CN111163517B - User terminal, transmission method thereof, and computer-readable storage medium - Google Patents
User terminal, transmission method thereof, and computer-readable storage medium Download PDFInfo
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- CN111163517B CN111163517B CN201811322737.XA CN201811322737A CN111163517B CN 111163517 B CN111163517 B CN 111163517B CN 201811322737 A CN201811322737 A CN 201811322737A CN 111163517 B CN111163517 B CN 111163517B
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 230000005540 biological transmission Effects 0.000 title claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims description 14
- 238000012163 sequencing technique Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
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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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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A user terminal, a transmission method thereof, and a computer-readable storage medium. The method comprises the following steps: when the first BWP is switched, starting a timer to count; when the timed duration of the timer reaches the preset timed duration and no signal is monitored, performing signal monitoring on other BWPs and switching to the BWP monitoring the signal, or starting an initial access process on the BWP configured with the random access resource and switching to the BWP with successful initial access for transmission on the switched BWP. By applying the above scheme, when the user terminal switches to the default BWP and the base station fails to perform the continuous LBT, the communication of the user terminal can be recovered quickly, thereby reducing the impact on the performance of the user terminal.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a user terminal, a transmission method thereof, and a computer-readable storage medium.
Background
Currently, the third Generation Partnership project (3 rd Generation Partnership project,3 gpp) protocol supports BWP handover in 3 ways: RRC signaling based, DCI based, and timer based methods.
In the solution for implementing BWP switching based on the timer, when the timing duration of the timer is exceeded, the User Equipment (UE) will switch to the default Bandwidth (BWP).
In a New Radio (NR) system of the fifth generation mobile communication (5G), when a ue switches to a default BWP, due to the constraint of Listen Before Talk (LBT) mechanism, there is a failure of the base station to continue LBT, which causes the ue to be out of service for a long time and affects the performance of the ue.
Disclosure of Invention
The invention aims to solve the problems that: how to quickly recover the communication of the user terminal when the user terminal is switched to the default BWP and the base station fails to continue LBT, reducing the impact on the performance of the user terminal.
In order to solve the above problem, an embodiment of the present invention provides a transmission method for a user equipment, where the method includes: when the first BWP is switched, starting a timer to count; when the timed duration of the timer reaches the preset timed duration and no signal is monitored, performing signal monitoring on other BWPs and switching to the BWP monitoring the signal, or starting an initial access process on the BWP configured with the random access resource and switching to the BWP with successful initial access for transmission on the switched BWP.
Optionally, the other BWPs comprise more than two BWPs; the signal listening on the other BWPs includes: signal listening is performed on the two or more BWPs simultaneously.
Optionally, the other BWPs comprise more than two BWPs; the performing signal listening on other BWPs includes: and carrying out signal monitoring on the more than two BWPs in a time sharing mode.
Optionally, the performing signal listening on the more than two BWPs includes: signal listening is performed on the more than two BWPs in order of priority from high to low.
Optionally, the order of the priorities is determined in order of IDs of BWPs.
Optionally, the order of priority is determined by the number of times BWP is activated or the length of time BWP is in an activated state.
Optionally, the BWP with the highest priority level is the initial BWP.
Optionally, the starting an initial access process on the BWP configured with the random access resource includes: the initial access process is preferably started on the initial BWP.
An embodiment of the present invention further provides a user terminal, where the user terminal includes: the timing unit is suitable for starting a timer to count when switching to the first BWP; and the processing unit is adapted to perform signal listening on other BWPs and switch to the BWP listening to the signal when the counted duration of the timer reaches the preset timed duration and no signal is listened, or start an initial access process on the BWP configured with the random access resource and switch to the BWP successfully accessed for transmission on the switched BWP.
Optionally, the other BWPs comprise more than two BWPs; the processing unit is adapted to perform signal listening on the two or more BWPs simultaneously.
Optionally, the other BWPs comprise more than two BWPs; the processing unit is suitable for carrying out signal monitoring on the more than two BWPs in a time-sharing manner.
Optionally, the processing unit is adapted to perform signal listening on the more than two BWPs in order of priority from high to low.
Optionally, the order of priority is determined in order of IDs of BWPs.
Optionally, the order of the priority is determined according to the number of times the BWP is activated or the duration of time the BWP is in the activated state.
Optionally, the BWP with the highest priority level is the initial BWP.
Optionally, the processing unit preferentially starts an initial access process on the initial BWP.
Embodiments of the present invention further provide a computer-readable storage medium, on which computer instructions are stored, and when the computer instructions are executed, the method of any one of the above-mentioned steps is performed.
The embodiment of the present invention further provides a terminal, which includes a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes any of the steps of the method when executing the computer instructions.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following advantages:
by applying the scheme of the invention, when the user terminal is switched to the first BWP, the timer is started to count, when the counting duration of the timer reaches the preset timing duration and no signal is monitored, the user terminal monitors signals on other BWPs, and switches the user terminal to the BWP which monitors the signals in time, thereby being capable of quickly recovering the communication of the user terminal, avoiding the wireless link failure caused by long-time jamming on the first BWP and reducing the influence on the performance of the user terminal.
When the user terminal switches to the first BWP, a timer is started for timing, when the timing duration of the timer reaches a preset timing duration and no signal is monitored, the user terminal starts an initial access process on the BWP configured with random access resources and switches the user terminal to the BWP with successful initial access, thereby quickly recovering the communication of the user terminal, avoiding that the user terminal cannot be served due to long-time being trapped on the first BWP and reducing the influence on the performance of the user terminal.
Drawings
Fig. 1 is a flowchart of a transmission method of a ue in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a user terminal in an embodiment of the present invention.
Detailed Description
Currently, in the NR system, after the ue switches to a BWP, the base station may fail to maintain LBT, which may cause the ue to be out of service for a long time and affect the performance of the ue.
In view of the above problem, the present invention provides a method for controlling a ue, which starts a timer to count after the ue switches to a first BWP, and when the counted duration of the timer reaches a preset timed duration, if the ue does not monitor any signal, the ue either listens to another BWP and switches the ue to the BWP that monitors the signal in time, or starts an initial access procedure on the BWP configured with a random access resource and switches the ue to the BWP that has successful initial access, thereby reducing the impact on the performance of the ue due to being trapped in the first BWP for a long time.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, an embodiment of the present invention provides a transmission method for a user equipment, where the method may include the following steps:
and step 11, starting a timer to count when switching to the first BWP.
In particular implementations, the first BWP may be a default BWP.
In a specific implementation, the timing duration of the timer may be preset, and the operation of the user terminal may be adjusted by comparing the timing duration of the timer with the preset timing duration.
And step 12, when the timed duration of the timer reaches the preset timed duration and no signal is monitored, performing signal monitoring on other BWPs and switching to the BWP where the signal is monitored, or starting an initial access process on the BWP configured with the random access resource and switching to the BWP where the initial access is successful, so as to perform transmission on the switched BWP.
In an implementation, after the ue switches to the first BWP, if the ue listens to the signal within the preset timing duration, which indicates that the ue is still being served by the base station, the ue may still continue to transmit on the first BWP. And if no signal is monitored within the preset timing duration, indicating that the user terminal is not served by the base station for a long time.
In a specific implementation, when the counted duration of the timer reaches a preset timed duration and does not listen to any signal, the ue either performs signal listening on other BWPs and switches the ue to the BWP listening to the signal, or starts an initial access procedure on the BWP configured with the random access resource and switches to the BWP with successful initial access, which may be selected by a person skilled in the art. However, no matter how the control is carried out, the user terminal can be enabled to quickly recover the communication, and the influence on the performance of the user terminal is reduced.
The above two control operations are described in detail below:
the first method comprises the following steps: the user terminal listens for signals on other BWPs and switches to the BWP listening to the signals.
In a specific implementation, the ue performs signal listening on other BWPs, so that the current radio link can be maintained, and failure of the current radio link is avoided.
In a specific implementation, the other BWPs are BWPs other than the first BWP. The other BWPs may include only one BWP, or may include two or more BWPs. In other words, the ue may listen to the signal in one other BWP, or in two or more other BWPs.
Preferably, in order to reduce the operation complexity, the ue may be controlled to listen to the other BWPs, i.e. the other BWPs include only one BWP.
In an embodiment of the present invention, when the other BWPs include more than two BWPs, the ue may listen to the signals on the more than two BWPs simultaneously.
In another embodiment of the present invention, when the other BWPs include two or more BWPs, the user terminal may perform signal listening on the two or more BWPs in a time-sharing manner. For example, time-sharing periods during which signal listening is performed on different BWPs may be preset, and the ue performs signal listening on the corresponding BWPs during the corresponding time-sharing periods.
In particular implementations, the signals heard over BWPs include, but are not limited to: a Physical Downlink Control Channel (PDCCH), a Demodulation Reference Signal (DRS), an initial Signal (initial Signal), and the like. It should be understood that the specific type of signal listened to on the BWP is not intended to limit the present invention and is within the scope of the present invention.
In a specific implementation, when the ue performs signal listening on other BWPs, the signal listening may be performed in order from high priority to low priority.
In an embodiment of the present invention, the priority may be determined according to the sequence of BWP sequence numbers (IDs), for example, the priority decreases in the descending order of BWP sequence numbers.
In another embodiment of the present invention, the order of the priorities may also be determined according to the number of times BWP is activated or the duration of time BWP is in the activated state. For example, the priority level decreases in order of the number of times BWP is activated. The priority level decreases in the order of the length of the BWP active state from long to short.
In a preferred embodiment, the initial BWP may be set with the highest priority in order to more quickly resume the communication of the user terminal and further reduce the latency of the user terminal. In other words, the user terminal may first perform signal listening on the initial BWP when performing signal listening on other BWPs. Since the initial BWP is the BWP that the ue first occupies, the probability that the ue will listen to the signal on the initial BWP is the greatest, and thus the ue can resume its communication more quickly.
When the user terminal switches to a listening BWP, transmission may occur on the listening BWP.
And the second method comprises the following steps: the user terminal starts an initial access process on the BWP configured with the random access resource and switches to the BWP with successful initial access.
In a specific implementation, the ue restarts the initial access process, that is, abandons the current radio link and performs the initial access again.
In a specific implementation, there may be only one BWP configured with random access resources, or there may be multiple BWPs. When there are a plurality of BWPs configured with random access resources, the user terminal may simultaneously start an initial access procedure on two or more BWPs.
Preferably, in order to reduce operation complexity, the user terminal may initiate an initial access procedure on only one of BWPs.
In an embodiment of the present invention, the starting an initial access process on a BWP configured with random access resources includes: the initial access process is preferably started on the initial BWP. That is, the user terminal may first attempt to start the initial access procedure back on the initial BWP.
When the user terminal switches to the successful BWP of initial access, the transmission can be carried out on the successful BWP of initial access.
As can be seen from the above, in the transmission method of the ue in the embodiment of the present invention, after the ue switches to the first BWP, if the timer duration of the timer does not monitor any signal, the ue switches to another BWP capable of monitoring the signal or switches to another BWP capable of initially successfully accessing, so as to reduce the impact on the performance of the ue caused by being trapped in the first BWP for a long time.
In order to make those skilled in the art better understand and implement the present invention, the user terminal and the computer readable storage medium corresponding to the above method are described in detail below.
Referring to fig. 2, an embodiment of the present invention provides a user terminal 20, where the user terminal 20 may include: a timing unit 21 and a control unit 22. Wherein:
the timing unit 21 is adapted to start a timer to count when switching to the first BWP;
the control unit 22 is adapted to, when the counted duration of the timer reaches the preset timed duration and no signal is listened to, perform signal listening on other BWPs and switch to the BWP listening to the signal, or start an initial access process on the BWP configured with the random access resource and switch to the BWP with successful initial access for transmission on the switched BWP.
In an embodiment of the present invention, the other BWPs include two or more BWPs; the processing unit 22 is adapted to perform signal listening on the two or more BWPs simultaneously.
In an embodiment of the present invention, the other BWPs include two or more BWPs; the processing unit 22 is adapted to perform signal listening on the two or more BWPs in a time-sharing manner.
In an embodiment of the present invention, the processing unit 22 is adapted to perform signal listening on the two or more BWPs in order of priority from high to low.
In an embodiment of the present invention, the order of priority is determined according to the order of IDs of BWPs.
In another embodiment of the present invention, the order of the priorities is determined according to the number of times the BWP is activated or the duration of time the BWP is in the activated state.
Preferably, the BWP with the highest priority level is the initial BWP.
Preferably, the processing unit 22 preferentially starts the initial access process on the initial BWP.
The embodiment of the present invention further provides another computer-readable storage medium, where a computer instruction is stored, and when the computer instruction runs, the steps of any one of the transmission methods of the user terminal in the foregoing embodiments are executed, which is not described herein again.
In particular implementations, the computer-readable storage medium may include: ROM, RAM, magnetic or optical disks, and the like.
The embodiment of the present invention further provides a terminal, where the terminal may include a memory and a processor, where the memory stores a computer instruction capable of being executed on the processor, and when the processor executes the computer instruction, the step of executing any one of the transmission methods of the user terminal in the foregoing embodiments is performed, and details are not repeated.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. A transmission method of a user terminal, comprising:
when the first BWP is switched, starting a timer to count;
when the timing duration of the timer reaches the preset timing duration and no signal is monitored, signal monitoring is carried out on other BWPs, and the BWP which monitors the signal is switched to,
or starting an initial access process on the BWP configured with the random access resource, and switching to the BWP with successful initial access to transmit on the switched BWP;
wherein the performing signal listening on other BWPs includes: the priority order is determined according to the sequencing of the ID of the BWP, or the activated times or the activated duration of the BWP, and signal listening is carried out on more than two BWPs according to the sequence from high priority to low priority.
2. The transmission method of the user terminal of claim 1, wherein the other BWPs include more than two BWPs; the signal listening on the other BWPs includes:
signal listening is performed on the more than two BWPs simultaneously.
3. The transmission method of the user terminal of claim 1, wherein the other BWPs include more than two BWPs; the signal listening on the other BWPs includes:
and carrying out signal monitoring on the more than two BWPs in a time sharing mode.
4. The transmission method of a user terminal according to claim 2 or 3, wherein the BWP with highest priority level is the initial BWP.
5. The transmission method of a user terminal according to claim 1, wherein the starting of the initial access procedure on the BWP configured with the random access resource comprises:
the initial access procedure is preferably initiated on the initial BWP.
6. A user terminal, comprising:
a timing unit adapted to start a timer to count when switching to the first BWP;
the processing unit is suitable for performing signal monitoring on other BWPs and switching to the BWP which monitors the signal when the timing duration of the timer reaches a preset timing duration and does not monitor any signal, or starting an initial access process on the BWP which is configured with the random access resource and switching to the BWP which is successfully accessed initially to perform transmission on the switched BWP;
the processing unit determines the order of priority according to the sorting of the ID of the BWP, or the number of times the BWP is activated or the duration of the activated state, and performs signal listening on more than two BWPs according to the order of the priority from high to low.
7. The user terminal of claim 6, wherein the other BWPs comprise more than two BWPs; the processing unit is adapted to perform signal listening on the two or more BWPs simultaneously.
8. The user terminal of claim 6, wherein the other BWPs comprise more than two BWPs; the processing unit is suitable for carrying out signal monitoring on the more than two BWPs in a time-sharing mode.
9. The user terminal of claim 7 or 8, wherein the BWP with the highest priority level is an initial BWP.
10. The user terminal of claim 6, wherein the processing unit preferentially starts an initial access process on an initial BWP.
11. A computer readable storage medium having computer instructions stored thereon for execution by a processor to perform the steps of the method of any one of claims 1 to 5.
12. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 1 to 5.
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| CN201811322737.XA CN111163517B (en) | 2018-11-08 | 2018-11-08 | User terminal, transmission method thereof, and computer-readable storage medium |
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| CN201811322737.XA CN111163517B (en) | 2018-11-08 | 2018-11-08 | User terminal, transmission method thereof, and computer-readable storage medium |
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| CN106445660A (en) * | 2016-09-12 | 2017-02-22 | 广东欧珀移动通信有限公司 | Application control method for mobile terminal and mobile terminal |
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| CN106445660A (en) * | 2016-09-12 | 2017-02-22 | 广东欧珀移动通信有限公司 | Application control method for mobile terminal and mobile terminal |
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