WO2022067716A1

WO2022067716A1 - Communication method and device, and computer readable storage medium

Info

Publication number: WO2022067716A1
Application number: PCT/CN2020/119526
Authority: WO
Inventors: 朱亚军
Original assignee: 北京小米移动软件有限公司
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-04-07
Also published as: CN112369069B; CN112369069A

Abstract

Embodiments of the present application relate to the technical field of wireless communications, and provided therein are a communication method and device and a computer readable storage medium. The communication method comprises: acquiring at least one set of uplink transmission parameter configuration information; and in response to a trigger occasion corresponding to the at least one set of uplink transmission parameter configuration information, performing uplink transmission according to one set of configuration information among the at least one set of uplink transmission parameter configuration information. On the basis of the solutions provided in the embodiments of the present application, the reliability of uplink transmission can be ensured.

Description

Communication method, device, and computer-readable storage medium

technical field

The present application relates to the field of wireless communication technologies, and in particular, the present application relates to a communication method, a device, and a computer-readable storage medium.

Background technique

The emergence of a new generation of AR (Augmented Reality, augmented reality)/VR (Virtual Reality, virtual reality), vehicle-to-vehicle communication and other new Internet applications has put forward higher requirements for wireless communication technology, driving the continuous evolution of wireless communication technology. meet the needs of the application.

At present, cellular mobile communication technology is in the evolution stage of a new generation technology. An important feature of the new generation technology is to support flexible configuration of multiple business types. Different service types have different requirements for wireless communication technology, such as eMBB (Enhanced Mobile Broadband, Enhanced Mobile Broadband) service types mainly focus on large bandwidth, high speed, etc.; URLLC (Ultra Reliable Low Latency Communication, high reliability The main requirements of the business type are high reliability and low latency; the main requirements of the mMTC (massive Machine Type Communication, large-scale machine type communication) business type are focused on the large number of connections. Therefore, the new generation of wireless communication system needs a flexible and configurable design to support the transmission of various service types.

In a wireless communication system, due to the time-varying characteristics of the wireless channel and the influence of multipath fading, the transmission of the signal will be affected and the data transmission will fail. The power information of the transmitter has a relatively large influence on the reception performance of the signal. Under a given wireless channel condition, when the power of the transmitter is larger, the signal reception performance of the receiver is better. However, the transmit power of the transmitter cannot be increased without limit, especially for mobile communication devices. Generally speaking, the battery capacity of mobile communication devices is limited, and considering the influence of radio frequency devices, for the terminal The maximum transmit power will have a certain limit.

In the existing wireless communication system, the mechanism of uplink power control is introduced, and the terminal will send the uplink signal with appropriate power based on the configuration of the base station. However, in some communication scenarios (such as satellite communication scenarios), there will be relatively large signal transmission attenuation. If the terminal performs uplink transmission according to the transmission parameters configured in the base station's scheduling instruction, it is very likely that the reliability of uplink transmission cannot be guaranteed. sex.

SUMMARY OF THE INVENTION

The purpose of this application is to provide a communication method, device and computer-readable storage medium that can guarantee the reliability of uplink transmission. In order to achieve this purpose, the technical solutions provided by the embodiments of this application are as follows:

On the one hand, an embodiment of the present application provides a communication method that can be executed by a terminal device, and the method can include:

Obtain at least one set of uplink transmission parameter configuration information;

In response to the trigger timing corresponding to the at least one set of uplink transmission parameter configuration information, uplink transmission is performed according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.

On the other hand, an embodiment of the present application provides a communication method that can be executed by a network device, and the method can include:

The uplink information sent by the terminal device is received according to one set of configuration information in at least one set of uplink transmission parameter configuration information.

In another aspect, an embodiment of the present application provides a terminal device, where the terminal device includes:

a configuration information acquisition module, configured to acquire at least one set of uplink transmission parameter configuration information;

The transmission module is configured to perform uplink transmission according to a set of configuration information in the at least one set of uplink transmission parameter configuration information in response to a trigger opportunity corresponding to the at least one set of uplink transmission parameter configuration information.

On the other hand, an embodiment of the present application provides a network device, and the network device includes:

The transmission module is configured to receive information sent by the terminal device according to one set of configuration information in at least one set of uplink transmission parameter configuration information.

On the other hand, an embodiment of the present application also provides an electronic device, the electronic device includes a memory and a processor; wherein, the memory is configured to store a computer program; the processor is configured to store in the running memory When a computer program is used, the method provided by any optional embodiment of the present application is executed.

In another aspect, an embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the storage medium, and when the computer program runs in a processor, the processor executes any optional embodiment of the present application to provide Methods.

The beneficial effects brought about by the technical solutions provided in the present application are: in the communication method provided by the embodiments of the present application, the terminal device can use the at least one set of uplink transmission parameter configuration information according to the trigger timing corresponding to the at least one set of uplink transmission parameter configuration information A set of configuration information is used for uplink transmission. Based on this solution, when the terminal device transmits uplink data and/or uplink control information (that is, at least one of uplink data and uplink control information), it can realize the trigger timing corresponding to the at least one set of transmission parameter configuration information. The adaptive adjustment of the transmission mechanism can ensure the reliability of the uplink transmission under the condition that the power of the terminal equipment is limited.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments of the present application.

1 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an electronic device to which the communication method provided by the embodiment of the present application is applied.

Detailed ways

The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but not to be construed as limiting the present invention.

It will be understood by those skilled in the art that the singular forms "a", "an", "the" and "the" as used herein can include the plural forms as well, unless expressly stated otherwise. It should be further understood that the word "comprising" used in the specification of this application refers to the presence of stated features, integers, steps, operations, elements and/or components, but does not preclude the presence or addition of one or more other features, Integers, steps, operations, elements, components and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Furthermore, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combination of one or more of the associated listed items.

Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The "user equipment", "terminal" and "terminal equipment" used here include both wireless signal receiver equipment, which only has wireless signal receiver equipment without transmission capability, and equipment that receives and transmits hardware. A device with receive and transmit hardware capable of bidirectional communication over a bidirectional communication link. Such equipment may include: cellular or other communication equipment, which has a single-line display or a multi-line display or a cellular or other communication device without a multi-line display; PCS (Personal Communications Service, personal communication system), which can combine voice, data Processing, fax and/or data communication capabilities; PDA (Personal Digital Assistant), which may include a radio frequency receiver, pager, Internet/Intranet access, web browser, notepad, calendar and/or GPS (Global Positioning System (Global Positioning System) receiver; conventional laptop and/or palmtop computer or other device having and/or including a conventional laptop and/or palmtop computer or other device with a radio frequency receiver. As used herein, "terminal", "terminal equipment", "user equipment" may be portable, transportable, mounted in a vehicle (air, marine and/or land), or adapted and/or configured to be locally operate, and/or in distributed form, operate at any other location on Earth and/or space. The "terminal", "terminal device" and "user equipment" used here can also be a communication terminal, an Internet terminal, and a music/video playing terminal, such as a PDA, MID (Mobile Internet Device) and/or A mobile phone with music/video playback function, or a smart TV, set-top box, etc.

In order to meet the communication needs of various new Internet applications, wireless communication technology has been continuously evolving. Different application scenarios and different services have different requirements for wireless communication technology. Therefore, a new generation of wireless communication systems requires flexible and configurable designs to support the transmission of multiple application scenarios and multiple service types.

In order to ensure the performance of terminal equipment uplink transmission (including terminal equipment sending data and/or sending control information), an embodiment of the present application provides a communication method, in which at least one set of uplink transmission parameter configuration information is newly defined, based on The configuration information terminal equipment can realize adaptive adjustment of uplink transmission.

For the convenience of description, in the description of the following embodiments, the newly defined at least one set of uplink transmission parameter configuration information is simply referred to as the transmission parameter configuration in the fall back mode, and the transmission parameter configuration in this mode will be used for uplink transmission. The method is referred to as the adaptive transport mechanism for short. It can be understood that the fall back mode is only an optional name, and other names can also be used. The names of various information/messages involved in each optional implementation of this application include the fall back mode, the first name in the following paragraphs. The specific names of names such as information, second information, and dedicated DCI are only optional and illustrative, and the embodiments of the present application do not limit the names of various pieces of information.

The solutions provided in the embodiments of the present application can be applied to various communication scenarios according to actual requirements, so as to ensure the reliability of uplink transmission. Optionally, the solutions of the embodiments of the present application may be applied in a satellite communication scenario.

In the technical development of 3GPP, a great deal of research has been done on satellite communication as a supplementary way to the cellular communication system. 5G NR (5Gth New Radio, fifth-generation new air interface system) introduces non-terrestrial networks (NTN, Non-terrestrial networks), the so-called NTN, that is, 5G satellite communication network, its network has the characteristics of large cell radius, for medium / low Orbit satellite, its cell coverage radius can be from 100-1000 kilometers, for geostationary orbit satellite, its cell coverage radius can reach several kilometers.

In the research of wireless communication technology, satellite communication is considered to be an important aspect of the future development of wireless communication technology. Satellite communication refers to the communication carried out by radio communication equipment on the ground using satellites as relays. The satellite communication system consists of a satellite part and a ground part. The characteristics of satellite communication are: the communication range is large, as long as the radio waves emitted by the satellite cover the range, communication can be carried out from any two points; it is not easily affected by land disasters (high reliability). As a complement to current terrestrial cellular communication systems, satellite communications can have the following benefits:

Extended coverage: For areas where the current cellular communication system cannot cover or has high coverage costs, such as oceans, deserts, and remote mountainous areas, satellite communication can be used to solve communication problems.

Emergency communications: Under extreme conditions such as disasters such as earthquakes, where cellular communications infrastructure is unavailable, satellite communications can be used to quickly establish communications connections.

Provide industry applications: For example, for delay-sensitive services transmitted over long distances, satellite communication can be used to reduce the delay of service transmission.

It is foreseeable that in the future wireless communication system, the satellite communication system and the terrestrial cellular communication system will gradually realize the deep integration, and truly realize the intelligent connection of all things.

In the scenario of satellite communication, due to the existence of a large propagation distance, the transmission attenuation of the signal will be relatively large. In this case, if the terminal device performs uplink transmission according to the transmission parameters configured in the scheduling instruction of the base station in the prior art , it is very likely that the reliability of uplink transmission cannot be guaranteed. Because in the scenario of satellite communication, a large transmission delay will cause the configured transmission parameter information to fail to match the channel conditions when the terminal sends uplink signals/data, resulting in degradation of uplink transmission performance.

By applying the solutions provided by the embodiments of the present application to a satellite communication system, an adaptive adjustment transmission mechanism in the communication system can be implemented, and the uplink signal (control information) and/or Reliability of upstream data transmission. The satellite communication system may be a satellite communication system in which the satellite adopts a transparent forwarding method (transparent transmission on the satellite), a satellite communication system in which the satellite adopts a non-transparent forwarding method (signal regeneration on the satellite), or a two-way connection mode. satellite communication system. In a satellite communication system, network equipment (such as base stations, receiving points, etc.) can be deployed on satellites or ground stations, and signal transmission between terminal equipment and network equipment needs to be relayed through satellites.

The technical solutions of the present application and how the technical solutions of the present application solve the above-mentioned technical problems will be described in detail below with specific examples. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

FIG. 1 shows a schematic flowchart of a communication method according to an embodiment of the present application. The method is executed by a terminal device. As shown in FIG. 1 , the method may include the following steps:

Step S110: obtaining at least one set of uplink transmission parameter configuration information;

Step S120: In response to the trigger timing corresponding to the at least one set of uplink transmission parameter configuration information, perform uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.

The above-mentioned at least one set of uplink transmission parameter configuration information is the uplink transmission parameter configuration in the fall back mode. The configuration of this transmission parameter can have one or more sets, and each set of configurations includes at least one uplink transmission parameter. The indication information (which can be displayed indication information, or implicit indication information).

It should also be noted that the names of the above-mentioned at least one set of uplink transmission parameter configuration information in the embodiments of the present application are also schematic and not unique. configuration information that can determine one or more uplink transmission parameters, and different uplink transmission parameters can be determined based on the configuration of different “sets”, wherein the different uplink transmission parameters refer to at least one uplink transmission parameter is different, that is In other words, at least one uplink transmission parameter is different between the uplink transmission parameters corresponding to the two sets of configuration information. As an example, for example, one set of configuration information corresponds to the configuration of parameter A is A1, the configuration of parameter B is B1, The configuration of parameters corresponding to a set of configuration information may be A1, or may also be A1 and B2.

The specific manner in which the terminal device obtains the above at least one set of uplink transmission parameter configuration information is not limited in this embodiment of the present application. or physical layer signaling) to the terminal equipment in advance. For example, the network device can send at least one set of fall back mode corresponding to the terminal device through RRC (Radio Resource Control, radio resource control) signaling, MAC (medium access control, medium access control) CE (Control Element, control unit), etc. Upstream transmission parameter configuration information.

For the trigger timing of uplink transmission parameter configuration in fall back mode, it can be configured according to actual needs, and different trigger policies can be configured for different application scenarios. For example, the terminal device can trigger the adaptive transmission mechanism by itself according to the configured trigger policy, or it can be triggered by the network device. For example, the network device sends the trigger instruction information to the terminal device, and the terminal device adopts the fall back according to the trigger instruction information sent by the network device. The uplink transmission parameter configuration in the mode is used to transmit uplink control information and/or uplink data, that is, uplink transmission is performed based on one set of newly defined at least one set of uplink transmission parameter configuration information.

Optionally, when there are multiple sets of uplink transmission parameter configurations in fall back mode, the trigger timings corresponding to each set of configuration information may be the same or different. When multiple sets of corresponding triggering timings are the same, the terminal device triggers automatically or according to the indication information of the network device (it can only indicate the adaptive transmission mechanism, not which set of configuration to use, or which set of configuration to use). When adapting to the transmission mechanism, uplink transmission can be performed based on any one of the multiple sets of configurations, or the corresponding configuration can be selected for uplink transmission based on the device status information of the terminal equipment itself, the capability information of the terminal equipment, etc., or according to the instructions of the network equipment. A set of configurations for upload and transmission.

In an optional embodiment of the present application, for any set of configuration information in the above-mentioned at least one set of uplink transmission parameter configuration information, the uplink transmission parameter configuration information may include at least one of the following:

MCS (Modulation and Coding Scheme, modulation and coding strategy) level indication information;

Indication information of the repetition times of uplink transmission;

Resource information occupied by uplink transmission;

Indication information of modulation mode;

Bit rate indication information.

Indication information of uplink transmission power

Optionally, the indication information of the MCS level may include the MCS level or the offset value of the MCS level; the indication information of the repetition times of uplink transmission may include the number of retransmissions or the offset value of the number of retransmissions; the above-mentioned resource information may include the resource size. and at least one of resource positions; correspondingly, the indication information of the code rate includes the code rate or the offset value of the code rate; the indication information of the uplink transmission power includes the uplink transmission power or the offset value of the uplink transmission power.

It should be noted that, each indication information involved in the embodiments of the present application may be display indication information or implicit indication information. Taking the indication information of the above-mentioned MCS level (that is, the value of the MCS index (Index)) as an example, the displayed indication information is the specific value of the MCS index, that is, the MCS level, and the implicit indication information can be used to determine the MCS level. .

As an optional implementation, it is assumed that the MCS level is indicated in the transmission parameter configuration information of the fall back mode, the indicated modulation mode is QPSK (Quadrature Phase Shift Keying, quadrature phase shift keying), and the code rate is 1/3, Then, when certain conditions are met, that is, when the triggering timing of the configuration information is met, the terminal device can use the transmission parameters corresponding to the configuration to transmit uplink control information or uplink data.

As another optional implementation, it is assumed that the transmission parameter configuration information of the fall back mode indicates the offset value of the MCS level. For example, the scheduling instruction of the network device indicates that the nth MCS level in the MCS table is used. If the offset value is 3, when the triggering opportunity of the transmission parameter configuration information is satisfied, the terminal device will use the n-3th MCS level in the MCS table.

As another optional implementation manner, the above-mentioned at least one set of transmission parameter configuration information may be multiple sets, that is, the configuration information notified by the network device to the terminal device may be a set of configuration information, which includes multiple sets of configuration information. Taking the MCS level as an example, What the network device informs the terminal device can be the configuration information whose transmission parameters are {(MCS1, repetition times 1), (MCS 2, repetition times 2)...(MCS n, repetition times n)}. It can be seen that this example contains There are n sets of transmission parameter configurations. Similarly, the corresponding value in the above-mentioned transmission parameters can be the configuration value of a specific transmission parameter, or a relative value (ie an offset value). Specifically, (MCSi, number of repetitions) i) (wherein i∈[1,n]) indicates that the MCS level in the transmission parameter is 1 or the offset value of the MCS level is 1, and the number of repetitions of transmission is 1 or the offset value of the number of repeated transmissions is 1.

Optionally, for any set of transmission parameter configuration information in the fallback mode, the configuration information may include but not limited to one or more of the above items of information. The network device may inform the terminal device through system messages, higher layer signaling or physical layer signaling. Optionally, if the above configuration information only includes the indication information of part of the information in the information that the terminal device needs to know when performing uplink transmission, for other information other than this part of the information, the terminal device can use its fall back mode. The corresponding information in the transmission parameter configuration information used before the configuration.

In an optional embodiment of the present application, in response to the trigger timing corresponding to at least one set of uplink transmission parameter configuration information, performing uplink transmission according to a set of configuration information in at least one set of uplink transmission parameter configuration information, including:

Receive trigger indication information corresponding to at least one set of uplink transmission parameter configuration information sent by the network device;

In response to the trigger indication information, uplink transmission is performed according to one set of configuration information in at least one set of uplink transmission parameter configuration information.

In this optional embodiment, the terminal device may trigger the adaptive transmission mechanism according to the indication information of the network device, that is to say, the trigger timing may be the trigger indication information sent by the network device, and when the terminal device receives the trigger indication information of the network device , using the transmission parameter configuration information in fall back mode for uplink transmission. The specific manner in which the network device sends the trigger indication information to the terminal device is not limited in this embodiment of the application. For example, the network device may use a predefined manner, and may trigger the terminal device through system messages, high-level signaling, or physical layer signaling. Adaptive transmission is performed. For example, the network device can instruct the terminal device to use the transmission parameter configuration information in fall back mode in a predetermined information field in the scheduling instruction sent to the terminal device. When the transmission parameters are configured as multiple sets, it can also indicate in the scheduling instruction. Which set of transmission configuration information to use.

The timing at which the network device sends the trigger indication information to the terminal device can be configured according to actual needs, for example, it can be configured according to the transmission status information of the terminal device (such as the corresponding uplink information reception accuracy rate of the terminal device within a certain period of time, transmission power of the terminal device) etc.), capability information of the terminal device, etc. The network device may send trigger indication information to the terminal device when at least one of the transmission status information and capability information identified by the terminal meets certain conditions according to preconfigured measurements.

In an optional embodiment of the present application, the trigger indication information includes indication information of configuration information;

Correspondingly, in response to the trigger indication information, performing uplink transmission according to one set of configuration information in at least one set of uplink transmission parameter configuration information, including:

In response to the trigger indication information, the uplink transmission is performed according to the configuration information indicated in the at least one set of uplink transmission parameter configuration information and the indication information of the configuration information.

That is to say, when the terminal device executes the adaptive transmission mechanism in response to the trigger indication information sent by the network device, the network device can also indicate which set of transmission parameter configuration information of the fall back mode to use. Set configuration information for uplink transmission.

Wherein, as an optional implementation manner, in the scheme in which the terminal device triggers the terminal device to execute the adaptive transmission mechanism according to the trigger indication information of the network device, and indicates which configuration information is specifically used for uplink transmission in the trigger indication information, the network The device may also inform the terminal device of the trigger indication information and the transmission parameter configuration information of the fall back mode to be adopted by the terminal device at the same time, that is, in step S110, the terminal device obtains at least one set of uplink transmission parameter configuration information. An optional manner may be that the network device notifies the indicated transmission parameter configuration information and the corresponding trigger indication information to The terminal device, wherein the transmission parameter configuration information and the corresponding trigger indication information may be separate indications or joint indications. After the terminal device receives the corresponding information sent by the network device, it will follow the configuration information and trigger indication information notified by the network device. , and use the configuration information for uplink transmission.

In an optional embodiment of the present application, in response to a trigger timing corresponding to at least one set of uplink transmission parameter configuration information, performing uplink transmission according to a set of configuration information in at least one set of uplink transmission parameter configuration information, including:

In response to the transmission state information of the terminal device satisfying the preset condition, uplink transmission is performed according to one set of configuration information in at least one set of uplink transmission parameter configuration information.

Wherein, the transmission status information refers to the information used to characterize the transmission performance of information (at least one of data and control information) of the terminal equipment. , the transmission state information may include the transmission power, and may also be other measurement results of reference signals that can characterize the transmission performance of the device, or other parameters. The specific configuration of the preset condition is not limited in this embodiment of the present application. For different transmission state information, the corresponding preset condition may be different. Optionally, the fact that the transmission state information of the terminal device satisfies the preset condition may include that the transmit power of the terminal device satisfies the preset condition.

Optionally, the transmit power satisfying the preset condition may include, but is not limited to, the transmit power being greater than a threshold, or the transmit power reaching the maximum transmit power of the terminal device, and the like. For example, when the terminal device finds that its transmission power has reached the specified maximum value, that is, the maximum transmission power, the terminal device determines to trigger the adaptive transmission mechanism, and can use a certain transmission configuration in the transmission parameter configuration information of the fall back mode to perform uplink data. And the transmission of at least one item in the uplink control information (that is, the uplink signal), for example, you can choose a set of uplink transmission parameter configuration information of the fall back mode for uplink transmission, or according to the status information of the terminal equipment (such as may include but not limited to One or more items of equipment transmission status information, equipment capability information, and data to be transmitted (such as data priority), select a set of uplink transmission parameter configuration information for uplink transmission.

In an optional embodiment of the present application, the communication method may further include:

Send first indication information to the network device, where the first indication information is used to instruct the terminal device to use at least one set of configuration information in the uplink transmission parameter configuration information for uplink transmission.

Optionally, when the terminal device adopts the adaptive transmission mechanism, it can report the corresponding indication information, that is, the above-mentioned first indication information to the network device, so as to inform the network device that it adopts the uplink transmission parameter configuration information of the fall back mode to carry out the uplink signal. and transmission of at least one item of uplink data.

In an optional embodiment of the present application, the first indication information is further used to indicate indication information of configuration information in at least one set of uplink transmission parameter configuration information adopted by the terminal device.

Optionally, in addition to reporting to the network device that the terminal device adopts the adaptive transmission mechanism, the terminal device may also report to the network device which set of uplink transmission parameter configuration information in the fall back mode is specifically adopted.

The specific implementation manner of the terminal equipment reporting to the network equipment is not limited in this embodiment of the present application. For example, the terminal device may carry on PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) or PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) instruction information indicating that the adaptive transmission mechanism is executed.

In an optional embodiment of the present application, sending the first indication information to the network device includes at least one of the following:

In response to the terminal device performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information based on its transmission state information, sending the first indication information to the network device;

In response to the at least two sets of uplink transmission parameter configuration information being at least two sets, the first indication information is sent to the network device.

Optionally, as long as the terminal device triggers the adaptive transmission mechanism, the terminal device can send the above-mentioned first indication information to the network device.

Optionally, the terminal device may also send the above-mentioned first indication information to the network device when the adaptive transmission mechanism is triggered by the terminal device itself.

Optionally, the terminal device may send the above-mentioned first indication information to the network device when the above-mentioned at least one set of uplink transmission parameter configuration information is at least two sets.

Optionally, the terminal device may send the first indication information to the network device when the adaptive transmission mechanism is self-triggered by the terminal device and the at least one set of uplink transmission parameter configuration information is at least two sets.

Optionally, the terminal device may be triggered by the network device through the trigger indication information when the adaptive transmission mechanism is triggered, but the network device does not indicate to the terminal device which set of configurations to use (the above-mentioned at least one set of uplink transmission parameter configuration information is at least two sets) When the above-mentioned first indication information is sent to the terminal device.

As an example, when there is only one set of uplink transmission parameter configuration information in fall back mode, the terminal device may only need 1 bit (bit) of information to report to the network device (such as the base station), for example, the value of the bit is "1" to represent The uplink transmission is performed using the transmission configuration indicated in the base station scheduling instruction (the existing uplink transmission configuration); "0" represents that the fall back transmission configuration (that is, the uplink transmission parameter configuration information of the fall back mode) is used for uplink transmission. transmission.

As another example, when there are multiple sets (at least two sets) of uplink transmission parameter configuration information in fall back mode, the terminal device may also report it to the base station through multiple information bits. For example, the uplink transmission parameter configuration information in fall back mode includes: If there are 3 transmission configurations, then 2 bits of information can be used to report to the base station. "00" means that the terminal uses the transmission configuration (existing uplink transmission configuration) indicated in the base station scheduling instruction for uplink transmission; "01" means that the terminal uses Configuration 1 in the fall back transmission configuration is used for uplink transmission; "10" means that the terminal uses configuration 2 in the fall back transmission configuration for uplink transmission; "11" means that the terminal uses configuration 3 in the fall back transmission configuration for uplink transmission up transmission.

In an optional embodiment of the present application, the at least one set of uplink transmission parameter configuration information includes at least one of at least one set of configuration information corresponding to uplink control information and at least one set of configuration information corresponding to uplink data;

Correspondingly, the above-mentioned uplink transmission is performed according to one set of configuration information in at least one set of uplink transmission parameter configuration information, including:

According to the type of information to be transmitted, a set of configuration information corresponding to the type in at least one set of uplink transmission parameter configuration information is used for uplink transmission, and the type is uplink control information or uplink data.

As an optional method, at least one set of uplink transmission parameter configuration information can be configured for uplink data transmission and uplink signal transmission respectively, and when the terminal device needs to send data, One set of configuration information sends data, and when uplink control information needs to be sent, the control information is sent based on one set of configuration information in at least one set of uplink transmission parameter configuration information corresponding to the uplink control information.

Wherein, whether it is uplink data or uplink control information, when the data or control information is sent based on one set of configuration information in the corresponding at least one set of uplink transmission parameter configuration information, the specific implementation can refer to the above-mentioned optional Schemes provided in the Examples.

In an optional embodiment of the present application, the uplink at least one set of uplink transmission parameter configuration information includes configuration information corresponding to each priority;

Uplink transmission is performed according to one set of configuration information in at least one set of uplink transmission parameter configuration information, including:

According to the priority of the information to be transmitted, a set of configuration information corresponding to the priority of the information to be transmitted in at least one set of uplink transmission parameter configuration information is used for uplink transmission.

In practical applications, for different application scenarios or service types, the priorities of the information to be transmitted (uplink data and/or uplink control information) are usually different. According to the application requirements, the above-mentioned at least one set of uplink transmission parameter configuration information It may include configuration information corresponding to multiple different priorities, and each priority may correspond to at least one set of uplink transmission parameter configuration information. Correspondingly, when the terminal device triggers the adaptive transmission mechanism, it can perform uplink transmission based on the corresponding uplink transmission parameter configuration information according to the priority of the information to be transmitted.

It should be noted that, the optional embodiments provided in the embodiments of the present application may be implemented independently, or may be implemented in combination with each other.

In the foregoing optional embodiments, various optional implementation manners of the communication method provided by the present application are described by taking the terminal device as the execution subject. The communication method provided by the embodiment of the present application is described below by taking a network device as the execution subject. Optionally, the network device may be a network device in a satellite communication system, such as a base station, a receiving point, etc., wherein the base station may be any existing one. When the base station under the RAT (radio access technology, radio access technology) system is applied to a satellite communication system, the base station can be a base station deployed on a ground station or a base station deployed on a satellite.

Specifically, when the communication method provided by the embodiment of the present application is executed by a network device, the method includes:

It can be understood that the configuration information on which the network device receives uplink information (uplink data and/or uplink control information) sent by the terminal device is the uplink transmission parameter configuration information on which the terminal device performs uplink transmission.

As can be seen from the foregoing description, when the terminal device executes the adaptive transmission mechanism, it can send the first indication information to the network device, so as to report to the network device the configuration information of the uplink transmission parameters adopted by the terminal device. Know which mate the end device is using. Of course, optionally, the specific configuration adopted by the terminal device may also be indicated by the network device. In this case, the configuration information used by the network device instructing the terminal device is the configuration information used by the network device when receiving the uplink information sent by the terminal device. configuration information.

Wherein, when the communication method provided by the present application is described with the network device as the execution body, the information exchange between the network device and the terminal device may refer to the description in the foregoing optional embodiments with the terminal device as the execution body.

Sending trigger indication information to the terminal equipment, where the trigger indication information is used to trigger the terminal equipment to perform uplink transmission according to one set of configuration information in at least one set of uplink transmission parameter configuration information.

That is, the terminal device can perform the adaptive transmission mechanism based on the trigger of the network device, and perform the uplink transmission based on the uplink transmission parameter configuration information in the fall back mode.

Optionally, the network device sends trigger indication information to the terminal device, which may include:

Obtain the transmission status information of the terminal device;

In response to the transmission state information meeting the preset condition, trigger indication information is sent to the terminal device.

Optionally, the transmission status information includes at least one of a correct rate of receiving uplink information corresponding to the terminal device and a transmit power of the terminal device.

The timing at which the network device sends the trigger indication information to the terminal device, that is, the timing at which the terminal device executes the adaptive transmission mechanism, may be that the transmission status information of the terminal device satisfies a certain condition. For example, it may be at least one of the receiving accuracy rate of the terminal equipment's uplink information is lower than the set value, the terminal equipment's transmit power is greater than the set threshold, and the terminal equipment's transmit power reaches the terminal equipment's maximum transmit power.

As an optional implementation, for example, when the base station finds that within a certain predefined time length (that is, within a certain time length), the correct ratio of uplink data reception of a certain terminal device is less than a predefined threshold, the base station can trigger an automatic Adapt to the transport mechanism. Optionally, the base station can trigger the terminal equipment to perform adaptive transmission through system messages, high-level signaling, or physical layer signaling. For example, the base station can send trigger indication information to the terminal equipment through RRC signaling or MAC CE signaling; For another example, the base station may instruct the terminal device to use the transmission parameter configuration information of the fall back mode in a predefined information field in the scheduling instruction. Optionally, when there are multiple (ie multiple sets) of transmission parameter configuration information, the base station Indication information of which transmission parameter configuration information to use may also be indicated in the scheduling instruction.

Optionally, the communication method may further include:

The first indication information sent by the terminal device is received, where the first indication information is used to instruct the terminal device to use the configuration information in the at least one set of uplink transmission parameter configuration information to perform uplink transmission.

Optionally, the first indication information is further used to indicate indication information of configuration information in at least one set of uplink transmission parameter configuration information adopted by the terminal device.

For the specific description of the first indication information, reference may be made to the description of the corresponding part in the foregoing, which is not repeated here.

Based on the same principle as the communication method provided by the embodiment of the present application, the embodiment of the present application further provides a terminal device. As shown in FIG. 2 , the terminal device 100 may include a configuration information acquisition module 110 and a transmission module 120. in:

The configuration information acquisition module 110 is configured to acquire at least one set of uplink transmission parameter configuration information;

The transmission module 120 is configured to perform uplink transmission according to a set of configuration information in the at least one set of uplink transmission parameter configuration information in response to a triggering opportunity corresponding to the at least one set of uplink transmission parameter configuration information.

Optionally, the transmission module 120 can be configured to:

Optionally, the above-mentioned trigger indication information includes indication information of configuration information;

The transmission module 120 may be configured to: in response to the trigger indication information, perform uplink transmission according to the configuration information indicated by the indication information of the configuration information in the at least one set of uplink transmission parameter configuration information.

Optionally, the transmission module 120 may be configured to: in response to the transmission state information of the terminal device satisfying a preset condition, perform uplink transmission according to one set of configuration information in at least one set of uplink transmission parameter configuration information.

Optionally, the transmission state information satisfying the preset condition includes that the transmit power of the terminal device satisfies the preset condition.

Optionally, the transmit power satisfying the preset condition includes that the transmit power is greater than a set threshold, or the transmit power is equal to the maximum transmit power of the terminal device.

Optionally, the transmission module 120 is further configured to: send first indication information to the network device, where the first indication information is used to instruct the terminal device to use at least one set of configuration information in the uplink transmission parameter configuration information for uplink transmission.

Optionally, when the transmission module 120 sends the first indication information to the network device, it may be configured to perform at least one of the following:

Optionally, for any uplink transmission parameter configuration information, the uplink transmission parameter configuration information includes at least one of the following:

MCS level indication information;

Indication information of the repetition times of uplink transmission;

Resource information occupied by uplink transmission;

Indication information of modulation mode;

Bit rate indication information;

Indication information of uplink transmission power.

Optionally, the indication information of the MCS level includes the MCS level or an offset value of the MCS level. Optionally, the indication information of the repetition times of the uplink transmission includes the retransmission times or an offset value of the retransmission times.

Optionally, the resource information includes at least one of resource size and resource location.

Optionally, the indication information of the code rate includes a code rate or an offset value of the code rate.

Optionally, the indication information of the uplink transmission power includes the uplink transmission power or the offset value of the uplink transmission power.

Optionally, the above-mentioned at least one set of uplink transmission parameter configuration information includes at least one of at least one set of configuration information corresponding to uplink control information and at least one set of configuration information corresponding to uplink data; correspondingly, the transmission module 120 may be configured by Configured as:

Optionally, the above-mentioned at least one set of uplink transmission parameter configuration information includes configuration information corresponding to each priority; correspondingly, the transmission module 120 may be configured as:

Optionally, the terminal device 100 may be a terminal device in a satellite communication system.

Based on the same principle as the communication method provided by the embodiment of the present application, the embodiment of the present application further provides a network device, where the network device includes a transmission module. Wherein, the transmission module is configured to receive the information sent by the terminal device according to one set of configuration information in at least one set of uplink transmission parameter configuration information.

Optionally, the transmission module may be further configured to: send trigger indication information to the terminal device, where the trigger indication information is used to trigger the terminal device to perform uplink transmission according to one set of configuration information in the above at least one set of uplink transmission parameter configuration information.

Optionally, the transport module can be configured to:

Obtain the transmission status information of the terminal device;

Optionally, the above-mentioned transmission status information includes at least one of a correct rate of receiving uplink information corresponding to the terminal device and a transmit power of the terminal device.

Optionally, the transport module can also be configured to:

The first indication information sent by the terminal device is received, where the first indication information is used to indicate that the terminal device adopts at least one set of configuration information in the uplink transmission parameter configuration information for uplink transmission.

Optionally, the above-mentioned first indication information is further used to indicate indication information of configuration information in at least one set of uplink transmission parameter configuration information adopted by the terminal device.

Optionally, the network device may include a network device in a satellite communication system.

An embodiment of the present application further provides an electronic device, the electronic device includes a memory and a processor; wherein, the memory is configured to store a computer program; the processor is configured to execute any one of the options of the present application when running the computer program. Select the method provided in the embodiment. Specifically, the electronic device may be a terminal device, and may implement the communication method provided in any of the foregoing optional embodiments of this application and executed by the terminal device as an execution. The electronic device may also implement a network device, and the network device may implement the communication method provided in any of the foregoing optional embodiments of this application and executed by the network device as an execution subject.

An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the storage medium, and when the computer program is run in a processor, the processor can execute the storage medium provided by any optional embodiment of the present application. method.

As an optional embodiment, FIG. 3 shows a schematic structural diagram of an electronic device to which the method provided in this embodiment of the present application is applicable. As shown in FIG. 3 , the electronic device 4000 may include a processor 4001 and a memory 4003 . The processor 4001 is connected to the memory 4003, for example, through the bus 4002. The electronic device 4000 may further include a transceiver 4004 . It should be noted that, in practical applications, the transceiver 4004 is not limited to one, and the structure of the electronic device 4000 does not constitute a limitation to the embodiments of the present application. The electronic device can communicate with other electronic devices through the transceiver 4004. For example, the electronic device can be a terminal device, and the terminal device can communicate with a network device through the transceiver 4004. The electronic device can be a network device, and the network device can pass the transceiver 4004. 4004 communicates with terminal equipment and other network elements in the wireless communication system.

The processor 4001 may be a CPU (Central Processing Unit, central processing unit), a general-purpose processor, a DSP (Digital Signal Processor, a data signal processor), an ASIC (Application Specific Integrated Circuit, an application-specific integrated circuit), an FPGA (Field Programmable Gate Array) , field programmable gate array) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. The processor 4001 may also be a combination for realizing computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

The bus 4002 may include a path to transfer information between the components described above. The bus 4002 may be a PCI (Peripheral Component Interconnect, Peripheral Component Interconnect Standard) bus or an EISA (Extended Industry Standard Architecture, Extended Industry Standard Architecture) bus or the like. The bus 4002 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 3, but it does not mean that there is only one bus or one type of bus.

The memory 4003 can be a ROM (Read Only Memory, read only memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory, random access memory) or other types of storage devices that can store information and instructions. Dynamic storage device, can also be EEPROM (Electrically Erasable Programmable Read Only Memory, electrically erasable programmable read only memory), CD-ROM (Compact Disc Read Only Memory, CD-ROM) or other optical disk storage, optical disk storage (including compressed compact disc, laser disc, compact disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage medium or other magnetic storage device, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being accessed by a computer any other medium, but not limited to this.

The memory 4003 is used to store the application program code (computer program) for executing the solution of the present application, and the execution is controlled by the processor 4001. The processor 4001 is configured to execute the application program code stored in the memory 4003, so as to realize the content shown in any of the foregoing method embodiments.

It should be understood that although the various steps in the flowchart of the accompanying drawings are sequentially shown in the order indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order and may be performed in other orders. Moreover, at least a part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and the execution sequence is also It does not have to be performed sequentially, but may be performed alternately or alternately with other steps or at least a portion of sub-steps or stages of other steps.

The above are only some embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims

A communication method, characterized in that the method is executed by a terminal device, comprising:

Obtain at least one set of uplink transmission parameter configuration information;

In response to the trigger timing corresponding to the at least one set of uplink transmission parameter configuration information, perform uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
The method according to claim 1, wherein, in response to the triggering timing corresponding to the at least one set of uplink transmission parameter configuration information, the process is performed according to one set of configuration information in the at least one set of uplink transmission parameter configuration information. Upstream transmission, including:

receiving the trigger indication information corresponding to the at least one set of uplink transmission parameter configuration information sent by the network device;

In response to the trigger indication information, uplink transmission is performed according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
The method according to claim 2, wherein the trigger indication information comprises indication information of configuration information;

The performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information in response to the trigger indication information, including:

In response to the trigger indication information, uplink transmission is performed according to the configuration information indicated by the indication information of the configuration information in the at least one set of uplink transmission parameter configuration information.
The method according to claim 1, wherein, in response to the triggering timing corresponding to the at least one set of uplink transmission parameter configuration information, the process is performed according to one set of configuration information in the at least one set of uplink transmission parameter configuration information. Upstream transmission, including:

In response to the transmission state information of the terminal device satisfying the preset condition, perform uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
The method according to claim 4, wherein the transmission state information satisfying a preset condition comprises that the transmit power of the terminal equipment satisfies the preset condition.
The method according to any one of claims 1 to 5, characterized in that, further comprising:

Send first indication information to the network device, where the first indication information is used to instruct the terminal device to use the configuration information in the at least one set of uplink transmission parameter configuration information for uplink transmission.
The method according to claim 6, wherein the first indication information is further used to indicate indication information of configuration information in the at least one set of uplink transmission parameter configuration information adopted by the terminal device.
The method according to claim 6, wherein the sending the first indication information to the network device comprises at least one of the following:

In response to the terminal device performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information based on its transmission state information, sending the first indication information to the network device;

In response to the at least two sets of uplink transmission parameter configuration information being at least two sets, first indication information is sent to the network device.
The method according to any one of claims 1 to 5, wherein for any uplink transmission parameter configuration information, the uplink transmission parameter configuration information includes at least one of the following:

Modulation and coding strategy MCS level indication information;

Indication information of the repetition times of uplink transmission;

Resource information occupied by uplink transmission;

Indication information of modulation mode;

Bit rate indication information;

Indication information of uplink transmission power.
The method of claim 9, wherein:

The indication information of the MCS level includes the MCS level or the offset value of the MCS level;

The indication information of the number of repetitions of the uplink transmission includes the number of retransmissions or the offset value of the number of retransmissions;

The resource information includes at least one of resource size and resource location;

The indication information of the code rate includes a code rate or an offset value of the code rate;

The indication information of the uplink transmission power includes the uplink transmission power or the offset value of the uplink transmission power.
The method according to any one of claims 1 to 5, wherein the at least one set of uplink transmission parameter configuration information includes at least one set of configuration information corresponding to uplink control information, and at least one set of configuration information corresponding to uplink data. at least one of a set of configuration information;

The performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information includes:

According to the type of information to be transmitted, a set of configuration information corresponding to the type in the at least one set of uplink transmission parameter configuration information is used for uplink transmission, and the type is uplink control information or uplink data.
The method according to any one of claims 1 to 5, wherein the at least one set of uplink transmission parameter configuration information includes configuration information corresponding to each priority;

The performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information includes:

According to the priority of the information to be transmitted, a set of configuration information in the at least one set of uplink transmission parameter configuration information corresponding to the priority of the information to be transmitted is used for uplink transmission.
A communication method, characterized in that the method is executed by a network device, comprising:

The uplink information sent by the terminal device is received according to one set of configuration information in at least one set of uplink transmission parameter configuration information.
The method of claim 13, further comprising:

Sending trigger indication information to the terminal equipment, where the trigger indication information is used to trigger the terminal equipment to perform uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
The method according to claim 13, wherein the sending trigger indication information to the terminal device comprises:

acquiring the transmission status information of the terminal device;

In response to the transmission state information meeting a preset condition, trigger indication information is sent to the terminal device.
The method according to claim 15, wherein the transmission status information includes at least one of a reception accuracy rate of uplink information corresponding to the terminal device and a transmit power of the terminal device.
The method of claim 13, further comprising:

Receive first indication information sent by the terminal device, where the first indication information is used to instruct the terminal device to use the configuration information in the at least one set of uplink transmission parameter configuration information for uplink transmission.
The method according to claim 17, wherein the first indication information is further used to indicate indication information of configuration information in the at least one set of uplink transmission parameter configuration information adopted by the terminal device.
The method according to any one of claims 13 to 18, wherein the network device comprises a network device in a satellite communication system.
A terminal device, characterized in that the terminal device includes:

a configuration information acquisition module, configured to acquire at least one set of uplink transmission parameter configuration information;

The transmission module is configured to perform uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information in response to the trigger timing corresponding to the at least one set of uplink transmission parameter configuration information.
A network device, characterized in that the network device includes:

The transmission module is configured to receive the information sent by the terminal device according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
An electronic device, comprising a memory and a processor;

the memory configured to store a computer program;

The processor is configured to, when running the computer program, perform the method of any one of claims 1 to 12, or to perform the method of any one of claims 13 to 19.
A computer-readable storage medium, wherein a computer program is stored in the storage medium, and when the computer program runs in a processor, the processor executes the method described in any one of claims 1 to 12. method, or perform the method of any one of claims 13 to 19.