CN102781111A - Determination method, device and system for activating uplink semi-persistent scheduling (SPS) - Google Patents

Abstract

The invention discloses a determination method, a device and a system for activating uplink semi-persistent scheduling (SPS). The method comprises that e-utran node B (eNB) sends downlink control information (DCI) 0 which activates the uplink SPS, and hybrid automatic repeat request (HARQ) information which is fed back by user equipment (UE) is detected on an uplink time-frequency resource indicated by the DCI0; if the eNB fails to detect the HARQ information, the DCI0 is resent and the uplink SPS is activated; and if the time of the sent DCI0 is less than a preset time when the eNB detects the HARQ information, the eNB determines that the SPS is activated. By the aid of the method, the device and the system, the problems that the uplink time-frequency resource is wasted, the scheduling quality of uplink businesses cannot be guaranteed and the transmission of uplink businesses is uncertain are solved.

Description

Method, device and system for determining uplink SPS activation

technical field

The present invention relates to the communication field, in particular, to a method, device and system for determining activation of uplink Semi-Persistent Scheduling (SPS, Semi-Persistent Scheduling).

Background technique

At present, mobile communication systems generally adopt a shared resource allocation and scheduling method, which has the advantage of greatly improving the utilization rate of wireless communication resources. For this dispatching method, the voice service of the original circuit domain has been canceled and replaced by the voice service (VoIP, Voice Over Internet Protocol) and data service of the IP network. Since the number of users accessing a cell at the same time is relatively large, and the resource allocation method of shared scheduling needs to send control information for each service transmission, resulting in excessive control information overhead. For VoIP or data services whose data packet size is relatively fixed and the arrival time interval meets certain rules, the uplink SPS technology can effectively reduce the control information overhead and improve the wireless network air interface communication performance.

SPS means that the base station sends the scheduling related configuration to the user equipment (UE, User Equipment) in advance. When the SPS service needs to be used, the evolved base station (eNB, E-UTRAN NodeB) activates the SPS service by sending downlink control information (DCI, Downlink Control Information) containing specific information to the UE. When the UE recognizes the DCI for activating the SPS service, the UE saves the time-frequency resource information in the DCI, and uses the saved time-frequency resource to send or receive service data in a fixed period according to the SPS configuration received in advance. When the SPS is used up, the base station may use a method similar to activating the SPS to deactivate the SPS. As shown in Figure 1, the arrival period of VoIP data packets is 20 ms. As long as the base station gives the semi-persistent scheduling instruction to the UE through DCI, the UE will send or receive the scheduled data according to the instructions of DCI and SPS configuration information, and at every After 20 ms, a new VoIP data packet is transmitted or received at the same time-frequency resource position. The data packet corresponding to the retransmission of SPS (for example, Hybrid Automatic Repeat Request (HARQ, Hybrid Automatic Repeat Request) retransmission packet) is processed according to the retransmission of the ordinary scheduling service packet, that is, the base station replies to the NACK information and then transmits the HARQ retransmission Bag.

SPS, which uses pre-allocated resources at fixed times and uses dynamic scheduling resources at other times, is vividly called semi-static scheduling. After the SPS is started, the specified time-frequency resource blocks will be periodically allocated to the specified UE for periodic services with fixed payload sizes, so as to reduce the system burden caused by processing such as control, service resource allocation, and resource indication. overhead. SPS is divided into downlink SPS and uplink SPS. This example mainly involves uplink SPS. Please refer to Figure 2 for a schematic diagram of the activation and release of the existing uplink SPS, including:

Step S202, the UE needs to send services that meet the uplink SPS characteristics, triggering the UE to send an uplink buffer status report (BSR, Buffer Status Report) to the eNB;

Step S204, the UE uses the physical uplink shared channel (PUSCH, Physical uplink shared channel) to carry the uplink BSR to the base station;

Step S206, the base station judges that the SPS can be activated for the current UE;

Step S208, the base station uses the PDCCH to carry the DCI0 for activating the uplink SPS to the UE;

Step S210, the base station activates the uplink SPS of the current UE;

Step S212, the UE activates the uplink SPS;

Step S214-step S216, the UE periodically sends the uplink SPS service to the base station;

Step S218, the base station uses a physical layer downlink control channel (PDCCH, Physical downlink control channel) to carry the DCI0 for releasing the uplink SPS to the UE;

Step S220, the base station releases the uplink SPS;

Step S222, the UE releases the uplink SPS.

Due to the randomness of wireless channel transmission, the DCI0 for activating the uplink SPS sent by the eNB may be lost due to channel interference and other reasons during transmission, causing the UE to fail to receive the DCI successfully. Therefore, there is an objective problem of unreliability in the activation of the upstream SPS. If the UE fails to receive the DCI0 for activating the uplink SPS, the uplink SPS service states maintained by the eNB and the UE are inconsistent. That is, the uplink SPS state of the base station is in an activated state, while the uplink SPS state of the UE is still in a deactivated state. The inconsistency of uplink SPS status between eNB and UE will lead to the following three problems:

(1) Waste of uplink time-frequency resources: The eNB sends DCI0 to activate the uplink SPS to the UE. Due to the uncertainty of the wireless channel or some other reason, the UE fails to receive this DCI0, so the uplink SPS status maintained by the eNB and the UE respectively Inconsistency occurs, which further leads to that the UE will not use the uplink SPS time-frequency resource allocated to it by the base station in the uplink SPS periodic time slot. However, the eNB cannot also allocate these time-frequency resources to other UEs, resulting in waste of uplink time-frequency resources, as shown in FIG. 3 .

(2) The scheduling quality of the uplink service cannot be guaranteed: when there is service data that meets the characteristics of the uplink SPS to be sent, the UE will notify the eNB by sending an uplink BSR to the eNB, and when the eNB judges that the uplink SPS can be used for the UE, the eNB will notify the UE Send DCI0 to activate uplink SPS. Due to the uncertainty of the wireless channel or some other reason, the UE does not receive the DCI0, resulting in that the uplink SPS cannot be activated in time, and the UE can only obtain resources through dynamic scheduling. Compared with the SPS method, the dynamic scheduling method cannot well guarantee the scheduling quality of uplink services.

(3) The uncertainty of uplink service transmission is increased: if the UE uplink SPS is not activated and does not send data services in the uplink SPS periodic time slot, the eNB will specify in the time slot because the current UE's uplink SPS state has been activated. If data is detected on the time-frequency resource, the eNB will not detect any valid data. According to the processing of the protocol, the eNB will initiate the retransmission process of the uplink service. Because the UE does not send any data in the uplink semi-persistent scheduling period, the UE has no corresponding uplink data to retransmit, so the base station cannot detect any effective uplink service in the time slot for retransmission. The eNB may not only need to allocate control channel resources for reactivating the uplink SPS, but also prolongs the time for the successful activation of the uplink SPS because the eNB cannot know in time that the UE's uplink SPS activation fails, increasing the uncertainty of the UE's uplink service transmission.

The three problems mentioned above all stem from the fact that the eNB cannot obtain the reception status of the DCI0 for activating the uplink SPS by the UE in time when the uplink SPS is activated.

In the existing network deployment, uplink time-frequency resources may be wasted, uplink service scheduling quality cannot be guaranteed, and uplink service transmission is uncertain. No effective solution has been proposed yet.

Contents of the invention

The main purpose of the present invention is to provide a method, device and system for determining the activation of uplink SPS, so as to solve the possible problems of waste of uplink time-frequency resources, unguaranteed scheduling quality of uplink services, and uncertainty of uplink service transmission in related technologies .

According to one aspect of the present invention, a method for determining the activation of uplink SPS is provided, including: the base station eNB sends downlink control information DCI0 for activating uplink SPS, and detects the mix of user equipment UE feedback on the uplink time-frequency resources indicated by the DCI0 Automatic retransmission request HARQ information; if the eNB does not detect the HARQ information, resend the DCI0 to activate the uplink SPS; if the eNB detects the HARQ information, and the eNB sends the DCI0 If the number of times is less than the preset number of times, the eNB determines that the uplink SPS is activated.

Preferably, before the eNB sends the downlink control information DCI0 for activating the uplink SPS, it includes: when the UE needs to send uplink services that meet the SPS service characteristics, the eNB receives the uplink buffer status report BSR sent by the UE ; The eNB determines to allocate uplink SPS resources to the UE, and the eNB keeps the UE uplink SPS state as a deactivated state.

Preferably, the eNB detects the HARQ information fed back by the UE on the uplink time-frequency resource indicated by the DCI0, including one of the following: the eNB does not detect the HARQ information on the uplink time-frequency resource indicated by the DCI0, The uplink SPS cannot be activated, and it is determined whether to continue to activate the uplink SPS; when the DCI0 and downlink shared channel data are sent in the same downlink subframe, the eNB receives on the uplink time-frequency resource indicated by the DCI0 Non-deterministic NACK information, determine that the downlink shared channel data has not been successfully received by the UE, and the DCI0 has been successfully received by the UE, set the uplink SPS state of the UE to active state, and perform downlink according to the received NACK information Retransmission of shared channel data; when the DCI0 and downlink shared channel data are not sent in the same downlink subframe, the eNB receives confirmation ACK information on the uplink time-frequency resource indicated by the DCI0, and determines that the DCI0 is The UE successfully receives, and sets the uplink SPS state of the UE to the active state; when the DCI0 and downlink shared channel data are sent in the same downlink subframe, the eNB is on the uplink time-frequency resource indicated by the DCI0 After receiving the ACK information, it is determined that the downlink shared channel data is successfully received by the UE, and the DCI0 is successfully received by the UE, and the uplink SPS state of the UE is set as an active state.

Preferably, if the eNB determines that the uplink SPS is not activated, the eNB detects the HARQ information fed back by the UE on the physical layer uplink control channel PUCCH resource, and determines whether to continue to activate the uplink SPS.

Preferably, the eNB detects the HARQ information fed back by the UE on the physical layer uplink control channel PUCCH resource, including:

When the DCI0 and the downlink shared channel data are sent in the same downlink subframe, the eNB detects the ACK information fed back by the UE on the physical layer uplink control channel PUCCH resource, and determines that the downlink shared channel data is successfully received by the UE;

When the DCI0 and downlink shared channel data are sent in the same downlink subframe, the eNB detects NACK information fed back by the UE on the PUCCH resource, and determines that the downlink shared channel data is not successfully received by the UE.

Preferably, when the number of times the eNB sends the DCI0 is not less than a preset number of times, the eNB determines to abandon the activation of the uplink SPS.

Preferably, the preset times are determined as follows: the eNB assigns weights to the downlink physical channel parameters reported by the UE to the eNB and the downlink physical channel parameters detected by the eNB; the eNB obtains the For the parameter value of each downlink physical channel parameter, calculate the sum of the product of the parameter value and its corresponding weight, and set it as N.

Preferably, the downlink physical channel parameters include: channel quality indicator CQI and downlink block error rate BLER.

According to another aspect of the present invention, another method for determining the activation of the uplink semi-persistent scheduling SPS is provided, including: the user equipment UE detects whether the downlink control information DCI0 for activating the uplink SPS sent by the base station eNB is received; when the detection result is yes , the UE determines that the uplink SPS is activated; when the detection result is no, the UE determines that the uplink SPS is not activated.

Preferably, when the detection result is yes, the UE determines that the uplink SPS is activated, including one of the following: when the DCI0 and downlink shared channel data are not sent in the same downlink subframe, the UE uses the The uplink time-frequency resource indicated by DCI0 responds to the eNB to confirm ACK information, and sets its own uplink SPS state to active state; when the DCI0 and downlink shared channel data are sent in the same downlink subframe and the downlink shared channel data When it is successfully resolved, the UE responds to the eNB with ACK information using the uplink time-frequency resources indicated by the DCI0, and sets its own uplink SPS status to the active state; when the DCI0 and downlink shared channel data are in the same downlink When the subframe is sent and the downlink shared channel data is not successfully parsed, the UE responds to the eNB with non-deterministic NACK information using the uplink time-frequency resource indicated by the DCI0, and sets its own uplink SPS status to active.

Preferably, when the detection result is no, the UE determines that the uplink SPS is not activated, including one of the following: when the DCI0 and downlink shared channel data are not sent in the same downlink subframe, the UE If the DCI0 is not received, the UE does not perform any operation; when the DCI0 and the downlink shared channel data are sent in the same downlink subframe and the downlink shared channel data is successfully parsed, the UE uses the physical layer uplink control The channel PUCCH resource responds to the eNB with ACK information, and keeps its own uplink SPS status as deactivated; when the DCI0 and downlink shared channel data are sent in the same downlink subframe and the downlink shared channel data is not successfully parsed , the UE responds with NACK information to the eNB by using the PUCCH resource, and keeps its own uplink SPS state as a deactivated state.

According to another aspect of the present invention, a base station eNB is provided, including: a first detection module, configured to send downlink control information DCI0 for activating uplink SPS, and detect user equipment UE feedback on the uplink time-frequency resource indicated by DCI0 The HARQ information of the hybrid automatic repeat request; the retransmission module is used to resend the DCI0 if the HARQ information is not detected by the detection module; the first determination module is used to activate the uplink SPS if the detection module When the module detects the HARQ information, and the number of times the DCI0 has been sent is less than a preset number of times, it determines that the uplink SPS is activated.

According to another aspect of the present invention, a user equipment UE is provided, including: a second detection module, configured to detect whether the downlink control information DCI0 for activating the uplink SPS sent by the base station eNB is received; a second determination module, configured to When the detection result is yes, it is determined that the uplink SPS is activated; a third determining module is configured to determine that the uplink SPS is not activated when the detection result is no.

According to another aspect of the present invention, a system for determining activation of uplink semi-persistent scheduling SPS is provided, including a base station eNB and a user equipment UE: the eNB is used to send downlink control information DCI0 for activating uplink SPS, and the DCI0 Detect hybrid automatic repeat request HARQ information fed back by the UE on the indicated uplink time-frequency resource; if the HARQ information is not detected, resend the DCI0 to activate the uplink SPS; if the HARQ information is detected, and The number of times the DCI0 is sent is less than the preset number of times, then it is determined that the uplink SPS is activated; the UE is used to detect whether the downlink control information DCI0 for activating the uplink SPS sent by the eNB is received; when the detection result is Yes , determine that the uplink SPS is activated; when the detection result is no, determine that the uplink SPS is not activated.

In the embodiment of the present invention, the eNB sends DCI0 to activate the uplink SPS, and detects the HARQ information fed back by the UE on the uplink time-frequency resources indicated by the DCI0; if the eNB does not detect the HARQ information, resends the DCI0 to activate the uplink SPS; if the eNB detects If the number of DCI0 sent during HARQ information is less than the preset number, the eNB determines that the uplink SPS is activated. That is, in the embodiment of the present invention, the eNB can determine whether the uplink SPS is activated within a limited time (determining the preset number of times to send DCI0), which enhances the reliability and timeliness of uplink SPS activation and avoids The mentioned problems of uplink time-frequency resource waste caused by the uplink SPS activation process, the scheduling quality of uplink services cannot be guaranteed, and the uncertainty of uplink service transmission shorten the time for UE and eNB to reactivate when uplink SPS activation fails. Or judge and determine the processing time for abandoning the uplink SPS.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is the SPS schematic diagram according to related art;

FIG. 2 is a flow chart of activation and release of an uplink SPS according to related technologies;

FIG. 3 is a schematic diagram of waste of uplink resources caused by inconsistent uplink SPS states of both the eNB and the UE according to the related art;

Fig. 4 is the first processing flowchart of the method for determining SPS activation according to an embodiment of the present invention;

FIG. 5 is a second processing flowchart of a method for determining SPS activation according to an embodiment of the present invention;

FIG. 6 is a flowchart of Embodiment 1 according to an embodiment of the present invention;

FIG. 7 is a flowchart of Embodiment 2 according to an embodiment of the present invention;

FIG. 8 is a flow chart of Embodiment 3 according to an embodiment of the present invention;

Fig. 9 is a processing flowchart of a policy judgment module according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a UE according to an embodiment of the present invention;

Fig. 12 is a schematic structural diagram of a system for determining uplink SPS activation according to an embodiment of the present invention.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Due to the randomness of wireless channel transmission, the DCI0 for activating the uplink SPS sent by the eNB may be lost due to channel interference and other reasons during transmission, causing the UE to fail to receive the DCI successfully. Therefore, there is an objective problem of unreliability in the activation of the upstream SPS. If the UE fails to receive the DCI0 for activating the uplink SPS, the uplink SPS service states maintained by the eNB and the UE are inconsistent. That is, the uplink SPS state of the base station is in an activated state, while the uplink SPS state of the UE is still in a deactivated state. The inconsistency of uplink SPS status between eNB and UE will lead to the following three problems:

(1) Waste of uplink time-frequency resources: The eNB sends DCI0 to activate the uplink SPS to the UE. Due to the uncertainty of the wireless channel or some other reason, the UE fails to receive this DCI0, so the uplink SPS status maintained by the eNB and the UE respectively Inconsistency occurs, which further leads to that the UE will not use the uplink SPS time-frequency resource allocated to it by the base station in the uplink SPS periodic time slot. However, the eNB cannot also allocate these time-frequency resources to other UEs, resulting in waste of uplink time-frequency resources, as shown in FIG. 3 .

(2) The scheduling quality of the uplink service cannot be guaranteed: when there is service data that meets the characteristics of the uplink SPS to be sent, the UE will notify the eNB by sending an uplink BSR to the eNB, and when the eNB judges that the uplink SPS can be used for the UE, the eNB will notify the UE Send DCI0 to activate uplink SPS. Due to the uncertainty of the wireless channel or some other reason, the UE does not receive the DCI0, resulting in that the uplink SPS cannot be activated in time, and the UE can only obtain resources through dynamic scheduling. Compared with the SPS method, the dynamic scheduling method cannot well guarantee the scheduling quality of uplink services.

(3) The uncertainty of uplink service transmission is increased: if the UE's uplink SPS is not activated and no data service is sent in the uplink SPS periodic time slot, but the current UE's uplink SPS status maintained by the eNB has been activated and the designated time slot in the time slot If data is detected on the time-frequency resource, the eNB will not detect any valid data. According to the processing of the protocol, the eNB will initiate the retransmission process of the uplink service. Because the UE does not send any data in the uplink semi-persistent scheduling period, there is no uplink data indicated by the UE to retransmit, so the base station cannot detect any effective uplink service in the retransmission time slot. The eNB may not only need to allocate control channel resources for reactivating the uplink SPS, but also prolongs the time for the successful activation of the uplink SPS because the eNB cannot know in time that the UE's uplink SPS activation fails, increasing the uncertainty of the UE's uplink service transmission.

The three problems mentioned above all stem from the fact that the eNB cannot obtain the reception status of the DCI0 for activating the uplink SPS by the UE in time when the uplink SPS is activated.

In order to solve the above technical problems, an embodiment of the present invention provides a method for determining SPS activation, the processing flow of which is shown in Figure 4, including:

Step S402, the base station eNB sends DCI0 for activating the uplink SPS, and detects the HARQ information fed back by the UE on the uplink time-frequency resource indicated by DCI0;

Step S404, if the eNB does not detect the HARQ information, resend the DCI0 to activate the uplink SPS;

Step S406, if the eNB detects the HARQ information, and the number of DCI0 sent by the eNB is less than the preset number, the eNB determines that the uplink SPS is activated.

In the embodiment of the present invention, the eNB sends DCI0 to activate the uplink SPS, and detects the HARQ information fed back by the UE on the uplink time-frequency resources indicated by the DCI0; if the eNB does not detect the HARQ information, resends the DCI0 to activate the uplink SPS; if the eNB detects If the number of DCI0 sent during HARQ information is less than the preset number, the eNB determines that the uplink SPS is activated. That is, in the embodiment of the present invention, the eNB can determine whether the uplink SPS is activated within a limited time (determining the preset number of times to send DCI0), which enhances the reliability and timeliness of uplink SPS activation and avoids The mentioned problems of uplink time-frequency resource waste caused by the uplink SPS activation process, the scheduling quality of uplink services cannot be guaranteed, and the uncertainty of uplink service transmission shorten the time for UE and eNB to reactivate when uplink SPS activation fails. Or judge and determine the processing time for abandoning the uplink SPS.

During implementation, before the eNB sends the downlink control information DCI0 for activating the uplink SPS, it includes:

When the UE needs to send uplink services that meet the SPS service characteristics, the UE uses the PUSCH channel to send the BSR to the eNB;

The eNB receives the BSR sent by the UE, and the eNB determines to allocate uplink SPS resources to the UE. At this time, the eNB cannot change the UE's uplink SPS state to an active state, that is, keep the UE's uplink SPS state as a deactivated state.

During implementation, as shown in Figure 4, the eNB detects the HARQ information fed back by the UE on the uplink time-frequency resources indicated by DCI0, including one of the following:

The first case: the eNB does not detect HARQ information on the uplink time-frequency resource indicated by DCI0, and cannot activate the uplink SPS, and determines whether to continue to activate the uplink SPS;

Case 2: When DCI0 and downlink shared channel data are sent in the same downlink subframe, the eNB receives non-deterministic NACK information on the uplink time-frequency resource indicated by DCI0, and determines that the downlink shared channel data has not been successfully received by the UE, DCI0 After being successfully received by the UE, set the uplink SPS state of the UE to active state, and retransmit the downlink shared channel data according to the received NACK information;

Case 3: When DCI0 and downlink shared channel data are not sent in the same downlink subframe, the eNB receives confirmation ACK information on the uplink time-frequency resource indicated by DCI0, determines that DCI0 has been successfully received by the UE, and sets the UE's uplink SPS status is the active state;

Case 4: When DCI0 and downlink shared channel data are sent in the same downlink subframe, the eNB receives ACK information on the uplink time-frequency resource indicated by DCI0, and determines that the downlink shared channel data is successfully received by the UE, and DCI0 is successfully received by the UE Receive, set the uplink SPS state of the UE to active state.

During implementation, if the eNB determines that the uplink SPS is not activated, the eNB can detect the HARQ information fed back by the UE on the physical layer uplink control channel (PUCCH, Physical uplink control channel) resource, and determine whether to continue to activate the uplink SPS. The processing process is at least Including the following two situations:

Case 1: When DCI0 and downlink shared channel data are sent in the same downlink subframe, the eNB detects the ACK information fed back by the UE on the physical layer uplink control channel PUCCH resource, determines that the downlink shared channel data has been successfully received by the UE, and Determine whether to continue to activate the uplink SPS;

Case 2: When DCI0 and downlink shared channel data are sent in the same downlink subframe, the eNB detects the NACK information fed back by the UE on the PUCCH resource, determines that the downlink shared channel data has not been successfully received by the UE, and determines whether to continue to activate Uplink SPS.

Of course, if the number of times the eNB sends the DCI0 is not less than the preset number of times (including the case of greater than or equal to it), the eNB determines to give up the activation of the uplink SPS.

During implementation, preferably, the preset number of times can be determined according to the following steps: the eNB assigns weights to the downlink physical channel parameters reported by the UE to the eNB and the downlink physical channel parameters detected by the eNB; the eNB obtains the parameter values of each downlink physical channel parameter, and calculates The sum of the product of the parameter value and its corresponding weight, set to N.

Wherein, the downlink physical channel parameters mentioned above may include various parameters, for example, channel quality indication (CQI, Channel Quality Indication), downlink block error rate (BLER, Block Error Ratio), and so on.

Based on the same inventive concept, the embodiment of the present invention also provides another method for determining the activation of the uplink semi-persistent scheduling SPS, the processing flow of which is shown in Figure 5, including:

Step S502, the UE detects whether the DCI0 for activating the uplink SPS sent by the base station eNB is received;

Step S504, when the detection result is yes, the UE determines that the uplink SPS is activated;

Step S506, when the detection result is negative, the UE determines that the uplink SPS is not activated.

As shown in the process in Figure 5, when step S504 is implemented, when the detection result is yes, the UE determines that the uplink SPS is activated, which may include the following situations:

The first case: when DCI0 and downlink shared channel data are not sent in the same downlink subframe, the UE uses the uplink time-frequency resources indicated by DCI0 to respond to the eNB to confirm ACK information, and sets its own uplink SPS status to active state;

Case 2: When DCI0 and downlink shared channel data are sent in the same downlink subframe and the downlink shared channel data is successfully parsed, UE uses the uplink time-frequency resources indicated by DCI0 to respond to eNB with ACK information and set its own uplink SPS The state is active;

Case 3: When DCI0 and downlink shared channel data are sent in the same downlink subframe and the downlink shared channel data is not successfully parsed, the UE responds to the eNB with non-deterministic NACK information using the uplink time-frequency resources indicated by DCI0 and sets itself The state of the uplink SPS is active.

The process shown in Figure 5, when step S506 is implemented, when the detection result is No, the UE determines that the uplink SPS is not activated, and may also include the following multiple situations:

The first case: when DCI0 and downlink shared channel data are not sent in the same downlink subframe, the UE does not receive DCI0, and the UE does not perform any operation;

Case 2: When DCI0 and downlink shared channel data are sent in the same downlink subframe and the downlink shared channel data is successfully parsed, the UE responds with ACK information to the eNB using the physical layer uplink control channel PUCCH resource and maintains its own uplink SPS The state is deactivated;

Case 3: When DCI0 and downlink shared channel data are sent in the same downlink subframe and the downlink shared channel data is not successfully parsed, UE uses PUCCH resources to respond NACK information to eNB and keeps its own uplink SPS status as deactivated state.

Figure 4 and Figure 5 respectively describe the determination method of uplink SPS activation from different angles, and now combine the two angles, and use this as a perspective to describe the determination method of uplink SPS activation, including the following steps:

Step a, when the UE needs to send uplink services that meet the SPS service characteristics, the UE sends the corresponding BSR to the eNB;

Step b. After receiving the BSR, the eNB determines through a decision strategy that uplink SPS resources can be allocated to the UE;

Step c. The eNB sends DCI0 for activating the uplink SPS to the UE. At this time, the base station cannot modify the current UE uplink SPS state to "activated state";

Step d, UE successfully detects DCI0 for activating uplink SPS:

1) If there is no downlink shared channel data in the downlink subframe of DCI0 that activates uplink SPS (that is, when DCI0 and downlink shared channel data are not sent in the same downlink subframe), the UE uses the uplink time and frequency indicated by DCI0 that activates uplink SPS resources, respond to eNB with acknowledgment (ACK) information and set its own uplink SPS status to "active state";

2) If the current downlink subframe has downlink shared channel data (that is, when DCI0 and downlink shared channel data are sent in the same downlink subframe), and the downlink shared channel data is successfully parsed, the UE uses the DCI0 indicated by the activated uplink SPS The time-frequency resource responds to the base station with ACK information, and sets its own uplink SPS state to "active state";

3) If there is downlink shared channel data in the current downlink subframe, and the downlink shared channel data has not been successfully parsed, the UE uses the uplink time-frequency resource carried in the DCI0 of the activated uplink SPS to respond to the eNB with non-acknowledgment (NACK) information and set its own The state of the uplink SPS is "active";

Step e, if the UE fails to detect the DCI0 for activating the uplink SPS:

1) If there is no downlink shared channel data in the downlink subframe that sends DCI0 that activates the uplink SPS, the UE does not receive any DCI in the current downlink subframe, and the UE does not perform any operation;

2) If there is downlink shared channel data in the current downlink subframe, and the downlink shared channel data is successfully parsed, UE uses physical layer uplink control channel (PUCCH, Physical uplink control channel) resources to respond to ACK information to eNB and maintain its own uplink SPS The state is "deactivated state";

3) If there is downlink shared channel data in the current downlink subframe, and the downlink shared channel data is not successfully parsed, UE uses PUCCH resources to respond NACK information to eNB, and keeps its own uplink SPS status as "deactivated state";

Step f. According to the subframe timing relationship of the wireless system, the eNB receives the HARQ information fed back by the UE in the uplink subframe indicated by DCI0:

1) The eNB does not detect the downlink HARQ information fed back by the current UE (corresponding to e)(1)) at the uplink time-frequency resource indicated by the DCI0 for activating the uplink SPS, the eNB cannot activate the uplink SPS state, and determines whether to continue to activate through the policy judgment module Uplink SPS;

2) The eNB detects an ACK on the corresponding PUCCH resource (corresponding to e) (2)), and the eNB can determine that the downlink shared channel data is successfully received by the UE through the policy judgment module; if the eNB receives a NACK on the corresponding PUCCH resource ( Corresponding to e)(3)), the eNB can judge that the downlink shared channel service has not been successfully received by the UE through the policy judgment module. The eNB cannot activate the uplink SPS state, and uses the policy judgment module to determine whether to continue to activate the uplink SPS;

3) The eNB receives NACK on the time-frequency resource indicated by the DCI0 of the uplink SPS (corresponding to d) (3)), the eNB can determine that the downlink shared channel data has not been successfully received by the UE through the policy judgment module, and activate the DCI0 of the uplink SPS If it is successfully received by the UE, the eNB can set the current UE's uplink SPS status to "active state", and retransmit the downlink shared channel data according to the received NACK;

4) The eNB receives the ACK (corresponding to d)(1) and d)(2)) on the time-frequency resource indicated by the DCI0 that activates the uplink SPS, and the eNB can determine that the downlink shared channel data is successfully received by the UE through the policy judgment module, If the DCI0 for activating the uplink SPS is successfully received by the UE, the eNB may set the current uplink SPS state of the UE as "activated state".

The embodiments of the present invention can solve three problems, such as the waste of uplink time-frequency resources mentioned in the background art, caused when the DCI0 for activating the uplink SPS sent by the eNB is not successfully received by the UE due to the uncertainty of the wireless channel. According to the method proposed in the embodiment of the present invention, the eNB can obtain the result of uplink SPS activation in time, thereby solving the above three problems.

Hereinafter, the present invention will be described in detail with reference to the drawings and examples.

Embodiment one

With reference to Figure 6, the steps of the embodiment of the present invention are as follows:

Step S602, the UE detects that there is an uplink service that meets the characteristics of the uplink SPS that needs to be sent, and triggers the UE to initiate the process of establishing a BSR;

In step S604, the UE sends a BSR to the eNB to notify the eNB that the UE currently has uplink data satisfying the SPS characteristic to be sent. Here, steps such as UE applying to eNB for scheduling resources of an uplink shared channel (PUSCH, Physical Uplink Share Channel) by sending a scheduling request (SR, Schedule Request) are not within the scope of the present invention, so they are omitted;

Step S606, the base station judges that the uplink SPS can be activated for the current UE;

Step S608, the base station sends PDCCH information to the UE, which carries DCI0 for activating the uplink SPS;

Step S610, the UE successfully receives the PDCCH and parses out the DCI0 for activating the uplink SPS;

Step S612, the UE sends the SPS service to the eNB for the first time using the uplink time-frequency resource carried in the DCI0 for activating the uplink SPS, and carries the ACK confirmation information of the downlink HARQ at the same time;

Step S614, the UE activates the uplink SPS according to the instruction of the eNB;

Step S616, after receiving the ACK information fed back by the UE, the eNB activates the uplink SPS of the current UE after processing by the policy judgment module;

Step S618, according to the configuration of the uplink SPS, the UE periodically sends the uplink service on the designated uplink scheduling resource;

Step S620, eNB sends PDCCH to UE, which includes DCI0 for releasing uplink SPS;

Step S622, the eNB releases the uplink SPS of the current UE;

Step S624, after the UE successfully receives the DCI0 for releasing the uplink SPS, releases the uplink SPS.

Embodiment two

Figure 7 illustrates the scenario where the DCI0 for activating the uplink SPS sent by the eNB to the UE is lost or not successfully received by the UE due to certain reasons such as the uncertainty of the wireless channel:

Step S702, the UE detects that there is an uplink service that meets the uplink SPS characteristics to be sent, and triggers the UE to initiate the process of establishing a BSR;

Step S704, the UE sends a BSR to the eNB to notify the eNB that the current UE has uplink data that meets the SPS characteristics to be sent; here, the UE sends the SR to the eNB to apply for PUSCH scheduling resources and other steps are not within the scope of the present invention, so they are omitted;

Step S706, the base station judges that the uplink SPS can be activated for the current UE;

Step S708, the base station sends physical layer PDCCH information to the UE, which carries DCI0 for activating the uplink SPS. However, due to certain reasons such as the uncertainty of the wireless channel, the DCI0 for activating the uplink SPS was not successfully received by the UE;

Step S710, the eNB does not receive the downlink HARQ information fed back by the UE on the uplink time-frequency resource indicated by the DCI0 for activating the uplink SPS, and the policy judgment module of the eNB judges that the number of uplink SPS activations of the current UE does not exceed the threshold value, and continues to activate Uplink SPS of the current UE;

Step S712, eNB sends physical layer PDCCH information to UE again, which carries DCI0 for activating uplink SPS;

Step S714, UE successfully receives DCI0 for activating uplink SPS;

Step S716, the UE sends the SPS service to the eNB for the first time using the uplink time-frequency resource carried in the DCI0 of the activated uplink SPS, and carries the ACK confirmation information of the downlink HARQ at the same time;

Step S718, the UE activates the uplink SPS according to the instruction of the eNB;

Step S720, after receiving the ACK information fed back by the UE, the eNB activates the uplink SPS of the current UE after processing by the policy judgment module.

Embodiment Three

Figure 8 illustrates the scenario where the eNB simultaneously sends DCI0 and PDSCH services that activate the uplink SPS to the UE:

Step S802, the UE detects that there is an uplink service that meets the uplink SPS characteristics to be sent, and triggers the UE to initiate the process of establishing a BSR;

In step S804, the UE sends a BSR to the eNB to notify the eNB that the UE currently has uplink data satisfying the SPS characteristic to be sent. Here, steps such as UE applying for PUSCH scheduling resources to eNB by sending SR are not within the scope of the present invention, so they are omitted;

Step S806, the base station judges that the uplink SPS can be activated for the current UE;

Step S808, the base station sends physical layer PDCCH information to the UE, which carries DCI0 for activating uplink SPS and DCI indicating downlink PDSCH channel data;

Step S810, the UE successfully parses the PDSCH data and activates the DCI0 of the uplink SPS;

Step S812, the UE sends the SPS service to the eNB for the first time using the uplink time-frequency resource carried in the DCI0 for activating the uplink SPS, and carries the ACK confirmation information of the downlink HARQ at the same time;

Step S814, the UE activates the uplink SPS according to the instruction of the eNB;

Step S816, after receiving the ACK information fed back by the UE, the eNB activates the uplink SPS of the current UE after processing by the policy judgment module.

As mentioned above, the eNB calculates the preset times. Preferably, a policy judgment module can be set in the eNB. The main functions of the policy judgment module include but are not limited to the following points:

According to the downlink physical channel parameters reported by the UE to the eNB and the downlink channel parameters detected by the eNB, including but not limited to CQI, BLER and other parameters, the threshold value of the uplink SPS activation times is calculated in real time.

ActThreshold _max ＝P ₁ ×w ₁ +P ₂ ×w ₂ +...+P _n ×w _n

ActThreshold _max represents the maximum threshold value of the number of uplink SPS activations, that is, the preset number N;

P ₁ , P ₂ ...... P _n , represent relevant parameters that affect the calculation of the number of uplink SPS activations, including but not limited to the downlink physical channel parameters reported by the UE to the eNB and the downlink channel parameters detected by the eNB;

w ₁ , w ₂ . . . _wn are the weight values of the parameters respectively corresponding to P ₁ , P _{2 .} . . P _n .

Maintain the number of uplink SPS activation failures of the current UE. If the number of activation failures exceeds the ActThreshold _max number of times and the uplink SPS of the current UE is successfully activated, the accumulated number of uplink SPS activations of the current UE is cleared.

After sending the DCI0 for activating the uplink SPS, the eNB decides whether to activate the uplink SPS of the current UE according to the downlink HARQ information detected by the physical layer on the uplink time-frequency resource of the SPS.

If the number of failed activations of the uplink SPS of the current UE is greater than or equal to ActThreshold _max , the decision is made not to activate the uplink SPS of the current UE.

The processing flow using this module is shown in Figure 9, including:

Step S902, after sending the DCI0 for activating the uplink SPS, the eNB detects HARQ information on the uplink specific time slot resource;

Step S904, the UE detects the downlink HARQ information responded by the UE on the time-frequency resource indicated by the DCI0 of the activated uplink SPS, if yes, execute step S906, if not, execute step S908;

Step S906, judging that the UE has received DCI0 for activating the uplink SPS, and activating the uplink SPS of the current UE;

Step S908, adding 1 to the number of uplink SPS activation failures: ActULSPSNum+1;

Step S910, judging whether the number of uplink SPS activation failures is greater than or equal to the activation threshold, that is, ActULSPSNum>=ActThreshold, ActThreshold is the tolerable threshold of uplink SPS activation failures calculated according to parameters such as CQI, BLER and their respective weights , if yes, perform step S912, if not, perform step S914;

Step S912, giving up activating the uplink SPS of the current UE;

Step S914, continue to activate the uplink SPS of the current UE.

The content enclosed by the dotted box in the figure is the judgment process of the policy judgment module. According to the downlink physical channel parameters reported by the UE to the eNB and the downlink channel parameters detected by the eNB, including but not limited to CQI, BLER and other parameters, the policy judgment module assigns certain weights to each parameter, and determines the activation according to the weight of each parameter. The threshold value of the number of times DCI0 of uplink SPS is sent. When the number of times eNB sends DCI0 of activating uplink SPS to UE is equal to the threshold value, and eNB has not received the ACK message of activating uplink SPS replied by UE, eNB gives up activating UE’s The uplink SPS service avoids resource waste and inefficiency caused by repeated activation. For example, when the CQI value is very high, equal to or close to 15, and the BLER is low, equal to or close to 0, it indicates that the downlink physical channel condition is very good. At this time, the threshold for the number of transmission times of DCI0 for activating the uplink SPS can be set smaller, and vice versa The same is true.

Based on the same inventive concept, an embodiment of the present invention also provides a base station eNB, the structural diagram of which is shown in Figure 10, including:

The first detection module 1001 is configured to send downlink control information DCI0 for activating the uplink SPS, and detect hybrid automatic repeat request HARQ information fed back by the user equipment UE on the uplink time-frequency resource indicated by DCI0;

The retransmission module 1002 is used to resend the DCI0 to activate the uplink SPS if the detection module 1001 does not detect the HARQ information;

The first determination module 1003 is configured to determine, by the eNB, that the uplink SPS is activated if the detection module 1002 detects HARQ information and the number of times DCI0 is sent is less than a preset number of times.

The detection module is respectively connected with the retransmission module and the first determination module.

Based on the same inventive concept, an embodiment of the present invention also provides a user equipment UE, the structural diagram of which is shown in FIG. 11 , including:

The second detection module 1101 is configured to detect whether the downlink control information DCI0 for activating the uplink SPS sent by the base station eNB is received;

The second determination module 1102 is configured to determine that the uplink SPS is activated when the detection result is yes;

The third determination module 1103 is configured to determine that the uplink SPS is not activated when the detection result is negative.

The second detection module is respectively connected with the second determination module and the third determination module.

Based on the same inventive concept, an embodiment of the present invention also provides a system for determining the activation of an uplink semi-persistent scheduling SPS, as shown in Figure 12, including a connected base station eNB1201 and user equipment UE1202:

eNB 1201 is used to send the downlink control information DCI0 for activating uplink SPS, and detect the hybrid automatic repeat request HARQ information fed back by UE 1202 on the uplink time-frequency resource indicated by DCI0; if no HARQ information is detected, resend DCI0 to activate uplink SPS ; If the HARQ information is detected, and the number of times DCI0 for activating the uplink SPS is less than the preset number of times, determine that the uplink SPS is activated;

The UE 1202 is used to detect whether the downlink control information DCI0 for activating the uplink SPS sent by the eNB 1201 is received; when the detection result is yes, it is determined that the uplink SPS is activated; when the detection result is no, it is determined that the uplink SPS is not activated.

Through the technical solutions and systems provided by the embodiments of the present invention, it can be concluded that the embodiments of the present invention have achieved the following conclusions:

By adding the DCI0 feedback mechanism for activating uplink SPS, the reliability and timeliness of uplink SPS activation are enhanced, and the three problems of uplink time-frequency resource waste caused by the current uplink SPS activation process mentioned above are avoided; and the eNB, when the uplink SPS activation fails, perform reactivation or determine the processing time for abandoning the uplink SPS;

In the scenario of activating the uplink SPS, the agreement on the behavior of UE and eNB and the addition of a policy judgment module on the eNB side and the description of the flow of the policy judgment module can realize the technical solutions described in the embodiments of the present invention;

This technical solution is based on the framework and basis of the existing agreement to solve the problem of uncertain activation of the uplink SPS, and does not violate the agreement and spirit of the existing agreement.

From the above description, it can be seen that the present invention achieves the following technical effects:

In the embodiment of the present invention, the eNB sends DCI0 to activate the uplink SPS, and detects the HARQ information fed back by the UE on the uplink time-frequency resources indicated by the DCI0; if the eNB does not detect the HARQ information, resends the DCI0 to activate the uplink SPS; if the eNB detects If the number of DCI0 sent during HARQ information is less than the preset number, the eNB determines that the uplink SPS is activated. That is, in the embodiment of the present invention, the eNB can determine whether the uplink SPS is activated within a limited time (determining the preset number of times to send DCI0), which enhances the reliability and timeliness of uplink SPS activation and avoids The mentioned uplink SPS activation process causes waste of uplink time-frequency resources, cannot guarantee the scheduling quality of uplink services, and increases the uncertainty of uplink service transmission. The processing time for reactivating or determining to abandon the uplink SPS.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Alternatively, they may be implemented in program code executable by a computing device so that they may be stored in a storage device to be executed by a computing device, and in some cases in an order different from that shown here The steps shown or described are carried out, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (14)

1. the definite method that uplink semi-persistent scheduling SPS activates is characterized in that, comprising:

Base station eNB is sent the Downlink Control Information DCI0 that activates up SPS, on the uplink time of said DCI0 indication, detects the automatic repeat requests HARQ information of mixing of user equipment (UE) feedback;

If said eNB does not detect said HARQ information, resend said DCI0 and activate said up SPS;

If said eNB detects said HARQ information, and the number of times of the said DCI0 that sends of said eNB is less than preset times, and then said eNB confirms that said up SPS is activated.

2. method according to claim 1 is characterized in that, said eNB sends before the Downlink Control Information DCI0 that activates up SPS, comprising:

When said UE had the uplink service needs that satisfy the SPS traffic performance to send, said eNB received the up Buffer Status Report BSR that said UE sends;

Said eNB confirms to distribute up SPS resource to said UE, and it is deactivated state that said eNB keeps the up SPS state of said UE.

3. method according to claim 1 is characterized in that, said eNB detects the HARQ information of UE feedback on the uplink time of said DCI0 indication, comprises one of following:

Said eNB does not detect said HARQ information in the uplink time of said DCI0 indication, can not activate said up SPS, determines whether to continue to activate said up SPS;

When said DCI0 and DSCH Downlink Shared Channel data when same descending sub frame sends; Said eNB receives non-definite nack message on the uplink time of said DCI0 indication; Confirm that said DSCH Downlink Shared Channel data are not successfully received by said UE; Said DCI0 is successfully received by said UE, and the up SPS state that said UE is set is an activated state, and carries out the re-transmission of DSCH Downlink Shared Channel data according to the nack message that receives;

When said DCI0 and DSCH Downlink Shared Channel data not when same descending sub frame sends; Said eNB receives on the uplink time of said DCI0 indication and confirms ACK information; Confirm that said DCI0 is successfully received by said UE, the up SPS state that said UE is set is an activated state;

When said DCI0 and DSCH Downlink Shared Channel data when same descending sub frame sends; Said eNB receives ACK information on the uplink time of said DCI0 indication; Confirm that said DSCH Downlink Shared Channel data are successfully received by said UE; Said DCI0 is successfully received by said UE, and the up SPS state that said UE is set is an activated state.

4. method according to claim 1; It is characterized in that; If said eNB confirms that said up SPS is not activated, then said eNB detects the HARQ information of UE feedback on physical layer ascending control channel PUCCH resource, and determines whether to continue to activate said up SPS.

5. method according to claim 4 is characterized in that, said eNB detects the HARQ information of UE feedback on physical layer ascending control channel PUCCH resource, comprising:

When said DCI0 and DSCH Downlink Shared Channel data when same descending sub frame sends, said eNB detects the ACK information of UE feedback on physical layer ascending control channel PUCCH resource, confirm that said DSCH Downlink Shared Channel data are successfully received by UE;

When said DCI0 and DSCH Downlink Shared Channel data when same descending sub frame sends, said eNB detects the nack message of UE feedback on said PUCCH resource, confirm that said DSCH Downlink Shared Channel data are not successfully received by UE.

6. according to each described method of claim 1 to 5, it is characterized in that when the number of times that said eNB sends said DCI0 was not less than preset times, then said eNB confirmed to abandon the activation of said up SPS.

7. method according to claim 6 is characterized in that, said preset times is confirmed as follows:

Said eNB is that down physical channel parameter and the detected down physical channel parameter of said eNB that said UE reports to said eNB assigns weight;

Said eNB obtains the parameter value of said each down physical channel parameter, calculates the sum of products of the said parameter value weight corresponding with it, is set to said preset times.

8. method according to claim 7 is characterized in that, said down physical channel parameter comprises: channel quality indicator (CQI) and descending block error rate BLER.

9. the definite method that uplink semi-persistent scheduling SPS activates is characterized in that, comprising:

User equipment (UE) detects the Downlink Control Information DCI0 of the up SPS of activation that whether receives the base station eNB transmission;

When the test results is yes, said UE confirms that said up SPS is activated;

When said testing result for not the time, said UE confirms that said up SPS is not activated.

10. method according to claim 9 is characterized in that, when the test results is yes, said UE confirms that said up SPS is activated, and comprises one of following:

When said DCI0 and DSCH Downlink Shared Channel data not when same descending sub frame sends, said UE uses the uplink time of said DCI0 indication to respond to said eNB to confirm ACK information, and the up SPS state that self is set is an activated state;

When said DCI0 and DSCH Downlink Shared Channel data are sent and said DSCH Downlink Shared Channel data when successfully being resolved at same descending sub frame; Said UE uses the uplink time of said DCI0 indication to respond ACK information to said eNB, and the up SPS state that self is set is an activated state;

When said DCI0 and DSCH Downlink Shared Channel data are sent and said DSCH Downlink Shared Channel data when successfully not resolved at same descending sub frame; Said UE uses the uplink time of said DCI0 indication to respond non-definite nack message to said eNB, and the up SPS state that self is set is an activated state.

11. according to claim 9 or 10 described methods, it is characterized in that, when said testing result for not the time, said UE confirms that said up SPS is not activated, and comprises one of following:

When said DCI0 and DSCH Downlink Shared Channel data not when same descending sub frame sends, said UE does not receive said DCI0, said UE undo;

When said DCI0 and DSCH Downlink Shared Channel data are sent and said DSCH Downlink Shared Channel data when successfully being resolved at same descending sub frame; Said UE uses physical layer ascending control channel PUCCH resource to respond ACK information to said eNB, and to keep the up SPS state of self be deactivated state;

When said DCI0 and DSCH Downlink Shared Channel data are sent and said DSCH Downlink Shared Channel data when successfully not resolved at same descending sub frame; Said UE uses said PUCCH resource to respond nack message to said eNB, and to keep the up SPS state of self be deactivated state.

12. a base station eNB is characterized in that, comprising:

First detection module is used to send the Downlink Control Information DCI0 that activates up SPS, on the uplink time of said DCI0 indication, detects the automatic repeat requests HARQ information of mixing of user equipment (UE) feedback;

Retransmit module is used for resending said DCI0 and activating said up SPS if said detection module does not detect said HARQ information;

First determination module is used for if said detection module detects said HARQ information, and the number of times of the said DCI0 that sends confirms then that less than preset times said up SPS is activated.

13. a user equipment (UE) is characterized in that, comprising:

Second detection module is used to detect the Downlink Control Information DCI0 that whether receives the up SPS of activation that base station eNB sends;

Second determination module is used for when the test results is yes, confirms that said up SPS is activated;

The 3rd determination module, be used for when said testing result for not the time, confirm that said up SPS is not activated.

14. a uplink semi-persistent scheduling SPS activates fixed system really, it is characterized in that, comprises base station eNB and user equipment (UE):

Said eNB is used to send the Downlink Control Information DCI0 that activates up SPS, on the uplink time of said DCI0 indication, detects the automatic repeat requests HARQ information of mixing of said UE feedback; If do not detect said HARQ information, resend said DCI0 and activate said up SPS; If detect said HARQ information, and the number of times of the said DCI0 that sends confirms then that less than preset times said up SPS is activated;

Said UE is used to detect the Downlink Control Information DCI0 that whether receives the up SPS of activation that said eNB sends; When the test results is yes, confirm that said up SPS is activated; When said testing result for not the time, confirm that said up SPS is not activated.

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