CN108811087B - Data processing method and terminal - Google Patents

Data processing method and terminal Download PDF

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Publication number
CN108811087B
CN108811087B CN201710302319.3A CN201710302319A CN108811087B CN 108811087 B CN108811087 B CN 108811087B CN 201710302319 A CN201710302319 A CN 201710302319A CN 108811087 B CN108811087 B CN 108811087B
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harq process
data
terminal
sent
cache
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CN108811087A (en
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杨晓东
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1874Buffer management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource

Abstract

The invention provides a data processing method and a terminal, and relates to the technical field of communication. The data processing method comprises the following steps: acquiring at least one hybrid automatic repeat request (HARQ) process distributed for scheduling-free resources; when a first HARQ process in at least one HARQ process is used for data transmission, processing data in a cache of the first HARQ process; the data processing mode comprises the following steps: at least one of clearing the data in the cache, reserving the data in the cache, and updating the data in the cache. According to the scheme, the data in the cache of the HARQ process adopted by the scheduling-free resources are processed, and then the data are sent to the base station by utilizing the HARQ process, so that a 5G data transmission mode is perfected, the reliability and effectiveness of data transmission are ensured, and the reliability of network communication is ensured.

Description

Data processing method and terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data processing method and a terminal.
Background
Currently, in a Long Term Evolution (LTE) system, when a terminal (User Equipment, UE for short) sends uplink data, the terminal usually sends the uplink data on an uplink resource authorized by the base station through real-time scheduling based on an uplink scheduling authorization manner of the base station. That is, before transmitting uplink data, the current UE needs to receive an uplink grant (UL-grant) message transmitted by the base station, and transmit the uplink data on the uplink resource indicated by the uplink grant message. In this way, the UE needs to receive the uplink grant message sent by the base station before sending the uplink data, which may cause a large data delay and a large signaling overhead.
In order to reduce the delay and data overhead, for a fifth Generation (5Generation, abbreviated as 5G) mobile communication system, it is proposed to support the UE to transmit uplink data in a manner of avoiding uplink scheduling, i.e. the UE can transmit uplink data without an uplink grant message of PDCCH scheduling transmitted by the base station.
The scheduling-free mode may be performed in a semi-persistent scheduling (SPS) mode in LTE, or may be performed in an SPS enhanced mode, where the SPS enhanced mode refers to that RRC not only configures a scheduling-free resource period of the UE, but also configures all time-frequency resource positions, modulation and coding modes, and the like of the UE and the network side by Radio Resource Control (RRC). And simultaneously, SPS transmission can be scheduled and activated without a Physical Downlink Control Channel (PDCCH).
Hybrid Automatic Repeat reQuest (HARQ) supports both synchronous HARQ and asynchronous HARQ in LTE. Synchronous HARQ means that a HARQ process transmission and retransmission occur at a fixed time, and since the time of retransmission is fixed relative to the new transmission, there is no need to transmit the HARQ process number; asynchronous HARQ means that the retransmission time of one HARQ process is not fixed, and therefore, the process number of HARQ for one data transmission needs to be notified. In LTE, synchronous HARQ is used for uplink transmission supporting SPS.
In NR, asynchronous HARQ is also supported in the uplink and downlink, and in current scheduling-free resources (i.e., SPS), the problem of which HARQ process number and how to use the reserved SPS resources is also discussed. As shown in fig. 1, that is, a HARQ process number is allocated in advance for each SPS resource, and when new data needs to be transmitted by the UE, the corresponding process may be used for transmission on the corresponding SPS resource.
In discussing how long this HARQ process can be used, one implementation is to set a timer (timer), as shown in fig. 2, i.e. one timer for each HARQ process, and only after this timer, this HARQ process can be reused. However, this approach is very inflexible, e.g., the timer for HARQ process 1 corresponding between SPS resource 1 and SPS resource 2 has not timed out, at which time the base station cannot schedule data using HARQ process 1.
SPS repeat transmissions defined for the physical layer may have the following problems: as shown in fig. 3, if the configuration K is 4 transmissions, where a dashed box represents grant-free new transmission, a solid box represents grant-free retransmission, a grant-free period is 2 slots (slots), and the UE does not have the capability of transmitting two Transport Blocks (TBs). Then if the transmission is continuous and the last transmission was not correct there is a problem of continuing with K retransmissions or triggering a new transmission.
Therefore, in the prior art, for 5G communication, how to reasonably use grant-free resources for data transmission by a terminal is not agreed, so that the reliability of network communication cannot be guaranteed.
Disclosure of Invention
The embodiment of the invention provides a data processing method and a terminal, and aims to solve the problem that how to reasonably use grant-free resources to carry out data transmission by the terminal is not agreed in 5G communication, and the reliability of network communication cannot be guaranteed.
In order to solve the above technical problem, an embodiment of the present invention provides a data processing method, including:
acquiring at least one hybrid automatic repeat request (HARQ) process distributed for scheduling-free resources;
when a first HARQ process in at least one HARQ process is used for data transmission, processing data in a cache of the first HARQ process;
the data processing mode comprises the following steps: at least one of clearing the data in the cache, reserving the data in the cache, and updating the data in the cache.
An embodiment of the present invention further provides a terminal, including:
an obtaining module, configured to obtain at least one hybrid automatic repeat request HARQ process allocated for a scheduling-free resource;
the processing module is used for processing the data in the cache of the first HARQ process when the first HARQ process in at least one HARQ process is used for data transmission;
the data processing mode comprises the following steps: at least one of clearing the data in the cache, reserving the data in the cache, and updating the data in the cache.
The invention has the beneficial effects that:
according to the scheme, the data in the cache of the HARQ process adopted by the scheduling-free resources are processed, and then the data are sent to the base station by utilizing the HARQ process, so that a 5G data transmission mode is perfected, the reliability and effectiveness of data transmission are ensured, and the reliability of network communication is ensured.
Drawings
FIG. 1 is a diagram illustrating the relationship between SPS resources and HARQ process numbers;
fig. 2 is a diagram illustrating the usage of a timer for a HARQ process;
fig. 3 is a schematic diagram illustrating transmission relationships of different PRBs when the terminal capability is limited;
FIG. 4 is a flow chart illustrating a data processing method according to an embodiment of the invention;
fig. 5 is a diagram illustrating a first usage process of HARQ process 1;
fig. 6 is a diagram illustrating a second usage process of HARQ process 1;
FIG. 7 is a diagram illustrating a first allowable time setting manner of retransmission scheduling;
FIG. 8 is a diagram illustrating a second scheme of setting the allowable time for retransmission scheduling;
fig. 9 is a diagram illustrating a third usage process of HARQ process 1;
fig. 10 is a block diagram of a terminal according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The invention provides a data processing method and a terminal aiming at the problem that how to reasonably use grant-free resources to carry out data transmission by a terminal and the reliability of network communication cannot be guaranteed in 5G communication.
As shown in fig. 4, an embodiment of the present invention provides a data processing method, including:
step 401, acquiring at least one hybrid automatic repeat request HARQ process allocated for scheduling-free resources;
it should be noted that, the data processing method is applied to a terminal side, in this embodiment, a network side configures at least one HARQ process for a scheduling-free resource for the terminal in advance, and in this embodiment, the scheduling-free resource is a resource that does not require Physical Downlink Control Channel (PDCCH) scheduling for each transmission, and may be a semi-persistent scheduling (SPS) resource similar to LTE; or the time-frequency resource position, modulation and coding mode, etc. of the UE and the network side may all be configured by Radio Resource Control (RRC), and the UE may perform data transmission on the resources configured by the network. The at least one HARQ process acquired by the terminal may be notified by the network side, or may be stored by the terminal itself according to a network agreement.
Step 402, when a first HARQ process in at least one HARQ process is used for data transmission, processing data in a cache of the first HARQ process;
the data processing mode comprises the following steps: at least one of clearing the data in the cache, reserving the data in the cache, and updating the data in the cache.
It should be noted that, when the terminal performs data transmission, one HARQ process is selected, and data is transmitted on the SPS resource, where the first HARQ process refers to an HARQ process used by the terminal for data transmission.
After processing the data in the buffer of the HARQ process, the terminal sends the data in the buffer to the base station at a proper time, so that the base station performs subsequent communication processing according to the data.
The above implementation is mainly described in detail in three aspects below.
First, the HARQ process period of SPS binding is used to determine the specific processing procedure
Specifically, the implementation manner of step 402 is:
and processing the data in the cache of the first HARQ process when the next HARQ process period of the current HARQ process period of the first HARQ process is started or the current HARQ process period of the first HARQ process is started.
It should be noted that, in this way, the network configures at least one HARQ process for the SPS resource for the terminal, and the HARQ process corresponding to the SPS resource is already allocated. After the terminal sends new data on a certain resource of one HARQ process period, in the next HARQ process period, the HARQ process (i.e. the first HARQ process) sending the new data is reused, and at this time, the terminal may process the data in the buffer of the HARQ process in the following manner.
1. And clearing the data in the buffer of the first HARQ process.
And the terminal directly clears the data in the buffer of the HARQ process when the next HARQ process period starts no matter whether the data is successfully sent or not. And when new data is sent, directly utilizing the HARQ process to send the new data.
2. Judging whether new data needs to be sent in a cache of the terminal or not, and acquiring a judgment result; and processing the data in the cache of the first HARQ process according to the judgment result.
The first implementation manner for judging whether new data needs to be sent in the cache of the terminal is as follows:
judging whether new data in a cache of a terminal needs to be sent by using the first HARQ process;
it should be noted that, when there is new data to be sent in the buffer of the terminal, but the new data cannot be sent by using the first HARQ process, it cannot be considered that there is new data to be sent at this time, and it is only when the new data in the buffer of the terminal needs to be sent by using the first HARQ process that it is determined that there is new data to be sent, at this time, the data in the buffer of the first HARQ process needs to be processed.
The second implementation manner for judging whether new data needs to be sent in the cache of the terminal is as follows:
and judging whether new data in the buffer memory of the terminal is to be sent by using the current scheduling-free resource.
It should be noted that, when there is new data to be sent in the buffer of the terminal, but the new data cannot be sent using the current scheduling-free resource, it cannot be considered that there is new data to be sent at this time, and it is only determined that there is new data to be sent when the new data in the buffer of the terminal needs to be sent using the current scheduling-free resource, and at this time, the data in the buffer of the first HARQ process needs to be processed.
And when the next HARQ process period begins, the terminal determines what kind of processing is carried out on the data in the cache of the first HARQ process according to whether new data is sent or not.
Optionally, when the determination result is that there is no new data to be sent, the step of processing the data in the buffer of the first HARQ process includes:
clearing the data in the cache of the first HARQ process; or
And reserving the data in the buffer of the first HARQ process.
It should be noted that, in this case, when the data in the buffer of the first HARQ process is emptied, the terminal may not detect the retransmission scheduling of the base station on the original data of the first HARQ process; when the data in the buffer of the first HARQ process is reserved, the terminal needs to perform retransmission scheduling on the original data of the first HARQ process, and the specific implementation manner is as follows: judging whether retransmission scheduling of the first HARQ process sent by the base station is detected; and if the retransmission scheduling of the first HARQ process is detected, sending the data reserved in the cache of the first HARQ process to a base station. In this case, when there is retransmission scheduling, the terminal will send the data in the buffer of the first HARQ process to the base station again, so as to ensure that the base station can receive the data as far as possible.
Optionally, when the determination result indicates that there is new data to be sent, the step of processing the data in the buffer of the first HARQ process includes:
clearing the data in the cache of the first HARQ process, and storing the new data into the cache of the first HARQ process; or
And replacing the data in the cache of the first HARQ process by the new data.
It should be noted that, the above process of replacing the data in the buffer of the first HARQ process with the new data may be regarded as: directly assigning the used memory cells in the cache with new data; or, the memory cells not used in the cache are filled with new data, and when the memory cells not used are not enough to store all new data, the memory cells used in the cache are assigned with new data.
It should be noted that, the process of storing new data in the cache or replacing the data in the cache with the new data may be regarded as updating the data in the cache.
In this case, it is indicated that the terminal has new data to transmit, and at this time, normal transmission of the new data needs to be ensured, so that the original data in the buffer of the first HARQ process is not retransmitted regardless of whether the base station successfully receives the data; and when new data is transmitted, the terminal sends the new data in the cache of the first HARQ process to the base station.
For example, as shown in fig. 5, 4 HARQ processes are configured for the terminal to perform data transmission on SPS resources (i.e., the scheduling-free resources described above), and the HARQ processes corresponding to the SPS resources are already allocated, when the terminal uses HARQ process 1 to send new data on SPS resource 1, the base station does not correctly receive the new data, and the terminal receives the scheduling retransmission of HARQ process 1 in HARQ process period T1 and performs data retransmission; the SPS resource 5 corresponds to the HARQ process 1 again, if the terminal does not receive the scheduling retransmission of the HARQ process 1 at this time slot, new transmission of the HARQ process 1 is performed, and at this time, the terminal may select to empty data (i.e., retransmission data) in the buffer of the HARQ process 1; further, if the terminal has new data transmission at this time, the terminal transmits new data by using HARQ process 1.
Secondly, the terminal retransmits at the corresponding position
In this case, if the data of the terminal is not successfully transmitted, the data needs to be retransmitted at a fixed resource location.
1. If the data in the cache of the HARQ process is not successfully transmitted in the current HARQ process period of the first HARQ process, retransmitting the data in the cache of the first HARQ process in the next HARQ process period;
wherein the unsuccessful transmission of the data in the buffer of the first HARQ process comprises: the terminal receives a feedback message that the data sent by the base station is not successfully received or the terminal does not receive a feedback message that the data sent by the base station is successfully received.
It should be noted that, in this case, the terminal needs to keep the data in the buffer of the first HARQ process. And when the terminal does not successfully transmit the data by using the first HARQ process, retransmitting the data in the buffer of the first HARQ process at the position of the next HARQ process period where the first HARQ process is used.
2. Optionally, the implementation manner of step 402 is:
when the next HARQ process period of the current HARQ process period where the first HARQ process is located starts or the current HARQ process period where the first HARQ process is located, judging whether new data needs to be sent in a buffer of a terminal;
if new data needs to be sent, replacing the data in the cache of the first HARQ process by the new data;
and if no new data needs to be sent, reserving the data in the buffer of the first HARQ process.
The first implementation manner for judging whether new data needs to be sent in the cache of the terminal is as follows:
judging whether new data in a cache of a terminal needs to be sent by using the first HARQ process;
it should be noted that, when there is new data to be sent in the buffer of the terminal, but the new data cannot be sent by using the first HARQ process, it cannot be considered that there is new data to be sent at this time, and it is only when the new data in the buffer of the terminal needs to be sent by using the first HARQ process that it is determined that there is new data to be sent, at this time, the data in the buffer of the first HARQ process needs to be processed.
The second implementation manner for judging whether new data needs to be sent in the cache of the terminal is as follows:
and judging whether new data in the buffer memory of the terminal is to be sent by using the current scheduling-free resource.
It should be noted that, when there is new data to be sent in the buffer of the terminal, but the new data cannot be sent using the current scheduling-free resource, it cannot be considered that there is new data to be sent at this time, and it is only determined that there is new data to be sent when the new data in the buffer of the terminal needs to be sent using the current scheduling-free resource, and at this time, the data in the buffer of the first HARQ process needs to be processed.
At this time, the terminal needs to send the data in the buffer of the first HARQ process to the base station.
In this case, the terminal is implemented to determine whether to perform retransmission of data according to whether there is new data transmission; that is, even when the retransmission time of the data in the buffer of the first HARQ process arrives, the first HARQ process is used to transmit new data as long as there is new data to be transmitted, and the terminal retransmits the data in the buffer of the first HARQ process to the base station only when there is no new data to be transmitted.
For example, as shown in fig. 6, 4 HARQ processes are configured for the terminal to perform data transmission on SPS resources, and the HARQ process corresponding to the SPS resources is already allocated, when the terminal uses HARQ process 1 to send new data on SPS resource 1, the base station does not correctly receive the new data, and the terminal receives the scheduling retransmission of HARQ process 1 in HARQ process period T1, and performs data retransmission; at the SPS resource 5, the HARQ process 1 is again corresponding to, here, the retransmission time of the HARQ process 1, and at this time, as long as there is no new data transmission, even if the scheduling retransmission of the HARQ process 1 is not received, the retransmission of the HARQ process 1 is also performed.
Further, if there is no new data to be sent, the step of sending the data in the buffer of the first HARQ process to the base station includes:
judging whether to allow retransmission of the first HARQ process;
and if the retransmission of the first HARQ process is allowed, sending the data in the cache of the first HARQ process to a base station.
Judging whether the time slot is within the preset time slot of the first HARQ process of the next HARQ process period, wherein retransmission is not allowed;
if the time is not within the preset time period, sending the data in the cache of the first HARQ process to a base station;
the preset time period is a preset time period before the starting time of the next HARQ process cycle of the first HARQ process, or the preset time period is a preset time period after the retransmission time of the current HARQ process cycle of the first HARQ process.
It should be noted that, before data retransmission is performed at a retransmission time, it is first determined whether retransmission is allowed at the time, if retransmission is not allowed, retransmission of data cannot be performed, and if retransmission is allowed, retransmission data may be transmitted to the base station.
As shown in fig. 7 and 8, 4 HARQ processes are configured for the terminal to perform data transmission on SPS resources, and the HARQ process corresponding to the SPS resources is already allocated, after the terminal uses HARQ process 1 to send new data on SPS resource 1, the base station does not correctly receive the new data, and the terminal receives scheduling retransmission of HARQ process 1 in HARQ process period T1 and performs data retransmission; the SPS resource 5 time corresponds to the HARQ process 1, which is the retransmission time of the HARQ process 1, where in fig. 7, a retransmission disallowed time period (T2) is set for the SPS resource 5 time before the SPS resource 5 time, and if a retransmission occurs in this time period, the retransmission of the HARQ process 1 cannot be performed at the SPS resource 5 time; fig. 8 shows that the retransmission disallowance timer is set at a retransmission before the SPS resource 5 time (T2), and when the SPS resource 5 time is within the timing time of the timer, the retransmission of HARQ process 1 is not performed at the SPS resource 5 time.
Thirdly, aiming at the processing situation that the terminal capability is limited
Specifically, the implementation manner of step 402 is:
in the HARQ process period of the first HARQ process, when the first resource is used for data transmission, whether new data needs to be sent in a cache of the terminal is judged at the moment of the second resource;
if new data needs to be sent, storing the new data into a newly determined cache of a second HARQ process;
and if no new data needs to be sent, reserving the data in the buffer of the first HARQ process.
Further, if there is no new data to be sent, the data processing method further includes:
and sending the data in the buffer of the first HARQ process to a base station on the first resource.
Further, if there is new data to be sent, the data processing method further includes:
and sending the new data in the newly determined buffer of the second HARQ process to the base station on the second resource.
It should be noted that, because it is considered that the terminal does not have the capability of transmitting two Transport Blocks (TBs) in one timeslot, when the terminal has new data to transmit in the HARQ process period of the first HARQ process, the terminal cannot transmit data by using the first HARQ process, and the terminal needs to reselect another HARQ process to transmit new data.
For example, as shown in fig. 9, the base station configures SPS resources for the terminal on different subframes and Physical Resource Blocks (PRBs), and configures a corresponding HARQ process for each SPS. Wherein, the dashed line box represents grant-free (i.e. SPS resource) new transmission, and the solid line box represents grant-free retransmission. When the terminal performs new transmission on SPS resource 1 by adopting HARQ process 1, the terminal also needs to perform 3 times of retransmission of HARQ process 1 at the corresponding position, when the terminal has new data to be sent at the moment of SPS resource 2, the terminal does not have the capability of transmitting two TBs at one moment, so that the terminal reserves the retransmission data in HARQ process 1, transmits the new data by adopting the configured HARQ process 2, and transmits the new data at the moment of SPS resource 2; the terminal may repeat the data transmission on SPS resource 1 if the terminal has no new data to transmit.
In the embodiment of the invention, the data in the cache of the HARQ process adopted by the scheduling-free resource is processed according to different conditions, and then the data is sent to the base station at corresponding time, so that a 5G data transmission mode is perfected, the reliability and the effectiveness of data transmission are ensured, and the reliability of network communication is ensured.
As shown in fig. 10, an embodiment of the present invention provides a terminal, including:
an obtaining module 1001 configured to obtain at least one HARQ process for scheduling-free resource allocation;
a processing module 1002, configured to process data in a buffer of a first HARQ process when data transmission is performed by using the first HARQ process in at least one HARQ process;
the data processing mode comprises the following steps: at least one of clearing the data in the cache, reserving the data in the cache, and updating the data in the cache.
Optionally, the processing module 1002 is configured to:
a first processing sub-module, configured to process the data in the buffer of the first HARQ process when a next HARQ process period of a current HARQ process period in which the first HARQ process is located starts or when the current HARQ process period in which the first HARQ process is located starts.
Optionally, the first processing sub-module is configured to:
and clearing the data in the buffer of the first HARQ process.
Optionally, the first processing sub-module includes:
the judging unit is used for judging whether new data needs to be sent in the cache of the terminal and acquiring a judging result;
and the processing unit is used for processing the data in the cache of the first HARQ process according to the judgment result.
Further, when the determination result is that no new data needs to be sent, the processing unit is configured to:
and clearing the data in the buffer of the first HARQ process.
Further, when the determination result is that no new data needs to be sent, the processing unit is configured to:
and reserving the data in the buffer of the first HARQ process.
Optionally, the terminal further includes:
the judging module is used for judging whether the retransmission scheduling of the first HARQ process sent by the base station is detected;
a first sending module, configured to send, to a base station, data reserved in the cache of the first HARQ process if retransmission scheduling of the first HARQ process is detected.
Further, when the determination result indicates that new data needs to be sent, the processing unit is configured to:
clearing the data in the cache of the first HARQ process, and storing the new data into the cache of the first HARQ process; or
And replacing the data in the cache of the first HARQ process by the new data.
Further, when the data in the cache is retained, the terminal further includes:
a second sending module, configured to, if data in the buffer of the HARQ process is not successfully transmitted in the current HARQ process period in which the first HARQ process is located, resend the data in the buffer of the first HARQ process in a next HARQ process period;
wherein the unsuccessful transmission of the data in the buffer of the first HARQ process comprises: the terminal receives a feedback message that the data sent by the base station is not successfully received or the terminal does not receive a feedback message that the data sent by the base station is successfully received.
Optionally, the processing module 1002 includes:
a first determining sub-module, configured to determine whether new data needs to be sent in a buffer of a terminal when a next HARQ process period of a current HARQ process period in which the first HARQ process is located starts or when the current HARQ process period in which the first HARQ process is located starts;
a second processing sub-module, configured to replace, if new data needs to be sent, the data in the cache of the first HARQ process with the new data;
and the third processing submodule is used for reserving the data in the cache of the first HARQ process if no new data needs to be sent.
Optionally, the terminal further includes:
and a third sending module, configured to send the data in the buffer of the first HARQ process to a base station.
Further, if there is no new data to be sent, the third sending module includes:
a second judgment submodule, configured to judge whether to allow retransmission of the first HARQ process;
and the sending submodule is used for sending the data in the cache of the first HARQ process to a base station if the retransmission of the first HARQ process is allowed.
Optionally, the processing module 1002 includes:
a third determining sub-module, configured to determine whether new data needs to be sent in a cache of the terminal at a time of a second resource when the first resource is used for data transmission in an HARQ process period of the first HARQ process;
the fourth processing submodule is used for storing new data into a newly determined cache of the second HARQ process if the new data needs to be sent;
and a fifth processing sub-module, configured to reserve the data in the buffer of the first HARQ process if there is no new data to send.
Further, if there is no new data to be sent, the terminal further includes:
and a fourth sending module, configured to send, on the first resource, the data in the buffer of the first HARQ process to the base station.
Further, if there is new data to be sent, the terminal further includes:
and a fifth sending module, configured to send, to the base station, the new data in the newly determined buffer of the second HARQ process on the second resource.
Specifically, the manner of determining whether there is new data to be sent in the cache of the terminal is as follows:
judging whether new data in a cache of a terminal needs to be sent by using the first HARQ process; or
And judging whether new data in the buffer memory of the terminal is to be sent by using the current scheduling-free resource.
It should be noted that the terminal embodiment is a terminal corresponding to the method described above, and all implementations of the method described above are applicable to the terminal embodiment, and the same technical effects as those of the method embodiment can be achieved.
Fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present invention. Specifically, the terminal in fig. 11 may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), or a vehicle-mounted computer.
The terminal in fig. 11 includes a Radio Frequency (RF) circuit 1110, a memory 1120, an input unit 1130, a display unit 1140, a processor 1150, an audio circuit 1160, a wifi (wireless fidelity) module 1170, and a power supply 1180.
The input unit 1130 may be used to receive numeric or character information input by a user and generate signal inputs related to user settings and function control of the mobile terminal, among others. Specifically, in the embodiment of the present invention, the input unit 1130 may include a touch panel 1131. The touch panel 1131, also referred to as a touch screen, can collect touch operations of a user (for example, operations of the user on the touch panel 1131 by using a finger, a stylus pen, or any other suitable object or accessory) thereon or nearby, and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 1131 may include two parts, namely, 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, and sends the touch point coordinates to the processor 1150, and can receive and execute commands sent by the processor 1150. In addition, the touch panel 1131 can be implemented by using various types, such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1131, the input unit 1130 may also include other input devices 1132, and the other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
Among other things, the display unit 1140 may be used to display information input by a user or information provided to the user and various menu interfaces of the mobile terminal. The display unit 1140 may include a display panel 1141, and optionally, the display panel 1141 may be configured in the form of an LCD or an Organic Light-Emitting Diode (OLED).
It should be noted that the touch panel 1131 may cover the display panel 1141 to form a touch display screen, and when the touch display screen detects a touch operation thereon or nearby, the touch display screen is transmitted to the processor 1150 to determine the type of the touch event, and then the processor 1150 provides a corresponding visual output on the touch display screen according to the type of the touch event.
The touch display screen comprises an application program interface display area and a common control display area. The arrangement modes of the application program interface display area and the common control display area are not limited, and can be an arrangement mode which can distinguish two display areas, such as vertical arrangement, left-right arrangement and the like. The application interface display area may be used to display an interface of an application. Each interface may contain at least one interface element such as an icon and/or widget desktop control for an application. The application interface display area may also be an empty interface that does not contain any content. The common control display area is used for displaying controls with high utilization rate, such as application icons like setting buttons, interface numbers, scroll bars, phone book icons and the like.
The processor 1150 is a control center of the mobile terminal, connects various parts of the whole mobile phone by using various interfaces and lines, and executes various functions and processes data of the mobile terminal by running or executing software programs and/or modules stored in the first memory 1121 and calling data stored in the second memory 1122, thereby performing overall monitoring of the mobile terminal. Optionally, processor 1150 may include one or more processing units.
In this embodiment of the present invention, the processor 1150 is configured to obtain at least one HARQ process for scheduling-free resource allocation by invoking software programs and/or modules stored in the first memory 1121 and/or data stored in the second memory 1122; when a first HARQ process in at least one HARQ process is used for data transmission, processing data in a cache of the first HARQ process;
the data processing mode comprises the following steps: at least one of clearing the data in the cache, reserving the data in the cache, and updating the data in the cache.
Optionally, the processor 1150 is further configured to: and processing the data in the cache of the first HARQ process when the next HARQ process period of the current HARQ process period of the first HARQ process is started or the current HARQ process period of the first HARQ process is started.
Optionally, the processor 1150 is further configured to: and clearing the data in the buffer of the first HARQ process.
Optionally, the processor 1150 is further configured to: judging whether new data needs to be sent in a cache of the terminal or not, and acquiring a judgment result; and processing the data in the cache of the first HARQ process according to the judgment result.
Optionally, when the determination result is that there is no new data to be sent, the processor 1150 is further configured to: and clearing the data in the buffer of the first HARQ process.
Optionally, when the determination result is that there is no new data to be sent, the processor 1150 is further configured to: and reserving the data in the buffer of the first HARQ process.
Optionally, the processor 1150 is further configured to: judging whether retransmission scheduling of the first HARQ process sent by the base station is detected; and if the retransmission scheduling of the first HARQ process is detected, sending the data reserved in the cache of the first HARQ process to a base station.
Optionally, when the determination result is that there is new data to be sent, the processor 1150 is further configured to: clearing the data in the cache of the first HARQ process, and storing the new data into the cache of the first HARQ process; or replacing the data in the buffer of the first HARQ process with the new data.
Optionally, while holding the data in the cache, the processor 1150 is further configured to: if the data in the cache of the HARQ process is not successfully transmitted in the current HARQ process period of the first HARQ process, retransmitting the data in the cache of the first HARQ process in the next HARQ process period;
wherein the unsuccessful transmission of the data in the buffer of the first HARQ process comprises: the terminal receives a feedback message that the data sent by the base station is not successfully received or the terminal does not receive a feedback message that the data sent by the base station is successfully received.
Optionally, the processor 1150 is further configured to: when the next HARQ process period of the current HARQ process period where the first HARQ process is located starts or the current HARQ process period where the first HARQ process is located, judging whether new data needs to be sent in a buffer of a terminal; if new data needs to be sent, replacing the data in the cache of the first HARQ process by the new data; and if no new data needs to be sent, reserving the data in the buffer of the first HARQ process.
Optionally, the processor 1150 is further configured to: and sending the data in the buffer of the first HARQ process to a base station.
Optionally, when there is no new data to send, the processor 1150 is further configured to: judging whether to allow retransmission of the first HARQ process; and if the retransmission of the first HARQ process is allowed, sending the data in the cache of the first HARQ process to a base station.
Optionally, the processor 1150 is further configured to: in the HARQ process period of the first HARQ process, when the first resource is used for data transmission, whether new data needs to be sent in a cache of the terminal is judged at the moment of the second resource; if new data needs to be sent, storing the new data into a newly determined cache of a second HARQ process; and if no new data needs to be sent, reserving the data in the buffer of the first HARQ process.
Optionally, if no new data needs to be sent, the processor 1150 is further configured to: and sending the data in the buffer of the first HARQ process to a base station on the first resource.
Optionally, if there is new data to send, the processor 1150 is further configured to: and sending the new data in the newly determined buffer of the second HARQ process to the base station on the second resource.
Optionally, the processor 1150 is further configured to: judging whether new data in a cache of a terminal needs to be sent by using the first HARQ process; or
And judging whether new data in the buffer memory of the terminal is to be sent by using the current scheduling-free resource.
The terminal according to the embodiment of the present invention can implement each process implemented by the terminal in the foregoing embodiments, and is not described herein again to avoid repetition.
In the terminal of the embodiment of the present invention, at least one HARQ process for scheduling-free resource allocation is obtained through the processor 1150; when a first HARQ process in at least one HARQ process is used for data transmission, processing data in a cache of the first HARQ process; therefore, the 5G data transmission mode is improved, the reliability and the effectiveness of data transmission are ensured, and the reliability of network communication is ensured.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. 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 terminal that comprises the element.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims (18)

1. A data processing method, comprising:
acquiring at least one hybrid automatic repeat request (HARQ) process distributed for scheduling-free resources;
when a first HARQ process in at least one HARQ process is used for data transmission, processing data in a cache of the first HARQ process;
the step of processing the data in the buffer of the first HARQ process when the first HARQ process of the at least one HARQ process is used for data transmission includes:
in the HARQ process period of the first HARQ process, when the first resource is used for data transmission, whether new data needs to be sent in a cache of the terminal is judged at the moment of the second resource;
if new data needs to be sent, storing the new data into a newly determined cache of a second HARQ process;
if no new data needs to be sent, reserving the data in the cache of the first HARQ process;
and the second resource is used for sending the new data in the newly determined buffer of the second HARQ process to the base station.
2. The data processing method of claim 1, further comprising:
judging whether retransmission scheduling of the first HARQ process sent by the base station is detected;
and if the retransmission scheduling of the first HARQ process is detected, sending the data reserved in the cache of the first HARQ process to a base station.
3. The data processing method according to claim 1, wherein when the data in the cache is retained, the data processing method further comprises:
if the data in the cache of the HARQ process is not successfully transmitted in the current HARQ process period of the first HARQ process, retransmitting the data in the cache of the first HARQ process in the next HARQ process period;
wherein the unsuccessful transmission of the data in the buffer of the first HARQ process comprises: the terminal receives a feedback message that the data sent by the base station is not successfully received or the terminal does not receive a feedback message that the data sent by the base station is successfully received.
4. The data processing method of claim 1, wherein if no new data needs to be sent, the data processing method further comprises:
and sending the data in the buffer of the first HARQ process to a base station on the first resource.
5. The data processing method according to claim 1, wherein the manner of determining whether there is new data to be sent in the buffer of the terminal is as follows:
judging whether new data in a cache of a terminal needs to be sent by using the first HARQ process; or
And judging whether new data in the buffer memory of the terminal is to be sent by using the current scheduling-free resource.
6. A data processing method, comprising:
acquiring at least one hybrid automatic repeat request (HARQ) process distributed for scheduling-free resources;
when a first HARQ process in at least one HARQ process is used for data transmission, processing data in a cache of the first HARQ process;
the step of processing the data in the buffer of the first HARQ process when the first HARQ process of the at least one HARQ process is used for data transmission includes:
when the next HARQ process period of the current HARQ process period where the first HARQ process is located starts, judging whether new data needs to be sent in a cache of a terminal;
if new data needs to be sent, replacing the data in the cache of the first HARQ process by the new data;
and if no new data needs to be sent, reserving the data in the buffer of the first HARQ process.
7. The data processing method of claim 6, further comprising:
and sending the data in the buffer of the first HARQ process to a base station.
8. The data processing method according to claim 7, wherein the step of sending the data in the buffer of the first HARQ process to the base station if there is no new data to send comprises:
judging whether to allow retransmission of the first HARQ process;
and if the retransmission of the first HARQ process is allowed, sending the data in the cache of the first HARQ process to a base station.
9. The data processing method according to claim 6, wherein the manner of determining whether there is new data to be sent in the buffer of the terminal is as follows:
judging whether new data in a cache of a terminal needs to be sent by using the first HARQ process; or
And judging whether new data in the buffer memory of the terminal is to be sent by using the current scheduling-free resource.
10. A terminal, comprising:
an obtaining module, configured to obtain at least one hybrid automatic repeat request HARQ process allocated for a scheduling-free resource;
the processing module is used for processing the data in the cache of the first HARQ process when the first HARQ process in at least one HARQ process is used for data transmission;
the processing module is specifically configured to:
in the HARQ process period of the first HARQ process, when the first resource is used for data transmission, whether new data needs to be sent in a cache of the terminal is judged at the moment of the second resource;
if new data needs to be sent, storing the new data into a newly determined cache of a second HARQ process;
if no new data needs to be sent, reserving the data in the cache of the first HARQ process;
and the second resource is used for sending the new data in the newly determined buffer of the second HARQ process to the base station.
11. The terminal of claim 10, further comprising:
the judging module is used for judging whether the retransmission scheduling of the first HARQ process sent by the base station is detected;
a first sending module, configured to send, to a base station, data reserved in the cache of the first HARQ process if retransmission scheduling of the first HARQ process is detected.
12. The terminal of claim 10, wherein when preserving the data in the buffer, the terminal further comprises:
a second sending module, configured to, if data in the buffer of the HARQ process is not successfully transmitted in the current HARQ process period in which the first HARQ process is located, resend the data in the buffer of the first HARQ process in a next HARQ process period;
wherein the unsuccessful transmission of the data in the buffer of the first HARQ process comprises: the terminal receives a feedback message that the data sent by the base station is not successfully received or the terminal does not receive a feedback message that the data sent by the base station is successfully received.
13. The terminal of claim 10, wherein if no new data needs to be sent, the terminal further comprises:
and a fourth sending module, configured to send, on the first resource, the data in the buffer of the first HARQ process to the base station.
14. The terminal according to claim 10, wherein the manner of determining whether there is new data to be sent in the buffer of the terminal is as follows:
judging whether new data in a cache of a terminal needs to be sent by using the first HARQ process; or
And judging whether new data in the buffer memory of the terminal is to be sent by using the current scheduling-free resource.
15. A terminal, comprising:
an obtaining module, configured to obtain at least one hybrid automatic repeat request HARQ process allocated for a scheduling-free resource;
the processing module is used for processing the data in the cache of the first HARQ process when the first HARQ process in at least one HARQ process is used for data transmission;
the processing module is specifically configured to:
when the next HARQ process period of the current HARQ process period where the first HARQ process is located starts, judging whether new data needs to be sent in a cache of a terminal;
if new data needs to be sent, replacing the data in the cache of the first HARQ process by the new data;
and if no new data needs to be sent, reserving the data in the buffer of the first HARQ process.
16. The terminal of claim 15, further comprising:
and a third sending module, configured to send the data in the buffer of the first HARQ process to a base station.
17. The terminal of claim 16, wherein if there is no new data to be sent, the third sending module comprises:
a second judgment submodule, configured to judge whether to allow retransmission of the first HARQ process;
and the sending submodule is used for sending the data in the cache of the first HARQ process to a base station if the retransmission of the first HARQ process is allowed.
18. The terminal according to claim 15, wherein the manner of determining whether there is new data to be sent in the buffer of the terminal is as follows:
judging whether new data in a cache of a terminal needs to be sent by using the first HARQ process; or
And judging whether new data in the buffer memory of the terminal is to be sent by using the current scheduling-free resource.
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