CN106533633B - Information processing method, user equipment and base station - Google Patents

Abstract

Embodiments of the present invention disclose an information processing method, user equipment, and base station. The method includes: starting a first timer when receiving an uplink transmission instruction; and starting a second timer when the first timer times out and monitor the physical downlink transmission control channel PDCCH within the time period of the second timer.

Description

Information processing method, user equipment and base station

technical field

The present invention relates to the field of wireless communication, and in particular, to an information processing method, user equipment and base station.

Background technique

Data transfers are usually bursty, with data transfers for a period of time, but no data transfers for a longer period of time. When there is no data transmission, the user equipment will be able to reduce power consumption by stopping the monitoring and detection of the Physical Downlink Control Channel (PDCCH), thereby extending the standby time. Therefore, discontinuous reception (Discontinuous Reception) is proposed. , DRX) transport mechanism.

The basic mechanism of DRX is to configure a DRX cycle for a user equipment (User Equipment, UE) in a radio resource connection state. As shown in FIG. 1 , the DRX cycle consists of an active period and a silent period: during the active period, the user equipment monitors and receives the PDCCH; during the silent period, the user equipment does not receive the PDCCH to reduce power consumption. In this case, if the base station sends the PDCCH to the user equipment during the silent period of the user equipment, the user equipment cannot receive the PDCCH, which will result in abnormal transmission.

With the development of communication technology, Licensed-Assisted Access (LAA) has been introduced to rely on carrier aggregation technology to ensure higher efficiency by aggregating unlicensed frequency bands into Long Term Evolution (LTE) licensed frequency bands. data rate. Affected by Listen Before Talk (LBT) in LAA, the uplink adopts the asynchronous hybrid automatic repeat request (HARQ) mode instead of the synchronous HARQ mode.

If asynchronous HARQ is used, the base station will asynchronously send the uplink retransmission indication through the PDCCH after decoding the uplink data error. At this time, the user equipment may be in the silent period and not monitoring the PDCCH, and the UE does not know when to switch to The PDCCH is monitored during the activation period, which will cause the uplink retransmission indication to fail to be received correctly, resulting in the failure of transmission of the uplink retransmission indication, the retransmission delay is large, or the retransmission cannot be performed.

SUMMARY OF THE INVENTION

In view of this, the embodiments of the present invention are expected to provide an information processing method, user equipment, and base station, which can be used to at least partially solve the above-mentioned problem of failure to transmit an uplink retransmission indication.

In order to achieve the above object, the technical scheme of the present invention is achieved in this way:

A first aspect of the embodiments of the present invention provides an information processing method, and the method includes:

When receiving the uplink transmission indication, start the first timer;

When the first timer times out, start a second timer;

Monitor the physical downlink transmission control channel PDCCH within the time period of the second timer.

Based on the above scheme, the method includes:

The physical uplink of the user equipment shares the monitoring channel PUSCH to form the monitoring result;

determining a time offset based on the monitoring result;

After the first timer times out, starting the second timer includes:

The second timer is started when the first timer times out and the time out reaches the time offset.

Based on the above solution, the determining the time offset based on the monitoring result includes:

If the monitoring result indicates that the PUSCH is busy, determine that the time offset is equal to the first offset;

If the monitoring result indicates that the PUSCH is idle, determine that the time offset is equal to the second offset;

The second offset is greater than the first offset.

Based on the above scheme, the method further includes:

receiving first indication information;

The timing duration of the first timer is determined based on the first indication information.

Based on the above solution, the timing duration of the first timer includes a first timing duration and a second timing duration; wherein, the first timing duration is not equal to the second timing duration;

The determining the timing duration of the first timer based on the indication information includes:

Based on the first indication information, the first timing duration or the second timing duration is used as the timing duration of the first timer.

Based on the above scheme, the method further includes:

receiving second indication information;

determining a first time interval for starting the second timer based on the second indication information;

After the first timer times out, starting the second timer includes:

The second timer is started after the first timer times out for a time-out period equal to the first time interval.

Based on the above solution, after the first timer times out and the time-out duration is equal to the first time interval, starting the second timer includes:

When the first timer times out, start the second timer immediately;

or

After the first timer times out, the second timer is started after an interval of N subframes; wherein, the N is an integer not less than 1.

Based on the above solution, the start time of the first timer is the first start time;

The start time of the second timer is the second start time;

The time interval between the first activation moment and the second activation moment is a second time interval;

The second time interval is determined according to the time required to complete the uplink data transmission after sending the uplink transmission instruction and the time required to decode the uplink data.

Based on the above scheme, the method further includes:

The information of the PDCCH is monitored within the time period of the second timer or the second timer times out, and the time is stopped.

Based on the above solution, the PDCCH can be used to carry an uplink retransmission indication.

A second aspect of the embodiments of the present invention provides an information processing method, the method includes:

configuring a first timer and a second timer to form configuration information; wherein the configuration information is used to control the user equipment to start the first timer and the second timer respectively after receiving the uplink transmission indication;

The configuration information is sent to the user equipment.

Based on the above solution, the configuration information includes any one of the following;

The configuration information includes the timing duration of the first timer and the time offset for starting the second timer after the first timer times out;

or

The configuration information includes at least two timing durations of the first timer;

or

The configuration information includes a first time interval for starting the second timer after the first timer expires.

Based on the above scheme, the method further includes:

When the configuration information includes at least two timing durations of the first timer, sending first indication information for indicating selection of the timing duration of the first timer;

or

When the configuration information includes a first time interval for starting the second timer after the first timer expires, second indication information for indicating selection of the first time interval is sent.

Based on the above solution, the configuration of the first timer and the second timer to form configuration information includes:

According to the subframe configuration, determine the time interval between the sending time of sending the uplink transmission indication and the reception of the uplink transmission data;

determining the processing time required to decode the uplink data;

based on the duration interval and the processing time, configuring a second time interval between a first start time when the first timer is started to a second start time when the second timer is started;

The first timer and the second timer are configured according to the second time interval and the configuration information is formed.

A third aspect of the embodiments of the present invention further provides a user equipment, which includes:

a first timing unit, configured to start a first timer when an uplink transmission instruction is received;

a second timing unit, configured to start a second timer when the first timer times out;

A monitoring unit, configured to monitor the physical downlink transmission control channel PDCCH within the time period of the second timer.

Based on the above solution, the monitoring unit is further configured to monitor the physical uplink shared channel PUSCH to form a monitoring result;

The user equipment also includes:

a first determining unit, configured to determine a time offset based on the monitoring result;

The second timing unit is configured to start the second timer when the first timer times out and the time out reaches the time offset.

Based on the above solution, the first determining unit is specifically configured to, if the monitoring result indicates that the channel is busy, determine that the time offset is equal to the first offset; if the monitoring result indicates that the channel is idle, determine the time offset The time offset is equal to the second offset; the second offset is greater than the first offset.

Based on the above solution, the user equipment further includes:

a first receiving unit, configured to receive the first indication information;

A second determining unit, configured to determine the timing duration of the first timer based on the first indication information.

Based on the above solution, the timing duration of the first timer includes a first timing duration and a second timing duration; wherein, the first timing duration is not equal to the second timing duration;

The second determining unit is specifically configured to use the first timing duration or the second timing duration as the timing duration of the first timer based on the first indication information.

Based on the above solution, the user equipment further includes:

a second receiving unit, configured to receive second indication information;

a third determining unit, configured to determine a first time interval for starting the second timer based on the second indication information;

The second timing unit is specifically configured to start the second timer after the first timer times out and the timeout period is equal to the first time interval.

Based on the above solution, the second timing unit is specifically configured to start the second timer immediately after the first timer times out; or start the second timer after an interval of N subframes when the first timer times out the second timer; wherein, the N is an integer not less than 1.

A fourth aspect of the embodiments of the present invention provides a base station, where the base station includes:

a configuration unit configured to configure a first timer and a second timer to form configuration information; wherein the configuration information is used to control the user equipment to respectively start the first timer and the second timer after receiving the uplink transmission indication timer;

A sending unit, configured to send the configuration information to the user equipment.

Based on the above solution, the configuration information includes any one of the following;

The configuration information includes the timing duration of the first timer and the time offset for starting the second timer after the first timer times out;

or

The configuration information includes at least two timing durations of the first timer;

or

The configuration information includes a first time interval for starting the second timer after the first timer expires.

Based on the above solution, the sending unit is further configured to, when the configuration information includes at least two timing durations of the first timer, send first indication information for indicating selection of the timing duration of the first timer ; or when the configuration information includes a first time interval for starting the second timer after the first timer expires, sending second indication information for indicating selection of the first time interval.

In the information processing method, user equipment, and base station described in the embodiments of the present invention, a first timer and a second timer are started in the UE. The first timer starts timing after receiving an uplink transmission instruction, and the second timer starts to count. It starts timing after the first timer expires. During the timing time of the second timer, the UE will monitor the PDCCH, so as to detect the information carried on the PDCCH, such as the uplink retransmission caused by the failure to respond to the uplink transmission indication. In this way, the UE can monitor the uplink retransmission indication, thereby reducing the transmission failure rate of the uplink transmission indication information.

Description of drawings

1 is a schematic diagram of a DRX cycle;

2 is a schematic flowchart of a first information processing method provided by an embodiment of the present invention;

3 is a schematic flowchart of a second information processing method provided by an embodiment of the present invention;

4 is a schematic diagram of the effect of a silent period and an active period of a UE according to an embodiment of the present invention;

5 is a schematic flowchart of a third information processing method provided by an embodiment of the present invention;

6 is a schematic flowchart of forming configuration information according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a UE according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 9 to FIG. 13 are schematic diagrams showing the configuration of the first timer based on the information processing method according to the embodiment of the present invention.

Detailed ways

The technical solutions of the present invention will be further elaborated below with reference to the accompanying drawings and specific embodiments of the description.

Method Embodiment 1:

As shown in FIG. 2, this embodiment provides an information processing method, and the method includes:

Step S110: when receiving the uplink transmission indication, start the first timer;

Step S120: when the first timer times out, start a second timer;

Step S130: Monitor the physical downlink transmission control channel PDCCH within the time period of the second timer.

The information processing method described in this embodiment can be applied to the UE. The uplink transmission indication mentioned in the step S110 may be carried in the PDCCH information sent in the PDCCH channel. The uplink transmission indication is used to instruct the UE to perform uplink data transmission, in this case, the base station will receive the data sent by the UE.

In step S110, after the uplink transmission indication is received, a first timer is started, and the first timer may be an uplink hybrid automatic repeat request timer UL HARQ RTT Timer. The first timer will be used to trigger the start of the second timer. During the specific implementation, the PDCCH channel may or may not be monitored within the timing time of the first timer, but at least the retransmission indication corresponding to the uplink transmission triggered by the uplink transmission indication is not required to be monitored. .

In step S120, after the first timer times out, a second timer is started. The second timer may be an uplink discontinuous reception retransmission timer UL DRX-RetransmissionTimer.

In step S130, within the time period of the second timer, the UE will monitor the PDCCH. In this case, if the base station has an uplink retransmission indication, it may be carried in the PDCCH and sent to the UE, so that the UE can monitor and send the PDCCH to the UE. The uplink retransmission indication is detected, and it is known that uplink retransmission needs to be performed and uplink data retransmission is performed.

Obviously, the information processing method in this embodiment can well solve the problem of the failure of the uplink retransmission indication transmission, thereby improving the retransmission response rate.

There are various implementation manners of the steps S110 to S120, and the following three implementation manners are provided in this embodiment:

method one:

As shown in Figure 3 and Figure 4, the method includes:

Step S101: the user equipment monitors the physical uplink shared channel PUSCH to form a monitoring result;

Step S102: Based on the monitoring result, determine a time offset;

The step S120 includes:

The second timer is started when the first timer times out and the time out reaches the time offset.

In this manner, the UE will also monitor the physical uplink shared channel to form a monitoring result. The PUSCH is an abbreviation of Physical Uplink Shared Channel. Usually, the monitoring result can be used to determine the time offset in this embodiment, and can also be used to determine whether to send uplink data in response to the uplink transmission instruction. The time offset corresponds to a time length, and in step S120, the second timer is started after the first timer times out and the time-out time is as long as the time offset.

As shown in FIG. 4 , in the waveform shown in FIG. 4 , the peaks indicate that the UE is in the active period. During the active period, the UE will monitor the PDCCH. During the silent period, the UE will be in the silent period and will not monitor the PDCCH. . In this embodiment, after receiving the uplink transmission instruction, the UE sends uplink data in response to the uplink transmission instruction, and then sends an uplink retransmission instruction on the PDCCH if decoding by the base station is unsuccessful. If the UE switches between the active period and the silent period according to the DRX cycle shown in FIG. 1 , it is obviously possible that the uplink retransmission instruction may not be received. In FIG. 4, because the first timer and the second timer are respectively started, and the PDCCH is monitored within the timing time of the second timer, it is equivalent to increasing the activation period of the UE, so that the UE will be activated in the newly added activation period. Continue to monitor the PDCCH during the period, which increases the probability that the UE monitors the uplink retransmission indication sent by the base station. In FIG. 4 , the first transmission indication received by the UE from the base station is one of the foregoing uplink transmission indications. Comparing FIG. 1 and FIG. 4, it can be seen that in the original silent period in FIG. 1, due to the introduction of the first timer and the second timer, the UE switches to the activator to monitor the PDCCH within the timing time of the second timer.

In this manner, the step S102 may include:

If the monitoring result indicates that the PUSCH is busy, determine that the time offset is equal to the first offset;

If the monitoring result indicates that the PUSCH is idle, determine that the time offset is equal to the second offset;

The second offset is greater than the first offset.

The PUSCH busy indicates that the current PUSCH is occupied by other UEs, and there is no resource available for the current UE to send uplink data. In this case, the base station will not receive the uplink data. At this time, the base station does not need to decode the uplink data and then instruct the UE to retransmit, but can directly instruct the retransmission when the designated transmission resource does not receive the uplink data, so this time The time at which the base station sends the uplink retransmission indication may be earlier than the time at which the retransmission indication is sent when the uplink data is received but decoding fails. Therefore, based on this phenomenon analysis in this embodiment, if the PUSCH is busy in this embodiment, the time offset is set as the first offset, and the PUSCH is idle as the second offset. The first offset is smaller than the second offset.

The first offset is smaller than the second offset, indicating that when the first offset is used, the second timer will be started earlier, and the UE will start monitoring the PDCCH earlier.

Obviously, through the above analysis, two offsets with different offset durations are designed, which can well match the communication scenario of wireless communication, and reduce the failure of uplink retransmission indication reception while saving UE power consumption as much as possible. The probability.

Method two:

The method also includes:

receiving first indication information;

The timing duration of the first timer is determined based on the first indication information.

In this embodiment, the timing duration of the first timer can be dynamically determined. In this embodiment, the UE further receives the first indication information from the base station, and determines the timing duration of the first timer according to the first indication information. In this embodiment, the first indication information may directly include the timing duration of the first timer, and may also include index information that confirms the timing duration of the first timer, and the like. For example, the timing duration of the first timer includes N types, the N types are stored in the base station and the UE respectively, and each type is set with a corresponding index, and the first indication information may include the index, In this way, after the UE receives the first indication information, the time duration of the first timer can be determined by query.

The first indication information may be determined by the base station according to its own current load and/or the transmission delay requirement of the corresponding uplink data. At present, the base station feels that its load is heavy, and the transmission delay requirement of the service that needs to be retransmitted at present is also low. If it does not want to further increase the load, the base station will delay sending the downlink retransmission instruction. At this time, it can pass the first The indication information sets a longer timing time for the first timer.

Specifically, for example, the timing duration of the first timer includes a first timing duration and a second timing duration; wherein, the first timing duration is not equal to the second timing duration;

The determining the timing duration of the first timer based on the indication information includes: based on the first indication information, using the first timing duration or the second timing duration as the timing duration of the first timer. Timing time.

The first timing duration and the second timing duration may be pre-stored in both the base station and the UE, and the UE will determine whether to use the first timing duration or the second timing duration according to the first indication information. The timing of the first timer is performed. In this manner, once the first timer times out, the second timer is started immediately.

In this manner, the UE will dynamically set the timing duration code of the first timer according to the first indication information sent by the base station, so that the transmission requirements in different wireless transmission scenarios can be met, and the implementation is simple.

Method three:

The method also includes:

receiving second indication information;

determining a first time interval for starting the second timer based on the second indication information;

The step S120 includes:

The second timer is started after the first timer times out for a time-out period equal to the first time interval.

In this embodiment, the UE will receive the second indication information from the base station, and the time interval between the end of the first timer and the start of the second timer indicated by the indication information is the time interval of the first timer. a time interval. The duration of the first time interval may be from 0 to any duration, and in this embodiment, it may generally include one or more subframes. Usually, in this embodiment, the time duration of the first timer is statically set, but the first time interval is dynamically changed, which can be used to dynamically adjust the start time of the second timer to meet the current The need to transfer the scene.

Specifically, starting the second timer after the first timer times out and the time-out duration is equal to the first time interval includes: starting the first timer immediately after the first timer times out a second timer; or when the first timer times out, start the second timer after an interval of N subframes; wherein, the N is an integer not less than 1. The N can be a value such as 1, 2, or 3.

The second indication information in this embodiment may also be determined by the base station based on its own load and/or and/or the transmission delay requirement of the corresponding uplink data. When the uplink data transmission delay requirement is high, the The base station may send the uplink retransmission instruction as soon as possible. At this time, in order to ensure that the UE successfully receives the uplink retransmission instruction, it may control all the retransmission instructions within a small time interval after the first timer expires. The second timer is started to monitor the PDCCH, so as to facilitate the completion of uplink data retransmission as soon as possible.

In this embodiment, the start time of the first timer is the first start time; the start time of the second timer is the second start time; the difference between the first start time and the second start time The time interval between is a second time interval; the second time interval is determined according to the time required for sending the uplink transmission instruction to completing the uplink data transmission and the time required for decoding the uplink data.

During the second time interval between the first activation moment and the second activation moment, the UE may need to send uplink data to the base station, and the base station needs to decode the uplink data and determine whether to send an uplink retransmission indication according to the decoding result, and The uplink transmission indication is sent when the uplink retransmission indication needs to be sent. Therefore, in this embodiment, when setting at least one of the timing duration of the first timer, the timing duration of the second timer, the time offset, and the first time interval, it can be calculated by estimating all the parameters. The second time interval is determined.

The method also includes:

The information of the PDCCH is monitored within the time period of the second timer or the second timer times out, and the time is stopped.

In this embodiment, the UE does not monitor the transmission of information on the PDCCH within the timing time of the second timer, and the second timer will keep timing until the timing expires, and the timing will stop, indicating that there is a high probability at this time. It means that the uplink data transmission is successful, and there is no need to retransmit the uplink data. If the information on the PDCCH is monitored, if it is necessary to perform uplink retransmission, the information carried by the PDCCH will carry the uplink retransmission information. If it is not necessary to perform uplink retransmission, the UE does not need to retransmit. The PDCCH monitoring is performed during the original silent period by keeping the active period, so the second timer stops timing, and the UE stops the PDCCH monitoring, so as to save the power consumption of the UE as much as possible and prolong the standby time of the UE.

In this embodiment, the local storage medium of the UE may store configuration information of the first timer and the second timer, and the configuration information may be pre-stored in the UE based on a communication protocol, or It may be received by the UE from information sent by the base station in advance. For example, the configuration information is carried in the PDCCH and sent to the UE, and the UE obtains the configuration information by detecting the PDCCH.

Of course, in this embodiment, the first indication information and the second indication information may be sent by the base station to the UE through dedicated signaling, or may be carried together with the uplink transmission indication information in the same message and transmitted to the UE In this case, when the UE receives the uplink transmission indication, it receives the first indication information or the second indication information, which is convenient for the UE to start the first timer and all the second timer.

Method embodiment two:

As shown in FIG. 5 , this embodiment provides an information processing method, and the method includes:

Step S210: Configure a first timer and a second timer to form configuration information; wherein the configuration information is used to control the user equipment to start the first timer and the second timer respectively after receiving the uplink transmission indication ;

Step S220: Send the configuration information to the user equipment.

The information processing method described in this embodiment can be applied to a base station. In this embodiment, the first timer and the second timer are dynamically configured by the base station, and form configuration information. For example, the base station configures and forms the configuration information based on a communication protocol or an indication of an upper-layer network element.

In step S220, the configuration information is sent to the UE, in this case, it is convenient for the user to start the first timer and the second timer according to the configuration information, and the retransmission processing of the uplink data is better implemented.

The configuration information in this embodiment may be broadcast to all UEs through a system message or a radio link connection RRC message sent by the base station, or may be individually sent by the base station to UEs that need to perform uplink data transmission.

The configuration information can be formed in many ways, and at least three optional ways are provided below:

Option 1:

The configuration information includes a timing duration of the first timer and a time offset for starting the second timer after the first timer expires. In a specific implementation process, the time offset may include a first offset and a second offset, and the UE will select a prime number of the first offset or the second offset according to the monitoring result of the channel quantity. Usually, if the monitoring result indicates that the PUSCH is busy, the first offset is selected; if the monitoring result indicates that the PUSCH is idle, the second offset is selected.

Method two:

The configuration information includes at least two timing durations of the first timer. At least two timing durations of the first timer are configured.

Method three:

The configuration information includes a first time interval for starting the second timer after the first timer expires. The time interval corresponding to the first time interval may range from 0 to N subframes.

In this embodiment, when the configuration information includes at least two timing durations of the first timer, the method may further include: sending a first indication for indicating selection of the timing duration of the first timer information. The first indication information will instruct the UE to select the timing duration of the first timer.

In this embodiment, when the configuration information includes a first time interval for starting the second timer after the first timer expires, the method further includes: sending an instruction to select the first time second indication information of the interval. The second indication information is used to indicate the interval duration of the first time interval when the second timer starts after the first timer times out.

Here, the first indication information and/or the second indication information may be determined by the base station according to its own load status and/or parameters such as transmission delay requirements of uplink data. In this way, the start time of the second timer can be dynamically controlled, that is, the UE can be controlled to switch to the active period to monitor the PDCCH, and at the same time, information such as data transmission quality requirements and the load status of the base station can be well considered. the relationship between the three.

As a further improvement of this embodiment, as shown in FIG. 6 , the step S110 includes:

Step S111: According to the subframe configuration, determine the time interval between the sending time of sending the uplink transmission indication and the reception of the uplink transmission data;

Step S112: determining the processing time required for decoding the uplink data;

Step S113: Based on the duration interval and the processing time, configure a second time interval between the first start time of the first timer and the second start time of the second timer;

Step S114: Configure the first timer and the second timer according to the second time interval and form the configuration information.

In this embodiment, the base station will dynamically determine the time position of the resource instructing the UE to send uplink data according to the subframe configuration, and predict the processing time of the base station itself to decode the uplink data, so as to determine the first timer of the first timer. From the start time to the second time interval before the second start time of the second timer, configure the first timer and the second timer, which can greatly improve the UE's reception of the data sent by the base station. The probability of uplink retransmission indication.

Of course, if the configuration information is formed by the base station, the base station can finally determine according to the configuration information that the UE is in the active period of monitoring the PDCCH, and sending the uplink retransmission indication at the UE's activator will obviously reduce the UE's The phenomenon that the uplink retransmission indication cannot be received due to not monitoring the PDCCH during the silent period.

Device Embodiment 1:

As shown in FIG. 7 , this embodiment provides a user equipment UE, where the UE includes:

a first timing unit 110, configured to start a first timer when receiving an uplink transmission indication;

a second timing unit 120, configured to start a second timer when the first timer times out;

The monitoring unit 130 is configured to monitor the physical downlink transmission control channel PDCCH within the time period of the second timer.

The first timing unit 110 and the second timing unit 110 in this embodiment may each include a timer, a timing control chip or a control circuit, and the like. In this embodiment, the UE obviously includes a communication interface capable of information exchange with the base station, and when the UE determines to receive the uplink transmission indication, it starts a first timer. The second timing unit 120 starts the second timer after the first timer expires.

The monitoring unit 130 monitors the PDCCH within the time period of the second timer, so as to be able to monitor the uplink retransmission indication sent by the base station. For the specific structure of the monitoring unit 130, reference may be made to the structure of the UE monitoring channel in the prior art, which will not be repeated here.

By starting the first timer and the second timer, and the settings of the first timing unit 110 and the second timing unit 120, the UE described in this embodiment can greatly increase the amount of time it can monitor the transmission of the base station. The probability of uplink retransmission indication.

The specific structure of the UE is not limited to the above structure, and may have multiple structures, and several optional structures are provided below:

Optional structure one:

The monitoring unit 130 is further configured to monitor the physical uplink shared channel PUSCH to form a monitoring result;

The UE also includes:

a first determining unit, configured to determine a time offset based on the monitoring result;

The second timing unit is configured to start the second timer when the first timer times out and the time out reaches the time offset.

The first determining unit may include structures such as a processor or a processing circuit. The processor may include a central processing unit, a digital signal processor, a programmable array, an application processor, or a microprocessor, among others. The processing circuit may comprise an application specific integrated circuit. The UE further includes a storage medium, where the storage medium stores executable codes, and the processor or processing circuit can realize the determination of the above-mentioned time offset by reading and executing the executable codes.

Specifically, the first determining unit is specifically configured to, if the monitoring result indicates that the PUSCH is busy, determine that the time offset is equal to the first offset; if the monitoring result indicates that the PUSCH is idle, determine The time offset is equal to a second offset; the second offset is greater than the first offset.

In this embodiment, a first offset and a second offset are set in advance. In this embodiment, the second determining unit is mainly used to select the first offset or the second offset according to the monitoring result. It has the characteristics of simple realization and simple structure.

Optional structure two:

The UE also includes:

a first receiving unit, configured to receive the first indication information;

A second determining unit, configured to determine the timing duration of the first timer based on the first indication information.

The first receiving unit described in this embodiment may include a receiving antenna in the UE, and the receiving antenna may receive information from the base station. In this embodiment, the first receiving unit is configured to receive the first indication information.

For the physical structure of the second determining unit, reference may be made to the first determining unit, but in this embodiment, the second determining unit is used to determine the timing duration of the first timer.

Specifically, for example, the timing duration of the first timer includes a first timing duration and a second timing duration; wherein, the first timing duration is not equal to the second timing duration; the second determining unit, specifically, uses Based on the first indication information, the first timing duration or the second timing duration is used as the timing duration of the first timer.

In this embodiment, the timing duration of the first timer is dynamically selected according to the first indication information, so as to dynamically select the start time of the second timer, thereby dynamically selecting the time for the UE to monitor the PDCCH. opportunity. The first indication information comes from the base station, which can greatly increase the probability of monitoring the uplink retransmission indication carried on the PDCCH.

Optional structure three:

The UE also includes:

a second receiving unit, configured to receive second indication information;

a third determining unit, configured to determine a first time interval for starting the second timer based on the second indication information;

The second timing unit 120 is specifically configured to start the second timer after the first timer times out and the time-out duration is equal to the first time interval.

In this embodiment, the second receiving unit may also include a communication interface such as an antenna capable of performing information interaction with the base station.

For the physical structure of the third determination unit, reference may be made to the first determination unit or the second determination unit. However, in this structure, the third determining unit is configured to determine the first time interval based on the second indication information, so that the start time of the second timer is also dynamically determined to meet the communication requirements of the current communication scenario, In order to obtain a higher probability of receiving the uplink retransmission indication.

Specifically, the second timing unit 120 is specifically configured to start the second timer immediately after the first timer times out; or after the interval of N subframes when the first timer times out Start the second timer; wherein, the N is an integer not less than 1.

In this embodiment, the first time interval may be 0, that is, once the first timer times out, the second timer will start immediately, and the first time interval may also be the duration of N subframes, because Regardless of whether it is uplink transmission or downlink transmission, subframes may be used as time units, and N subframes are used as the first time interval. The characteristics of receiving the uplink retransmission indication.

In addition, the start time of the first timer is the first start time; the start time of the second timer is the second start time; the time interval between the first start time and the second start time is the second time interval; the second time interval is determined according to the time required for sending the uplink transmission instruction to completing the uplink data transmission and the time required for decoding the uplink data. In this way, the UE can be guaranteed to have as many silent periods as possible, so as to reduce the power consumption of the terminal.

Of course, in specific implementation, the second timing unit 120 stops timing by monitoring the information of the PDCCH within the timing time of the second timer or the second timer times out. In this way, the power consumption of the UE due to monitoring the PDCCH can be reduced.

Device Embodiment 2:

As shown in Figure 8, this example provides a base station, the base station includes:

The configuration unit 210 is configured to configure a first timer and a second timer to form configuration information; wherein the configuration information is used to control the user equipment to respectively start the first timer and the first timer after receiving the uplink transmission indication two timers;

The sending unit 220 is configured to send the configuration information to the user equipment.

The base station described in this embodiment may be an evolved base station eNB or the like.

The specific structure of the configuration unit 210 in this embodiment may include a processor or a processing circuit. For the specific structure of the processor or the processing circuit, reference may be made to the first embodiment of the device. The processor or the processing circuit may implement the formation of the above-mentioned configuration information by executing specific instructions.

The sending unit 220 may include an air interface formed by a sending antenna or a sending antenna array, such as an X2 interface, which is specially used for information exchange with the UE.

In this embodiment, the configuration information is configured by the base station and sent to the UE. In this case, the base station can increase the probability of successful transmission of the uplink retransmission indication by configuring and sending the configuration information.

There are many configurations of the configuration information, and several optional information configurations are provided below.

The configuration information includes the timing duration of the first timer and the time offset for starting the second timer after the first timer times out;

or

The configuration information includes at least two timing durations of the first timer;

or

The configuration information includes a first time interval for starting the second timer after the first timer expires.

The above-mentioned three kinds of configuration information are composed of different information, control the start and timing of the first timer and the second timer of the UE, and monitor the PDCCH, which is easy to implement.

Specifically, the sending unit 220 is further configured to, when the configuration information includes at least two timing durations of the first timer, send a first indication for instructing to select the timing duration of the first timer information; or when the configuration information includes a first time interval for starting the second timer after the first timer expires, sending second indication information for indicating selection of the first time interval.

Of course, there may be multiple time offsets. At this time, there may be multiple time offsets in the configuration information, and the UE will select a time offset according to the monitoring result of the channel.

There are various structures for the configuration unit 210 to form the configuration information, and an achievable structure is provided below. Specifically, the configuration unit may be configured to, according to the subframe configuration, determine the time interval between the sending time of sending the uplink transmission indication and the reception of the uplink transmission data; determine the processing time required for decoding the uplink data; based on The duration interval and the processing time configure a second time interval between the first start time when the first timer is started to the second start time when the second timer is started; configure according to the second time interval The first timer and the second timer form the configuration information. The subframe configuration here may be a time division multiplexing TDD subframe configuration, or a frequency division multiplexing TDD subframe configuration.

In a word, this embodiment provides a base station that can jointly form a communication system with the UE in the first device embodiment. Using this communication system for communication has the characteristics of high probability of successful retransmission indication transmission and small retransmission delay.

Several specific examples are provided below in conjunction with any of the foregoing embodiments.

Example one:

There are three configuration modes for the base station to configure the UL HARQ RTT Timer for each retransmission process of the UE. Mode 1: configure a HARQ RTT timer-ul for a HARQ process, the timer includes two parts, a fixed part HARQ RTTtimer-ulc, and a time offset offset. If the HARQ RTT timer-ul times out, start the DRX-RetransmissionTimer-ul. The DRX-RetransmissionTimer-ul here is the aforementioned second timer. Here, the UL HARQ RTT Timer-ulc can be regarded as the aforementioned first timer. Of course, in specific implementation, the HARQ RTT timer-ul may also be regarded as the first timer as a whole.

The HARQ RTT timer-ulc is defined as: when the UE receives a PDCCH indicating uplink transmission, it starts the HARQRTT Timer-ulc, and the first timer counts until it times out. Offset starts from the stop time of HARQ RTT Timer-ulc,

The time offset can be either offset1 or offset2. Which offset (offset1 or offset2) the UE uses depends on the channel monitoring result.

When the UE completes uplink transmission at the specified time (that is, when the channel monitoring result is idle), offset1 is used, that is, the length of HARQ RTT timer-ul is equal to HARQ RTT timer-ulc+offset1; when the UE fails to complete the uplink at the specified time For transmission (that is, when the channel monitoring result is busy), offset2 is used, that is, the length of HARQ RTT timer-ul is equal to HARQ RTT timer-ulc+offset2. The offset1 here may be the second offset, and the offset2 may be the first offset.

Offset 2 is shorter than offset 1, because the base station does not receive uplink data from the UE, so there is no need to decode the uplink data, that is, there is no processing delay at the base station side. Usually, if the base station needs to decode the uplink data, it may take 3ms.

The method for processing the delay without the base station side may be: the base station detects that the energy is lower than a certain threshold through energy detection, and considers that the UE fails to send uplink data on the indicated uplink resources. At this time, the base station does not need to perform the decoding operation of the data block, thereby reducing the processing delay.

It is worth noting that, in the timing process of the HARQ RTT timer-ul in this example, the UE may be in an active period or a silent period.

Mode 2: configure a fixed HARQ RTT timer-ul for a certain HARQ process, and the setting of the HARQ RTT timer-ul may refer to the existing protocol standard. The HARQ RTT timer-ul here is equivalent to the first timer in the foregoing embodiment.

The HARQ RTT timer-ul can be configured as one of the following two values, and the timer expires to start the DRX-RetransmissionTimer-ul: DRX-RetransmissionTimer-ul is the aforementioned second timer.

The time length of HARQ RTT timer-ul is equal to HARQ RTT timer-ul-1: and the time length of the HARQ RTT timer-ul-1 may be equal to HARQ RTT timer-ulc+offset1.

The time length of HARQ RTT timer-ul is equal to HARQ RTT timer-ul-2: and the time length of the HARQ RTT timer-ul-2 is equal to HARQ RTT timer-ulc+offset2.

If the duration of the HARQ RTT timer-ul-1 can be the first timing duration in the foregoing embodiment, the duration of the HARQ RTT timer-ul-2 is the second timing duration. If the duration of the HARQ RTT timer-ul-2 is the first timing duration, the duration of the HARQ RTT timer-ul-1 is the second timing duration.

Mode 3: The length of the HARQ RTT timer-ul is equal to the HARQ RTT timer-ulc in the first method. If the HARQ RTT timer-ulcr is used, the DRX-RetransmissionTimer-ul can be started immediately after the HARQ RTT timer-ulc times out, or the DRX-RetransmissionTimer-ul can be started from the first downlink subframe.

When the UE receives a PDCCH information carrying an uplink transmission indication, it starts the HARQ RTT Timer-ul.

If the base station uses Mode 1 to set HARQ RTT Timer-ul for the UE, then this step starts the HARQ RTT Timer-ulc; according to the channel monitoring result, the UE determines which offset to use. If the channel monitoring result is idle, use offset1; if the channel monitoring result is busy, use offset2.

If the base station uses the second method to set the HARQ RTT Timer-ul for the UE, the HARQ RTT Timer-ul is a fixed value. Its value is HARQ RTT Timer-ul-1 or HARQ RTT Timer-ul-2. Specifically, whether to use HARQ RTT Timer-ul-1 or HARQ RTT Timer-ul-2 may be determined according to the first indication information sent by the base station.

If the base station uses the third mode to set the HARQ RTT Timer-ul for the UE, the HARQ RTT Timer-ul is a fixed value, and its value may be the RTT Timer-ulc in the first mode.

The HARQ RTT Timer-ul times out to start the DRX-RetransmissionTimer-ul, and monitor the PDCCH channel during the timing period of the DRX-RetransmissionTimer-ul.

If the base station uses Mode 3 to set the HARQ RTT Timer-ul for the UE, it can make the UE start the DRX-RetransmissionTimer-ul immediately after the HARQ RTT Timer-ul times out, or it can make the UE start the DRX-RetransmissionTimer from the beginning of the first downlink subframe -ul.

When the PDCCH detects a message or the DRX-RetransmissionTimer-ul times out, stop the DRX-RetransmissionTimer-ul.

Example two:

The configuration information is formed by using the foregoing method 1 below.

FIG. 9 shows the subframe configurations formed by the base station LAA eNB using offset1 and offset2 respectively.

As shown in Figure 9, the UE receives the uplink grant information UL Grant in subframe 8, starts the HARQ RTT Timer-ulc (here, the timing of the HARQ RTT Timer-ulc is equal to 5ms), and prepares to send uplink data in uplink subframe 2 ULData. The UE needs to monitor the channel before sending UL Data. If the channel monitoring result is idle, it means that the UE can send UL Data on the specified resource, so the UE uses offset1 (offset1 here is equal to 3ms); if the channel monitoring result is busy, it means that the UE cannot send UL data on the specified resource. Data, so the UE adopts offset2 (offset2 here is equal to 0ms). The uplink grant information here may be transmission resource information that informs the UE of uplink data. This resource information may include time information and frequency band information of the transmission resource.

Usually, the time of 1 subframe is 1ms. Obviously, it can be seen from the upper figure of Figure 9 that after the HARQ RTT Timer-ulc timing ends, the DRX-RetransmissionTimer-ul starts after an offset of 3ms, and in the lower figure of Figure 9, HARQ-RetransmissionTimer-ul starts After the RTTTimer-ulc timer expires, the DRX-RetransmissionTimer-ul starts immediately.

Example three:

For the configuration of HARQ RTT timer-ul-1 and HARQ RTT timer-ul-2, reference may be made to the existing protocol TS36.213. The following table 1 is a configuration table of a TDD radio frame. The table shows seven configuration modes of subframes in the radio frame, and the seven configuration modes are numbered from 0 to 6 in sequence. In the table, D represents a downlink subframe; S represents a special subframe; U represents an uplink subframe.

Table 1

For the 6 subframe configuration of the TDD uplink UL/downlink DL radio frame, if the UE receives a UL grant or a Physical Hybrid automatic requestIndicator Channel PHICH in subframe n, then The UE will send the corresponding PUSCH in subframe n+k. The value of k is shown in Table 2.

Table 2

As shown in FIG. 10 , taking subframe configuration mode 1 as an example, the configuration of HARQ RTT timer-ul-1 is performed to form configuration information.

The uplink UL grant information is received in subframe 6, and it can be seen from Table 2 that k is equal to 6, then the uplink UL data will be sent after an interval of 5 subframes. After the uplink data is sent, the base station needs to perform operations such as decoding the uplink data, usually Decoding takes about 3ms, which is equivalent to 3 subframes, so in this example, the HARQ RTT timer-ul-1 is set to 10ms.

After receiving the uplink grant information in subframe 9, it can be seen from the lookup table 2 that k is 4, and the uplink data is sent after an interval of 3 subframes. After the uplink data is sent, the base station needs to perform operations such as decoding the uplink data, which usually takes 3ms to decode. It is equivalent to 3 subframes, and the base station needs to send the next uplink grant information on the downlink subframe, so in this example, the HARQ RTT timer-ul-1 is set to 10ms.

When the uplink grant information is received in subframe 1, and k is equal to 6 by looking up table 2, the uplink data will be sent after an interval of 5 subframes. After the uplink data is sent, the base station needs to perform operations such as decoding the uplink data. Usually, decoding requires About 3ms, which is equivalent to 3 subframes, so in this example, the HARQ RTT timer-ul-1 is set to 10ms.

When the uplink grant information is received in subframe 4, and k is equal to 4 by looking up table 2, the uplink data will be sent after an interval of 3 subframes. After the uplink data is sent, the base station needs to perform operations such as decoding the uplink data. Usually, decoding requires About 3ms, which is equivalent to 3 subframes, so in this example, the HARQ RTT timer-ul-1 is set to 10ms.

As shown in FIG. 11 , the following takes subframe configuration mode 1 as an example to perform configuration of HARQ RTT timer-ul-2 to form configuration information.

When the uplink grant information is received in subframe 6, it can be seen from the lookup table 2 that k is equal to 6, there is no channel available for sending uplink data, and the base station does not need to perform operations such as decoding the uplink data. Therefore, in this example, the HARQ RTT timer-ul-2 is set to 8ms.

The uplink grant information is received in subframe 9, and it can be seen from the lookup table 2 that k is 4, there is no channel for sending uplink data, and the base station does not need to perform operations such as decoding the uplink data. Therefore, in this example, the HARQ RTT timer-ul-2 is set to 5ms.

When the uplink grant information is received in subframe 1, it can be seen from table 2 that k is equal to 6, there is no channel for sending uplink data, and the base station does not need to perform operations such as decoding uplink data. Therefore, in this example, the HARQ RTT timer-ul-2 is set to 8ms.

When the uplink grant information is received in subframe 4, it can be seen from table 2 that k is equal to 4, no uplink data is sent, and the base station does not need to perform operations such as decoding uplink data. Therefore, in this example, HARQ RTT timer-ul-2 is set to 5ms.

Example three:

As shown in FIG. 12 , taking subframe configuration mode 2 as an example, HARQ RTT timer-ul-1 is configured to form configuration information.

If the UL grant information is received in subframe 8, it can be seen from Table 2 that k is equal to 4, and the uplink UL data is sent at an interval of 3 subframes. It may take 3 subframes for the base station to decode the uplink data, so the HARQ RTT timer-ul-1 Set to 8ms, then start DRX-RetransmissionTimer-ul directly.

If the subframe 3 receives the grant information, it can be seen from Table 2 that k is equal to 4, and the uplink UL data is sent at an interval of 3 subframes. It may take 3 subframes for the base station to decode the uplink data, so the HARQ RTT timer-ul-1 is set For 8ms, then start DRX-RetransmissionTimer-ul directly.

As shown in FIG. 13 , taking subframe configuration mode 2 as an example, HARQ RTT timer-ul-2 is configured to form configuration information.

The UL grant information is received in subframe 8, and it can be seen from Table 2 that k is equal to 4, and there are no channels for sending uplink data in the middle interval of 3. The base station does not need to perform operations such as decoding the uplink data, so the HARQ RTT timer-ul-1 is set to 5ms, then start DRX-RetransmissionTimer-ul directly.

Subframe 3 receives the grant information, and it can be seen from Table 2 that k is equal to 4, and there is no channel for sending uplink data in 3 subframes in the middle. The base station does not need to perform operations such as decoding uplink data, so HARQ RTT timer-ul-1 is set 5ms, then start DRX-RetransmissionTimer-ul directly.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical or other forms. of.

The unit described above as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may all be integrated into one processing module, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integration The unit can be implemented either in the form of hardware or in the form of hardware plus software functional units.

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 Including the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk and other various A medium on which program code can be stored.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. An information processing method, characterized in that the method comprises:

starting a first timer when receiving an uplink transmission instruction;

starting a second timer after the first timer is overtime;

monitoring a physical downlink transmission control channel (PDCCH) within the timing time of the second timer;

the method further comprises any one of:

user equipment monitors a Physical Uplink Shared Channel (PUSCH) to form a monitoring result; determining a time offset based on the monitoring result; after the first timer is overtime, starting a second timer, comprising: when the first timer is overtime and reaches the time offset, starting the second timer; wherein the determining a time offset based on the listening result comprises: if the monitoring result indicates that the PUSCH is busy, determining that the time offset is equal to a first offset; if the monitoring result shows that the PUSCH is idle, determining that the time offset is equal to a second offset; the second offset is greater than the first offset;

or

Receiving first indication information; determining a timing length of the first timer based on the first indication information; the timing duration of the first timer comprises a first timing duration and a second timing duration; wherein the first timing duration is not equal to the second timing duration; the determining the timing length of the first timer based on the indication information includes: based on the first indication information, adopting the first timing duration or the second timing duration as the timing duration of the first timer;

or

Receiving second indication information; determining a first time interval to start the second timer based on the second indication information; after the first timer is overtime, starting a second timer, comprising: after the first timer is overtime and the overtime duration is equal to the first time interval, starting the second timer; wherein, after the first timer is overtime and the overtime duration is equal to the first time interval, starting the second timer comprises: when the first timer is overtime, the second timer is started immediately; or, after the first timer is overtime, starting the second timer after N subframes are spaced; wherein N is an integer not less than 1.

2. The method of claim 1,

the starting time of the first timer is a first starting time;

the starting time of the second timer is a second starting time;

the time interval between the first starting time and the second starting time is a second time interval;

the second time interval is determined according to a time period required from the sending of the uplink transmission indication to the completion of the uplink data transmission and a time required for decoding the uplink data.

3. The method of claim 1,

the method further comprises the following steps:

and monitoring the information of the PDCCH within the timing time of the second timer or stopping timing when the second timer is overtime.

4. The method of claim 1,

the PDCCH can be used for bearing an uplink retransmission indication.

5. An information processing method characterized by comprising, in a first step,

the method comprises the following steps:

configuring a first timer and a second timer to form configuration information; the configuration information is used for controlling user equipment to respectively start a first timer and a second timer after receiving an uplink transmission instruction;

sending the configuration information to user equipment;

the configuration information includes any one of the following;

the configuration information comprises the timing duration of the first timer and the time offset of starting the second timer after the first timer is overtime;

or

The configuration information comprises at least two timing durations of the first timer;

or

The configuration information includes a first time interval for starting the second timer after the first timer expires.

6. The method of claim 5,

the method further comprises the following steps:

when the configuration information comprises at least two timing durations of the first timer, sending first indication information for indicating selection of the timing duration of the first timer;

or

And when the configuration information comprises a first time interval of starting the second timer after the first timer is overtime, sending second indication information for indicating the selection of the first time interval.

7. The method of claim 5,

the configuring the first timer and the second timer to form configuration information includes:

according to the subframe configuration, determining a time interval between the sending time of the uplink transmission indication and the receiving of uplink transmission data;

determining a processing time required for decoding the uplink transmission data;

configuring a second time interval between a first starting time of starting the first timer and a second starting time of starting a second timer based on the time interval and the processing time;

configuring the first timer and the second timer according to the second time interval and forming the configuration information.

8. A user equipment, the user equipment comprising:

the first timing unit is used for starting a first timer when receiving the uplink transmission instruction;

the second timing unit is used for starting a second timer after the first timer is overtime;

a monitoring unit, configured to monitor a physical downlink transmission control channel PDCCH within the time counted by the second timer;

the user equipment further comprises any one of:

the monitoring unit is also used for monitoring a Physical Uplink Shared Channel (PUSCH) to form a monitoring result; a first determining unit, configured to determine a time offset based on the monitoring result; the second timing unit is used for starting the second timer when the first timer is overtime and reaches the time offset when the first timer is overtime; the first determining unit is specifically configured to determine that the time offset is equal to a first offset if the monitoring result indicates that the PUSCH is busy; if the monitoring result shows that the PUSCH is idle, determining that the time offset is equal to a second offset; the second offset is greater than the first offset;

or

A first receiving unit, configured to receive first indication information; a second determination unit, configured to determine a timing duration of the first timer based on the first indication information; the timing duration of the first timer comprises a first timing duration and a second timing duration; wherein the first timing duration is not equal to the second timing duration;

the second determining unit is specifically configured to adopt the first timing duration or the second timing duration as a timing duration of the first timer based on the first indication information;

or

A second receiving unit for receiving second indication information; a third determining unit, configured to determine a first time interval for starting the second timer based on the second indication information; the second timing unit is specifically configured to start the second timer after the first timer is overtime and an overtime duration is equal to the first time interval; the second timing unit is specifically configured to start the second timer immediately after the first timer expires; or after the first timer is overtime, starting the second timer after N subframes are spaced; wherein N is an integer not less than 1.

9. A base station, characterized in that,

the base station includes:

the configuration unit is used for configuring the first timer and the second timer to form configuration information; the configuration information is used for controlling user equipment to respectively start a first timer and a second timer after receiving an uplink transmission instruction;

a sending unit, configured to send the configuration information to a user equipment;

the configuration information includes any one of the following;

the configuration information comprises the timing duration of the first timer and the time offset of starting the second timer after the first timer is overtime;

or

The configuration information comprises at least two timing durations of the first timer;

or

The configuration information includes a first time interval for starting the second timer after the first timer expires.

10. The base station of claim 9,

the sending unit is further configured to send, when the configuration information includes at least two timing durations of the first timer, first indication information for indicating selection of the timing duration of the first timer; or when the configuration information comprises a first time interval of starting the second timer after the first timer is overtime, sending second indication information for indicating the selection of the first time interval.

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