CN106533633B

CN106533633B - Information processing method, user equipment and base station

Info

Publication number: CN106533633B
Application number: CN201510573946.1A
Authority: CN
Inventors: 李娜; 陈卓; 刘光毅
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2015-09-10
Filing date: 2015-09-10
Publication date: 2020-08-04
Anticipated expiration: 2035-09-10
Also published as: CN106533633A

Abstract

The embodiment of the invention discloses an information processing method, user equipment and a base station, wherein the method comprises the following steps: starting a first timer when receiving an uplink transmission instruction; starting a second timer after the first timer is overtime; and monitoring a physical downlink transmission control channel (PDCCH) within the timing time of the second timer.

Description

Information processing method, user equipment and base station

Technical Field

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

Background

Data transmission is typically bursty, with data transmission during a period of time, but not during the next longer period of time. When there is no data transmission, the ue may reduce power consumption by stopping monitoring and detecting a Physical Downlink Control Channel (PDCCH), so as to extend the standby time, and thus a Discontinuous Reception (DRX) transmission mechanism is proposed.

The basic mechanism of DRX is to configure one DRX cycle for a User Equipment (UE) in a radio resource connected state. As shown in fig. 1, the DRX cycle consists of an active period and a silent period: in the activation 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 way, if the base station sends the PDCCH to the ue in the quiet period of the ue, the ue cannot receive the PDCCH, which may cause transmission abnormality.

With the development of communication technology, authorized-Assisted Access (L authenticated-Assisted Access, L AA) is introduced to rely on a carrier aggregation technology, an unlicensed frequency band is aggregated to a long Term Evolution (L ong Term Evolution, L TE) authorized frequency band to ensure a higher data rate, the unlicensed frequency band is influenced by first interception and then transmission (L actual Talk, L BT) in L AA, and an asynchronous Hybrid Automatic Repeat Request (HARQ) mode rather than a asynchronous HARQ mode is adopted in uplink.

By adopting asynchronous HARQ, the base station will asynchronously send the uplink retransmission indication through the PDCCH after decoding the uplink data error, and at this time, the user equipment may be in a silent period without monitoring the PDCCH, and the UE does not know when to switch to an active period to monitor the PDCCH, so that the uplink retransmission indication cannot be correctly received, and the problems of transmission failure, large retransmission delay, incapability of retransmission and the like of the uplink retransmission indication are caused.

Disclosure of Invention

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

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a first aspect of an embodiment of the present invention provides an information processing method, where the method includes:

starting a first timer when receiving an uplink transmission instruction;

starting a second timer after the first timer is overtime;

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

Based on the scheme, the method comprises the following steps:

the method comprises the steps that User Equipment (UE) shares a monitoring channel PUSCH in a physical uplink mode 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:

and starting the second timer when the first timer is overtime and reaches the time offset when the first timer is overtime.

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

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.

Based on the above scheme, the method further comprises:

receiving first indication information;

determining a timing length of the first timer based on the first indication information.

Based on the scheme, 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:

and based on the first indication information, adopting the first timing duration or the second timing duration as the timing duration of the first timer.

Based on the above scheme, the method further comprises:

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:

and starting the second timer after the first timer is overtime and the overtime duration is equal to the first time interval.

Based on the above scheme, the starting the second timer after the first timer expires and the timeout duration equals to the first time interval includes:

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.

Based on the scheme, 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.

Based on the above scheme, the method further comprises:

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

Based on the above scheme, 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, where the method includes:

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;

and sending the configuration information to the user equipment.

Based on the above scheme, 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.

Based on the above scheme, the method further comprises:

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.

Based on the above scheme, 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 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.

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

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;

and the monitoring unit is used for monitoring the physical downlink transmission control channel PDCCH within the timing time of the second timer.

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

the user equipment further comprises:

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

and the second timing unit is used for starting the second timer when the first timer is overtime and reaches the time offset after the overtime.

Based on the foregoing solution, 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 channel is busy; if the monitoring result shows that the channel is idle, determining that the time offset is equal to a second offset; the second offset is greater than the first offset.

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

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

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

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.

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

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 expires and an timeout duration is equal to the first time interval.

Based on the above scheme, 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.

A fourth aspect of the present invention provides a base station, including:

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;

and the sending unit is used for sending the configuration information to the user equipment.

or

Based on the above scheme, 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.

In the information processing method, the user equipment and the base station according to the embodiments of the present invention, a first timer and a second timer are started in the UE, the first timer starts timing when receiving the uplink transmission indication, the second timer starts timing after the first timer expires, and the UE monitors the PDCCH within the timing time of the second timer, so that information carried on the PDCCH, for example, information such as an uplink retransmission indication caused by a failure in responding to the uplink transmission indication, can be detected, so that the UE can monitor the uplink retransmission indication, thereby reducing a transmission failure rate of the uplink transmission indication information.

Drawings

FIG. 1 is a diagram illustrating a DRX cycle;

fig. 2 is a schematic flowchart of a first information processing method according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a second information processing method according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating an effect of a quiet period and an active period of a UE according to an embodiment of the present invention;

FIG. 5 is a flowchart illustrating a third information processing method according to an embodiment of the present invention;

FIG. 6 is a flowchart illustrating a process 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 configuration diagrams of a first timer performed based on the information processing method according to the embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.

The first embodiment of the method comprises the following steps:

as shown in fig. 2, the present embodiment provides an information processing method, including:

step S110: starting a first timer when receiving an uplink transmission instruction;

step S120: starting a second timer after the first timer is overtime;

step S130: and monitoring a physical downlink transmission control channel (PDCCH) within the timing time of the second timer.

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

In step S110, after receiving the uplink transmission indication, a first timer is started, where the first timer may be an uplink hybrid automatic repeat request timer U L HARQ RTT timer.

In step S120, after the first timer expires, a second timer is started, where the second timer may be an uplink DRX retransmission timer U L DRX retransmission timer.

In step S130, the UE monitors the PDCCH within the time counted by the second timer, and in this case, if the base station has an uplink retransmission instruction, the uplink retransmission instruction may be carried in the PDCCH and sent to the UE, so that the UE can monitor and detect the uplink retransmission instruction, know that an uplink retransmission needs to be performed, and execute an uplink data retransmission.

It is obvious that the information processing method of this embodiment can solve the problem of the transmission failure of the uplink retransmission indication well, thereby improving the response rate of retransmission.

There are various implementations of the steps S110 to S120, and the following three implementations are provided in the present embodiment:

the first method is as follows:

as shown in fig. 3 and 4, the method includes:

step S101: the user equipment monitors a Physical Uplink Shared Channel (PUSCH) to form a monitoring result;

step S102: determining a time offset based on the monitoring result;

the step S120 includes:

In this embodiment, 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. Generally, the listening result may be used to determine the time offset in this embodiment, and may also be used to determine whether to transmit uplink data in response to the uplink transmission indication. The time offset corresponds to a time length, and the second timer is started after the first timer is timed out and the timeout time is as long as the time offset in step S120.

As shown in fig. 4, in the waveform shown in fig. 4, a peak indicates that the UE is in an active period in which the UE will monitor the PDCCH, and in a silent period in which the UE will be in the silent period in which the UE will not monitor the PDCCH. In this embodiment, after receiving the uplink transmission indication, the UE sends uplink data in response to the uplink transmission indication, and then sends an uplink retransmission indication on the PDCCH if the base station decoding 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 obvious that the uplink retransmission indication may not be received. In fig. 4, because the first timer and the second timer are respectively started, and the PDCCH is monitored during the time counted by the second timer, which is equivalent to increasing the activation period of the UE, the UE will continue to monitor the PDCCH during the newly increased activation period, so that the probability that the UE monitors the uplink retransmission indication sent by the base station is increased. In fig. 4, the first transmission indication received by the UE from the base station is one of the uplink transmission indications. As can be seen from a comparison between fig. 1 and fig. 4, 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 embodiment, the step S102 may include:

the second offset is greater than the first offset.

And the PUSCH busy state indicates that the current PUSCH is occupied by other UE (user equipment) and no resource for the UE to send uplink data exists. In this way, the base station does not receive the uplink data, and at this time, the base station does not need to decode the uplink data and then instruct the UE to retransmit the uplink data, but may directly instruct the UE to retransmit the uplink data when the specified transmission resource does not receive the uplink data, so that the time for the base station to transmit the uplink retransmission instruction may be earlier than the time for transmitting the retransmission instruction due to the failure of decoding when the uplink data is received. Therefore, based on this phenomenon analysis, in this embodiment, if the PUSCH is busy, the time offset is set as a first offset, and if the PUSCH is idle, the time offset is a second offset. The first offset is less than the second offset.

The first offset is smaller than the second offset, which means that when the first offset is adopted, the second timer is started earlier, and the UE starts monitoring the PDCCH earlier.

Obviously, through the analysis, two offsets with different offset durations are designed, so that the two offsets can be well matched with the communication scene of wireless communication, the power consumption of the UE is saved as much as possible, and the probability of receiving failure of the uplink retransmission indication is reduced.

The second method comprises the following steps:

the method further comprises the following steps:

receiving first indication information;

In this embodiment, the timing duration of the first timer may be dynamically determined. In this embodiment, the UE further receives the first indication information from the base station, and determines a timing duration of the first timer according to the first indication information. In this embodiment, the first indication information may be directly the timing duration of the first timer, or may include index information for confirming the timing duration of the first timer, and the like. For example, the timing duration of the first timer includes N, where N is stored in the base station and the UE, and each of the N is provided with a corresponding index, and the index may be included in the first indication information, so that after the UE receives the first indication information, the UE may determine the timing duration of the first timer through querying.

The first indication information may be determined by the base station according to its current load and/or a transmission delay requirement of corresponding uplink data. The current base station feels that the load of the current base station is heavier, the requirement on the transmission time ductility of the current service needing to be retransmitted is lower, the base station does not want to further increase the load, the base station delays to send the downlink retransmission indication, and a longer timing time can be set for the first timer through the first indication information.

Specifically, 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 length of the first timer based on the indication information includes: and based on the first indication information, adopting the first timing duration or the second timing duration as the timing duration of the first timer.

The first timing duration and the second timing duration may be pre-stored in both the base station and the UE, and the UE determines whether to use the first timing duration or the second timing duration to perform timing of the first timer according to the first indication information. In this embodiment, the first timer is normally started immediately upon expiration of the second timer.

In this way, the UE dynamically sets the timing long code of the first timer according to the first indication information sent by the base station, so that transmission requirements under different wireless transmission scenarios can be met, and the method has the characteristic of simple and convenient implementation.

The third method comprises the following steps:

the method further comprises the following steps:

receiving second indication information;

the step S120 includes:

In this embodiment, the UE receives second indication information from the base station, where the time interval between the end of the first timer indicated by the indication information and the start of the second timer is the first time interval. The duration of this first time interval may be from 0 to any duration, and in this embodiment may generally include one or more subframes. In this embodiment, the timing duration of the first timer is usually set statically, but the first time interval is changed dynamically, so that the starting time of the second timer can be dynamically adjusted to meet the requirement of the current transmission scenario.

Specifically, if the first timer expires and the timeout duration is equal to the first time interval, the starting the second timer includes: 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. The N can be 1, 2, 3 and the like.

In this embodiment, the second indication information may also be determined by the base station based on a load of the base station and/or a transmission delay requirement of corresponding uplink data, when the transmission delay requirement of the uplink data is high, the base station may send the uplink retransmission instruction as soon as possible, and in order to ensure that the UE successfully receives the uplink retransmission instruction at this time, the second timer may be controlled to start within a very small time interval after the first timer expires, so as to monitor the PDCCH, thereby conveniently completing uplink data retransmission as soon as possible.

In this embodiment, 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.

In a second time interval between the first starting time and the second starting time, the UE may need to send uplink data to the base station, and the base station needs to decode the uplink data, determine whether an uplink retransmission instruction needs to be sent according to a decoding result, and send the uplink transmission instruction when the uplink retransmission instruction needs to be sent. Therefore, in the present embodiment, at least one of the timing length of the first timer, the timing length of the second timer, the time offset and the first time interval is set, and the second time interval is estimated.

The method further comprises the following steps:

In this embodiment, if the UE does not monitor the PDCCH for information transmission within the time counted by the second timer, the second timer will keep counting time until the time is out, and the counting is stopped, which indicates that there is a high probability that the uplink data transmission is successful and there is no need to perform uplink data retransmission. If the information on the PDCCH is monitored, if uplink retransmission is necessary, the uplink retransmission information is carried in the information carried by the PDCCH, and if uplink retransmission is not necessary, the UE does not need to keep an active period for PDCCH monitoring in the original silent period any more, so the second timer stops timing, and the UE stops monitoring the PDCCH, thereby saving the power consumption of the UE as much as possible and prolonging 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, where the configuration information may be pre-stored in the UE based on a communication protocol, or may be received by the UE from information sent by a base station in advance. Specifically, for example, the configuration information is carried in a 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 to the UE by the base station through a dedicated signaling, or may be carried in the same message with the uplink transmission indication information and transmitted to the UE, so that the UE receives the first indication information or the second indication information while receiving the uplink transmission indication, which is convenient for the UE to start the first timer and the second timer.

The second method embodiment:

as shown in fig. 5, the present embodiment provides an information processing method, including:

step S210: 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;

step S220: and sending 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. The base station is configured to form said configuration information, e.g. based on a communication protocol or based on an indication of an upper network element.

In step S220, the configuration information is sent to the UE, so that the user can conveniently 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 described in this embodiment may be broadcasted to all UEs through a system message or a radio link connection RRC message sent by the base station, or may be sent by the base station to the UE that needs to perform uplink data transmission.

The configuration information is formed in a variety of ways, at least three alternatives are provided below:

the first alternative is as follows:

the configuration information includes a timing duration of the first timer and a time offset for starting the second timer after the first timer is overtime. In a specific implementation process, the time offset may include a first offset and a second offset, and the UE selects the prime number first offset or the second offset according to a monitoring result of the channel. Selecting the first offset if the monitoring result indicates that the PUSCH is busy; and if the monitoring result shows that the PUSCH is idle, selecting a second offset.

The second method comprises the following steps:

the configuration information includes at least two timing durations of the first timer. The timing duration of the first timer is at least two.

The third method comprises the following steps:

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: and sending first indication information for indicating the selection of the timing duration of the first timer. The first indication information indicates 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: and sending second indication information for indicating the selection of the first time interval. The second indication information is used for indicating the interval duration of the first time interval started by the second timer after the first timer is overtime.

Here, the first indication information and/or the second indication information may be determined by the base station according to parameters such as a load condition of the base station and/or a transmission delay requirement of uplink data. Therefore, the starting time of the second timer can be dynamically controlled, namely, the UE is controlled to be switched to the activation period to monitor the PDCCH, and meanwhile, the data transmission quality requirement and the information such as the load condition of the base station and the like can be well considered, so that the relationship among the three is well balanced.

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

step S111: 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;

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

step S113: 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;

step S114: configuring the first timer and the second timer according to the second time interval and forming the configuration information.

In this embodiment, the base station may dynamically determine, according to the subframe configuration, a resource time position indicating that the UE sends the uplink data, and predict a processing time for the base station to decode the uplink data, thereby determining a second time interval from a first start time of the first timer to a second start time of the second timer, and then configure the first timer and the second timer, which may greatly improve a probability that the UE receives an uplink retransmission indication sent by the base station.

Of course, if the configuration information is formed by the base station, the base station may finally determine that the UE is in an activation period for monitoring the PDCCH according to the configuration information, and send the uplink retransmission instruction at an activator of the UE, which obviously reduces a phenomenon that the UE cannot receive the uplink retransmission instruction because the UE is in a silent period and does not monitor the PDCCH.

The first embodiment of the device:

as shown in fig. 7, the present embodiment provides a UE, where the UE includes:

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

a second timing unit 120, configured to start a second timer after the first timer expires;

a monitoring unit 130, configured to monitor a physical downlink transmission control channel PDCCH within the time counted by the second timer.

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

The monitoring unit 130 monitors the PDCCH during the second timer so as to be able to monitor the uplink retransmission indication sent by the base station. The specific structure of the listening unit 130 can be referred to the structure of the UE listening to the channel in the prior art, and is not repeated here.

The UE described in this embodiment can greatly increase the probability of monitoring the uplink retransmission indication transmitted by the base station through the start of the first timer and the second timer and the setting of the first timing unit 110 and the second timing unit 120.

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

an optional structure one:

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

the UE further comprises:

The first determination unit may comprise a processor or a processing circuit or the like. The processor may include a central processing unit, digital signal processor, programmable array, application processor or microprocessor, or the like. The processing circuit may comprise an application specific integrated circuit. Also included within the UE is a storage medium that stores executable code, which may be read and executed by the processor or processing circuitry to enable the determination of the time offset.

Specifically, 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.

In this embodiment, the first offset and the second offset are set in advance, and the second determining unit is mainly configured to select the first offset or the second offset according to the monitoring result in this embodiment.

Optional structure two:

the UE further comprises:

a first receiving unit, configured to receive 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.

The physical structure of the second determining unit can refer to the first determining unit, but in this embodiment, the second determining unit is used for determining 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 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.

In this embodiment, the timing duration of the first timer is dynamically selected according to the first indication information, so that the start time of the second timer is dynamically selected, and the time when the UE monitors the PDCCH is dynamically selected. The first indication information comes from the base station, so that the probability of monitoring the uplink retransmission indication carried on the PDCCH can be greatly increased.

Optional structure three:

the UE further comprises:

a second receiving unit for receiving second indication information;

the second timing unit 120 is specifically configured to start the second timer after the first timer expires and the timeout 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 exchanging information with the base station.

The physical structure of the third determining unit may be referred to the first determining unit or the second determining unit. However, in this structure, the third determining unit is configured to determine the first time interval based on the second indication information, and thus, the starting time of the second timer is also dynamically determined to meet the communication requirement of the current communication scenario, so as to obtain a greater probability of receiving the uplink retransmission indication.

Specifically, for example, the second timing unit 120 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.

In this embodiment, the first time interval may be 0, that is, once the first timer expires, the second timer is immediately started, and the first time interval may also be the duration of N subframes, because whether uplink transmission or downlink transmission is performed, the time unit may be a subframe, and the N subframes are the first time interval, which can be well matched with a wireless communication scenario, and also has a characteristic that the uplink retransmission indication can be received with a higher probability.

In addition, 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. Therefore, the UE can be ensured to have the silent period as much as possible, so that the power consumption of the terminal is reduced.

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

The second equipment embodiment:

as shown in fig. 8, the present example provides a base station, including:

a configuration unit 210, configured to configure 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;

a sending unit 220, configured to send the configuration information to the user equipment.

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

The configuration unit 210 in this embodiment may include a processor or a processing circuit. The specific structure of the processor or processing circuit can be seen in the first embodiment of the apparatus. The processor or the processing circuitry may implement the formation of the configuration information described above by executing specific instructions.

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

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

The configuration information can be made in a variety of ways, and several alternative information configurations are provided below,

or

The three kinds of configuration information are formed by different information, control the starting and timing of the first timer and the second timer of the UE, monitor the PDCCH and have the characteristic of simple and convenient realization.

Specifically, for example, the sending unit 220 is further configured to send, when the configuration information includes at least two timing durations of the first timer, first indication information for indicating that the timing duration of the first timer is selected; 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.

Of course, there may be more than one time offset, and in this case, there may be more than one time offset information in the configuration information, and the UE will select one time offset according to the listening result to the channel.

There are various structures in which the configuration unit 210 forms the configuration information, and one realizable structure is provided below. Specifically, for example, the configuration unit may be configured to determine, according to subframe configuration, a time interval between sending time of sending the uplink transmission indication and receiving uplink transmission data; determining a processing time required for decoding the uplink 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. The subframe configuration here may be a time division multiplexing TDD subframe configuration, or a frequency division multiplexing TDD subframe configuration.

In summary, the present embodiment provides a communication system formed by a base station and a UE in the first device embodiment, and the communication system is used for communication, and has the characteristics of high probability of successful retransmission indication transmission, small retransmission delay, and the like.

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

Example one:

the method comprises the steps that a base station configures U L HARQ RTT Timer for each retransmission process of UE, and the first mode is that one HARQ RTT Timer-ul is configured for a certain HARQ process, the Timer comprises two parts, one fixed part HARQ RTTtimer-ulc and one time offset, if the HARQ RTT Timer-ul is overtime, the DRX-retransmission Timer-ul. is started, namely the second Timer, the U L HARQ RTT Timer-ulc is regarded as the first Timer, and the HARQ RTT Timer-ul can be regarded as the first Timer in a concrete implementation.

The HARQ RTT timer-ulc is defined as: when the UE receives a PDCCH indicating uplink transmission, starting an HARQ RTT Timer-ulc, and the first Timer is timed until the time is out. Offset starts at the HARQ RTT Timer-ulc stop time,

the amount of time offset can be either offset1 or offset 2. Which offset (offset1 or offset2) the UE uses depends on the channel listening result.

When the UE completes uplink transmission at the designated time (i.e. the channel listening result is idle), use offset1, i.e. the length of HARQ RTT timer-ul is equal to HARQ RTT timer-ulc + offset 1; when the UE fails to complete uplink transmission at the designated time (i.e. the channel listening result is busy), the offset2 is used, i.e. the length of HARQ RTT timer-ul is equal to HARQ RTT timer-ulc + offset 2. Here, the offset1 may be the second offset amount, and the offset2 may be the first offset amount.

offset2 is shorter than offset1, because the base station does not receive uplink data from the UE, it does not need to perform decoding processing on the uplink data, i.e. there is no processing delay at the base station end, and usually the base station may need 3ms if it needs to decode the uplink data.

The method for processing the time delay without the base station end can be as follows: and if the base station monitors that the energy is lower than a certain threshold value through energy detection, the base station considers that the UE cannot send uplink data on the indicated uplink resource. At this time, the base station does not need to perform decoding operation of the data block, thereby reducing the processing delay.

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

The second method comprises the following steps: configuring a fixed HARQ RTT timer-ul for a HARQ process, wherein the setting of the HARQ RTT timer-ul can refer to the existing protocol standard. Here, HARQ RTT timer-ul is equivalent to the first timer in the foregoing embodiment.

The HARQ RTT timer-ul may be configured to one of two values, the timer timeout starts DRX-retransmission timer-ul: DRX-retransmission timer-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 RTTtimer-ul-1 may be equal to HARQ RTT timer-ulc + offset 1.

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

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

The third method comprises the following steps: the length of HARQ RTT timer-ul is equal to HARQ RTT timer-ulc in method one. If the HARQ RTT timer-ulcr is adopted, the DRX-retransmission timer-ul can be started immediately after the HARQ RTT timer-ulc times out, or can be started from the first downlink subframe.

And when the UE receives information of a PDCCH bearing the uplink transmission indication, starting HARQ RTT Timer-ul.

If the base station sets HARQ RTT Timer-ul for the UE in the first using mode, the step starts HARQ RTTTimer-ulc; according to the channel listening result, the UE determines which offset to use. If the channel monitoring result is idle, using offset 1; the channel listening result is busy and offset2 is used.

And if the base station sets HARQ RTT Timer-ul for the UE in the second using mode, the HARQ RTT Timer-ul is a fixed value. The value is HARQ RTT Timer-ul-1 or HARQ RTT Timer-ul-2. Specifically, whether HARQ RTTTimer-ul-1 or HARQ RTT Timer-ul-2 is adopted can be determined according to the first indication information sent by the base station.

If the base station sets HARQ RTT Timer _ ul for the UE in the third usage mode, the HARQ RTT Timer _ ul is a fixed value, which may be RTT Timer _ ulc in the first usage mode.

The HARQ RTT Timer-ul timeout starts DRX-retransmission Timer-ul, during which the PDCCH channel is monitored.

If the base station uses the third mode to set HARQ RTT Timer-ul for the UE, the UE can be enabled to start DRX-retransmission Timer-ul immediately after the HARQ RTT Timer-ul is overtime, and the UE can also be enabled to start DRX-retransmission Timer-ul from the first downlink subframe.

And when the PDCCH monitors the message or the DRX-retransmission timer-ul is overtime, stopping the DRX-retransmission timer-ul.

Example two:

the configuration information is formed using the first method described above.

Fig. 9 shows a subframe configuration formed by a base station L AA eNB using offset1 and offset2, respectively.

As shown in fig. 9, the UE receives the uplink Grant information U L Grant at subframe 8, starts HARQ RTT Timer-ulc (here, the timing duration of HARQ RTT Timer-ulc is equal to 5ms), and prepares to send uplink Data U L Data at uplink subframe 2. the UE needs to monitor the channel before sending U L Data. if the channel monitoring result is idle, it indicates that the UE can send U L Data on the specified resource, so the UE uses offset1 (here, offset1 is equal to 3ms), if the channel monitoring result is busy, it indicates that the UE cannot send U L Data on the specified resource, so the UE uses offset2 (here, offset2 is equal to 0 ms). the uplink Grant information here can be transmission resource information of uplink Data.

Usually, the time of 1 subframe is 1ms, and it is obvious from the upper diagram of fig. 9 that DRX-retransmission Timer-ul starts after 3ms offset after the HARQ RTT Timer-ulc is timed out, while in the lower diagram of fig. 9, the DRX-retransmission Timer-ul starts immediately after the HARQ RTT Timer-ulc is timed out.

Example three:

the configuration of HARQ RTT timer-ul-1 and HARQ RTT timer-ul-2 may refer to the existing protocol TS 36.213. The following table 1 is a configuration table of a TDD radio frame, in which 7 configuration modes of subframes in the radio frame are shown, and the 7 configuration modes are numbered 0 to 6 in sequence. D in the table represents a downlink subframe; s represents a special subframe; u denotes an uplink subframe.

TABLE 1

For the 6-subframe configuration of the TDD uplink U L/downlink D L radio frame, if the UE receives U L grant or physical Hybrid automatic request indicator Channel PHICH (physical Hybrid automatic request indicator Channel) in subframe n, the UE sends the corresponding pusch in subframe n + k, where k is shown in table 2.

TABLE 2

As shown in fig. 10, taking subframe configuration mode 1 as an example, HARQ RTT timer-ul-1 is configured to form configuration information.

Receiving the uplink U L grant information at subframe 6, knowing that k is equal to 6 through the lookup table 2, the base station will send uplink U L data after 5 subframes apart, and after sending the uplink data, the base station needs to perform operations such as decoding the uplink data, and the decoding usually needs about 3ms, which is equivalent to 3 subframes, so in this example, HARQ RTT timer-ul-1 is set to 10 ms.

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

When receiving the uplink grant information in subframe 1, it can be known from the lookup table 2 that k is equal to 6, the base station needs to perform operations such as decoding the uplink data after 5 subframes, and after sending the uplink data, the base station needs to perform operations such as decoding the uplink data, which usually needs about 3ms, which is equivalent to 3 subframes, so in this example, HARQ RTT timer-ul-1 is set to 10 ms.

Receiving the uplink grant information at subframe 4, knowing that k is equal to 4 through the lookup table 2, the base station needs to perform operations such as decoding the uplink data after 3 subframes, and after the uplink data is sent, the base station needs to perform operations such as decoding the uplink data, which usually needs about 3ms, which is equivalent to 3 subframes, so in this example, HARQ RTT timer-ul-1 is set to 10 ms.

As shown in fig. 11, the configuration of HARQ RTT timer-ul-2 is performed to form configuration information, taking subframe configuration mode 1 as an example.

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

When the uplink grant information is received in the subframe 9, it can be known 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 uplink data decoding, so the HARQ RTT timer-ul-2 is set to 5ms in this example.

When receiving the uplink grant information in subframe 1, it can be known from the lookup 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 uplink data decoding, so HARQ RTT timer-ul-2 is set to 8ms in this example.

Receiving the uplink grant information in subframe 4, it can be known from the lookup 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 uplink data decoding, so HARQ RTT timer-ul-2 is set to 5ms in this example.

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 subframe 8 receives the U L grant message, it can be known that k is equal to 4 by looking up a table 2, the middle interval is 3 subframes to send uplink U L data, and the base station may need to pass the time of 3 subframes to decode the uplink data, so the HARQ RTT timer-ul-1 is set to 8ms, and then the DRX-retransmission timer-ul is directly started.

If the subframe 3 receives the grant information, it can be known that k is equal to 4 by looking up a table 2, the uplink U L data is sent by 3 subframes in the middle interval, and the base station may need to pass the time of 3 subframes for decoding the uplink data, so the HARQ RTT timer-ul-1 is set to 8ms, and then the DRX-retransmission timer-ul is directly started.

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

Subframe 8 receives the grant information of U L, and it can be known that k is equal to 4 by looking up table 2, there are no channels for sending uplink data in 3 middle intervals, and the base station does not need to perform operations such as uplink data decoding, so HARQ RTT timer-ul-1 is set to 5ms, and then DRX-retransmission timer-ul is directly started.

Subframe 3 receives the grant information, and by looking up table 2, it can be known that k is equal to 4, and 3 subframes in the middle interval have no channel for sending uplink data, and the base station does not need to perform operations such as uplink data decoding, so HARQ RTT timer-ul-1 is set to 5ms, and then DRX-retransmission timer-ul is directly started.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

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;

3. The method of claim 1,

the method further comprises the following steps:

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:

sending the configuration information to user equipment;

the configuration information includes any one of the following;

or

6. The method of claim 5,

the method further comprises the following steps:

or

7. The method of claim 5,

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

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

8. A user equipment, the user equipment comprising:

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:

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

the configuration information includes any one of the following;

or

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.