CN113938438A - Data processing method, data processing device and first terminal - Google Patents
Data processing method, data processing device and first terminal Download PDFInfo
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Abstract
The application discloses a data processing method, a data processing device and a first terminal, and belongs to the technical field of communication. The method comprises the following steps: receiving a first message sent by network side equipment, wherein the first message is used for indicating that a transmission path of a target service is changed from a first transmission path to a second transmission path; processing the second data of the target service after processing the first data of the target service; the first data of the target service is data received in a first transmission path, and the second data of the target service is data received in a second transmission path. In the application, under the condition that the transmission path of the data is changed, the first terminal processes the data received in the first transmission path first and then processes the data received in the second transmission path, so that the first terminal can be ensured to process the data of the target service in sequence according to the data receiving sequence of the target service, thereby reducing data loss and avoiding interruption of the received data.
Description
Technical Field
The present application belongs to the field of communication technologies, and in particular, to a data processing method, a data processing apparatus, and a first terminal.
Background
In the prior art, a transmission path of data may be changed, before and after the change of the transmission path, a network side device transmits data through different transmission paths, and a terminal may also receive data sent by the network side device through different transmission paths. The terminal may have a technical problem of data loss or interruption in the process of processing data received by different transmission paths.
Disclosure of Invention
An object of the embodiments of the present application is to provide a data processing method, a data processing apparatus, and a first terminal, which can solve a problem that data may be lost or interrupted when the terminal processes data received by different transmission paths.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, a data processing method is provided, which is applied to a first terminal, and the method includes:
receiving a first message sent by a network side device, wherein the first message is used for indicating that a transmission path of a target service is changed from a first transmission path to a second transmission path;
processing the second data of the target service after processing the first data of the target service; the first data of the target service is data received by the first terminal on the first transmission path, and the second data of the target service is data received by the first terminal on the second transmission path.
In a second aspect, a data processing apparatus is provided, which is applied to a first terminal, and includes:
a receiving module, configured to receive a first message sent by a network side device, where the first message is used to indicate that a transmission path of a target service is changed from a first transmission path to a second transmission path;
the processing module is used for processing the second data of the target service after processing the first data of the target service; the first data of the target service is data received by the first terminal on the first transmission path, and the second data of the target service is data received by the first terminal on the second transmission path.
In a third aspect, there is provided a first terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect.
In a fourth aspect, a readable storage medium is provided, on which a program or instructions are stored, which when executed by a processor, implement the steps of the method according to the first aspect.
In a fifth aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a network-side device program or instruction to implement the method according to the first aspect.
In the embodiment of the application, under the condition that the transmission path of the data is changed, the first terminal processes the data received on the first transmission path first and then processes the data received on the second transmission path, so that when the transmission path of the target service is changed, the first terminal can be ensured to process the data of the target service in sequence according to the data receiving sequence of the target service, thereby reducing data loss and avoiding interruption of received data.
Drawings
FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 2 is a flowchart of a data processing method provided in an embodiment of the present application;
fig. 3 is a block diagram of a data processing apparatus according to an embodiment of the present application;
fig. 4 is a block diagram of a communication device provided in an embodiment of the present application;
fig. 5 is a hardware configuration diagram of a first terminal according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.
Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.
The data processing method, the data processing apparatus, the network side device and the first terminal provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Fig. 2 is a flowchart of a data processing method provided in an embodiment of the present application, and as shown in fig. 2, the data processing method is applied to a first terminal, and the method includes the following steps:
step 201: receiving a first message sent by a network side device, wherein the first message is used for indicating that a transmission path of a target service is changed from a first transmission path to a second transmission path.
In the embodiment of the present application, the first terminal may be understood as the terminal 11 in fig. 1.
In the field of communications technology, services generally include Multicast services, such as MBMS (Multimedia Broadcast Multicast Service), MBS (Broadcast Multicast Service), and unicast services.
MBMS is generally transmitted in two ways: first, the transmission is performed through a PMCH (Physical Multicast Channel) Physical Channel in an MBSFN (Multimedia Broadcast Multicast service Single Frequency Network) subframe, wherein Control information is transmitted through system information (such as SIB13) and an MCCH (Broadcast Control Channel), and data is transmitted through an MTCH (Broadcast Traffic Channel). Second, the data is transmitted through a Physical Downlink Shared Channel (PDSCH) scheduled by a PDCCH (Physical Downlink Control Channel), wherein the Control information is transmitted through system information (e.g., SIB20) and a Single Cell Multicast Control Channel (SC-MCCH), and the data is transmitted through a Single Cell Multicast Traffic Channel (SC-MTCH). The SC-MCCH is transmitted through a PDSCH scheduled by a PDCCH (Single Cell RNTI, Radio Network Temporary Identity) and the SC-MTCH is transmitted through a PDSCH scheduled by G-RNTI PDCCH. The MBS service is generally transmitted through a specific MRB (MBMS Radio Bearer), and the MBS service may be marked by an identifier such as TMGI (Temporary Mobile Group Identity) and QoS flow ID. Unicast traffic is typically transmitted over a particular DRB (Data Radio Bearer).
In the embodiment of the present application, the target service may be understood as a specific service, the target service may be a multicast service or a unicast service, and the network side device may indicate the target service through the indication information. The network side device may indicate the target service through the first message, that is, the first message may include indication information of the target service. The indication information for indicating the target service may include at least one of a Session identifier (e.g., PDU Session-1), a data flow identifier (e.g., QoS flow-1), and a multicast service identifier (e.g., TMGI-1).
In the embodiment of the present application, the change of the transmission path of the target service may include a change of a transmission path of the target service, and may also include a change of a reception path of the target service. That is, the network side device may instruct, through the first message, that the transmission path of the target service is changed from the first transmission path to the second transmission path, so that the network side device may transmit the data of the target service to the terminal through the second transmission path, and the terminal may receive the data of the target service transmitted by the network side device through the reception path corresponding to the second transmission path. The network side device may also instruct, through the first message, the receiving path of the target service to change from the first receiving path to the second receiving path, so that the network side device may send the data of the target service to the terminal through the sending path corresponding to the second receiving path, and the terminal may receive the data of the target service sent by the network side device through the second receiving path.
In this embodiment of the application, the first transmission path may also be referred to as a source path (for example, expressed as a source receiving path, a source sending path, or a source bearer), and the second transmission path may also be referred to as a target path (for example, expressed as a target receiving path, a target sending path, or a target bearer).
In the embodiment of the application, no matter whether the target service is a unicast service or a multicast service, the first transmission path may be a transmission path in a unicast transmission mode or a transmission path in a multicast transmission mode; accordingly, the second transmission path may be a transmission path of a unicast transmission scheme or a transmission path of a multicast transmission scheme.
Optionally, the first transmission path is a transmission path of a unicast transmission mode, and the second transmission path is a transmission path of a multicast transmission mode. For example, the first transmission path is DRB and the second transmission path is MRB. For another example, the first transmission path is a unicast RLC (Radio Link Control) entity of RB-1(Radio Bearer-1), and the second transmission path is a multicast RLC entity of RB-1.
Optionally, the first transmission path is a transmission path of a multicast transmission mode, and the second transmission path is a transmission path of a unicast transmission mode. For example, the first transmission path is an MRB and the second transmission path is a DRB. As another example, the first transmission path is a multicast RLC receiving entity of RB-1 and the second transmission path is a unicast RLC receiving entity of RB-1.
Optionally, the first transmission path and the second transmission path are transmission paths of different radio bearers, respectively. For example, the first transmission path is MRB-1, the second transmission path is DRB-1; or the first transmission path is DRB-2 and the second transmission path is MRB-2.
Optionally, the first transmission path and the second transmission path are different transmission paths of the same radio bearer. For example, bearer 1 has 1 PDCP (Packet Data Convergence Protocol) receiving entity, which is associated with 2 RLC receiving entities, where RLC-1 corresponds to the first transmission path and RLC-2 corresponds to the second transmission path.
As an example, in step 201, the first message sent by the network side device to the terminal may be used to instruct the terminal to change the multicast service of TMGI-1 in MRB-1 to DRB-1 for reception.
Step 202: processing the second data of the target service after processing the first data of the target service; the first data of the target service is data received by the first terminal on the first transmission path, and the second data of the target service is data received by the first terminal on the second transmission path.
In the embodiment of the application, the first terminal processes the data received in the first transmission path first and then processes the data received in the second transmission path, so that when the transmission path of the target service is changed, the first terminal can be ensured to process the data of the target service in sequence according to the data receiving sequence of the target service, thereby reducing data loss and avoiding interruption of received data.
Optionally, the processing the first data of the target service includes:
and processing the first data of the target service and delivering the first data to a high-layer protocol entity.
Optionally, the processing and submitting the first data of the target service to the higher layer protocol entity includes any one of the following:
reestablishing a Radio Link Control (RLC) entity of the first transmission path;
processing the first data of the target service through an RLC entity, and delivering the processed first data of the target service to a high-layer protocol entity;
reconstructing a Packet Data Convergence Protocol (PDCP) entity of the first transmission path;
and processing the first data of the target service through a PDCP entity, and delivering the processed first data of the target service to a high-layer protocol entity.
In this embodiment, the first terminal may reconstruct the RLC entity of the first transmission path, or may not reconstruct the RLC entity of the first transmission path, but process the buffered first data of the target service and deliver the complete RLC SDU data to the upper protocol entity. The first terminal may also reconstruct the PDCP entity of the first transmission path, or may not reconstruct the PDCP entity of the first transmission path, but process the buffered first data of the target service and deliver the processed first data to the upper layer protocol entity.
Optionally, the processing and delivering the first data of the target service to the higher layer protocol entity includes at least one of the following:
ignoring data which is not received by the first terminal on the first transmission path;
processing the data cached by the first terminal and submitting the data to a high-level protocol entity;
discarding a first lost packet of the first terminal on the first transmission path and a packet following the first lost packet;
and processing and delivering the data packet before the first lost data packet to a high-layer protocol entity.
In this embodiment, the first terminal may ignore the data that the first terminal does not receive in the first transmission path, and process and deliver the data cached by the first terminal to the upper layer protocol entity. For example, the PDCP receiving entity of the first terminal receives the PDCP PDU-1/3 on the first transmission path, but does not receive the PDCP PDU-2, the PDCP receiving entity may ignore the PDCP PDU-2, process the PDCP PDU-1/3, e.g., decrypt or decompress the PDCP PDU-1/3 or remove the header of the PDCP PDU, and deliver it to the higher protocol entity of the PDCP receiving entity.
In this embodiment, the first terminal may process and deliver the data packet before the first lost data packet of the first transmission path to the higher layer protocol entity, and discard all data packets after the data packet from the first lost data packet. For example, the PDCP receiving entity of the first terminal receives the PDCP PDU-1/3/5 on the first transmission path, where the PDCP PDU-2 is the first lost packet, and the PDCP receiving entity processes the PDCP PDU-1, for example, decrypts or decompresses the PDCP PDU-1 or removes the header of the PDCP PDU, and then delivers it to the higher protocol entity of the PDCP receiving entity, and discards the PDCP PDU-3/5.
Optionally, the second data of the target service includes:
a first missing data packet of the first transmission path and a data packet following the first missing data packet by the first terminal;
data packets lost by the first terminal on the first transmission path;
n terminals, including the first terminal, an earliest data packet among first lost data packets of the first transmission path and data packets subsequent to the earliest data packet;
the latest data packet of the first lost data packets of the first transmission path and the data packets after the latest data packet are transmitted by the N terminals.
In this embodiment, when a plurality of terminals report or feed back data reception status information of a target service in a first transmission path to a network side device, the data reception status information reported by the plurality of terminals may be different, for example, a first lost packet in the first transmission path reported by the plurality of terminals may be different. In this case, there are several possible situations that may exist for the first data of the target service sent by the network side device on the second transmission path.
First, the network side device regards the earliest lost data packet among the first lost data packets of the first transmission path of the plurality of terminals as a reference, and takes the earliest lost data packet and the data packets after the earliest lost data packet as data to be retransmitted on the second transmission path. For example, UE-1 reports that the first lost data packet in the first transmission path is data packet-1, UE-2 reports that the first lost data packet in the first transmission path is data packet-2, the earliest lost data packet is data packet-1, and the network side device retransmits the data packet from data packet-1.
The network side device regards a latest lost data packet in the first lost data packet of the first transmission path of the plurality of terminals as a reference, and takes the latest lost data packet and a data packet after the latest lost data packet as data to be retransmitted on the second transmission path. For example, UE-1 reports that the first lost data packet in the first transmission path is data packet-1, UE-2 reports that the first lost data packet in the first transmission path is data packet-2, and then the latest lost data packet is data packet-2, and the network side device starts to retransmit the data packet from data packet-2.
Thirdly, the network side device takes the data packet lost by each terminal on the first transmission path as the data to be retransmitted on the second transmission path.
In this embodiment, the network side device may send the data packet after the first lost data packet of the first transmission path to the terminal on the second transmission path, that is, all subsequent data packets including the first lost data packet may be sent through the second transmission path from the first lost data packet of the first transmission path. The network side device may also send all data packets lost on the first transmission path to the first terminal on the second transmission path, and for a data packet successfully received by the first terminal on the first transmission path, the network side device may not repeat sending.
Optionally, the processing the second data of the target service includes:
and discarding the data packet meeting the preset condition in the second data of the target service.
In this embodiment, after receiving the second data of the target service sent by the network side device, the first terminal may discard the data packet that meets the preset condition. Specifically, the first terminal may determine, according to data packet number information corresponding to the second data of the target service indicated by the network side device in the first transmission path, a data packet that meets the preset condition from the second data of the target service.
Optionally, the data packet meeting the preset condition includes any one of the following items:
delivering the data packet to the high-layer protocol entity on the first transmission path;
the received data packet is ignored in the first transmission path.
The higher layer Protocol entity may include, from top to bottom, an SDAP (Service Data Adaptation Protocol), a PDCP (Packet Data Convergence Protocol), an RLC (Radio Link Control), and an MAC (Media Access Control) in sequence.
Since the network side device may retransmit the data packet that the first terminal has received on the first transmission path through the second transmission path, for the portion of data packet, if the first terminal has delivered to the higher-layer protocol entity on the first transmission path, the first terminal may discard the portion of data packet without being delivered to the higher-layer protocol entity again. In addition, for the data packet that the first terminal has ignored on the first transmission path, even if the network side device performs retransmission through the second transmission path, the first terminal may discard the data packet.
In this embodiment, by discarding the data packet that satisfies the preset condition, the first terminal can save the resource transmission overhead, and the communication performance of the first terminal is improved.
Optionally, after step 201, the method further includes:
and sending a second message to the network side equipment, wherein the second message is used for indicating the receiving state of the first terminal to the target service in the first transmission path.
The second message can be transmitted through at least one transmission path of the first transmission path and the second transmission path, so that the transmission reliability of the second message is improved. Assuming that the first message is used to indicate that the receiving path of the target service is changed from the first receiving path to the second receiving path, the terminal may send the second message through the sending path corresponding to the first receiving path. For example, the terminal may send the second message through the uplink sending RLC entity corresponding to the source DRB, may also send the second message through the uplink sending RLC entity corresponding to the target DRB, and may also send the second message through the uplink sending RLC entities corresponding to the source DRB and the target DRB.
Further, the type of the RLC entity of the source path corresponding to the second message may be any one of an UM Mode (Unacknowledged Mode) and an AM Mode (Acknowledged Mode), so as to further improve transmission reliability of the second message.
In this embodiment, the timing when the first terminal sends the second message to the network side device may be after receiving the first message, that is, after the first terminal receives the message that the transmission path of the target service is changed, the first terminal may report the second message to the network side device. Since the second message is used to indicate the receiving state of the target service at the first transmission path by the first terminal, and the second message may be understood as data receiving state information, the first terminal reports the second message to the network side device, which may be understood as that the first terminal reports the data receiving state of the target service at the source receiving path to the network side device.
In this embodiment, when the transmission path of the target service is changed, the first terminal reports the data receiving state of the source receiving path to the network side device, so that the network side device can determine the data of the target service to be retransmitted according to the data receiving state of the first terminal, thereby effectively avoiding repeated data transmission.
Optionally, the second message is transmitted through at least one transmission path of the first transmission path and the second transmission path.
Optionally, the second message includes data packet number information of the target service, where the data packet number information of the target service is used to indicate a receiving state of the target service in the first transmission path by the first terminal.
In the embodiment, the receiving state of the first terminal to the target service in the first transmission path is indicated through the data packet number information of the target service, and the indicating mode of the receiving state has the characteristics of simplicity, intuition and clearness.
Optionally, the data packet number information of the target service includes any one of:
the number information of the first lost data packet of the first terminal on the first transmission path;
the number information of a data packet before a first lost data packet of the first transmission path of the first terminal;
the number information of a data packet subsequent to a first lost data packet of the first transmission path of the first terminal;
the number information of the data packet lost by the first terminal on the first transmission path;
and the number information of the data packet received by the first terminal on the first transmission path.
In this embodiment, the number information of the first missing data packet, the number information of the data packet preceding the first missing data packet, and the number information of the data packet following the first missing data packet may be understood as the number information of the first missing data packet. The first terminal may report only the number information of any of the above first lost data packets, and does not report the reception status information of other data packets except the number information of the first lost data packet, so that, for the network side device, all data packets may be retransmitted from the first lost data packet.
In this embodiment, the second message may be used to indicate the receiving status of the target service at the first transmission path by the first terminal, and may further include indication information of the first transmission path, for example, the second message may further include indication information of the first transmission path in addition to the data packet number information of the target service. In this way, the network side device can distinguish the data receiving state information reported by the first terminal as the data receiving state information for which first transmission path through the second message, so that the network side device can more accurately determine the data needing to be retransmitted on the second transmission path according to the second message.
Optionally, the indication information of the first transmission path includes at least one of a radio bearer identifier (e.g., DRB-1), a data flow identifier (e.g., QoS flow-1), a Session identifier (e.g., PDU Session-1), a logical channel identifier (e.g., LCID-1), a Cell Group identifier (e.g., MCG (Master Cell Group) or SCG (Secondary Cell Group)), and a multicast service identifier (e.g., TMGI-1).
Optionally, the method further includes:
and adjusting the variable of the data receiving window of the second transmission path according to the second message.
In this embodiment, the variable of the data reception window comprises at least one of an upper boundary and a lower boundary of the data reception window. The first terminal determines whether to receive the data packet according to a variable of the data receiving window, for example, a lower boundary of the data receiving window, so that the first terminal adjusts the variable of the data receiving window of the second transmission path according to the second message, the first terminal can successfully receive data of the target service sent by the network side device on the second transmission path, and the loss of the data packet is avoided.
Optionally, the adjusting, according to the second message, a variable of a data reception window of the second transmission path includes:
adjusting the number of the last data packet submitted to the upper protocol entity by the second transmission path to be a first number, wherein the first number is the number of the previous data packet of the first lost data packet or the number of the last data packet submitted to the upper protocol entity by the first terminal on the first transmission path; or,
and adjusting the number of the current first to-be-received data packet of the second transmission path to be a second number, wherein the second number is the number of the first lost data packet of the first terminal on the first transmission path.
In this embodiment, the first terminal may adjust the variable of the data receiving window of the second transmission path according to the number information of the first lost packet of the first transmission path, or may adjust the variable of the data receiving window of the second transmission path according to the number information of the last packet delivered to the upper layer protocol entity of the first transmission path.
Through the adjustment, the number of the data packet retransmitted by the network side equipment on the second transmission path can be located in the range of the data receiving window, so that the first terminal can be ensured to successfully receive the data packet retransmitted by the network side equipment on the second transmission path, and the loss of the data packet is avoided.
Optionally, after step 201, the method further includes:
and receiving a third message sent by the network side device, where the third message is used to indicate data packet number information corresponding to second data of the target service in the first transmission path.
In this embodiment, by receiving the third message sent by the network side device, the first terminal can know the number information corresponding to the data packet retransmitted by the network side device on the first transmission path through the third message, so that when the first terminal receives the data packet retransmitted by the network side device on the second transmission path, it can determine whether to receive or discard the data packet according to the number information corresponding to the first transmission path.
For example, assuming that the network side device sends the data packet 1/2/3 on the second transmission path and the data packet 1/2/3 has the number of 4/5/6 on the first transmission path, the third message is used to indicate the number information of the data packet 1/2/3 on the first transmission path, i.e., 4/5/6. In this way, the first terminal can know that the packet 1/2/3 transmitted by the network side device on the second transmission path corresponds to the packet 4/5/6 that was originally on the first transmission path.
It should be noted that, in the data processing method provided in the embodiment of the present application, the execution main body may be a data processing apparatus, or a control module in the data processing apparatus for executing the data processing method. In the embodiment of the present application, a data processing apparatus executes a data processing method as an example, and the data processing apparatus provided in the embodiment of the present application is described.
Fig. 3 is a structural diagram of a data processing apparatus according to an embodiment of the present application, and as shown in fig. 3, the data processing apparatus 300 is applied to a first terminal, and the data processing apparatus 300 includes:
a receiving module 301, configured to receive a first message sent by a network side device, where the first message is used to indicate that a transmission path of a target service is changed from a first transmission path to a second transmission path;
a processing module 302, configured to process the first data of the target service and then process the second data of the target service; the first data of the target service is data received by the first terminal on the first transmission path, and the second data of the target service is data received by the first terminal on the second transmission path.
Optionally, the processing module 302 includes:
and the first processing unit is used for processing the first data of the target service and delivering the first data to a high-layer protocol entity.
Optionally, the first processing unit is specifically configured to any one of:
reestablishing a Radio Link Control (RLC) entity of the first transmission path;
processing the first data of the target service through an RLC entity, and delivering the processed first data of the target service to a high-layer protocol entity;
reconstructing a Packet Data Convergence Protocol (PDCP) entity of the first transmission path;
and processing the first data of the target service through a PDCP entity, and delivering the processed first data of the target service to a high-layer protocol entity.
Optionally, the first processing unit is specifically configured to at least one of:
ignoring data which is not received by the first terminal on the first transmission path;
processing the data cached by the first terminal and submitting the data to a high-level protocol entity;
discarding a first lost packet of the first terminal on the first transmission path and a packet following the first lost packet;
and processing and delivering the data packet before the first lost data packet to a high-layer protocol entity.
Optionally, the second data of the target service includes any one of:
a first missing data packet of the first transmission path and a data packet following the first missing data packet by the first terminal;
data packets lost by the first terminal on the first transmission path;
n terminals, including the first terminal, an earliest data packet among first lost data packets of the first transmission path and data packets subsequent to the earliest data packet;
the latest data packet of the first lost data packets of the first transmission path and the data packets after the latest data packet are transmitted by the N terminals.
Optionally, the processing module 302 includes:
and the second processing unit is used for discarding the data packet meeting the preset condition in the second data of the target service.
Optionally, the data packet meeting the preset condition includes any one of the following items:
delivering the data packet to the high-layer protocol entity on the first transmission path;
the received data packet is ignored in the first transmission path.
Optionally, the first transmission path and the second transmission path are transmission paths of different radio bearers, respectively; or,
the first transmission path and the second transmission path are different transmission paths of the same radio bearer.
Optionally, the first transmission path is a transmission path of a unicast transmission mode, and the second transmission path is a transmission path of a multicast transmission mode; or,
the first transmission path is a transmission path of a multicast transmission mode, and the second transmission path is a transmission path of a unicast transmission mode.
Optionally, the first message further includes indication information of the target service, where the indication information includes at least one of a session identifier, a data stream identifier, and a multicast service identifier.
The data processing device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.
The data processing apparatus in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android operating system (Android), an iOS operating system, or other possible operating systems, which is not specifically limited in the embodiments of the present application.
The data processing apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 2, and achieve the same technical effect, and for avoiding repetition, details are not described here again.
Optionally, as shown in fig. 4, an embodiment of the present application further provides a communication device 600, which includes a processor 601, a memory 602, and a program or an instruction stored in the memory 602 and capable of being executed on the processor 601, for example, when the communication device 600 is a terminal, the program or the instruction is executed by the processor 601 to implement each process of the data processing method embodiment, and the same technical effect can be achieved, and details are not repeated here to avoid repetition.
Fig. 5 is a schematic hardware structure diagram of a first terminal for implementing an embodiment of the present application.
The first terminal 1000 includes, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.
Those skilled in the art will appreciate that the first terminal 1000 can further comprise a power supply (e.g., a battery) for supplying power to various components, and the power supply can be logically connected to the processor 1010 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The terminal structure shown in fig. 5 does not constitute a limitation of the first terminal, which may include more or less components than those shown, or combine some components, or a different arrangement of components, and will not be described again here.
It should be understood that in the embodiment of the present application, the input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, and the Graphics Processing Unit 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 may include two parts, a touch detection device and a touch controller. Other input devices 10072 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.
In this embodiment of the application, the radio frequency unit 1001 receives downlink data from a network side device and then processes the downlink data to the processor 1010; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 1001 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.
The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, and the like) required for at least one function, and the like. Further, the Memory 1009 may include a high-speed random access Memory and may also include a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable PROM (EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
Wherein, the radio frequency unit 1001 is configured to:
receiving a first message sent by a network side device, wherein the first message is used for indicating that a transmission path of a target service is changed from a first transmission path to a second transmission path;
a processor 1010 configured to:
processing the second data of the target service after processing the first data of the target service; the first data of the target service is data received by the first terminal on the first transmission path, and the second data of the target service is data received by the first terminal on the second transmission path.
Optionally, the processor 1010 is further configured to:
and processing the first data of the target service and delivering the first data to a high-layer protocol entity.
Optionally, the processor 1010 is further configured to:
reestablishing a Radio Link Control (RLC) entity of the first transmission path;
processing the first data of the target service through an RLC entity, and delivering the processed first data of the target service to a high-layer protocol entity;
reconstructing a Packet Data Convergence Protocol (PDCP) entity of the first transmission path;
and processing the first data of the target service through a PDCP entity, and delivering the processed first data of the target service to a high-layer protocol entity.
Optionally, the processor 1010 is further configured to at least one of:
ignoring data which is not received by the first terminal on the first transmission path;
processing the data cached by the first terminal and submitting the data to a high-level protocol entity;
discarding a first lost packet of the first terminal on the first transmission path and a packet following the first lost packet;
and processing and delivering the data packet before the first lost data packet to a high-layer protocol entity.
Optionally, the second data of the target service includes any one of:
a first missing data packet of the first transmission path and a data packet following the first missing data packet by the first terminal;
data packets lost by the first terminal on the first transmission path;
n terminals, including the first terminal, an earliest data packet among first lost data packets of the first transmission path and data packets subsequent to the earliest data packet;
the latest data packet of the first lost data packets of the first transmission path and the data packets after the latest data packet are transmitted by the N terminals.
Optionally, the processor 1010 is further configured to:
and discarding the data packet meeting the preset condition in the second data of the target service.
Optionally, the data packet meeting the preset condition includes any one of the following items:
delivering the data packet to the high-layer protocol entity on the first transmission path;
the received data packet is ignored in the first transmission path.
Optionally, the first transmission path and the second transmission path are transmission paths of different radio bearers, respectively; or,
the first transmission path and the second transmission path are different transmission paths of the same radio bearer.
Optionally, the first transmission path is a transmission path of a unicast transmission mode, and the second transmission path is a transmission path of a multicast transmission mode; or,
the first transmission path is a transmission path of a multicast transmission mode, and the second transmission path is a transmission path of a unicast transmission mode.
Optionally, the first message further includes indication information of the target service, where the indication information includes at least one of a session identifier, a data stream identifier, and a multicast service identifier.
In the embodiment of the application, under the condition that the transmission path of the data is changed, the first terminal processes the data received on the first transmission path first and then processes the data received on the second transmission path, so that when the transmission path of the target service is changed, the first terminal can be ensured to process the data of the target service in sequence according to the data receiving sequence of the target service, thereby reducing data loss and avoiding interruption of received data.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the data processing method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
Wherein the processor is the processor in the first terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the data processing method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.
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. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
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 solutions of the present application 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 application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (22)
1. A data processing method is applied to a first terminal, and is characterized by comprising the following steps:
receiving a first message sent by a network side device, wherein the first message is used for indicating that a transmission path of a target service is changed from a first transmission path to a second transmission path;
processing the second data of the target service after processing the first data of the target service; the first data of the target service is data received by the first terminal on the first transmission path, and the second data of the target service is data received by the first terminal on the second transmission path.
2. The method of claim 1, wherein the processing the first data of the target service comprises:
and processing the first data of the target service and delivering the first data to a high-layer protocol entity.
3. The method according to claim 2, wherein said processing and delivering the first data of the target service to a higher layer protocol entity comprises any one of:
reestablishing a Radio Link Control (RLC) entity of the first transmission path;
processing the first data of the target service through an RLC entity, and delivering the processed first data of the target service to a high-layer protocol entity;
reconstructing a Packet Data Convergence Protocol (PDCP) entity of the first transmission path;
and processing the first data of the target service through a PDCP entity, and delivering the processed first data of the target service to a high-layer protocol entity.
4. The method of claim 2, wherein the processing and delivering the first data of the target service to a higher layer protocol entity comprises at least one of:
ignoring data which is not received by the first terminal on the first transmission path;
processing the data cached by the first terminal and submitting the data to a high-level protocol entity;
discarding a first lost packet of the first terminal on the first transmission path and a packet following the first lost packet;
and processing and delivering the data packet before the first lost data packet to a high-layer protocol entity.
5. The method of claim 1, wherein the second data of the target service comprises any one of:
a first missing data packet of the first transmission path and a data packet following the first missing data packet by the first terminal;
data packets lost by the first terminal on the first transmission path;
n terminals, including the first terminal, an earliest data packet among first lost data packets of the first transmission path and data packets subsequent to the earliest data packet;
the latest data packet of the first lost data packets of the first transmission path and the data packets after the latest data packet are transmitted by the N terminals.
6. The method of claim 1, wherein the processing the second data of the target service comprises:
and discarding the data packet meeting the preset condition in the second data of the target service.
7. The method according to claim 6, wherein the data packet satisfying the preset condition comprises any one of the following:
delivering the data packet to the high-layer protocol entity on the first transmission path;
the received data packet is ignored in the first transmission path.
8. The method of claim 1, wherein the first transmission path and the second transmission path are transmission paths of different radio bearers, respectively; or,
the first transmission path and the second transmission path are different transmission paths of the same radio bearer.
9. The method according to claim 1, wherein the first transmission path is a transmission path of a unicast transmission scheme, and the second transmission path is a transmission path of a multicast transmission scheme; or,
the first transmission path is a transmission path of a multicast transmission mode, and the second transmission path is a transmission path of a unicast transmission mode.
10. The method of claim 1, wherein the first message further comprises indication information of the target service, and wherein the indication information comprises at least one of a session identifier, a data stream identifier, and a multicast service identifier.
11. A data processing apparatus applied to a first terminal, comprising:
a receiving module, configured to receive a first message sent by a network side device, where the first message is used to indicate that a transmission path of a target service is changed from a first transmission path to a second transmission path;
the processing module is used for processing the second data of the target service after processing the first data of the target service; the first data of the target service is data received by the first terminal on the first transmission path, and the second data of the target service is data received by the first terminal on the second transmission path.
12. The apparatus of claim 1, wherein the processing module comprises:
and the first processing unit is used for processing the first data of the target service and delivering the first data to a high-layer protocol entity.
13. The apparatus according to claim 12, wherein the first processing unit is specifically configured to any one of:
reestablishing a Radio Link Control (RLC) entity of the first transmission path;
processing the first data of the target service through an RLC entity, and delivering the processed first data of the target service to a high-layer protocol entity;
reconstructing a Packet Data Convergence Protocol (PDCP) entity of the first transmission path;
and processing the first data of the target service through a PDCP entity, and delivering the processed first data of the target service to a high-layer protocol entity.
14. The apparatus according to claim 12, wherein the first processing unit is specifically configured to at least one of:
ignoring data which is not received by the first terminal on the first transmission path;
processing the data cached by the first terminal and submitting the data to a high-level protocol entity;
discarding a first lost packet of the first terminal on the first transmission path and a packet following the first lost packet;
and processing and delivering the data packet before the first lost data packet to a high-layer protocol entity.
15. The apparatus of claim 11, wherein the second data of the target service comprises any one of:
a first missing data packet of the first transmission path and a data packet following the first missing data packet by the first terminal;
data packets lost by the first terminal on the first transmission path;
n terminals, including the first terminal, an earliest data packet among first lost data packets of the first transmission path and data packets subsequent to the earliest data packet;
the latest data packet of the first lost data packets of the first transmission path and the data packets after the latest data packet are transmitted by the N terminals.
16. The apparatus of claim 11, wherein the processing module comprises:
and the second processing unit is used for discarding the data packet meeting the preset condition in the second data of the target service.
17. The apparatus according to claim 16, wherein the data packet satisfying the preset condition comprises any one of:
delivering the data packet to the high-layer protocol entity on the first transmission path;
the received data packet is ignored in the first transmission path.
18. The method of claim 11, wherein the first transmission path and the second transmission path are transmission paths of different radio bearers, respectively; or,
the first transmission path and the second transmission path are different transmission paths of the same radio bearer.
19. The apparatus according to claim 11, wherein the first transmission path is a transmission path of a unicast transmission scheme, and the second transmission path is a transmission path of a multicast transmission scheme; or,
the first transmission path is a transmission path of a multicast transmission mode, and the second transmission path is a transmission path of a unicast transmission mode.
20. The apparatus of claim 11, wherein the first message further comprises indication information of the target service, and wherein the indication information comprises at least one of a session identifier, a data stream identifier, and a multicast service identifier.
21. A first terminal, characterized in that it comprises a processor, a memory and a program or instructions stored on said memory and executable on said processor, said program or instructions, when executed by said processor, implementing the steps of the data processing method according to any one of claims 1 to 10.
22. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by the processor, implement the steps of the data processing method according to any one of claims 1 to 10.
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| PCT/CN2021/106222 WO2022012583A1 (en) | 2020-07-14 | 2021-07-14 | Data processing method, data processing apparatus, and first terminal |
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