WO2021179135A9

WO2021179135A9 - Data transmission method, terminal device and network device

Info

Publication number: WO2021179135A9
Application number: PCT/CN2020/078466
Authority: WO
Inventors: 李海涛
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2022-07-14
Also published as: CN114982323A; WO2021179135A1

Abstract

Disclosed in the present invention are a data transmission method, a terminal device, a network device, a chip, a computer-readable storage medium, a computer program product, and a computer program. Said method comprises: a terminal device controlling uplink transmission, the method for controlling uplink transmission comprising: using a first modulating and decoding scheme (MCS) level to perform uplink transmission, or not performing uplink transmission, the first MCS level being determined according to at least one of the following: measurement related information of a serving cell of the terminal device, and/or M available MCS levels indicated by a first downlink channel, M being an integer greater than or equal to 1.

Description

A data transmission method, terminal device, and network device

technical field

The present invention relates to the field of communications, and in particular, to a data transmission method, terminal device, network device, chip, computer-readable storage medium, computer program product, and computer program.

Background technique

Compared with the cellular network adopted in the related art, the signal propagation delay between the terminal equipment and the satellite in the Non Terrestrial Network (NTN, non-terrestrial communication network) is greatly increased. A large propagation delay will introduce a large scheduling delay to scheduling transmission. As a result, the network device may use an inappropriate MCS level to schedule the uplink transmission of the terminal device. In such a scenario, how to control the uplink transmission of the terminal device to avoid the reduction of transmission efficiency or the failure of uplink transmission reception becomes a problem that needs to be solved.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, embodiments of the present invention provide a data transmission method, a terminal device, a network device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

In a first aspect, a data transmission method is provided, including:

The terminal equipment controls the uplink transmission; wherein, the manner of controlling the uplink transmission includes: using the first modulation and decoding scheme MCS level to perform the uplink transmission, or not performing the uplink transmission;

Wherein, the first MCS level is determined according to at least one of the following:

Measurement related information of the serving cell of the terminal device, and/or M available MCS levels indicated by the first downlink channel; M is an integer greater than or equal to 1.

In a second aspect, a data transmission method is provided, including:

The network device receives the uplink transmission that adopts the MCS level transmission of the first modulation and decoding scheme;

The first MCS level is an MCS level determined according to at least one of the following: measurement-related information of the serving cell of the terminal device, and/or M available MCS levels indicated by the first downlink channel; M is Integer greater than or equal to 1.

In a third aspect, a terminal device is provided, including:

a first communication unit, performing uplink transmission;

The first processing unit controls the uplink transmission; wherein, the method for controlling the uplink transmission includes: using the first modulation and decoding scheme MCS level to perform the uplink transmission, or not performing the uplink transmission;

The first MCS level is determined according to at least one of the following: measurement-related information of the serving cell, and/or M available MCS levels indicated by the first downlink channel; M is an integer greater than or equal to 1.

In a fourth aspect, a network device is provided, including:

a second communication unit, receiving the uplink transmission that adopts the MCS level transmission of the first modulation and decoding scheme;

In a fifth aspect, a terminal device is provided, comprising: a processor and a memory for storing a computer program that can be executed on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method as described above.

In a sixth aspect, a network device is provided, comprising: a processor and a memory for storing a computer program that can be executed on the processor,

In a seventh aspect, a chip is provided, comprising: a processor for calling and running a computer program from a memory, so that a device on which the chip is installed executes the aforementioned method.

In an eighth aspect, a computer-readable storage medium is provided, the computer-readable storage medium is used for storing a computer program, and the computer program causes a computer to execute the steps of the aforementioned method.

In a ninth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions causing a computer to perform the aforementioned method.

In a tenth aspect, a computer program is provided, the computer program causing a computer to perform the aforementioned method.

By adopting the above solution, in the process of controlling the uplink transmission by the terminal equipment, the most suitable MCS level is selected according to the measurement results of different serving cells of the terminal equipment, and then the first MCS level is used for uplink transmission, or no uplink transmission is performed. In this way, the uplink transmission of the terminal equipment can be accurately controlled, and the most suitable MCS level can be determined in combination with the measurement-related information of the serving cell, thereby avoiding the problems of reduced transmission efficiency and failure of uplink transmission and reception.

Description of drawings

FIG. 1 is a schematic diagram 1 of a communication system architecture provided by an embodiment of the present application;

FIG. 2 is a schematic flowchart 1 of a data transmission method provided by an embodiment of the present application;

3 is a second schematic flowchart of a data transmission method provided by an embodiment of the present application;

4 is a third schematic flowchart of a data transmission method provided by an embodiment of the present application;

FIG. 5 is a schematic diagram 1 of a processing scenario provided by an embodiment of the present application;

6 is a fourth schematic flowchart of a data transmission method provided by an embodiment of the present application;

FIG. 7 is a second schematic diagram of a processing scenario provided by an embodiment of the present application;

8 is a fifth schematic flowchart of a data transmission method provided by an embodiment of the present application;

FIG. 9 is a schematic diagram 3 of a processing scenario provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of the composition and structure of a terminal device provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of the composition and structure of a network device provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of the composition and structure of a communication device according to an embodiment of the present invention;

FIG. 13 is a schematic block diagram of a chip provided by an embodiment of the present application;

FIG. 14 is a schematic diagram 2 of a communication system architecture provided by an embodiment of the present application.

Detailed ways

In order to understand the features and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, a communication system 100 to which this embodiment of the present application is applied may be as shown in FIG. 1 . The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with the UE 120 (or referred to as a communication terminal device, a terminal device). The network device 110 may provide communication coverage for a particular geographic area and may communicate with UEs located within the coverage area. Optionally, the network device 110 may be a network device (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a network device (NodeB, NB) in a WCDMA system, or an evolution in an LTE system. type network equipment (Evolutional Node B, eNB or eNodeB), or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network equipment can be a mobile switching center, relay station, access point, Vehicle-mounted devices, wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolved Public Land Mobile Network (PLMN), etc.

The communication system 100 also includes at least one UE 120 located within the coverage of the network device 110 . "UE" as used herein includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connections; and/or another data connection/network; and/or via a wireless interface, e.g. for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter; and/or another UE's apparatus configured to receive/transmit communication signals; and/or an Internet of Things (IoT) device. A UE arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal device", a "wireless terminal device" or a "mobile terminal device".

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

An embodiment of the present invention provides a data transmission method, as shown in FIG. 2 , including:

Step 21: terminal equipment controls uplink transmission; wherein, the mode for controlling uplink transmission includes: adopting the first modulation and decoding scheme (MCS, Modulation and Coding Scheme) level to carry out uplink transmission, or, not performing uplink transmission;

The first MCS level is determined according to at least one of the following: measurement-related information of the serving cell of the terminal device, and/or M available MCS levels indicated by the first downlink channel; M is greater than An integer equal to 1.

Correspondingly, in the case where the terminal device adopts the first modulation and decoding scheme MCS level for uplink transmission, the embodiment of the present invention also provides a data transmission method for the network device, as shown in FIG. 3 , including:

Step 31: the network device receives the uplink transmission that adopts the first modulation and decoding scheme MCS level transmission;

Wherein, the first MCS level is an MCS level determined according to at least one of the following: measurement related information of the serving cell of the terminal device, and/or the M numbers indicated by the network device for the terminal device through the first downlink channel Available MCS levels; M is an integer greater than or equal to 1.

In this embodiment, the network device may be a satellite in an NTN scenario.

The embodiments provided in this application can be applied to Non Terrestrial Network (NTN, non-terrestrial communication network). Wherein, the NTN provides communication services to terrestrial users by means of satellite communication. Compared with terrestrial cellular network communication, satellite communication has many unique advantages. First of all, satellite communication is not limited by the user's geographical area. For example, general land communication cannot cover areas such as oceans, mountains, deserts, etc. where network equipment cannot be set up or cannot be covered due to sparse population. For satellite communication, due to a single Satellites can cover a large ground, and satellites can orbit around the earth, so theoretically every corner of the earth can be covered by satellite communications. Secondly, satellite communication has great social value. Satellite communications can be covered at low cost in remote mountainous areas and poor and backward countries or regions, so that people in these regions can enjoy advanced voice communication and mobile Internet technologies, which is conducive to narrowing the digital divide with developed regions and promoting development in these areas. Thirdly, the satellite communication distance is long, and the communication cost does not increase significantly when the communication distance increases; finally, the satellite communication has high stability and is not limited by natural disasters.

Communication satellites are classified into LEO (Low-Earth Orbit, low earth orbit) satellites, MEO (Medium-Earth Orbit, medium earth orbit) satellites, GEO (Geostationary Earth Orbit, geosynchronous orbit) satellites, HEO (High Earth orbit) satellites according to the different orbital altitudes. Elliptical Orbit, high elliptical orbit) satellites, etc. in,

LEO, the altitude range of low-orbit satellites is 500km to 1500km, and the corresponding orbital period is about 1.5 hours to 2 hours. The signal propagation delay of single-hop communication between users is generally less than 20ms. The maximum satellite viewing time is 20 minutes. The signal propagation distance is short, the link loss is small, and the transmit power requirements of the user terminal are not high.

GEO, a geostationary orbit satellite, has an orbital altitude of 35786km and a 24-hour rotation period around the earth. The signal propagation delay of single-hop communication between users is generally 250ms.

In order to ensure the coverage of satellites and improve the system capacity of the entire satellite communication system, satellites use multiple beams to cover the ground. A satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover tens to hundreds of kilometers in diameter. ground area.

The solution provided in this embodiment is especially suitable for dynamic scheduling (Dynamic Grant) uplink transmission. The description of dynamic scheduling uplink transmission is as follows: The network device (such as a satellite or a base station) is based on the BSR (Buffer Status Report) reported by the terminal device. ) information can know the data transmission requirements of the terminal equipment, and can estimate the channel quality of the terminal equipment through SRS (Sounding Reference Signal) measurement. measurement) can also estimate the uplink channel quality of the terminal equipment. The base station dynamically schedules uplink transmission through the PDCCH, and indicates information such as a UL grant (uplink grant) resource and an MCS level parameter used by the terminal device in the PDCCH. After receiving the PDCCH, the terminal device uses the indicated MCS parameters to transmit the MAC PDU generated by the MAC layer through the indicated UL grant.

Compared with the cellular network used in traditional NR, the signal propagation delay between terminal equipment and satellites in NTN is greatly increased. The large propagation delay will introduce a large scheduling delay to the scheduling transmission. The result is that the CSI information previously reported by the terminal device or the channel quality estimated by the network based on the previous SRS transmission of the terminal device may no longer be accurate during network scheduling. , which will cause the network to use an inappropriate MCS level to schedule the uplink transmission of the terminal device. Especially for the LEO satellite scenario, the relative speed of the satellite relative to the ground is very fast, resulting in a large change in the signal propagation delay. Different propagation delays mean that the channel quality varies greatly. If the network always uses the lowest MCS level to schedule uplink transmission, transmission failure will not be caused, but transmission efficiency will be reduced. If the network uses a higher MCS level to schedule uplink transmission, the uplink transmission will fail to receive, and further scheduling and retransmission will be required, which will also result in waste of resources and large service transmission delay, reducing user experience.

Based on this, the embodiments of the present application are described in detail with reference to the following various examples:

Example 1,

The measurement related information of the serving cell includes: the current measurement result of the serving cell.

In the solution provided in this example, the second MCS level is determined according to the current measurement result of the serving cell and the correspondence between the measurement result quantization interval and the MCS level; and then according to the second MCS level and the M available MCSs level, determine to perform uplink transmission, or determine to use the first MCS level to perform uplink transmission.

Combined with Figure 4, the solution provided by this example is described:

Step 41: The terminal device receives the configuration information sent by the network device.

Correspondingly, the network device sends configuration information to the terminal device. The configuration information may be carried by Radio Resource Control (RRC, Radio Resource Control) signaling, or by Medium Access Control (MAC, Medium Access Control) control element (CE, Control Element), or by the physical downlink control channel ( PDCCH, Physical Downlink Control Channel), or carried by the physical downlink shared channel (PDSCH, Physical Downlink Share CHannel), etc., and I will not be exhaustive here.

It should be pointed out that, in the method for obtaining configuration information provided in this example, in addition to the above-mentioned network device directly sending the terminal device, the terminal device (or network device) may also determine the configuration information according to the protocol, or the terminal device may also adopt The configuration information and other methods are determined in an implicit way, which is not exhaustive in this example. That is to say, in this example, step 41 in FIG. 4 is an optional step, no matter whether step 41 is executed or not, as long as the terminal device side can finally obtain the relevant content in the configuration information.

The configuration information may specifically include at least one of the following:

1) N MCS levels (or can be considered as N sets of MCS level parameters), where N is an integer greater than or equal to 1.

2) K-1 serving cell measurement result thresholds, the K-1 serving cell measurement result thresholds are used to determine K serving cell measurement result ranges; the K-1 measurement result thresholds may not be configured by network equipment , which can be preset or determined by the terminal device. Respectively, the thresholds for obtaining K-1 measurement results may be: preset, for example, may be preset according to a protocol, that is, the K-1 measurement result thresholds are preset on both the terminal device and the network device side; Alternatively, it can be determined by the terminal device itself.

The K-1 measurement result threshold values may include at least one of the following: at least one threshold value for the signal quality measurement result, and/or at least one quantization threshold value for the TA value, and/or, for the distance at least one threshold value of .

3) Correspondence between measurement result quantification interval and MCS level.

Among them, the measurement result quantization interval can be K, and the MCS level can be N, that is to say, the corresponding relationship between the measurement result quantization interval and the MCS level can be understood as: K measurement result quantization areas and N MCS levels Correspondence between.

The K measurement result quantization intervals are determined according to the K-1 measurement result thresholds. The channel quality interval is used to describe the channel quality at the moment when the currently dynamically scheduled uplink resources are sent at the terminal device side. The currently dynamically scheduled uplink resource may be a physical uplink shared channel (PUSCH, Physical Uplink Share CHannel).

Correspondingly, the measurement result quantification interval may include one of the following:

Signal quality measurement result quantification interval;

Timing advance (TA, Timing Advanced) value quantization interval;

The quantified interval of the distance between the terminal device and the network device.

Further, there is no overlap between different measurement result quantification intervals.

The measurement result quantification interval may be one of the above three, or a combination of two or three of the above three.

In this example, the corresponding relationship between the measurement result quantization interval and the MCS level is configured by the network device, or, preset, or determined by the terminal device.

Respectively, if it is configured by a network device, the configuration information sent by the network device to the terminal device includes the corresponding relationship between the measurement result quantization interval and the MCS level.

The corresponding relationship between the measurement result quantization interval and the MCS level may be preset, which may be understood as preset according to a protocol.

The corresponding relationship between the quantization interval of the measurement result and the MCS level may also be determined by the terminal device. In this case, it may be implicitly determined by the terminal device, that is, the terminal device may obtain N corresponding MCS levels. The MCS parameter can also obtain K-1 measurement result quantization interval threshold values; the terminal device can set the corresponding relationship between the measurement result quantization interval and the MCS level according to at least one of the following rules:

The interval with a larger signal quality measurement result corresponds to a higher MCS level;

The smaller the TA value, the higher the MCS level corresponding to;

The smaller the distance between the terminal equipment and the network equipment (such as satellite and base station) of the serving cell, the higher the MCS level corresponding to the interval.

In one example, K may be equal to N. That is to say, there can be a one-to-one correspondence between the K measurement result quantization intervals and the N MCS levels;

Or, in an example, K may not be equal to N, that is, there may be no correspondence between the K measurement result quantization intervals and the N MCS levels, that is, K may not be equal to N; for example, there are 3 measurement results Quantization interval, 2 MCS levels, wherein, measurement result quantization interval 1 and 2 correspond to MCS level 1, and measurement result quantization interval 3 corresponds to MCS level 3.

In addition, the configuration information in this example may also include other contents, such as CS-RNTI, the number of uplink HARQ processes reserved for the CG, the CG resource period, etc., time-frequency resources, etc., which are not exhaustive here, nor are they used as a reference Limitation of configuration information.

In this example, the serving cell measurement result interval is used for the current serving cell measurement result of the terminal device.

Step 42: The terminal device measures the serving cell.

The current measurement result of the serving cell includes at least one of the following:

Current signal quality measurement results;

current TA value;

The current distance between the terminal device and the network device corresponding to the serving cell.

Wherein, the signal quality measurement result may include at least one of the following:

CSI (Channel state information, channel state information) measurement results, Reference Signal Received Power (RSRP, Reference Signal Receiving Power), Received Signal Strength Indicator (RSSI, Received Signal Strength Indicator), Reference Signal Received Quality (RSRQ, Reference Signal Receiving Quality) ), Signal to Interference and Noise Ratio (SINR, Signal to Reference Ratio). The manner of obtaining these measurement results may be obtained by measuring the reference signal sent by the network device, which will not be described in detail here.

Wherein, the method for obtaining the current TA value may include: the terminal device determines the latest TA value according to its own location information and ephemeris information, or is referred to as the current TA value.

The acquisition method of the current distance between the terminal device and the network device corresponding to the serving cell may be: according to the terminal device can determine its own position information, then determine the current position of the network device according to the ephemeris information, and determine based on the two positions. The current distance between the end device and the network device.

The location information of the terminal device may be geographic location information corresponding to the current location of the terminal device, such as longitude and latitude (which may further include altitude), etc., or may be the cell identifier corresponding to the location of the terminal, etc., which is not correct in this embodiment. It is exhaustive. The manner in which the terminal device obtains the location information may be obtained through a GPS unit installed by itself, or may be sent by the network device for it. Of course, there are other manners, which are not exhaustive in this embodiment.

It should be understood that in the scenario of acquiring the TA value and the current distance between the terminal device and the network device corresponding to the serving cell, the terminal device needs to have a positioning capability.

Step 43: The terminal device receives the M available MCS levels indicated by the first downlink channel.

Correspondingly, the network device indicates M available MCS levels to the terminal device through the first downlink information.

The first downlink channel may be: a physical downlink control channel (PDCCH, Physical Downlink Control CHannel) for dynamically scheduling uplink transmission.

The M available MCSs indicated by the first downlink channel are included in the N MCS levels included in the configuration information in step 41;

In other words, the N MCS levels at least include the M available MCS levels indicated by the first downlink channel.

Specifically, the manner of indicating the M available MCS levels in the first downlink channel may be: indicating only indices (Index) of the M MCS levels, or indicating through a bitmap (bitmap).

Wherein, the indication method by the index of the MCS level may be, when configuring N MCS level parameters, configure a corresponding index for each MCS level, and further, when the first downlink channel is indicated, only need to carry M An index corresponding to an available MCS level is sufficient.

Alternatively, in the way of indicating through the bitmap, different bits in the bitmap may correspond to different MCS levels in the N MCS levels; if the bit is set to the first value, it means that the MCS level corresponding to the bit is M One of the available MCS levels, if a certain bit is set to the second value, it indicates that the corresponding MCS level is not one of the M available MCS levels. The first value may be 1, the second value may be 0, or vice versa.

Step 44: The terminal device controls the uplink transmission; wherein, the manner of controlling the uplink transmission includes: using the first modulation and decoding scheme MCS level to perform the uplink transmission, or not performing the uplink transmission.

Specifically, the terminal device determines the second MCS level according to the current measurement result of the serving cell and the correspondence between the measurement result quantization interval and the MCS level.

It should also be pointed out here that, in the process of determining the second MCS level according to the aforementioned serving cell measurement results and the corresponding relationship between the measurement result interval and the MCS level, if the serving cell measurement result includes multiple contents, such as the current TA value and the signal quality measurement results;

Then correspondingly, based on the current TA value and the mapping relationship (or correspondence) between the corresponding measurement result interval and the MCS level, the MCS level A can be obtained;

Based on the signal quality measurement results and the mapping relationship (or correspondence) between the corresponding measurement result intervals and the MCS levels, the MCS level B can be obtained.

If the MCS level A is different from the MCS level B, the MCS with the lowest level can be selected as the second MCS; if the two are the same, then one of them can be selected as the second MCS level.

Or, if all of the above three measurement results exist, three MCS levels are obtained according to the mapping relationship (or correspondence) between the measurement result interval and the MCS level; if there are two of the same MCS levels, then the two The same MCS level is used as the second MCS level; if the three MCS levels are different, the lowest MCS level is selected as the second MCS level.

In this example, the method of controlling the uplink transmission is determined, including:

In the case that the second MCS level is not lower than the lowest MCS level among the M available MCS levels, determining a first MCS level based on the second MCS level, and using the first MCS level for uplink transmission;

or,

In a case where the second MCS level is not among the M available MCS levels and the second MCS level is lower than the lowest MCS level among the M available MCS levels, determining not to perform the uplink transmission.

That is to say, if the second MCS determined based on the corresponding relationship between the measurement result quantization interval and the MCS level and the current measurement result is included in the M available MCS levels, or, although not included in the M Within the available MCS levels, but greater than the highest MCS level among the M available MCS levels, the first MCS level is further determined according to the second MCS level, and then the first MCS level is used for uplink transmission.

Conversely, if the second MCS level is not included in the M available MCS levels and is lower than the lowest MCS level among the M available MCS levels, then it may be determined not to perform this uplink transmission (or, it may be determined to ignore skip this time. upstream transmission).

Wherein, determining the first MCS level based on the second MCS level includes:

If the second MCS level is included in the M available MCS levels, the second MCS level is used as the first MCS level;

If the second MCS level is not among the M available MCS levels and the second MCS level is higher than the highest MCS level among the M available MCS levels, then the M available MCS levels The highest MCS level among the levels is taken as the first MCS level.

That is to say, if the second MCS level is included in the M available MCS levels, then the second MCS level is directly adopted and used as the first MCS level for this uplink transmission;

Otherwise, if the second MCS level is not among the M available MCS levels and the second MCS level is higher than the highest MCS level among the M available MCS levels, however, the M available MCS levels The level is the MCS level available to the terminal equipment for the network device. Therefore, the second MCS level is not used for subsequent transmission, but the highest MCS level among the M available MCS levels is directly used as the first MCS level for this uplink transmission.

For example, if the first downlink channel is the PDCCH, then if the M available MCS levels indicated in the PDCCH include the second MCS level selected by the terminal equipment, the terminal equipment uses the MCS level to perform data processing on the uplink resource. transmission;

If the M available MCS levels indicated in the PDCCH do not include the second MCS level selected by the terminal device, then

If the second MCS level selected by the terminal device is higher than the highest MCS of the M available MCS levels indicated by the PDCCH, the terminal device may use the highest MCS of the M available MCS levels indicated by the PDCCH for data transmission;

If the second MCS level selected by the terminal equipment is lower than the lowest MCS of the M available MCS levels indicated by the PDCCH, the terminal equipment skips this uplink transmission.

In general, the solution provided in this example can be understood as: the network configures the correspondence between multiple MCS levels and multiple channel quality parameters. When PDCCH schedules uplink transmission, the base station indicates multiple available MCS parameters. The UE decides which MCS level to use for uplink transmission according to the current channel quality. If there is no satisfied MCS parameter, if the MCS selected by the UE is higher than the highest MCS indicated by the PDCCH, the UE can use the highest MCS indicated by the PDCCH for data transmission; if the MCS selected by the UE is lower than the lowest MCS indicated by the PDCCH, the UE skip this time upstream transmission.

This example will be described in conjunction with Figure 5. Taking the measurement result as the TA value as an example, it is assumed that the network device configures 5 sets of MCS parameters for the terminal device through the configuration information. TA measurement result threshold value, and then determine the corresponding relationship with 5 MCS levels and 5 TA intervals;

Before the first uplink transmission, the terminal device receives that the network device indicates through the first downlink channel (that is, the PDCCH indicating the uplink scheduling) that the M available MCS levels this time are MCS2 and MCS3; ) moment, according to the corresponding relationship, select MCS3 according to the TA value corresponding to this moment, correspondingly, the network device (satellite, which can be referred to as the gNB in the figure) receives the information transmitted on the PUSCH using MCS3 at the T1-receive (receiving) moment .

It should be understood that before different times of uplink transmission, it may receive a message from the network device to indicate the M available MCS levels in this uplink transmission, and the M available MCS levels corresponding to different times are different (including There are different numbers M, and/or different MCS levels, etc.); of course, it is also possible that if the M CS levels available for this uplink transmission and the previous uplink transmission are the same, the network equipment may not need to indicate each time, then the terminal By default, the device can use the M available MCS levels received and saved in the previous processing to perform this processing; of course, it can also be instructed each time.

Referring to FIG. 5 again, before the second uplink transmission, the terminal device receives that the network device indicates through the first downlink channel (that is, the PDCCH indicating uplink scheduling) that the M available MCS levels this time are MCS2 and MCS3; The T2-send time is different from the TA value at the T1-send time. The MCS1 corresponding to the TA value this time, but MCS1 is not within the M available MCS levels (MCS2, MCS3) indicated this time, but MCS1 is greater than MCS2, so , this uplink transmission can use the highest MCS level among the M available MCS levels, that is, MCS2, as the first MCS level for uplink transmission, which will not be repeated;

Before the third uplink transmission, the terminal device receives that the network device indicates through the first downlink channel (that is, the PDCCH indicating uplink scheduling) that the M available MCS levels this time are MCS3 and MCS4; TA changes at time T3-send , select MCS5 according to the TA value corresponding to the T3-send moment, but MCS5 is no longer among the M available MCS levels indicated this time, and is lower than the lowest MCS level (MCS4), so based on the solution provided by this example, determine This uplink transmission is not performed, that is, skip this uplink transmission.

In this example, selecting the most suitable MCS level among the indicated multiple available MCS levels according to different channel qualities can maximize the use of the channel quality to transmit as much data as possible. The terminal device only needs to select the MCS level according to the current channel quality, and the solution is simple and easy to implement. Meanwhile, a limited number of available MCS levels are indicated in the first downlink channel, which is beneficial to network implementation, and the network side only needs to blindly detect the limited number of MCS levels on the uplink resources.

Example 2,

The measurement-related information of the serving cell includes: the current measurement result of the serving cell and the change trend of the measurement result of the serving cell.

An implementation process of this example, as shown in Figure 6, is as follows:

Step 61: The terminal device receives the configuration information sent by the network device.

Step 62: The terminal device performs measurement of the serving cell.

Step 63: The terminal device receives the M available MCS levels indicated by the first downlink channel.

The above steps 61 to 63 are the same as the steps 41 to 43 in Example 1, and thus will not be repeated here.

Step 64: The terminal device determines to use the first MCS level to perform uplink transmission or not to perform uplink transmission according to the currently measured serving cell measurement result and the change trend of the measurement result.

In this example, the change trend of the measurement result of the serving cell is a predicted change trend relative to the current measurement result of the serving cell.

The acquisition and specific content of the current measurement result of the serving cell are the same as in Example 1, and are not repeated here.

The change trend of the measurement result includes: a first change trend, or a second change trend;

The first change trend includes at least one of the following: the TA value becomes smaller; the signal quality measurement result becomes larger; the distance between the terminal device and the network device corresponding to the serving cell becomes smaller;

The second change trend includes at least one of the following: the TA value becomes larger; the signal quality measurement result becomes smaller; and the distance between the terminal device and the network device corresponding to the serving cell becomes larger.

The above-mentioned first change trend can be understood as the measurement result getting better, and the second change trend can be understood as the measurement result getting worse.

The content included in the foregoing signal quality measurement result and the related description of the acquisition method are the same as those in Example 1, and are not repeated here.

That is to say, the terminal device needs to obtain the future change trend of the signal quality measurement result. Regarding the future change trend, the future time can be determined according to the time when the uplink transmission to be sent arrives at the network device according to the prediction.

Predicting the time when the uplink transmission to be sent arrives at the network device can be calculated by the network device receiving the uplink transmission through information such as the current location information of the terminal device, the motion trajectory of the terminal device, and the ephemeris information of the network device in the serving cell. The time (or the moment when the upstream transmission arrives at the network device).

The prediction of the change trend of the measurement result may include at least one of the following: according to the current TA value corresponding to the current time n (or the TA value at the sending time of the uplink transmission), it is assumed to be TA1; The time when the uplink transmission to be sent is predicted to arrive at the network device is time m, and the predicted TA value of this time m is TA2, and the change trend can be determined as the first change trend or the second change trend according to the difference between the two.

Alternatively, the change of the signal quality measurement result can also be inferred according to the change of the TA value, for example, the smaller the TA value is, the larger the signal quality measurement result is.

Or, it is also possible to first obtain the distance between the current terminal device and the network device according to the position of the current terminal device and the position of the current network device (satellite) determined based on the satellite ephemeris; The trajectory and the motion trajectory of the satellite, predict the predicted position of the terminal device and the predicted position of the satellite in the future period of time (that is, the time when the uplink transmission reaches the network device), and calculate the predicted position of the terminal device according to the predicted position of the terminal device and the predicted position of the satellite. The predicted distance from the satellite; based on the predicted distance and the distance between the current terminal device and the network device, determine that the change trend of the measurement result is the first change trend or the second change trend (that is, determine that the change trend of the measurement result is the change trend. better or worse).

Based on the above, the terminal device determines to use the first MCS level for uplink transmission, or not to execute this secondary upstream transmission. Specifically, for different scenarios of the first change trend or the second change trend, the following processing may be included respectively:

In the first scenario:

If the change trend of the measurement result of the serving cell is the first change trend, the corresponding third MCS level is determined according to the current measurement result of the serving cell and the correspondence between the measurement result quantization interval and the MCS level.

That is to say, according to the movement trajectory of the UE and the movement trajectory of the satellite, if the UE determines that the channel quality will become better in the future, the UE selects the corresponding MCS according to the mapping relationship between the current channel quality and the channel quality interval configured by the network to the MCS level. level (ie the third MCS level).

Correspondingly, in this scenario, the method for controlling the uplink transmission is determined, including:

In the case that the third MCS level is not lower than the lowest MCS level among the M available MCS levels, determining a first MCS level based on the third MCS level, and using the first MCS level for uplink transmission;

or,

In a case where the third MCS level is not among the M available MCS levels and the third MCS level is lower than the lowest MCS level among the M available MCS levels, determining not to perform the uplink transmission.

That is to say, if the third MCS level is within the M available MCS levels indicated by the first downlink channel this time, or if the third MCS level is not among the M MCS levels but is greater than the highest MCS level, the terminal The device may determine to perform the current uplink transmission, and may determine the first MCS level to be adopted this time based on the third MCS level; otherwise, the terminal device may determine not to perform the current uplink transmission.

Still further, the determining the first MCS level based on the third MCS level includes:

If the third MCS level is one of M available MCS levels, the third MCS level is used as the first MCS level;

If the third MCS level is not one of the M available MCS levels and the third MCS level is higher than the highest MCS level of the M available MCS levels, then the M available MCS levels are of the highest MCS level as the first MCS level.

That is to say, if the M available MCS levels indicated in the PDCCH include the third MCS level selected by the terminal device, the terminal device uses the third MCS level (taking it as the first MCS level) to perform on the uplink resource data transmission.

If the M MCS levels indicated in the PDCCH do not include the third MCS level selected by the terminal device, one of the following may be performed:

1. If the third MCS level selected by the terminal device is higher than the highest MCS of the M available MCS levels indicated by the PDCCH, the terminal device can use the highest MCS indicated by the PDCCH for data transmission, that is, the highest MCS level is used as the first MCS level. Uplink transmission at the MCS level.

2. If the third MCS level selected by the terminal device is lower than the lowest MCS of the M available MCS levels indicated by the PDCCH, the terminal device skips this uplink transmission.

3. If the third MCS level is not among the M available MCS levels, and the third MCS level is lower than the lowest MCS level among the M available MCS levels, if the third MCS level is If the M available MCS levels indicated in the downlink channel include the lowest MCS level supported by the system, the lowest MCS level supported by the system is taken as the first MCS level, and the first MCS level is used for uplink transmission.

That is, in this example, the M available MCS levels indicated by the first downlink channel may include the lowest MCS level among the N MCS levels;

Then it can be understood that in this transmission, the system can support the terminal equipment to use the lowest MCS level for uplink transmission, so, if the third MCS level determined based on the foregoing method is not among the M available MCS levels, and the third MCS level The MCS level is lower than the lowest MCS level among the M available MCS levels. In this case, uplink transmission can be maintained, and the lowest MCS level supported by the system included in the M available MCS levels is used as the first MCS level. This uplink transmission is performed at the MCS level.

For example, if the PDCCH indicates the lowest MCS level supported by the system, which ensures that the UE can transmit, the UE does not need to skip uplink transmission at this time, and uses the lowest MCS level supported by the system for transmission.

In the second scenario:

If the change trend of the measurement result of the serving cell is the second change trend, it is determined not to perform the uplink transmission. That is, if the UE determines that the measurement result of the serving cell will become worse in the future, the UE skips this uplink transmission.

In this case, it may be specified that as long as the change trend of the measurement result of the serving cell is the second change trend, it is directly determined not to perform the current uplink transmission.

Or, if the change trend of the measurement result of the serving cell is the second change trend, and considering whether the M available MCS levels indicated by the first downlink channel include the lowest MCS level supported by the system, the following processing methods may be adopted. :

If the change trend of the measurement result of the serving cell is the second change trend, and the M available MCS levels indicated in the first downlink channel include the lowest MCS level supported by the system, the system supports the lowest MCS level. The lowest MCS level is used as the first MCS level, and the first MCS level is used for uplink transmission.

or,

If the change trend of the measurement result of the serving cell is the second change trend, and the M available MCS levels indicated in the first downlink channel do not include the lowest MCS level supported by the system, it is determined not to perform the upstream transmission.

That is to say, if the M available MCS levels indicated in the PDCCH include the lowest MCS level supported by the system, so as to ensure that the terminal device can transmit, the terminal device does not need skip uplink transmission at this time, and uses the lowest MCS level supported by the system. MCS level for transmission.

In an example, the measurement result of the serving cell becomes better (the case of deterioration is the opposite), including at least one of the following: the TA value becomes smaller; the CSI measurement value becomes larger; and the distance from the terminal device to the satellite becomes smaller.

To sum up, the solution provided in this example can be understood as: the network configures the correspondence between multiple MCS levels and multiple channel quality parameters. When PDCCH schedules uplink transmission, the base station indicates multiple available MCS parameters. The UE decides which MCS level to use for uplink transmission according to the current channel quality and the future change trend of the channel quality. If no MCS parameters are met, the UE skips this uplink transmission, or transmits with the lowest MCS level supported by the system (if the lowest MCS level is indicated in the PDCCH).

This example will be described in conjunction with Figure 7. Taking the measurement result as the TA value as an example, it is assumed that the network device configures 5 sets of MCS parameters for the terminal device through the configuration information. MCS level, wherein the default MCS level can be understood as the lowest level of MCS supported by the system; and, configure different TA measurement result thresholds, and then determine the correspondence between 6 MCS levels and 5 TA intervals;

Before the first uplink transmission, the terminal device receives that the network device indicates through the first downlink channel (that is, the PDCCH indicating the uplink scheduling) that the M available MCS levels this time are MCS2 and MCS3; ) time, the predicted TA value becomes smaller (that is, the first change trend), then according to the corresponding relationship, select MCS3 according to the TA value corresponding to this time. - the receive moment to receive information transmitted on the PUSCH using MCS3.

It should be understood that before different times of uplink transmission, it may receive a message from the network device to indicate the M available MCS levels in this uplink transmission, and the M available MCS levels corresponding to different times are different (including There are different numbers M, and/or different MCS levels, etc.); of course, it is also possible that if the M CS levels available for this uplink transmission and the previous uplink transmission are the same, the network equipment may not need to indicate each time, then the terminal By default, the device may use the M available MCS levels received and saved last time to perform this processing, and of course, it may give an instruction each time.

Referring to FIG. 7 again, before the second uplink transmission, the terminal device receives that the network device indicates through the first downlink channel (that is, the PDCCH indicating uplink scheduling) that the M available MCS levels this time are MCS2 and MCS3; The predicted TA value becomes smaller at the time of T2-send (that is, the first change trend), and the MCS1 corresponding to the current TA value at the time of T2-send, but MCS1 is not among the M available MCS levels (MCS2, MCS3) indicated this time. However, MCS1 is greater than MCS2. Therefore, the highest MCS level among the M available MCS levels, that is, MCS2, may be used as the first MCS level for uplink transmission this time.

Referring to FIG. 7 again, before the third uplink transmission, the terminal device receives that the network device indicates through the first downlink channel (that is, the PDCCH indicating uplink scheduling) that the M available MCS levels this time are MCS1 and default. MCS (that is, the lowest MCS level supported by the system); it is predicted that the TA value becomes larger at the time of T3-send (that is, the second change trend), and the system indication contained in the M available MCS levels indicated in the first downlink channel can be used The lowest MCS level, that is, the default MCS for this uplink transmission.

In this example, the most fundamental channel quality that determines whether the uplink transmission can be received correctly is actually the channel quality when the uplink transmission is received. If the future change trend of the channel quality becomes better, the MCS level corresponding to the current measurement result is applicable to the receiving moment of the uplink transmission. If the future trend is to become worse, the terminal device cannot judge how bad it is. If the first downlink channel does not indicate the lowest MCS level supported by the system, the terminal device should skip the uplink transmission because the base station does not support this time. Uplink transmissions are fully subtracted with the lowest MCS level. In this example, the terminal device only needs to predict the change trend, and does not need to predict the specific value, and the implementation is simple.

Example 3,

The measurement-related information of the serving cell includes: an estimated measurement result of the serving cell at a first moment; wherein, the first moment is: an expected reception moment of uplink transmission data in the serving cell.

A specific implementation process of this example, as shown in FIG. 8 , may include:

Step 81: The terminal device receives the configuration information sent by the network device.

The only difference from Example 1 is that, in this example, the channel quality interval is used to describe the channel quality when the currently dynamically scheduled uplink resources are received at the network side. Others are the same as the specific description of step 41, and are not repeated here.

Steps 82 to 83 are the same as steps 42 to 43 of Example 1, and are not repeated here.

Step 84: The terminal device predicts the expected measurement result of the serving cell at the first moment according to the location information, the motion track and the ephemeris information of the network device.

That is, the terminal device predicts the channel quality when the uplink resource transmission is received on the network side according to its own motion track and the motion track of the satellite.

The estimated measurement result of the serving cell at the first moment includes at least one of the following:

The expected signal quality measurement result of the serving cell at the first moment;

the estimated TA value of the serving cell at the first moment;

At the first moment, the estimated distance between the terminal device and the network device corresponding to the serving cell.

Regarding the first time, it can be considered as the time when the current uplink transmission is expected to be received at the network device side, or can be understood as the time when the current uplink transmission reaches the network device.

The method of the estimated TA value of the serving cell at the first moment may be: the terminal device calculates the moment when the network device receives the uplink transmission according to the ephemeris information, and uses the position of the network device at this moment and the predicted position of the terminal device Calculate the TA value between the terminal device and the network device.

Another method for predicting the TA value can also be determined according to a preset adjustment value. For example, the current TA value can correspond to a preset adjustment value range and the time length corresponding to the adjustment value. Based on the predicted uplink transmission reaching the network device. time, based on the time difference between the time and the current time, and the adjustment value determined above, to calculate the expected TA value, that is, the current TA value plus a Δ (adjustment value).

The estimated distance between the terminal device and the network device corresponding to the serving cell at the first moment may include:

According to the current position and motion trajectory of the terminal equipment, the estimated position of the terminal equipment at the first moment can be calculated; the estimated position of the network equipment at the first moment can be calculated according to the ephemeris information of the satellite; Estimated distance between network devices.

The predicted manner of the predicted signal quality measurement result of the serving cell at the first moment may include:

The terminal device sends the distance between the terminal device and the network device corresponding to the serving cell at the moment of uplink transmission, and the distance between the terminal device and the network device corresponding to the serving cell at the first moment. distance, determine the first proportional relationship;

The terminal device calculates the expected signal quality measurement result of the serving cell at the first moment according to the first proportional relationship and the CSI measurement result at the time of sending the uplink transmission.

The first proportional relationship may be the distance between the terminal device and the network device corresponding to the serving cell at the time of uplink transmission sending, and the correspondence between the terminal device and the serving cell at the first time The inverse ratio of the ratio of the distances between network devices;

Alternatively, it may be the square value of the distance between the terminal device and the network device corresponding to the serving cell at the time of uplink transmission transmission, and the difference between the terminal device and the network device corresponding to the serving cell at the first moment The inverse of the ratio of the squared values of the distances.

For example, an example of a predicted serving cell measurement result may include at least one of the following:

The terminal device calculates the time when the network side receives the CG transmission according to the ephemeris information, and calculates the distance between the terminal device and the satellite base station by using the position of the satellite at this time and the predicted position of the terminal device;

The terminal device calculates the time when the network side receives the CG transmission according to the ephemeris information, and uses the position of the satellite at this time and the predicted position of the terminal device to calculate the TA between the terminal device and the satellite base station;

The terminal device proportionally scales the CSI measurement value at the CG transmission time according to the distance between the terminal device and the satellite base station at the CG transmission time and the predicted CG reception time, as the predicted CSI measurement value at the CG reception time. The proportional scaling can be inversely proportional to the square of the distance.

Step 85: The terminal device determines to use the first MCS level to perform uplink transmission or not to perform uplink transmission according to the expected measurement result of the serving cell at the first moment and the change trend of the measurement result.

In general, the above two steps include the following processing: the terminal equipment predicts the channel quality of this uplink resource transmission when it is received on the network side according to its own motion trajectory and the motion trajectory of the satellite, and the terminal equipment predicts the channel quality when the network side receives The quality and the mapping relationship between the channel quality interval configured by the network and the MCS level, select the corresponding MCS level, and then determine whether to use the first MCS level for uplink transmission or not to perform uplink transmission.

Specifically, in this example, the process of selecting the corresponding MCS level may include:

The terminal device determines a corresponding fourth MCS level according to the expected measurement result of the serving cell at the first moment and the correspondence between the measurement result quantization interval and the MCS level.

In this example, determining that the method for controlling uplink transmission is to use the first MCS level to perform uplink transmission, or to not perform uplink transmission, may include:

In the case that the fourth MCS level is not lower than the lowest MCS level among the M available MCS levels, determining a first MCS level based on the fourth MCS level, and using the first MCS level for uplink transmission;

or,

In a case where the fourth MCS level is not among the M available MCS levels and the fourth MCS level is lower than the lowest MCS level among the M available MCS levels, determining not to perform the uplink transmission.

That is, if the fourth MCS level is within the M available MCS levels indicated by the first downlink channel this time, or if the fourth MCS level is not among the M MCS levels but is greater than the highest MCS level, the terminal The device may determine to perform the current uplink transmission, and may determine the first MCS level to be adopted this time based on the fourth MCS level; otherwise, the terminal device may determine not to perform the current uplink transmission.

The determining of the first MCS level based on the fourth MCS level includes:

If the fourth MCS level is included in the M available MCS levels, the fourth MCS level is used as the first MCS level;

If the fourth MCS level is not among the M available MCS levels and the fourth MCS level is higher than the highest MCS level among the M available MCS levels, then the M available MCS levels The highest MCS level among the levels is taken as the first MCS level.

That is, if the M available MCS levels indicated in the PDCCH (first downlink channel) include the fourth MCS level selected by the terminal device, then the terminal device uses the fourth MCS level (taking it as the first MCS level) Data transmission is performed on the uplink resource.

If the M available MCS levels indicated in the PDCCH (first downlink channel) do not include the fourth MCS level selected by the terminal device, perform one of the following:

1. If the fourth MCS level selected by the terminal equipment is higher than the highest MCS among the M available MCS levels indicated in the PDCCH (first downlink channel), the terminal equipment can use the highest MCS indicated by the PDCCH for data transmission;

2. If the fourth MCS level selected by the terminal equipment is lower than the lowest MCS among the M available MCS levels indicated in the PDCCH (first downlink channel), the terminal equipment skips this uplink transmission.

For example, in the solution provided in this example, the network configures the correspondence between multiple MCS levels and multiple channel quality parameters. When PDCCH schedules uplink transmission, the base station indicates multiple available MCS parameters. The UE predicts the channel quality when the network side receives the uplink transmission to decide which MCS level to use for uplink transmission. If there is no satisfied MCS parameter, if the MCS selected by the UE is higher than the highest MCS indicated by the PDCCH, the UE can use the highest MCS indicated by the PDCCH for data transmission; if the MCS selected by the UE is lower than the lowest MCS indicated by the PDCCH, the UE skip this time upstream transmission.

This example will be described with reference to Figure 9. Taking the measurement result as the TA value as an example, it is assumed that the network device configures 5 sets of MCS parameters for the terminal device through the configuration information. TA measurement result threshold value, and then determine the corresponding relationship between 5 MCS levels and 5 TA intervals;

Before the first uplink transmission, the terminal device receives that the network device indicates through the first downlink channel (that is, the PDCCH indicating the uplink scheduling) that the M available MCS levels this time are MCS2 and MCS3; ) time to predict the TA value of T1-Receive at the receiving time (that is, the first time) of the network device for this uplink transmission, and select MCS3 according to the predicted TA value and the corresponding relationship. Correspondingly, the network device (satellite, which can be called a map The gNB in T1-receive (receive) time receives the information transmitted on the PUSCH using MCS3.

It should be understood that before different times of uplink transmission, it may receive a message from the network device to indicate the M available MCS levels in this uplink transmission, and the M available MCS levels corresponding to different times are different (including There are different numbers M, and/or different MCS levels, etc.); of course, it is also possible that if the M CS levels available for this uplink transmission and the previous uplink transmission are the same, the network equipment may not need to indicate each time, then the terminal The device may by default use the M available MCS levels received and saved in the previous processing to perform this processing, and of course, it may also be instructed each time.

Referring to FIG. 9 again, before the second uplink transmission, the terminal device receives that the network device indicates through the first downlink channel (that is, the PDCCH indicating uplink scheduling) that the M available MCS levels this time are MCS2 and MCS3; T2-send time predicts the TA value of T2-Receive at the receiving time (that is, the first time) of the network device for this uplink transmission, and selects MCS1 according to the predicted TA value and the corresponding relationship, but MCS1 is not in the M indicated this time. It is within the available MCS levels (MCS2, MCS3), but MCS1 is greater than MCS2. Therefore, this uplink transmission can use the highest MCS level among the M available MCS levels, that is, MCS2, as the first MCS level for uplink transmission.

Referring to FIG. 9 again, before the third uplink transmission, the terminal device receives that the network device indicates through the first downlink channel (that is, the PDCCH indicating uplink scheduling) that the M available MCS levels this time are MCS1 and default. MCS (that is, the lowest MCS level supported by the system); T3-send time predicts the TA value of T3-Receive at the receiving time (that is, the first time) of this uplink transmission at the network device, and selects it according to the predicted TA value and the corresponding relationship MCS5, but MCS5 is not included in the M available MCS levels indicated this time, so this uplink transmission is not performed (that is, Skip this uplink transmission shown in the figure).

In this example, the most fundamental channel quality that determines whether the uplink transmission can be correctly received is actually the channel quality when the uplink transmission is received. According to the ephemeris information, the terminal equipment predicts that the channel quality when receiving the uplink transmission network is closer to the most real receiving channel condition, and realizes more accurate selection and use of the MCS level.

It can be seen that by adopting the above scheme, in the process of controlling the uplink transmission by the terminal equipment, the most suitable MCS level is selected according to the measurement results of different serving cells of the terminal equipment, and then the first MCS level is used for uplink transmission; or the uplink transmission is not performed; transmission. In this way, the uplink transmission of the terminal equipment can be accurately controlled, and the most suitable MCS level can be determined in combination with the measurement-related information of the serving cell, thereby avoiding the problems of reduced transmission efficiency and failure of uplink transmission and reception.

An embodiment of the present invention provides a terminal device, as shown in FIG. 10 , including:

the first communication unit 91, performing uplink transmission;

The first processing unit 92 controls the uplink transmission; wherein, the method for controlling the uplink transmission includes: using the first modulation and decoding scheme MCS level to perform the uplink transmission, or not performing the uplink transmission;

Correspondingly, an embodiment of the present invention further provides a network device, as shown in FIG. 11 , including:

A second communication unit 1001, receiving uplink transmission using the first modulation and decoding scheme MCS level transmission;

In this embodiment, the uplink transmission may be a transmission performed on a configuration grant (CG) resource. The network device may be a satellite in an NTN scenario.

The embodiments of the present application are described in detail with reference to the following various examples:

Example 1,

The first communication unit 91 of the terminal device receives the configuration information sent by the network device.

Correspondingly, the second communication unit 1001 of the network device sends configuration information to the terminal device. The configuration information may be carried by the RRC, or by the MAC CE, or by the PDCCH, or by the PDSCH, etc., which are not exhaustive here.

It should be pointed out that, in the method for obtaining configuration information provided in this example, in addition to the above-mentioned network device directly sending the terminal device, the terminal device (or network device) may also determine the configuration information according to the protocol, or the terminal device may also adopt The configuration information and other methods are determined in an implicit way, which is not exhaustive in this example.

The configuration information in this step may specifically include at least one of the following:

2) K-1 serving cell measurement result thresholds, the K-1 serving cell measurement result thresholds are used to determine K serving cell measurement result ranges; the K-1 measurement result thresholds may not be configured by network equipment , which can be preset or determined by the terminal device.

Respectively, the thresholds for obtaining K-1 measurement results may be: preset, for example, may be preset according to a protocol, that is, the K-1 measurement result thresholds are preset on both the terminal device and the network device side; Alternatively, it can be determined by the terminal device itself.

Quantification interval of CSI measurement results;

TA value quantification interval;

The first communication unit 91 of the terminal equipment performs serving cell measurement.

Current signal quality measurement results;

current TA value;

The signal quality measurement results may include: CSI measurement results, Reference Signal Received Power (RSRP, Reference Signal Receiving Power), Received Signal Strength Indicator (RSSI, Received Signal Strength Indicator), Reference Signal Received Quality (RSRQ, Reference Signal At least one of Receiving Quality) and Signal to Interference and Noise Ratio (SINR, Signal to Reference Ratio). The manner of obtaining these measurement results may be obtained by measuring the reference signal sent by the network device, which will not be described in detail here.

The first communication unit 91 of the terminal device receives the M available MCS levels indicated by the first downlink channel.

Correspondingly, the second communication unit 1001 of the network device indicates M available MCS levels to the terminal device through the first downlink information.

The M available MCSs indicated by the first downlink channel are included in the N MCS levels included in the configuration information; in other words, the N MCS levels at least include the MCS levels indicated by the first downlink channel. The M available MCS levels.

The first processing unit 92 of the terminal device controls the uplink transmission; wherein, the manner in which the first processing unit 92 of the terminal device controls the uplink transmission includes: using the first modulation and decoding scheme MCS level to perform the uplink transmission, or , no uplink transmission is performed.

Specifically, the first processing unit 92 of the terminal device determines the second MCS level according to the current measurement result of the serving cell and the correspondence between the measurement result quantization interval and the MCS level.

In this example, when the second MCS level is not lower than the lowest MCS level among the M available MCS levels, the first processing unit 92 of the terminal device determines the first MCS level based on the second MCS level an MCS level, the first communication unit 91 uses the first MCS level for uplink transmission;

or,

The first processing unit 92 of the terminal device is not in the M available MCS levels at the second MCS level, and the second MCS level is lower than the lowest MCS level among the M available MCS levels In the case of , it is determined not to perform the uplink transmission.

If the second MCS level is included in the M available MCS levels, the first processing unit 92 of the terminal device uses the second MCS level as the first MCS level;

Example 2,

The first communication unit 91 of the terminal device receives the configuration information sent by the network device. It should be pointed out that, in the method for obtaining configuration information provided in this example, in addition to the above-mentioned network device directly sending the terminal device, the terminal device (or network device) may also determine the configuration information according to the protocol, or the terminal device may also adopt The configuration information and other methods are determined in an implicit way, which is not exhaustive in this example.

The first communication unit 91 of the terminal device performs serving cell measurement.

The above processing is the same as the detailed description of the corresponding processing in Example 1, and will not be repeated.

The first processing unit 92 of the terminal device determines to use the first MCS level to perform uplink transmission or not to perform uplink transmission according to the currently measured serving cell measurement result and the change trend of the measurement result.

In the first scenario:

If the change trend of the measurement result of the serving cell is the first change trend, the first processing unit 92 of the terminal device will use the current measurement result of the serving cell and the correspondence between the measurement result quantization interval and the MCS level. relationship to determine the corresponding third MCS level.

The first processing unit 92 of the terminal device determines a first MCS level based on the third MCS level under the condition that the third MCS level is not lower than the lowest MCS level among the M available MCS levels, determine that the first communication unit 91 uses the first MCS level to perform uplink transmission;

or,

The first processing unit 92 of the terminal device is not in the M available MCS levels at the third MCS level, and the third MCS level is lower than the lowest MCS level among the M available MCS levels In the case of , it is determined not to perform the uplink transmission.

If the third MCS level is one of M available MCS levels, the first processing unit 92 of the terminal device uses the third MCS level as the first MCS level;

The first processing unit 92 of the terminal device is not in the M available MCS levels at the third MCS level, and the third MCS level is lower than the lowest MCS level among the M available MCS levels In the case of , if the M available MCS levels indicated in the first downlink channel include the lowest MCS level supported by the system, the lowest MCS level supported by the system is taken as the first MCS level, and the first MCS level is adopted. level for upstream transmission.

In the second scenario:

If the change trend of the measurement result of the serving cell is the second change trend, the first processing unit 92 of the terminal device determines not to perform the uplink transmission. That is, if the UE determines that the measurement result of the serving cell will become worse in the future, the UE skips this uplink transmission.

Alternatively, if the M available MCS levels indicated by the first downlink channel include the lowest MCS level supported by the system, the first processing unit 92 of the terminal device may adopt the following processing methods:

If the change trend of the measurement result of the serving cell is the second change trend, and the M available MCS levels indicated in the first downlink channel include the lowest MCS level supported by the system, the system supports the lowest MCS level. The lowest MCS level is used as the first MCS level, and the first communication unit 91 uses the first MCS level for uplink transmission.

or,

Example 3,

The measurement of the first communication unit 91 of the terminal device and the process of receiving the first downlink channel are the same as those in the foregoing example, and will not be repeated here.

The first processing unit 92 of the terminal device predicts the expected measurement result of the serving cell at the first moment according to the position information, the motion track and the ephemeris information of the network device.

the estimated TA value of the serving cell at the first moment;

The method of the estimated TA value of the serving cell at the first moment may be: the first processing unit 92 of the terminal device calculates the moment when the network device receives the uplink transmission according to the ephemeris information, and uses the position of the network device at this moment. , and the predicted location of the terminal device to calculate the TA value between the terminal device and the network device.

Another method for predicting the TA value can also be determined according to a preset adjustment value. For example, the current TA value may correspond to a preset adjustment value range and a time length corresponding to the adjustment value. Based on the predicted uplink transmission reaching the network device. time, based on the time difference between the time and the current time, and the adjustment value determined above, to calculate the expected TA value, that is, add a Δ (adjustment value) to the current TA value.

The first processing unit 92 of the terminal equipment calculates the estimated position of the terminal equipment at the first moment according to the current position and the motion track of the terminal equipment; can calculate the estimated position of the network equipment at the first moment according to the ephemeris information of the satellite; Two estimated positions, the estimated distance between the terminal device and the network device can be determined.

The first processing unit 92 of the terminal device sends the distance between the terminal device and the network device corresponding to the serving cell at the time of uplink transmission transmission, and the correspondence between the terminal device and the serving cell at the first time The distance between the network devices to determine the first proportional relationship;

Calculate the expected signal quality measurement result of the serving cell at the first moment according to the first proportional relationship and the CSI measurement result at the time of sending the uplink transmission.

The first proportional relationship may be the distance between the terminal device and the network device corresponding to the serving cell at the time of sending uplink transmission, and the correspondence between the terminal device and the serving cell at the first time The inverse ratio of the ratio of the distances between network devices;

Alternatively, it may be the square value of the distance between the terminal device and the network device corresponding to the serving cell at the time of uplink transmission transmission, and the difference between the terminal device and the network device corresponding to the serving cell at the first moment. The inverse of the ratio of the squared values of the distances.

The first processing unit 92 of the terminal device determines to use the first MCS level to perform uplink transmission or not to perform uplink transmission according to the expected measurement result of the serving cell at the first moment and the change trend of the measurement result.

The first processing unit 92 of the terminal device determines the corresponding fourth MCS level according to the expected measurement result of the serving cell at the first moment and the correspondence between the measurement result quantization interval and the MCS level.

In this example, determining that the method for controlling uplink transmission is to use the first MCS level to perform uplink transmission or not to perform uplink transmission may include:

The first processing unit 92 of the terminal device determines a first MCS level based on the fourth MCS level under the condition that the fourth MCS level is not lower than the lowest MCS level among the M available MCS levels, The first communication unit 91 uses the first MCS level to perform uplink transmission;

or,

If the M available MCS levels include the fourth MCS level, the first processing unit 92 of the terminal device uses the fourth MCS level as the first MCS level;

The first processing unit 92 of the terminal device, if the fourth MCS level is not among the M available MCS levels, and the fourth MCS level is higher than the highest MCS level among the M available MCS levels , the highest MCS level among the M available MCS levels is used as the first MCS level.

FIG. 12 is a schematic structural diagram of a communication device 1400 according to an embodiment of the present invention. The communication device in this embodiment may specifically be a terminal device or a network device in the foregoing embodiments. The communication device 1400 shown in FIG. 12 includes a processor 1410, and the processor 1410 can call and run a computer program from a memory to implement the method in the embodiment of the present invention.

Optionally, as shown in FIG. 12 , the communication device 1400 may further include a memory 1420 . The processor 1410 may call and run a computer program from the memory 1420 to implement the method in the embodiment of the present invention.

The memory 1420 may be a separate device independent of the processor 1410, or may be integrated in the processor 1410.

Optionally, as shown in FIG. 12 , the communication device 1400 may further include a transceiver 1430, and the processor 1410 may control the transceiver 1430 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by the device. Among them, the transceiver 1430 may include a transmitter and a receiver. The transceiver 1430 may further include an antenna, and the number of the antenna may be one or more. Optionally, the communication device 1400 may specifically be a corresponding process implemented by the terminal device or the network device in the embodiment of the present invention, which is not repeated here for brevity.

FIG. 13 is a schematic structural diagram of a chip according to an embodiment of the present invention. The chip 1500 shown in FIG. 13 includes a processor 1510, and the processor 1510 can call and run a computer program from a memory to implement the method in the embodiment of the present invention.

Optionally, as shown in FIG. 13 , the chip 1500 may further include a memory 1520 . The processor 1510 may call and run a computer program from the memory 1520 to implement the method in the embodiment of the present invention. The memory 1520 may be a separate device independent of the processor 1510, or may be integrated in the processor 1510.

Optionally, the chip 1500 may further include an input interface 1530 . The processor 1510 can control the input interface 1530 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips. Optionally, the chip 1500 may further include an output interface 1540 . The processor 1510 may control the output interface 1540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

Optionally, the chip may be applied to a corresponding process implemented by a terminal device or a network device in this embodiment of the present invention, which is not repeated here for brevity. It should be understood that the chip mentioned in the embodiments of the present invention may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-chip, or the like.

It should be understood that the processor in this embodiment of the present invention may be an integrated circuit chip, which has the capability of processing signals. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.

It can be understood that the memory in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above-mentioned memory is an example but not a limitative description. For example, the memory in this embodiment of the present invention may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, memory in embodiments of the present invention is intended to include, but not be limited to, these and any other suitable types of memory.

FIG. 14 is a schematic block diagram of a communication system 1600 provided by an embodiment of the present application. As shown in FIG. 14 , the communication system 1600 includes a network device 1610 and a terminal device 1620 .

The network device 1610 can be used to implement the corresponding functions implemented by the communication device in the above method, and the terminal device 1620 can be used to implement the corresponding functions implemented by the terminal in the above method. For brevity, details are not repeated here.

Embodiments of the present invention further provide a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium can be applied to a network device, a satellite, or a terminal device in the embodiment of the present invention, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present invention, For brevity, details are not repeated here.

Embodiments of the present invention also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to a network device, a satellite, or a terminal device in the embodiment of the present invention, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiment of the present invention, in order to It is concise and will not be repeated here.

The embodiment of the present invention also provides a computer program.

Optionally, the computer program can be applied to a network device, a satellite, or a terminal device in the embodiment of the present invention, and when the computer program runs on a computer, the computer executes the methods implemented by the network device in each method of the embodiment of the present invention. For the sake of brevity, the corresponding process is not repeated here.

In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods may be implemented in other manners. The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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

Claims

A method of data transmission, comprising:

The terminal equipment controls the uplink transmission; wherein, the manner of controlling the uplink transmission includes: using the first modulation and decoding scheme MCS level to perform the uplink transmission, or not performing the uplink transmission;

Wherein, the first MCS level is determined according to at least one of the following:

Measurement related information of the serving cell of the terminal device, and/or M available MCS levels indicated by the first downlink channel; M is an integer greater than or equal to 1.
The method according to claim 1, wherein the measurement related information of the serving cell includes: a current measurement result of the serving cell.
The method according to claim 2, wherein the current measurement result of the serving cell includes at least one of the following:

Current signal quality measurement results;

The current timing advance TA value;

The current distance between the terminal device and the network device corresponding to the serving cell.
The method according to claim 2 or 3, wherein the method further comprises:

The second MCS level is determined according to the current measurement result of the serving cell and the correspondence between the measurement result quantization interval and the MCS level.
The method according to claim 4, wherein, determining the way to control the uplink transmission comprises:

In the case that the second MCS level is not lower than the lowest MCS level among the M available MCS levels, determining a first MCS level based on the second MCS level, and using the first MCS level for uplink transmission;

or,

In a case where the second MCS level is not among the M available MCS levels and the second MCS level is lower than the lowest MCS level among the M available MCS levels, determining not to perform the uplink transmission.
The method of claim 5, wherein the determining a first MCS level based on the second MCS level comprises:

If the second MCS level is included in the M available MCS levels, the second MCS level is used as the first MCS level;

If the second MCS level is not among the M available MCS levels and the second MCS level is higher than the highest MCS level among the M available MCS levels, then the M available MCS levels The highest MCS level among the levels is taken as the first MCS level.
The method according to claim 3, wherein the measurement-related information of the serving cell further comprises: a change trend of the measurement result of the serving cell.
The method according to claim 7, wherein the change trend of the measurement result of the serving cell is a predicted change trend relative to the current measurement result of the serving cell;

The change trend of the measurement result includes: a first change trend, or a second change trend;

The first change trend includes at least one of the following: the TA value becomes smaller; the signal quality measurement result becomes larger; the distance between the terminal device and the network device corresponding to the serving cell becomes smaller;

The second change trend includes at least one of the following: the TA value becomes larger; the signal quality measurement result becomes smaller; and the distance between the terminal device and the network device corresponding to the serving cell becomes larger.
The method of claim 8, wherein the method further comprises:

If the change trend of the measurement result of the serving cell is the first change trend, the corresponding third MCS level is determined according to the current measurement result of the serving cell and the correspondence between the measurement result quantization interval and the MCS level.
The method according to claim 9, wherein determining the manner of controlling the uplink transmission comprises:

In the case that the third MCS level is not lower than the lowest MCS level among the M available MCS levels, determining a first MCS level based on the third MCS level, and using the first MCS level for uplink transmission;

or,

In a case where the third MCS level is not among the M available MCS levels and the third MCS level is lower than the lowest MCS level among the M available MCS levels, determining not to perform the uplink transmission.
The method of claim 10, wherein the method further comprises:

In the case where the third MCS level is not among the M available MCS levels and the third MCS level is lower than the lowest MCS level among the M available MCS levels, if the first MCS level If the M available MCS levels indicated in the row channel include the lowest MCS level supported by the system, the lowest MCS level supported by the system is taken as the first MCS level, and the first MCS level is used for uplink transmission.
The method of claim 10, wherein the determining a first MCS level based on the third MCS level comprises:

If the third MCS level is one of M available MCS levels, the third MCS level is used as the first MCS level;

If the third MCS level is not one of the M available MCS levels and the third MCS level is higher than the highest MCS level of the M available MCS levels, then the M available MCS levels are of the highest MCS level as the first MCS level.
The method according to claim 7, wherein determining the manner of controlling the uplink transmission further comprises:

If the change trend of the measurement result of the serving cell is the second change trend, it is determined not to perform the uplink transmission.
The method according to claim 7, wherein determining the manner of controlling the uplink transmission further comprises:

If the change trend of the measurement result of the serving cell is the second change trend, and the M available MCS levels indicated in the first downlink channel include the lowest MCS level supported by the system, the system supports the lowest MCS level. The lowest MCS level is used as the first MCS level, and the first MCS level is used for uplink transmission;

or,

If the change trend of the measurement result of the serving cell is the second change trend, and the M available MCS levels indicated in the first downlink channel do not include the lowest MCS level supported by the system, it is determined not to perform the upstream transmission.
The method according to claim 1, wherein the measurement-related information of the serving cell comprises: an estimated measurement result of the serving cell at the first moment;

Wherein, the first moment is: the expected reception moment of the data for uplink transmission in the serving cell.
The method of claim 15, wherein the method further comprises:

The terminal device determines the corresponding fourth MCS level according to the estimated measurement result of the serving cell at the first moment and the correspondence between the measurement result quantization interval and the MCS level.
The method according to claim 16, wherein determining the manner of controlling the uplink transmission comprises:

In the case that the fourth MCS level is not lower than the lowest MCS level among the M available MCS levels, determining a first MCS level based on the fourth MCS level, and using the first MCS level for uplink transmission;

or,

In a case where the fourth MCS level is not among the M available MCS levels and the fourth MCS level is lower than the lowest MCS level among the M available MCS levels, determining not to perform the uplink transmission.
18. The method of claim 17, wherein the determining a first MCS level based on the fourth MCS level comprises:

If the fourth MCS level is included in the M available MCS levels, the fourth MCS level is used as the first MCS level;

If the fourth MCS level is not among the M available MCS levels and the fourth MCS level is higher than the highest MCS level among the M available MCS levels, then the M available MCS levels The highest MCS level among the levels is taken as the first MCS level.
The method of any one of claims 15-18, wherein the method further comprises:

The terminal device predicts the expected measurement result of the serving cell at the first moment according to the location information, the motion track and the ephemeris information of the network device.
The method according to claim 19, wherein the predicted measurement result of the serving cell at the first moment comprises at least one of the following:

The expected signal quality measurement result of the serving cell at the first moment;

the estimated TA value of the serving cell at the first moment;

At the first moment, the estimated distance between the terminal device and the network device corresponding to the serving cell.
The method of claim 20, wherein the method further comprises:

The terminal device sends the distance between the terminal device and the network device corresponding to the serving cell at the moment of uplink transmission, and the distance between the terminal device and the network device corresponding to the serving cell at the first moment. distance, determine the first proportional relationship;

The terminal device calculates the expected signal quality measurement result of the serving cell at the first moment according to the first proportional relationship and the signal quality measurement result at the time of sending the uplink transmission.
The method according to any one of claims 4, 9, and 16, wherein the corresponding relationship between the measurement result quantization interval and the MCS level is configured by a network device, or, preset, or, by a terminal device definite;

The correspondence between the measurement result quantization interval and the MCS level includes: the correspondence between the K measurement result quantization areas and the N MCS levels;

The N is an integer greater than or equal to M, and K is an integer greater than or equal to 1; the N MCS levels at least include the M available MCS levels, and the N MCS levels are configured by the network device, or preset.
The method according to claim 22, wherein the K measurement result quantization interval is determined according to K-1 measurement result thresholds;

The K-1 measurement result thresholds are: configured by the network device, or preset, or determined by the terminal device.
The method according to claim 23, wherein the measurement result quantification interval includes at least one of the following:

Signal quality measurement result quantification interval;

TA value quantification interval;

The quantified interval of the distance between the terminal device and the network device.
The method according to any one of claims 1-24, wherein the first downlink channel is a physical downlink control channel (PDCCH) for dynamically scheduling uplink transmission.
A method of data transmission, comprising:

The network device receives the uplink transmission that adopts the MCS level transmission of the first modulation and decoding scheme;

The first MCS level is an MCS level determined according to at least one of the following: measurement-related information of the serving cell of the terminal device, and/or M available MCS levels indicated by the first downlink channel; M is Integer greater than or equal to 1.
The method of claim 26, wherein the method further comprises:

The network device sends a first downlink channel to the terminal device; the first downlink channel carries M available MCS levels.
The method according to claim 26 or 27, wherein the first downlink channel is a physical downlink control channel (PDCCH) for dynamically scheduling uplink transmission.
The method of claim 26, wherein the method further comprises:

The network device sends configuration information to the terminal device;

Wherein, the configuration information includes: the correspondence between the measurement result quantization interval and the MCS level.
The method according to claim 29, wherein the corresponding relationship between the measurement result quantization interval and the MCS level comprises: the correspondence relationship between K measurement result quantization regions and N MCS levels;

The N is an integer greater than or equal to M, and K is an integer greater than or equal to 1.
The method of claim 30, wherein the configuration information further comprises N MCS levels;

The N MCS levels at least include the M available MCS levels.
The method according to claim 30, wherein the configuration information further comprises: K-1 measurement result thresholds for determining the K measurement result quantization intervals.
The method of claim 32, wherein the measurement result quantification interval comprises one of the following:

Signal quality measurement result quantification interval;

TA value quantification interval;

The quantified interval of the distance between the terminal device and the network device.
A terminal device including:

a first communication unit, performing uplink transmission;

The first processing unit controls the uplink transmission; wherein, the method for controlling the uplink transmission includes: using the first modulation and decoding scheme MCS level to perform the uplink transmission, or not performing the uplink transmission;

The first MCS level is determined according to at least one of the following: measurement-related information of the serving cell, and/or M available MCS levels indicated by the first downlink channel; M is an integer greater than or equal to 1.
The terminal device according to claim 34, wherein the measurement-related information of the serving cell includes: a current measurement result of the serving cell.
The terminal device according to claim 35, wherein the current measurement result of the serving cell includes at least one of the following:

Current signal quality measurement results;

current TA value;

The current distance between the terminal device and the network device corresponding to the serving cell.
The terminal device according to claim 35 or 36, wherein the first processing unit determines the second MCS level according to the current measurement result of the serving cell and the correspondence between the measurement result quantization interval and the MCS level .
The terminal device according to claim 37, wherein the first processing unit, if the second MCS level is not lower than the lowest MCS level among the M available MCS levels, based on the first MCS level The second MCS level determines the first MCS level, and uses the first MCS level for uplink transmission;

or,

In a case where the second MCS level is not among the M available MCS levels and the second MCS level is lower than the lowest MCS level among the M available MCS levels, determining not to perform the uplink transmission.
The terminal device according to claim 38, wherein the first processing unit, if the M available MCS levels include the second MCS level, takes the second MCS level as the first MCS level MCS level;

If the second MCS level is not among the M available MCS levels and the second MCS level is higher than the highest MCS level among the M available MCS levels, then the M available MCS levels The highest MCS level among the levels is taken as the first MCS level.
The terminal device according to claim 36, wherein the measurement-related information of the serving cell further comprises: a change trend of the measurement result of the serving cell.
The terminal device according to claim 40, wherein the change trend of the measurement result of the serving cell is a predicted change trend relative to the current measurement result of the serving cell;

The change trend of the measurement result includes: a first change trend, or a second change trend;

The first change trend includes at least one of the following: the TA value becomes smaller; the signal quality measurement result becomes larger; the distance between the terminal device and the network device corresponding to the serving cell becomes smaller;

The second change trend includes at least one of the following: the TA value becomes larger; the signal quality measurement result becomes smaller; and the distance between the terminal device and the network device corresponding to the serving cell becomes larger.
The terminal device according to claim 41, wherein the first processing unit, if the change trend of the measurement result of the serving cell is the first change trend, according to the current measurement result of the serving cell and the measurement result The corresponding relationship between the quantization interval and the MCS level is determined to determine the corresponding third MCS level.
The terminal device according to claim 42, wherein the first processing unit, if the third MCS level is not lower than the lowest MCS level among the M available MCS levels, based on the third MCS level Three MCS levels determine a first MCS level, and control the first communication unit to use the first MCS level to perform uplink transmission;

or,

the first processing unit, if the third MCS level is not among the M available MCS levels and the third MCS level is lower than the lowest MCS level among the M available MCS levels , and it is determined that the first communication unit does not perform the uplink transmission.
The terminal device according to claim 43, wherein, in the first processing unit, when the third MCS level is not among the M available MCS levels, and the third MCS level is lower than the M MCS levels In the case of the lowest MCS level among the available MCS levels, if the M available MCS levels indicated in the first downlink channel include the lowest MCS level supported by the system, the lowest MCS level supported by the system is taken as the lowest MCS level supported by the system. For the first MCS level, the first MCS level is used for uplink transmission.
The terminal device according to claim 43, wherein the first processing unit, if the third MCS level is one of M available MCS levels, takes the third MCS level as the first MCS level MCS level;

If the third MCS level is not one of the M available MCS levels and the third MCS level is higher than the highest MCS level of the M available MCS levels, then the M available MCS levels are of the highest MCS level as the first MCS level.
The terminal device according to claim 40, wherein the first processing unit determines not to perform the uplink transmission if the change trend of the measurement result of the serving cell is the second change trend.
The terminal device according to claim 40, wherein, in the first processing unit, if a change trend of the measurement result of the serving cell is a second change trend, and M indicated in the first downlink channel are available The MCS level includes the minimum MCS level supported by the system, then the minimum MCS level supported by the system is used as the first MCS level, and the first MCS level is used for uplink transmission through the first communication unit;

or,

For the first processing unit, if the variation trend of the measurement result of the serving cell is the second variation trend, and the M available MCS levels indicated in the first downlink channel do not include the lowest MCS level supported by the system , it is determined that the first communication unit does not perform the uplink transmission.
The terminal device according to claim 34, wherein the measurement-related information of the serving cell comprises: an estimated measurement result of the serving cell at the first moment;

Wherein, the first moment is: the expected reception moment of the data for uplink transmission in the serving cell.
The terminal device according to claim 48, wherein the first processing unit, according to the predicted measurement result of the serving cell at the first moment, and the corresponding relationship between the measurement result quantization interval and the MCS level, The corresponding fourth MCS level is determined.
The terminal device according to claim 49, wherein the first processing unit, if the fourth MCS level is not lower than the lowest MCS level among the M available MCS levels, based on the first MCS level Four MCS levels determine a first MCS level, and use the first MCS level to perform uplink transmission through the first communication unit;

or,

the first processing unit, when the fourth MCS level is not among the M available MCS levels and the fourth MCS level is lower than the lowest MCS level among the M available MCS levels , it is determined not to perform the uplink transmission.
The terminal device according to claim 50, wherein the first processing unit, if the fourth MCS level is included in the M available MCS levels, takes the fourth MCS level as the first MCS level MCS level;

If the fourth MCS level is not among the M available MCS levels and the fourth MCS level is higher than the highest MCS level among the M available MCS levels, then the M available MCS levels The highest MCS level among the levels is taken as the first MCS level.
The terminal device according to any one of claims 48-51, wherein the first processing unit predicts the expected prediction of the serving cell at the first moment according to the position information, the motion track and the ephemeris information of the network device measurement results.
The terminal device according to claim 52, wherein the predicted measurement result of the serving cell at the first moment includes at least one of the following:

The expected signal quality measurement result of the serving cell at the first moment;

the estimated TA value of the serving cell at the first moment;

At the first moment, the estimated distance between the terminal device and the network device corresponding to the serving cell.
The terminal device according to claim 53, wherein the first processing unit, according to the distance between the terminal device and the network device corresponding to the serving cell at the time of sending the uplink transmission, and the data at the first time the distance between the terminal device and the network device corresponding to the serving cell, and determine a first proportional relationship;

Calculate the expected signal quality measurement result of the serving cell at the first moment according to the first proportional relationship and the signal quality measurement result at the time of sending the uplink transmission.
The terminal device according to any one of claims 37, 42, and 49, wherein the corresponding relationship between the measurement result quantization interval and the MCS level is configured by the network device, or, preset, or, by the terminal equipment determined;

The correspondence between the measurement result quantization interval and the MCS level includes: the correspondence between the K measurement result quantization areas and the N MCS levels;

The N is an integer greater than or equal to M, and K is an integer greater than or equal to 1; the N MCS levels at least include the M available MCS levels, and the N MCS levels are configured by the network device, or preset.
The terminal device according to claim 55, wherein the K measurement result quantization interval is determined according to K-1 measurement result thresholds;

The K-1 measurement result thresholds are: configured by the network device, or preset, or determined by the terminal device.
The terminal device according to claim 56, wherein the measurement result quantization interval includes at least one of the following:

Signal quality measurement result quantification interval;

TA value quantification interval;

The quantified interval of the distance between the terminal device and the network device.
The terminal device according to any one of claims 34-57, wherein the first downlink channel is a physical downlink control channel (PDCCH) for dynamically scheduling uplink transmission.
A network device comprising:

a second communication unit, receiving the uplink transmission that adopts the MCS level transmission of the first modulation and decoding scheme;

The first MCS level is an MCS level determined according to at least one of the following: measurement-related information of the serving cell of the terminal device, and/or M available MCS levels indicated by the first downlink channel; M is Integer greater than or equal to 1.
The network device according to claim 59, wherein the second communication unit sends a first downlink channel to the terminal device; the first downlink channel carries M available MCS levels.
The network device according to claim 59 or 60, wherein the first downlink channel is a physical downlink control channel (PDCCH) for dynamically scheduling uplink transmission.
The network device according to claim 59, wherein the second communication unit sends configuration information to the terminal device;

Wherein, the configuration information includes: the correspondence between the measurement result quantization interval and the MCS level.
The network device according to claim 62, wherein the correspondence between the measurement result quantization interval and the MCS level comprises: the correspondence between K measurement result quantization areas and N MCS levels;

The N is an integer greater than or equal to M, and K is an integer greater than or equal to 1.
The network device of claim 63, wherein the configuration information further comprises N MCS levels;

The N MCS levels at least include the M available MCS levels.
The network device according to claim 63, wherein the configuration information further comprises: K-1 measurement result thresholds for determining the K measurement result quantization intervals.
The network device according to claim 65, wherein the measurement result quantization interval includes one of the following:

Signal quality measurement result quantification interval;

TA value quantification interval;

The quantified interval of the distance between the terminal device and the network device.
A terminal device, comprising: a processor and a memory for storing a computer program that can run on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 1-25.
A network device comprising: a processor and a memory for storing a computer program executable on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 26-33.
A chip, comprising: a processor for invoking and running a computer program from a memory, so that a device on which the chip is installed executes the method according to any one of claims 1-25.
A chip, comprising: a processor for invoking and running a computer program from a memory, so that a device on which the chip is installed performs the method according to any one of claims 26-33.
A computer-readable storage medium for storing a computer program, the computer program causing a computer to perform the steps of the method according to any one of claims 1-33.
A computer program product comprising computer program instructions that cause a computer to perform the method of any of claims 1-33.
A computer program that causes a computer to perform the method of any of claims 1-33.