CN111162870B - Method, device, storage medium, terminal and network equipment for controlling data transmission - Google Patents
Method, device, storage medium, terminal and network equipment for controlling data transmission Download PDFInfo
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- CN111162870B CN111162870B CN201911253355.0A CN201911253355A CN111162870B CN 111162870 B CN111162870 B CN 111162870B CN 201911253355 A CN201911253355 A CN 201911253355A CN 111162870 B CN111162870 B CN 111162870B
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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
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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
- H04L1/12—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
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present disclosure relates to a method, an apparatus, a storage medium, a terminal and a network device for controlling data transmission, wherein the method is applied to a receiving end device, and comprises: receiving a first transmission delay time and a second transmission delay time sent by network equipment; acquiring third transmission delay time between the sending end equipment and the receiving end equipment according to the first transmission delay time and the second transmission delay time; and sending data to the sending terminal equipment according to the third transmission delay time. Therefore, when the sending end equipment and the receiving end equipment directly transmit data, the network equipment only needs to send the first transmission delay time and the second transmission delay time to the receiving end equipment without sending the first transmission delay time and the second transmission delay time to the sending end equipment, so that link resources can be saved, and signaling transmission can be reduced.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, a storage medium, a terminal, and a network device for controlling data transmission.
Background
In a wireless communication system, signal transmission needs to pass through an air interface path, so that a certain delay exists at the moment of reaching a receiving end. In order to achieve the consistency of timing relationship between a transmitting end and a receiving end so that uplink transmissions from different UEs (User Equipment) in the same cell do not interfere with each other, the transmitting end needs to have a certain timing advance.
In the related art, the UE sends an uplink preamble according to downlink receiving Timing, an eNB (Evolved Node B, evolved base station) calculates a single-way transmission delay between the eNB and the UE according to the uplink preamble, and calculates a TA (Timing Advance) value according to the single-way transmission delay, where the TA value is 2 times of the single-way transmission delay, and the eNB sends the TA value to the UE through a downlink by using signaling. And then, the UE sends the uplink subframe in advance of the TA value, so that the eNB can be ensured to basically align the uplink timing received from each UE. However, this method requires the eNB to send the TA value to each UE by signaling, occupies link resources, and is costly in signaling transmission when the UE data transmission is small or the UE communicates directly with each other.
Disclosure of Invention
In order to solve the above problems, the present disclosure provides a method, an apparatus, a storage medium, a terminal, and a network device for controlling data transmission.
In a first aspect, the present disclosure provides a method for controlling data transmission, which is applied to a receiving end device, and the method includes: receiving a first transmission delay time and a second transmission delay time sent by a network device, wherein the first transmission delay time is a transmission delay time between a sending end device and the network device, and the second transmission delay time is a transmission delay time between a receiving end device and the network device; acquiring third transmission delay time between the sending end equipment and the receiving end equipment according to the first transmission delay time and the second transmission delay time; and sending data to the sending terminal equipment according to the third transmission delay time.
Optionally, the obtaining, according to the first transmission delay time and the second transmission delay time, a third transmission delay time between the sending end device and the receiving end device includes: receiving a narrowband auxiliary synchronization signal NSSS sent by the sending end equipment according to the first transmission delay time according to the second transmission delay time; acquiring a fourth transmission delay time of receiving the NSSS; and acquiring the third transmission delay time according to the first transmission delay time, the second transmission delay time and the fourth transmission delay time.
Optionally, the obtaining the third transmission delay time according to the first transmission delay time, the second transmission delay time, and the fourth transmission delay time includes: acquiring a difference value between the first transmission delay time and the second transmission delay time; if the first transmission delay time is less than or equal to the second transmission delay time, calculating to obtain a third transmission delay time according to the sum of the fourth transmission delay time and the difference; and if the first transmission delay time is greater than the second transmission delay time, calculating to obtain the third transmission delay time according to the difference between the fourth transmission delay time and the difference.
In a second aspect, the present disclosure provides a method for controlling data transmission, applied to a network device, the method including: acquiring first transmission delay time and second transmission delay time, wherein the first transmission delay time is the transmission delay time between sending end equipment and the network equipment, and the second transmission delay time is the transmission delay time between receiving end equipment and the network equipment; and sending the first transmission delay time and the second transmission delay time to the receiving end equipment, so that the receiving end equipment can obtain third transmission delay time between the sending end equipment and the receiving end equipment according to the first transmission delay time and the second transmission delay time, and send data to the sending end equipment according to the third transmission delay time.
In a third aspect, the present disclosure provides an apparatus for controlling data transmission, where the apparatus is applied to a receiving end device, and the apparatus includes: a receiving module, configured to receive a first transmission delay time and a second transmission delay time that are sent by a network device, where the first transmission delay time is a transmission delay time between a sending end device and the network device, and the second transmission delay time is a transmission delay time between a receiving end device and the network device; an obtaining module, configured to obtain a third transmission delay time between the sending end device and the receiving end device according to the first transmission delay time and the second transmission delay time; and a sending module, configured to send data to the sending end device according to the third transmission delay time.
Optionally, the obtaining module is specifically configured to: receiving the NSSS sent by the sending end equipment according to the first transmission delay time according to the second transmission delay time; acquiring a fourth transmission delay time of receiving the NSSS; and acquiring the third transmission delay time according to the first transmission delay time, the second transmission delay time and the fourth transmission delay time.
Optionally, the obtaining module is further configured to: acquiring a difference value between the first transmission delay time and the second transmission delay time; if the first transmission delay time is greater than or equal to the second transmission delay time, calculating to obtain a third transmission delay time according to the sum of the fourth transmission delay time and the difference; and if the first transmission delay time is smaller than the second transmission delay time, calculating to obtain the third transmission delay time according to the difference value between the fourth transmission delay time and the difference value.
In a fourth aspect, the present disclosure provides an apparatus for controlling data transmission, where the apparatus is applied to a network device, and the apparatus includes: an obtaining module, configured to obtain a first transmission delay time and a second transmission delay time, where the first transmission delay time is a transmission delay time between a sending end device and the network device, and the second transmission delay time is a transmission delay time between a receiving end device and the network device; a sending module, configured to send the first transmission delay time and the second transmission delay time to the receiving end device, so that the receiving end device obtains a third transmission delay time between the sending end device and the receiving end device according to the first transmission delay time and the second transmission delay time, and sends data to the sending end device according to the third transmission delay time.
In a fifth aspect, the present disclosure provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of the first aspect of the present disclosure; alternatively, the program implements the steps of the method according to the second aspect of the present disclosure when executed by a processor.
In a sixth aspect, the present disclosure provides a terminal comprising: a memory having a computer program stored thereon; a processor for executing the computer program in the memory to implement the steps of the method of the first aspect of the disclosure.
In a seventh aspect, the present disclosure provides a network device, including: a memory having a computer program stored thereon; a processor for executing the computer program in the memory to implement the steps of the method of the second aspect of the disclosure.
According to the technical scheme, the receiving end equipment receives first transmission delay time and second transmission delay time sent by the network equipment, wherein the first transmission delay time is the transmission delay time between the sending end equipment and the network equipment, and the second transmission delay time is the transmission delay time between the receiving end equipment and the network equipment; acquiring third transmission delay time between the sending end equipment and the receiving end equipment according to the first transmission delay time and the second transmission delay time; and sending data to the sending end device according to the third transmission delay time, that is, after receiving the first transmission delay time and the second transmission delay time sent by the network device, the receiving end device may obtain the third transmission delay time between the sending end device and the receiving end device, and send data to the sending end device according to the third transmission delay time.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure, but do not constitute a limitation of the disclosure. In the drawings:
fig. 1 is a flowchart of a method for controlling data transmission according to an embodiment of the present disclosure;
fig. 2 is a flowchart of another method for controlling data transmission according to an embodiment of the disclosure;
fig. 3 is a flowchart of a third method for controlling data transmission according to an embodiment of the disclosure;
fig. 4 is a diagram of an application scenario for controlling data transmission according to an embodiment of the present disclosure;
fig. 5 is a timing flow diagram for controlling data transmission according to an embodiment of the disclosure;
FIG. 6 is a flow chart of another timing sequence for controlling data transmission provided by embodiments of the present disclosure;
fig. 7 is a schematic structural diagram of an apparatus for controlling data transmission according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of another apparatus for controlling data transmission according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of a terminal provided in an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
First, an application scenario of the present disclosure is explained, and the present disclosure may be applied to a scenario in which a UE and a UE directly communicate in a wireless communication system, where signal transmission needs to pass through an air interface path, and therefore, a time when the signal reaches a receiving end has a certain delay. The wireless communication system adopts a specified frame structure for transmission, for uplink transmission, a plurality of receiving ends have different transmission time delays due to different paths during uplink transmission, and in order to realize consistent timing relationship between the sending end and the receiving ends so as to ensure that uplink transmissions from different UEs in the same cell do not interfere with each other, the sending end needs to have a certain timing advance. In the related art, the UE sends an uplink preamble at a downlink receiving timing, the eNB calculates a single-pass transmission delay between the eNB and the UE according to the uplink preamble, and calculates a TA value according to the single-pass transmission delay, where the TA value is 2 times the single-pass transmission delay, and the eNB sends the TA value to the UE through a downlink using signaling. And then, the UE sends the uplink subframe in advance of the TA value, so that the eNB can be ensured to basically align the uplink timing received from each UE. However, this method requires the eNB to send the TA value to each UE through signaling, which occupies link resources, and when data transmission of the UE is very small or the UE directly communicates with each other, signaling transmission cost is high. In addition, under the conditions that the setting is not carried out in advance and the TA is not measured, the uplink synchronization can be realized by using longer or larger cyclic prefix time to compensate the difference of transmission delay, so that the uplink timings received by the eNB from the UE are basically aligned.
In order to solve the above problems, the present disclosure provides a method, an apparatus, a storage medium, a terminal and a network device for controlling data transmission, where a receiving end device may obtain a third transmission delay time between the receiving end device and a sending end device after receiving a first transmission delay time and a second transmission delay time sent by the network device, and send data to the sending end device according to the third transmission delay time, so that when the sending end device and the receiving end device transmit data, the network device only needs to send the first transmission delay time and the second transmission delay time to the receiving end device, and does not need to send the first transmission delay time and the second transmission delay time to the sending end device, thereby saving link resources and reducing signaling transmission.
The following detailed description is provided for a specific embodiment of the present disclosure with reference to the accompanying drawings, and the technical solutions provided by the following embodiments of the present disclosure may be applied to a wireless communication network, for example: NB-IoT (Narrow Band Internet of Things).
Network equipment and UEs may be included in a wireless communication network, where the network equipment may be equipment that communicates with user equipment or other communication stations, such as relay stations. The network devices may provide communication coverage for a particular physical area, for example, the network devices may specifically be enbs in an NB-IoT or may also be other access network devices providing access services in a wireless communication network.
Fig. 1 is a flowchart of a method for controlling data transmission according to an embodiment of the present disclosure, and as shown in fig. 1, the method is applied to a receiving end device and includes:
s101, receiving a first transmission delay time and a second transmission delay time sent by network equipment.
The first transmission delay time is a transmission delay time between the sending end device and the network device, and the second transmission delay time is a transmission delay time between the receiving end device and the network device.
It should be noted that, when the sending end device needs to transmit data to the receiving end device, a connection request may be sent to the network device, and after the network device receives the connection request sent by the sending end device, the network device may obtain transmission delay time, i.e., first transmission delay time, between the sending end device and the network device according to a random access preamble (preamble code, preamble sequence) sent by the sending end device; in addition, after receiving the connection request sent by the sending end device, the network device may send a Paging message over the air interface according to the connection request information of the sending end device to page the receiving end device, after receiving the Paging, the receiving end device may send a preamble sequence to the eNB, and the network device may obtain the second transmission delay time according to the same method as the method for obtaining the first transmission delay time.
In this step, after the receiving end device sends the access request to the network device, the first transmission delay time and the second transmission delay time sent by the network device may be received.
S102, acquiring third transmission delay time between the sending end equipment and the receiving end equipment according to the first transmission delay time and the second transmission delay time.
In this step, after the sending end device and the receiving end device enter the connection state, the sending end device may switch to the designated frequency point on the designated subframe to perform data transmission, and meanwhile, the receiving end device may switch to the designated frequency point to receive data.
In a possible implementation manner, the receiving end device may receive, according to the second transmission delay time, an NSSS (Narrowband Secondary Synchronization Signal) sent by the sending end device according to the first transmission delay time, obtain a fourth transmission delay time when the NSSS is received, and obtain a third transmission delay time according to the first transmission delay time, the second transmission delay time, and the fourth transmission delay time.
The receiving end device may obtain a difference between the first transmission delay time and the second transmission delay time; if the first transmission delay time is less than or equal to the second transmission delay time, calculating to obtain a third transmission delay time according to the sum of the fourth transmission delay time and the difference; and if the first transmission delay time is greater than the second transmission delay time, calculating to obtain a third transmission delay time according to the difference between the fourth transmission delay time and the difference.
It should be noted that the receiving end device may also receive a difference between the first transmission delay time and the second transmission delay time sent by the network device, and obtain the third transmission delay time according to the difference.
And S103, sending data to the sending terminal equipment according to the third transmission delay time.
In this step, after the receiving end device obtains the third transmission delay time, it may send data to the sending end device in advance according to the third transmission delay time, and illustratively, the receiving end device may send ACK to the sending end device in advance according to the data sent by the sending end device, so that it may be ensured that the sending end device may receive ACK according to the first transmission delay time, and the sending end device does not need to detect the arrival time of the ACK data.
By adopting the method, after receiving the first transmission delay time and the second transmission delay time sent by the network equipment, the receiving end equipment can acquire the third transmission delay time between the receiving end equipment and the sending end equipment and send data to the sending end equipment according to the third transmission delay time, so that when the sending end equipment and the receiving end equipment transmit data, the network equipment only needs to send the first transmission delay time and the second transmission delay time to the receiving end equipment without sending the first transmission delay time and the second transmission delay time to the sending end equipment, thereby saving link resources and reducing signaling transmission.
Fig. 2 is a flowchart of another method for controlling data transmission according to an embodiment of the present disclosure, and as shown in fig. 2, the method is applied to a network device and includes:
s201, acquiring a first transmission delay time and a second transmission delay time.
The first transmission delay time is transmission delay time between the sending end device and the network device, and the second transmission delay time is transmission delay time between the receiving end device and the network device.
In this step, when the sending end device needs to transmit data to the receiving end device, a connection request may be sent to the network device, and after the network device receives the connection request sent by the sending end device, the network device may obtain, according to a random access preamble (preamble code, preamble sequence) sent by the sending end device, transmission delay time between the sending end device and the network device, that is, first transmission delay time; in addition, after receiving the connection request sent by the sending end device, the network device may send a Paging message over the air interface according to the connection request information of the sending end device to page the receiving end device, after receiving the Paging, the receiving end device may send a preamble sequence to the eNB, and the network device may obtain the second transmission delay time according to the same method as the method for obtaining the first transmission delay time.
S202, the first transmission delay time and the second transmission delay time are sent to the receiving end equipment.
In this step, after the network device obtains the first transmission delay time and the second transmission delay time, the first transmission delay time and the second transmission delay time may be sent to the receiving end device, so that the receiving end device obtains a third transmission delay time between the sending end device and the receiving end device according to the first transmission delay time and the second transmission delay time, and sends data to the sending end device according to the third transmission delay time.
By adopting the method, the network equipment only needs to send the first transmission delay time and the second transmission delay time to the receiving end equipment without sending the first transmission delay time and the second transmission delay time to the sending end equipment, thereby saving link resources and reducing signaling transmission.
Fig. 3 is a flowchart of a third method for controlling data transmission according to an embodiment of the present disclosure, where as shown in fig. 3, the method includes:
s301, the network equipment acquires the first transmission delay time.
The first transmission delay time is transmission delay time between the sending end device and the network device.
In this step, when the sending end device needs to transmit data to the receiving end device, a connection request may be sent to the network device, and after the network device receives the connection request sent by the sending end device, the network device may obtain a transmission delay time, i.e., a first transmission delay time, between the sending end device and the network device according to a random access preamble (preamble sequence ) sent by the sending end device delay1 Is the transmission delay time, T, between UE1 and eNB delay2 For UE2 and eNBWhen UE1 needs to send a photo to UE2, UE1 may send a preamble sequence to eNB, and eNB may obtain a first transmission delay time T through the preamble sequence delay1 (ii) a In addition, when the sending end device initiates a connection request to the network device, if other user devices initiate connection requests to the network device at the same time, after the network device resolves the collision of the multiple user devices, link resources may be allocated to the sending end device and the receiving end device, and the sending end device is notified of the link resources and the first transmission delay time, where the link resources are used for direct communication between the sending end device and the receiving end device, where the link resources may include carriers, start times, durations, MCS (Modulation and Coding Scheme, modulation and Coding strategy), and the like, and then the sending end device enters a connection state.
S302, the network equipment acquires the second transmission delay time.
In this step, after receiving the connection request sent by the sending end device, the network device may send a Paging message through an air interface according to the connection request information of the sending end device to page the receiving end device, and after receiving the Paging, the receiving end device may send a random access preamble (preamble, preamble sequence) to the network device, and the network device may obtain the second transmission delay time according to the same method as the method for obtaining the first transmission delay time, for example, as shown in fig. 4, the eNB may send a Paging message through an air interface according to the connection request information initiated by the UE1 to page the UE2, and after receiving the Paging, the UE2 may send the preamble sequence to the eNB, and the eNB may send the preamble sequence to the eNB according to the obtained T delay1 Same method obtains T delay2 (ii) a Then, the network device sends the link resource allocated to the direct communication between the sending end device and the receiving end device to the receiving end device, and simultaneously, the network device can also send the first transmission delay time and the second transmission delay time to the receiving end device, and then, the receiving end device enters a connection state.
And S303, the receiving end equipment acquires a third transmission delay time according to the first transmission delay time and the second transmission delay time.
It should be noted that, after the sending end device and the receiving end device enter the connection state, the sending end device may switch to the designated frequency point on the designated subframe to perform data transmission, and meanwhile, the receiving end device may switch to the designated frequency point to receive data.
In this step, the sending end device may send the NSSS to the receiving end device according to the first transmission delay time, the receiving end device may search for the NSSS sent by the sending end device according to the second transmission delay time, and after the receiving end device receives the NSSS, a fourth delay time may be obtained according to a time of receiving the NSSS, where the fourth delay time is a time of receiving the NSSS by the receiving end device and is a delay time relative to the second transmission delay time.
Further, after obtaining the fourth transmission delay time, the receiving end device may obtain a difference between the first transmission delay time and the second transmission delay time, and if the first transmission delay time is less than or equal to the second transmission delay time, that is, the distance between the sending end device and the network device is less than or equal to the distance between the receiving end device and the network device, the receiving end device may calculate a third transmission delay time according to a sum of the fourth transmission delay time and the difference; if the first transmission delay time is greater than the second transmission delay time, that is, the distance between the sending end device and the network device is greater than the distance between the receiving end device and the network device, the third transmission delay time may be calculated according to a difference between the fourth transmission delay time and the difference. Illustratively, when the first transmission delay time is less than the second transmission delay time, as shown in fig. 5, the UE1 may follow T delay1 NSSS is sent to UE2 at timing1, UE2 may be according to T delay2 Starting to search for the NSSS sent by UE1 at timing2, where UE2 may obtain a fourth transmission delay time T according to the time timing0 of receiving the NSSS delta The fourth transmission delay time is the delay time of timing0 when the UE2 receives the NSSS relative to timing2, and then the sum of the fourth transmission delay time and the difference can be obtained, wherein the sum is the transmission delay time T of timing0 when the UE2 receives the NSSS relative to timing1 when the UE1 sends the NSSS delay0 Considering that the same transmission delay time exists when UE1 sends NSSS to UE2, the third transmission delay time is T delay0 2 times of the total weight of the composition; if the first transmission delay time is equal to the second transmission delay time, the difference between the first transmission delay time and the second transmission delay time is 0, and a third transmission delay time can be directly calculated according to a fourth transmission delay time, namely the third transmission delay time is 2 times of the fourth transmission delay time; when the first transmission delay time is greater than the second transmission delay time, as shown in fig. 6, here, UE1 may be used as a receiving end device, UE2 may be used as a sending end device, and UE2 may be according to T delay2 NSSS is sent to UE1 at timing2, and UE1 can be according to T delay1 Sliding search for NSSS sent by UE2 at timing1, where UE1 may obtain the fourth transmission delay time T according to the time timing0 of receiving NSSS delta The fourth transmission delay time is the delay time of time timing0 when UE1 receives NSSS relative to time 1, and then the difference between the fourth transmission delay time and the difference can be obtained, where the difference is the transmission delay time T of time timing0 when UE1 receives NSSS relative to time timing2 when UE2 sends NSSS delay0 Considering that the same transmission delay time exists when UE2 sends NSSS to UE1, the third transmission delay time is T delay0 2 times of the total weight of the powder.
And S304, the receiving end equipment sends data to the sending end equipment according to the third transmission delay time.
In this step, after the receiving end device obtains the third transmission delay time, it may send data to the sending end device in advance according to the third transmission delay time, and illustratively, the receiving end device may send ACK to the sending end device in advance according to the data sent by the sending end device, so that it may be ensured that the sending end device may receive ACK according to the first transmission delay time, and the sending end device does not need to detect the arrival time of the ACK data.
By adopting the method, after the network equipment acquires the first transmission delay time and the second transmission delay time, the first transmission delay time and the second transmission delay time can be sent to the receiving end equipment, and then the receiving end equipment can acquire the third transmission delay time between the receiving end equipment and the sending end equipment and send data to the sending end equipment according to the third transmission delay time.
Fig. 7 is a schematic structural diagram of an apparatus for controlling data transmission according to an embodiment of the present disclosure, and as shown in fig. 7, the apparatus is applied to a receiving end device, and includes:
a receiving module 701, configured to receive a first transmission delay time and a second transmission delay time sent by a network device, where the first transmission delay time is a transmission delay time between a sending end device and the network device, and the second transmission delay time is a transmission delay time between a receiving end device and the network device;
an obtaining module 702, configured to obtain a third transmission delay time between the sending end device and the receiving end device according to the first transmission delay time and the second transmission delay time;
a sending module 703, configured to send data to the sending-end device according to the third transmission delay time.
Optionally, the obtaining module 702 is specifically configured to: receiving NSSS sent by the sending terminal equipment according to the first transmission delay time according to the second transmission delay time; acquiring a fourth transmission delay time of receiving the NSSS; and acquiring a third transmission delay time according to the first transmission delay time, the second transmission delay time and the fourth transmission delay time.
Optionally, the obtaining module 702 is further configured to: acquiring a difference value between the first transmission delay time and the second transmission delay time; if the first transmission delay time is less than or equal to the second transmission delay time, calculating to obtain a third transmission delay time according to the sum of the fourth transmission delay time and the difference; and if the first transmission delay time is greater than the second transmission delay time, calculating to obtain a third transmission delay time according to the difference between the fourth transmission delay time and the difference.
By the device, after receiving the first transmission delay time and the second transmission delay time sent by the network device, the receiving end device can acquire the third transmission delay time between the receiving end device and the sending end device and send data to the sending end device according to the third transmission delay time.
Fig. 8 is a schematic structural diagram of another apparatus for controlling data transmission according to an embodiment of the present disclosure, and as shown in fig. 8, the apparatus is applied to a network device, and includes:
an obtaining module 801, configured to obtain a first transmission delay time and a second transmission delay time, where the first transmission delay time is a transmission delay time between a sending end device and a network device, and the second transmission delay time is a transmission delay time between a receiving end device and the network device;
a sending module 802, configured to send the first transmission delay time and the second transmission delay time to the receiving end device, so that the receiving end device obtains, according to the first transmission delay time and the second transmission delay time, a third transmission delay time between the sending end device and the receiving end device, and sends data to the sending end device according to the third transmission delay time.
By the device, the network equipment only needs to send the first transmission delay time and the second transmission delay time to the receiving end equipment and does not need to send the first transmission delay time and the second transmission delay time to the sending end equipment, so that link resources can be saved, and signaling transmission can be reduced.
Fig. 9 is a schematic structural diagram of a terminal 900 according to an embodiment of the present disclosure, and as shown in fig. 9, the terminal 900 may include: a processor 901 and a memory 902. The terminal 900 can also include one or more of a multimedia component 903, an input/output (I/O) interface 904, and a communications component 905.
The processor 901 is configured to control the overall operation of the terminal 900, so as to complete all or part of the steps in the method for controlling data transmission according to the embodiment shown in fig. 1. The memory 902 is used to store various types of data to support operation of the terminal 900, such as instructions for any application or method operating on the terminal 900 and application-related data, such as contact data, messaging, pictures, audio, video, and the like. The Memory 902 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically Erasable Programmable Read-Only Memory (EEPROM), erasable Programmable Read-Only Memory (EPROM), programmable Read-Only Memory (PROM), read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia component 903 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 902 or transmitted through the communication component 905. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 904 provides an interface between the processor 901 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 905 is used for wired or wireless communication between the terminal 900 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, near Field Communication (NFC), 2G, 3G, 4G or 5G, nb-IOT (Narrow Band Internet of Things), or a combination of one or more of them, so that the corresponding Communication component 905 may comprise: wi-Fi module, bluetooth module, NFC module.
In an exemplary embodiment, the terminal 900 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the control data transmission method of the embodiment shown in fig. 1.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the method of controlling data transmission of the embodiment shown in fig. 1 described above is also provided. For example, the computer readable storage medium may be the above-mentioned memory 902 comprising program instructions which are executable by the processor 901 of the terminal 900 to perform the above-mentioned method of controlling data transmission of the embodiment shown in fig. 1.
Fig. 10 is a schematic structural diagram of a network device 1000 according to an embodiment of the present disclosure. For example, the network device 1000 may be provided as a server. Referring to fig. 10, network device 1000 includes a processor 1022, which can be one or more in number, and a memory 1032 for storing computer programs executable by processor 1022. The computer programs stored in memory 1032 may include one or more modules that each correspond to a set of instructions. Further, the processor 1022 may be configured to execute the computer program to perform the method of controlling data transmission of the embodiment shown in fig. 2.
Additionally, the network device 1000 may also include a power component 1026 and a communication component 1050, the power component 1026 may be configured to perform power management of the network device 1000, and the communication component 1050 may be configured to enable communication of the network device 1000, e.g., wired or wireless communication. In addition, the network device 1000 may also include input/output (I/O) interfaces 1058. Network device 1000 may operate based on an operating system stored in memory 1032, such as Windows Server, mac OS XTM, unixTM, linux, and the like.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the method of controlling data transmission of the embodiment shown in fig. 2 described above is also provided. For example, the computer readable storage medium may be the memory 1032 comprising program instructions that are executable by the processor 1022 of the network device 1000 to perform the method of controlling data transmission of the embodiment shown in fig. 2.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the method of controlling data transmission of the embodiment shown in fig. 2 described above when executed by the programmable apparatus.
The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details in the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure. It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure as long as it does not depart from the gist of the present disclosure.
Claims (7)
1. A method for controlling data transmission, which is applied to a receiving end device, the method comprising:
receiving a first transmission delay time and a second transmission delay time sent by a network device, wherein the first transmission delay time is a transmission delay time between a sending end device and the network device, and the second transmission delay time is a transmission delay time between a receiving end device and the network device;
acquiring third transmission delay time between the sending end equipment and the receiving end equipment according to the first transmission delay time and the second transmission delay time;
sending data to the sending end equipment according to the third transmission delay time;
wherein the obtaining a third transmission delay time between the sending end device and the receiving end device according to the first transmission delay time and the second transmission delay time includes:
receiving a narrowband auxiliary synchronization signal NSSS sent by the sending end equipment according to the first transmission delay time according to the second transmission delay time;
acquiring a fourth transmission delay time of receiving the NSSS;
acquiring the third transmission delay time according to the first transmission delay time, the second transmission delay time and the fourth transmission delay time;
the obtaining the third transmission delay time according to the first transmission delay time, the second transmission delay time, and the fourth transmission delay time includes:
acquiring a difference value between the first transmission delay time and the second transmission delay time;
if the first transmission delay time is less than or equal to the second transmission delay time, calculating to obtain a third transmission delay time according to the sum of the fourth transmission delay time and the difference;
and if the first transmission delay time is greater than the second transmission delay time, calculating to obtain the third transmission delay time according to the difference between the fourth transmission delay time and the difference.
2. A method for controlling data transmission, applied to a network device, the method comprising:
acquiring first transmission delay time and second transmission delay time, wherein the first transmission delay time is the transmission delay time between sending end equipment and the network equipment, and the second transmission delay time is the transmission delay time between receiving end equipment and the network equipment;
sending the first transmission delay time and the second transmission delay time to the receiving end device, so that the receiving end device receives a narrowband auxiliary synchronization signal NSSS sent by the sending end device according to the first transmission delay time according to the second transmission delay time, obtains a fourth transmission delay time of receiving the NSSS, obtains a third transmission delay time between the sending end device and the receiving end device according to the first transmission delay time, the second transmission delay time and the fourth transmission delay time, and sends data to the sending end device according to the third transmission delay time;
wherein the obtaining a third transmission delay time between the sending end device and the receiving end device according to the first transmission delay time, the second transmission delay time, and the fourth transmission delay time includes:
acquiring a difference value between the first transmission delay time and the second transmission delay time;
if the first transmission delay time is less than or equal to the second transmission delay time, calculating to obtain a third transmission delay time according to the sum of the fourth transmission delay time and the difference;
and if the first transmission delay time is greater than the second transmission delay time, calculating to obtain the third transmission delay time according to the difference between the fourth transmission delay time and the difference.
3. An apparatus for controlling data transmission, wherein the apparatus is applied to a receiving end device, the apparatus comprising:
a receiving module, configured to receive a first transmission delay time and a second transmission delay time sent by a network device, where the first transmission delay time is a transmission delay time between a sending end device and the network device, and the second transmission delay time is a transmission delay time between a receiving end device and the network device;
an obtaining module, configured to obtain a third transmission delay time between the sending end device and the receiving end device according to the first transmission delay time and the second transmission delay time;
a sending module, configured to send data to the sending end device according to the third transmission delay time; wherein the content of the first and second substances,
the obtaining module is specifically configured to:
receiving a narrowband auxiliary synchronization signal NSSS sent by the sending end equipment according to the first transmission delay time according to the second transmission delay time;
acquiring a fourth transmission delay time of receiving the NSSS;
acquiring the third transmission delay time according to the first transmission delay time, the second transmission delay time and the fourth transmission delay time;
the acquisition module is further configured to:
acquiring a difference value between the first transmission delay time and the second transmission delay time;
if the first transmission delay time is less than or equal to the second transmission delay time, calculating to obtain a third transmission delay time according to the sum of the fourth transmission delay time and the difference;
and if the first transmission delay time is greater than the second transmission delay time, calculating to obtain the third transmission delay time according to the difference between the fourth transmission delay time and the difference.
4. An apparatus for controlling data transmission, applied to a network device, the apparatus comprising:
an obtaining module, configured to obtain a first transmission delay time and a second transmission delay time, where the first transmission delay time is a transmission delay time between a sending end device and the network device, and the second transmission delay time is a transmission delay time between a receiving end device and the network device;
a sending module, configured to send the first transmission delay time and the second transmission delay time to the receiving end device, so that the receiving end device receives, according to the second transmission delay time, a narrowband auxiliary synchronization signal NSSS sent by the sending end device according to the first transmission delay time, obtains a fourth transmission delay time when the NSSS is received, obtains, according to the first transmission delay time, the second transmission delay time, and the fourth transmission delay time, a third transmission delay time between the sending end device and the receiving end device, and sends data to the sending end device according to the third transmission delay time;
wherein, the receiving end device obtains a third transmission delay time between the sending end device and the receiving end device according to the first transmission delay time, the second transmission delay time and the fourth transmission delay time, and the method includes:
acquiring a difference value between the first transmission delay time and the second transmission delay time;
if the first transmission delay time is less than or equal to the second transmission delay time, calculating to obtain a third transmission delay time according to the sum of the fourth transmission delay time and the difference;
and if the first transmission delay time is greater than the second transmission delay time, calculating to obtain the third transmission delay time according to the difference between the fourth transmission delay time and the difference.
5. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method as claimed in claim 1; alternatively, the program when executed by a processor implements the steps of the method of claim 2.
6. A terminal, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to perform the steps of the method of claim 1.
7. A network device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of claim 2.
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| CN102869086B (en) * | 2012-09-25 | 2015-06-17 | 京信通信系统（中国）有限公司 | Method and device for adjusting signal transmission time |
| CN104158646B (en) * | 2013-05-14 | 2018-12-21 | 南京中兴新软件有限责任公司 | Link delay processing method and processing device |
| WO2015027476A1 (en) * | 2013-08-30 | 2015-03-05 | 华为技术有限公司 | Network switching method, access point, controller and base station |
| EP3057363B1 (en) * | 2013-10-31 | 2020-02-12 | Huawei Technologies Co., Ltd. | Timing advance adjustment method and device |
| CN107787039B (en) * | 2016-08-29 | 2020-12-15 | 华为技术有限公司 | Uplink transmission method, downlink transmission method, user equipment and base station |
| CN109640334A (en) * | 2017-10-09 | 2019-04-16 | 大唐移动通信设备有限公司 | A kind of method for transmitting signals and equipment |
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