CN115550329A - Method and device for improving VOLTE call quality - Google Patents

Method and device for improving VOLTE call quality Download PDF

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Publication number
CN115550329A
CN115550329A CN202211109404.5A CN202211109404A CN115550329A CN 115550329 A CN115550329 A CN 115550329A CN 202211109404 A CN202211109404 A CN 202211109404A CN 115550329 A CN115550329 A CN 115550329A
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data
queue
rlc
uplink
volte
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郑锐
孙金重
王青松
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ASR Microelectronics Co Ltd
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ASR Microelectronics Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1083—In-session procedures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS

Abstract

The invention discloses a method for improving VOLTE call quality. Step S1: the RABM module of the UE judges whether the real-time use condition of the uplink memory space is larger than or equal to an alarm threshold value; and if so, discarding the common service data in the uplink data. Step S2: the RABM module of the UE divides uplink data into three queues. And step S3: the RABM module of the UE compares the size of the RLC pending transmission data queue with GrantSizeA. And if the size of the RLC pending transmission data queue of the UE is larger than or equal to GrantSizeA, only the uplink data in the first queue is distributed to the RLC pending transmission data queue of the UE. Otherwise, the uplink data in the first queue, the second queue and the third queue are distributed to an RLC pending transmission data queue of the UE in sequence. And step S4: and sending the data in the RLC pending transmission data queue of the UE to the network side according to the received uplink authorization value given by the network side this time, and then returning to the step S3. The invention optimizes the sending mode of VOLTE uplink data and improves the communication quality of VOLTE in a weak signal area.

Description

Method and device for improving VOLTE call quality
Technical Field
The present invention relates to a mobile communication technology, and in particular, to an uplink data transmission control method.
Background
VOLTE (Voice over Long-Term Evolution Voice bearer) is an IP Multimedia Subsystem (IMS) -based network, and uses a configuration file specially made for a control plane and a media plane of a Voice service in the LTE network, so that the Voice service is transmitted as a data stream in the LTE data bearer network without relying on the technology of a conventional circuit-switched Voice network.
When a UE (user equipment) dials or answers a VOLTE call, two to three DRBs (Data Radio Bearer) are activated. If the call is VOLTE voice call, activating two DRBs; one DRB is used for transmitting IMS voice telephony signaling and the other DRB is used for transmitting VOLTE voice data. If the call is a VOLTE video call, three DRBs are activated; an additional DRB is used for transmitting VOLTE video data. Among the DRBs, the DRB for transmitting the IMS voice telephone signaling is the most critical, and is related to the success rate of call setup of VOLTE; the DRB used for transmitting VOLTE voice data is also important, which is related to VOLTE call quality; the DRB used to transmit VOLTE video data is not so important, only as to whether VOLTE video is smooth. These three types of VOLTE data are transmitted together with normal service data (i.e., service data other than VOLTE calls, such as FTP data). If the quality of the mobile communication network is poor, uplink data can be blocked, and the phenomena of VOLTE call failure or call drop, voice distortion and the like can be caused.
In the current mobile communication network, a user often has a situation of using a mobile phone data service and using a VOLTE call at the same time, for example, when a certain user is watching a multimedia program and receives a VOLTE call service, the VOLTE call quality is interfered by common service data. Since the VOLTE data and the general service data may arrive at the protocol stack concurrently, a large amount of continuous general service data and VOLTE data following the general service data may occur at random. After the Data processing is completed, a Packet Data Convergence Protocol (PDCP) layer of the UE sends the processed Data to a Radio Link Control (RLC) layer, and the RLC layer waits for uplink Grant (Grant) scheduling. If the signal quality of the mobile communication network is normal, the uplink scheduling resource allocated by the network is limited, which may result in accumulation of uplink data. When the uplink grant arrives, there may be a situation that only ordinary service data is transmitted for a certain number of TTIs (Transmission Time Interval), and the VOLTE data is not transmitted, so that the Transmission delay of the VOLTE data is increased to cause a problem of call quality in the VOLTE, and a call failure or a call drop occurs. For users, VOLTE calls have priority significantly higher than normal data services, but the existing mobile communication networks do not deal with this specifically.
Disclosure of Invention
The technical problem to be solved by the invention is how to improve the VOLTE call quality in such a scene when the user terminal simultaneously uses the common data service and the VOLTE call service.
In order to solve the technical problem, the invention provides a method for improving VOLTE call quality, which comprises the following steps. Step S1: when the uplink data reaches a Radio Access Bearer Management (RABM) module of User Equipment (UE), the RABM module of the UE judges whether the real-time use condition of an uplink memory space available for the uplink data is larger than or equal to an alarm threshold value; the uplink data is divided into two categories of VOLTE data and common service data; the VOLTE data are divided into IMS voice telephone signaling and VOLTE voice data, and when VOLTE video call is carried out, VOLTE video data are also included. If yes, the RABM module of the UE discards the normal service data in the uplink data, and then the step S2 is carried out. If not, directly entering step S2. Step S2: the RABM module of the UE divides uplink data into three queues: IMS voice telephone signaling and VOLTE voice data are placed in a first queue, VOLTE video data are placed in a second queue, and common service data are placed in a third queue. And step S3: the RABM module of the UE compares the size of the RLC pending transmission data queue with GrantSizeA, wherein GrantSizeA is a threshold value which is set by the UE and represents the upper limit of uplink data transmission. And if the size of the RLC pending transmission data queue of the UE is larger than or equal to GrantSizeA, the RABM module of the UE only distributes the uplink data in the first queue to the RLC pending transmission data queue of the UE. And if the size of the RLC to-be-transmitted data queue of the UE is smaller than GrantSizeA, the RABM module of the UE sequentially distributes uplink data in the first queue, the second queue and the third queue to the RLC to-be-transmitted data queue of the UE, and the next queue is stopped to be distributed until the size of the RLC to-be-transmitted data queue of the UE is larger than or equal to GrantSizeA. And step S4: and the RLC entity of the UE sends the data in the RLC pending transmission data queue of the UE to the network side according to the received uplink authorization value given by the network side this time, and then returns to the step S3.
Preferably, the alarm threshold is 80% of the uplink memory space.
Optionally, in step S1, the processing manner determined as yes is changed to: if so, the RABM module of the UE discards common service data in the uplink data, and then judges whether the real-time use condition of the uplink memory space is greater than or equal to the alarm threshold value again. If yes, the RABM module of the UE continues to discard the VOLTE video data in the uplink data, and then proceeds to step S2. If no, the process goes to step S2 directly.
Preferably, in step S2, the RABM module of the UE performs queue division on the uplink data according to the identity information ID of the RB.
Further, in step S2, the priority of the first queue > the priority of the second queue > the priority of the third queue.
Further, in step S3, if the size of the RLC pending transmission data queue of the UE is less than GrantSizeA, the RABM module of the UE compares the size of the RLC pending transmission data queue with GrantSizeA again after distributing the uplink data in each queue to the RLC pending transmission data queue of the UE; if the size of the RLC to-be-transmitted data queue of the UE is smaller than GrantSizeA, the RABM module of the UE continues to distribute uplink data in the next queue to the RLC to-be-transmitted data queue of the UE; if the size of the RLC pending transmission data queue of the UE is larger than or equal to GrantSizeA, the RABM module of the UE does not distribute uplink data in the next queue to the RLC pending transmission data queue of the UE any more.
Further, in step S3, the uplink data of the RLC pending data queue that is not distributed to the UE is temporarily stored in the RABM module of the UE.
Further, in step S3, if the size of the RLC pending transmission data queue of the UE is still less than GrantSizeA after the uplink data in the three queues are sequentially distributed to the RLC pending transmission data queue of the UE, the process directly enters step S4.
Further, in step S3, the RABM module of the UE distributes uplink data in a certain queue to the RLC pending transmission data queue of the UE, specifically: and after the PDCP entity of the UE finishes processing, the processed uplink data in the queue is put into an RLC pending transmission data queue of the UE and is transmitted to the RLC entity of the UE.
The invention also discloses a device for improving the VOLTE call quality, which comprises a memory management unit, a queue division unit, a data distribution unit and a transmission unit. The memory management unit is used for judging whether the real-time use condition of an uplink memory space available for uplink data is larger than or equal to an alarm threshold value or not when the uplink data reaches a Radio Access Bearer Management (RABM) module of User Equipment (UE); the uplink data is divided into two categories of VOLTE data and common service data; the VOLTE data is divided into IMS voice telephone signaling and VOLTE voice data, and the VOLTE video data is also included when VOLTE video call is carried out; if so, discarding the common service data in the uplink data, and then transmitting the uplink data to the queue dividing unit; if not, the uplink data is directly transmitted to the queue dividing unit. The queue dividing unit is used for dividing uplink data into three queues: IMS voice telephone signaling and VOLTE voice data are placed in a first queue, VOLTE video data are placed in a second queue, and common service data are placed in a third queue. The data distribution unit is used for comparing the size of the RLC to-be-transmitted data queue with GrantSizeA, wherein the GrantSizeA is a threshold value which is set by the UE and represents the upper limit of uplink data transmission; if the size of the RLC pending transmission data queue of the UE is larger than or equal to GrantSizeA, only the uplink data in the first queue is distributed to the RLC pending transmission data queue of the UE; otherwise, the uplink data in the first queue, the second queue and the third queue are sequentially distributed to the RLC pending transmission data queue of the UE, and the distribution of the next queue is stopped until the size of the RLC pending transmission data queue of the UE is larger than or equal to GrantSizeA. The transmission unit is used for transmitting data in the RLC pending transmission data queue of the UE to the network side according to the uplink authorization value given by the network side at this time, and then the data distribution unit continues to process the data.
The invention has the technical effects that: on the premise of following the 3GPP standard, the VOLTE IMS data transmission principle is utilized, and an LTE network resource scheduling mode is combined, so that the VOLTE uplink data transmission mode is optimized, and the VOLTE communication quality in a weak signal area is greatly improved. The practical verification result in the public network (public mobile communication network) is very good, and the VOLTE call quality is greatly improved.
Drawings
Fig. 1 is a schematic flow chart of a method for improving the call quality of VOLTE according to the present invention.
Fig. 2 is a schematic structural diagram of an apparatus for improving VOLTE call quality according to the present invention.
The reference numbers in the figures illustrate that: the system comprises a memory management unit 1, a queue division unit 2, a data distribution unit 3 and a transmission unit 4.
Detailed Description
Referring to fig. 1, the method for improving the VOLTE call quality according to the present invention includes the following steps.
Step S1: the uplink data is divided into two main categories: VOLTE data, general service data (i.e., service data other than VOLTE calls). The VOLTE data is divided into two or three subclasses: IMS voice telephony signaling, VOLTE voice data, VOLTE video data (only when VOLTE video calls). When the uplink data reaches an RABM (Radio Access Bearer Manager) module in a protocol stack of the UE, the RABM module of the UE judges whether the real-time use condition of an uplink memory space available for the uplink data is larger than or equal to an alarm threshold value. The alarm threshold is for example 80% of the upstream memory space.
If yes, the RABM module of the UE discards the normal service data in the uplink data, and then the step S2 is carried out. In this step, when the uplink data reaches the RABM module, the uplink memory space is occupied at the same time. And deleting a part of uplink data reaching the RABM module, and releasing a part of uplink memory space at the same time.
If not, the step S2 is directly carried out without discarding any uplink data.
Step S2: the RABM module of the UE divides uplink data into three queues according to different types: IMS voice telephone signaling and VOLTE voice data are placed in a first queue, VOLTE video data are placed in a second queue, and common service data are placed in a third queue. This step is classified, for example, by RB (Radio Bearer) ID.
And step S3: the RABM module of the UE compares the size of the RLC pending data queue with the GrantSizeA. The GrantSizeA is a threshold value which is set by the UE and is used for representing an uplink data transmission upper limit. The uplink grant value (grantsize) that the network side allocates to the UE at a time is a specific value. Under different network configuration environments, the maximum uplink grant values that the network side can allocate to the UE are all different. The UE will record and analyze the uplink grant value each time, and dynamically determine a suitable upper limit value, which is GrantSizeA. For the LTE network, for implementation convenience, the GrantSizeA may be set to one of three threshold values of 4000 bytes (Byte), 8000 bytes, and 12000 bytes according to protocol provisions and actual delay conditions. The three threshold values can basically meet the requirements of most situations, and the UE dynamically sets the GrantSizeA to one of the three values according to the actual network situation.
If the size of the RLC pending transmission data queue of the UE is larger than or equal to GrantSizeA, the RABM module of the UE only transmits uplink data in the first queue to the PDCP entity of the UE, and the PDCP entity of the UE puts the part of data into the RLC pending transmission data queue of the UE and transmits the part of data to the RLC entity of the UE after processing. And temporarily storing the data of the second queue and the third queue which are not transmitted in the RABM module of the UE.
If the size of the RLC pending transmission data queue of the UE is smaller than grantSizeA, the RABM module of the UE sequentially transmits the uplink data in the first queue, the second queue and the third queue to the PDCP entity of the UE, after the PDCP entity of the UE finishes processing, each part of data is sequentially put into the RLC pending transmission data queue of the UE and transmitted to the RLC entity of the UE, and the next queue is stopped transmitting until the size of the RLC pending transmission data queue of the UE is larger than or equal to grantSizeA. Specifically, after the uplink data in each queue is put into the RLC pending transmission data queue of the UE, if the size of the RLC pending transmission data queue of the UE is smaller than GrantSizeA, the RABM module of the UE continues to transmit the uplink data in the next queue to the PDCP layer of the UE; and if the size of the RLC pending data queue of the UE is larger than or equal to GrantSizeA, the RABM module of the UE does not transmit the uplink data in the latter queue to the PDCP layer of the UE any more. Data of the queues which are not transmitted out is temporarily stored in an RABM module of the UE. And if the size of the RLC pending data queue of the UE is still less than grantSizeA after the uplink data in the three queues are transmitted to the PDCP entity of the UE in sequence, directly entering step S4.
This step is to increase the transmission priority of VOLTE data and strive for limited uplink resources to transmit VOLTE data preferentially. The first queue is a first priority, the VOLTE signaling relates to whether VOLTE conversation can be successfully connected, and whether VOLTE voice data relate to VOLTE conversation is clear. The second queue is a second priority. The third queue is a third priority.
And step S4: and the RLC entity of the UE receives the uplink authorization value given by the network side at this time, and sends data which is not more than the uplink authorization value in the RLC pending transmission data queue of the UE to the network side according to the uplink authorization value. And when the network environment of the UE is unchanged, the uplink authorization value given by the network side every time is less than or equal to GrantSizeA. After the UE changes the environment (e.g., changes the location), the grantsiza may be dynamically adjusted according to the actual situation, and there is no necessary size relationship between the uplink grant value on the network side and the grantsiza. And then returning to the step S3 to continuously distribute the uplink data to the RLC pending transmission data queue of the UE according to different priorities of the three queues.
Alternatively, the processing manner of the determination yes in step S1 is modified as follows. And if the real-time use condition of the uplink memory space is larger than or equal to the alarm threshold, discarding the common service data in the uplink data by the RABM module of the UE, and then judging whether the real-time use condition of the uplink memory space is larger than or equal to the alarm threshold again. If yes, the RABM module of the UE continues to discard the VOLTE video data in the uplink data, and then proceeds to step S2 regardless of the real-time use condition of the uplink memory space. If no, the process goes directly to step S2.
Referring to fig. 2, the apparatus for improving VOLTE speech quality according to the present invention includes a memory management unit 1, a queue partitioning unit 2, a data distribution unit 3, and a transmission unit 4. The apparatus shown in fig. 2 corresponds to the method shown in fig. 1.
The memory management unit 1 is configured to determine whether a real-time use condition of an uplink memory space available for uplink data reaches an RABM module of the UE. If so, discarding the normal service data in the uplink data, and then transmitting the uplink data to the queue partition unit 2. If not, the uplink data is directly transmitted to the queue dividing unit 2.
The queue dividing unit 2 is configured to divide uplink data into three queues according to different types: and the IMS voice telephone signaling and VOLTE voice data are placed in a first queue, VOLTE video data are placed in a second queue, and common service data are placed in a third queue.
The data distribution unit 3 is configured to compare the size of the RLC pending data queue with grantsezea. If the size of the RLC pending transmission data queue of the UE is larger than or equal to GrantSizeA, only the uplink data in the first queue is transmitted to the PDCP entity of the UE, and after the PDCP entity of the UE finishes processing, the part of data is put into the RLC pending transmission data queue of the UE and is transmitted to the RLC entity of the UE. And if the size of the RLC to-be-transmitted data queue of the UE is smaller than GrantSizeA, sequentially transmitting the uplink data in the first queue, the second queue and the third queue to the PDCP entity of the UE, sequentially transmitting each part of data to the RLC to-be-transmitted data queue of the UE to the RLC entity of the UE after the PDCP entity of the UE finishes processing, and stopping transmitting the next queue until the size of the RLC to-be-transmitted data queue of the UE is larger than or equal to GrantSizeA.
The transmission unit 4 is configured to receive an uplink grant value given by the network side this time, and send data that is not greater than the uplink grant value in the RLC pending transmission data queue of the UE to the network side according to the uplink grant value. And then, the data distribution unit 3 continuously distributes uplink data to the RLC pending transmission data queue of the UE according to different priorities of the three queues.
The invention improves and improves the conversation quality of VOLTE from the following two aspects.
First, due to the chip cost control factor, the memory space of the chip inside the UE is limited, wherein the size of the uplink memory space for uplink data is also limited. When the quality of the mobile communication network is general and the uplink data amount is large, the uplink data cannot be sent out in time and a reply is received, so that the phenomenon of uplink data accumulation occurs in the UE, and further, the situation of uplink memory space exhaustion occurs. According to different priorities of uplink data (IMS voice telephone signaling = VOLTE voice data > VOLTE video data > common service data), the invention preferentially ensures that the VOLTE data uses an uplink memory space (namely step S1), and reduces the packet loss rate of the VOLTE data.
Secondly, in order to avoid that the VOLTE data in the uplink data is greatly occupied and delayed by the common service data, the present invention reasonably distributes the uplink data to the RLC pending data buffer queue according to different priorities of the uplink data and the size of the RLC pending data buffer queue (i.e. step S3). And after each uplink scheduling is completed, continuously allocating uplink data to the RLC to-be-transmitted data buffer queue (step S3 is returned after the step S4 is completed), so that when the uplink grant value arrives each time, enough data is to be transmitted in the RLC to-be-transmitted data buffer queue, thereby avoiding the situation of wasting uplink grant resources.
The above are merely preferred embodiments of the present invention, and are not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A method for improving VOLTE call quality is characterized by comprising the following steps;
step S1: when the uplink data reaches a Radio Access Bearer Management (RABM) module of User Equipment (UE), the RABM module of the UE judges whether the real-time use condition of an uplink memory space available for the uplink data is larger than or equal to an alarm threshold value; the uplink data is divided into two categories of VOLTE data and common service data; the VOLTE data is divided into IMS voice telephone signaling and VOLTE voice data, and the VOLTE video data is also included when VOLTE video call is carried out;
if so, the RABM module of the UE discards common service data in the uplink data, and then the step S2 is carried out;
if not, directly entering the step S2;
step S2: the RABM module of the UE divides uplink data into three queues: the IMS voice telephone signaling and the VOLTE voice data are placed in a first queue, the VOLTE video data are placed in a second queue, and the common service data are placed in a third queue;
and step S3: the RABM module of the UE compares the size of the RLC to-be-transmitted data queue with GrantSizeA, wherein the GrantSizeA is a threshold value which is set by the UE and represents the upper limit of uplink data transmission;
if the size of the RLC to-be-transmitted data queue of the UE is larger than or equal to GrantSizeA, the RABM module of the UE only distributes uplink data in the first queue to the RLC to-be-transmitted data queue of the UE;
if the size of the RLC to-be-transmitted data queue of the UE is smaller than GrantSizeA, the RABM module of the UE sequentially distributes uplink data in the first queue, the second queue and the third queue to the RLC to-be-transmitted data queue of the UE, and the next queue is stopped to be distributed until the size of the RLC to-be-transmitted data queue of the UE is larger than or equal to GrantSizeA;
and step S4: and the RLC entity of the UE sends the data in the RLC pending transmission data queue of the UE to the network side according to the received uplink authorization value given by the network side this time, and then returns to the step S3.
2. A method of improving VOLTE call quality as claimed in claim 1 wherein the alarm threshold is 80% of the uplink memory space.
3. A method for improving a VOLTE call quality as claimed in claim 1, wherein in step S1, the processing mode of yes judgment is changed to: if so, discarding the common service data in the uplink data by the RABM module of the UE, and then judging whether the real-time use condition of the uplink memory space is greater than or equal to the alarm threshold value again; if the judgment result is yes again, the RABM module of the UE continues to discard VOLTE video data in the uplink data, and then the step S2 is carried out; if the judgment is no, the process goes to step S2 directly.
4. A method according to claim 1, wherein in step S2, the RABM module of the UE performs queue division on uplink data according to the identity information ID of the radio bearer RB.
5. A method according to claim 1, wherein in step S2, the priority of the first queue > the priority of the second queue > the priority of the third queue.
6. The method according to claim 1, wherein in step S3, if the size of the RLC pending data queue of the UE is smaller than GrantSizeA, the RABM module of the UE compares the size of the RLC pending data queue with GrantSizeA again after distributing the uplink data in each queue to the RLC pending data queue of the UE; if the size of the RLC pending transmission data queue of the UE is less than grantSizeA at the moment, the RABM module of the UE continues to distribute uplink data in the next queue to the RLC pending transmission data queue of the UE; if the size of the RLC pending transmission data queue of the UE is larger than or equal to GrantSizeA, the RABM module of the UE does not distribute uplink data in the next queue to the RLC pending transmission data queue of the UE any more.
7. A method according to claim 1, wherein in step S3, uplink data of the RLC pending transmission data queue that is not distributed to the UE temporarily stores in the RABM module of the UE.
8. The method according to claim 1, wherein in step S3, if the size of the RLC pending data queue of the UE is still less than GrantSizeA after the uplink data in the three queues are sequentially distributed to the RLC pending data queue of the UE, the method directly proceeds to step S4.
9. A method according to claim 1, wherein in step S3, the RABM module of the UE distributes uplink data in a queue to an RLC pending transmission data queue of the UE, and specifically: and after the PDCP entity of the UE finishes processing, the processed uplink data in the queue is put into an RLC pending transmission data queue of the UE and is transmitted to the RLC entity of the UE.
10. A device for improving VOLTE call quality is characterized by comprising a memory management unit, a queue dividing unit, a data distribution unit and a transmission unit;
the memory management unit is used for judging whether the real-time use condition of an uplink memory space available for uplink data is larger than or equal to an alarm threshold value or not when the uplink data reaches a Radio Access Bearer Management (RABM) module of User Equipment (UE); the uplink data is divided into two categories of VOLTE data and common service data; the VOLTE data is divided into IMS voice telephone signaling and VOLTE voice data, and the VOLTE video data is also included when VOLTE video call is carried out; if so, discarding the common service data in the uplink data, and then transmitting the uplink data to the queue dividing unit; if not, the uplink data is directly transmitted to the queue dividing unit;
the queue dividing unit is used for dividing uplink data into three queues: the IMS voice telephone signaling and the VOLTE voice data are placed in a first queue, the VOLTE video data are placed in a second queue, and the common service data are placed in a third queue;
the data distribution unit is used for comparing the size of the RLC to-be-transmitted data queue with GrantSizeA, wherein the GrantSizeA is a threshold value which is set by the UE and represents an uplink data transmission upper limit; if the size of the RLC pending transmission data queue of the UE is larger than or equal to GrantSizeA, only the uplink data in the first queue is distributed to the RLC pending transmission data queue of the UE; otherwise, uplink data in the first queue, the second queue and the third queue are sequentially distributed to an RLC to-be-transmitted data queue of the UE, and distribution of the next queue is stopped until the size of the RLC to-be-transmitted data queue of the UE is larger than or equal to GrantSizeA;
the transmission unit is used for transmitting data in an RLC pending transmission data queue of the UE to the network side according to the uplink authorization value given by the network side at this time, and then the data distribution unit continues to process the data.
CN202211109404.5A 2022-09-13 2022-09-13 Method and device for improving VOLTE call quality Pending CN115550329A (en)

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