implementation manner, the sending module is further configured to send configuration information to the terminal device, where the configuration information includes configuration information of the time window and/or configuration information of a resource, where the resource includes at least one resource unit;
the receiving module is specifically configured to receive the data sent by the terminal device through at least one resource unit in the resource.
In a possible implementation manner, the configuration information of the resource includes at least one of the following information:
a sequence number of the resource;
a time-frequency location of the resource;
information of resource units in the resource;
wherein the information of the resource unit is one or more of the following information:
time domain resource information;
frequency domain resource information;
spatial domain resource information;
code domain resource information;
pilot resource information.
In a possible implementation manner, the control information includes HARQ feedback information and/or scheduling information of the data, and the scheduling information corresponds to a HARQ process corresponding to the data.
In one possible implementation, the scheduling information includes HARQ process number information.
In order to implement the data transmission method according to the first aspect, a fifth aspect of the present application provides a terminal device having a function of implementing the data transmission method. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.
In a possible implementation manner of the fifth aspect, the terminal device includes a plurality of functional modules or units, and is configured to implement any one of the data transmission methods in the first aspect.
In another possible implementation manner of the fifth aspect, the terminal device may include a processor, a receiver, and a transmitter (or a transceiver) in its structure. The processor is configured to support the apparatus to perform the corresponding functions of any of the data transmission methods of the first aspect. The transceiver is used to support communication between the apparatus and other network devices, and may be a corresponding radio frequency module or a baseband module, for example. The apparatus may further include a memory, coupled to the processor, that stores program instructions and data necessary for the terminal device to perform the data transmission method. Optionally, the terminal device may be a mobile phone.
In one possible design, the terminal device includes:
the transmitter is used for transmitting data to network equipment, wherein the data and/or cyclic redundancy check bits of the data are scrambled by adopting a first scrambling code;
a processor configured to determine a time window of control information corresponding to the data, the time window including at least two time units;
a receiver configured to receive the control information corresponding to the data within the time window, wherein the control information is scrambled with the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data.
A sixth aspect of the present application provides a network device having a function of implementing the data transmission method according to the second aspect, in order to implement the data transmission method according to the second aspect. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.
In a possible implementation manner of the sixth aspect, the network device includes a plurality of functional modules or units, and is configured to implement any one of the data transmission methods in the second aspect.
In another possible implementation manner of the sixth aspect, the network device may include a processor, a receiver, and a transmitter (or a transceiver) in its structure. The processor is configured to support the apparatus to perform the corresponding functions of any of the data transmission methods of the second aspect. The transceiver is used for supporting communication between the apparatus and other network devices or terminal devices, and may be a corresponding radio frequency module or a baseband module, for example. The apparatus may also include a memory, coupled to the processor, that stores program instructions and data necessary for the network device to perform the data transmission method described above. Optionally, the network device may be a base station.
In one possible design, the network device includes:
the receiver is used for receiving data sent by terminal equipment, wherein the data and/or cyclic redundancy check bits of the data are scrambled by adopting a first scrambling code;
a processor configured to determine a time window of control information corresponding to the data, the time window including at least two time units;
a transmitter, configured to transmit control information corresponding to the data to the terminal device within the time window, where the control information is scrambled by the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data.
In a seventh aspect, the present application provides a computer storage medium for storing computer software instructions for the terminal device, which contains a program designed to execute the first aspect.
In an eighth aspect, the present application provides a computer storage medium for storing computer software instructions for the network device, which includes a program designed to execute the second aspect.
In a ninth aspect, the present application provides a computer program product comprising instructions which, when executed by a computer, cause the computer to perform the functions performed by the terminal device in the above method.
In a tenth aspect, the present application provides a computer program product comprising instructions which, when executed by a computer, cause the computer to perform the functions performed by the network device in the above-mentioned method.
Drawings
Fig. 1 is a schematic view of an application scenario of the present application;
fig. 2 is a diagram illustrating uplink data transmission in the prior art;
fig. 3 is a schematic flowchart of an embodiment of a data transmission method provided in the present application;
FIG. 4 is a schematic diagram of data transmission provided herein;
fig. 5 is a schematic structural diagram of an embodiment of an uplink data transmission apparatus provided in the present application;
fig. 6 is a schematic structural diagram of another embodiment of an uplink data transmission apparatus provided in the present application;
fig. 7 is a schematic structural diagram of a terminal device provided in the present application;
fig. 8 is a schematic structural diagram of a network device provided in the present application.
Detailed Description
Fig. 1 is a schematic view of an application scenario of the present application, where the scenario includes a terminal device and a network device, where the network device may be a base station.
In the existing uplink data transmission based on the scheduling-free instruction, a resource unit for sending uplink data and a resource unit for receiving feedback information of the uplink data have a fixed time sequence relationship, as shown in fig. 2, fig. 2 is a schematic diagram of uplink data sending in the prior art; assuming that the fixed timing relationship is 4 time units apart, if the time unit corresponding to the resource unit transmitting the uplink data is 0, the time unit corresponding to the resource unit receiving the feedback information of the uplink data is 4. If the time unit corresponding to the resource unit for sending the uplink data is 1, the time unit corresponding to the resource unit for receiving the feedback information of the uplink data is 5, and so on. The receiving time sequence of the feedback information of the uplink data is consistent with the time sequence of sending the uplink data. However, since the size of the data packet transmitted per time unit varies, for example: the data packet sent by the time unit 0 is much larger than the data packet 2 sent by the time unit 1, and the time for the network device to analyze the data packet 2 is earlier than the time for analyzing the data packet 1, but because the feedback information of the received data packet 1 is in the time unit 4 and the feedback information of the received data packet 2 is in the time unit 5, the feedback information of the data packet 2 can be sent only after the feedback information of the data packet 1 is sent first, and therefore, the time delay for sending the uplink data is large.
In order to reduce the time delay of data sending, a time window is configured for the terminal equipment through the network equipment, and a time sequence relation between the time unit of the time window and the time unit of sending data is obtained, wherein the time window comprises at least two time units, the network equipment can determine which data packet corresponding to the data packet is sent in the time unit of the time window first according to the time sequence of the analyzed data packet, and the control information is scrambled by adopting a first scrambling code so as to distinguish the data corresponding to the control information. And the terminal equipment descrambles the information received by each time unit in the time window by monitoring each time unit of the time window and adopting the first scrambling code corresponding to the data so as to acquire the control information corresponding to the data packet. Therefore, the network equipment can firstly send the control information of the data which is analyzed firstly, and the time delay of sending the uplink data is reduced. In addition, since the time window for the terminal device to receive the control information includes at least two time units, the terminal device may receive the control information corresponding to multiple uplink transmissions in the time window, and the terminal device descrambles the information received in each time unit in the time window by using the first scrambling code to determine which uplink data packet the control information corresponds to.
The technical solution of the present application will be described in detail below with specific examples.
Fig. 3 is a schematic flow chart of an embodiment of a data transmission method provided in the present application, as shown in fig. 3:
s301: the network device sends the configuration information to the terminal device.
Alternatively, the network device may send the configuration information to the terminal device through higher layer signaling.
The higher layer signaling is, for example, Radio Resource Control (RRC) signaling.
The configuration information comprises configuration information of a time window and/or configuration information of a resource, wherein the resource comprises at least one resource unit. The terminal equipment transmits data to the network equipment through at least one resource unit in the resources.
The resource allocation information comprises at least one of the following information:
the sequence number of the resource.
The time-frequency location of the resource.
Information of resource units in the resource. Wherein, the information of the resource unit is one or more of the following information: time domain resource information; frequency domain resource information; spatial domain resource information; code domain resource information; pilot resource information.
The configuration information of the time window includes the size and/or time interval of the time window. For example: the size of the time window is 3 time units, and the time interval is 4 time units, as shown in fig. 4, fig. 4 is a data transmission diagram provided in the present application, and if the time unit corresponding to the resource unit for transmitting data is 0, the time units corresponding to the time window are 4, 5, and 6, and the control information of the data transmitted in the data unit 0 may be in any one of the data unit 4, the data unit 5, or the data unit 6. If the data unit for transmitting data is 1, and the time window corresponds to data units 5, 6 and 7, the control information of the data transmitted by data unit 1 may be in any one of data unit 5, data unit 6 or data unit 7, and so on.
Optionally, the size of the time window and/or the time interval may also be specified by the protocol.
Optionally, the configuration information may further include the number of the maximum HARQ processes configured for the terminal device, where the number of the maximum HARQ processes configured for the terminal device by the network device is not greater than the number of the maximum HARQ processes that can be supported by the terminal device.
S302: the terminal device transmits data to the network device.
The network device configures a scheduling-free uplink data transmission mode for the terminal device, and configures resources for the terminal device for scheduling-free of the terminal device, where the configuration information may be configured by the network device through a high-level signaling.
Optionally, whether the terminal device adopts the uplink data transmission mode based on the exempt scheduling may be determined according to the service type of the terminal device. For example: for the arrival of an Ultra-high-reliability low-Latency Communication (URLLC) service data packet, a user uses an uplink data transmission mode based on non-scheduling, and an Enhanced Mobile Broadband (eMBB) service data packet, which is insensitive to ordinary Latency, arrives, and the user uses an uplink data transmission mode based on scheduling.
The terminal equipment selects at least one resource unit from the resources configured by the network equipment according to the serial number of the resource, the time-frequency position of the resource and/or the information of the resource units in the resource, and sends data to the network equipment in the selected resource unit.
Optionally, different resources may correspond to different service types, and more specifically, different resources may correspond to different requirements of service performance.
The terminal equipment scrambles data by adopting a first scrambling code; or the terminal equipment scrambles the cyclic redundancy check bits of the data by adopting the first scrambling code so as to distinguish which time unit the data corresponds to and which terminal equipment.
Wherein the first scrambling code is one of a plurality of scrambling codes, each of the plurality of scrambling codes corresponding to one of the plurality of HARQ process numbers;
optionally, the first scrambling code may be preconfigured by higher layer signaling or preset at the terminal device.
The first scrambling code may be a number of bit sequences, each sequence corresponding to a process number; or may be a process number; and may also be generated based on a process number.
Specifically, the first scrambling code is one or more of the following: part of the identity of the terminal device; all the identifiers of the terminal equipment; the serial number of the resource pool corresponding to the data; and the sequence number of the time-frequency resource corresponding to the data.
One possible implementation: the first scrambling code may be a serial number of a time-frequency resource corresponding to the data, and different corresponding data may be distinguished by descrambling through the serial number of the time-frequency resource.
Another possible implementation: the resource units used by the terminal device to send different data are from different resources, so the first scrambling code can be the serial number of the resource corresponding to the data, and the corresponding different data can be distinguished by descrambling through the serial number of the resource.
Another possible implementation manner is as follows: the first scrambling code may be combined with part of the identifier of the terminal device or all of the identifier of the terminal device on the basis of the above two types.
The identifier of the terminal device is a Network Temporary identifier (RNTI) or an International Mobile Subscriber Identity (IMSI).
After receiving the data, the network equipment descrambles the data by adopting a first scrambling code; or descrambling the cyclic redundancy check bits of the data by adopting the first scrambling code. The first scrambling code used for descrambling by the network device is the same as the first scrambling code used for scrambling by the terminal device, and is not described herein again.
S303: the network device determines a time window of control information corresponding to the data.
The time window includes at least two time units.
Referring to fig. 4, if packet 1 is transmitted in data unit 0, the time units corresponding to the time window are 4, 5 and 6, and the control information of packet 1 may be in any one of data unit 4, data unit 5 or data unit 6. If packet 2 is sent in time unit 1, the time windows correspond to time units 5, 6, and 7, and the control information for packet 2 may be in any of time unit 5, time unit 6, or time unit 7, and so on.
S304: and the network equipment sends control information corresponding to the data to the terminal equipment in the time window.
Wherein the control information is scrambled with a first scrambling code, the first scrambling code used to scramble the control information indicating that the control information corresponds to data.
The control information includes Hybrid Automatic Repeat reQuest (HARQ) feedback information of the data; and/or the control information comprises scheduling information of the data.
The scheduling information of the data comprises the HARQ process number information distributed by the network equipment to the terminal equipment.
Optionally, the HARQ process number information included in the scheduling information may be the same as or different from the HARQ process number corresponding to the first scrambling code, and the network device may schedule retransmission or newly transmitted data for the terminal device based on the HARQ process number.
Optionally, the scheduling information may be further used to indicate whether the data transmission is correct or not, and if the scheduling information indicates that the data transmission fails, the scheduling information may be used to indicate retransmission of the data, and the scheduling information further includes one or more of the following information: time frequency resources occupied by retransmission data, redundancy version, modulation coding mode and power control; if the data transmission is successful, the scheduling information may be used to indicate a new transmission of data by the terminal device, and the scheduling information further includes one or more of the following information: time frequency resources occupied by newly transmitted data, redundancy version, modulation coding mode and power control.
Referring to fig. 4, if the network device has analyzed the data packet 2 first and then analyzed the data packet 1, it may be determined that the control information of the data packet 2 is transmitted in the time unit 5, and the control information of the data packet 1 is transmitted in the time unit 6, so that sending the control information of the data packet 2 does not need to be performed after the data packet 1 is analyzed.
S305: the terminal device determines a time window of control information corresponding to the data.
One possible implementation: the terminal equipment determines the time window of the time window control information according to the size of the time window and the time interval between the time unit for sending data and the time window, wherein the time window comprises at least two time units.
The step is similar to the step of determining, by the network device, the time window of the control information of the corresponding data in S303, and is described in detail in S303, and is not described herein again.
S306: and the terminal equipment receives the control information corresponding to the data in the time window.
And the terminal equipment descrambles the received data in the time window by adopting the first scrambling code so as to acquire the required control information.
The first scrambling code used for descrambling by the terminal device is the same as the first scrambling code used for scrambling by the network device, and is not described herein again.
The control information includes HARQ feedback information of data, and the feedback information includes, for example: ACK acknowledged or NACK denied.
With reference to fig. 4, assuming that the feedback information analyzed by the terminal device for data packet 1 is ACK, the buffer of the HARQ process corresponding to time unit 0 related to data packet 1 is cleared, and the HARQ process is released.
If the user equipment analyzes that the feedback information of the data packet 1 is NACK, and the transmission has reached the maximum retransmission times or exceeded the maximum delay required by the data packet transmission, the buffer of the HARQ process corresponding to the time unit 0 associated with the data packet 1 is emptied, and the HARQ process is released.
Assuming that the transmission of the data packet 1 has reached the maximum retransmission times and the terminal device does not receive the control information from the network device within the time window, the buffer of the HARQ process corresponding to the time unit 0 associated with the data packet 1 is emptied, and the HARQ process is released.
Optionally, the control information may include scheduling information of the data. And the terminal equipment receives scheduling information of the network equipment, wherein the scheduling information indicates one-time new data transmission, and then the terminal equipment empties the cache of the HARQ process corresponding to the time unit 0 related to the data packet 1 and releases the HARQ process.
In this embodiment, a time window and a time sequence relationship between a time unit of the time window and a time unit for sending data are configured for the terminal device by the network device, where the time window includes at least two time units, and the network device may determine, according to a time sequence of an analyzed data packet, which data packet corresponds to the control information to be sent first in the time unit of the time window, and scramble the control information by using the first scrambling code to distinguish data corresponding to the control information. And the terminal equipment descrambles the control information of each time unit by monitoring each time unit of the time window and adopting the first scrambling code corresponding to the data to acquire the control information corresponding to the data packet. Therefore, the network equipment can send the control information of the data which is analyzed first, and the time delay of the uplink data transmission is reduced.
Fig. 5 is a schematic structural diagram of an embodiment of an uplink data transmission apparatus provided in the present application, where the apparatus of this embodiment is deployed in a terminal device, and includes a sending module 501, a processing module 502, and a receiving module 503, where the sending module 501 is configured to send data to a network device, and the data and/or cyclic redundancy check bits of the data are scrambled by using a first scrambling code; the processing module 502 is configured to determine a time window of control information corresponding to the data, where the time window includes at least two time units; the receiving module 503 is configured to receive the control information corresponding to the data in the time window, where the control information is scrambled by the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data.
Optionally, the first scrambling code is one of a plurality of scrambling codes, each of the plurality of scrambling codes corresponding to one of a plurality of hybrid automatic repeat request, HARQ, process numbers.
Optionally, the control information includes HARQ feedback information and/or scheduling information of the data, and the scheduling information corresponds to a HARQ process corresponding to the data.
Optionally, the scheduling information includes HARQ process number information.
Optionally, the data is grant-free uplink data.
Optionally, the receiving module 503 is further configured to receive configuration information, where the configuration information includes configuration information of the time window and/or configuration information of a resource, where the resource includes at least one resource unit,
the sending module is specifically configured to send the data to the network device through at least one resource unit in the resource.
Optionally, the configuration information of the resource includes at least one of the following information:
a sequence number of the resource;
a time-frequency location of the resource;
information of resource units in the resource;
wherein the information of the resource unit is one or more of the following information:
time domain resource information;
frequency domain resource information;
spatial domain resource information;
code domain resource information;
pilot resource information.
The apparatus in the embodiment shown in fig. 5 may be correspondingly used to execute the actions executed by the terminal device in the technical solution of the embodiment of the method shown in fig. 3, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 6 is a schematic structural diagram of another embodiment of an uplink data transmission apparatus provided in the present application, where the apparatus of this embodiment is deployed in a network device, and the apparatus includes a receiving module 601, a processing module 602, and a sending module 603, where the receiving module 601 is configured to receive data sent by a terminal device, and the data and/or cyclic redundancy check bits of the data are scrambled by using a first scrambling code; the processing module 602 is configured to determine a time window of control information corresponding to the data, where the time window includes at least two time units; the sending module 603 is configured to send control information corresponding to the data to the terminal device within the time window, where the control information is scrambled by the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data.
Optionally, the sending module 603 is further configured to send configuration information to the terminal device, where the configuration information includes configuration information of the time window and/or configuration information of a resource, where the resource includes at least one resource unit;
the receiving module 601 is specifically configured to receive the data sent by the terminal device through at least one resource unit in the resource.
Optionally, the configuration information of the resource includes at least one of the following information:
a sequence number of the resource;
a time-frequency location of the resource;
information of resource units in the resource;
wherein the information of the resource unit is one or more of the following information:
time domain resource information;
frequency domain resource information;
spatial domain resource information;
code domain resource information;
pilot resource information.
Optionally, the control information includes HARQ feedback information and/or scheduling information of the data, and the scheduling information corresponds to a HARQ process corresponding to the data.
Optionally, the scheduling information includes HARQ process number information.
The apparatus in the embodiment shown in fig. 6 may be correspondingly used to execute the actions executed by the network device in the technical solution of the embodiment shown in fig. 3, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 7 is a schematic structural diagram of a terminal device provided in the present application, where the terminal device includes a transmitter 701, a processor 702, and a receiver 703, where the transmitter 701 is configured to transmit data to a network device, where the data and/or cyclic redundancy check bits of the data are scrambled with a first scrambling code; the processor 702 is configured to determine a time window of control information corresponding to the data, the time window including at least two time units; the receiver 703 is configured to receive the control information corresponding to the data within the time window, where the control information is scrambled with the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data.
The apparatus in the embodiment shown in fig. 7 may be correspondingly used to execute the actions executed by the terminal device in the technical solution of the embodiment of the method shown in fig. 3, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 8 is a schematic structural diagram of a network device provided in the present application, where the network device includes a receiver 801, a processor 802, and a transmitter 803, where the receiver 801 is configured to receive data transmitted by a terminal device, where the data and/or cyclic redundancy check bits of the data are scrambled with a first scrambling code; the processor 802 is configured to determine a time window of control information corresponding to the data, where the time window includes at least two time units; the transmitter 803 is configured to transmit control information corresponding to the data to the terminal device within the time window, where the control information is scrambled with the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data.
The apparatus in the embodiment shown in fig. 8 may be correspondingly used to execute the actions executed by the network device in the technical solution of the embodiment shown in fig. 3, and the implementation principle and the technical effect are similar, which are not described herein again.

Claims (26)

1. A data transmission method, comprising:
the method comprises the steps that terminal equipment sends data to network equipment, wherein the data and/or cyclic redundancy check bits of the data are scrambled by adopting a first scrambling code;
the terminal equipment determines a time window of control information corresponding to the data and determines a time sequence relation between a time unit of the time window and a time unit for sending the data, wherein the time window comprises at least two time units;
the terminal equipment receives the control information corresponding to the data in the time window, wherein the control information is scrambled by the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data;
before the terminal device sends data to the network device, the method further includes:
and the terminal equipment receives configuration information, wherein the configuration information comprises the configuration information of the time window, and the configuration information of the time window comprises the size and the time interval of the time window.
2. The method of claim 1, wherein the first scrambling code is one of a plurality of scrambling codes, each of the plurality of scrambling codes corresponding to one of a plurality of hybrid automatic repeat request (HARQ) process numbers.
3. The method according to claim 1 or 2, wherein the control information comprises HARQ feedback information and/or scheduling information of the data, and the scheduling information corresponds to a HARQ process corresponding to the data.
4. The method of claim 3, wherein the scheduling information comprises HARQ process number information.
5. The method according to claim 1 or 2, wherein the data is unlicensed upstream data.
6. The method according to claim 1 or 2,
the configuration information further comprises configuration information of a resource, wherein the resource comprises at least one resource unit, wherein,
the terminal equipment sends data to the network equipment, and the data sending method comprises the following steps:
and the terminal equipment transmits the data to the network equipment through at least one resource unit in the resources.
7. The method of claim 6, wherein the configuration information of the resource comprises at least one of the following information:
a sequence number of the resource;
a time-frequency location of the resource;
information of resource units in the resource;
wherein the information of the resource unit is one or more of the following information:
time domain resource information;
frequency domain resource information;
spatial domain resource information;
code domain resource information;
pilot resource information.
8. A data transmission method, comprising:
the method comprises the steps that network equipment receives data sent by terminal equipment, wherein the data and/or cyclic redundancy check bits of the data are scrambled by adopting a first scrambling code;
the network equipment determines a time window of control information corresponding to the data and determines a time sequence relation between a time unit of the time window and a time unit for sending the data, wherein the time window comprises at least two time units;
the network equipment sends control information corresponding to the data to the terminal equipment in the time window, wherein the control information is scrambled by the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data;
before the network device receives the data sent by the terminal device, the method further includes:
and the network equipment sends configuration information to the terminal equipment, wherein the configuration information comprises the configuration information of the time window, and the configuration information of the time window comprises the size and the time interval of the time window.
9. The method of claim 8,
the configuration information further comprises configuration information of a resource, wherein the resource comprises at least one resource unit;
the network equipment receiving the data sent by the terminal equipment comprises the following steps:
and the network equipment receives the data sent by the terminal equipment through at least one resource unit in the resources.
10. The method of claim 9, wherein the configuration information of the resource includes at least one of the following information:
a sequence number of the resource;
a time-frequency location of the resource;
information of resource units in the resource;
wherein the information of the resource unit is one or more of the following information:
time domain resource information;
frequency domain resource information;
spatial domain resource information;
code domain resource information;
pilot resource information.
11. The method according to any of claims 8 to 10, wherein the control information comprises hybrid automatic repeat request, HARQ, feedback information and/or scheduling information of the data, and the scheduling information corresponds to a HARQ process to which the data corresponds.
12. The method of claim 11, wherein the scheduling information comprises HARQ process number information.
13. A data transmission apparatus, comprising:
a sending module, configured to send data to a network device, where the data and/or cyclic redundancy check bits of the data are scrambled with a first scrambling code;
the processing module is used for determining a time window of control information corresponding to the data and determining a time sequence relation between a time unit of the time window and a time unit for sending the data, wherein the time window comprises at least two time units;
a receiving module, configured to receive the control information corresponding to the data in the time window, where the control information is scrambled by the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data;
the receiving module is further configured to receive configuration information, where the configuration information includes configuration information of the time window, and the configuration information of the time window includes a size and a time interval of the time window.
14. The apparatus of claim 13, wherein the first scrambling code is one of a plurality of scrambling codes, each of the plurality of scrambling codes corresponding to one of a plurality of hybrid automatic repeat request (HARQ) process numbers.
15. The apparatus according to claim 13 or 14, wherein the control information comprises HARQ feedback information and/or scheduling information of the data, and the scheduling information corresponds to a HARQ process corresponding to the data.
16. The apparatus of claim 15, wherein the scheduling information comprises HARQ process number information.
17. The apparatus according to claim 13 or 14, wherein the data is unlicensed upstream data.
18. The apparatus of claim 13 or 14, wherein the receiving module is further configured to receive configuration information of a resource, wherein the resource comprises at least one resource unit, wherein,
the sending module is specifically configured to send the data to the network device through at least one resource unit in the resource.
19. The apparatus of claim 18, wherein the configuration information of the resource comprises at least one of the following information:
a sequence number of the resource;
a time-frequency location of the resource;
information of resource units in the resource;
wherein the information of the resource unit is one or more of the following information:
time domain resource information;
frequency domain resource information;
spatial domain resource information;
code domain resource information;
pilot resource information.
20. A data transmission apparatus, comprising:
the receiving module is used for receiving data sent by terminal equipment, wherein the data and/or cyclic redundancy check bits of the data are scrambled by adopting a first scrambling code;
the processing module is used for determining a time window of control information corresponding to the data and determining a time sequence relation between a time unit of the time window and a time unit for sending the data, wherein the time window comprises at least two time units;
a sending module, configured to send control information corresponding to the data to the terminal device within the time window, where the control information is scrambled by the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data;
the sending module is further configured to send configuration information, where the configuration information includes configuration information of the time window, and the configuration information of the time window includes a size and a time interval of the time window.
21. The apparatus of claim 20, wherein the sending module is further configured to send configuration information of a resource to the terminal device, where the resource includes at least one resource unit;
the receiving module is specifically configured to receive the data sent by the terminal device through at least one resource unit in the resource.
22. The apparatus of claim 21, wherein the configuration information of the resource comprises at least one of the following information:
a sequence number of the resource;
a time-frequency location of the resource;
information of resource units in the resource;
wherein the information of the resource unit is one or more of the following information:
time domain resource information;
frequency domain resource information;
spatial domain resource information;
code domain resource information;
pilot resource information.
23. The apparatus according to any of claims 20 to 22, wherein the control information includes HARQ feedback information and/or scheduling information of the data, and the scheduling information corresponds to a HARQ process to which the data corresponds.
24. The apparatus of claim 23, wherein the scheduling information comprises HARQ process number information.
25. A terminal device, comprising:
the transmitter is used for transmitting data to network equipment, wherein the data and/or cyclic redundancy check bits of the data are scrambled by adopting a first scrambling code;
the processor is used for determining a time window of control information corresponding to the data and determining a time sequence relation between a time unit of the time window and a time unit for sending the data, wherein the time window comprises at least two time units;
a receiver configured to receive the control information corresponding to the data within the time window, wherein the control information is scrambled with the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data;
the receiver is further configured to receive configuration information, where the configuration information includes configuration information of the time window, and the configuration information of the time window includes a size and a time interval of the time window.
26. A network device, comprising:
the receiver is used for receiving data sent by terminal equipment, wherein the data and/or cyclic redundancy check bits of the data are scrambled by adopting a first scrambling code;
the processor is used for determining a time window of control information corresponding to the data and determining a time sequence relation between a time unit of the time window and a time unit for sending the data, wherein the time window comprises at least two time units;
a transmitter, configured to transmit control information corresponding to the data to the terminal device within the time window, where the control information is scrambled by the first scrambling code, and the first scrambling code used for scrambling the control information indicates that the control information corresponds to the data;
the transmitter is further configured to transmit configuration information, where the configuration information includes configuration information of the time window, and the configuration information of the time window includes a size and a time interval of the time window.
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US7523209B1 (en) * 2002-09-04 2009-04-21 Nvidia Corporation Protocol and interface for source-synchronous digital link
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US20140269538A1 (en) * 2013-03-15 2014-09-18 Alcatel-Lucent Canada, Inc. Methods And Systems For Transmitting Data Frames From a Cloud-Based System
US9451639B2 (en) * 2013-07-10 2016-09-20 Samsung Electronics Co., Ltd. Method and apparatus for coverage enhancement for a random access process
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CN104981022B (en) * 2014-04-04 2020-07-10 北京三星通信技术研究有限公司 Data transmission method, base station and terminal
CN105187153B (en) * 2014-06-06 2021-07-09 中兴通讯股份有限公司 Information feedback method, information transmission method, feedback device and information transmission device
CN105592557A (en) * 2014-11-17 2016-05-18 中兴通讯股份有限公司 SPS control method, apparatus and base station
ES2759750T3 (en) * 2015-06-30 2020-05-12 Huawei Tech Co Ltd Method and apparatus for uplink data transmission
CN106470381A (en) * 2015-08-14 2017-03-01 中兴通讯股份有限公司 The processing method and processing device of Stochastic accessing
US10243642B2 (en) * 2016-04-22 2019-03-26 Lg Electronics Inc. Method and base station for receiving system information, and method and user equipment for transmitting system information

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