CN110620640B - Data transmission method, terminal and node equipment - Google Patents
Data transmission method, terminal and node equipment Download PDFInfo
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- CN110620640B CN110620640B CN201810632162.5A CN201810632162A CN110620640B CN 110620640 B CN110620640 B CN 110620640B CN 201810632162 A CN201810632162 A CN 201810632162A CN 110620640 B CN110620640 B CN 110620640B
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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
- 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
- H04L1/1809—Selective-repeat protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—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
- H04L1/1864—ARQ related signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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Abstract
The embodiment of the invention provides a data transmission method, a terminal and node equipment, relates to the technical field of communication, and aims to solve the problem of resource waste caused by the fact that a PDCP entity for sending does not support selective retransmission of data in the prior art. The method comprises the following steps: when the data transmission mode between the terminal and the first node is a confirmation mode, the first node acquires first information; the first node sends indication information to the terminal according to the first information; wherein the first information includes at least one of: whether the length of a packet data convergence protocol PDCP sequence number of the terminal is reconfigured and whether a first node has a data packet which is not received in sequence; the above indication information is used to indicate whether the transmitting PDCP entity of the terminal selectively retransmits the first data.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, a terminal, and a node device.
Background
Currently, when a handover or a radio link failure occurs (e.g., Packet Data Convergence Protocol (PDCP) layer integrity detection failure), a higher layer request for re-establishment is triggered. When PDCP re-establishment, a transmitting PDCP entity in the network side device or the terminal side device may need to perform data retransmission for AM DRB (acknowledged mode data radio bearer).
In the prior art, in the PDCP re-establishment process, when a sending PDCP entity in a network side device or a terminal side device performs a data retransmission process, retransmission is usually started from a first unsuccessfully transmitted data packet in data that needs to be retransmitted, and since the sending PDCP entity in the network side device or the terminal side device does not support selective transmission of data, data is repeatedly transmitted, which results in unnecessary resource waste.
For example, taking PDCP reestablishment caused by a handover process of a terminal from a source node to a target node as an example, as shown in fig. 1, the terminal sends 5 packets with PDCP sequence numbers of 1 to 5 to the source node before handover, where the source node of the packets with sequence numbers 3 and 5 does not successfully receive the packets, and after the terminal switches from the source node to the target node, due to PDCP reestablishment, the terminal may retransmit the packet from the packet with sequence number 3 to the target node, that is, retransmit the packets with sequence numbers 3, 4, and 5, which results in repeated transmission of the packet with sequence number 4.
Disclosure of Invention
The embodiment of the invention provides a data transmission method, a terminal and node equipment, which are used for solving the problem of resource waste caused by the fact that a PDCP entity for sending does not support selective retransmission of data in the prior art.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a data transmission method, where the method includes:
when a data transmission mode between a terminal and a first node is a confirmation mode, the first node acquires first information;
the first node sends indication information to the terminal according to the first information;
wherein the first information comprises at least one of: whether the length of a Packet Data Convergence Protocol (PDCP) sequence number of the terminal is reconfigured and whether the first node has a data packet which is not received in sequence; the indication information is used for indicating whether a transmitting PDCP entity of the terminal selectively retransmits the first data.
In a second aspect, an embodiment of the present invention provides a data transmission method, where the method includes:
when a data transmission mode between a terminal and a first node is a confirmation mode, the terminal receives indication information sent by the first node; the indication information is used for indicating whether a sending Packet Data Convergence Protocol (PDCP) entity of the terminal selectively retransmits first data or not;
and the terminal determines whether to retransmit the first data selectively according to the indication information.
In a third aspect, an embodiment of the present invention provides a node device, including:
the system comprises an acquisition module, a transmission module and a processing module, wherein the acquisition module is used for acquiring first information when a data transmission mode between a terminal and node equipment is a confirmation mode;
the sending module is used for sending indication information to the terminal according to the first information acquired by the acquiring module;
wherein the first information comprises at least one of: whether the length of a Packet Data Convergence Protocol (PDCP) sequence number of the terminal is reconfigured and whether the node equipment has data packets which are not received in sequence; the indication information is used for indicating whether a transmitting PDCP entity of the terminal selectively retransmits the first data.
In a fourth aspect, an embodiment of the present invention provides a terminal, including:
a receiving module, configured to receive, by a terminal, indication information sent by a first node when a data transmission mode between the terminal and the first node is a confirmation mode; the indication information is used for indicating whether a sending Packet Data Convergence Protocol (PDCP) entity of the terminal selectively retransmits first data or not;
a determining module, configured to determine whether to selectively retransmit the first data according to the indication information received by the receiving module.
In a fifth aspect, an embodiment of the present invention provides a node device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when executed by the processor, the computer program implements the steps of the data transmission method according to the first aspect.
In a sixth aspect, an embodiment of the present invention provides a terminal, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the data transmission method according to the second aspect.
In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the data transmission method are implemented as described above.
In the embodiment of the present invention, when the data transmission mode between the terminal and the first node is the acknowledged mode, the first node sends the corresponding indication information to the terminal by obtaining the first information, so as to indicate whether the sending PDCP entity of the terminal selectively retransmits the first data, thereby reducing unnecessary resource waste and improving communication efficiency and efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a communication system according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a data transmission method according to an embodiment of the present invention;
fig. 4 is a second flowchart of a data transmission method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a node device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 7 is a second schematic structural diagram of a node device according to an embodiment of the present invention;
fig. 8 is a second schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the invention can be applied to various communication systems, such as a 5G communication system, a future evolution system or a plurality of communication convergence systems and the like. A variety of application scenarios may be included, for example, scenarios such as machine-to-machine (M2M), D2M, macro-micro communication, enhanced mobile broadband (eMBB), ultra high reliability and ultra low latency communication (urrllc), and mass internet of things communication (mtc). These scenarios include, but are not limited to: the communication between the terminals, the communication between the network devices, or the communication between the network devices and the terminals. The embodiment of the invention can be applied to the communication between the network equipment and the terminal in the 5G communication system, or the communication between the terminal and the terminal, or the communication between the network equipment and the network equipment.
Fig. 2 shows a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention. As shown in fig. 2, the communication system includes at least one node apparatus 100 (only one is shown in fig. 2) and one or more terminals 200 to which each node apparatus 100 is connected.
The node device 100 may be a network side device (network device for short), and the network device may be a base station, a core network device, a Transmission and Reception node (TRP), a relay station, or an access Point. The network device may be a Base Transceiver Station (BTS) in a Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA) network, or may be an nb (nodeb) in Wideband Code Division Multiple Access (WCDMA), or may be an eNB or enodeb (evolved nodeb) in LTE. The Network device 100 may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario. The network device may also be a network device in a 5G communication system or a network device in a future evolution network. The words used are not to be construed as limitations of the invention.
The terminal 200 may be a wireless terminal, which may be a device providing voice and/or other traffic data connectivity to a user, a handheld device having wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved PLMN network, etc., as well as a wired terminal. A Wireless terminal may communicate with one or more core networks via a Radio Access Network (RAN), and may be a Mobile terminal, such as a Mobile phone (or "cellular" phone) and a computer with a Mobile terminal, for example, a portable, pocket, hand-held, computer-included or vehicle-mounted Mobile device, which exchanges languages and/or data with the RAN, and Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like, and may also be a Mobile device, UE terminal, Access terminal, Wireless Communication device, terminal unit, terminal Station, Mobile Station (Mobile Station), and/or Mobile terminal, A Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Station, a Remote Terminal (Remote Terminal), a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a User Agent (User Agent), a Terminal device, and the like. As an example, in the embodiment of the present invention, fig. 2 illustrates that the terminal 200 is a mobile phone, and the node device 100 illustrates a base station.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division". The term "plurality" herein means two or more, unless otherwise specified.
For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", and the like are used to distinguish the same items or similar items with basically the same functions or actions, and those skilled in the art can understand that the words "first", "second", and the like do not limit the quantity and execution order.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
The technical scheme provided by the application is described below with reference to the accompanying drawings.
The first embodiment is as follows:
fig. 3 shows a schematic flowchart of a data transmission method according to an embodiment of the present invention, and as shown in fig. 3, the data transmission method may include:
step 201: when the data transmission mode between the terminal and the first node is the confirmation mode, the first node acquires the first information.
In an embodiment of the present invention, the first information includes at least one of: whether the length of the PDCP sequence number of the terminal is reconfigured and whether the first node has a packet that is not received in-sequence. Illustratively, the reconfiguring of the length of the PDCP sequence number includes reconfiguring the length of the PDCP sequence number from the long PDCP sequence number to the short PDCP sequence number or vice versa.
For example, taking PDCP reestablishment caused by a handover procedure in which a terminal is handed over from a source node to a target node as an example, as shown in fig. 1, sequence numbers of 5 packets of PDCP data sent by the terminal to the source node before handover are 1-5, respectively, where the source node of the packets with sequence numbers 3 and 5 does not successfully receive the packets, and the packets with sequence numbers 1, 2, and 4 have been successfully received by the source node, and since the sequence number 3 is a middle sequence, it can be confirmed that the source node has packets that are not received in sequence. In addition, since the packet with sequence number 3 is the first packet that is not successfully received and acknowledged by the source node, after PDCP is re-established, the terminal needs to start retransmission from the packet with sequence number 3, which results in repeated transmission of the packet with sequence number 4, that is, when the source node has a packet that is not received in sequence, the terminal needs to perform selective retransmission, that is, the packet with sequence number 4 is not retransmitted.
Step 202: and the first node sends the indication information to the terminal according to the first information.
Correspondingly, the opposite terminal receives the indication information.
Wherein, the indication information is used to indicate whether a transmitting PDCP entity of the terminal selectively retransmits the first data.
The first node may be a node device in the communication system shown in fig. 1, for example, a base station; the terminal described above may be a terminal in the communication system shown in fig. 1.
Specifically, the indication information is specifically used to indicate whether a sending PDCP entity of the terminal selectively retransmits the first data to the target node. Illustratively, in a scenario where the anchor PDCP is fixed, for example, a PDCP reestablishment scenario caused by a radio link failure between the first node and the terminal, the target node in the embodiment of the present invention is a source node (i.e., the first node).
In an embodiment of the present invention, if the first information includes at least one of the following: the length of the PDCP sequence number of the terminal is not reconfigured, the first node has a data packet which is not received in sequence, and the indication information is specifically used for indicating a sending PDCP entity of the terminal to selectively retransmit the first data; if the first information includes at least one of: the length of the PDCP sequence number of the terminal is reconfigured, and the first node has a packet that is not received in sequence, where the indication information is specifically used to instruct the sending PDCP entity of the terminal to perform non-selective retransmission of the first data.
For example, if the first information includes: the length of the PDCP sequence number of the terminal is not reconfigured, the first node has a data packet which is not received in sequence, and the indication information is specifically used for indicating a sending PDCP entity of the terminal to selectively retransmit the first data; if the first information includes: the length of the PDCP sequence number of the terminal is reconfigured, and the first node has a packet that is not received in sequence, where the indication information is specifically used to instruct the sending PDCP entity of the terminal to perform non-selective retransmission of the first data.
Illustratively, the above reconfiguration of the length of the PDCP sequence number of the terminal means that the SN field is reconfigured from a long sequence before reconstruction to a short sequence after reconstruction, for example, the SN field is reconfigured from 18 bits to 12 bits.
Optionally, in the embodiment of the present invention, the indication information is carried in a Radio Resource Control (RRC) reconfiguration signaling. For example, the RRC reconfiguration signaling carries 1bit indication information, and if the indication information is set to "1", it indicates that the indication information is used to indicate the terminal to perform selective retransmission, otherwise, the terminal performs non-selective retransmission.
Step 203: and the terminal determines whether to selectively retransmit the first data or not according to the indication information.
In the embodiment of the present invention, if the indication information is specifically used to indicate the terminal to selectively retransmit the first data, the terminal starts to perform retransmission from the first data packet that is not successfully received and acknowledged by the first node, and retransmits only the data packet that is not successfully received and acknowledged by the first node according to the ascending order of the sequence numbers; if the indication information is used for indicating the terminal to perform non-selective retransmission of the first data, the terminal starts to perform retransmission from the first data packet which is not successfully received and confirmed by the first node, and retransmits all the data packets which are previously delivered to the source node to the target node according to the ascending order of the sequence numbers. In a scene that the anchor PDCP is fixed, the source node and the target node are the same node, and in a scene that the anchor PDCP is changed, the source node and the target node are different nodes.
Optionally, the first data includes M data packets, and after the step 203, taking an anchor PDCP fixation scenario as an example, the method further includes the following step 204a or 204 b:
step 204 a: if the indication information is specifically used for indicating the sending PDCP entity of the terminal to selectively retransmit the first data to the first node, the terminal sends N data packets of the M data packets to the first node in sequence.
Correspondingly, the first node at the opposite end receives the N data packets sent by the terminal.
Step 204 b: if the indication information is specifically used for indicating the sending PDCP entity of the terminal to non-selectively retransmit the first data to the first node, the terminal sends M data packets to the first node in sequence.
Correspondingly, the first node at the opposite end receives the M data packets sent by the terminal.
The N data packets are data packets of which the first node does not successfully receive the acknowledgement in the M data packets; m is an integer greater than 1, N is an integer greater than or equal to 1, and M is greater than or equal to N. Illustratively, when sequentially sending data packets to the first node, the terminal sends the data packets starting from the first data packet that does not receive the successful reception acknowledgement of the first node, that is, the first data in the embodiment of the present invention is all data packets after the first data packet that does not receive the successful reception acknowledgement of the first node in the data sent by the terminal to the first node before PDCP reestablishment.
In addition, when the terminal is performing non-selective retransmission, the target node may re-assign a sequence number for a PDCP (service Data Unit, SDU) service Data Unit to be retransmitted.
In the data transmission method provided in the embodiment of the present invention, when the data transmission mode between the terminal and the first node is the acknowledged mode, the first node sends the corresponding indication information to the terminal by obtaining the first information, so as to indicate whether the sending PDCP entity of the terminal selectively retransmits the first data, thereby reducing unnecessary resource waste and improving communication efficiency and efficiency.
Example two:
fig. 4 shows a flowchart of a data transmission method provided in an embodiment of the present invention, and the embodiment of the present invention mainly aims at a scenario in which an anchor PDCP changes, that is, a scenario in which a terminal switches from a first node to a second node, as shown in fig. 4, the data transmission method may include:
step 301: when the data transmission mode between the terminal and the first node is the confirmation mode, the first node acquires the first information.
In an embodiment of the present invention, the first information includes at least one of: whether the length of the PDCP sequence number of the terminal is reconfigured, whether the first node has data packets which are not received in sequence and whether the first node needs to forward data to the second node.
Step 302: and the first node sends the indication information to the terminal according to the first information.
Wherein, the indication information is used to indicate whether a transmitting PDCP entity of the terminal selectively retransmits the first data.
Specifically, the indication information is specifically used to indicate whether a sending PDCP entity of the terminal selectively retransmits the first data to the target node. Illustratively, in a scenario where the anchor PDCP changes, the target node in the embodiment of the present invention is the second node.
Optionally, in this embodiment of the present invention, in a scenario where the anchor PDCP entity changes, if the first information includes at least one of the following: the length of the PDCP sequence number of the terminal is not reconfigured, and the first node has a data packet that is not received in sequence and needs to forward data to the second node, then the above-mentioned indication information is specifically used to indicate the sending PDCP entity of the terminal to selectively retransmit the first data; if the first information includes at least one of: the length of the PDCP sequence number of the terminal is reconfigured, the first node has a packet that is not received in sequence, and the first node does not need to forward data to the second node, and the indication information is specifically used to indicate the sending PDCP entity of the terminal to perform non-selective retransmission of the first data.
For example, in a scenario where the anchor PDCP entity changes, if the first information is: the length of the PDCP sequence number of the terminal is not reconfigured, the first node has a data packet that is not received in sequence, and the first node needs to forward data to the second node, and the indication information is specifically used to indicate a sending PDCP entity of the terminal to selectively retransmit the first data; if the first information is: the length of the PDCP sequence number of the terminal is reconfigured, the first node has a packet that is not received in sequence, and the first node does not need to forward data to the second node, and the indication information is specifically used to indicate the sending PDCP entity of the terminal to perform non-selective retransmission of the first data.
Step 303: and the terminal determines whether to selectively retransmit the first data or not according to the indication information.
Step 304: the first node sends the second information and/or the second data to the second node.
In this embodiment of the present invention, the second information is used to instruct the second node to adjust the receiving window of the second node, and the second node maintains the receiving window corresponding to the second node based on the second information after receiving the second information, so that the adjusted receiving window of the second node is the same as the receiving window of the first node. For example, the second information is the receiving status information of the data packet of the first node, and the receiving status information includes but is not limited to: receive window information (e.g., COUNT parameter, HFN parameter, SN information of unsuccessfully received packets, etc.).
In one example, the first node transmits the second information and/or the second data to the second node in case that the indication information is used to indicate a transmitting PDCP entity of the terminal to selectively retransmit the first data.
In this embodiment of the present invention, the second data is data that the sending PDCP entity of the first node has not been delivered to an upper layer.
Optionally, the first data includes M data packets, and taking a scene of anchor PDCP change as an example, after the step 303, the method further includes the following step 305a or step 305 b:
step 305 a: if the indication information is specifically used for indicating the sending PDCP entity of the terminal to selectively retransmit the first data to the first node, the terminal sends N data packets of the M data packets to the second node in sequence.
Correspondingly, the second node receives the N data packets sent by the terminal.
Step 305 b: if the indication information is specifically used for indicating the sending PDCP entity of the terminal to non-selectively retransmit the first data to the first node, the terminal sends M data packets to the second node in sequence.
Correspondingly, the second node receives the M data packets sent by the terminal.
The N data packets are data packets of which the first node does not successfully receive the acknowledgement in the M data packets; m is an integer greater than 1, N is an integer greater than or equal to 1, and M is greater than or equal to N. Illustratively, when the terminal sends the data packets to the second node in sequence, the data packets are sent from the first data packet which is not acknowledged by the first node successfully.
It should be noted that the details of the same or related contents as those in the first embodiment (e.g., steps 301 to 303) in the second embodiment are specifically explained in the first embodiment, and the descriptions of the second embodiment are omitted here.
In the data transmission method provided by the embodiment of the invention, in a scenario that the data transmission mode between the terminal and the first node is the acknowledged mode and the anchor PDCP entity is changed, the first node sends corresponding indication information to the terminal by acquiring the first information to indicate whether the sending PDCP entity of the terminal selectively retransmits the first data, thereby reducing unnecessary resource waste and improving communication efficiency and efficiency.
Example three:
as shown in fig. 5, an embodiment of the present invention provides a node apparatus 400, where the node apparatus 400 includes: an obtaining module 401 and a sending module 402, wherein:
an obtaining module 401, configured to obtain the first information when a data transmission mode between the terminal and the node device is an acknowledged mode.
A sending module 402, configured to send instruction information to the terminal according to the first information acquired by the acquiring module 401.
Wherein the first information includes at least one of: whether the length of the PDCP sequence number of the terminal is reconfigured and whether the node equipment has a data packet which is not received in sequence; the above indication information is used to indicate whether the transmitting PDCP entity of the terminal selectively retransmits the first data.
Optionally, in a scenario that the terminal is switched from the node device to the second node, the first information further includes: whether the node device needs to forward the data to the second node.
Optionally, the sending module 402 is further configured to send second information and/or second data to the second node; the second information is used for instructing the second node to adjust a receiving window of the second node, and the adjusted receiving window of the second node is the same as the receiving window of the node device; the second data is data that has not been delivered to the upper layer by the node device.
Optionally, as shown in fig. 5, the node apparatus 400 further includes: a receiving module 403, wherein:
the first data includes M data packets, and the receiving module 403 is configured to receive N data packets of the M data packets that are sequentially sent by the terminal if the indication information is specifically used to indicate the sending PDCP entity of the terminal to selectively retransmit the first data to the node device; if the indication information is specifically used for indicating a sending PDCP entity of the terminal to retransmit the first data to the node device, receiving M data packets sent by the terminal in sequence; the N data packets are data packets which are not successfully received and confirmed by the node device in the M data packets; m is an integer greater than 1, N is an integer greater than or equal to 1, and M is greater than or equal to N.
Optionally, the indication information is carried in RRC reconfiguration signaling.
In the node device provided in the embodiment of the present invention, when the data transmission mode between the terminal and the node device is the acknowledged mode, the node device sends the corresponding indication information to the terminal by obtaining the first information, so as to indicate whether the sending PDCP entity of the terminal selectively retransmits the first data, thereby reducing unnecessary resource waste and improving communication efficiency and efficiency.
The node device provided in the embodiment of the present invention can implement the process shown in fig. 3 or fig. 4 in the above method embodiment, and is not described here again to avoid repetition.
Example four:
as shown in fig. 6, an embodiment of the present invention provides a terminal 500, where the terminal 500 includes: a receiving module 501 and a determining module 502, wherein:
a receiving module 501, configured to receive, by a terminal, indication information sent by a first node when a data transmission mode between the terminal and the first node is a confirmation mode; the indication information is used for indicating whether a sending packet data convergence protocol PDCP entity of the terminal selectively retransmits the first data.
A determining module 502, configured to determine whether to selectively retransmit the first data according to the indication information received by the receiving module 501.
Optionally, as shown in fig. 6, the terminal 500 further includes: a sending module 503, wherein:
the first data comprises M data packets; a sending module 503, configured to send N data packets of the M data packets to the target node in sequence if the indication information is specifically used to indicate a sending PDCP entity of the terminal to selectively retransmit the first data; if the indication information is specifically used for indicating the PDCP entity sending the terminal to perform non-selective retransmission on the first data, M data packets are sent to the target node in sequence; the N data packets are data packets of which the first node does not successfully receive the acknowledgement in the M data packets; m is an integer greater than 1, N is an integer greater than or equal to 1, and M is greater than or equal to N.
Optionally, the indication information is carried in RRC reconfiguration signaling.
According to the terminal provided by the embodiment of the invention, when the data transmission mode between the terminal and the first node is the confirmation mode, the terminal determines whether to selectively retransmit the first data according to the indication information sent by the first node, so that unnecessary resource waste is reduced, and the communication efficiency and efficiency are improved.
The terminal provided by the embodiment of the present invention can implement the process shown in fig. 3 or fig. 4 in the above method embodiment, and is not described here again to avoid repetition.
Example five:
fig. 7 is a schematic diagram of a hardware structure of a node device for implementing an embodiment of the present invention, where the node device 600 includes: a processor 601, a transceiver 602, a memory 603, a user interface 604 and a bus interface.
The processor 601 is configured to, when a data transmission mode between the terminal and the node device 600 is a confirmation mode, obtain first information, and send instruction information to the terminal according to the first information; wherein the first information includes at least one of: whether the length of the PDCP sequence number of the terminal is reconfigured and whether the first node has a data packet which is not received in sequence; the above indication information is used to indicate whether the transmitting PDCP entity of the terminal selectively retransmits the first data.
When the data transmission mode between the terminal and the node device is the acknowledged mode, the node device sends the corresponding indication information to the terminal by obtaining the first information, so as to indicate whether the sending PDCP entity of the terminal selectively retransmits the first data, thereby reducing unnecessary resource waste and improving communication efficiency and efficiency.
In the embodiment of the present invention, in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by the processor 601 and various circuits of the memory represented by the memory 603 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 602 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 604 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 may store data used by the processor 601 in performing operations.
In addition, the node apparatus 600 further includes some functional modules that are not shown, and are not described herein again.
Example six:
fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the configuration of terminal 100 shown in fig. 8 is not intended to be limiting, and terminal 100 may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal 100 includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The user input unit 107 is configured to receive indication information sent by the first node when a data transmission mode between the terminal and the first node is a confirmation mode; the indication information is used for indicating whether a sending packet data convergence protocol PDCP entity of the terminal selectively retransmits the first data or not; a processor 110, configured to determine whether to selectively retransmit the first data according to the indication information received by the user input unit 107.
According to the terminal provided by the embodiment of the invention, when the data transmission mode between the terminal and the first node is the confirmation mode, the terminal determines whether to selectively retransmit the first data according to the indication information sent by the first node, so that unnecessary resource waste is reduced, and the communication efficiency and efficiency are improved.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.
The terminal 100 provides the user with wireless broadband internet access through the network module 102, such as helping the user send and receive e-mails, browse web pages, and access streaming media.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.
The input unit 104 is used to receive an audio or video signal. The input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.
The terminal 100 also includes at least one sensor 105, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal 100. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and receives and executes commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 8, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the terminal 100, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the terminal 100, and is not limited herein.
The interface unit 108 is an interface for connecting an external device to the terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 100 or may be used to transmit data between the terminal 100 and the external device.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the terminal 100, connects various parts of the entire terminal 100 using various interfaces and lines, performs various functions of the terminal 100 and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the terminal 100. Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and optionally, the power supply 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.
In addition, the terminal 100 includes some functional modules that are not shown, and thus, the detailed description thereof is omitted.
Example seven:
optionally, an embodiment of the present invention further provides a terminal, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements the process of the data transmission method in the first embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
Example eight:
optionally, an embodiment of the present invention further provides a node device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements the process of the data transmission method in the first embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements multiple processes of the data transmission method in the foregoing embodiments, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements a plurality of processes of the foregoing random access method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer readable storage medium is, for example, ROM, RAM, magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (19)
1. A method of data transmission, the method comprising:
when a data transmission mode between a terminal and a first node is a confirmation mode, the first node acquires first information;
the first node sends indication information to the terminal according to the first information;
wherein the first information comprises at least one of: whether the length of a Packet Data Convergence Protocol (PDCP) sequence number of the terminal is reconfigured and whether the first node has a data packet which is not received in sequence; the indication information is used for indicating whether a transmitting PDCP entity of the terminal selectively retransmits the first data.
2. The method according to claim 1, wherein in a scenario where the terminal is handed over from the first node to a second node, the first information further comprises: whether the first node needs to forward data to the second node.
3. The method of claim 2, wherein after the first node sends the indication information to a terminal, the method further comprises:
the first node sends second information and/or second data to the second node;
the second information is used for instructing the second node to adjust a receiving window of the second node, and the adjusted receiving window of the second node is the same as the receiving window of the first node; the second data is data that has not been submitted to an upper layer by the first node.
4. The method of claim 1, wherein the first data comprises M packets;
after the first node sends the indication information to the terminal according to the first information, the method further includes:
if the indication information is specifically used for indicating a sending PDCP entity of the terminal to selectively retransmit the first data to the first node, the first node receives N data packets of the M data packets sent by the terminal in sequence;
if the indication information is specifically used for indicating a sending PDCP entity of the terminal to non-selectively retransmit the first data to the first node, the first node receives the M data packets sent by the terminal in sequence;
wherein the N data packets are data packets of the M data packets for which successful reception confirmation by the first node is not obtained; m is an integer greater than 1, N is an integer greater than or equal to 1, and M is greater than or equal to N.
5. The method according to any of claims 1 to 4, wherein the indication information is carried in radio resource control, RRC, reconfiguration signaling.
6. A method of data transmission, the method comprising:
when a data transmission mode between a terminal and a first node is a confirmation mode, the terminal receives indication information sent by the first node; the indication information is used for indicating whether a sending Packet Data Convergence Protocol (PDCP) entity of the terminal selectively retransmits first data or not;
and the terminal determines whether to retransmit the first data selectively according to the indication information.
7. The method of claim 6, wherein the first data comprises M packets;
after the terminal determines whether to selectively retransmit the first data according to the indication information, the method further includes:
if the indication information is specifically used for indicating a sending PDCP entity of the terminal to selectively retransmit the first data, the terminal sends N data packets in the M data packets to a target node in sequence;
if the indication information is specifically used for indicating a sending PDCP entity of the terminal to non-selectively retransmit the first data, the terminal sends the M data packets to the target node in sequence;
wherein the N data packets are data packets of the M data packets for which successful reception confirmation by the first node is not obtained; m is an integer greater than 1, N is an integer greater than or equal to 1, and M is greater than or equal to N.
8. The method of claim 7, wherein the indication information is carried in Radio Resource Control (RRC) reconfiguration signaling.
9. A node apparatus, comprising:
the system comprises an acquisition module, a transmission module and a processing module, wherein the acquisition module is used for acquiring first information when a data transmission mode between a terminal and node equipment is a confirmation mode;
the sending module is used for sending indication information to the terminal according to the first information acquired by the acquiring module;
wherein the first information comprises at least one of: whether the length of a Packet Data Convergence Protocol (PDCP) sequence number of the terminal is reconfigured and whether the node equipment has data packets which are not received in sequence; the indication information is used for indicating whether a transmitting PDCP entity of the terminal selectively retransmits the first data.
10. The node device of claim 9, wherein in a scenario where the terminal is handed over from the node device to a second node, the first information further comprises: whether the node device needs to forward data to the second node.
11. The node device according to claim 10, wherein the sending module is further configured to send second information and/or second data to the second node;
the second information is used for instructing the second node to adjust a receiving window of the second node, and the adjusted receiving window of the second node is the same as the receiving window of the node device; the second data is data that has not been submitted to an upper layer by the node device.
12. The node apparatus of claim 9, wherein the first data comprises M packets;
the node device further includes:
a receiving module, configured to receive N data packets of the M data packets that are sequentially sent by the terminal if the indication information is specifically used to indicate a sending PDCP entity of the terminal to selectively retransmit the first data to the node device; if the indication information is specifically used for indicating a sending PDCP entity of the terminal to non-selectively retransmit the first data to the node device, receiving the M data packets sent by the terminal in sequence;
the N data packets are data packets which are not confirmed to be successfully received by the node equipment in the M data packets; m is an integer greater than 1, N is an integer greater than or equal to 1, and M is greater than or equal to N.
13. The node device according to any of claims 9 to 12, wherein the indication information is carried in radio resource control, RRC, reconfiguration signaling.
14. A terminal, comprising:
a receiving module, configured to receive, by a terminal, indication information sent by a first node when a data transmission mode between the terminal and the first node is a confirmation mode; the indication information is used for indicating whether a sending Packet Data Convergence Protocol (PDCP) entity of the terminal selectively retransmits first data or not;
a determining module, configured to determine whether to selectively retransmit the first data according to the indication information received by the receiving module.
15. The terminal of claim 14, wherein the first data comprises M data packets;
the terminal further comprises:
a sending module, configured to send N data packets of the M data packets to a target node in sequence if the indication information is specifically used to indicate a sending PDCP entity of the terminal to selectively retransmit the first data; if the indication information is specifically used for indicating a sending PDCP entity of the terminal to non-selectively retransmit the first data, sending the M data packets to the target node in sequence;
wherein the N data packets are data packets of the M data packets for which successful reception confirmation by the first node is not obtained; m is an integer greater than 1, N is an integer greater than or equal to 1, and M is greater than or equal to N.
16. The terminal according to claim 14 or 15, wherein the indication information is carried in radio resource control, RRC, reconfiguration signaling.
17. Node device, comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when being executed by the processor, realizing the steps of the data transmission method according to any one of claims 1 to 5.
18. A terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the data transmission method according to any one of claims 6 to 8.
19. 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 data transmission method according to one of claims 1 to 8.
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| CN113596736B (en) * | 2020-04-30 | 2022-09-02 | 维沃移动通信有限公司 | Data retransmission method and device, target node, source node and terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588225A (en) * | 2009-06-25 | 2009-11-25 | 杭州再灵电子科技有限公司 | Quick retransmission technique based on packet switching network |
| CN104486051A (en) * | 2014-12-09 | 2015-04-01 | 京信通信系统（中国）有限公司 | Data retransmission method and device |
| CN107241164A (en) * | 2017-05-05 | 2017-10-10 | 电信科学技术研究院 | A kind of radio bearer repeats the processing method and processing device of transmission |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8830950B2 (en) * | 2007-06-18 | 2014-09-09 | Qualcomm Incorporated | Method and apparatus for PDCP reordering at handoff |
| KR101206084B1 (en) * | 2008-04-25 | 2012-11-28 | 리서치 인 모션 리미티드 | Method and system for the control of discontinuous reception in a wireless network |
| KR100939722B1 (en) * | 2008-08-11 | 2010-02-01 | 엘지전자 주식회사 | Data transmission method and user equipment for the same |
| CN101699898B (en) * | 2009-11-03 | 2012-11-28 | 中兴通讯股份有限公司 | Method for transmitting grouped data in grouping service domain and system thereof |
| CN102056226B (en) * | 2009-11-10 | 2016-03-02 | 中兴通讯股份有限公司 | The acquisition methods of PDCP status report and PDCP entity |
-
2018
- 2018-06-19 CN CN201810632162.5A patent/CN110620640B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588225A (en) * | 2009-06-25 | 2009-11-25 | 杭州再灵电子科技有限公司 | Quick retransmission technique based on packet switching network |
| CN104486051A (en) * | 2014-12-09 | 2015-04-01 | 京信通信系统（中国）有限公司 | Data retransmission method and device |
| CN107241164A (en) * | 2017-05-05 | 2017-10-10 | 电信科学技术研究院 | A kind of radio bearer repeats the processing method and processing device of transmission |
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