WO2020173452A1

WO2020173452A1 - Communication processing method and related apparatus

Info

Publication number: WO2020173452A1
Application number: PCT/CN2020/076709
Authority: WO
Inventors: 何青春; 黄曲芳; 常俊仁; 娄崇
Original assignee: 华为技术有限公司
Priority date: 2019-02-28
Filing date: 2020-02-26
Publication date: 2020-09-03
Also published as: CN111629444B; CN111629444A

Abstract

Embodiments of the present application disclose a communication processing method and a related apparatus, used to save scheduling request (SR) resources and to reduce interference generated between the SR resources. The communication processing method in the embodiments of the application comprises: a terminal-side device transmitting a first scheduling request (SR) and a random access preamble to a network-side device; the terminal-side device receiving a response message corresponding to the random access preamble from the network-side device; and if the response message fails to indicate an uplink resource, the terminal-side device refraining from retransmitting the first SR for a first duration, wherein the first duration is the sum of an SR transmission-forbidden duration corresponding to the first SR and a first preset duration.

Description

Communication processing method and related device

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on February 28, 2019, the application number is 201910153367. X, and the title of the invention is "a communication processing method and related devices", the entire content of which is incorporated by reference In this application. Technical field

The embodiments of the present application relate to the field of communications, and in particular, to a communication processing method and related devices. Background technique

A scheduling request (SR) is a mechanism for applying for uplink resources in 5G or long term evolution (long term evolution, LTE). Generally, if the terminal-side device does not have uplink data that needs to be transmitted, the network-side device will not allocate uplink resources to the terminal-side device, so as to avoid waste of uplink resources. When the terminal-side device has uplink data that needs to be transmitted, the terminal-side device may send a scheduling request to the network-side device, so that the network-side device can allocate the terminal-side device with uplink resources required to transmit uplink data.

In the prior art, when the terminal-side device fails to request uplink resources from the network-side device through the scheduling request SR, the terminal-side device may send a random access preamble to the network-side device; or, when the terminal When the side device needs to request other data from the network side device, for example, when requesting data on beam failure recovery ⁽ beam failure recovery) or requesting system information (SI), the terminal side device may also send to the network side device Random access preamble. Generally, after the terminal side device sends the random access preamble to the network side device, the terminal side device will cancel the scheduling request SR sent to the network side device after sending the random access preamble. At this time, after the network side device receives the random access preamble sent by the terminal side device, the network side device will send a random access response (RAR) to the terminal side device. If the random access response RAR does not include uplink resources, the terminal side device will again send a scheduling request SR to the network side device to request the network side device to allocate uplink resources to the terminal side device.

In the above solution, when the network-side device receives the scheduling request SR sent by the terminal-side device, the network-side device already knows that the terminal-side device needs uplink resources, and the network-side device has received the SR sent by the terminal-side device. Random access preamble. Therefore, the network side device may allocate uplink resources to the terminal side device in the random access response RAR, or allocate uplink resources to the terminal side device within a certain time after the random access response RAR. In this case, the terminal-side device is not aware that it may obtain the uplink resource. At this time, if the terminal-side device sends a scheduling request SR to the network-side device again, the network-side device sends the request to the terminal. The allocation of uplink resources by the side device will cause repeated requests to the network side device to allocate uplink resources for the terminal side device, which will lead to waste of scheduling request SR resources and interference generated between scheduling request SR resources. Summary of the invention The embodiments of the present application provide a communication processing method and related devices, which are used to save scheduling request SR resources and reduce interference generated between scheduling request SR resources.

In the first aspect, an embodiment of the present application provides a communication processing method, including: when the terminal-side device has uplink data to be sent, if the terminal-side device does not have enough uplink resources to send the uplink data, the terminal-side device may Send the first scheduling request SR and the random access preamble to the network side device to notify the network side device that the terminal side device needs uplink resources to send uplink data. Then, the terminal side device can receive the random access from the network side device. Into the response message corresponding to the preamble, and then, in the case that the response message does not indicate the uplink resource, the terminal-side device stops retransmission of the first SR within the first duration, where the first duration is the first The sum of the SR sending prohibition duration corresponding to the SR and the first preset duration.

In the embodiment of the present application, after the terminal-side device sends the first scheduling request SR to the network-side device, the network-side device can learn that the terminal-side device needs uplink resources. If the response message received by the terminal-side device from the network-side device does not indicate the uplink resource, the terminal-side device will stop the retransmission of the first SR within the first time period. Therefore, it is avoided that the terminal side device repeatedly requests the network side device to allocate uplink resources to the terminal side device within the first time period. Therefore, this solution can save SR resources. Since the transmission of SR is stopped within the first duration, the interference generated between SR resources on the first duration can be reduced.

According to the first aspect, in the first implementation manner of the first aspect of the embodiments of the present application, the random access preamble includes a random access preamble for beam failure recovery or a random access preamble for requesting system information.

In this embodiment, a type of random access preamble is proposed. The random access preamble can be a random access preamble used for beam failure recovery, or a random access preamble for requesting system information. The proposed scheme can be applied to different random access scenarios, therefore, the implementation flexibility of the scheme is increased.

According to the first aspect or the first implementation manner of the first aspect, in the second implementation manner of the first aspect of the embodiments of the present application, the response message is a random access response, and the random access response indicates the first preset Set the duration.

In this embodiment, the response message received by the terminal-side device and returned by the network-side device is a random access response, and the first duration is indicated by the random access response. Therefore, the content and function of the response message are further clarified.

According to the second implementation manner of the first aspect, in the third implementation manner of the first aspect of the embodiments of the present application, the random access response indicates that the first preset duration is at least one time of the SR configuration period.

In this implementation manner, a method of measuring the first preset duration with the SR configuration period is proposed, and the first preset duration is determined by determining the multiple of the SR configuration period. Also, since the first duration is the sum of the SR transmission prohibition duration corresponding to the first SR and the first preset duration, the first duration can be adjusted by adjusting the multiple of the SR configuration period.

According to the first aspect or the first implementation manner of the first aspect, in the fourth implementation manner of the first aspect of the embodiments of the present application, the response message includes a random access response and a medium access control-control element MAC CE. The MAC CE indicates the first preset duration.

In this embodiment, the response message received by the terminal-side device from the network-side device includes a random access response and a media access control-control element MAC CE. In this case, the first duration is determined by the media access Control-The control element MAC CE indicates. Therefore, the content and function of the response message are further clarified. Compared with the previous proposal in which the random access response indicates the first duration, the implementation flexibility of the solution in the embodiment of the present application is increased.

According to the fourth implementation manner of the first aspect, in the fifth implementation manner of the first aspect of the embodiments of the present application, the MAC The CE indicates that the first preset duration is at least one time of the SR configuration period.

In this embodiment, a method of measuring the first preset duration by the SR configuration period is proposed. The first preset duration is determined by determining the multiple of the SR configuration period, and since the first duration is the SR corresponding to the first SR The sum of the transmission prohibition duration and the first preset duration, therefore, the first duration can be adjusted by adjusting the multiple of the SR configuration period.

According to the first aspect or the first implementation manner of the first aspect, in the sixth implementation manner of the first aspect of the embodiments of the present application, the method further includes: when the network side device replies to the terminal side device with a response message that is not When the uplink resource is indicated, the terminal side device sends a second SR to the network side device, and the priority of the second SR is higher than the priority of the first SR.

In this embodiment, since the priority of the second SR sent by the terminal-side device to the network-side device is higher than the priority of the first SR, the network-side device will give priority when processing various scheduling request SRs. Process the second SR. Therefore, the time for the terminal-side device to request uplink resources from the network-side device can be shortened.

According to the first aspect, in a seventh implementation manner of the first aspect of the embodiments of the present application, the method further includes: after the terminal side device sends the random access preamble to the network side device, stopping the timing of the SR transmission prohibition period, And initialize the transmission counter of the first SR; after the terminal side device receives the response message sent by the network side device, it starts the timing of the SR transmission prohibition duration; when the first duration expires and the terminal side device is not When the network side device indicates the uplink resource, the terminal side device retransmits the first SR to the network side device.

In the manner of this embodiment, after the terminal-side device sends the random access preamble to the network-side device, it stops counting the SR transmission prohibition period and initializes the transmission counter of the first SR; the terminal-side device receives After the response message sent by the network side device, the timing of the SR sending prohibition period is started. Therefore, the time for the terminal-side device to retransmit the first SR can be extended, and in addition, the transmission counter of the first SR can be initialized, which can also prevent the scheduling request SR from reaching the maximum number of transmissions and triggering the ordinary random access process.

According to the first aspect, in an eighth implementation manner of the first aspect of the embodiments of the present application, the method further includes: before the terminal-side device sends the first SR to the network-side device, the terminal-side device triggers the first SR SR, where the triggered first SR is in a suspended state; after the terminal side device sends the random access request to the network side device, the terminal side device maintains the suspended state of the first SR; After the terminal side device receives the response message sent by the network side device, if the terminal side device is not indicated by the network side device of the uplink resource, the terminal side device retransmits the suspended state to the network side device. The first SR.

In this embodiment, after the terminal-side device sends the random access request to the network-side device, the terminal-side device will maintain the suspended state of the first SR, that is, the terminal-side device will not cancel the suspension. Start the first SR. Therefore, when the terminal-side device needs to send the first SR, the terminal-side device does not need to trigger another scheduling request SR, but can directly send the first SR in the suspended state. Therefore, the waste of SR resources can be reduced. Since the transmission of SR is reduced in the first time period, the interference generated between SR resources in the first time period can be reduced.

According to the third implementation manner of the first aspect or the fifth implementation manner of the first aspect, in the ninth implementation manner of the first aspect of the embodiments of the present application, the SR configuration period is the SR transmission prohibition period.

In this embodiment, the relationship between the SR configuration period and the existing SR transmission prohibition period is proposed. The first SR configuration period may be equal to the SR transmission prohibition period. However, in future protocols, the SR configuration period may also be The durations of other determined timers are equal, and the specifics are not limited here. This embodiment increases the flexibility of the solution. According to any one of the second implementation manner of the first aspect to the fifth implementation manner of the first aspect, in the tenth implementation manner of the first aspect of the embodiments of the present application, the method further includes: In the case of the first duration and the terminal device is not instructed by the network side device of the uplink resource, the terminal device resends the first SR.

In this embodiment, after receiving the indication of the response message, the terminal side device will not send the first SR until the waiting time of the terminal side device has reached the first duration. If the network side device still does not indicate the uplink resource to the terminal side device at this time, the terminal side device will resend the first SR to request the network side device to allocate uplink resources for the terminal side device.

According to the sixth implementation manner of the first aspect, in the eleventh implementation manner of the first aspect of the embodiments of the present application, sending the second SR to the network-side device by the terminal-side device includes: After two hours, the second SR is sent to the network side device.

In this embodiment, it is proposed that when the response message does not indicate the uplink resource, the terminal-side device may wait for a second period of time before sending the second SR to the network-side device. Therefore, the implementation flexibility of the scheme is improved.

According to the second implementation manner of the first aspect, in the twelfth implementation manner of the first aspect of the embodiments of the present application, the random access response includes indication information, and the indication information is used to indicate that the terminal-side device is in the first Stop sending the first SR to the network side device within the time period.

In this embodiment, a solution is proposed in which the indication information in the random access response is used to instruct the terminal-side device to stop sending the first SR to the network-side device within the first period of time, which is compared with directly using the random access response. The response instructs the terminal-side device to stop sending the solution of the first SR to the network-side device within the first period of time, which increases the implementation flexibility of the solution.

According to the fourth implementation manner of the first aspect, in the thirteenth implementation manner of the first aspect of the embodiments of the present application, the medium access control-control element MAC CE includes indication information, and the indication information is used to indicate the terminal The side device stops sending the first SR to the network side device within the first time period.

In this embodiment, it is proposed that the indication information in the control-control element MAC CE is used to instruct the terminal-side device to stop sending the first SR to the network-side device within the first period of time, which is compared to directly controlled by the device. -The control element MAC CE instructs the terminal-side device to stop sending the first SR solution to the network-side device within the first time period, which increases the implementation flexibility of the solution.

According to the second implementation manner of the first aspect, in the fourteenth implementation manner of the first aspect of the embodiments of the present application, the random access response indicates that the first preset duration is a waiting timer.

In this embodiment, it is proposed to modify the first preset duration by modifying the duration of the custom timer. The waiting timer in this embodiment refers to a custom timer whose duration can be modified. In practical applications In this case, the custom timer whose duration can be modified may be called another name. In this embodiment and subsequent embodiments, for convenience of introduction, it is called a waiting timer. Therefore, the implementation flexibility of the scheme is increased.

In a second aspect, an embodiment of the present application provides a communication processing method, including: a network side device receives a first scheduling request SR and a random access preamble sent by a terminal side device, and then, the network side device sends to the terminal side device The response message corresponding to the random access preamble, where the response message is used to instruct the terminal-side device to stop retransmission of the first SR within a first time period when the indication message does not indicate uplink resources, where the first SR The duration is the sum of the SR transmission prohibition duration corresponding to the first SR and the first preset duration. In the embodiment of the present application, after the network side device receives the random access preamble sent by the terminal side device, the network side device sends a response message corresponding to the random access preamble to the terminal side device, and the response message is used for When the indication message does not indicate the uplink resource, instruct the terminal-side device to stop the retransmission of the first SR within the first time period. Therefore, it is avoided that the terminal side device repeatedly requests the network side device to allocate uplink resources to the terminal side device within the first time period. Therefore, this solution can save SR resources. Since SR transmission is reduced in the first time period, the interference between SR resources in the first time period can be reduced.

According to the second aspect, in the first implementation manner of the second aspect of the embodiments of the present application, the random access preamble includes a random access preamble for beam failure recovery or a random access preamble for requesting system information.

In this embodiment, a type of random access preamble is proposed, and the random access preamble may be a random access preamble used for beam failure recovery, or a random access preamble that requests system information. Since the solution proposed in the embodiment of the present application can be applied to different random access scenarios, the implementation flexibility of the solution is increased.

According to the second aspect or the first implementation manner of the second aspect, in the second implementation manner of the second aspect of the embodiments of the present application, the response message is a random access response, and the random access response indicates the first preset Set the duration.

According to the second implementation manner of the second aspect, in the third implementation manner of the second aspect of the embodiments of the present application, the random access response indicates that the first preset duration is at least one time of the SR configuration period.

According to the second aspect or the first implementation manner of the second aspect, in the fourth implementation manner of the second aspect of the embodiments of the present application, the response message includes a random access response and a medium access control-control element MAC CE, and The MAC CE indicates the first preset duration.

According to the fourth implementation manner of the second aspect, in the fifth implementation manner of the second aspect of the embodiments of the present application, the MAC CE indicates that the first preset duration is at least one time of the SR configuration period.

According to the second aspect or the first implementation manner of the second aspect, in a sixth implementation manner of the second aspect of the embodiments of the present application, the method further includes: the network side device receiving the second SR sent by the terminal side device, The priority of the second SR is higher than the priority of the first SR; the network side device sends the uplink resource to the terminal side device according to the second SR.

In this implementation manner, after the network side receives the second SR sent by the terminal-side device, the priority of the second SR is higher than the priority of the first SR. Therefore, the network side device will prioritize the processing of the second SR and according to the first The second SR sends the uplink resource to the terminal-side device, thereby shortening the time for the terminal-side device to request the uplink resource from the network-side device.

According to the third implementation manner of the second aspect or the fifth implementation manner of the second aspect, in the seventh implementation manner of the second aspect of the embodiment of the present application, the SR configuration period is the SR transmission prohibition period.

In this embodiment, the relationship between the SR configuration period and the existing SR transmission prohibition period is proposed. The first SR configuration period may be equal to the SR transmission prohibition period. However, in future protocols, the SR configuration period may also be The durations of other determined timers are equal, and the specifics are not limited here. This embodiment increases the flexibility of the solution.

According to the second implementation manner of the second aspect, in the eighth implementation manner of the second aspect of the embodiments of the present application, the random access response includes indication information, and the indication information is used to indicate that the terminal-side device is in the first duration Stop sending the first SR to the network side device.

According to the fourth implementation manner of the second aspect, in the ninth implementation manner of the second aspect of the embodiments of the present application, the medium access control-control element MAC CE includes indication information, and the indication information is used to indicate the terminal side The device stops sending the first SR to the network side device within the first time period.

According to the second implementation manner of the second aspect, in the tenth implementation manner of the second aspect of the embodiments of the present application, the random access response indicates that the first preset duration is a waiting timer.

In this embodiment, it is proposed to modify the first preset duration by modifying the duration of the custom timer. The waiting timer in this embodiment refers to a custom timer whose duration can be modified. In practical applications, the custom timer whose duration can be modified may be referred to as another name. In this embodiment and subsequent embodiments, for convenience of introduction, it is referred to as a waiting timer. Therefore, the implementation flexibility of the scheme is increased.

In a third aspect, an embodiment of the present application provides a terminal-side device, including: a processor, and an input/output device; the input/output device is used to execute various implementation manners from the first aspect to the first aspect Sending and receiving actions of the terminal-side device; the processor is configured to perform processing actions such as determining and stopping of the terminal-side device in various implementations of the first aspect to the first aspect.

In a fourth aspect, an embodiment of the present application provides a network-side device, including: a processor, and an input/output device; the input/output device is used to execute various implementation manners from the second aspect to the second aspect Sending and receiving actions of the network-side device; the processor is configured to perform processing actions such as determination of the terminal-side device in various implementations of the second aspect to the second aspect.

In a fifth aspect, an embodiment of the present application provides a terminal-side device, including: a sending module, configured to execute the first aspect and the sending actions of the terminal-side device in various embodiments of the first aspect; a receiving module, configured to execute the first aspect On the one hand And the receiving action of the terminal-side device in various implementations of the first aspect.

In a sixth aspect, an embodiment of the present application provides a network-side device, including: a sending module, configured to execute the second aspect and the sending actions of the network-side device in various embodiments of the second aspect; and a receiving module, configured to execute the second aspect The receiving action of the network side device in the second aspect and various implementations of the second aspect.

In a seventh aspect, an embodiment of the present application provides a communication system, including; a terminal-side device and a network-side device; the terminal-side device executes the methods described in the first aspect and various implementation manners of the first aspect; the network The side device executes the methods introduced in the second aspect and various implementation manners of the second aspect.

In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the first aspect and various implementation manners of the first aspect or the second aspect and The methods described in the various implementations of the second aspect.

In the ninth aspect, the embodiments of the present application provide a computer program product containing instructions, which when run on a computer, cause the computer to execute various implementations such as the first aspect and the first aspect or the second aspect and the second aspect. Aspects of the various implementations introduced methods.

It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

In the embodiment of the present application, after the terminal-side device sends the first scheduling request SR to the network-side device, the network-side device can learn that the terminal-side device needs uplink resources. If the response message received by the terminal-side device from the network-side device does not indicate the uplink resource, the terminal-side device will stop the retransmission of the first SR within the first time period. Therefore, it is avoided that the terminal-side device repeatedly requests the network-side device to allocate uplink resources to the terminal-side device within the first time period. Therefore, this solution can save SR resources. Since the transmission of SR in the first time period is reduced, the first time period is reduced. Interference between SR resources in a period of time. Description of the drawings

Figure 1 is a flowchart of a communication processing method in an embodiment of this application;

2A is a schematic diagram of a sequence of a communication processing method in an embodiment of this application;

Figure 2B is another sequence diagram of the communication processing method in an embodiment of the application;

Figure 2C is another sequence diagram of the communication processing method in an embodiment of the application;

Figure 2D is another timing diagram of the communication processing method in an embodiment of the application;

FIG. 3 is another flowchart of the communication processing method in an embodiment of this application;

FIG. 4 is another sequence diagram of the communication processing method in an embodiment of the application;

FIG. 5 is another flowchart of the communication processing method in an embodiment of this application;

Figure 6A is another timing diagram of the communication processing method in an embodiment of the application;

Figure 6B is another sequence diagram of the communication processing method in an embodiment of the application;

FIG. 7 is another flowchart of the communication processing method in an embodiment of this application;

FIG. 8 is another sequence diagram of the communication processing method in an embodiment of the application;

FIG. 9 is a schematic structural diagram of a terminal-side device in an embodiment of the application;

FIG. 10 is a schematic structural diagram of a network side device in an embodiment of this application. detailed description

The embodiments of the present application provide a communication processing method and related devices, which are used to save scheduling request SR resources and reduce interference generated between scheduling request SR resources.

The terms "first", "second", "third" and "third" in the specification and claims of this application and the above drawings

"Fourth" (if any) is used to distinguish similar objects, but not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to the clearly listed Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

Some terms involved in the embodiments of this application are introduced below:

Scheduling request (SR): refers to a way in which a terminal side device applies to a network side device for uplink resources to transmit data.

Random access procedure (random access procedure): The process from the terminal side device sending a random access preamble (random access preamble) to try to access the network side device until the terminal side device and the network side device establish a signaling connection . In this process, the terminal-side apparatus transmits to the network side device is a random access preamble, the random access preamble in response to the network side device to the terminal device side is a random access response RAR _o

Trigger: In this embodiment of the application, it refers to an action of the terminal-side device before sending the scheduling request SR. After the terminal-side device triggers a scheduling request SR, the scheduling request SR is in the "pending" state, which is understandable Prepared for the terminal side device but has not yet sent the scheduling request SR to the network side device. Generally, the terminal side device needs to trigger the scheduling request SR first, and then send the scheduling request SR.

Suspend: In this embodiment of the application, it refers to a state in which the scheduling request is in the terminal-side device after the scheduling request is triggered. When the scheduling request is in the suspended state, the terminal-side device does not need to Instead of triggering a scheduling request, the scheduling request in the suspended state can be directly sent to the network side device.

SR transmission prohibition time (sr-ProhibitTimer): also called SR prohibit timer, or SR prohibit timer, used to monitor the scheduling request SR transmitted in the physical uplink control channel (PUCCH), when this When the SR blocking timer is running, the terminal-side device cannot send the scheduling request SR. When the SR blocking timer expires, the terminal-side device resends the scheduling request SR until the maximum number of scheduling requests (dsr-TransMax) is reached

SR configuration period: refers to a period of time configured by the network side device. The network side device can indicate the number of this time period to the terminal side device. In the embodiment of the present application, the duration of the SR configuration period may be equal to the SR transmission prohibition duration or the duration of other timers, which is specifically limited here.

Multi-medium access control-control element (MAC CE): Refers to the media access layer control element, which occupies a fixed bit size, and uses different logical channel identification (LCID) in the protocol data packet header. ) To distinguish the type of MAC CE, and carry MAC layer control information, such as buffer status report (BSR), discontinuous reception (DRX), power headroom report (PHR), and so on. Uplink grant (UL Grant): refers to a right granted by a network side device to a terminal side device to enable the terminal side device to send uplink data to the network side device. When the network side device sends uplink data to the terminal side device After the uplink authorization, the network side device may also allocate uplink resources to the terminal side device in the uplink authorization.

The following describes the application scenarios to which the embodiments of this application are adapted:

The method proposed in the embodiment of this application is mainly applied to the scenario where the terminal side device requests the network side device for uplink resources.

In the existing LTE or 5G network architecture, if the terminal-side device needs to send uplink data to the network-side device, the terminal-side device needs to have a certain qualification to use uplink resources, which is also called uplink authorization. If the terminal-side device does not have available uplink resources, the terminal-side device can apply for uplink resources by sending a scheduling request SR to the network-side device. After the network side device receives the scheduling request SR sent by the terminal side device, the network side device can know that the terminal side device needs uplink resources to transmit uplink data. Therefore, the network side device should be the terminal side device. Allocate certain uplink resources. However, after the network side device receives the scheduling request SR sent by the terminal side device, due to poor network quality, the network side device does not successfully allocate uplink resources for the terminal side device, or the network side device is too busy However, in the future, it will be possible to allocate uplink resources to the terminal side device, or due to other circumstances, the network side device fails to allocate uplink resources to the terminal side device in time, which is not specifically limited here. As a result, the terminal side device will not obtain uplink resources. However, the terminal side device needs to send uplink data, so the terminal side device will initiate a random access RA to the network side device to apply for uplink resources from the network side device.

In addition to the above scenario, there is also such a scenario. When the terminal-side device needs to send uplink data, the terminal-side device sends a scheduling request SR to the network-side device to apply for uplink resources. However, when the terminal-side device has not obtained uplink resources, the terminal-side device initiates Regarding the random access preamble for beam failure recovery, the purpose of the random access preamble for beam failure recovery is to request the network side device for beam failure recovery, but may not necessarily obtain uplink resources. At this time, the appearance of the random access preamble for beam failure recovery will cause the scheduling request SR to be cancelled.

In addition to the above scenarios, there is also a scenario similar to beam failure recovery. When the terminal-side device applies for uplink resources by sending a scheduling request SR to the network-side device, and the terminal-side device has not yet obtained the uplink resource, the terminal-side device initiates a random access preamble requesting system information SI, and the request system The purpose of the random access preamble of the information SI is to request the system information SI from the network side device, but may not necessarily obtain uplink resources. At this time, the appearance of the random access preamble requesting system information SI will also cancel the sending of the scheduling request SR.

The terminal-side device in the embodiment of the present application may be an independent terminal, or may be a chip used to implement the terminal function, which is not specifically limited here. Whether as a terminal or as a chip, the terminal-side device can be manufactured, sold, or used as an independent product. In this embodiment and subsequent embodiments, only the terminal side device is taken as an example for introduction.

The network-side device in the embodiment of the present application may be an independent base station, or may be a chip for realizing the functions of the base station, which is not specifically limited here. Whether as a base station or as a chip, the network side device can be manufactured, sold, or used as an independent product. In this embodiment and subsequent embodiments, only the network side device is taken as an example for introduction.

It should be noted that the random access RA in this embodiment may be a contention-based random access RA, or it may be Random access RA based on non-competition is not specifically limited here.

The uplink data in this embodiment includes control signaling and service data, where the service data includes ultra-reliability low latency communication (URLLC) services, enhanced mobile broadband (eMBB) services, and mass machines Class communication (massive machine type communications, mMTC) services, etc., are not specifically limited here. In order to facilitate a better understanding of the solutions proposed in the embodiments of this application, the specific flow of the communication processing method in this embodiment is introduced below. As shown in FIG. 1, it is the communication processing method provided in this embodiment. The side device and the network side device perform the following steps, including the following content.

101. A terminal-side device triggers a first SR, where the triggered first SR is in a suspended state.

In this embodiment, when the terminal-side device needs to send uplink data to the network-side device, the terminal-side device can apply for uplink resources from the network-side device by means of scheduling request SR. At this time, the terminal-side device may trigger the first scheduling request SR. After the terminal-side device triggers the first SR, the first SR is in a suspended state, which means that the terminal-side device may not need to In addition, if a scheduling request is triggered, the first SR in the suspended state can be directly sent to the network side device. For details, please refer to FIG. 2A. When at time T1, the terminal-side device triggers the first SR, the area from time T1 to time T2 represents that the first SR is in a suspended state, where the time T2 refers to the terminal side The device unsuspends the first SR. About T2 time, it will be described in detail later, and the details will not be repeated here.

102. The terminal side device sends the first SR to the network side device.

In this embodiment, after the terminal side device triggers the first SR, the terminal side device may send the first SR to the network side device, and the first SR is used to request uplink resources from the network side device. After the network side device receives the first SR, the network side device can learn that the terminal side device needs to send uplink data.

In this embodiment, after the terminal side device triggers the first SR, the first SR may be aligned with the time domain of the PUCCH immediately, or there may be a certain time gap aligned with the time domain of the TOCCH. Make a limit. Therefore, in FIG. 2A, the time at which the terminal side device triggers the first SR (time T1) and the time at which the terminal side device sends the first SR to the network side device may overlap, or a certain time gap may be reserved. There are no restrictions.

103. The terminal side device sends a random access preamble to the network side device.

In this embodiment, when the terminal-side device fails to obtain the uplink resource through the first SR. For example, due to poor network quality, the network-side device has not successfully allocated uplink resources to the terminal-side device, or due to network delay, the network-side device will have time to allocate uplink resources to the terminal-side device in the future, or Some other reasons cause the network side device to be able to allocate uplink resources to the terminal side device in the future, which is not specifically limited here. At this time, the terminal side device may send a random access preamble to the network side device, and the random access preamble may be a random access preamble used to request uplink resources from the network side device.

It should be noted that the random access preamble may also be a random access preamble related to beam failure recovery. Before the beam failure recovery, the terminal side device may have triggered and sent the first SR one or more times, but due to the poor beam quality, the terminal side device did not receive the uplink authorization from the network side device, and the terminal side device detected When the beam fails, the terminal-side device sends a random access preamble for beam failure recovery to the network-side device.

The above-mentioned beam failure recovery refers to the beam failure recovery process, which includes two beam failure detection and beam failure recovery. section. Generally, the terminal-side device measures the downlink beam, and if the beam quality of the downlink beam is lower than the measurement threshold, the terminal-side device will trigger the beam failure recovery process so that the terminal-side device can switch to the new beam for data Send and receive operations.

In addition, the random access preamble may also be a random access preamble requesting system information SI. At this time, the terminal side device sends a scheduling request SR to the network side device because it needs to apply for uplink resources, and then the terminal side device needs to request the system information SI from the network side device. Therefore, the terminal side device sends a random access preamble requesting system information SI to the network side device.

It should be noted that the foregoing sending of various random access preambles will cause the terminal side device to cancel sending the first SR and cancel the suspension of the first SR, that is, end the suspension state of the first SR. For details, please refer to Figure 2A. After the terminal-side device sends a random access preamble to the network-side device, the terminal-side device will cancel the suspended first SR at time T2. After the suspended first SR is unsuspended, if the terminal side device does not re-trigger the first SR, the terminal side device will not be able to send the first SR. It should be understood that the time when the terminal side device sends the random access preamble to the network side device and the time T2 may overlap, or there may be a time delay, which is not specifically limited here.

104. The terminal side device receives a response message corresponding to the random access preamble from the network side device.

In this embodiment, after the terminal-side device sends the random access preamble to the network-side device, the network-side device can receive the random access preamble sent by the terminal-side device, so the network-side device will send the random access preamble to the network-side device. The terminal side device sends a response message corresponding to the random access preamble, and the response message corresponding to the random access preamble may indicate whether the network side device indicates an uplink resource to the terminal side device. When the response message does not indicate the uplink resource, the terminal side device executes step 105.

It should be noted that the response message corresponding to the random access preamble is not necessarily a random access response RAR, and may also include other information, which will be introduced separately as follows:

When the uplink resource is indicated in the response message:

In this embodiment, when the response message received by the terminal side device indicates an uplink resource, the terminal side device will use the uplink resource indicated in the response message to transmit uplink data to the network side device. At this time, if the amount of uplink resources obtained by the terminal-side device is sufficient to transmit uplink data, the terminal-side device will no longer send the scheduling request SR to the network-side device.

It should be understood that the uplink resource may be located in the random access response RAR in the response message, and the random access response RAR in the response message may also carry other information, for example, an indication about beam failure recovery, or The system information SI is not specifically limited here.

2. When the uplink resource is not indicated in the response message:

In this embodiment, when the uplink resource is not indicated in the response message, the response message may include other information to instruct the terminal-side device how to handle when the uplink resource is not received.

(1) The response message contains a random access response RAR:

In this embodiment, the response message sent by the network side device to the terminal side device does not include uplink resources, but the response message includes a random access response RAR, and the random access response RAR includes indication information. It is used to instruct the terminal-side device to stop sending the first SR to the network-side device within the first time period. As shown in FIG. 2B, the first time period is the SR sending prohibition period corresponding to the first SR and the first preset The sum of time. Specifically, when the terminal-side device receives the response message sent by the network-side device, the terminal-side device can know by analyzing the content carried in the response message, although the network-side device has not allocated the uplink to the terminal-side device Resource, but the random access response RAR contains indication information for configuring the first preset duration. The terminal-side device may set the first preset duration according to the instruction information, thereby achieving the purpose of setting the first duration. It should be understood that the specific form of the indication information may vary depending on the actual application environment. The indication information may be one or a group of data packets that trigger a timer, or one or a group of specific operation steps. The specific data package is not limited here. In this embodiment and subsequent embodiments, only the instruction information is taken as an example for introduction.

In this embodiment, the first preset duration is indicated in the random access response RAR. Specifically, the indication information in the random access response RAR may directly indicate the first preset duration. For example, it is indicated that the first preset duration is a waiting timer. At this time, the indication information may be the duration of a waiting timer, or may be used as a trigger source to trigger the restart of the waiting timer.

Furthermore, the terminal-side device may restart the waiting timer according to the indication information, and within the time range from restarting the waiting timer to the timeout of the waiting timer, the terminal-side device will stop retransmitting to the network-side device The first SR. As shown in Figure 2C, time t1 is the time when the terminal-side device receives the indication information in the random access response RAR. At this time, after the terminal-side device has passed an SR transmission prohibition period, the terminal-side device can restart the waiting timer. The time range from restarting the waiting timer to the timeout of the waiting timer is the first preset duration. Therefore, the time range from the waiting timer to the timeout period of the waiting timer can be adjusted to achieve the adjustment of the first preset duration. purpose. Since the first duration is the sum of the SR sending prohibition duration corresponding to the first SR and the first preset duration, the first duration can be adjusted by adjusting the first preset duration. The duration of the waiting timer can be configured by the network side device. Of course, since the waiting timer can vary depending on the actual situation, the time set by the waiting timer also depends on the network quality or the specific requirements of the terminal side device. There are differences depending on the difference, the specifics are not limited here.

In addition, when the indication information in the random access response RAR indicates the first preset duration, it can also directly indicate the number of SR configuration periods. In this case, the first preset duration is the SR configuration period. At least doubled. It should be understood that the duration of a single SR configuration period may be equal to the SR sending prohibition duration, or may be the same as the duration of other timers configured by the network side device, which is not specifically limited here. In this embodiment, the duration of the SR configuration period can be unchanged. Therefore, when the network side device indicates the number of the SR configuration period to the terminal side device, the first preset duration can be determined . It should be understood that the number of SR configuration periods may be one or more, which is not specifically limited here. For ease of understanding, the introduction is made by taking the first preset duration being 3 times the SR configuration period as an example. As shown in Figure 2D, time t1 is the time when the terminal-side device receives the indication information that the network-side device places in the random access response RAR. At this time, after the terminal-side device has passed an SR transmission prohibition period, the terminal After another 3 SR configuration cycles, the side device can reach time t2. The time t2 will be described in detail later, and the details will not be repeated here.

(2) The response message contains random access response RAR and media access control-control element MAC CE:

In this embodiment, the response message sent by the network-side device to the terminal-side device does not include uplink resources, but in addition to the random access response RAR, the response message also includes the media access control-control element MAC CE . The media access control-control element MAC CE includes instruction information for configuring the first preset duration, and the instruction information The information is used to instruct the terminal-side device to stop retransmitting the first SR to the network-side device within the preset first time period. As shown in FIG. 2B, the first time period is the SR transmission prohibition time period corresponding to the first SR and The sum of the first preset duration.

Specifically, when the terminal-side device receives the response message sent by the network-side device, the terminal-side device can know by analyzing the content carried in the response message, although the network-side device has not allocated the uplink to the terminal-side device Resource, and the network side device does not place indication information in the random access response RAR, but instead places indication information in the media control unit information MAC CE, and the terminal side device can set the first preset according to the indication information Time length, so as to achieve the purpose of setting the first time length. It should be understood that the indication information may be one or a group of data packets that trigger a timer, and it may also be one or a group of data packets that carry specific operation steps, which is not specifically limited here. In this embodiment and subsequent embodiments, only the instruction information is taken as an example for introduction.

Similar to the foregoing, the MAC CE indicates the first preset duration. Specifically, the indication information in the MAC CE may directly indicate the first preset duration. For example, similar to FIG. 2C, the first preset duration may be indicated. It is a waiting timer. At this time, the indication information can be the duration of a waiting timer, or can be used as a trigger source to trigger the restart of the waiting timer. Since the previous article has been introduced in detail, the details will not be repeated here.

In addition, when the indication information in the MAC CE indicates the first preset duration, it can also directly indicate the number of SR configuration periods. In this case, the first preset duration is at least one time of the SR configuration period. . The details are similar to those in Figure 2D described above, and the details are not repeated here.

105. In a case where the response message does not indicate uplink resources, the terminal side device stops retransmission of the first SR within the first time period.

It should be understood that the reason why the network-side device instructs the terminal-side device to stop re-sending the first SR within the first time period through the instruction information is because the network-side device receives the terminal-side device's transmission for the first time. After the first SR, the network-side device can know that the terminal-side device needs to obtain uplink resources to transmit uplink data, but the network-side device may have other transactions to process and cannot immediately allocate uplink resources to the terminal-side device. Or, when the network side device receives the first SR, the network quality is not good, and the network side device prepares to wait for the network quality to be slightly better before allocating uplink resources to the terminal side device. Therefore, the network-side device informs the terminal-side device by placing indication information in the response message that the network-side device will allocate uplink resources for the terminal-side device within the first period of time, and the terminal-side device is requested to Stop retransmitting the first SR within the first time period.

When the first duration expires and the terminal-side device is not instructed by the network-side device for the uplink resource, step 106 is performed.

106. The terminal side device resends the first SR to the network side device.

In this embodiment, if the terminal-side device does not receive the uplink resources allocated by the network-side device within the first period of time, at this time, in order to ensure the requirement of the terminal-side device to send uplink data, the terminal-side device can trigger the The first SR then sends the first SR to the network side device to apply for uplink resources. For details, please refer to FIG. 2A. From time t1 to time t2 after the first time length, if the terminal side device does not receive the uplink resource allocated by the network side device within the first time length, the terminal side device will be at time T3 When the first SR is triggered, the area after T3 represents that the first SR is in a suspended state, so the terminal side device may send the first SR in the suspended state to the network side device to apply for uplink resources.

In this embodiment, after the terminal-side device sends the first scheduling request SR to the network-side device, the network-side device It can be known that the terminal-side device needs uplink resources. If the response message received by the terminal-side device from the network-side device does not indicate uplink resources, the terminal-side device will stop the retransmission of the first SR within the first time period. Therefore, it is avoided that the terminal-side device repeatedly requests the network-side device to allocate an uplink authorization to the terminal-side device within the first time period. Therefore, this solution can save SR resources. Since the transmission of SR is reduced in the first time period, it can reduce Interference between SR resources in the first time period. The foregoing embodiment introduces the case where the indication information instructs the terminal-side device to stop retransmitting the first scheduling request SR to the network-side device within the first time period. However, in practical applications, the network-side device may not send the The terminal-side device sends a response message that carries the indication information. Instead, the response message directly instructs the terminal-side device to stop retransmitting the first SR to the network-side device within the first time period. This situation will be introduced in detail below. Please refer to Figure 3 for details. The steps performed by the terminal side device and the network side device include:

301. The terminal-side device triggers a first SR, where the triggered first SR is in a suspended state.

In this embodiment, when the terminal-side device needs to send uplink data to the network-side device, the terminal-side device can apply for uplink resources from the network-side device by means of scheduling request SR. At this time, the terminal-side device may trigger the first scheduling request SR. After the terminal-side device triggers the first SR, the first SR is in a suspended state, which means that the terminal-side device may not need to In addition, when a scheduling request is triggered, the first SR in the suspended state can be directly sent to the network side device. The details are similar to step 101, and will not be repeated here.

302. The terminal side device sends the first SR to the network side device.

In this embodiment, after the terminal side device triggers the first SR, the terminal side device may send the first SR to the network side device, and the first SR is used to request uplink resources from the network side device. After the network side device receives the first SR, the network side device can learn that the terminal side device needs to send uplink data. The details are similar to step 102 and will not be repeated here.

In this embodiment, after the terminal side device triggers the first SR, the first SR may be immediately aligned with the time domain of PUCCH, or there may be a certain time gap before it can be aligned with the time domain of PUCCH. Not limited. Therefore, in FIG. 4, the time when the terminal-side device triggers the first SR (time T1) and the time when the terminal-side device sends the first SR to the network-side device may overlap, or a certain time gap may be reserved. There are no restrictions.

303. The terminal side device sends a random access preamble to the network side device.

In this embodiment, when the terminal-side device fails to obtain the uplink resource through the first SR. For example, due to poor network quality, the network-side device has not successfully allocated uplink resources to the terminal-side device, or due to network delay, the network-side device will have time to allocate uplink resources to the terminal-side device in the future, or Some other reasons cause the network side device to be able to allocate uplink resources to the terminal side device in the future, which is not specifically limited here. At this time, the terminal-side device sends a random access preamble to the network-side device. At this time, the random access preamble may be a random access preamble used to request uplink resources from the network-side device, or may be related to beams. The random access preamble for failure recovery may also be a random access preamble for requesting system information SI, which is not specifically limited here. Since step 103 has been introduced in detail above, the details will not be repeated here.

It should be noted that the sending of the aforementioned various random access preambles will cause the terminal-side device to cancel sending the first SR and cancel the suspension of the first SR, that is, end the suspension state of the first SR. Please refer to Figure 4 for details. After the terminal-side device sends the random access preamble to the network-side device, the terminal-side device will cancel the suspended first SR at time T2. After the suspended first SR is unsuspended, if the terminal-side device If the first SR is not triggered again, the terminal-side device will not be able to send the first SR. It should be understood that the time when the terminal side device sends the random access preamble to the network side device and the time T2 may overlap, or there may be a time delay, which is not specifically limited here.

304. The terminal-side device stops counting the SR transmission prohibition period, and initializes the transmission counter of the first SR. In this embodiment, as shown in FIG. 4, after the terminal-side device sends the random access preamble to the network-side device, the terminal-side device stops counting the SR transmission prohibition period to prevent the SR transmission prohibition period from overtime And trigger the sending of the first SR. In addition, the terminal side device also initializes the transmission counter of the first SR, that is, clears the transmission counter of the first SR and prepares to count again, so as to prevent the accumulation of the transmission counter of the first SR When the number of transmissions reaches the upper limit, a random access preamble requesting uplink resources is triggered.

In some feasible implementations, the terminal-side device can restart the timing of the transmission prohibition period after sending the random access preamble to the network-side device, so that the transmission prohibition period can be timed again, which can also prevent the transmission prohibition period due to the SR. The timeout triggers the sending of the first SR.

305. The terminal side device receives a response message corresponding to the random access preamble from the network side device.

In this embodiment, after the terminal side device sends the random access preamble to the network side device, the network side device can receive the random access preamble sent by the terminal side device. Therefore, the network side device will send a response message corresponding to the random access preamble to the terminal side device, and the response message corresponding to the random access preamble can indicate whether the network side device indicates an uplink resource to the terminal side device. When the response message does not indicate the uplink resource, the terminal side device executes step 306.

In this embodiment, the response message corresponding to the random access preamble is a random access response RAR, and the random access response RAR can directly trigger the start of the timing of the SR transmission prohibition period. The random access response RAR may also directly indicate the first preset duration.

306. In a case where the response message does not indicate uplink resources, the terminal side device stops retransmission of the first SR within the first time period.

It should be understood that the reason why the network-side device instructs the terminal-side device to stop resending the first SR within the first time period through the random access response RAR is because the network-side device receives the terminal for the first time After the first SR sent by the side device, the network side device can know that the terminal side device needs to obtain uplink resources to transmit uplink data. However, the network-side device may have other transactions to process and cannot immediately allocate uplink resources to the terminal-side device, or when the network-side device receives the first SR, the network quality is poor, and the network-side device is ready, etc. When the network quality is slightly better, the uplink resources are allocated to the terminal side device. Therefore, the network-side device informs the terminal-side device through the random access response RAR that the network-side device will allocate uplink resources for the terminal-side device within the first period of time, and the terminal-side device is requested to be in the first time period. Stop retransmitting the first SR within the time period. Therefore, after the terminal-side device receives the random access response RAR sent by the network-side device, the terminal-side device can directly trigger to start the timing of the SR transmission prohibition period. Then, when the SR transmission prohibition period expires, the terminal-side device may adjust the number of SR configuration periods or wait for the timer to adjust the first preset period according to the indication of the random access response RAR, so as to adjust the The purpose of the first duration. Specifically, it is similar to step 104 in the foregoing, and will not be repeated here.

307. In a case where the first duration times out and the terminal side device is not instructed by the network side device for the uplink resource, Then the terminal side device resends the first SR to the network side device.

In this embodiment, if the terminal-side device does not receive the uplink resources allocated by the network-side device within the first period of time, at this time, in order to ensure the requirement of the terminal-side device to send uplink data, the terminal-side device can trigger the The first SR then sends the first SR to the network side device to apply for uplink resources. The details are similar to step 106, and the details are not described here because they have been introduced in detail above.

In this embodiment, after the terminal side device sends the first scheduling request SR to the network side device, the network side device can learn that the terminal side device needs uplink resources. If the response message received by the terminal-side device from the network-side device does not indicate the uplink resource, the terminal-side device will stop retransmission of the first SR within the first time period. Therefore, it is avoided that the terminal-side device repeatedly requests the network-side device to allocate uplink authorization to the terminal-side device within the first time period. Therefore, this solution can save SR resources. Since SR transmission is reduced in the first time period, the first time period is reduced. Interference between SR resources within a period of time. In addition to the foregoing embodiments, in practical applications, the terminal-side device may also send other messages to request uplink resources from the network-side device, for example, a second SR with a higher priority. This situation will be introduced in detail below. For details, please refer to Figure 5. The steps performed by the terminal side device and the network side device include:

501. A terminal-side device triggers a first SR, where the triggered first SR is in a suspended state.

502. The terminal side device sends the first SR to the network side device.

503. The terminal side device sends a random access preamble to the network side device.

In this embodiment, when the terminal-side device fails to obtain uplink resources through the first SR, for example, due to poor network quality, the network-side device does not successfully allocate uplink resources to the terminal-side device, or, Due to the network delay, the network side device will have time to allocate uplink resources to the terminal side device in the future, or due to some other reasons, the network side device will not be able to allocate uplink resources to the terminal side device in the future. Make a limit. At this time, the terminal-side device sends a random access preamble to the network-side device. The random access preamble may be a random access preamble used to request uplink resources from the network-side device, or it may be related to beam failure recovery. The random access preamble may also be a random access preamble requesting system information SI, which is not specifically limited here. Since step 103 has already been introduced in detail, the details will not be repeated here.

504. The terminal side device receives a response message corresponding to the random access preamble from the network side device.

In this embodiment, after the terminal side device sends the random access preamble to the network side device, the network side device The device can receive the random access preamble sent by the terminal-side device. Then, the network side device will send a response message corresponding to the random access preamble to the terminal side device, and the response message corresponding to the random access preamble may indicate whether the network side device indicates an uplink resource to the terminal side device. When the response message does not indicate the uplink resource, the terminal side device executes step 505.

505. In a case where the response message does not indicate uplink resources, the terminal side device stops retransmission of the first SR within the first time period.

It should be understood that the reason why the network-side device instructs the terminal-side device to stop resending the first SR within the first time period through the random access response RAR is because the network-side device receives the terminal for the first time After the first SR sent by the side device, the network side device can know that the terminal side device needs to obtain uplink resources to transmit uplink data. However, the network-side device may have other transactions to process and cannot immediately allocate uplink resources to the terminal-side device, or when the network-side device receives the first SR, the network quality is poor, and the network-side device is ready, etc. When the network quality is slightly better, the uplink resources are allocated to the terminal side device. Therefore, the network-side device informs the terminal-side device through the random access response RAR that the network-side device will allocate uplink resources for the terminal-side device within the first period of time, and the terminal-side device is requested to be in the first time period. Stop retransmitting the first SR within the time period. Therefore, after the terminal-side device receives the random access response RAR sent by the network-side device, the terminal-side device can directly trigger to start the timing of the SR transmission prohibition period. Then, when the SR transmission prohibition period expires, the terminal-side device may adjust the number of SR configuration periods or the length of the waiting timer according to the instructions of the random access response RAR to adjust the first preset period, so as to adjust the The purpose of the first duration. Specifically, it is similar to step 104 in the foregoing, and will not be repeated here.

506. In a case where the response message does not indicate an uplink resource, the terminal-side device sends a second SR to the network-side device, where the priority of the second SR is higher than the priority of the first SR.

In this embodiment, when the response message does not indicate the uplink resource, the terminal side device may not only stop the retransmission of the first SR within the first period of time, but also send the message to the network side device. Send a second SR, the priority of the second SR is higher than the priority of the first SR. It should be understood that the priority of the second SR is higher than the priority of the first SR refers to when the network side device is faced with a decision between the first SR for processing normal priority and the second SR for processing high priority , The network side device will preferentially process the second SR.

Specifically, the terminal-side device sends the second SR to the network-side device after the second duration, where the second duration is a duration greater than or equal to zero. As shown in FIG. 6A, when the second duration is equal to zero, it means that when the terminal-side device receives a response message sent by the network-side device and determines that the response message does not indicate an uplink resource, the terminal-side device triggers the The second SR. Therefore, the second SR is in a suspended state, and then the terminal-side device sends the second SR to the network-side device at time T4. It should be understood that, in FIG. 6A, the time when the network side device sends the response message to the terminal side device and the time when the terminal side device sends the second SR to the network side device (time T4) may overlap, or there may be reasonable The network delay is not limited here.

As shown in FIG. 6B, when the second duration is a non-zero duration between t3 and t4 in the figure, after the terminal-side device receives the response message sent by the network-side device, the terminal-side device triggers information about the second Time duration. After the second duration, the terminal-side device triggers the second SR. Then, the second SR is in a suspended state. Then, the terminal-side device sends the second SR to the network-side device at time T5. The second SR.

It should be noted that in this embodiment, step 505 and step 506 are not limited in time sequence, and the terminal The side device may first perform step 505 and then perform step 506, or may first perform step 506 and then perform step 505, which is not specifically limited here.

In this embodiment, after the terminal side device sends the first scheduling request SR to the network side device, the network side device can learn that the terminal side device needs uplink resources. If the response message received by the terminal-side device from the network-side device does not indicate the uplink resource, the terminal-side device will stop retransmission of the first SR within the first time period. In addition, the terminal-side device will send a second SR with a higher priority to the network-side device. Therefore, it is avoided that the terminal-side device repeatedly requests the network-side device to allocate an uplink authorization to the terminal-side device within the first time period. It can also make the network side device preferentially allocate uplink resources to the terminal side device. Therefore, this solution can save SR resources, and because it reduces the transmission of SR in the first time period, the interference generated between SR resources is reduced. In the foregoing embodiment, after the terminal-side device sends the random access preamble to the network-side device, the terminal-side device will end the suspension state of the first SR. However, in this embodiment, an implementation manner is proposed that can save the scheduling request resource without canceling the suspension of the first SR. This situation will be introduced in detail below. Please refer to Figure 7 for details. The steps performed by the terminal side device and the network side device include:

701. A terminal-side device triggers a first SR, where the triggered first SR is in a suspended state.

702. The terminal side device sends the first SR to the network side device.

703. The terminal side device sends a random access preamble to the network side device.

In this embodiment, when the terminal-side device fails to obtain uplink resources through the first SR, for example, due to poor network quality, the network-side device does not successfully allocate uplink resources to the terminal-side device, or, Due to the network delay, the network-side device will not be able to allocate uplink resources to the terminal-side device in the future, or due to some other reasons, the network-side device will not be able to allocate uplink resources to the terminal-side device in the future. Make a limit. At this time, the terminal side device sends a random access preamble to the network side device, and the random access preamble may be a random access preamble used to request uplink resources from the network side device, or it may be related to wave failure recovery The random access preamble may also be a random access preamble requesting system information SI, which is not specifically limited here. Since step 103 has already been introduced in detail, the details will not be repeated here.

704. The terminal-side device maintains the suspended state of the first SR.

In this embodiment, after the terminal side device sends the random access preamble to the network side device, the terminal side device will not unsuspend the first SR, that is, the terminal side device will keep the first SR. The suspended state of an SR. Therefore, if the terminal side device needs to send the first SR again, the terminal side device does not need to trigger the first SR again. As shown in FIG. 8, after the terminal-side device triggers the first SR at time T1, the first SR will remain in a suspended state until the network-side device allocates uplink resources to the terminal-side device.

705. The terminal side device receives a response message corresponding to the random access preamble from the network side device.

In this embodiment, after the terminal side device sends the random access preamble to the network side device, the network side device may receive the random access preamble sent by the terminal side device. Then, the network side device will send a response message corresponding to the random access preamble to the terminal side device, and the response message corresponding to the random access preamble may indicate whether the network side device indicates an uplink resource to the terminal side device. When the response message does not indicate the uplink resource, the terminal-side apparatus performs step 706 _o

706. In a case where the response message does not indicate an uplink resource, the terminal-side device stops retransmission of the first SR within the first time period.

It should be understood that the reason why the network-side device instructs the terminal-side device to stop resending the first SR within the first time period through the random access response RAR is because the network-side device receives the terminal for the first time After the first SR sent by the side device, the network side device can know that the terminal side device needs to obtain uplink resources to transmit uplink data, but the network side device may have other transactions to process and cannot immediately allocate to the terminal side device Uplink resources, or, when the network side device receives the first SR, the network quality is not good, and the network side device is ready to wait for the network quality to be slightly better before allocating uplink resources to the terminal side device. Therefore, the network-side device informs the terminal-side device through the random access response RAR that the network-side device will allocate uplink resources for the terminal-side device within the first period of time, and the terminal-side device is requested to be in the first time period. Stop retransmitting the first SR within the time period. Therefore, after the terminal-side device receives the random access response RAR sent by the network-side device, the terminal-side device can directly trigger to start the timing of the SR transmission prohibition period. Then, when the SR transmission prohibition period expires, the terminal-side device may adjust the number of SR configuration periods or wait for the timer to adjust the first preset period according to the indication of the random access response RAR, so as to adjust the The purpose of the first duration. Specifically, it is similar to step 104 in the foregoing, and will not be repeated here.

707. If the terminal-side device is not indicated by the network-side device of the uplink resource, the terminal-side device retransmits the first SR in the suspended state to the network-side device.

In this embodiment, if the terminal-side device receives the response message sent by the network-side device, and after the first time period has elapsed, the network-side device still does not allocate uplink resources to the terminal-side device, so the terminal The side device resends the first SR in the suspended state to the network side device.

In this embodiment, after the terminal side device sends the first scheduling request SR to the network side device, the network side device can learn that the terminal side device needs uplink resources. If the response message received by the terminal-side device from the network-side device does not indicate uplink resources, the terminal-side device will stop the retransmission of the first SR within the first time period. Therefore, it is avoided that the terminal-side device repeatedly requests the network-side device to allocate the uplink authorization to the terminal-side device within the first period of time, and when the first period of time ends, the terminal-side device directly sends the suspended state to the network side. The first SR. Therefore, this solution can save SR resources. Since the transmission of SRs in the first time period is reduced, the interference generated between SR resources in the first time period is reduced. The method proposed in the embodiment of the present application has been introduced above, and the following will describe the operation of the terminal-side device that executes the method. The specific structure is introduced. The structure of the terminal-side device may be as shown in FIG. 9, and mainly includes a processor 901, an input/output device 902, and a memory.

Wherein, the processor 901 may include circuits for audio/video and logic functions of the terminal side device 90. For example, the processor 901 may include a digital signal processor device, a microprocessor device, an analog-to-digital converter, a digital-to-analog converter, and so on. The control and signal processing functions of mobile devices can be distributed among these devices according to their respective capabilities. The processor 901 may also include an internal voice encoder VC, an internal data modem DM, and so on. In addition, the processor 901 may include a function of operating one or more software programs, and the software programs may be stored in a memory. Generally, the processor 901 and the stored software instructions may be configured to cause the terminal-side device to perform actions. In this embodiment, the terminal-side device 90 further includes an input/output device 902, which is used to perform the sending action in the foregoing step 102, step 103, and step 106, and the receiving action in step 104. It should be understood that the input/output device 902 in this embodiment refers to an input device or an output device. Generally, the input device performs a receiving action, and the output device performs a sending action. At this time, the processor 901 is configured to process the data to be sent or received by the input/output device 902, specifically including: the trigger action in step 101, and the action of stopping the re-sending of the first SR in step 105, etc. .

In some feasible implementation manners, the input/output device 902 may also be used to perform the sending action in step 302, step 303, and step 307, and the receiving action in step 305. In such an implementation, the processor 901 is configured to process the data to be sent or received by the input/output device 902, specifically including: the triggering action in step 301, and the stopping action in step 304 and step 306, and so on.

In some other feasible implementation manners, the input/output device 902 may also be used to perform the sending action in step 502, step 503, and step 506, and the receiving action in step 504. In such an embodiment, the processor 901 is configured to process the data to be sent or received by the input/output device 902, specifically including: the triggering action in step 501, the stopping action in step 505, and so on.

In practical applications, there may also be an implementation manner in which the input/output device 902 is configured to perform the sending action in the foregoing step 702, step 703, and step 707, and the receiving action in step 705. In such an embodiment, the processor 901 is configured to process the data to be sent or received by the input/output device 902, specifically including: a triggering action in step 701, a holding action in step 704, and a step 706 Stop action, etc.

In addition, the terminal-side device 90 may also include a user interface, which may include a speaker 9031 or a microphone 9032, etc., and is operatively coupled to the processor 901. At this point, the processor 901 may include a user interface circuit, which is configured to control at least some functions of one or more elements of the user interface. The processor 901 and/or the user interface circuit including the processor 901 may be configured to control one or more of the user interface through computer program instructions (such as software and/or firmware) stored in a memory accessible by the processor 901 One or more functions of the element. Although not shown, the terminal-side device 90 may include a battery for supplying power to various circuits related to the mobile device, such as a circuit that provides mechanical vibration as a detectable output. The terminal side device 90 may also include one or more connection circuit modules for sharing and/or obtaining data. For example, the terminal side device 90 may include a transmitter 9041 and a receiver 9042, so as to realize the function of sending and receiving data. The terminal device 90 may include a volatile memory 9051 and/or a non-volatile memory 9052. For example, the volatile memory 9051 may include random access memory RAM, which includes dynamic RAM and/or static RAM, on-chip and/or off-chip cache memory, and so on. The non-volatile memory 9052 may be embedded and/or removable, and it may include, for example, read-only memory, flash memory, and magnetic Storage devices, such as hard disks, floppy disk drives, magnetic tapes, etc., optical disk drives and/or media, non-volatile random access memory NVRAM, etc. Similar to the volatile memory 9051, the nonvolatile memory 9052 may include a cache area for temporary storage of data. At least a part of the volatile and/or non-volatile memory may be embedded in the processor 901. The memory may store one or more software programs, instructions, information blocks, data, etc., which may be used by the terminal-side device 90 to perform functions of the mobile terminal-side device.

It should also be understood that, in the method embodiment corresponding to FIG. 1 or FIG. 3 or FIG. 5 or FIG. 7, all steps performed by the terminal-side device may be based on the structure of the terminal-side device 90 shown in FIG.

In the embodiment of this application, after the terminal-side device sends the first scheduling request SR to the network-side device, the network-side device can learn that the terminal-side device needs uplink resources. If the terminal-side device receives a reply from the network-side device If the response message does not indicate the uplink resource, the terminal-side device will stop re-sending the first SR within the first time period. Therefore, the terminal-side device is prevented from repeatedly requesting the network-side device to the terminal side within the first time period. The device allocates uplink resources. Therefore, this solution can save SR resources. Since SR transmission within the first time period is reduced, the interference between SR resources is reduced. The terminal side device in this embodiment is described above, and the network side device in this embodiment is introduced below. As shown in FIG. 10, it is a schematic structural diagram of a network side device 100 provided in this embodiment. 100 may have relatively large differences due to different configurations or performances, and may include one or more processors 1001 and memory 1002, and one or more storage media 1003 for storing application programs or data (for example, one or one storage device with a large amount of storage) . Among them, the memory 1002 and the storage medium 1003 may be short-term storage or permanent storage. The network side device 100 further includes one or more input/output devices 1005, and input/output devices 1005, which are used to perform the receiving actions in step 102, step 103, and step 106, and the sending action in step 104. It should be understood that the input/output device 1005 in this embodiment refers to an input device or an output device. Generally, the input device performs a receiving action, and the output device performs a sending action. At this time, the processor 1001 is configured to process data to be sent or received by the input/output device 1005, for example, determining to send a response message corresponding to the random access preamble to the terminal side device.

In some feasible implementation manners, the input/output device 1005 may also be used to perform the receiving action in step 302, step 303, and step 307, and the sending action in step 305. In such an implementation manner, the processor 1001 is configured to process data to be sent or received by the input/output device 1005, for example, determining to send a response message corresponding to the random access preamble to the terminal side device.

In some other feasible implementation manners, the input/output device 1005 may also be used to perform the receiving actions in step 502, step 503, and step 506, and the sending action in step 504. In such an implementation manner, the processor 1001 is configured to process data to be sent or received by the input/output device 1005, for example, determining to send a response message corresponding to the random access preamble to the terminal side device.

In practical applications, there may also be an implementation manner in which the input/output device 1005 is used to perform the receiving actions in step 702, step 703, and step 707, and the sending action in step 705. In such an implementation manner, the processor 1001 is configured to process data to be sent or received by the input/output device 1005, for example, determining to send a response message corresponding to the random access preamble to the terminal side device.

It should be understood that the network side device 100 may also include one or more power supplies 1004, and/or, one or one More than one operating system, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc. It should also be understood that, in the method embodiment corresponding to FIG. 1 or FIG. 3 or FIG. 5 or FIG. 7, the steps performed by the network side device may be based on the structure of the network side device 100 shown in FIG. 10.

In the embodiment of the present application, after the network side device receives the random access preamble sent by the terminal side device, the network side device sends a response message corresponding to the random access preamble to the terminal side device, and the response message is used for When the indication message does not indicate the uplink resource, instruct the terminal-side device to stop the retransmission of the first SR within the first time period. Therefore, it is avoided that the terminal side device repeatedly requests the network side device to allocate uplink resources to the terminal side device within the first time period. Therefore, this solution can save SR resources and reduce interference between SR resources.

Those skilled in the art can clearly understand that, for convenience and brevity of description, the specific working process of the system, device, and unit described above can refer to the corresponding process in the foregoing method embodiment, which is not repeated here.

The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

Rights request

1. A communication processing method, characterized in that it comprises:

The terminal side device sends the first scheduling request SR and the random access preamble to the network side device;

The terminal-side device receives a response message corresponding to the random access preamble from the network-side device; in the case that the response message does not indicate uplink resources, the terminal-side device stops the Resending the first SR, where the first duration is the sum of the SR transmission prohibition duration corresponding to the first SR and the first preset duration.

2. The method according to claim 1, wherein the random access preamble comprises a random access preamble for beam failure recovery or a random access preamble for requesting system information.

3. The method according to claim 1 or 2, wherein the response message is a random access response, and the first preset duration is indicated in the random access response.

4. The method according to claim 3, wherein the random access response indicates that the first preset duration is at least one time of the SR configuration period.

5. The method according to claim 1 or 2, wherein the response message includes a random access response and a medium access control-control element MAC CE, and the MAC CE indicates the first preset duration.

6. The method according to claim 5, wherein the MAC CE indicates that the first preset duration is at least one time of the SR configuration period.

7. The method according to claim 1 or 2, wherein the method further comprises:

In the case that the response message does not indicate the uplink resource, the terminal-side device sends a second SR to the network-side device, and the priority of the second SR is higher than the priority of the first SR.

8. The method according to claim 1, wherein the method further comprises:

After the terminal-side device sends the random access preamble to the network-side device, stop counting the SR transmission prohibition period, and initialize the transmission counter of the first SR;

After the terminal-side device receives the response message sent by the network-side device, it starts the timing of the SR transmission prohibition period;

In a case where the first duration expires and the terminal-side device is not instructed by the network-side device of the uplink resource, the terminal-side device resends the first SR to the network-side device.

9. The method according to claim 1, wherein the method further comprises:

Before the terminal-side device sends the first SR to the network-side device, the terminal-side device triggers the first SR, where the triggered first SR is in a suspended state;

After the terminal-side device sends the random access request to the network-side device, the terminal-side device maintains the suspended state of the first SR;

After the terminal-side device receives the response message sent by the network-side device, if the terminal-side device does not indicate the uplink resource by the network-side device, the terminal-side device sends the message to the network The side device resends the first SR in the suspended state.

10. The method according to claim 4 or 6, wherein the SR configuration period is an SR transmission prohibition period.

11. A communication processing method, characterized in that it comprises:

The network side device receives the first scheduling request SR and the random access preamble sent by the terminal side device;

The network side device sends a response message corresponding to the random access preamble to the terminal side device, where the response message is used to indicate that the terminal side device is in the first position when the indication message does not indicate uplink resources. Stop the retransmission of the first SR within the time period, where the first time period is the sum of the SR transmission prohibition time period corresponding to the first SR and the first preset time period.

12. The method according to claim 11, wherein the random access preamble comprises a random access preamble for beam failure recovery or a random access preamble for requesting system information.

13. The method according to claim 11 or 12, wherein the response message is a random access response, and the first preset duration is indicated in the random access response.

14. The method according to claim 13, wherein the random access response indicates that the preset duration is at least one time of the SR configuration period.

15. The method according to claim 11 or 12, wherein the response message includes a random access response and a medium access control-control element MAC CE, and the MAC CE indicates the first preset duration.

16. The method according to claim 15, wherein the MAC CE indicates that the first preset duration is at least one time of the SR configuration period.

17. The method according to claim 11 or 12, wherein the method further comprises:

Receiving, by the network side device, a second SR sent by the terminal side device, where the priority of the second SR is higher than the priority of the first SR;

The network side device sends the uplink resource to the terminal side device according to the second SR.

18. The method according to claim 14 or 16, wherein the SR configuration period is the SR transmission prohibition duration.

19. A terminal-side device, characterized in that it includes:

Processor, and input/output devices;

The input/output device is configured to send a first scheduling request SR and a random access preamble to a network-side device; the input/output device is also configured to receive a corresponding random access preamble from the network-side device Response message

The processor is configured to execute the following steps:

In the case that the response message does not indicate the uplink resource, the processor determines to stop retransmission of the first SR within a first time period, where the first time period is the SR corresponding to the first SR The sum of the sending prohibited duration and the first preset duration.

20. The terminal-side device according to claim 19, wherein the random access preamble comprises a random access preamble for beam failure recovery or a random access preamble for requesting system information.

21. The terminal-side device according to claim 19 or 20, wherein the response message is a random access response, and the first preset duration is indicated in the random access response.

22. The terminal-side device according to claim 21, wherein the random access response indicates that the first preset duration is at least one time of the SR configuration period.

23. The terminal device according to claim 19 or 20, wherein the response message includes a random access response and a medium access control-control element MAC CE, and the MAC CE indicates the first preset duration.

24. The terminal-side device according to claim 23, wherein the MAC CE indicates that the first preset duration is at least one time of the SR configuration period.

25. The terminal side device according to claim 19 or 20, wherein the input/output device is further configured to send to the network side device when the response message does not indicate uplink resources The second SR, the priority of the second SR is higher than the priority of the first SR.

26. The terminal side device according to claim 19, characterized in that:

The processor is further configured to, after sending the random access preamble to the network side device, stop counting the SR transmission prohibition period, and initialize the transmission counter of the first SR;

The processor is further configured to, after receiving the response message sent by the network side device, start the timing of the SR sending prohibition duration;

The input/output device is further configured to resend the first time period to the network-side device when the first time period expires and the terminal-side device has not indicated the uplink resource by the network-side device One SR.

27. The terminal-side device according to claim 19, characterized in that:

The processor is further configured to trigger the first SR before the terminal side device sends the first SR to the network side device, where the triggered first SR is in a suspended state;

The processor is further configured to maintain the suspended state of the first SR after the terminal side device sends the random access preamble to the network side device;

The input/output device is further configured to, after the terminal-side device receives the response message sent by the network-side device, if the terminal-side device has not indicated the uplink resource by the network-side device, Then resending the first SR in the suspended state to the network side device.

28. A network side device, characterized in that it includes:

Processor, and input/output devices;

The input/output device is configured to receive a first scheduling request SR and a random access preamble sent by a terminal side device; the processor is configured to determine to send a response corresponding to the random access preamble to the terminal side device Message, the response message is used to instruct the terminal-side device to stop retransmission of the first SR within a first duration when the indication message does not indicate an uplink resource, where the first duration is all The sum of the SR sending prohibition duration corresponding to the first SR and the first preset duration.

29. The network side device according to claim 28, characterized in that:

The input/output device is further configured to receive a second SR sent by the terminal-side device, where the priority of the second SR is higher than the priority of the first SR;

The input/output device is further configured to send the uplink resource to the terminal side device according to the second SR.

30. A communication system, characterized in that it includes:

Terminal-side equipment and network-side equipment;

The terminal-side device executes the method according to any one of claims 1 to 10;

The network side device executes the method according to any one of claims 11-18.