CN109699063B - Processing and sending method of preemption indication signaling, terminal and base station - Google Patents

Abstract

Embodiments of the present invention disclose a method for processing and sending preemption indication signaling, a terminal, and a base station. In the method, the base station generates preemption indication signaling carrying control resource allocation information of a first service, and the preemption indication signal The command is sent to the terminal configured to receive the preemption indication signaling. After the terminal receives the preemption indication signaling, if the transmission of the first service of other terminals by the base station does not affect the processing of the second service by the local terminal, the resource space where the local terminal monitors the signaling is replaced with the preset resource space. Resource space not occupied by control resources corresponding to the first service. In this method, the control resource allocation information of the first service is introduced, and under the condition that the second service processed by the local terminal is not affected, the resource space of the local terminal monitoring signaling is reduced to the monitoring resource space, thereby avoiding the need for the entire preset resource. The problem of excessive downlink channel monitoring burden brought about by space monitoring reduces power consumption.

Description

A kind of processing and sending method of preemption indication signaling, terminal and base station

technical field

Embodiments of the present invention relate to the field of communications technologies, and in particular, to a method, a terminal, and a base station for processing and sending preemption indication signaling.

Background technique

Because the allocation method in the form of static or semi-static independent resource division is used to manage the resources of the eMBB service terminal and the URLLC service terminal (for example, the multiplexing method of independent frequency domain resource division) will inevitably result in lower resource utilization. The service terminal and the URLLC service terminal adopt the dynamic resource sharing management method, that is, due to the low latency requirement of the URLLC service, this technology actually means that the URLLC service can be preempted, punched, or superimposed in the eMBB service resource at a Mini-slot granularity. A technology for sharing transmission with eMBB services. This technology can enable the 5G system to simultaneously provide reliable services that meet the expected indicators of 5G for services with different latency, reliability and transmission efficiency requirements. For dynamic resource sharing between downlink eMBB service terminals and URLLC service terminals, a resource indication physical layer control signaling, ie preemption indication signaling, is introduced.

According to the research of the 3GPP working group on how to ensure the high reliability of the URLLC service while achieving low latency (including how to achieve high reliability of the uplink and downlink control channels), it is considered that the downlink control channel carrying the downlink scheduling command (PDCCH) How to ensure reliability mainly has the following three methods: (1) Increase the aggregation level of PDCCH signaling (currently, the aggregation level specified by 3GPP NR is {1, 2, 4, 8}. If it is necessary to ensure the above URLLC service scheduling For the reliability below a single time, for cell edge users, the aggregation level needs to be extended to support 16 or 32); (2) reduce the length of the PDCCH scheduling signaling, considering the low latency requirement of the URLLC service, the URLLC service needs to use short-term high-bandwidth spectrum resources As a result of the scheduling, the URLLC service frequency resources can use a relatively coarse indication granularity, which can limit the length of the PDCCH scheduling signaling; (3) The continuous repetition or multiple transmission technology is used. The application of this technology obviously contradicts the low delay requirement. The application is more limited.

On the one hand, because of the low latency requirement for URLLC users in the cell, the aggregation level of URLLC’s downlink scheduling PDCCH may be 8; on the other hand, URLLC’s downlink scheduling signaling cannot be too short, if it is too short, the short code length The code gain of the channel coding will be relatively low, which affects the reliability of the downlink scheduling channel. In this way, even for a URLLC user in a cell, the overhead of its downlink control channel is relatively large. PDCCH signaling with a higher aggregation level not only has the problem of high resource overhead, but also increases the blocking rate of control resource allocation to other users due to the allocation priority of URLLC service resources and control resources. The increase of the blocking rate means that the scheduling opportunities/transmission rates of eMBB users in the cell decrease, which also wastes cell resources, lowers the utilization rate of radio resources, and increases the unnecessary power consumption of users in the cell for scheduling signaling monitoring.

In addition, the trigger time of the URLLC service is completely random, and the URLLC service resources are scheduled with high-bandwidth frequency resources, so that in actual operation, most terminals in the cell need to monitor the signaling of the preemption indication principle, resulting in the URLLC service and eMBB service. In the case of concurrency, the terminal will have a large instantaneous increase in the monitoring burden of the PDCCH channel, and the unnecessary power consumption will increase.

Therefore, in the process of implementing the embodiments of the present invention, the inventor found that in the existing system in which the URLLC service and the eMBB service are shared, most terminals need to monitor the signaling of the preemption indication principle, and the monitoring burden on the PDCCH channel is too large. , consumes more power.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is how to solve the problem that in the existing URLLC service and eMBB service sharing system, most terminals need to monitor the signaling of the preemption indication principle, the PDCCH channel monitoring burden is too large, and the power consumption is too much. .

In view of the above technical problems, embodiments of the present invention provide a method for processing preemption indication signaling, including:

After receiving the preemption instruction signaling corresponding to the first service, according to the preemption instruction signaling, determine whether the local terminal meets the conditions for processing the preemption instruction signaling;

If it is determined that the local terminal does not meet the conditions for processing the preemption instruction signaling, then according to the preemption instruction signaling, determine whether the processing of the preset second service by the local terminal is affected;

If it is determined that the processing of the second service by the local terminal is not affected, the first resource space occupied by the control resources corresponding to the first service is obtained according to the control resource allocation information in the preemption instruction signaling, Using the resource space that is not occupied by the first resource space in the preset resource space as the monitoring resource space for the local terminal to monitor signaling;

Wherein, the preemption instruction signaling is signaling that carries the service resource allocation information of the first service and the control resource allocation information, and the preset resource space is the resource space corresponding to the downlink channel used for sending control resources and signaling resource space.

Optionally, judging whether the processing of the preset second service by the local terminal is affected according to the preemption indication signaling includes:

obtaining, according to the service resource allocation information, a second resource space occupied by service resources corresponding to the first service, and obtaining a third resource space occupied by service resources corresponding to the second service received by the local terminal;

Determine whether the second resource space and the third resource space have overlapping overlapping resource spaces, and if so, determine that the processing of the second service by the local terminal is affected, and store the preemption indication signaling , otherwise, it is judged that the processing of the second service by the local terminal is not affected.

Optionally, also include:

If the processing of the second service by the local terminal is affected, determine the overlapping resource space according to the preemption indication signaling and the third resource space, and obtain the first received in the overlapping resource space. 2. The business resources of the business, as the affected business resources, amend the affected business resources to obtain the corrected business resources;

In the service resources of the second service, the affected service resources are replaced with the revised service resources to obtain the revised service resources of the second service.

Optionally, the determining whether the local terminal meets the conditions for processing the preemption indication signaling according to the preemption indication signaling includes:

According to the pre-received downlink service scheduling signaling, the resource space occupied by the service resources used by the local terminal to receive the service to be processed is obtained as the original resource space, and the service resource allocation information is obtained according to the service resource allocation information. the second resource space;

If the original resource space and the second resource space are the same, it is determined that the local terminal meets the conditions for processing the preemption indication signaling; otherwise, it is determined that the local terminal does not conform to the preemption indication signaling. conditions for processing.

In a second aspect, an embodiment of the present invention provides a method for sending preemption indication signaling, including:

generating instruction signaling carrying service resource allocation information and control resource allocation information corresponding to the first service, as preemption instruction signaling;

The terminal configured to monitor the preemption indication signaling sends the preemption indication signaling to the terminal configured to monitor the preemption indication signaling through a preset resource space;

The preset resource space is a resource space used for sending control resources and signaling in the resource space corresponding to the downlink channel.

Optionally, the format of the preemption indication signaling is the same as that of the common signaling.

In a third aspect, an embodiment of the present invention provides a terminal for processing preemption indication signaling, including:

a first judging module, configured to, after receiving the preemption indication signaling corresponding to the first service, judge whether the local terminal meets the conditions for processing the preemption indication signaling according to the preemption indication signaling;

A second judging module, configured to judge, according to the preemption indication signaling, whether the local terminal has processed the preset second service if it is judged that the local terminal does not meet the conditions for processing the preemption indication signaling is affected;

The processing module is configured to obtain, according to the control resource allocation information in the preemption instruction signaling, the control resource occupied by the control resource corresponding to the first service if it is determined that the processing of the second service by the local terminal is not affected. a first resource space, using a resource space in the preset resource space that is not occupied by the first resource space as a monitoring resource space for the local terminal to monitor signaling;

Wherein, the preemption instruction signaling is signaling that carries the service resource allocation information of the first service and the control resource allocation information, and the preset resource space is the resource space corresponding to the downlink channel used for sending control resources and signaling resource space.

Optionally, the second judging module is further configured to obtain, according to the service resource allocation information, the second resource space occupied by the service resources corresponding to the first service, and obtain the second resource space received by the local terminal. The third resource space occupied by the service resources corresponding to the two services; determine whether there is overlapping overlapping resource space between the second resource space and the third resource space; If the processing of the second service is affected, the preemption indication signaling is stored; otherwise, it is determined that the processing of the second service by the local terminal is not affected.

Optionally, the second judgment module is further configured to determine the overlapping resource space according to the preemption indication signaling and the third resource space if the processing of the second service by the local terminal is affected. , obtain the service resource of the second service received in the overlapping resource space, and use it as the affected service resource, modify the affected service resource, and obtain the revised service resource; in the service resource of the second service , and replace the affected service resource with the revised service resource to obtain the revised service resource of the second service.

Optionally, the first judgment module is further configured to acquire, according to the pre-received downlink service scheduling signaling, the resource space occupied by the service resources used by the local terminal for receiving the service to be processed, as the original resource space. , and obtain the second resource space according to the service resource allocation information; if the original resource space and the second resource space are the same, it is determined that the local terminal is in compliance with the processing of the preemption indication signaling conditions, otherwise, it is determined that the local terminal does not meet the conditions for processing the preemption indication signaling.

In a fourth aspect, an embodiment of the present invention provides a base station for sending preemption indication signaling, including:

a generating module, configured to generate instruction signaling carrying service resource allocation information and control resource allocation information corresponding to the first service, as preemption instruction signaling;

a sending module, configured to configure a terminal that monitors the preemption indication signaling, and sends the preemption indication signaling to a terminal configured to monitor the preemption indication signaling through a preset resource space;

The preset resource space is a resource space used for sending control resources and signaling in the resource space corresponding to the downlink channel.

In a fifth aspect, an embodiment of the present invention provides a terminal, including:

at least one processor, at least one memory, a communication interface, and a bus; wherein,

The processor, the memory, and the communication interface communicate with each other through the bus;

The communication interface is used for information transmission between the terminal and the communication equipment of the base station;

The memory stores program instructions executable by the processor, and the processor invokes the program instructions to execute any one of the above processing methods for preemption indication signaling.

In a sixth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium stores computer instructions, the computer instructions cause the computer to execute any one of the above Item preemption indication signaling processing method.

In a fifth aspect, an embodiment of the present invention provides a base station, including:

at least one processor, at least one memory, a communication interface, and a bus; wherein,

The processor, the memory, and the communication interface communicate with each other through the bus;

The communication interface is used for information transmission between the terminal and the communication equipment of the base station;

The memory stores program instructions executable by the processor, and the processor invokes the program instructions to execute any one of the above methods for sending preemption indication signaling.

In a sixth aspect, embodiments of the present invention provide a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, the computer instructions cause the computer to execute any of the above preemption Indicates the sending method of signaling.

Embodiments of the present invention provide a method for processing and sending preemption indication signaling, a terminal, and a base station. In the method, the base station generates preemption indication signaling that carries control resource allocation information of a first service, and the preemption indication signal The command is sent to the terminal configured to receive the preemption indication signaling. After the terminal receives the preemption indication signaling, if the preemption indication signaling does not affect the processing of the second service by the local terminal, the resource space in which the local terminal monitors the signaling is replaced by a preset resource space that is not used for the first service. The resource space occupied by the corresponding control resource. In this method, the base station introduces the control resource allocation information of the first service in the process of issuing the preemption instruction signaling, and reduces the resource space of the local terminal monitoring signaling to The monitoring resource space in the preset resource space that is not occupied by the control resource corresponding to the first service avoids the problem of excessive downlink channel monitoring burden caused by monitoring the entire preset resource space, thereby reducing power consumption.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic flowchart of a method for processing preemption indication signaling provided by an embodiment of the present invention;

2 is a structural block diagram of a terminal for processing preemption indication signaling provided by another embodiment of the present invention;

3 is a schematic flowchart of a method for sending preemption indication signaling provided by another embodiment of the present invention;

4 is a schematic diagram of a signaling format of a preemption instruction command provided by another embodiment of the present invention;

5 is a structural block diagram of a base station for sending preemption indication signaling provided by another embodiment of the present invention;

6 is a schematic flowchart of a process of sending and using preemption indication signaling provided by another embodiment of the present invention;

7 is a structural block diagram of a terminal provided by another embodiment of the present invention;

FIG. 8 is a structural block diagram of a base station according to another embodiment of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

FIG. 1 is a schematic flowchart of a method for processing preemption indication signaling provided by this embodiment. Referring to FIG. 1 , the method includes:

101: After receiving the preemption indication signaling corresponding to the first service, according to the preemption indication signaling, determine whether the local terminal meets the conditions for processing the preemption indication signaling;

102: If it is determined that the local terminal does not meet the conditions for processing the preemption instruction signaling, then according to the preemption instruction signaling, determine whether the processing of the preset second service by the local terminal is affected;

103: If it is determined that the processing of the second service by the local terminal is not affected, obtain the first resource occupied by the control resource corresponding to the first service according to the control resource allocation information in the preemption instruction signaling space, the resource space in the preset resource space that is not occupied by the first resource space is used as the monitoring resource space for the local terminal to monitor signaling;

Wherein, the preemption instruction signaling is signaling that carries the service resource allocation information of the first service and the control resource allocation information, and the preset resource space is the resource space corresponding to the downlink channel used for sending control resources and signaling resource space.

It should be noted that, the method provided in this embodiment is executed by a terminal (for example, a mobile phone, a computer). The preemption indication signaling is sent by the base station to the terminal. Usually, this method is applicable to the case where two services are shared and transmitted, for example, the eMBB service and the URLLC service are shared and transmitted, the first service is the URLLC service, and the second service is the eMBB service. That is, the terminal managed by the base station handles both the eMBB service and the URLLC service. The resource space refers to the time-domain space and the frequency-domain space.

The preemption indication signaling is signaling carrying service resource allocation information and control resource allocation information of the first service. The service resource allocation information specifies the resource space in the downlink channel (for example, PDCCH) occupied by the service resource transmission of the first service. For example, the service resource allocation information specifies the service resource transmission of the first service. The resource space in the downlink channel occupied by the time is the second resource space.

The control resource allocation information specifies the resource space in the downlink channel occupied when the control resource of the first service is transmitted. For example, the control resource allocation information specifies that the resource space in the downlink channel occupied when the control resource of the first service is transmitted is the first resource space. The preset resource space is a resource space used for sending control resources and signaling in the downlink channel, so the first resource space is a part of the preset resource space. Correspondingly, the second resource space is no longer within the resource space range defined by the preset resource space.

Generally, the preemption indication command is generated according to the format of common DCI signaling. In order to enable the terminal configured by the base station to monitor the preemption indication signaling to receive the preemption indication signaling, the preemption indication signaling is sent through the resource space specified in the preset resource space for sending common signaling.

The process of replacing the resource space where the local terminal monitors signaling with the monitoring resource space can be achieved by changing the information of the monitored resource space and refreshing it, or by changing the information of the monitored resource space and restarting the local terminal This is not specifically limited in this embodiment.

Generally speaking, the local terminal in this embodiment is used to process the second service, but after receiving the preemption indication signaling, the preemption indication signaling is processed according to the above steps 101 to 103 . For example, the first service is the URLLC service, and the second service is the eMBB service. After receiving the preemption indication signaling of the URLLC service sent by the base station, the terminal judges whether the local terminal meets the conditions for processing the preemption indication signaling according to the preemption indication signaling, and if not, judges whether the preemption indication signaling The processing of the eMBB service by the local terminal is affected. If there is no effect, the first resource space occupied by the control resources of the URLLC service is obtained according to the preemption instruction signaling, so that the signaling monitoring of the first resource space is not performed, but only the first resource space is obtained. Monitoring of signaling is performed on the monitoring resource space that is not occupied by the first resource space.

This embodiment provides a method for processing preemption indication signaling. In the method, a base station generates preemption indication signaling carrying control resource allocation information of a first service, and sends the preemption indication signaling to a device configured to receive the preemption Indicates the terminal for signaling. After the terminal receives the preemption indication signaling, if the preemption indication signaling does not affect the processing of the second service by the local terminal, the resource space in which the local terminal monitors the signaling is replaced by a preset resource space that is not used for the first service. The resource space occupied by the corresponding control resource. In this method, the base station introduces the control resource allocation information of the first service in the process of issuing the preemption instruction signaling, and reduces the resource space of the local terminal monitoring signaling to The monitoring resource space in the preset resource space that is not occupied by the control resource corresponding to the first service avoids the problem of excessive downlink channel monitoring burden caused by monitoring the entire preset resource space, thereby reducing power consumption.

Further, on the basis of the foregoing embodiment, determining whether the processing of the preset second service by the local terminal is affected according to the preemption instruction signaling includes:

obtaining, according to the service resource allocation information, a second resource space occupied by service resources corresponding to the first service, and obtaining a third resource space occupied by service resources corresponding to the second service received by the local terminal;

Determine whether the second resource space and the third resource space have overlapping overlapping resource spaces, and if so, determine that the processing of the second service by the local terminal is affected, and store the preemption indication signaling , otherwise, it is judged that the processing of the second service by the local terminal is not affected.

The third resource space may be obtained through the signaling about processing the second service sent by the base station and received by the local terminal. That is, the resource space occupied by the service resources of the second service is obtained through the service resource allocation information about processing the second service sent by the base station, that is, the third resource space. The overlapping of the second resource space and the third resource space means that if the second resource space and the third resource space have overlapping time domain spaces in the time domain, and there is also an overlapping time domain space in the time domain space The overlapping frequency domain space in the frequency domain, then the frequency domain space is the space where both the time domain and the frequency domain overlap, that is, the overlapping resource space.

For example, if the third resource space occupied by the service resources of the eMBB service received by the local terminal and the second resource space occupied by the service resources of the URLLC service have overlapping resource spaces, the processing of the eMBB service by the local terminal is affected, otherwise, judge The processing of the eMBB service by the local terminal is not affected.

This embodiment provides a method for processing preemption indication signaling. The method can realize the preemption of the service resource allocation information in the indication signaling and the third resource space occupied by the service resources corresponding to the second service received by the local terminal. Quick and accurate judgment of whether the second service processed by the local terminal is affected.

Further, on the basis of each of the above-mentioned embodiments, it also includes:

If the processing of the second service by the local terminal is affected, determine the overlapping resource space according to the preemption indication signaling and the third resource space, and obtain the first received in the overlapping resource space. 2. The business resources of the business, as the affected business resources, amend the affected business resources to obtain the corrected business resources;

In the service resources of the second service, the affected service resources are replaced with the revised service resources to obtain the revised service resources of the second service.

It should be noted that the method provided in this embodiment is used in the process of decoding the service resource corresponding to the second service. For example, the value corresponding to each bit of the affected service resource is replaced with a preset value (eg, 0 or 1), and the replaced service resource is the modified service resource. The affected service resource is deleted from the service resource of the second service, and the revised service resource is added to the position of the affected service resource, that is, the revised service resource of the second service is obtained.

This embodiment provides a method for processing preemption indication signaling, and the method provides a method for how to process the affected service resources of the second service received by the local terminal, through which the service resources of the second service can be processed in time. The affected part of the resource is identified and processed, so as to avoid the influence of the affected service resource on the processing of the second service.

Further, on the basis of the above-mentioned embodiments, determining whether the local terminal meets the conditions for processing the preemption instruction signaling according to the preemption instruction signaling includes:

According to the pre-received downlink service scheduling signaling, the resource space occupied by the service resources used by the local terminal to receive the service to be processed is obtained as the original resource space, and the service resource allocation information is obtained according to the service resource allocation information. the second resource space;

If the original resource space and the second resource space are the same, it is determined that the local terminal meets the conditions for processing the preemption indication signaling; otherwise, it is determined that the local terminal does not conform to the preemption indication signaling. conditions for processing.

It should be noted that the downlink service scheduling signaling is signaling about how the local terminal receives and processes the service to be processed, and the downlink service scheduling signaling includes the resource space occupied by the service resources of the service to be processed.

For example, the local terminal receives the downlink service scheduling signaling of the URLLC service, and the resource space occupied by the service resources for receiving the URLLC service specified in the downlink service scheduling signaling is the original resource space. If the second resource space occupied by the service resource corresponding to the first service specified in the service resource allocation information in the preemption indication signaling is the same as the original resource space, it is determined that the local terminal complies with the preemption indication signaling. The conditions for processing are determined, otherwise, it is determined that the local terminal does not meet the conditions for processing the preemption indication signaling.

This embodiment provides a method for processing preemption instruction signaling, which determines how to determine whether a local terminal complies with processing preemption instruction signaling, thereby realizing fast and accurate judgment on whether to process preemption instruction signaling.

FIG. 2 shows a structural block diagram of a terminal for processing preemption indication signaling provided in this embodiment. Referring to FIG. 2 , the terminal for processing preemption indication signaling includes a first judgment module 201 , a second judgment module 202 and a processing module 203, of which,

The first judgment module 201 is configured to, after receiving the preemption instruction signaling corresponding to the first service, determine whether the local terminal meets the conditions for processing the preemption instruction signaling according to the preemption instruction signaling;

The second judging module 202 is configured to, if it is judged that the local terminal does not meet the conditions for processing the preemption indication signaling, judge whether the local terminal has any effect on the preset second service according to the preemption indication signaling. whether processing is affected;

A processing module 203, configured to obtain, according to the control resource allocation information in the preemption instruction signaling, the occupied control resources corresponding to the first service if it is determined that the processing of the second service by the local terminal is not affected the first resource space in the preset resource space, and the resource space in the preset resource space that is not occupied by the first resource space is used as the monitoring resource space for the local terminal to monitor signaling;

Wherein, the preemption instruction signaling is signaling that carries the service resource allocation information of the first service and the control resource allocation information, and the preset resource space is the resource space corresponding to the downlink channel used for sending control resources and signaling resource space.

The terminal for processing preemption indication signaling provided in this embodiment is applicable to the processing method for preemption indication signaling provided in the foregoing embodiments, and details are not described herein again.

This embodiment provides a terminal for processing preemption indication signaling. After the terminal receives the preemption indication signaling, if the preemption indication signaling does not affect the processing of the second service by the local terminal, the local terminal processes the signaling. The monitored resource space is replaced with the resource space in the preset resource space that is not occupied by the control resource corresponding to the first service. In this method, the base station introduces the control resource allocation information of the first service in the process of issuing the preemption instruction signaling, and reduces the resource space of the local terminal monitoring signaling to The monitoring resource space in the preset resource space that is not occupied by the control resource corresponding to the first service avoids the problem of excessive downlink channel monitoring burden caused by monitoring the entire preset resource space, thereby reducing power consumption.

FIG. 3 is a schematic flowchart of a method for sending preemption indication signaling provided by this embodiment. Referring to FIG. 3 , the method includes:

301: Generate indication signaling carrying service resource allocation information and control resource allocation information corresponding to the first service, as preemption indication signaling;

302: Configure a terminal that monitors the preemption indication signaling, and send the preemption indication signaling to a terminal configured to monitor the preemption indication signaling through a preset resource space;

The preset resource space is a resource space used for sending control resources and signaling in the resource space corresponding to the downlink channel.

Further, the format of the preemption indication signaling is the same as that of the common signaling.

It should be noted that the method provided in this embodiment is executed by the base station. Usually, this method is applicable to the case where two services are shared and transmitted, for example, the eMBB service and the URLLC service are shared and transmitted, the first service is the URLLC service, and the second service is the eMBB service. The base station needs to configure a terminal that accepts the signaling before sending the signaling, and only the terminal configured by the base station to receive the signaling can receive the signaling sent by the base station. For example, before the base station sends the preemption indication signaling, a terminal (usually a group of terminals) to receive the preemption indication signaling needs to be configured, and all terminals configured to receive the preemption indication signaling can receive the preemption indication signaling. In the case where the eMBB service and the URLLC service are shared and transmitted, in order to ensure the low latency requirement of the URLLC service, the base station will configure all or some terminals in the cell corresponding to the base station before sending the preemption instruction signaling of the URLLC service as The terminal that receives the preemption instruction signaling, and the terminal that receives the preemption instruction signaling, executes steps 101 to 103 provided in this embodiment to process the preemption instruction signaling, process the affected second service, and process the affected second service. The updating of the resource space of the self-monitoring signaling is the processing of the monitoring resource space.

In the preemption indication signaling, the control resource allocation information of URLLC is appended to the service resource allocation information, and the control resource allocation information includes the aggregation level and the start of CCE (Control Channel Element, control channel element, PDCCH is transmitted on one or more CCEs) The location and the number of repetitions are carried together in the preemption indication signaling and delivered to the terminal at the same time.

For example, in the application scenario shared by URLLC and eMBB, the frequency band is 3.5GHz, the bandwidth part (Bandwidth Parts) shared by URLLC and eMBB is 20MHz, the carrier interval is 15KHz, the total number of physical resource blocks (PRBs) is 100, and the time The granularity adopts a finer granularity. In the 14-symbol TTI (transmission time interval, transmission time interval) of the eMBB service, the URLLC service uses a 2-symbol Mini-Slot, and can use 3 bits to represent the time domain resource location. The frequency granularity may adopt a coarser granularity. The 5G NR (Radio Access Technology) system still uses the type 0 resource allocation method of LTE. The length P of the resource group RBG (Resource Block Group, which is a set of continuous PRBs) is defined as 12, and a total of 3 bits are required to represent the frequency domain resources. Location. The downlink control resource set (CORSET) carried on this shared bandwidth segment maintains a capacity similar to that of LTE, occupies 3 symbols in the time domain, and the total CCE capacity is 80. The value of the aggregation level of the URLLC downlink scheduling command can only be Selected from the set {4, 8, 16, 32}, only 2 bits are needed to represent; for aggregation level 4, the CCE of the URLLC downlink scheduling command may have the most starting positions, which are more than 20 starting positions. 5-bit representation, however, other aggregation levels need to indicate relatively few positions. If joint coding is used for the aggregation level of URLLC and other CCE starting positions, a total of 6-bit positions is enough. In this way, the signaling format of the preemption instruction command is as follows shown in Figure 4. Referring to Fig. 4, URLLC service resource time domain indication and URLLC service resource frequency domain indication are the service resource allocation information of URLLC service, and the CCE starting position of the aggregation level of URLLC scheduling command and URLLC scheduling command is the control resource allocation information of URLLC service, The service resource allocation information and the control resource allocation information are located after the information field, and the control resource allocation information is located after the service resource allocation information. Table 1 shows the bit length occupied by each part in the preemption instruction command, and Table 2 shows the form of the codebook jointly coded by the aggregation level of the URLLC scheduling command and the starting position of the CCE. It should be noted that the codebook shown in Table 2 is used in this example, which is a codebook designed by using a simpler design method, which can support the capacity of control resources up to 128CCE, and has a certain ability to support system upgrades.

Table I

Table II

An embodiment of the present invention provides a method for sending preemption indication signaling. In the method, a base station generates preemption indication signaling that carries control resource allocation information of a first service, and sends the preemption indication signaling to a receiver configured to receive The preemption indicates the signaling terminal. After the terminal receives the preemption indication signaling, if the preemption indication signaling does not affect the processing of the second service by the local terminal, the resource space in which the local terminal monitors the signaling is replaced by a preset resource space that is not used for the first service. The resource space occupied by the corresponding control resource. In this method, the base station introduces the control resource allocation information of the first service in the process of issuing the preemption instruction signaling, and reduces the resource space of the local terminal monitoring signaling to The monitoring resource space in the preset resource space that is not occupied by the control resource corresponding to the first service avoids the problem of excessive downlink channel monitoring burden caused by monitoring the entire preset resource space, thereby reducing power consumption.

Fig. 5 shows a structural block diagram of a base station for sending preemption indication signaling provided in this embodiment. Referring to Fig. 5 , the base station for sending preemption indication signaling includes a generating module 501 and a sending module 502, wherein,

A generating module 501, configured to generate instruction signaling carrying service resource allocation information and control resource allocation information corresponding to the first service, as preemption instruction signaling;

A sending module 502, configured to configure a terminal that monitors the preemption indication signaling, and sends the preemption indication signaling to a terminal configured to monitor the preemption indication signaling through a preset resource space;

The preset resource space is a resource space used for sending control resources and signaling in the resource space corresponding to the downlink channel.

The base station for sending the preemption indication signaling provided in this embodiment is applicable to the method for sending the preemption indication signaling provided in the foregoing embodiments, and details are not described herein again.

This embodiment provides a base station that sends preemption indication signaling, the base station generates preemption indication signaling that carries control resource allocation information of a first service, and sends the preemption indication signaling to a device configured to receive the preemption indication signaling command terminal. After the terminal receives the preemption indication signaling, if the preemption indication signaling does not affect the processing of the second service by the local terminal, the resource space in which the local terminal monitors the signaling is replaced by a preset resource space that is not used for the first service. The resource space occupied by the corresponding control resource. In this method, the base station introduces the control resource allocation information of the first service in the process of issuing the preemption instruction signaling, and reduces the resource space of the local terminal monitoring signaling to The monitoring resource space in the preset resource space that is not occupied by the control resource corresponding to the first service avoids the problem of excessive downlink channel monitoring burden caused by monitoring the entire preset resource space, thereby reducing power consumption.

As a specific embodiment, FIG. 6 shows a schematic flowchart of the process of sending and using preemption indication signaling. As shown in FIG. 6 , the process includes:

601: A cell is established, and an eMBB UE is accessed for service transmission; that is, a terminal corresponding to the eMBB service is accessed.

602 : UE access of the URLLC service; that is, the terminal access corresponding to the URLLC service.

603: The network configures all UEs to monitor the scheduling indication signaling; that is, to monitor the downlink service scheduling signaling and preemption indication signaling delivered by the base station.

604: URLLC downlink service data arrives; that is, URLLC downlink service scheduling signaling arrives.

605: The network simultaneously delivers the URLLC resource scheduling command (downlink service scheduling signaling) and preemption instruction signaling.

606: All UEs receive the preemption indication signaling first.

607: Judging whether it is a URLLC UE (judging whether the local terminal meets the conditions for processing the preemption instruction signaling), if so, execute 608, otherwise, execute 609, 608: continue to monitor and process the URLLC scheduling signaling;

609: Determine whether the eMBB UE is affected (determine whether the processing of the preset second service by the local terminal is affected), if yes, execute 610, otherwise, execute step 611.

610: Store preemption indication information for subsequent transmission block reception and processing (store the preemption indication signaling);

611: Update its own search space (resource space for monitoring signaling) according to the URLLC scheduling control resource, and continue to monitor other signaling (update the search space regardless of whether the resources of the eMBB service currently processed by the UE are scheduled).

The preemption indication signaling provided in this embodiment will be independently issued in a group common DCI signaling format, rather than being included in the downlink dedicated resource scheduling signaling. Once configured by the upper layer, the preemption indication signaling will be sent to inform the relevant UEs which resources are preempted. However, the trigger time of the URLLC service is completely random, and the use of preemption indication signaling cannot be fully notified by the upper layer to some specific UEs for monitoring. In actual operation, most terminals in the cell need to monitor the signaling of the preemption indication principle. The result of this is that when the URLLC service and the eMBB service are concurrent, the terminal will have a large instantaneous increase in the monitoring burden of the PDCCH channel, and unnecessary power consumption will increase. Therefore, the application of the preemption indication signaling technology should consider how to reduce the negative impact of URLLC downlink scheduling on downlink control channel resources and control channel monitoring by end users.

In this embodiment, considering that the preemption indication signaling will be issued in an independent group common downlink signaling mode, in principle, this signaling can be monitored and received by any user in the cell. In addition, considering that the URLLC downlink resource scheduling will try to use a smaller signaling length format for delivery to increase the reliability of its PDCCH channel, the resource scheduling information indicated by the preemption indication signaling to the affected UE is only the URLLC downlink resource scheduling information. The part of the order shows that the indication information load of the preemption indication signaling is relatively light, and more useful information can be transmitted to the users in the cell. Therefore, the present invention will consider appending the URLLC downlink scheduling control resource allocation information (including the aggregation level, CCE start position and repetition times) to the back of the URLLC downlink service resource indication information, and carry them together in the preemption instruction signaling and deliver at the same time. to users in the cell.

When the URLLC downlink service is triggered, the network can enable the configuration of monitoring the preemption indication information for all users. When the network delivers the URLLC scheduling information, it simultaneously delivers the preemption indication signaling. Users affected by URLLC can confirm that their transmission is affected according to the preemption indication information, and can only store the indication information for subsequent transmission and retransmission processing of transmission blocks. Other active users can receive preemption indication information and URLLC service UE downlink scheduling control resource information at the same time, and confirm that no currently allocated resources are preempted according to the preemption indication information, or, there are currently no preallocated resources and do not need to monitor preemption indication information. Continue to process the downlink scheduling control resource information of the URLLC service UE. If the downlink scheduling control resource of the URLLC service UE blocks or partially blocks the search space of the UE, the UE can end the processing of the downlink PDCCH monitoring in advance or update its own search space, so that The workload of unnecessary PDCCH monitoring can be saved.

In this embodiment, the preemption indication signaling is extended. On the basis of the existing indication information used to indicate the UE's subsequent transmission block reception processing function affected by the URLLC service, the indication information of the URLLC downlink control resource allocation is added, which can be used to guide Other UEs in the cell monitor the PDCCH to save or reduce the workload of PDCCH monitoring.

FIG. 7 is a structural block diagram showing a terminal provided by this embodiment.

7 , the terminal includes: a processor (processor) 701, a memory (memory) 702, a communications interface (Communications Interface) 703 and a bus 704;

in,

The processor 701, the memory 702, and the communication interface 703 communicate with each other through the bus 704;

The communication interface 703 is used for information transmission between the terminal and the communication equipment of the base station;

The processor 701 is configured to invoke the program instructions in the memory 702 to execute the methods provided by the above method embodiments, for example, including: after receiving the preemption instruction signaling corresponding to the first service, according to the preemption Indication signaling, to determine whether the local terminal meets the conditions for processing the preemption instruction signaling; if it is determined that the local terminal does not meet the conditions for processing the preemption instruction signaling, then according to the preemption instruction signaling, Determine whether the processing of the preset second service by the local terminal is affected, and if so, store the preemption indication signaling; if it is determined that the processing of the second service by the local terminal is not affected, according to the Obtain the first resource space occupied by the control resource corresponding to the first service from the control resource allocation information in the preemption instruction signaling, and use the resource space in the preset resource space that is not occupied by the first resource space as the The monitoring resource space where the local terminal monitors signaling; wherein, the preemption indication signaling is signaling that carries the service resource allocation information of the first service and the control resource allocation information, and the preset resource space is Resource space used for sending control resources and signaling in the resource space corresponding to the downlink channel.

This embodiment provides a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the methods provided by the foregoing method embodiments, for example, including : After receiving the preemption instruction signaling corresponding to the first service, according to the preemption instruction signaling, determine whether the local terminal meets the conditions for processing the preemption instruction signaling; If the condition for processing the preemption instruction signaling, then according to the preemption instruction signaling, determine whether the processing of the preset second service by the local terminal is affected, and if so, store the preemption instruction signaling; The processing of the second service by the local terminal is not affected, the first resource space occupied by the control resources corresponding to the first service is obtained according to the control resource allocation information in the preemption instruction signaling, and the Suppose the resource space in the resource space that is not occupied by the first resource space is used as the monitoring resource space for the local terminal to monitor signaling; wherein, the preemption indication signaling is the service resource allocation that carries the first service information and the signaling of the control resource allocation information, and the preset resource space is the resource space used for sending control resources and signaling in the resource space corresponding to the downlink channel.

In a fifth aspect, this embodiment discloses a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer During execution, the computer can execute the methods provided by the above method embodiments, for example, including: after receiving the preemption instruction signaling corresponding to the first service, according to the preemption instruction signaling, judging whether the local terminal complies with the preemption instruction signaling. The condition for processing the preemption instruction signaling; if it is determined that the local terminal does not meet the conditions for processing the preemption instruction signaling, then according to the preemption instruction signaling, it is determined that the local terminal is not satisfied with the preset second service Whether the processing of the second service is affected, if so, store the preemption indication signaling; if it is judged that the processing of the second service by the local terminal is not affected, obtain the control resource allocation information according to the preemption indication signaling For the first resource space occupied by the control resource corresponding to the first service, the resource space in the preset resource space that is not occupied by the first resource space is used as the monitoring resource space for the local terminal to monitor signaling; Wherein, the preemption instruction signaling is signaling that carries the service resource allocation information of the first service and the control resource allocation information, and the preset resource space is the resource space corresponding to the downlink channel used for sending control resources and signaling resource space.

FIG. 8 is a structural block diagram showing a base station provided in this embodiment.

8, the base station includes: a processor (processor) 801, a memory (memory) 802, a communications interface (Communications Interface) 803 and a bus 804;

The processor 801, the memory 802, and the communication interface 803 communicate with each other through the bus 804;

The communication interface 803 is used for information transmission between the base station and the communication equipment of the terminal;

The processor 801 is configured to invoke the program instructions in the memory 802 to execute the methods provided by the above method embodiments, for example, including: generating an instruction that carries the service resource allocation information and control resource allocation information corresponding to the first service signaling, as preemption instruction signaling; the terminal configured to monitor the preemption instruction signaling sends the preemption instruction signaling to the terminal configured to monitor the preemption instruction signaling through a preset resource space; wherein the preemption instruction signaling Let the resource space be the resource space used for sending control resources and signaling in the resource space corresponding to the downlink channel.

This embodiment provides a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the methods provided by the foregoing method embodiments, for example, including : generate an indication signaling carrying the service resource allocation information and control resource allocation information corresponding to the first service as a preemption indication signaling; configure a terminal that monitors the preemption indication signaling to use a preset resource space to configure the terminal to monitor the preemption indication signaling The terminal that preempts the indication signaling sends the preemption indication signaling; wherein, the preset resource space is the resource space used for sending control resources and signaling in the resource space corresponding to the downlink channel.

In a fifth aspect, this embodiment discloses a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer During execution, the computer can execute the methods provided by the above method embodiments, for example, including: generating instruction signaling carrying service resource allocation information and control resource allocation information corresponding to the first service, as preemption instruction signaling; The terminal that uses the preemption indication signaling sends the preemption indication signaling to the terminal configured to monitor the preemption indication signaling through a preset resource space; wherein the preset resource space is the resource space corresponding to the downlink channel. Resource space for sending control resources and signaling.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by program instructions related to hardware, the aforementioned program can be stored in a computer-readable storage medium, and when the program is executed, execute It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

The above-described electronic equipment and other embodiments are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, It can be located in one place, or it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

From the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on this understanding, the above-mentioned technical solutions can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic A disc, an optical disc, etc., includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, but not to limit them; although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, ordinary The skilled person should understand that it is still possible to modify the technical solutions described in the foregoing embodiments, or to perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the present invention. The scope of the technical solutions of the embodiments of each embodiment.

Claims (10)

1. A method for processing preemption indication signaling, comprising: After receiving the preemption instruction signaling corresponding to the first service, according to the preemption instruction signaling, determine whether the local terminal meets the conditions for processing the preemption instruction signaling; If it is determined that the local terminal does not meet the conditions for processing the preemption instruction signaling, then according to the preemption instruction signaling, determine whether the processing of the preset second service by the local terminal is affected; If it is determined that the processing of the second service by the local terminal is not affected, the first resource space occupied by the control resources corresponding to the first service is obtained according to the control resource allocation information in the preemption instruction signaling, Using the resource space that is not occupied by the first resource space in the preset resource space as the monitoring resource space for the local terminal to monitor signaling; Wherein, the preemption instruction signaling is signaling that carries the service resource allocation information of the first service and the control resource allocation information, and the preset resource space is the resource space corresponding to the downlink channel used for sending control resources and signaling resource space. 2 . The method according to claim 1 , wherein, according to the preemption instruction signaling, judging whether the processing of the preset second service by the local terminal is affected, comprising: 3 . obtaining, according to the service resource allocation information, a second resource space occupied by service resources corresponding to the first service, and obtaining a third resource space occupied by service resources corresponding to the second service received by the local terminal; Determine whether the second resource space and the third resource space have overlapping overlapping resource spaces, and if so, determine that the processing of the second service by the local terminal is affected, and store the preemption indication signaling , otherwise, it is judged that the processing of the second service by the local terminal is not affected. 3. The method of claim 2, further comprising: If the processing of the second service by the local terminal is affected, determine the overlapping resource space according to the preemption indication signaling and the third resource space, and obtain the first received in the overlapping resource space. 2. The business resources of the business, as the affected business resources, amend the affected business resources to obtain the corrected business resources; In the service resources of the second service, the affected service resources are replaced with the revised service resources to obtain the revised service resources of the second service. 4 . The method according to claim 2 , wherein, according to the preemption instruction signaling, determining whether the local terminal meets the conditions for processing the preemption instruction signaling, comprising: 5 . According to the pre-received downlink service scheduling signaling, the resource space occupied by the service resources used by the local terminal to receive the service to be processed is obtained as the original resource space, and the service resource allocation information is obtained according to the service resource allocation information. the second resource space; If the original resource space and the second resource space are the same, it is determined that the local terminal meets the conditions for processing the preemption indication signaling; otherwise, it is determined that the local terminal does not conform to the preemption indication signaling. conditions for processing. 5. A method for sending preemption indication signaling, comprising: generating instruction signaling carrying service resource allocation information and control resource allocation information corresponding to the first service, as preemption instruction signaling; The terminal configured to monitor the preemption indication signaling sends the preemption indication signaling to the terminal configured to monitor the preemption indication signaling through a preset resource space; so that the terminal receives the preemption corresponding to the first service After indicating the signaling, according to the preemption instruction signaling, determine whether the local terminal meets the conditions for processing the preemption instruction signaling; if it is determined that the local terminal does not meet the conditions for processing the preemption instruction signaling, Then, according to the preemption instruction signaling, it is judged whether the processing of the preset second service by the local terminal is affected; if it is judged that the processing of the second service by the local terminal is not affected, then according to the preemption Obtain the first resource space occupied by the control resource corresponding to the first service from the control resource allocation information in the instruction signaling, and use the resource space in the preset resource space that is not occupied by the first resource space as the local terminal Monitoring resource space for monitoring signaling; The preset resource space is a resource space used for sending control resources and signaling in the resource space corresponding to the downlink channel. 6. The method according to claim 5, wherein the format of the preemption indication signaling is the same as that of the common signaling. 7. A terminal for processing preemption indication signaling, comprising: a first judging module, configured to, after receiving the preemption indication signaling corresponding to the first service, judge whether the local terminal meets the conditions for processing the preemption indication signaling according to the preemption indication signaling; A second judging module, configured to judge, according to the preemption indication signaling, whether the local terminal has processed the preset second service if it is judged that the local terminal does not meet the conditions for processing the preemption indication signaling is affected; The processing module is configured to obtain, according to the control resource allocation information in the preemption instruction signaling, the control resource occupied by the control resource corresponding to the first service if it is determined that the processing of the second service by the local terminal is not affected. a first resource space, using a resource space in the preset resource space that is not occupied by the first resource space as a monitoring resource space for the local terminal to monitor signaling; Wherein, the preemption instruction signaling is signaling that carries the service resource allocation information of the first service and the control resource allocation information, and the preset resource space is the resource space corresponding to the downlink channel used for sending control resources and signaling resource space. 8. A base station for sending preemption indication signaling, comprising: a generating module, configured to generate instruction signaling carrying service resource allocation information and control resource allocation information corresponding to the first service, as preemption instruction signaling; A sending module, configured to configure a terminal that monitors the preemption indication signaling, and sends the preemption indication signaling to a terminal configured to monitor the preemption indication signaling through a preset resource space; After the preemption instruction signaling of the first service, according to the preemption instruction signaling, determine whether the local terminal meets the conditions for processing the preemption instruction signaling; if it is determined that the local terminal does not meet the preemption instruction signaling condition for processing, then according to the preemption instruction signaling, it is judged whether the processing of the preset second service by the local terminal is affected; if it is judged that the processing of the second service by the local terminal is not affected, Then, the first resource space occupied by the control resource corresponding to the first service is obtained according to the control resource allocation information in the preemption instruction signaling, and the resource space not occupied by the first resource space in the preset resource space is as a monitoring resource space where the local terminal monitors signaling; The preset resource space is a resource space used for sending control resources and signaling in the resource space corresponding to the downlink channel. 9. A terminal, characterized in that, comprising: at least one processor, at least one memory, a communication interface, and a bus; wherein, The processor, the memory, and the communication interface communicate with each other through the bus; The communication interface is used for information transmission between the terminal and the communication equipment of the base station; The memory stores program instructions executable by the processor, the processor invoking the program instructions capable of performing the method as claimed in any one of claims 1 to 4. 10. A non-transitory computer-readable storage medium, characterized in that the non-transitory computer-readable storage medium stores computer instructions, the computer instructions cause the computer to execute any one of claims 1 to 4. method described.

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