CN112369069A - Communication method, apparatus, and computer-readable storage medium - Google Patents
Communication method, apparatus, and computer-readable storage medium Download PDFInfo
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- CN112369069A CN112369069A CN202080002392.9A CN202080002392A CN112369069A CN 112369069 A CN112369069 A CN 112369069A CN 202080002392 A CN202080002392 A CN 202080002392A CN 112369069 A CN112369069 A CN 112369069A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The embodiment of the application provides a communication method, communication equipment and a computer readable storage medium, and belongs to the technical field of wireless communication. The communication method comprises the following steps: acquiring at least one set of uplink transmission parameter configuration information; and responding to the trigger time corresponding to the at least one set of uplink transmission parameter configuration information, and performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information. Based on the scheme provided by the embodiment of the application, the reliability of uplink transmission can be well ensured.
Description
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a communication method, a device, and a computer-readable storage medium.
Background
The continuous emergence of new generation of new internet applications such as AR (Augmented Reality)/VR (Virtual Reality), vehicle-to-vehicle communication and the like provides higher requirements for wireless communication technology, driving the continuous evolution of wireless communication technology to meet the application requirements.
Currently, cellular mobile communication technology is in the evolution stage of new generation technology. An important feature of the new generation of technology is to support flexible configuration of multiple service types. Different service types have different requirements on wireless communication technology, for example, the main requirements of the service type of the Enhanced Mobile Broadband (eMBB) are mainly focused on the aspects of large bandwidth, high speed and the like; URLLC (Ultra Reliable Low Latency Communication) traffic type mainly requires emphasis on higher reliability and Low Latency; the major requirement of mtc (massive Machine Type Communication) traffic Type is to focus on the large number of connections. New generation wireless communication systems therefore require flexible and configurable designs to support the transmission of multiple traffic types.
In a wireless communication system, due to the time-varying characteristics of a wireless channel and the influence of multipath fading, transmission of a signal is affected, resulting in failure of data transmission. The power information of the transmitting end has a relatively large influence on the signal receiving performance, and under a given wireless channel condition, the larger the power of the transmitting end is, the better the signal receiving performance of the receiving end is. However, the transmission power of the transmitting end cannot be increased without limit, and particularly for mobile communication devices, generally, the battery capacity of the mobile communication device is limited, and considering the influence of the radio frequency device, the maximum transmission power of the terminal is limited.
In the existing wireless communication system, an uplink power control mechanism is introduced, and a terminal transmits an uplink signal with appropriate power based on the configuration of a base station. However, in some communication scenarios (such as a satellite communication scenario), there may be a case where signal transmission attenuation is relatively large, and if the terminal performs uplink transmission according to the transmission parameters configured in the scheduling instruction of the base station, it is likely that reliability of the uplink transmission cannot be ensured.
Disclosure of Invention
An object of the present application is to provide a communication method, a device, and a computer-readable storage medium capable of ensuring uplink transmission reliability, in order to achieve the object, a technical solution provided in an embodiment of the present application is as follows:
in one aspect, an embodiment of the present application provides a communication method that may be performed by a terminal device, where the method may include:
acquiring at least one set of uplink transmission parameter configuration information;
and responding to the trigger time corresponding to the at least one set of uplink transmission parameter configuration information, and performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
In another aspect, an embodiment of the present application provides a communication method that may be performed by a network device, where the method may include:
and receiving the uplink information sent by the terminal equipment according to one set of configuration information in the 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;
and the transmission module is configured to respond to the trigger time corresponding to the at least one set of uplink transmission parameter configuration information and perform uplink transmission according to a set of configuration information in the at least one set of uplink transmission parameter configuration information.
In another aspect, an embodiment of the present application provides a network device, where the network device includes:
and the transmission module is configured to receive information sent by the terminal equipment according to a set of configuration information in the at least one set of uplink transmission parameter configuration information.
On the other hand, the embodiment of the application also provides an electronic device, which comprises a memory and a processor; wherein the memory is configured to store a computer program; the processor is configured to perform the method provided in any of the alternative embodiments of the present application when executing the computer program stored in the memory.
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 the method provided in any optional embodiment of the present application.
The beneficial effect that technical scheme that this application provided brought is: according to the communication method provided by the embodiment of the application, the terminal device can perform uplink transmission by using one set of configuration information in at least one set of uplink transmission parameter configuration information according to the trigger time corresponding to the at least one set of uplink transmission parameter configuration information. Based on the scheme, when the terminal equipment transmits the uplink data and/or the uplink control information (namely at least one of the uplink data and the uplink control information), the adaptive adjustment of the transmission mechanism can be realized according to the trigger time corresponding to the at least one set of transmission parameter configuration information, so that the reliability of uplink transmission can be ensured under the condition that the power of the terminal equipment is limited.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments of the present application will be briefly described below.
Fig. 1 is a schematic flowchart of a communication method according to 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; (ii) a
Fig. 3 is a schematic structural diagram of an electronic device to which the communication method provided in the embodiment of the present application is applied.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do 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. Further, "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 combinations 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 this application belongs. As used herein, "user equipment", "terminal equipment" includes both devices that are wireless signal receivers, devices that have only wireless signal receivers without transmit capability, and devices that have receive and transmit hardware, devices that have receive and transmit hardware capable of two-way communication over a two-way communication link. Such a device may include: a cellular or other communication device having 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), which may combine voice, data processing, facsimile and/or data communication capabilities; a PDA (Personal Digital Assistant), which may include a radio frequency receiver, a pager, internet/intranet access, a web browser, a notepad, a calendar and/or a GPS (Global Positioning System) receiver; a conventional laptop and/or palmtop computer or other device having and/or including a radio frequency receiver. As used herein, a "terminal," "terminal device," "user device" may be portable, transportable, installed in a vehicle (aeronautical, maritime, and/or land-based), or situated and/or configured to operate locally and/or in a distributed fashion at any other location(s) on earth and/or in space. As used herein, the "terminal", "terminal Device", "user Device" may also be a communication terminal, a web terminal, a music/video playing terminal, such as a PDA, an MID (Mobile Internet Device) and/or a Mobile phone with music/video playing function, and may also be a smart tv, a set-top box, and the like.
Wireless communication technology has evolved continuously to meet the communication needs of many new types of internet applications. Different application scenarios and different services have different requirements on wireless communication technologies, and therefore, a new generation of wireless communication system needs to be flexibly and configurable designed to support transmission of multiple application scenarios and multiple service types.
In order to ensure the performance of uplink transmission (including data transmission and/or control information transmission of the terminal device) of the terminal device, the embodiment of the application provides a communication method, in which at least one set of uplink transmission parameter configuration information is newly defined, and the terminal device can implement adaptive adjustment of uplink transmission based on the configuration information.
For convenience of description, in the following description of the embodiments, at least one set of newly defined uplink transmission parameter configuration information is referred to as a fallback (fallback) mode transmission parameter configuration, and a mode of performing uplink transmission by using the fallback mode transmission parameter configuration is referred to as an adaptive transmission mechanism. It should be understood that the fall back mode is only an optional name, and other names may also be used, and specific names of various information/messages related in various optional embodiments of the present application, including the fall back mode, the first information, the second information, the special DCI in the following, and the like, are only optional and exemplary, and the calling of each information is not limited in the embodiments of the present application.
The scheme provided by the embodiment of the application can be applied to various communication scenes according to actual requirements so as to ensure the reliability of uplink transmission. Optionally, the scheme of the embodiment of the application can be applied to a satellite communication scene.
In the technical development of 3GPP, there has been a great deal of research into satellite communication as a complementary way to cellular communication systems. A Non-terrestrial network (NTN) is introduced into a 5G NR (5Gth New Radio, fifth generation New air interface system), so-called NTN, that is, a 5G satellite communication network, and the network has a characteristic of large cell radius, and for a medium/low orbit satellite, the cell coverage radius may range from 100 + 1000 kilometers, and for a synchronous orbit satellite, the cell coverage radius may range to several kilometers.
In the research of wireless communication technology, satellite communication is considered as an important aspect of the development of future wireless communication technology. Satellite communication refers to communication performed by a radio communication device on the ground using a satellite as a relay. A satellite communication system is comprised of a satellite portion and a terrestrial portion. The satellite communication is characterized in that: the communication range is large, and communication can be carried out from any two points as long as the communication range is covered by electric waves transmitted by a satellite; is not easily affected by land disasters (high reliability). Satellite communications, as a complement to current terrestrial cellular communication systems, may have the following benefits:
extending and covering: for areas which cannot be covered by the existing cellular communication system or are high in coverage cost, such as oceans, deserts, remote mountainous areas and the like, the problem of communication can be solved through satellite communication.
Emergency communication: the use of satellite communication allows for the rapid establishment of communication connections in conditions where disasters, such as earthquakes, etc., may occur, which may result in the unavailability of the infrastructure for cellular communication.
Providing industrial applications: for example, for delay-sensitive services transmitted over long distances, the delay of service transmission can be reduced by means of satellite communication.
It is expected that in future wireless communication systems, a satellite communication system and a terrestrial cellular communication system will gradually realize deep fusion, and truly realize all-thing intelligent association.
In a satellite communication scenario, due to the existence of a large propagation distance, transmission attenuation of a signal is relatively large, and in this case, if a terminal device performs uplink transmission according to a transmission parameter configured in a scheduling instruction of a base station in the prior art, reliability of the uplink transmission is likely to be not guaranteed. In a satellite communication scenario, a large transmission delay may cause that configured transmission parameter information cannot match a channel condition when a terminal transmits uplink signals/data, resulting in performance degradation of uplink transmission.
By applying the scheme provided by the embodiment of the application to a satellite communication system, a self-adaptive adjustment transmission mechanism in the communication system can be realized, and the reliability of uplink signals (control information) and/or uplink data transmission can be ensured under the condition that the power of a terminal is limited. The satellite communication system may be a satellite communication system in which a satellite uses a transparent forwarding manner (on-board transparent transmission), a satellite communication system in which a satellite uses a non-transparent forwarding manner (on-board signal regeneration), or a satellite communication system in a bidirectional connection mode. In a satellite communication system, network devices (such as base stations, receiving points, etc.) may be deployed on a satellite or on a ground station, and signal transmission between a terminal device and the network device needs to be relayed through the satellite.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 shows a flowchart of a communication method according to an embodiment of the present application, where the method is performed by a terminal device, and 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: and responding to the trigger time corresponding to the at least one set of uplink transmission parameter configuration information, and performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
The at least one set of uplink transmission parameter configuration information is uplink transmission parameter configuration in the fallback mode, where the transmission parameter configuration may include one or more sets, and each set of configuration includes indication information (which may be displayed indication information or implicit indication information) of at least one uplink transmission parameter.
It should also be noted that, in this embodiment of the present application, names of the at least one set of uplink transmission parameter configuration information are also schematic and not unique, where a "set" refers to one type of configuration information, that is, configuration information that is acquired by the terminal and that can determine one or more uplink transmission parameters, and different uplink transmission parameters may be determined based on different "sets" of configurations, where the different uplink transmission parameters refer to that at least one uplink transmission parameter is different, that is, at least one uplink transmission parameter is different between uplink transmission parameters corresponding to two sets of configuration information, as an example, a configuration of a parameter a is a1, a configuration of a parameter B is B1, and a configuration of a parameter corresponding to another set of configuration information may be a1, or may also be a1 and B2.
The specific way for the terminal device to obtain the at least one set of uplink transmission parameter configuration information is not limited in the embodiment of the present application, and may be, for example, a predefined way or a predefined way that the network device (e.g., a base station) notifies the terminal device in advance through a system message and a signaling (a high layer signaling or a physical layer signaling). For example, the network device may send at least one set of uplink transmission parameter configuration information corresponding to the fall back mode to the terminal device through RRC (Radio Resource Control) signaling, MAC (medium access Control) CE (Control Element), and the like.
For the trigger time of the uplink transmission parameter configuration in the fallback mode, the trigger time can be configured according to actual requirements, and different trigger strategies can be configured corresponding to different application scenarios. For example, the terminal device may trigger the adaptive transmission mechanism by itself according to the configured trigger policy, or may be triggered by the network device, for example, the network device sends trigger indication information to the terminal device, and the terminal device performs uplink control information and/or uplink data transmission by using uplink transmission parameter configuration in a fallback mode according to the trigger indication information sent by the network device, that is, performs uplink transmission based on one set of configuration in at least one set of newly defined uplink transmission parameter configuration information.
Optionally, when multiple sets of uplink transmission parameters are configured in the fallback mode, the triggering times corresponding to the sets of configuration information may be the same or different. When a plurality of sets of corresponding trigger times are the same, the terminal device can perform uplink transmission based on any one of the plurality of sets of configurations when triggering the self or triggering the adaptive transmission mechanism according to the indication information (which adaptive transmission mechanism is adopted can be only indicated, which configuration is not adopted is not indicated, and which configuration is specifically adopted can also be indicated) of the network device, or select the corresponding configuration according to the device state information of the terminal device, the capability information of the terminal device and the like to perform uplink transmission, or perform uplink transmission according to a set of configuration indicated by the network device.
In an optional embodiment of the present application, for any set of configuration information in the at least one set of uplink transmission parameter configuration information, the uplink transmission parameter configuration information may include at least one of the following:
an indication of MCS (Modulation and Coding Scheme) level;
indication information of the repetition times of the uplink transmission;
resource information occupied by uplink transmission;
indication information of a modulation mode;
and indication information of code rate.
Indication information of uplink transmission power
Optionally, the indication information of the MCS level may include an offset value of the MCS level or the MCS level; the indication information of the repetition times of the uplink transmission may include the retransmission times or an offset value of the retransmission times; the resource information may include at least one of a resource size and a resource location; correspondingly, the indication information of the code rate comprises the code rate or the deviation value of the code rate; the indication information of the uplink transmission power includes the uplink transmission power or an offset value of the uplink transmission power.
Each piece of instruction information related in the embodiments of the present application may be display instruction information or implicit instruction information. Taking the indication information of the MCS level (i.e., the value of the MCS Index (Index)) as an example, the display indication information is the specific value of the MCS Index, i.e., the MCS level, and the implicit indication information may be information that can be used to determine the MCS level.
As an optional embodiment, it is assumed that the MCS level is indicated in the transmission parameter configuration information of the fallback mode, the indicated modulation mode is QPSK (Quadrature Phase Shift Keying), and the code rate is 1/3, when a certain condition is satisfied, that is, when a trigger timing of the configuration information is satisfied, the terminal device may use the transmission parameter corresponding to the configuration to perform transmission of uplink control information or uplink data.
As another optional embodiment, assuming that the offset value of the MCS level is indicated in the transmission parameter configuration information of the fallback mode, for example, the nth MCS level in the MCS table is used as indicated in the scheduling instruction of the network device, and the offset value is 3, when the trigger timing of the transmission parameter configuration information is satisfied, the terminal device will use the nth-3 MCS level in the MCS table.
As another alternative, the 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 configuration information set, which includes multiple sets of configuration information, and in this example, the network device notifies the terminal device of the configuration information whose transmission parameter may be { (MCS1, repetition number 1), (MCS 2, repetition number 2) … (MCS n, repetition number n) }, it can be seen that the example includes n sets of transmission parameter configurations, and similarly, the corresponding value in the transmission parameter may be a specific configuration value of the transmission parameter, or may be a relative value (i.e. an offset value), specifically, (MCSi, repetition number i) (where i ∈ [1, n ]) indicates that the MCS level in the transmission parameter is 1 or the offset value of the MCS level is 1, the number of repetitions of transmission is 1 or the offset value of the number of repetitions of transmission is 1.
Optionally, for any set of transmission parameter configuration information of the fallback mode, the configuration information may include, but is not limited to, one or more of the above items of information. The network device may inform the terminal device through a system message, higher layer signaling, or physical layer signaling. Optionally, if the configuration information includes only the indication information of the part of the information that needs to be known when the terminal device performs uplink transmission, for other information except the part of the information, the terminal device may use corresponding information in the transmission parameter configuration information that is used before the terminal device performs configuration in the fallback mode.
In an optional embodiment of the present application, the performing, according to a set of configuration information in at least one set of uplink transmission parameter configuration information, uplink transmission in response to a trigger time corresponding to the at least one set of uplink transmission parameter configuration information includes:
receiving trigger indication information corresponding to at least one set of uplink transmission parameter configuration information sent by network equipment;
and responding to the trigger indication information, and performing uplink transmission according to a 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, the trigger time may be trigger indication information sent by the network device, and when receiving the trigger indication information of the network device, the terminal device performs uplink transmission by using the transmission parameter configuration information in the fallback mode. The specific manner in which the network device sends the trigger indication information to the terminal device is not limited in the embodiment of the present application, for example, the network device may use a predefined manner, and may trigger the terminal device to perform adaptive transmission through a system message, a higher layer signaling, or a physical layer signaling. For example, the network device may instruct, in a certain predetermined information field in the scheduling instruction sent to the terminal device, the terminal device to use the transmission parameter configuration information of the fallback mode, and when the transmission parameters are configured into multiple sets, may also instruct, in the scheduling instruction, which set of transmission configuration information is specifically used.
The time when the network device sends the trigger indication information to the terminal device may be configured according to actual requirements, for example, the time may be configured according to transmission state information of the terminal device (for example, a corresponding uplink information receiving accuracy of the terminal device within a certain time period, a transmission power of the terminal device, and the like), capability information of the terminal device, and the network device may send the trigger indication information to the terminal device according to preconfigured measurement when at least one of the transmission state information and the capability information identified by the terminal device meets a certain condition.
In an optional embodiment of the present application, the trigger indication information includes indication information of the configuration information;
correspondingly, the performing uplink transmission according to a set of configuration information in at least one set of uplink transmission parameter configuration information in response to the trigger indication information includes:
and responding to the triggering indication information, and performing uplink transmission according to the configuration information indicated by the indication information of the configuration information in at least one set of uplink transmission parameter 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 may further indicate which set of transmission parameter configuration information specifically adopts the fallback mode, and the terminal device performs uplink transmission according to the set of configuration information specified by the network device.
As an optional implementation manner, in a scheme that 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 adopted for uplink transmission in the trigger indication information, the network device may also notify the terminal device of the trigger indication information and the transmission parameter configuration information of the fallback mode to be adopted by the terminal device at the same time, that is, in step S110, the terminal device may obtain at least one set of uplink transmission parameter configuration information in an optional manner, that is, the network device notifies the indicated transmission parameter configuration information and the corresponding trigger indication information to the terminal device when it is required to trigger the terminal device to execute the adaptive transmission mechanism (for example, the transmission state of the terminal device meets a preset condition), where the transmission parameter configuration information and the corresponding trigger indication information may be respectively indicated, or joint indication, after receiving the corresponding information sent by the network device, the terminal device uses the configuration information to perform uplink transmission according to the configuration information and the trigger indication information notified by the network device.
In an optional embodiment of the present application, performing uplink transmission according to a set of configuration information in at least one set of uplink transmission parameter configuration information in response to a trigger time corresponding to the at least one set of uplink transmission parameter configuration information includes:
and responding to the condition that the transmission state information of the terminal equipment meets the preset condition, and performing uplink transmission according to one set of configuration information in at least one set of uplink transmission parameter configuration information.
The transmission state information refers to information (at least one of data and control information) used for characterizing transmission performance of information (at least one of data and control information) of the terminal device, and optionally may be information characterizing transmission performance of uplink information of the terminal device, and optionally, the transmission state information may include transmission power, and may also be measurement results of other reference signals capable of characterizing transmission performance of the device, or other parameters. The specific configuration of the preset condition is not limited in the embodiment of the present application, and the corresponding preset condition may be different for different transmission state information. Optionally, the transmission state information of the terminal device meeting the preset condition may include that the transmission power of the terminal device meets the preset condition.
Optionally, the transmission power meeting the preset condition may include, but is not limited to, the transmission power being greater than a threshold, or the transmission power reaching the maximum transmission power of the terminal device. For example, when finding that the own transmit power has reached a specified maximum value, that is, the maximum transmit power, the terminal device determines to trigger an adaptive transmission mechanism, may use a certain transmission configuration in the transmission parameter configuration information of the fall back mode to transmit at least one item (that is, an uplink signal) of uplink data and uplink control information, for example, may optionally select one set of uplink transmission parameter configuration information of the fall back mode to perform uplink transmission, or select one set of uplink transmission parameter configuration information to perform uplink transmission according to the state information of the terminal device (for example, may include but is not limited to one or more items of transmission state information of the device, device capability information, data to be transmitted (for example, priority of the data), and the like.
In an optional embodiment of the present application, the communication method may further include:
and sending first indication information to the network equipment, wherein the first indication information is used for indicating that the terminal equipment adopts configuration information in at least one set of uplink transmission parameter configuration information to carry out uplink transmission.
Optionally, when the terminal device uses the adaptive transmission mechanism, the terminal device may report corresponding indication information, that is, the first indication information, to the network device to notify the network device that the uplink transmission parameter configuration information of the fallback mode is used to transmit at least one of the uplink signal and the 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 used by the terminal device.
Optionally, the terminal device may report to the network device which set of uplink transmission parameter configuration information of the fallback mode is specifically adopted, in addition to reporting to the network device that the adaptive transmission mechanism is adopted.
The specific implementation manner reported by the terminal device to the network device is not limited in the embodiments of the present application. For example, the terminal device may carry indication information indicating that an adaptive transmission mechanism is performed on a PUSCH (Physical Uplink Shared Channel) or a PUCCH (Physical Uplink Control Channel).
In an optional embodiment of the present application, the sending the first indication information to the network device includes at least one of:
responding to the transmission state information of the terminal equipment, performing uplink transmission according to a set of configuration information in at least one set of uplink transmission parameter configuration information, and sending first indication information to the network equipment;
and responding to at least two sets of uplink transmission parameter configuration information, and sending first indication information to the network equipment.
Optionally, as long as the terminal device triggers the adaptive transmission mechanism, the terminal device may send the first indication information to the network device.
Optionally, the terminal device may also send the 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 first indication information to the network device when the 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 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 send the first indication information to the terminal device when the adaptive transmission mechanism is triggered by the network device through the trigger indication information, but the network device does not indicate to the terminal device which set of configuration is specifically adopted (at least two sets of the at least one set of uplink transmission parameter configuration information).
As an example, when there is only one set of uplink transmission parameter configuration information in the fallback mode, the terminal device may only need to report 1bit of information to the network device (e.g., the base station), for example, a value of bit "1" represents that the transmission configuration (existing uplink transmission configuration) indicated in the base station scheduling instruction is used to perform uplink transmission; "0" represents that the uplink transmission is performed using the null back transmission configuration (i.e., the uplink transmission parameter configuration information of the null back mode).
As another example, when there are multiple sets (at least two sets) of uplink transmission parameter configuration information of the fallback mode, the terminal device may also report to the base station through multiple information bits, for example, if there are 3 transmission configurations for the uplink transmission parameter configuration information of the fallback mode, then it may report to the base station using 2-bit information, and "00" may represent that the terminal has performed uplink transmission using the transmission configuration (existing uplink transmission configuration) indicated in the base station scheduling instruction; "01" represents that the terminal performs uplink transmission using configuration 1 in the null back transmission configuration; "10" represents that the terminal has performed uplink transmission using configuration 2 in the fall back transmission configuration; "11" represents that the terminal has performed uplink transmission using configuration 3 in the fall back transmission configuration.
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 performing uplink transmission according to one set of configuration information in at least one set of uplink transmission parameter configuration information includes:
and according to the type of the information to be transmitted, performing uplink transmission by adopting a set of configuration information corresponding to the type in at least one set of uplink transmission parameter configuration information, wherein the type is uplink control information or uplink data.
As an optional manner, at least one set of uplink transmission parameter configuration information may be configured for uplink data transmission and uplink signal transmission, and when data needs to be sent, the terminal device sends the data based on one set of configuration information in the at least one set of uplink transmission parameter configuration information corresponding to the uplink data, and when uplink control information needs to be sent, the terminal device sends the control information based on one set of configuration information in the at least one set of uplink transmission parameter configuration information corresponding to the uplink control information.
When data or control information is transmitted based on one set of configuration information in at least one set of corresponding uplink transmission parameter configuration information, no matter uplink data or uplink control information, specific embodiments may refer to the schemes provided in the foregoing optional embodiments.
In an optional embodiment of the present application, the at least one set of uplink transmission parameter configuration information includes configuration information corresponding to each priority;
performing uplink transmission according to a set of configuration information in at least one set of uplink transmission parameter configuration information, including:
and according to the priority of the information to be transmitted, performing uplink transmission by adopting 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.
In practical applications, for different application scenarios or service types, priorities of information to be transmitted (uplink data and/or uplink control information) may also be different, and for the application requirements, the at least one set of uplink transmission parameter configuration information may include configuration information corresponding to a plurality of 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, uplink transmission can be performed 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 various alternative embodiments provided in the embodiments of the present application may be implemented individually or in combination with each other.
In the foregoing, various optional embodiments of the communication method provided in the present application are described with the terminal device as an execution subject. The communication method provided in the embodiment of the present application is described below with a network device as an execution subject, and optionally, the network device may be a network device in a satellite communication system, such as a base station, a receiving point, and the like, where the base station may be a base station under any existing Radio Access Technology (RAT) system, and when the base station is applied in the satellite communication system, the base station may be a base station deployed in a ground station, or a base station deployed in a satellite.
Specifically, when the communication method provided by the embodiment of the present application is executed by a network device, the method includes:
and receiving the uplink information sent by the terminal equipment according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
It can be understood that the configuration information based on which the network device receives the uplink information (uplink data and/or uplink control information) sent by the terminal device, that is, the uplink transmission parameter configuration information based on which the terminal device performs uplink transmission.
As can be seen from the foregoing description, when executing the adaptive transmission mechanism, the terminal device may send first indication information to the network device, so as to report specifically adopted uplink transmission parameter configuration information to the network device, and the network device may know which set of coordination is adopted by the terminal device based on the indication information. Of course, optionally, the configuration specifically adopted by the terminal device may also be indicated by the network device, and at this time, the configuration information adopted by the network device to indicate the terminal device is the configuration information based on which the network device receives the uplink information sent by the terminal device.
When the communication method provided by the present application is described with the network device as the execution subject, reference may be made to the description in each optional embodiment in which the terminal device is taken as the execution subject in the foregoing for information interaction between the network device and the terminal device.
In an optional embodiment of the present application, the communication method may further include:
and sending triggering indication information to the terminal equipment, wherein the triggering indication information is used for triggering the terminal equipment to carry out 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 may execute the adaptive transmission mechanism based on the trigger of the network device, and perform uplink transmission based on the uplink transmission parameter configuration information of the fallback mode.
Optionally, the sending, by the network device, the trigger indication information to the terminal device may include:
acquiring transmission state information of terminal equipment;
and responding to the transmission state information meeting the preset condition, and sending triggering indication information to the terminal equipment.
Optionally, the transmission state information includes at least one of an uplink information receiving accuracy rate corresponding to the terminal device and a transmission power of the terminal device.
The time when the network device sends the trigger indication information to the terminal device, that is, the time when the terminal device executes the adaptive transmission mechanism, may be when the transmission state information of the terminal device meets a certain condition. For example, the uplink information may be received with a correct rate lower than a set value, the transmission power of the terminal device is greater than a set threshold, and the transmission power of the terminal device reaches at least one of the maximum transmission power of the terminal device.
As an alternative embodiment, for example, when the base station finds that the correct rate of receiving uplink data of a certain terminal device is smaller than a predefined threshold within a certain predefined time length (i.e. within a certain time duration), the base station may trigger the adaptive transmission mechanism. Optionally, the base station may trigger the terminal device to perform adaptive transmission through a system message, a high-level signaling, or a physical layer signaling, for example, the base station may send triggering indication information to the terminal device through an RRC signaling or an MAC CE signaling; for another example, the base station may instruct the terminal device to use the transmission parameter configuration information of the fallback mode in a certain predefined information field in the scheduling instruction, and optionally, when there are multiple (i.e., multiple sets) of transmission parameter configuration information, the base station may also instruct, in the scheduling instruction, which indication information of the transmission parameter configuration information is used.
Optionally, the communication method may further include:
and receiving first indication information sent by the terminal equipment, wherein the first indication information is used for indicating the terminal equipment to adopt the configuration information in the at least one set of uplink transmission parameter configuration information to carry out 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 used by the terminal device.
For a specific description of the first indication information, reference may be made to the description of the corresponding part in the foregoing, and details are not described herein again.
Based on the same principle as the communication method provided in 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 obtaining module 110 and a transmission module 120. Wherein:
a configuration information obtaining module 110 configured to obtain at least one set of uplink transmission parameter configuration information;
the transmission module 120 is configured to respond to a trigger time corresponding to the at least one set of uplink transmission parameter configuration information, and perform uplink transmission according to a set of configuration information in the at least one set of uplink transmission parameter configuration information.
Optionally, the transmission module 120 may be configured to:
receiving trigger indication information corresponding to at least one set of uplink transmission parameter configuration information sent by network equipment;
and responding to the trigger indication information, and performing uplink transmission according to a set of configuration information in at least one set of uplink transmission parameter configuration information.
Optionally, the trigger indication information includes indication information of configuration information;
the transmission module 120 may be configured to: and responding to the triggering indication information, and performing uplink transmission according to the configuration information indicated by the indication information of the configuration information in at least one set of uplink transmission parameter configuration information.
Optionally, the transmission module 120 may be configured to: and responding to the condition that the transmission state information of the terminal equipment meets the preset condition, and performing 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 meeting the preset condition includes that the transmission power of the terminal device meets the preset condition.
Optionally, the condition that the transmission power meets the preset condition includes that the transmission power is greater than a set threshold, or the transmission power is equal to the maximum transmission power of the terminal device.
Optionally, the transmission module 120 is further configured to: and sending first indication information to the network equipment, wherein the first indication information is used for indicating that the terminal equipment adopts configuration information in at least one set of uplink transmission parameter configuration information to carry out 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 used by the terminal device.
Optionally, the transmission module 120, when sending the first indication information to the network device, may be configured to perform at least one of the following:
responding to the transmission state information of the terminal equipment, performing uplink transmission according to a set of configuration information in at least one set of uplink transmission parameter configuration information, and sending first indication information to the network equipment;
and responding to at least two sets of uplink transmission parameter configuration information, and sending first indication information to the network equipment.
Optionally, for any uplink transmission parameter configuration information, the uplink transmission parameter configuration information includes at least one of the following:
indication information of MCS level;
indication information of the repetition times of the uplink transmission;
resource information occupied by uplink transmission;
indication information of a modulation mode;
indication information of code rate;
and indication information of uplink transmission power.
Optionally, the indication information of the MCS level includes an MCS level or an offset value of the MCS level. Optionally, the information indicating the number of repetitions of uplink transmission includes a retransmission number or an offset value of the retransmission number.
Optionally, the resource information includes at least one of a resource size and a resource location.
Optionally, the indication information of the code rate includes the 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 an offset value of the uplink transmission power.
Optionally, 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; accordingly, the transmission module 120 may be configured to:
and according to the type of the information to be transmitted, performing uplink transmission by adopting a set of configuration information corresponding to the type in at least one set of uplink transmission parameter configuration information, wherein the type is uplink control information or uplink data.
Optionally, the at least one set of uplink transmission parameter configuration information includes configuration information corresponding to each priority; accordingly, the transmission module 120 may be configured to:
and according to the priority of the information to be transmitted, performing uplink transmission by adopting 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.
Alternatively, 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, which includes a transmission module. The transmission module is configured to receive information sent by the terminal device according to a set of configuration information in at least one set of uplink transmission parameter configuration information.
Optionally, the transmission module may be further configured to: and sending triggering indication information to the terminal equipment, wherein the triggering indication information is used for triggering the terminal equipment to carry out uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
Optionally, the transmission module may be configured to:
acquiring transmission state information of terminal equipment;
and responding to the transmission state information meeting the preset condition, and sending triggering indication information to the terminal equipment.
Optionally, the transmission state information includes at least one of an uplink information receiving accuracy rate corresponding to the terminal device and a transmission power of the terminal device.
Optionally, the transmission module may be further configured to:
and receiving first indication information sent by the terminal equipment, wherein the first indication information is used for indicating that the terminal equipment adopts configuration information in at least one set of uplink transmission parameter configuration information to carry out 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 used by the terminal device.
Alternatively, the network device may comprise a network device in a satellite communication system.
The embodiment of the application also provides an electronic device, which comprises a memory and a processor; wherein the memory is configured to store a computer program; the processor is configured to perform the method provided in any of the alternative embodiments of the present application when running the computer program. Specifically, the electronic device may be a terminal device, and may implement the communication method executed by the terminal device in any optional embodiment of the foregoing application. The electronic device may also implement a network device, and the network device may implement the communication method executed by the network device as the execution subject provided in any of the optional embodiments of the foregoing application.
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 may execute the method provided in any optional embodiment of the present application.
As an alternative embodiment, fig. 3 shows a schematic structural diagram of an electronic device to which the method provided in the embodiment of the present application is applied, and as shown in fig. 3, the electronic device 4000 may include a processor 4001 and a memory 4003. Processor 4001 is coupled to memory 4003, such as via bus 4002. The electronic device 4000 may further include a transceiver 4004, among other things. In addition, the transceiver 4004 is not limited to one in practical applications, and the structure of the electronic device 4000 is not limited to the embodiment of the present application. The electronic device may communicate with other electronic devices through the transceiver 4004, for example, the electronic device may be a terminal device, the terminal device may communicate with a network device through the transceiver 4004, the electronic device may be a network device, and the network device may communicate with the terminal device and other network elements in the wireless communication system through the transceiver 4004.
The Processor 4001 may be a CPU (Central Processing Unit), a general-purpose Processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor 4001 may also be a combination that performs a computational function, including, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, or the like.
The Memory 4003 may be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory) or other types of dynamic storage devices that can store information and instructions, an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), a magnetic Disc storage medium or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to these.
The memory 4003 is used for storing application program codes (computer programs) for executing the present scheme, and is controlled by the processor 4001 to execute. Processor 4001 is configured to execute application code stored in memory 4003 to implement what is shown in any of the foregoing method embodiments.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (23)
1. A communication method, performed by a terminal device, comprising:
acquiring at least one set of uplink transmission parameter configuration information;
and responding to the trigger time corresponding to the at least one set of uplink transmission parameter configuration information, and performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
2. The method of claim 1, wherein 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 time corresponding to the at least one set of uplink transmission parameter configuration information comprises:
receiving trigger indication information corresponding to the at least one set of uplink transmission parameter configuration information sent by the network equipment;
and responding to the trigger indication information, and performing uplink transmission according to a set of configuration information in the at least one set of uplink transmission parameter configuration information.
3. The method of claim 2, wherein the trigger indication information comprises indication information of configuration information;
the responding to the trigger indication information, and performing uplink transmission according to a set of configuration information in the at least one set of uplink transmission parameter configuration information, includes:
and responding to the trigger indication information, and performing 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.
4. The method of claim 1, wherein 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 time corresponding to the at least one set of uplink transmission parameter configuration information comprises:
and responding to the condition that the transmission state information of the terminal equipment meets the preset condition, and performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
5. The method according to claim 4, wherein the transmission status information satisfying a predetermined condition comprises the transmission power of the terminal device satisfying a predetermined condition.
6. The method of any one of claims 1 to 5, further comprising:
and sending first indication information to network equipment, wherein the first indication information is used for indicating that the terminal equipment adopts the configuration information in the at least one set of uplink transmission parameter configuration information to carry out uplink transmission.
7. The method according to claim 6, wherein the first indication information is further used for indicating indication information of configuration information in the at least one set of uplink transmission parameter configuration information adopted by the terminal device.
8. The method of claim 6, wherein the sending the first indication information to the network device comprises at least one of:
responding to the terminal equipment based on the transmission state information, performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information, and sending first indication information to the network equipment;
and responding to at least two sets of uplink transmission parameter configuration information, and sending first indication information to the network equipment.
9. The method according to any of claims 1 to 5, wherein for any uplink transmission parameter configuration information, the uplink transmission parameter configuration information comprises at least one of:
indication information of modulation and coding strategy MCS level;
indication information of the repetition times of the uplink transmission;
resource information occupied by uplink transmission;
indication information of a modulation mode;
indication information of code rate;
and indication information of uplink transmission power.
10. The method of claim 9,
the indication information of the MCS level comprises the MCS level or an offset value of the MCS level;
the indication information of the repetition times of the uplink transmission comprises retransmission times or offset values of the retransmission times;
the resource information includes at least one of a resource size and a resource location;
the indication information of the code rate comprises the code rate or an offset value of the code rate;
the indication information of the uplink transmission power includes the uplink transmission power or an offset value of the uplink transmission power.
11. The method according to any one of claims 1 to 5, wherein the at least one set of uplink transmission parameter configuration information comprises 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;
the performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information includes:
and according to the type of the information to be transmitted, performing uplink transmission by adopting a set of configuration information corresponding to the type in the at least one set of uplink transmission parameter configuration information, wherein the type is uplink control information or uplink data.
12. 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 respective priorities;
the performing uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information includes:
and according to the priority of the information to be transmitted, performing uplink transmission by adopting a set of configuration information corresponding to the priority of the information to be transmitted in the at least one set of uplink transmission parameter configuration information.
13. A method of communication, the method performed by a network device, comprising:
and receiving the uplink information sent by the terminal equipment according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
14. The method of claim 13, further comprising:
and sending triggering indication information to the terminal equipment, wherein the triggering indication information is used for triggering the terminal equipment to carry out uplink transmission according to one set of configuration information in the at least one set of uplink transmission parameter configuration information.
15. The method of claim 13, wherein the sending the trigger indication information to the terminal device comprises:
acquiring transmission state information of the terminal equipment;
and responding to the transmission state information meeting a preset condition, and sending triggering indication information to the terminal equipment.
16. The method of claim 15, wherein the transmission status information includes at least one of an uplink information reception correct rate corresponding to the terminal device and a transmission power of the terminal device.
17. The method of claim 13, further comprising:
and receiving first indication information sent by the terminal equipment, wherein the first indication information is used for indicating that the terminal equipment adopts the configuration information in the at least one set of uplink transmission parameter configuration information to carry out uplink transmission.
18. The method according to claim 17, wherein the first indication information is further used for indicating indication information of configuration information in the at least one set of uplink transmission parameter configuration information adopted by a terminal device.
19. The method of any of claims 13 to 18, wherein the network device comprises a network device in a satellite communication system.
20. A terminal device, characterized in that the terminal device comprises:
a configuration information acquisition module configured to acquire at least one set of uplink transmission parameter configuration information;
and the transmission module is configured to respond to a trigger time corresponding to the at least one set of uplink transmission parameter configuration information and perform uplink transmission according to a set of configuration information in the at least one set of uplink transmission parameter configuration information.
21. A network device, characterized in that the network device comprises:
and the transmission module is configured to receive information sent by the terminal equipment according to a set of configuration information in the at least one set of uplink transmission parameter configuration information.
22. An electronic device comprising a memory and a processor;
the memory configured to store a computer program;
the processor, when running the computer program, is configured to perform the method of any of claims 1 to 12, or to perform the method of any of claims 13 to 19.
23. A computer-readable storage medium, in which a computer program is stored which, when run on a processor, executes the method of any one of claims 1 to 12 or the method of any one of claims 13 to 19.
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| PCT/CN2020/119526 WO2022067716A1 (en) | 2020-09-30 | 2020-09-30 | Communication method and device, and computer readable storage medium |
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| CN112369069B (en) | 2023-09-29 |
| WO2022067716A1 (en) | 2022-04-07 |
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