TW201813434A - Methods and apparatus for data transmission - Google Patents

Abstract

Methods and apparatuses for data transmission are provided. The method for data transmission is used in a Narrow Band-Internet of Things (NB-IoT) apparatus and comprising: transmitting uplink data to a network apparatus via an uplink channel; monitoring whether an acknowledgement (ACK) indicator is received from the network apparatus during a transmission gap of the uplink channel, and terminating uplink data transmission if the ACK indicator is received.

Description

Data transmission method and device

The present invention relates to wireless communications, and more particularly to a Narrow Band-Internet of Things (NB-IoTs) uplink (UL) power consumption reduction scheme.

In the field of telecommunications, there are well-developed and well-defined Cellular communication technologies for wireless communication using Mobile Terminal (MT) or User Equipment (UE). For example, the Global System for Mobile Communications (GSM) is a well-defined and versatile communication system that uses Time Division Multiple Access (TDMA) technology. TDMA technology is a digital radio multiplex access mechanism for the transmission of voice, video, data and signalling information (such as dialed telephone numbers) between a mobile phone and a cell site. CDMA 2000 is a hybrid mobile communications 2.5G/3G technology standard that uses code division multiple access (CDMA) technology. The Universal Mobile Telecommunications System (UMTS) is a 3G communication system that provides enhanced range of multimedia services over the GSM system. Long Term Evolution (LTE) and its derivatives, such as Advanced LTE (LTE-A) and Professional Advanced LTE (LTE-A Pro), are high-speed wireless communication standards for mobile phones and data terminals. In these communication technologies, the UE is operated by a human user and can be frequently charged.

In the next generation of communication technologies, such as 5G, Internet of Things (IoT) or NB-IoT, more and more devices will be deployed as machine type apparatus, such as inactive or A fixed device, a home apparatus, an infrastructure apparatus, or a monitoring apparatus. These NB-IoT devices may need to be operated for a long time without a large capacity battery or when they cannot be recharged frequently. When the NB-IoT device is configured to periodically report data, it will cause a lot of power consumption. If the NB-IoT device continues to report data without a power saving mechanism, it will run out of power in a short time.

Accordingly, when the NB-IoT device is configured to periodically transmit uplink data, power consumption becomes an important issue for NB-IoT devices. Therefore, there is a need to provide a power saving mechanism for NB-IoT devices to reduce uplink power consumption.

In view of this, the present invention provides various data transmission methods and devices.

A data transmission method according to an embodiment of the present invention is applicable to a narrowband Internet of Things device, the data transmission method comprising: transmitting uplink data to a network device through an uplink channel; detecting a transmission gap in the uplink channel Whether an acknowledgment indication from the network device is received; and if the acknowledgment indication is received, the transmission of the uplink data is terminated.

A data transmission method according to an embodiment of the present invention is applicable to a network device, the data transmission method comprising: receiving uplink data from a narrowband IoT device through an uplink channel; and decoding the uplink data; And if the uplink data is successfully decoded, sending an acknowledgement indication to the narrowband IoT device; wherein the acknowledgement indication is sent before all of the uplink data is received.

A data transmission method according to an embodiment of the present invention is applicable to a narrowband Internet of Things device, the data transmission method comprising: performing uplink data transmission through an uplink channel; estimating channel quality of the uplink channel; and according to the channel Quality, adjust the transmission length of the uplink data.

A data transmission method according to an embodiment of the present invention is applicable to a narrowband Internet of Things device, the data transmission method comprising: performing uplink data transmission through an uplink channel; estimating channel quality of the uplink channel; and according to the channel Quality, adjust the transmission power level.

A data transmission apparatus according to an embodiment of the present invention is applicable to a narrowband Internet of Things device, the data transmission apparatus comprising: a transceiver for performing uplink data transmission transmitted to a network device through an uplink channel; and a processor And being coupled to the transceiver, the processor is configured to detect whether an acknowledgment indication from the network device is received in a transmission gap of the uplink channel, and terminate the uplink data if the acknowledgment indication is received Transmission. According to an embodiment of the invention, if the acknowledgment indication is not received, after the transmission gap, the processor controls the transceiver to continue performing transmission of the uplink data. According to an embodiment of the invention, the uplink channel is a narrowband physical random access channel or a narrowband physical uplink shared channel. According to an embodiment of the invention, the acknowledgment indication is received via a narrowband entity downlink control channel.

A data transmission apparatus according to an embodiment of the present invention is applicable to a network device, the data transmission apparatus comprising: a transceiver for receiving uplink data transmission from a narrowband IoT device through an uplink channel; and a processor, And coupled to the transceiver, the processor is configured to decode the received uplink data, and if the received uplink data is successfully decoded, send an acknowledgement indication to the narrowband IoT device; wherein The acknowledgment indication is sent before all of the uplink data is received. According to an embodiment of the invention, the uplink channel refers to an entity random access channel or a narrowband entity uplink shared channel. According to an embodiment of the invention, the acknowledgment indication is transmitted within a transmission gap of the uplink channel through a narrowband entity downlink control channel.

A data transmission apparatus according to an embodiment of the present invention is applicable to a narrowband Internet of Things device, the data transmission apparatus comprising: a transceiver for performing uplink data transmission transmitted to a network device through an uplink channel; and a processor And coupled to the transceiver, the processor is configured to estimate channel quality of the uplink channel, and adjust a transmission length of the uplink data according to the quality of the channel. According to an embodiment of the invention, the step of the processor adjusting the transmission length of the uplink data according to the channel quality further comprises: if the channel quality is better than a predetermined condition, the processor reduces the uplink data. Transmission length. According to an embodiment of the invention, the step of reducing the transmission length of the uplink data by the processor further comprises: after the predetermined portion of the uplink data is transmitted, the processor turns off the radio frequency circuit of the narrowband IoT device . According to an embodiment of the invention, the step of reducing the transmission length of the uplink data by the processor further comprises: for at least a portion of the transmission length of the uplink data, the processor turns off the radio frequency of the narrowband IoT device Circuit. According to an embodiment of the invention, the step of reducing the transmission length of the uplink data by the processor further comprises: for a plurality of reference signals in the downlink channel, the processor turns on the radio frequency circuit of the narrowband IoT device. According to an embodiment of the present invention, the processor further determines whether the transmission length of the uplink data is less than a threshold; and if the transmission length of the uplink data is less than the threshold, the processing is performed according to the quality of the channel. Adjust the transmission power level. According to an embodiment of the invention, the step of the processor estimating the quality of the channel of the uplink channel further comprises: the processor determining whether a plurality of consecutive acknowledgment indications are received, or the processor determining the path of the uplink channel Whether the loss is less than a threshold value; or the processor determines whether a predetermined percentage of the confirmation indication is received within a predetermined time period.

According to an embodiment of the present invention, a data transmission apparatus includes: a transceiver for performing uplink data transmission transmitted to a network device through an uplink channel; and a processor coupled to the transceiver The processor is configured to estimate the channel quality of the uplink channel and adjust the transmission power level according to the quality of the channel. According to an embodiment of the invention, the step of the processor adjusting the transmission power level according to the channel quality further comprises: if the channel quality is better than a predetermined condition, the processor reduces the transmission power level. According to an embodiment of the invention, the step of reducing the transmission power level by the processor further comprises reducing the processor to a predetermined transmission power level for the transmission length of all uplink data. According to an embodiment of the invention, the step of reducing the transmission power level by the processor further comprises the processor gradually reducing the transmission power level during the transmission length of the uplink data. According to an embodiment of the invention, the processor further determines whether the transmission power level is less than a threshold value; and if the transmission power level is less than the threshold value, the processor adjusts the transmission of the uplink data according to the channel quality length. According to an embodiment of the invention, the step of the processor estimating the quality of the channel of the uplink channel further comprises: the processor determining to receive the plurality of consecutive acknowledgment indications; or the processor determining the path loss of the uplink channel Whether it is less than a threshold value; or the processor determines whether a predetermined percentage of the confirmation indication is received within a predetermined time period.

One of the advantages of the various data transmission methods and apparatus provided by the present invention is that the power consumption of uplink data transmission can be reduced.

Certain terms are used throughout the description and claims to refer to particular elements. Those of ordinary skill in the art should understand that hardware manufacturers may refer to the same component by different nouns. This specification and the scope of the patent application do not use the difference of the names as the means for distinguishing the elements, but the difference in function of the elements as the criterion for distinguishing. The words "including" and "including" as used throughout the specification and the scope of the patent application are an open term and should be interpreted as "including but not limited to". "About" means that within the acceptable error range, those skilled in the art can solve the technical problem within a certain error range, and basically achieve the technical effect. In addition, the term "coupled" is used herein to include any direct and indirect electrical connection. Therefore, if a first device is coupled to a second device, the first device can be directly electrically connected to the second device, or can be electrically connected to the second device through other devices or connection means. Device. The term "connected" is used herein to include any direct and indirect, wired and wireless means of connection. The following is a description of the preferred embodiments of the present invention, and is intended to illustrate the scope of the invention, and the scope of the present invention is defined by the scope of the appended claims.

Overview

Various embodiments in accordance with the present invention are related to various techniques, methods, mechanisms, and/or aspects related to UL power consumption reduction associated with user equipment in wireless communication. According to the invention, various possible solutions can be implemented separately or in combination. That is, although it is possible that these possible solutions are separately described below, it is possible that two or more of these possible solutions may be implemented in one combination or other combinations.

FIG. 1 is a schematic diagram of an example scenario 100 under multiple mechanisms in accordance with various embodiments of the present invention. The scenario 100 includes an NB-IoT device and a network device, where the network device can be a wireless network (eg, an LTE network, an LTE-A network, an LTE-A Pro network, a 5G network, or Part of the IoT network). The NB-IoT device can transmit UL data to the network device through the UL channel, where the UL channel can be, for example but not limited to, a Narrowband Physical Random Access Channel (NPRACH) or a narrowband physical uplink shared channel (Narrowband). Physical Uplink Shared Channel, NPUSCH). The network device can send downlink (DL) data to the NB-IoT device through the downlink channel, such as, but not limited to, a Narrowband Physical Downlink Control Channel (NPDCCH).

According to various embodiments of the present invention, the network device may configure an uplink data transmission length (Uplink Data Transmission Length) for the NB-IoT device, so that the NB-IoT device performs UL data transmission through the NPUSCH. The NB-IoT device needs to perform UL data transmission during the UL data transmission length. The network device can further configure a plurality of UL transmission intervals (gaps) within the length of the UL data transmission so that the NB-IoT device can perform timing or frequency reacquisition. As shown in Figure 1, the uplink data transmission length is configured from t0 to t5. The multiple transmission intervals (GAPs) of the NPUSCH are configured from t1 to t2 and from t3 to t4 (exemplary). The NB-IoT device is configured to transmit UL data 110, 120, 130, and 140 within the length of the UL data transmission. UL data 110, 120, 130, and 140 may have duplicated data to increase signal diversity and robustness. When the network device receives the UL data 110 or 120, the network device can initiate decoding of the UL data before receiving all of the UL data 110, 120, 130, and 140. If the network device successfully decodes the UL profile, the network device is configured to send an Acknowledgemet (ACK) indication 150 to the NB-IoT device within the UL transmission gap (eg, between t3 and t4).

The NB-IoT device is configured to detect the NPDCCH within a plurality of UL transmission gaps. If the ACK indication 150 is received, meaning that the network device has received and successfully decoded the UL data, the NB-IoT device is configured to terminate the UL data transmission after receiving the ACK indication 150. Since the UL data is successfully decoded by the network device, the NB-IoT device can stop the UL data transmission and no longer send the remaining UL data 130 and 140. Therefore, the UL data transmission can be terminated early, thereby reducing the power consumption of the UL transmission.

2 is a schematic diagram of an example operation 200 of early termination in accordance with an embodiment of the present invention. Operation 200 can be implemented in any network including NB-IoT devices and wireless networks to implement various features and/or aspects set forth in accordance with the concepts and mechanisms of the present invention. More specifically, operation 200 may be an early termination of the UL data transmission. Operation 200 may include one or more operations, steps or functions represented by one or more of blocks 210, 220, 230, 240, 250, 260, 270, and 280. Although shown as separate blocks, the plurality of blocks of operation 200 may also divide additional blocks, combine into fewer blocks, or omit portions of the blocks according to design requirements. Operation 200 may be implemented in part or in whole by each of the NB-IoT devices and network devices described above, or may also be implemented by each of NB-IoT device 1010 and network device 1020 described below. For purposes of illustration and not limitation of the scope of the invention, the description of operation 200 may be provided as follows for the context of the NB-IoT device and the network device. Operation 200 can begin at step 210.

In step 210, the NB-IoT device can transmit UL data to the network device through the UL channel (eg, NPUSCH or NPRACH). Operation 200 may proceed from step 210 to step 220.

In step 220, the network device can determine if the UL data can be decoded successfully. If so, operation 200 can proceed from step 220 to step 230. If no, operation 200 can proceed from step 220 to step 240.

In step 230, the network device can send an ACK indication to the NB-IoT device within the UL transmission gap. Operation 200 may proceed from step 230 to step 250.

In step 240, the network device may not send an ACK indication to the NB-IoT device within the UL transmission gap. Alternatively, the network device may send a negative (NACK) indication to the NB-IoT within the UL transmission gap. Operation 200 may proceed from step 240 to step 250.

In step 250, the NB-IoT device can monitor the DL channel (eg, NPDCCH) within multiple UL transmission slots. Operation 200 may proceed from step 250 to step 260.

In step 260, the NB-IoT device may determine whether an ACK indication is received. If so, operation 200 can proceed from step 260 to step 270. If no, operation 200 may proceed from step 260 to step 270.

In step 270, the NB-IoT device can terminate the uplink data transmission.

In step 280, the NB-IoT device can continue to transmit the uplink data.

In some embodiments, the ACK indication may be a Hybrid Automatic Repeat Request (HARQ) ACK, or a new indication or any type of indication indicating whether the uplink material was received or decoded successfully. For example, the ACK indication can be a new data indication in the form of a data bit. If the new data indicates a new data, it means that a UL data packet is received and a new data packet should be sent. If the new data indicates that the old data is indicated, it means that the UL data packet has not been received and the old data packet should be sent. Therefore, the new data indication can be used to indicate an ACK indication or a NACK indication. In NB-IoT, the ACK/NACK indication can also be carried in other channels or in new channels.

3 and 4 are schematic diagrams of example scenes 300 and 400, respectively, under various mechanisms in accordance with various embodiments of the present invention. Scenarios 300 and 400 include NB-IoT devices and network devices, which may be part of a wireless network (eg, LTE network, LTE-A network, LTE-A Pro network, 5G network, or IoT network) ). The NB-IoT device can transmit UL data to the network device through the UL channel, where the UL channel is, for example but not limited to, NPRACH or NPUSCH. The network device can transmit DL data to the NB-IoT device through the DL channel, where the DL channel is, for example but not limited to, the NPDCCH.

According to various embodiments of the present invention, the NB-IoT device may receive the UL profile transmission length Nmax of the network configuration from the network device to perform UL data transmission through the NPUSCH. First, the NB-IoT device can be configured with a UL data transmission length of And use NTX to perform UL data transfer. The NB-IoT device can then estimate the channel quality of the NPUSCH. The NB-IoT device can further adjust the UL data transmission length NTX according to the channel quality. More specifically, the NB-IoT device can determine if the channel quality is better than a predetermined condition. Depending on channel quality, NB-IoT devices can use a scaling factor α (for example, ) to adjust the length of the UL data transmission. According to the channel quality, the scale factor can use the ACK offset value (offset value) Or NACK offset value To adjust. When the channel quality is better than the predetermined condition, the NB-IoT device can use by (for example, 0.9 = 1 – 0.1) to adjust the scale factor. When the channel quality is not better than the predetermined condition, the NB-IoT device can be used. (for example, 0.6 = 0.5 + 0.1) to adjust the scale factor. ACK offset value Offset value with NACK It can also be adjusted according to the channel quality. For example, if the channel quality is good, the ACK offset value It can be increased from 0.1 to 0.2. If the channel quality is poor, the NACK offset value It can be increased from 0.1 to 0.2.

Accordingly, if the channel quality is better than the predetermined condition, the NB-IoT device can shorten the UL data transmission length to reduce the UL power consumption. As shown in Figure 3, the UL data transmission length is shortened to . In the predetermined portion of the UL material that has been sent (for example, After that, the NB-IoT device can directly terminate the UL data transmission. The NB-IoT device initiates transmission (Tx) and transmits UL data only during the on duration and turns off the transmission during off duration. In some embodiments, the NB-IoT device can turn off a radio frequency (RF) circuit or a partial front end (Front End, FE) circuit during shutdown to reduce power consumption.

Alternatively, the NB-IoT device can adjust the UL data transmission length using a predetermined on/off pattern. Specifically, the NB-IoT device can determine the ratio β during the startup/shutdown period in a short time and transmit the length of the entire UL data. The ratio β during the on/off period is repeatedly applied. Depending on the channel quality, the ratio β during the on/off period can use the ACK offset value. Or NACK offset value To adjust. When the channel quality is better than the predetermined condition, the NB-IoT device can be used. (For example, 0.9 = 1 – 0.1) to adjust the ratio β during start/stop. When the channel quality is not better than the predetermined condition, the NB-IoT device can be used. (For example, 1.1 = 1 + 0.1) to adjust the ratio β during start/stop. The ACK offset value and the NACK offset value can also be adjusted according to the channel quality. For example, if the channel quality is good, the ACK offset value It can be increased from 0.1 to 0.2. If the channel quality is not good, the NACK offset value It can be increased from 0.1 to 0.2.

As shown in Figure 4, the UL data transmission length is shortened by partially turning off UL data transmission. The NB-IoT device initiates transmission (Tx) and sends UL data only during the on period and turns off the transmission during the off period. In some embodiments, the NB-IoT can turn off the RF circuitry or part of the front end circuitry during shutdown to reduce power consumption.

In some embodiments, the network device can schedule multiple reference signals, such as a Demodulation Reference Signal (DMRS), in the DL channel. The NB-IoT device may need to receive multiple reference signals for channel estimation. Accordingly, if multiple reference signals are scheduled in FIG. 3 or FIG. 4, the NB-IoT device may need to turn on the radio frequency circuit of the NB-IoT device to receive multiple reference signals in the DL channel.

In some embodiments, how the NB-IoT device determines if the channel quality is better than the predetermined condition can be implemented in a variety of ways. For example, the NB-IoT device can estimate channel quality by determining whether multiple consecutive ACK indications are received. If the NB-IoT device receives N consecutive ACK indications, it means that all UL data is successfully transmitted and the channel quality is good. The value of N can be adjusted according to the actual application. Alternatively, the NB-IoT device can estimate the channel quality by determining whether the path loss of the UL channel or the Block Error Rate (BLER) is less than a threshold value. If the path loss or BLER of the UL channel is low, it means that the channel quality is good. Alternatively, the NB-IoT device may estimate channel quality by determining whether a predetermined percentage (eg, 90%) of ACK indications are received within a predetermined time period T. If the NB-IoT device receives a predetermined percentage (eg, 90%) of the ACK indication within the predetermined time period T, it means that most of the UL data has been successfully transmitted and the channel quality is good. The predetermined percentage can be adjusted according to the actual application. The predetermined time period T can also be adjusted according to the channel quality of the UL channel. If the channel quality is good, the predetermined time T can be shortened. If the channel quality is not good, the predetermined time period T can be increased. If the NB-IoT device reselects to the new network device, the predetermined time period T can be reset to an initial value.

FIG. 5 is a schematic diagram of an example operation 500 of shortening a UL data transmission length in accordance with an embodiment of the present invention. Operation 500 can be implemented on any network including NB-IoT devices and wireless networks to implement various features and/or aspects set forth in accordance with the concepts and mechanisms of the present invention. More specifically, operation 500 may be related to a reduction in UL power consumption. Operation 500 can include one or more operations, steps, or functions represented by one or more of blocks 510, 520, 530, 540, and 550. Although shown as separate blocks, depending on implementation requirements, multiple blocks of operation 500 may divide additional blocks, combine into fewer blocks, or omit partial blocks. Operation 500 may be implemented in whole or in part by the NB-IoT device described above and the NB-IoT device 1010 described below. The description of operation 500 may be provided as follows in the context of NB-IoT devices and network devices for illustrative purposes and not to limit the scope of the present invention. Operation 500 can begin at step 510.

In step 510, the NB-IoT device can configure the UL data transmission length according to the network information received from the network device. And configure the scale factor α as the initial value. For example, the scale factor can be configured to . Alternatively, the NB-IoT device may configure the ratio β during the on/off period to an initial value. The UL data transmission length Nmax is configured by the network device. Operation 500 can proceed from step 510 to step 520.

In step 520, the NB-IoT device can perform UL data transmission through the UL channel, and the length of the UL data transmission is . Operation 500 can proceed from step 520 to step 530.

In step 530, the NB-IoT device can determine if the channel quality is better than a predetermined condition. If so, operation 500 can proceed from step 530 to step 540. If no, operation 500 can proceed from step 530 to step 550.

In step 540, the NB-IoT device can be used. with To shorten the length of UL data transmission. Alternatively, NB-IoT devices can be used To reduce the ratio β during the on/off period. Operation 500 can proceed further from step 540 to step 520.

In step 550, the NB-IoT device can be used. with To increase the length of UL data transmission, or to maintain the length of UL data transmission. Alternatively, NB-IoT devices can be used To increase the ratio β during the on/off period, or to maintain the ratio β during the on/off period. Operation 500 may proceed further from step 550 to step 520.

FIG. 6 is a schematic diagram of an example scenario 600 under various mechanisms in accordance with various embodiments of the present invention. Scenario 600 includes NB-IoT devices and network devices, which may be part of a wireless network (eg, an LTE network, an LTE-A network, an LTE-A Pro network, a 5G network, or an IoT network). The NB-IoT device can transmit UL data to the network device through the UL channel, and the UL channel can be, for example but not limited to, NPRACH or NPUSCH. The network device can send DL data to the NB-IoT device through the DL channel, and the DL channel can be, for example but not limited to, the NPDCCH.

According to various embodiments of the present invention, the NB-IoT device can receive the transmission power level of the network configuration from the network device. To perform UL data transmission through the NPUSCH. First, the NB-IoT device can be configured with a transmission power level of And use Pmax to perform UL data transmission. The NB-IoT device can then estimate the channel quality of the NPUSCH. Depending on the channel quality, the NB-IoT device can further adjust the transmission power level PTX. More specifically, the NB-IoT device can determine if the channel quality is better than a predetermined condition. NB-IoT devices can use ACK power offset values depending on channel quality Or NACK power offset value To adjust the transmission power level. When the channel quality is better than the predetermined condition, the NB-IoT device can be To adjust the transmission power level. When the channel quality is not better than the predetermined condition, the NB-IoT device can be used. To adjust the transmission power level. ACK power offset value And NACK power offset value It can also be adjusted according to the channel quality. For example, if the channel quality is good, the ACK power offset value It can be increased from 3dB to 6dB. If the channel quality is not good, the NACK power offset value It can be increased from 3dB to 6dB.

Accordingly, if the channel quality is better than the predetermined condition, the NB-IoT device can lower the transmission power level to reduce the UL power consumption. As shown in FIG. 6, the network device configures an initial transmission power pattern 610. In the transmission power mode 610, for the UL data transmission length Tmax, the NB-IoT device transmits the UL data using the transmission power level Pmax of the network configuration. If the channel quality is better than the predetermined condition, the NB-IoT device can change the transmission power to the transmission power mode 620. More specifically, during the entire UL data transmission length Tmax, the NB-IoT device can directly reduce the transmission power level to . In some embodiments, if the channel quality is good enough, the NB-IoT device can directly reduce the transmission power level to the entire UL data transmission length Tmax. or .

Alternatively, if the channel quality is better than the predetermined condition, the NB-IoT device can change the transmission power to the transmission power mode 630. More specifically, first, the NB-IoT device can configure the transmission power level to And use Pmax to perform UL data transmission. The NB-IoT device can then estimate the channel quality of the NPUSCH. The NB-IoT device can further adjust the transmission power level PTX according to the channel quality. As shown in Figure 6, the NB-IoT device only configures the transmission power level for the X1 period. . After the X1 period, the NB-IoT device can reduce the transmission power level by Y1 and configure the transmission power level to be in the X2 period. . After the period X2, the NB-IoT device can further reduce the transmission power level by Y2 and configure the transmission power level to be in the X3 period. . After the X3 period, the NB-IoT device can further reduce the transmission power level by Y3 and configure the transmission power level to be during the X4 period. . Accordingly, if the channel quality is better than the predetermined condition, the NB-IoT device can gradually reduce the transmission power level to reduce the UL power consumption.

In some embodiments, how the NB-IoT device determines if the channel quality is better than the predetermined condition can be implemented in a variety of ways. For example, the NB-IoT device can estimate channel quality by determining whether multiple consecutive ACK indications are received. If the NB-IoT device receives N consecutive ACK indications, it means that all UL data is successfully transmitted and the channel quality is good. The value of N can be adjusted according to the actual application. Alternatively, the NB-IoT device can estimate the channel quality by determining the path loss of the UL channel or whether the BLER is less than a threshold value. If the path loss or BLER of the UL channel is low, it means that the channel quality is good. Alternatively, the NB-IoT device may estimate channel quality by determining whether a predetermined percentage of ACK indications were received within a predetermined time period T. If the NB-IoT device receives a predetermined percentage (eg, 90%) of the ACK indication within the predetermined time period T, it means that most of the UL data has been successfully transmitted and the channel quality is good. The predetermined percentage can be adjusted according to the actual application. The predetermined time period T can also be adjusted according to the channel quality of the UL channel. If the channel quality is good, the predetermined time T can be shortened. If the channel quality is not good, the predetermined time period T can be increased. If the NB-IoT device reselects to the new network device, the predetermined time period T can be reset to the initial value.

FIG. 7 is a schematic diagram of an example operation 700 of reducing transmission power levels in accordance with an embodiment of the present invention. Operation 700 can be implemented in any network including NB-IoT devices and wireless networks to implement various features and/or aspects set forth in accordance with the concepts and mechanisms of the present invention. More specifically, operation 700 may be related to a reduction in UL power consumption. Operation 700 can include one or more operations, steps or functions represented by one or more of blocks 710, 720, 730, 740, and 750. Although shown as separate blocks, the plurality of blocks of operation 700 may also divide additional blocks, combine into fewer blocks, or omit portions of the blocks according to design requirements. Operation 700 may be implemented in part or in whole by the NB-IoT device described above or the NB-IoT device 1010 described below. The description of operation 700 may be provided as follows in the context of NB-IoT devices and network devices for illustrative purposes and not to limit the scope of the present invention. Operation 700 can begin at step 710.

In step 710, the NB-IoT device can configure the transmission power level according to the network information received from the network device. . The transmission power level Pmax is configured by the network device. Operation 700 can proceed from step 710 to step 720.

In step 720, the NB-IoT device can perform UL data transmission through the UL channel, using a transmission power level of . Operation 700 can proceed from step 720 to step 730.

In step 730, the NB-IoT device can determine if the channel quality is better than a predetermined condition. If so, operation 700 can proceed from step 730 to step 740. If no, then operation proceeds from step 730 to step 750.

In step 740, the NB-IoT device can be used. To reduce the transmission power level. Operation 700 may proceed further from step 740 to step 720.

In step 750, the NB-IoT device can be used. To increase the transmission power level, or to maintain the transmission power level. Operation 700 can proceed further from step 750 to step 720.

FIG. 8 is a diagram of an example operation 800 of reducing UL data transmission length and transmission power level, in accordance with an embodiment of the present invention. Operation 800 can be implemented in any network including NB-IoT devices and wireless networks to implement various features and/or aspects set forth in accordance with the concepts and mechanisms of the present invention. More specifically, operation 800 may be related to a reduction in UL power consumption. Operation 800 can include one or more operations, steps or functions represented by one or more of blocks 810, 820, 830, 840, and 850. Although shown as separate blocks, the plurality of blocks of operation 800 may also divide additional blocks, combine into fewer blocks, or omit portions of the blocks according to design requirements. Operation 800 may be implemented in part or in whole by the NB-IoT device described above or the NB-IoT device 1010 described below. The description of operation 800 may be provided as follows in the context of an NB-IoT device and a network device for illustrative purposes and not to limit the scope of the present invention. Operation 800 can begin at step 810.

In step 810, the NB-IoT device can configure the UL data transmission length according to the network information received from the network device. And configure the transmit power level to . The UL data transmission length Nmax and the transmission power level Pmax are configured by the network device. Operation 800 may proceed from step 810 to step 820.

In step 820, the NB-IoT device can shorten the UL data transmission length according to the channel quality of the UL channel. Operation 800 can proceed from step 820 to step 830.

In step 830, the NB-IoT device can determine if the UL data transmission length is less than a threshold. If so, operation 800 can proceed from step 830 to step 840. If no, operation 800 can proceed from step 830 to step 850.

In step 840, the NB-IoT can reduce the transmission power level according to the channel quality of the UL channel.

In step 850, the NB-IoT device can maintain the transmission power level. In some implementations, operation 800 can proceed further from step 850 to step 820.

9 is a schematic diagram of an example operation 900 of shortening a UL data transmission length and reducing a transmission power level, in accordance with an embodiment of the present invention. Operation 900 can be implemented in any network including NB-IoT devices and wireless networks to implement various features and/or aspects set forth in accordance with the concepts and mechanisms of the present invention. More specifically, operation 900 may be related to a reduction in UL power consumption. Operation 900 can include one or more operations, steps or functions represented by one or more of blocks 910, 920, 930, 940, and 950. Although shown as separate blocks, the plurality of blocks of operation 900 may also divide additional blocks, combine into fewer blocks, or omit portions of the blocks according to design requirements. Operation 900 may be implemented in part or in whole by the NB-IoT device described above or the NB-IoT device 1010 described below. The description of operation 900 may be provided as follows in the context of an NB-IoT device and a network device for illustrative purposes and not to limit the scope of the present invention. Operation 900 can begin at step 910.

In step 910, the NB-IoT device can configure the UL data transmission length according to the network information received from the network device. And configure the transmit power level to . The UL data transmission length Nmax and the transmission power level Pmax are configured by the network device. Operation 900 can proceed from step 910 to step 920.

In step 920, the NB-IoT device can reduce the transmission power level according to the channel quality of the UL channel. Operation 900 may proceed from step 920 to step 930.

In step 930, the NB-IoT device can determine if the transmission power level is less than a threshold. If so, operation 900 can proceed from step 930 to step 940. If no, operation 900 can proceed from step 930 to step 950.

In step 940, the NB-IoT device can shorten the UL data transmission length according to the channel quality of the UL channel.

In step 950, the NB-IoT device can maintain the UL data transmission length. In some implementations, operation 900 can proceed further from step 950 to step 920.

Example embodiment

FIG. 10 is a schematic diagram of an example NB-IoT device 1010 and an example network device 1020, in accordance with an embodiment of the present invention. Each of NB-IoT device 1010 and network device 1020 can perform a variety of functions to implement the various mechanisms, techniques, operations, and methods described herein with respect to UE power consumption reduction in wireless communication, including scenario 100 above. , 300, 400, and 600, and the above operations 200, 500, 700, 800, and 900 operate as described below with 1100-1300.

The NB-IoT device 1010 may be part of an electronic device, which may be a UE such as a portable or mobile device, a wearable device, a wireless communication device, or a computer device. For example, the NB-IoT device 1010 can be implemented in a smart phone, a smart watch, a personal digital assistant, a digital camera, or a computer device such as a tablet, laptop, or laptop. The NB-IoT device 1010 page may be part of a machine type device, which may be an IoT device such as an immobile/stationary device, a home device, a wired communication device, or a computer device. For example, the NB-IoT device 1010 can be implemented in a thermostat, smart refrigerator, smart door lock, wireless speaker, or home control center. Alternatively, NB-IoT device 1010 may be implemented in the form of one or more Integrated-Circuit (IC) chips such as, but not limited to, one or more single core processors, one or more multi-core processing , or one or more Complex-Instruction-Set-Computing (CISC) processors. The NB-IoT device 1010 can include at least a portion of these elements shown in FIG. 10, such as the processor 1012. The NB-IoT device 1010 may further include one or more other components (eg, internal power supplies, display devices, and/or user interface devices) that are independent of the mechanisms provided by the present invention, and, therefore, for simplicity, NB- These elements of the IoT device 1010 are not shown in Figure 10 and are not described below.

Network device 1020 may be part of an electronic device, which may be a network node such as a Base Station (BS), a cell, a router, or a gateway (GW). For example, network device 1020 can be implemented in an eNodeB in an LTE, LTE-A, or LTE-A Pro network, or in a gNB in a 5G, NR, or IoT network. Alternatively, network device 1020 can be implemented in the form of one or more IC chips, such as but not limited to, one or more single core processors, one or more multi-core processors, or one or more CISC processors. Network device 1020 can include at least a portion of the plurality of elements shown in FIG. 10, such as processor 1022. Network device 1020 may further include one or more other components (eg, internal power supplies, display devices, and/or user interface devices) that are independent of the mechanisms provided by the present invention, and, for brevity, network device 1020 These elements are not shown in Figure 10 and are not described below.

In an aspect, each of processor 1012 and processor 1022 can be implemented in the form of one or more single core processors, one or more multi-core processors, or one or more CISC processors. In other words, even though the singular "one processor" is used herein to refer to processor 1012 and processor 1022, each of processor 1012 and processor 1022 may include multiple processes in some embodiments in accordance with the present invention. And, in some other embodiments in accordance with the invention, a single processor is included. In another aspect, each of processor 1012 and processor 1022 can be implemented in a hardware form (and, optionally, in firmware form) using a plurality of electronic components including, for example, but not limited to, one Or a plurality of transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors, and/or one or more varactors, The electronic components are configured and arranged to implement a plurality of specific functions in accordance with the present invention. That is, in at least some embodiments, each of processor 1012 and processor 1022 is special-purpose machine specifically designed and arranged for execution including performing in accordance with the present invention. The specific implementation of the device (e.g., as represented by NB-IoT device 1010) and the network (e.g., represented by network device 1020) reduces the UL power consumption.

In some embodiments, the NB-IoT device 1010 can also include a transceiver 1016 coupled to the processor 1012 and capable of wirelessly transceiving data. In some embodiments, the NB-IoT device 1010 can further include a memory 1014 coupled to the processor 1012 and capable of being accessed and stored by the processor 1012. In some embodiments, the network device 1020 can also include a transceiver 1026 coupled to the processor 1022 and capable of wirelessly transceiving data. In some embodiments, the network device 1020 can further include a memory 1024 coupled to the processor 1022 and capable of being accessed and stored by the processor 1022. Accordingly, the NB-IoT device 1010 and the network device 1020 can wirelessly communicate with each other through the transceiver 1016 and the transceiver 1026, respectively. To facilitate understanding, the following description of the multiple operations, functions, and capabilities of each of NB-IoT device 1010 and network device 1020 will be provided in the context of an NB-IoT environment in which the NB-IoT environment is provided. The NB-IoT device 1010 is implemented or implemented as an NB-IoT device or UE, and the network device 1020 is implemented or implemented as a network node of the NB-IoT network.

The following description is related to the various operations, functions, and capabilities of the NB-IoT device 1010.

In some implementations, the processor 1012 can be configured to estimate channel quality of a UL channel (eg, NPDCCH or PRACH). Processor 1012 can be further configured to adjust the UL data transmission length based on channel quality. More specifically, the processor 1012 can be configured to determine if the channel quality is better than a predetermined condition. Depending on the channel quality, the processor 1012 can adjust the UL data transmission length using a scaling factor a. When the channel quality is better than the predetermined condition, the processor 1012 can use To adjust the scale factor. When the channel quality is not better than the predetermined condition, the processor 1012 can use To adjust the scale factor. Depending on the channel quality, the processor 1012 page can use the ACK offset value. Or NACK offset value To adjust the scale factor. For example, if the channel quality is better, the processor 1012 can set the ACK offset value. Increased from 0.1 to 0.2. If the channel quality is not good, the processor 1012 can set the NACK offset value. Increased from 0.1 to 0.2. Accordingly, if the channel quality is better than the predetermined condition, the processor 1012 can be configured to shorten the UL data transmission length to reduce the UL power consumption.

In some embodiments, after a predetermined portion of the UL material has been transmitted, the processor 1012 can be configured to directly terminate the UL data transmission. The processor 1012 can be configured to initiate transmission (TX) and transmit UL data only during turn-on, and turn off the transmission during shutdown. In some embodiments, the processor 1012 can be configured to turn off the transceiver 1016 or a portion of the front end circuitry to reduce power consumption during shutdown.

In some implementations, the processor 1012 can be configured to adjust the UL data transmission length using a predetermined on/off mode. Specifically, the processor 1012 may be configured to determine the ratio β during the on/off period in a short time and repeatedly apply the ratio β of the on period/off period to the entire UL data transmission length. When the channel quality is better than the predetermined condition, the processor 1012 can use To adjust the ratio β during the on/off period. When the channel quality is not better than the predetermined condition, the processor 1012 can use To adjust the ratio β during the on/off period. The processor 1012 can also adjust the ACK offset value according to the channel quality. Offset value with NACK . For example, if the channel quality is better, the processor 1012 can set the ACK offset value. Adjust from 0.1 to 0.2. If the channel quality is not good, the processor 1012 can offset the NACK value. Adjust from 0.1 to 0.2.

In some embodiments, the network device can schedule multiple reference signals, such as DMRS, in the DL channel. The NB-IoT device may need to receive multiple reference signals for channel estimation. Accordingly, if a plurality of reference signals are scheduled during a plurality of off durations, the processor 1012 can be configured to turn on the transceiver 1016 to receive a plurality of reference signals in the DL channel.

In some implementations, the processor 1012 can be configured to determine if the channel quality is better than a predetermined condition. For example, processor 1012 can be configured to estimate channel quality via determining whether multiple consecutive ACK indications are received. If the processor 1012 receives N consecutive ACK indications, it means that the UL data is all successfully transmitted and the channel quality is good. The value of N can be adjusted according to the actual application. Alternatively, the processor 1012 can be configured to estimate channel quality by determining whether the path loss of the UL channel or the BLER is less than a threshold value. If the path loss or BLER of the UL channel is low, it means that the channel quality is good. Alternatively, the processor 1012 may be configured to estimate channel quality by determining whether a predetermined percentage of ACK indications were received within a predetermined time period T. If the processor 1012 receives a predetermined percentage (eg, 90%) of the ACK indication within the predetermined time period T, it means that most of the UL data has been successfully transmitted and the channel quality is good. The predetermined percentage can be adjusted according to the actual application. The processor 1012 can also adjust the predetermined time period T according to the channel quality of the UL channel. If the channel quality is good, the processor 1012 can shorten the predetermined time T. If the channel quality is not good, the processor 1012 can increase the predetermined time period T. If the NB-IoT device reselects to the new network device, the processor 1012 can reset the predetermined time period T to the initial value.

In some implementations, the processor 1012 can be configured to receive a transmission power level Pmax from the network device through the transceiver 1016. The transmission power level Pmax is configured by the network device for the NB-IoT device 1010 to perform UL data transmission through the NPUSCH. The processor 1012 can be further configured to estimate the channel quality of the NPUSCH and adjust the transmission power level according to the channel quality. More specifically, the processor 1012 can be configured to determine whether the channel quality is better than a predetermined condition and use the ACK power offset value according to the signal quality. Or NACK power offset value To adjust the transmission power level. When the channel quality is better than the predetermined condition, the processor 1012 can use To adjust the transmission power level. When the channel quality is not better than the predetermined condition, the processor 1012 can use To adjust the transmission power level. The processor 1012 can also adjust the ACK power offset value depending on the channel quality. And NACK power offset value . For example, if the channel quality is better, the processor 1012 can offset the ACK power. Adjust from 3dB to 6dB. If the channel quality is not good, the processor 1012 can set the NACK power offset value. Adjust from 3dB to 6dB. Accordingly, if the channel quality is better than the predetermined condition, the processor 1012 can be configured to reduce the transmission power level to reduce UL power consumption.

In some embodiments, if the channel quality is better than the predetermined condition, the processor 1012 can be configured to directly reduce the transmission power level by 3 dB during the entire UL data transmission length. If the channel quality is good enough, the NB-IoT device can reduce the transmission power level by 6dB or 9dB during the entire UL data transmission.

In some embodiments, if the channel quality is better than a predetermined condition, the processor 1012 can be configured to gradually reduce the transmission power level to reduce UL power consumption. For example, processor 1012 can be configured to reduce the transmission power level by 3 dB for the first time period, reduce the transmission power level by 6 dB for the second time period, and reduce the transmission power level by 9 dB for the third time period.

In some implementations, the processor 1012 can be configured to reduce the UL data transmission length and reduce the transmission power level to reduce power consumption. Specifically, the processor 1012 may be configured to first shorten the UL data transmission length according to the channel quality of the UL channel. The processor 1012 can be further configured to determine if the UL data transmission length is less than a threshold value. If so, the processor 1012 can be configured to further reduce the transmission power level based on the channel quality of the UL channel. If not, the processor 1012 can be configured to maintain a transmission power level.

In some implementations, the processor 1012 can be configured to reduce the UL data transmission length and reduce the transmission power level to reduce power consumption. In particular, the processor 1012 can be configured to reduce the transmission power level based on the channel quality of the UL channel. The processor 1012 can be further configured to determine if the transmission power level is less than a threshold value. If so, the processor 1012 can be configured to further shorten the UL data transmission length based on the channel quality of the UL channel. If not, the processor 1012 can be configured to maintain the UL data transmission length.

The following description is directed to various operations, functions, and capabilities of network device 1020.

In some embodiments, the processor 1022 can be configured to transmit DL data to the NB-IoT device 1010 over a DL channel, such as but not limited to NPDCCH. The processor 1022 can be configured to transmit a UL data transmission length or a transmission power level to the NB-IoT device through the transceiver 1026 for the NB-IoT device to perform UL data transmission through the UL channel. The processor 1022 can be further configured to configure a plurality of UL transmission gaps within the UL data transmission length of the NB-IoT device for performing timing or frequency reacquisition.

In some embodiments, when the processor 1022 receives a portion of the UL data through the transceiver 1026, the processor 1022 can be configured to decode the received UL data prior to receiving all of the UL data. The processor 1022 can be further configured to determine whether the received UL data can be successfully decoded. If so, the processor 1022 can be configured to send an ACK indication to the NB-IoT device 1010 within the UL transmission gap. If not, the processor 1022 can be configured not to send an ACK indication to the NB-IoT device 1010 or to send a NACK indication to the NB-IoT device.

Sample action

11 is a schematic diagram of an example operation 1100 in accordance with an embodiment of the present invention. Operation 1100 may be an example implementation of scenario 100 that is partially or fully related to UL power consumption reduction in accordance with the present invention. Operation 1100 can represent an aspect of an embodiment of a plurality of features of NB-IoT device 1010. Operation 1100 can include one or more operations, steps, or functions represented by one or more of blocks 1110, 1120, 1130, and 1140. Although shown as separate blocks, the plurality of blocks of operation 1100 may also divide additional blocks, combine into fewer blocks, or omit portions of the blocks according to design requirements. Moreover, operation 1100 can be performed in the order shown in FIG. 11 or in other alternative different sequences. Operation 1100 can be implemented by NB-IoT device 1010 or any suitable UE or machine type device. For purposes of illustration and not limitation of the scope of the invention, operation 1100 is hereinafter described with the NB-IoT device 1010 as a background. Operation 1100 can begin at step 1110.

In step 1110, operation 1100 can include the NB-IoT device 1010 transmitting UL data to the network device through the UL channel. The UL channel may be, for example but not limited to, NPRACH or NPUSCH. The wiper even 1100 can proceed from step 1110 to step 1120.

In step 1120, operation 1100 can include the NB-IoT device 1010 monitoring whether an ACK indication from the network device was received during a transmission gap of the UL channel. If so, operation 1100 can proceed from step 1120 to step 1130. If no, operation 1100 can proceed from step 1120 to step 1140.

In step 1130, operation 1100 can include, upon receiving an ACK indication, the NB-IoT device 1010 terminates the UL data transmission.

In step 1140, operation 1100 can include, if an ACK indication is not received, the NB-IoT device 1010 continues to transmit the UL material after the transmission interval.

Figure 12 is a schematic illustration of an example operation 1200 in accordance with an embodiment of the present invention. Operation 1200 may be an example implementation of scenario 100, which is partially or fully related to UL power consumption reduction in accordance with the present invention. Operation 1200 can represent an aspect of an embodiment of a plurality of features of network device 1020. Operation 1200 can include one or more operations, steps, or functions represented by one or more of blocks 1210, 1220, 1230, and 1240. Although shown as separate blocks, the plurality of blocks of operation 1200 may also divide additional blocks, combine into fewer blocks, or omit portions of the blocks according to design requirements. Moreover, operations 1200 can be performed in the order shown in FIG. 12 or in other alternative different sequences. Operation 1200 can be implemented by network device 1020 or any suitable network node. For purposes of illustration and not limitation of the scope of the invention, operation 1200 is described below in the context of network device 1020. Operation 1200 can begin at step 1210.

In step 1210, operation 1200 can include the network device 1020 receiving UL data from the NB-IoT device over the UL channel. Operation 1200 can proceed from step 1210 to step 1220.

In step 1220, operation 1200 can include the network device 1020 determining if the UL material can be successfully decoded. If so, operation 1200 can proceed from step 1220 to step 1230. If no, operation 1200 can proceed from step 1220 to step 1240.

In step 1230, operation 1200 can include, prior to receiving all UL data, network device 1020 sends an ACK indication to the NB-IoT device.

In step 1240, operation 1200 can include the network device 1020 transmitting a NACK indication to the NB-IoT device or not transmitting an ACK indication to the NB-IoT device.

Figure 13 is a schematic illustration of an example operation 1300 in accordance with an embodiment of the present invention. Operation 1300 may be an example implementation of one, some, or all of scenes 300, 400, and 600, which is partially or fully related to UL power reduction in accordance with the present invention. Operation 1300 can represent an aspect of an embodiment of a plurality of features of NB-IoT device 1010. Operation 1300 can include one or more operations, steps, or functions represented by one or more of blocks 1310, 1320, and 1330. Although shown as separate blocks, the plurality of blocks of operation 1300 may also divide additional blocks, combine into fewer blocks, or omit portions of the blocks according to design requirements. Moreover, operations 1300 can be performed in the order shown in FIG. 13 or in other alternative different sequences. Operation 1300 can be implemented by NB-IoT device 1010 or any suitable UE or machine type device. For purposes of illustration and not limitation of the scope of the invention, operation 1300 is described below in the context of NB-IoT device 1010. Operation 1300 can begin at step 1310.

In step 1310, operation 1300 can include the NB-IoT device 1010 performing UL data transmission through the UL channel. Operation 1300 can proceed from step 1310 to step 1320.

In step 1320, operation 1300 can include the NB-IoT device 1010 estimating channel quality of the UL channel. Operation 1300 can proceed from step 1320 to step 1330.

In step 1330, operation 1300 can include the NB-IoT device 1010 adjusting the UL data transmission length according to the channel quality, or adjusting the transmission power level according to the channel quality.

In some embodiments, when the UL data transmission length is adjusted according to channel quality, operation 1300 can include the NB-IoT device 1010 shortening the UL data transmission length if the channel quality is better than the predetermined condition.

In some embodiments, when the UL data transmission length is shortened, operation 1300 can include: after the predetermined portion of the UL material has been transmitted, the NB-IoT device 1010 turns off the radio frequency circuit or part of the front end circuit of the NB-IoT device; or for UL The RF transmission circuit or part of the front-end circuit of the NB-IoT device is turned off in multiple parts of the data transmission length.

In some embodiments, when the UL data transmission length is shortened, operation 1300 can include the NB-IoT device 1010 turning on the radio frequency circuit of the NB-IoT device for receiving a plurality of reference signals in the DL channel.

In some embodiments, operation 1300 can further include: NB-IoT device 1010 determining whether the UL data transmission length is less than a threshold, and if the UL data transmission length is less than a threshold, adjusting the transmission power level according to channel quality.

In some embodiments, when the transmission power level is adjusted according to channel quality, operation 1300 can include the NB-IoT device 1010 lowering the transmission power level if the channel quality is better than the predetermined condition.

In some embodiments, when the transmission power level is lowered, operation 1300 can include the NB-IoT device 1010 reducing the overall UL data transmission length to a predetermined transmission power level, or gradually decreasing the transmission power level during the UL data transmission length.

In some embodiments, operation 1300 can further include: NB-IoT device 1010 determining if the transmission power level is below a threshold, and if the transmission power level is below a threshold, adjusting the UL data transmission length according to channel quality.

In some embodiments, when estimating the channel quality of the UL channel, operation 1300 can include the NB-IoT device 1010 determining whether to receive a plurality of consecutive ACK indications, determining whether the path loss of the UL channel is below a threshold, or determining Whether a predetermined percentage of ACK indications are received within a predetermined time period.

Supplementary explanation

The above embodiments of the present invention may be implemented as a hardware, a software code, or a combination thereof. According to an embodiment of the invention, the one or more steps of the above method and operation may be implemented by executing a corresponding code via a processor. The processor may be a processing unit, a digital signal processor (DSP), a microprocessor, a field for executing a code to implement a function corresponding to one or more steps included in the above method or operation. A Field Programmable Gate Array (FPGA) or any dedicated circuit that implements the above functions. These processors may be configured in accordance with the present invention to perform particular tasks via executing machine readable software code or firmware code that defines a particular method embodied by the present invention. Software code or firmware code can be developed using different programming languages and different formats or types. The software code can also be adapted to different target platforms. However, the different code formats, types, and language of the software code, and the configuration code, in other ways to perform the tasks in accordance with the present invention, do not depart from the spirit and scope of the present invention.

According to various embodiments of the present invention, a computer readable storage medium for storing at least one program instruction or program code may also be provided. When the at least one program instruction or code is loaded into the device or device (such as UE, BS, NB-IoT device, machine type device, etc.) described in the above embodiments of the present invention, the device or device The processor executes the at least one program instruction or code to implement one or more of the steps or functions of the methods provided in the various embodiments described above. According to some embodiments of the invention, the computer readable recording medium may be implemented as a memory accessible by the processor of the device or device. The memory may be included in the interior of the communication device or external to the device or device according to actual design requirements, and the invention is not limited thereto. According to still another embodiment of the present invention, the computer readable recording medium may be a read-only memory (ROM), a random-access memory (RAM), and a read-only optical disk (CD-ROM). ), magnetic tape, floppy disk or optical data storage device, etc., the invention is not limited thereto.

The above description is presented to enable a person of ordinary skill in the art to practice the invention. Many variations of the above-described embodiments will be apparent to those skilled in the art, and the basic principles defined herein may be applied to other embodiments. Therefore, the present invention is not limited to the specific embodiments shown and described, but the invention is in the scope of the invention. In the above Detailed Description, various specific details are provided to provide a comprehensive understanding of the invention. However, those of ordinary skill in the art will understand how the invention can be implemented. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100, 300, 400, 600‧‧‧ scenes
110~140‧‧‧UL information
150‧‧‧ACK instructions
200, 500, 700, 800, 900, 1100, 1200, 1300‧‧‧ operations
210~280, 510~550, 710~750, 810~850, 910~950, 1210~1240, 1310~1330‧‧
1010‧‧‧NB-IoT equipment
1012, 1022‧‧‧ processor
1014, 1024‧‧‧ memory
1016, 1026‧‧‧ transceiver
1020‧‧‧Network equipment
GAP‧‧‧ transmission interval
P _max ‧‧‧Transmission power level
T0~T5‧‧‧Time
T _max ‧‧‧UL data transmission length

FIG. 1 is a schematic diagram of an example scenario 100 under multiple mechanisms in accordance with various embodiments of the present invention. 2 is a schematic diagram of an example operation 200 of early termination in accordance with an embodiment of the present invention. FIG. 3 is a schematic diagram of an example scenario 300 under various mechanisms in accordance with various embodiments of the present invention. FIG. 4 is a schematic diagram of an example scenario 400 under various mechanisms in accordance with various embodiments of the present invention. FIG. 5 is a schematic diagram of an example operation 500 of shortening a UL data transmission length in accordance with an embodiment of the present invention. FIG. 6 is a schematic diagram of an example scenario 600 under various mechanisms in accordance with various embodiments of the present invention. FIG. 7 is a schematic diagram of an example operation 700 of reducing transmission power levels in accordance with an embodiment of the present invention. FIG. 8 is a diagram of an example operation 800 of reducing UL data transmission length and transmission power level, in accordance with an embodiment of the present invention. 9 is a schematic diagram of an example operation 900 of shortening a UL data transmission length and reducing a transmission power level, in accordance with an embodiment of the present invention. FIG. 10 is a schematic diagram of an example NB-IoT device 1010 and an example network device 1020, in accordance with an embodiment of the present invention. 11 is a schematic diagram of an example operation 1100 in accordance with an embodiment of the present invention. Figure 12 is a schematic illustration of an example operation 1200 in accordance with an embodiment of the present invention. Figure 13 is a schematic illustration of an example operation 1300 in accordance with an embodiment of the present invention.

Claims (10)

A data transmission method for a narrowband IoT device, the data transmission method comprising: performing uplink data transmission through an uplink channel; estimating channel quality of the uplink channel; and adjusting the uplink according to the quality of the channel The transmission length of the road data. The data transmission method of claim 1, wherein the step of adjusting the transmission length of the uplink data according to the quality of the channel further comprises: if the channel quality is better than a predetermined condition, reducing the uplink data The length of the transmission. The data transmission method of claim 2, wherein the step of reducing the transmission length of the uplink data further comprises: turning off the radio frequency of the narrowband Internet of Things device after the predetermined portion of the uplink data is transmitted Circuit. The data transmission method of claim 2, wherein the step of reducing the transmission length of the uplink data further comprises: turning off the narrowband IoT device for at least a portion of the transmission length of the uplink material RF circuit. The data transmission method of claim 2, wherein the step of reducing the transmission length of the uplink data further comprises: turning on a radio frequency circuit of the narrowband IoT device for a plurality of reference signals in the downlink channel . The data transmission method of claim 1, wherein the step of estimating the quality of the channel of the uplink channel further comprises: determining whether a plurality of consecutive acknowledgment indications are received; or determining whether a path loss of the uplink channel is Less than the threshold value; or determining whether a predetermined percentage of the confirmation indication is received within a predetermined time period. A data transmission method suitable for a narrowband IoT device, the data transmission method comprising: performing uplink data transmission through an uplink channel; estimating channel quality of the uplink channel; and adjusting a transmission power level according to the quality of the channel . The data transmission method of claim 7, wherein the step of adjusting the transmission power level according to the channel quality further comprises: if the channel quality is better than a predetermined condition, reducing the transmission power level. The data transmission method of claim 8, wherein the step of reducing the transmission power level further comprises: reducing the transmission length to a predetermined transmission power level for all uplink data. The data transmission method of claim 8, wherein the step of reducing the transmission power level further comprises: gradually reducing the transmission power level during the transmission length of the uplink data.