CN112543479A - Method and device for realizing uplink data transmission and user equipment - Google Patents
Method and device for realizing uplink data transmission and user equipment Download PDFInfo
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- CN112543479A CN112543479A CN202011396848.2A CN202011396848A CN112543479A CN 112543479 A CN112543479 A CN 112543479A CN 202011396848 A CN202011396848 A CN 202011396848A CN 112543479 A CN112543479 A CN 112543479A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a method and a device for realizing uplink data transmission, user equipment and a computer readable storage medium. The method comprises the following steps: after a scheduling request and a Buffer Status Report (BSR) are sent to a base station and a UE is suspended and enters an inactive state, judging whether uplink data to be transmitted actually before the UE is suspended is more than data in a buffer indicated in the BSR or not and whether the UE is suspended after a BSR retransmission timer is overtime or not; if the uplink data actually to be transmitted before the UE is suspended is more than the data in the buffer indicated in the BSR, and the UE is suspended after the BSR retransmission timer expires, after entering the connected state again, if there is new uplink data to be transmitted, the UE is forced to send a scheduling request to the base station, and the BSR is triggered to transmit the uplink data. The invention can continue to transmit the uplink data when the uplink data is more than the data in the BSR and enters the connection state after entering the non-activated state.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for implementing uplink data transmission, a user equipment, and a computer-readable storage medium.
Background
Under 5G NR (New Radio, New air interface), RRC (Radio Resource Control) has three states: IDLE (IDLE), INACTIVE (INACTIVE) and CONNECTED (CONNECTED). As shown in fig. 1, which is a schematic diagram of transition between states of RRC under NR, in a connected state, a base station may cause a UE to transition to an inactive state by sending a Release with Suspend message to the UE; in the inactive state, the UE may return to the connected state by sending a Resume message to the base station.
When a UE (User Equipment) sends an SR (Scheduling Request) to a base station to Request uplink resources, it only indicates whether there is uplink data to be sent, but does not indicate how much uplink data it needs to send. The UE needs to tell the base station through a BSR (Buffer Status Report), how much data needs to be sent in its uplink Buffer area, so that the base station can determine how much uplink resources to allocate to the UE.
When the UE sends uplink data in a connected state, if the sent uplink data is more than the data in the buffer indicated by the BSR, the BSR will be in a congestion state, after a BSR retransmission Timer (retxsr-Timer) times out, the network sends a Release with Suspend message to the UE, and then the UE enters an inactive state. After the UE returns to the connected state, if the UE has uplink data to send, the UE does not restart the scheduling mechanism of the SR, so that the BSR cannot be restarted and the data cannot be transmitted.
Disclosure of Invention
The method, the device, the user equipment and the computer readable storage medium for realizing uplink data transmission provided by the invention can continue to transmit uplink data when the uplink data is more than the data in the BSR and enters a connection state after entering an inactive state.
In a first aspect, the present invention provides a method for implementing uplink data transmission, including:
after a scheduling request and a Buffer Status Report (BSR) are sent to a base station and a UE is suspended and enters an inactive state, judging whether uplink data to be transmitted actually before the UE is suspended is more than data in a buffer indicated in the BSR or not and whether the UE is suspended after a BSR retransmission timer is overtime or not;
if the uplink data actually to be transmitted before the UE is suspended is more than the data in the buffer indicated in the BSR, and the UE is suspended after the BSR retransmission timer expires, after entering the connected state again, if there is new uplink data to be transmitted, the UE is forced to send a scheduling request to the base station, and the BSR is triggered to transmit the uplink data.
Optionally, after the determining whether uplink data actually to be transmitted before the UE is suspended is more than data in the buffer indicated in the BSR, and whether the UE is suspended after a BSR retransmission timer expires, the method further includes:
if the uplink data actually to be transmitted before the UE is suspended is not more than the data in the buffer indicated in the BSR, and/or if the UE is not suspended after the BSR retransmission timer expires, after entering the connected state again, if new uplink data needs to be transmitted, the scheduling request is automatically triggered, so that the BSR is normally triggered, and the uplink data is transmitted.
Optionally, the forcing to send the scheduling request to the base station includes: and forcibly recalling the scheduling request interface, and sending the scheduling request to the base station again.
Optionally, the sending the scheduling request and the buffer status report BSR to the base station includes:
after entering a connected state, sending a scheduling request to a base station to request to acquire uplink resources;
and sending BSR to the base station to inform the base station of the uplink data quantity required to be transmitted.
In a second aspect, the present invention provides an apparatus for implementing uplink data transmission, including:
a determining unit, configured to determine, after sending a scheduling request and a BSR to a base station and after a UE is suspended and enters an inactive state, whether uplink data actually to be transmitted before the UE is suspended is more than data in a buffer indicated in the BSR, and whether the UE is suspended after a BSR retransmission timer expires;
a first processing unit, configured to, if uplink data actually to be transmitted before the UE is suspended is greater than data in the buffer indicated in the BSR, and the UE is suspended after a BSR retransmission timer expires, after entering a connected state again, if new uplink data needs to be transmitted, forcibly send a scheduling request to the base station, trigger the BSR, and perform transmission of the uplink data.
Optionally, the apparatus further comprises:
a second processing unit, configured to determine, by the determining unit, whether uplink data actually to be transmitted before the UE is suspended is greater than data in the buffer indicated in the BSR, and after the UE is suspended after the BSR retransmission timer expires, if the uplink data actually to be transmitted before the UE is suspended is not greater than the data in the buffer indicated in the BSR, and/or if the UE is not suspended after the BSR retransmission timer expires, after entering a connected state again, if new uplink data needs to be transmitted, automatically trigger a scheduling request, so that the BSR is triggered normally, and thus uplink data is transmitted.
Optionally, the first transmission unit is configured to, after re-entering the connected state, force to re-invoke the scheduling request interface if there is new uplink data to be transmitted, send a scheduling request to the base station again, trigger a BSR, and transmit the uplink data.
In a third aspect, the present invention provides a user equipment, where the user equipment includes the apparatus for implementing uplink data transmission.
In a fourth aspect, the present invention provides an apparatus for implementing uplink data transmission, including:
a memory;
and a processor coupled to the memory, the processor configured to execute the method for implementing uplink data transmission based on instructions stored in the memory.
In a fifth aspect, the present invention provides a computer-readable storage medium, where computer instructions are stored, and when the computer instructions are executed by a processor, the method for implementing uplink data transmission is implemented.
According to the method, the device, the user equipment and the computer-readable storage medium for realizing uplink data transmission provided by the embodiment of the invention, when uplink data are more than data in a BSR (buffer status report), and the UE enters a connection state after entering an inactive state, the UE can forcibly send a scheduling request to the base station to trigger the BSR, so that the uplink data transmission can be continued.
Drawings
FIG. 1 is a diagram illustrating the transition between states of RRC under NR;
fig. 2 is a flowchart of a method for implementing uplink data transmission according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for implementing uplink data transmission according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for implementing uplink data transmission according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus for implementing uplink data transmission according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus for implementing uplink data transmission according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a method for implementing uplink data transmission, where the method is applied to a UE, and as shown in fig. 2, the method includes:
s11, after sending the scheduling request and the buffer status report BSR to the base station and the UE is suspended and enters an inactive state, determining whether uplink data actually to be transmitted before the UE is suspended is more than data in the buffer indicated in the BSR, and whether the UE is suspended after the BSR retransmission timer times out.
S12, if the uplink data actually to be transmitted before the UE is suspended is more than the data in the buffer indicated in the BSR, and the UE is suspended after the BSR retransmission timer expires, after entering the connected state again, if there is new uplink data to be transmitted, the UE forcibly sends a scheduling request to the base station, triggers the BSR, and transmits the uplink data.
In the method for implementing uplink data transmission provided in the embodiment of the present invention, when the uplink data is more than the data in the BSR and the UE enters the connection state after entering the inactive state, the UE can forcibly send a scheduling request to the base station to trigger the BSR, thereby ensuring that the uplink data transmission can be continued.
The following describes the implementation method of uplink data transmission in detail with reference to specific embodiments.
As shown in fig. 3, the method for implementing uplink data transmission in this embodiment includes:
and S21, after the UE enters the connection state, the UE has uplink data to transmit, and the UE sends a scheduling request to the base station to request to acquire uplink resources.
S22, the UE sends BSR to the base station to inform the base station of the amount of uplink data to be transmitted, the base station allocates the required uplink resources for the UE, and the UE transmits the uplink data.
S23, the UE is suspended and enters an inactive state.
S24, the UE judges whether the uplink data to be transmitted before being suspended is more than the data in the buffer indicated in the BSR, and the UE is suspended after the BSR retransmission timer is overtime, if yes, the step S25 is executed; otherwise, step S26 is executed.
And S25, after the UE enters the connection state again, new uplink data needs to be transmitted, the UE forces to transfer the scheduling request interface again, and sends the scheduling request to the base station again to request to acquire uplink resources.
At this time, the UE does not consider the new uplink data as newly transmitted data, does not automatically trigger a scheduling request according to a transmission flow of the newly transmitted data, and needs to forcibly invoke the SR interface.
And S26, after the UE enters the connected state again, new uplink data needs to be transmitted, and the UE automatically triggers a scheduling request.
At this time, the UE considers the data to be transmitted as newly transmitted data, and automatically triggers a scheduling request according to a transmission flow of the newly transmitted data.
And S27, the UE starts a BSR to transmit uplink data.
Therefore, when uplink transmission data is more than data in the BSR and the UE enters the connection state after entering the non-activated state, the UE can forcibly send a scheduling request to the base station to trigger the BSR, so that uplink data transmission can be continued.
An embodiment of the present invention further provides an apparatus for implementing uplink data transmission, where as shown in fig. 4, the apparatus includes:
a determining unit 11, configured to determine, after sending the scheduling request and the BSR to the base station and after the UE is suspended and enters the inactive state, whether uplink data actually to be transmitted before the UE is suspended is more than data in a buffer indicated in the BSR, and whether the UE is suspended after a BSR retransmission timer expires;
a first processing unit 12, configured to, if uplink data actually to be transmitted before the UE is suspended is greater than data in the buffer indicated in the BSR, and the UE is suspended after the BSR retransmission timer expires, after entering a connected state again, if new uplink data needs to be transmitted, forcibly send a scheduling request to the base station, trigger the BSR, and perform transmission of the uplink data.
According to the device for realizing uplink data transmission provided by the embodiment of the invention, when the uplink data is more than the data in the BSR and the UE enters the connection state after entering the non-activated state, the UE can forcibly send the scheduling request to the base station to trigger the BSR, so that the uplink data transmission can be continued.
Further, as shown in fig. 5, the apparatus further includes:
a second processing unit 13, configured to determine, before the determining unit 11 determines that the uplink data actually to be transmitted before the UE is suspended is more than the data in the buffer indicated in the BSR, and after the UE is suspended after the BSR retransmission timer expires, if the uplink data actually to be transmitted before the UE is suspended is not more than the data in the buffer indicated in the BSR, and/or if the UE is not suspended after the BSR retransmission timer expires, after entering a connected state again, if there is new uplink data to be transmitted, automatically trigger a scheduling request, so that the BSR is triggered normally, and thus the uplink data is transmitted.
Optionally, the first transmission unit 13 is configured to, after re-entering the connected state, if there is new uplink data to be transmitted, force to re-invoke the scheduling request interface, send a scheduling request to the base station again, trigger a BSR, and perform transmission of the uplink data.
The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
The embodiment of the invention also provides the user equipment which comprises the device for realizing the uplink data transmission.
An embodiment of the present invention further provides an apparatus 2 for implementing uplink data transmission, and as shown in fig. 6, the apparatus includes:
a memory 21;
and a processor 22 coupled to the memory, wherein the processor 22 is configured to execute the above-mentioned method for implementing uplink data transmission based on the instructions stored in the memory 21.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer instruction is stored, and when the computer instruction is executed by a processor, the implementation method for uplink data transmission is implemented.
It will be understood by those skilled in the art that all or part of the processes of the embodiments of the methods described above may be implemented by a computer program, which may be stored in a computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for implementing uplink data transmission is characterized by comprising the following steps:
after a scheduling request and a Buffer Status Report (BSR) are sent to a base station and a UE is suspended and enters an inactive state, judging whether uplink data to be transmitted actually before the UE is suspended is more than data in a buffer indicated in the BSR or not and whether the UE is suspended after a BSR retransmission timer is overtime or not;
if the uplink data actually to be transmitted before the UE is suspended is more than the data in the buffer indicated in the BSR, and the UE is suspended after the BSR retransmission timer expires, after entering the connected state again, if there is new uplink data to be transmitted, the UE is forced to send a scheduling request to the base station, and the BSR is triggered to transmit the uplink data.
2. The method of claim 1, wherein after the determining whether the uplink data actually transmitted before the UE is suspended is more than the data in the buffer indicated in the BSR and whether the UE is suspended after a BSR retransmission timer expires, the method further comprises:
if the uplink data actually to be transmitted before the UE is suspended is not more than the data in the buffer indicated in the BSR, and/or if the UE is not suspended after the BSR retransmission timer expires, after entering the connected state again, if new uplink data needs to be transmitted, the scheduling request is automatically triggered, so that the BSR is normally triggered, and the uplink data is transmitted.
3. The method of claim 1 or 2, wherein said forcing a scheduling request to a base station comprises: and forcibly recalling the scheduling request interface, and sending the scheduling request to the base station again.
4. The method according to claim 1 or 2, wherein said sending a scheduling request and a Buffer Status Report (BSR) to the base station comprises:
after entering a connected state, sending a scheduling request to a base station to request to acquire uplink resources;
and sending BSR to the base station to inform the base station of the uplink data quantity required to be transmitted.
5. An apparatus for implementing uplink data transmission, comprising:
a determining unit, configured to determine, after sending a scheduling request and a BSR to a base station and after a UE is suspended and enters an inactive state, whether uplink data actually to be transmitted before the UE is suspended is more than data in a buffer indicated in the BSR, and whether the UE is suspended after a BSR retransmission timer expires;
a first processing unit, configured to, if uplink data actually to be transmitted before the UE is suspended is greater than data in the buffer indicated in the BSR, and the UE is suspended after a BSR retransmission timer expires, after entering a connected state again, if new uplink data needs to be transmitted, forcibly send a scheduling request to the base station, trigger the BSR, and perform transmission of the uplink data.
6. The apparatus of claim 5, further comprising:
a second processing unit, configured to determine, by the determining unit, whether uplink data actually to be transmitted before the UE is suspended is greater than data in the buffer indicated in the BSR, and after the UE is suspended after the BSR retransmission timer expires, if the uplink data actually to be transmitted before the UE is suspended is not greater than the data in the buffer indicated in the BSR, and/or if the UE is not suspended after the BSR retransmission timer expires, after entering a connected state again, if new uplink data needs to be transmitted, automatically trigger a scheduling request, so that the BSR is triggered normally, and thus uplink data is transmitted.
7. The apparatus according to claim 5 or 6, wherein the first transmission unit is configured to, after re-entering the connected state, force to re-invoke the scheduling request interface if there is new uplink data to be transmitted, send the scheduling request to the base station again, trigger a BSR, and perform uplink data transmission.
8. A user equipment, characterized in that the user equipment comprises the apparatus for implementing uplink data transmission according to any one of claims 5 to 7.
9. An apparatus for implementing uplink data transmission, comprising:
a memory;
and a processor coupled to the memory, the processor configured to execute the method of implementing upstream data transmission according to any one of claims 1 to 4 based on instructions stored in the memory.
10. A computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, which when executed by a processor implement the method for implementing uplink data transmission according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011396848.2A CN112543479B (en) | 2020-12-03 | 2020-12-03 | Method and device for realizing uplink data transmission and user equipment |
| PCT/CN2021/131282 WO2022116835A1 (en) | 2020-12-03 | 2021-11-17 | Uplink data transmission implementation method and apparatus, and user equipment |
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| CN202011396848.2A CN112543479B (en) | 2020-12-03 | 2020-12-03 | Method and device for realizing uplink data transmission and user equipment |
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| WO2023030449A1 (en) * | 2021-09-06 | 2023-03-09 | 华为技术有限公司 | Communication method and apparatus |
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| WO2022116835A1 (en) | 2022-06-09 |
| CN112543479B (en) | 2022-08-23 |
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