CN109474372B - Data transmission method, device and system - Google Patents

Data transmission method, device and system Download PDF

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Publication number
CN109474372B
CN109474372B CN201710806421.7A CN201710806421A CN109474372B CN 109474372 B CN109474372 B CN 109474372B CN 201710806421 A CN201710806421 A CN 201710806421A CN 109474372 B CN109474372 B CN 109474372B
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Prior art keywords
data transmission
format
transmission format
terminal device
adjustment
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CN109474372A (en
Inventor
马小骏
张弛
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XFusion Digital Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201710806421.7A priority Critical patent/CN109474372B/en
Priority to PCT/CN2018/104020 priority patent/WO2019047828A1/en
Publication of CN109474372A publication Critical patent/CN109474372A/en
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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
    • H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

A method, a device and a system for data transmission relate to the technical field of communication, wherein the method comprises the following steps: the method comprises the steps that the network equipment sends configuration information to the first terminal equipment, then the first terminal equipment selects a first adjusting mode from N adjusting modes according to a measuring result after receiving the configuration information sent by the network equipment, the measuring result is obtained by the first terminal equipment through signal measurement, the first terminal equipment determines to adjust a first data transmission format into a second data transmission format according to the selected first adjusting mode, the transmitting power corresponding to the second data transmission format is smaller than the transmitting power corresponding to the first data transmission format, and finally the first terminal equipment sends data to the network equipment according to the second data transmission format. By the technical scheme, the cross link interference between the terminal devices is reduced, and the utilization rate of time-frequency resources is improved.

Description

Data transmission method, device and system
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for data transmission.
Background
In a dynamic time division duplexing (D-TDD) system, cross link interference may exist between terminal devices, because the data transmission directions of terminal devices under different base stations may be different for the same slot in the D-TDD system.
For example, as shown in fig. 1, on slot1, base station 1 sends downlink data to terminal device 1 in cell 1, and terminal device 2 in cell 2 sends uplink data to base station 2, where cell 1 is the serving cell of base station 1, and cell 2 is the serving cell of base station 2. In the communication scenario shown in fig. 1, uplink data sent by terminal device 2 may cause interference to downlink data received by terminal device 1, where the interference is cross-link interference between terminal device 1 and terminal device 2. When the cross link interference between the terminal device 1 and the terminal device 2 is serious, the communication failure of the terminal device 1 may be caused.
In order to reduce cross link interference between terminal devices and enable the terminal devices in a receiving state to normally communicate, in the prior art, the terminal devices in a transmitting state listen first before transmitting data to a base station in a current slot, if the sensed signal strength exceeds a certain threshold, the terminal devices do not transmit data in the current slot, and if the sensed signal strength does not exceed the threshold, the terminal devices transmit data to the base station in the current slot.
Disclosure of Invention
Embodiments of the present invention provide a method, an apparatus, and a system for data transmission, which are helpful for reducing cross link interference between terminal devices and improving the utilization rate of time-frequency resources.
In a first aspect, an embodiment of the present application provides a data transmission method, including:
the method comprises the steps that a first terminal device receives configuration information sent by a network device, selects a first adjusting mode from N adjusting modes according to a measuring result, then determines to adjust a first data transmission format into a second data transmission format according to the first adjusting mode, and finally sends data to the network device according to the second data transmission format, wherein the configuration information comprises N adjusting modes, the adjusting modes are used for adjusting the first data transmission format, the first data transmission format is a data transmission format which is indicated to the first terminal device by the network device and is used for sending data to the network device, N is a positive integer, the measuring result is obtained by the first terminal device through signal measurement, and the transmitting power corresponding to the second data transmission format is smaller than the transmitting power corresponding to the first data transmission format.
It should be noted that the measurement result is used to indicate that the first terminal device interferes with the communication of other devices, such as other terminal devices or network devices.
The first terminal device can adjust the data transmission format according to the measurement result, so that the first terminal device can transmit data to the network device by adopting the data transmission format with smaller transmission power, and therefore interference of the data transmitted to the network device by the first terminal device to communication of other devices is reduced.
In addition, the first terminal equipment reduces the transmission power by adjusting the data transmission format, and is also helpful for meeting the performance requirement of the block error rate.
Based on the first aspect, in a possible design, after determining that the magnitude relationship between the measurement result and the first threshold satisfies the first predetermined magnitude relationship, the first terminal device determines a first difference, and selects a first adjustment manner from the N adjustment manners according to the first difference, where the first difference is a difference between the measurement result and the first threshold.
The first adjustment mode is selected from the N adjustment modes through the first difference value, which is beneficial to simplifying the implementation mode of selecting the adjustment mode of the data transmission format.
It should be noted that, when the measurement result indicates the received power of the signal, the first predetermined size relationship indicates that the measurement result is greater than a first threshold, and when the measurement result indicates the signal-to-noise ratio, the first predetermined size relationship indicates that the measurement result is less than the first threshold, and in a specific implementation, the first predetermined size relationship may be set correspondingly according to the measurement result, which is not limited in this embodiment of the application.
Optionally, the first threshold may be predefined, or may be configured for the first terminal device by the network device, and in a possible design, the network device sends the first threshold to the first terminal device through the configuration information.
Based on the first aspect, an adjustment manner that may select a data transmission format in the embodiment of the present application is designed as follows: and the first terminal equipment determines a second difference value according to the first difference value, and selects a first adjusting mode from the N adjusting modes according to the second difference value, wherein the second difference value is the minimum difference value between the transmitting powers corresponding to the data transmission format before the first terminal equipment is adjusted and the data transmission format after the first terminal equipment is adjusted, and the difference value between the transmitting power corresponding to the first data transmission format and the transmitting power corresponding to the second data transmission format determined according to the selected first adjusting mode is not less than the second difference value.
Based on the first aspect, another possible adjustment manner for selecting a data format in the embodiment of the present application is designed as follows: the N adjusting modes respectively correspond to a difference range; and the first terminal equipment determines a third difference value according to the first difference value, and then selects a first adjusting mode from the N adjusting modes according to the third difference value, wherein the first adjusting mode is an adjusting mode corresponding to a difference value range where the third difference value is located, and the third difference value is a minimum difference value between transmitting powers respectively corresponding to a data transmission format before the first terminal equipment is adjusted and a data transmission format after the first terminal equipment is adjusted.
Based on the first aspect, in a possible design, if it is determined that the size relationship between the measurement result and the second threshold satisfies the second predetermined size relationship, the first terminal device sends, to the network device, transmission content specified by a pre-configured measurement reporting format. By the technical scheme, the network equipment can acquire the interference condition among the terminal equipment, so that the mutual transmission conflict of the cross links among the terminal equipment is reduced when the network equipment schedules the terminal equipment, and the system performance is improved.
Based on the first aspect, an embodiment of the present application is designed to possibly send transmission content specified by a preconfigured measurement report format to a network device, where the transmission content is: the first terminal equipment selects a first measurement reporting format from M measurement reporting formats configured in advance according to the size of the resource block, and sends transmission content specified by the first measurement reporting format to the network equipment, wherein M is a positive integer.
Based on the first aspect, another possible design of sending, to a network device, transmission content specified by a preconfigured measurement report format in the embodiment of the present application is: and the first terminal equipment receives indication information sent by the network equipment, and sends transmission content specified by a second measurement reporting format to the network equipment if the size relationship between the measurement result and the second threshold value is determined to meet a second preset size relationship, wherein the indication information is used for indicating the second measurement reporting format.
It should be noted that, when the measurement result indicates the received power of the signal, the second predetermined magnitude relationship means that the measurement result is greater than a second threshold value, in this case, the second threshold value is greater than the first threshold value; when the measurement result indicates the signal-to-noise ratio, the second predetermined size relationship means that the measurement result is smaller than the second threshold, in this case, the first threshold is larger than the second threshold, and in a specific implementation, the second predetermined size relationship may be set according to the measurement result, which is not limited in this embodiment of the present application.
The second threshold may be predefined, or may be configured to the first terminal device by the network device, and specifically, the network device sends the second threshold to the first terminal device through the configuration information.
Based on the first aspect, in one possible design, the measurement result is used to indicate a received power of a received signal, which is sent by the second terminal device to the first terminal device.
In the embodiment of the present application, the measurement result may be a signal strength indicator, or may also be a received signal power, or a signal-to-noise ratio of a received signal, and the embodiment of the present application is not limited thereto.
In a second aspect, an embodiment of the present application provides a method for data transmission, including:
the network device sends configuration information to a first terminal device and receives data sent by the first terminal device according to a second data transmission format, wherein the configuration information comprises N adjustment modes, the adjustment modes are used for adjusting a first data transmission format, the first data transmission format is a data transmission format which is indicated to the first terminal device by the network device and is used for sending the data to the network device, N is a positive integer, the second data transmission format is obtained by the first terminal device adjusting the first data transmission format according to a first adjustment mode selected from the N adjustment modes, and the transmission power corresponding to the second data transmission format is smaller than the transmission power corresponding to the first data transmission format.
The first terminal equipment can adjust the data transmission format, so that the utilization rate of time-frequency resources is improved while the cross link interference between the terminal equipment is reduced.
In addition, the first terminal equipment correspondingly reduces the transmission power by adjusting the data transmission format, and is also favorable for meeting the performance requirement of the block error rate.
In a possible design based on the second aspect, the configuration information further includes a first threshold value.
Based on the second aspect, in a possible design, the network device sends indication information to the first terminal device, where the indication information is used to indicate a measurement reporting format. By the technical scheme, the network equipment can acquire the interference condition among the terminal equipment, so that the mutual transmission conflict of the cross links among the terminal equipment is reduced when the network equipment schedules the terminal equipment, and the system performance is improved.
In a third aspect, an embodiment of the present application provides an apparatus for data transmission, including: the device comprises a transceiver and a processor, wherein the transceiver is used for receiving configuration information sent by network equipment, the configuration information comprises N adjusting modes, the adjusting modes are used for adjusting a first data transmission format, the first data transmission format is a data transmission format which is indicated to first terminal equipment by the network equipment and is used for sending data to the network equipment, and N is a positive integer; the processor is used for selecting a first adjusting mode from the N adjusting modes according to a measuring result, wherein the measuring result is obtained by the device through signal measurement; determining to adjust the first data transmission format into a second data transmission format according to the first adjustment mode, wherein the transmission power corresponding to the second data transmission format is smaller than the transmission power corresponding to the first data transmission format; the transceiver is further configured to transmit data to the network device according to a second data transmission format.
In a possible design based on the third aspect, the processor is configured to determine a first difference value after determining that a magnitude relationship between the measurement result and a first threshold value satisfies a first predetermined magnitude relationship, where the first difference value is a difference value between the measurement result and the first threshold value; and selecting a first adjusting mode from the N adjusting modes according to the first difference.
In a possible design based on the third aspect, the configuration information further includes a first threshold value.
In a possible design based on the third aspect, the processor is configured to determine a second difference value according to the first difference value, where the second difference value is a minimum difference value between transmission powers corresponding to a data transmission format before the device adjustment and a data transmission format after the device adjustment, respectively; and selecting a first adjusting mode from the N adjusting modes according to a second difference, wherein the difference between the transmitting power corresponding to the first data transmission format and the transmitting power corresponding to the second data transmission format determined according to the selected first adjusting mode is not less than the second difference.
Based on the third aspect, in one possible design, the N adjustment manners correspond to one difference range respectively; the processor is used for determining a third difference value according to the first difference value, wherein the third difference value is the minimum difference value between the transmitting powers respectively corresponding to the data transmission format before the device is adjusted and the data transmission format after the device is adjusted; and selecting a first adjusting mode from the N adjusting modes according to the third difference value, wherein the first adjusting mode is an adjusting mode corresponding to the difference value range where the third difference value is located.
Based on the third aspect, in one possible design, if the processor determines that the size relationship between the measurement result and the second threshold satisfies the second predetermined size relationship, the transceiver sends, to the network device, transmission content specified by a preconfigured measurement report format.
Based on the third aspect, in a possible design, the processor is further configured to select, according to the size of the resource block, a first measurement reporting format from M measurement reporting formats configured in advance, where M is a positive integer;
the transceiver is configured to send transmission content specified by the first measurement report format to the network device.
Based on the third aspect, in a possible design, the transceiver is further configured to receive indication information sent by the network device, where the indication information is used to indicate a second measurement reporting format;
and if the processor determines that the measurement result is greater than the second threshold value, the transceiver sends transmission content specified by a second measurement reporting format to the network equipment.
In a possible design according to the third aspect, the measurement result is used to indicate a received power of a received signal, which is sent to the apparatus by the second terminal device.
In a fourth aspect, an embodiment of the present application provides an apparatus for data transmission, including: the device comprises a transmitter and a receiver, wherein the transmitter is used for transmitting configuration information to the first terminal equipment, the configuration information comprises N adjusting modes, the adjusting modes are used for adjusting a first data transmission format, the first data transmission format is a data transmission format which is indicated to the first terminal equipment by the device and is used for transmitting data to the device, and N is a positive integer; the receiver is configured to receive data sent by the first terminal device according to a second data transmission format, where the second data transmission format is obtained by the first terminal device adjusting the first data transmission format according to a first adjustment mode selected from the N adjustment modes, and a transmission power corresponding to the second data transmission format is smaller than a transmission power corresponding to the first data transmission format.
In a possible design based on the fourth aspect, the configuration information further includes a first threshold value.
Based on the fourth aspect, in a possible design, the transmitter is further configured to transmit indication information to the first terminal device, where the indication information is used to indicate a measurement reporting format.
In a fifth aspect, an embodiment of the present application further provides an apparatus for data transmission, where the apparatus includes a transceiver module and a processing module, where the transceiver module is configured to perform receiving and sending steps performed by the first terminal device in the first aspect or any possible design of the first aspect, and the processing module is configured to perform processing steps performed by the first terminal device in the first aspect or any possible design of the first aspect.
In a sixth aspect, an embodiment of the present application further provides an apparatus for data transmission, where the apparatus includes a sending module and a receiving module, where the receiving module is configured to execute a receiving step executed by the network device in any possible design of the second aspect or the second aspect, and the sending module is configured to execute a sending step executed by the network device in any possible design of the second aspect or the second aspect.
In a seventh aspect, an embodiment of the present application provides a communication system, including the apparatus for data transmission in any possible design of the third aspect or the third aspect, and the apparatus for data transmission in any possible design of the fourth aspect or the fourth aspect.
In an eighth aspect, the present application further provides a first computer storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program is configured to implement the method according to the first aspect or any one of the possible designs of the first aspect in the present application, or the method according to the second aspect or any one of the possible designs of the second aspect in the present application.
In a ninth aspect, the present application embodiment further provides a computer program product, where the computer program product includes a computer program stored on a computer storage medium provided in the eighth aspect, and the computer program includes program instructions, when the program instructions are executed by a computer, for implementing the method of the first aspect or any one of the possible designs of the first aspect in the present application embodiment; or a method for implementing the second aspect or any of the possible designs of the second aspect in embodiments of the present application.
In a tenth aspect, the present application further provides a chip, where the chip includes a processor and a memory, and the processor is configured to read codes stored in the memory to implement the method according to the first aspect or any one of the possible designs according to the first aspect, or to implement the method according to the second aspect or any one of the possible designs according to the second aspect.
Drawings
FIG. 1 is a schematic diagram of a communication scenario in which cross-link interference is present;
FIG. 2 is a diagram illustrating a communication system architecture according to an embodiment of the present application;
FIG. 3 is a flowchart illustrating a method for data transmission according to an embodiment of the present application;
FIG. 4a is a schematic diagram illustrating a location of a first resource according to an embodiment of the present application;
FIG. 4b is a diagram illustrating a location of a second resource according to an embodiment of the present application;
FIG. 5a is a schematic structural diagram of an apparatus for data transmission according to an embodiment of the present application;
fig. 5b is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present application;
FIG. 6a is a schematic structural diagram of an apparatus for data transmission according to an embodiment of the present application;
fig. 6b is a schematic diagram of a hardware structure of a network device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a communication system according to an embodiment of the present application.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
It should be appreciated that the network devices referred to in the embodiments of the present application may be base stations, or access points, or may be devices in an access network that communicate over the air-interface, through one or more sectors, with wireless terminals. When the network device is a base station, the base station may be configured to convert a received air frame into an Internet Protocol (IP) packet, and serve as a router between the wireless terminal and the rest of the access network, where the rest of the access network may include an IP network. The base station may also be used to coordinate management of attributes for the air interface. For example, the base station may be a Base Transceiver Station (BTS) in a global system for mobile communication (GSM) or Code Division Multiple Access (CDMA) system, a node B (node B) in a Wideband Code Division Multiple Access (WCDMA), an evolved node B (eNB) in a Long Term Evolution (LTE) system, or a gNB in a next generation radio (NR) system, and the present embodiment is not limited thereto.
It will be appreciated that the terminal device in embodiments of the present application may be a device for providing voice and/or data connectivity to a user, or a handheld device having wireless connection capability, or other processing device connected to a wireless modem. The terminal device in the embodiment of the present application may also be a wireless terminal, where the wireless terminal may communicate with one or more core networks via a Radio Access Network (RAN), and the wireless terminal may be a mobile terminal, such as a mobile phone (or referred to as a "cellular" phone), or a computer with a mobile terminal, for example, the computer with a mobile terminal may be a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, which exchanges languages and/or data with the RAN. For example, the wireless terminal may be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or the like. A wireless terminal may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an Access Point (AP), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), a user equipment (user device), or a user equipment (user equipment), and the like, and the embodiments of the present application are not limited thereto.
It should be understood that the data transmission format in the embodiment of the present application specifies a modulation scheme of data before data transmission, a size of a Transport Block (TBS), a coding version, transmission contents, and a number of bits occupied by each part of the transmission contents, and the like, and for example, the data transmission format in the embodiment of the present application may be referred to as a Modulation and Coding Scheme (MCS), may also be referred to as a Transport Format (TF), and the like, and the embodiment of the present application is not limited thereto.
It should be understood that the embodiments of the present application can be applied to, but not limited to, D-TDD systems, such as NR systems, LTE systems, long term evolution-advanced (LTE-a) systems, the communication system may also be extended to related cellular systems such as wireless fidelity (WiFi), worldwide interoperability for microwave access (wimax), and third generation partnership project (3 GPP), or may also be applied to a communication system of Internet networking, and a specific communication system architecture applied in the embodiment of the present application may be as shown in fig. 2, and includes a base station and at least one terminal device, and it should be noted that, in the embodiment of the present application, the number of terminal devices in the communication system shown in fig. 2 is not limited.
In the communication system architecture shown in fig. 2, the data transmission directions of the terminal devices under different base stations may be different at the same time/subframe by the terminal devices under different base stations, so that cross-link interference may exist between the terminal devices.
For example, as shown in the communication scenario shown in fig. 1, in slot1, base station 1 sends downlink data to terminal device 1 in cell 1, and terminal device 2 in cell 2 sends uplink data to base station 2, where cell 1 is the serving cell of base station 1, and cell 2 is the serving cell of base station 2. In the communication scenario shown in fig. 1, uplink data sent by terminal device 2 may cause interference to downlink data received by terminal device 1, where the interference is cross-link interference between terminal device 1 and terminal device 2.
For convenience of description, in the embodiments of the present application, a network device is taken as a base station for example to describe in detail, which is only an example given in the embodiments of the present application, and when the network device is another device, the description thereof is similar to that when the network device is a base station, and is not repeated here.
The method for data transmission according to the embodiment of the present application is described in detail by taking the communication scenario shown in fig. 1 as an example.
As shown in fig. 3, a method for data transmission in an embodiment of the present application includes:
step 300, the base station 2 sends configuration information to the terminal device 2, where the configuration information includes N adjustment manners, where the adjustment manners are used to adjust a first data transmission format, the first data transmission format is indicated to the terminal device 2 by the base station 2, and the terminal device 2 is used to send data to the base station 2, and N is a positive integer.
Step 301, after receiving the configuration information sent by the base station 2, the terminal device 2 selects a first adjustment mode from the N adjustment modes according to a measurement result, where the measurement result is obtained by measuring a signal by the terminal device 2.
Step 302, the terminal device 2 determines to adjust the first data transmission format to the second data transmission format according to the first adjustment mode, where the first data transmission format is indicated to the terminal device 2 by the base station 2, and the transmission power corresponding to the second data transmission format is smaller than the transmission power corresponding to the first data transmission format.
In step 303, the terminal device 2 sends data to the base station 2 according to the second data transmission format, and then the base station 2 receives the data sent by the terminal device 2.
It should be noted that, in step 303, since the actual data transmission format of the data sent by the terminal device 2 to the base station 2 and the data transmission format indicated by the base station 2 to the terminal device 2 are changed, the base station 2 may demodulate the data after receiving the data sent by the terminal device 2 based on the following manner:
one way is as follows: the base station 2 detects a data transmission format used by data sent by the terminal device 2 to the base station 2 in a blind detection manner, and then demodulates the data, specifically, the base station 2 may predict a possible data transmission format according to a size of a resource block configured to the terminal device 2 in advance, and the base station 2 may also determine the data transmission format used by the terminal device 2 by detecting a Cyclic Redundancy Check (CRC), and in addition, another manner is: the terminal device 2 notifies the base station 2 of data transmission format information such as a resource block length and a coding scheme used for sending data through a signaling message, where the specific signaling message may be control information, the control information may be carried in a Physical Uplink Control Channel (PUCCH), and the base station 2 demodulates the data sent by the terminal device 2 according to the signaling message.
It should be further noted that, in this embodiment of the application, optionally, the measurement result is used to indicate the received power of the received signal, and also may be used to indicate the received strength or the signal-to-noise ratio of the signal, where the signal is sent to the terminal device 2 by the terminal device 1 or other terminal devices (e.g., the terminal device 1), and the signal may also be sent to the terminal device 2 by other network devices (e.g., the base station 1).
Specifically, taking the signal transmitted from the terminal apparatus 1 to the terminal apparatus 2 as an example, in a normal case, after receiving Downlink Control Information (DCI) transmitted from the base station 1, the terminal apparatus 1 determines that data needs to be received, and transmits the signal before receiving the data, where the signal may be a Reference Signal (RS) (such as a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), or the like), a sounding signal, or other defined signals. Taking the communication scenario shown in fig. 1 as an example, the transmission and measurement of signals may be implemented by the following methods:
the base station 2 configures a first resource for the terminal device 2, the terminal device 2 receives a signal on the first resource, the base station 1 configures a second resource for the terminal device 1, and the terminal device 1 transmits a signal on the second resource, where names of the signal received on the first resource and the signal transmitted on the second resource may be the same or different, for example, the signal received on the first resource may be referred to as a measurement signal, and the signal transmitted on the second resource may be referred to as a Sounding Reference Signal (SRS). Accordingly, the names of the first resource and the second resource may be the same or different, for example, the first resource is referred to as an Interference Measurement Resource (IMR), and the second resource is referred to as a reference signal resource. In the following, the signals transmitted by terminal 1 on the second resource and the signals received by terminal 2 on the first resource are referred to as reference signals.
For example, as shown in fig. 4a, the position of the first resource configured by the base station 2 may be located after a resource of Downlink Control Information (DCI) and occupy one or more symbols, and specifically, the symbol position, the sequence, the modulation scheme, the power configuration, and the like of the first resource are configured by the base station 2. Specifically, the parameters configured by the base station 2 relate to the measurement result, for example, if the measurement result is Received Signal Strength Indication (RSSI), the base station 2 needs to configure the symbol position of the first resource, and if the measurement result is Reference Signal Receiving Power (RSRP), the base station 2 needs to configure parameters such as a sequence, a modulation method, a cyclic shift, and the like in addition to the symbol position of the first resource. As shown in fig. 4b, the second resource configured by the base station 1 may also occupy one or more symbols after the resource for scheduling DCI.
After the terminal device 1 receives the DCI, if it is determined that the DCI includes information for scheduling downlink data, the terminal device 1 transmits a reference signal on a second resource before receiving the downlink data, so that the terminal device 2 performs signal measurement.
The terminal device 2 receives the reference signal transmitted by the terminal device 1 through the first resource and measures the reception power of the reference signal.
In the embodiment of the present application, the terminal device 2 performs signal measurement before transmitting data to the base station 2, and may receive reference signals transmitted from multiple devices on the first resource, and if the terminal device 2 has the capability of distinguishing these signals, the terminal device measures the received powers of these reference signals, respectively, and in order to reduce cross-link interference with these devices, usually, the maximum received power among the measured received powers is taken as the measurement result of the signal measurement of the terminal device 2. If the terminal device 2 does not have the capability to distinguish between these signals, the measured total received power is taken as a measurement result of the terminal device 2 signal measurement.
Optionally, in this embodiment of the present application, the time-frequency position of the first resource and the time-frequency position of the second resource are pre-configured to the terminal device by the base station; or, optionally, since the scheduling information includes a sequence number of a Physical Resource Block (PRB) of a frequency domain resource used by the terminal device for data transmission, the terminal device 2 may receive a reference signal on the first resource according to the sequence number of the PRB used by the terminal device for data transmission and a symbol position combined with the first resource, or the terminal device 1 may transmit a reference signal on the second resource according to the sequence number of the PRB used by the terminal device for data transmission and a symbol position combined with the second resource; illustratively, the sequence number of the PRB used by the terminal device 1 for data transmission is [0, 1, 2, 3], then the terminal device 1 transmits the reference signal on the PRB with the sequence number of [0, 1, 2, 3], the sequence number of the PRB used by the terminal device 2 for data transmission is [1, 2, 3, 4], then the terminal device 2 receives the reference signal on the PRB with the sequence number of [1, 2, 3, 4 ].
In addition, it should be noted that, in the embodiment of the present application, the measurement result may also be used to indicate the signal strength of the received reference signal, and the like, which is not limited in this embodiment of the present application.
In step 301, the terminal device 2 selects a first adjustment mode from the N adjustment modes according to the measurement result, and then when the measurement result is smaller, the cross link interference caused by the data sent by the terminal device 2 to other devices is negligible, so that adjustment of the data transmission format is not required, optionally, after determining that the size relationship between the measurement result and the first threshold satisfies a first predetermined size relationship, the terminal device 2 determines a first difference value, where the first difference value is a difference value between the measurement result and the first threshold, and then the terminal device 2 selects the first adjustment mode from the N adjustment modes according to the first difference value. And if the terminal equipment 2 determines that the size relation between the measurement result and the first threshold value does not meet the first preset size relation, sending data to the base station 2 according to the first data transmission format.
It should be noted that, when the measurement result indicates the received power of the signal, the first predetermined size relationship indicates that the measurement result is greater than a first threshold, and when the measurement result indicates the signal-to-noise ratio, the first predetermined size relationship indicates that the measurement result is less than the first threshold, and in a specific implementation, the first predetermined size relationship may be set correspondingly according to the measurement result, which is not limited in this embodiment of the application.
It should be further noted that, in this embodiment of the present application, the first threshold may be indicated to the terminal device 2 by the base station 2, or may be predefined, and when the first threshold is indicated to the terminal device 2 by the base station 2, optionally, the first threshold may be sent to the terminal device 2 through configuration information carrying adjustment modes of N data transmission formats, or may be sent to the terminal device 2 through other signaling, which is not limited to this.
In addition, the value of the first threshold corresponds to the transmission power of the terminal device 1 for transmitting the reference signal, when the transmission power of the terminal device 1 for transmitting the reference signal changes, the value of the first threshold may also change, and a specific relationship between the value of the first threshold and the transmission power of the terminal device 1 for transmitting the reference signal may be predetermined.
In this embodiment of the present application, an optional manner for determining the transmission power of the terminal device 1 for sending the reference signal is as follows: adding an offset value (offset) according to the latest uplink channel transmission power, where the offset may be configured by the base station 1, and optionally, the base station 1 may configure the offset according to the size of the cell 1 range; another optional way to determine the transmission power of the reference signal sent by the terminal device 1 is as follows: an absolute power value is indicated by the base station 1 to the terminal device 1 using a predefined absolute power value as the transmission power of the terminal device 1 for transmitting the reference signal. Alternatively, M absolute power values are configured by the base station, M being a positive integer, and which one of the M absolute power values is used is indicated to the terminal device 1 by the base station 1. For example, M is 3, assuming that the absolute power values are 10, 12, and 9, respectively, if the base station 1 indicates the absolute power value to the terminal device 1 to be 10, the terminal device 1 transmits the reference signal with the transmission power of 10.
For example, when the transmission power of the terminal device 1 for transmitting the reference signal is power 1, if the power 1 corresponds to the first threshold 1, the base station 2 indicates the first threshold 1 to the terminal device 2.
In the embodiment of the present application, when the magnitude relationship between the measurement result and the first threshold of the terminal device 2 satisfies the first predetermined magnitude relationship, it indicates that the cross link interference caused by the terminal device 2 to the terminal device 1 is relatively large, and the utilization rate of the time-frequency resource is improved while the cross link interference caused by the terminal device 2 to the terminal device 1 is reduced by adjusting the data transmission format.
For example, assuming that the first threshold value is T dB and the measurement result is R dB, if the first predefined relationship is that the measurement result is greater than the first threshold value, then when R > T, terminal device 2 may determine the transmission power of the data that needs to be adjusted downward based on (R-T).
An implementation manner of optionally selecting the first adjustment manner from the N adjustment manners is as follows:
the terminal device 2 determines a second difference value according to the first difference value, where the second difference value is a minimum difference value between transmission powers corresponding to the data transmission format before the terminal device 2 adjusts and the data transmission format after the terminal device 2 adjusts, and then the terminal device 2 selects a first adjustment mode from the N adjustment modes according to the second difference value, where a difference value between the transmission power corresponding to the first data transmission format and the transmission power corresponding to the second data transmission format determined according to the first adjustment mode is not less than the second difference value.
The functional relationship between the second difference and the first difference may be predetermined, for example, the second difference is a dependent variable, the first difference is an independent variable, and the functional relationship satisfies f (x) x, so that the second difference is equal to the first difference in size. In addition, a corresponding relationship between the second difference value and the first difference value may also be preset, for example, a difference value range corresponds to one difference value, and when the first difference value is within a certain difference value range, the second difference value is a difference value corresponding to the difference value range in which the first difference value is located.
For example, the adjustment mode may be selected as follows:
specifically, the third generation partnership project (3 GPP) TS36.213V8.6.0 specifies that the calculation method of the transmission power of the terminal device 2 on the Physical Uplink Shared Channel (PUSCH) on the subframe/slot i is as follows:
P(i)＝min{PCMAX(i),10log10(MPUSCH(i))+PO_PUSCH(j)+α(j)·PL+ΔTF(i)+fc(i)}
wherein, PCMAX(i) Maximum transmission power of terminal device 2 in subframe/time slot i; mPUSCH(i) The unit of the bandwidth occupied by the PUSCH in the subframe/slot i is a Resource Block (RB); pO_PUSCH(j) A higher layer configuration parameter, j may be 0, 1 or 2, the value of j is determined by the higher layer, when j may be 0 or 1, α (j) is a cell level parameter, and when j may be 2, α (j) is 1; PL is a downlink path loss value; in the application of the embodiment to KsIn the case of a communication scenario other than 0,
Figure GDA0002487797060000091
c is the number of code blocks configured by the base station 2 for the terminal device 2, KrIs the size of the r code block, NREThe number of code blocks used for transmitting data for the terminal device 2.
The transmission power used by the terminal device 2 for transmitting data to the base station 2 can be adjusted by adjusting KrSo that the transmission power difference before and after the adjustment is not less than the second difference.
And KrThe size of the data may be adjusted correspondingly by adjusting a data transmission format, where in the embodiment of the present application, the data transmission format specifies a code block size, a modulation scheme, a transmission rate, and the like of data sent by the terminal device to the base station. Specifically, the data transmission format is referred to as a Modulation and Coding Scheme (MCS), and may also be referred to as a transmission format as it is, and the embodiment of the present application is not limited thereto.
Taking MCS as an example, assuming that N takes a value of 4, N adjustment manners may be as shown in table 1.
TABLE 1
Adjustment mode MCS index
Format 0 MCS-3
Format 1 MCS-5
Format 2 MCS-7
Format 3 MCS-9
Format 4 MCS-11
Assuming that the first data transmission Format is MCS-1, an adjustment manner, such as Format 0, may be arbitrarily selected from table 1, the transmit power of the terminal device 2 when the MCS index is MCS-3 is calculated, and whether the difference between the transmit power corresponding to MCS-1 and the transmit power corresponding to MCS-3 is not less than the second difference is compared, if the difference is not less than the second difference, the first adjustment manner is Format 0, and then the terminal device 2 may adjust the MCS-1 to MCS-3; in addition, the transmission power in all adjustment modes in the table may also be calculated, the difference between the transmission power corresponding to the first data transmission Format and the transmission power in different adjustment modes is calculated, and the adjustment mode not smaller than the maximum value of the second difference is selected from all the difference values, for example, when Format 3 and Format 4 in table 1 meet the requirement, if the difference between the transmission power corresponding to the first data transmission Format and the transmission power corresponding to MCS-9 is greater than the difference between the transmission power corresponding to the first data transmission Format and the transmission power corresponding to MCS-11, the first adjustment mode is Format 3.
In the embodiment of the application, the transmission power of the data is adjusted by adjusting the data transmission format, so that the utilization rate of time-frequency resources can be improved while the cross link interference between terminal devices is reduced under the condition that the requirement of the block error rate (BLER) performance is met.
In addition, in this implementation, the base station may further send a plurality of pre-configured adjustment mode tables to the terminal device, and the terminal device may select one from the plurality of adjustment mode tables to perform adjustment of the data transmission format, specifically, when the base station configures time-frequency resources of different sizes for the terminal device, in order to ensure that BLER performance is not changed, an MCS required for adjustment of the snr of the same uplink received signal may be different under the time-frequency resources of different sizes, so the terminal device may select one adjustment mode table from the plurality of adjustment mode tables according to the size of the time-frequency resources, and the terminal device may further select which adjustment mode table to use to perform adjustment of the data transmission format based on other parameters, for example, the base station may further send table 1 and table 2 to the terminal device, and when the size of the time-frequency resource block is a, the terminal device selects table 1, and when the size of the time-frequency resource block is B, the terminal equipment selects the table 2.
TABLE 2
Adjustment mode MCS index
Format 0 MCS-7
Format 1 MCS-10
Format 2 MCS-13
Format 3 MCS-16
In addition, another optional implementation manner of selecting the first adjustment manner from the N adjustment manners is as follows:
the N adjustment modes respectively correspond to a difference range, the terminal device 2 determines a third difference according to the first difference, and selects a first adjustment mode from the N adjustment modes according to the third difference, wherein the first adjustment mode is the adjustment mode corresponding to the difference range where the third difference is located. The third difference is a minimum difference between the transmission powers corresponding to the data transmission format before the adjustment of the terminal device 2 and the data transmission format after the adjustment of the terminal device 2, and a specific calculation manner of the third difference is similar to a calculation manner of the second difference in an implementation manner of selecting the first adjustment manner from the N adjustment manners, which is not described herein again.
For example, assuming that the value of N is 4, N adjustment manners respectively correspond to a difference range as shown in table 4.
TABLE 4
Adjustment mode MCS index Range of difference
Format 0 MCS-3 [-Po0,-Po1)
Format 1 MCS-5 [-Po1,-Po2)
Format 2 MCS-7 [-Po2,-Po3)
Format 3 MCS-9 [-Po3,-Po4)
Format 4 MCS-11 [-Po4,-Po5)
For example, if the third difference is P1, and is in [ -Po1, -Po2), the first adjustment manner selected by the terminal device 2 is Format 1.
Specifically, the method for calculating the transmission power of the terminal device 2 to the base station 2 according to the Format1 may refer to a calculation method that the terminal device 2 specifies in 3GPP TS36.213V8.6.0 that the transmission power is calculated on a subframe/slot i on a Physical Uplink Shared Channel (PUSCH), and may also be calculated as follows:
P(i)＝min{PCMAX(i),10log10(MPUSCH(i))+PO_PUSCH(j)+α(j)·PL+ΔTF(i)+fc(i)+ΔP}
wherein, PCMAX(i) Maximum transmission power of terminal device 2 in subframe/time slot i; mPUSCH(i) The unit of the bandwidth occupied by the PUSCH in the subframe/slot i is a Resource Block (RB); pO_PUSCH(j) Configuring parameters at high layer, j can be 0, 1 or 2, j is determined by high layer, when j can be 0 or 1, alpha (j) is cell level parameter, when j can beWhen j can take a value of 2, α (j) is 1; PL is a downlink path loss value;
Figure GDA0002487797060000111
c is the number of code blocks configured by the base station 2 for the terminal device 2, KrIs the size of the r code block, NREThe number of code blocks used for data transmission by the terminal device 2, Δ P is a third difference.
In addition, an implementation manner of selecting the first adjustment manner from the N adjustment manners that may be selected in the embodiment of the present application may also be: the N adjustment modes respectively correspond to a difference range, and the terminal device 2 selects a first adjustment mode from the N adjustment modes, where the first adjustment mode is an adjustment mode corresponding to the difference range where the first difference is located, and the first difference is a difference between the measurement result and a first threshold value.
For example, taking table 2 as an example, if the first difference is P2 and is in [ -Po2, -Po3), the adjustment mode selected by the terminal device 2 is Format 2.
In this embodiment, it should be further noted that, assuming that N is 3, the N adjustment manners may also be as shown in table 5, for example, if the MCS index of the first data transmission Format is 9, and if the selected first adjustment manner is Format1, the terminal device adjusts the MCS index of the second data transmission Format to which the first data Format is adjusted to be 4.
TABLE 5
Figure GDA0002487797060000112
Figure GDA0002487797060000121
In this embodiment, if the terminal device 2 determines that the size relationship between the measurement result and the second threshold satisfies the second predetermined size relationship, the transmission content specified by the pre-configured measurement reporting format is sent to the base station 2.
It should be noted that, when the measurement result indicates the received power of the signal, the second predetermined magnitude relationship means that the measurement result is greater than a second threshold value, in this case, the second threshold value is greater than the first threshold value; when the measurement result indicates the signal-to-noise ratio, the second predetermined size relationship means that the measurement result is smaller than the second threshold, in this case, the first threshold is larger than the second threshold, and in a specific implementation, the second predetermined size relationship may be set according to the measurement result, which is not limited in this embodiment of the present application.
The second threshold may be predefined, or may be configured to the first terminal device by the network device, and specifically, the network device sends the second threshold to the first terminal device through the configuration information.
It should be noted that in this embodiment of the application, when the size relationship between the measurement result and the second threshold satisfies the second predetermined size relationship, the terminal device 2 does not send the uplink data to the base station 2 any more, but sends the transmission content specified by the pre-configured measurement reporting format on the time-frequency resource originally allocated to send the uplink data.
For example, the preconfigured measurement reporting format may specify contents that the terminal device reports to the base station, such as interference measurement results, Channel State Information (CSI) reports, and other contents that need to be reported by the terminal device. The length of the content reported by the terminal device to the base station, the transmission power and other information can be specified.
Optionally, in this embodiment of the present application, the measurement report format may be indicated to the terminal device by the base station, or may be predefined in the terminal device and the base station. Specifically, when the measurement report format is that the base station indicates to the terminal device, the base station sends indication information to the terminal device, and if the indication information is used to indicate the first measurement report format, the terminal device sends transmission content to the base station according to the first measurement report format.
It should be noted that, in the embodiment of the present application, the configuration information may be Radio Resource Control (RRC) signaling or other configuration signaling messages, which is not limited in this embodiment of the present application.
In addition, in this embodiment of the present application, the terminal device 2 may further select one second measurement reporting format from M measurement reporting formats configured in advance according to the size of the resource block, where M is a positive integer, and then the terminal device 2 sends transmission content specified by the second measurement reporting format to the base station 2. By the method, the terminal equipment can adapt according to the size of the resource block, and the measurement reporting format which can be contained at most is selected for reporting.
For example, assume that M takes a value of 4, and M measurement report formats are shown in table 5.
TABLE 5
Measurement reporting mode Content providing method and apparatus Length of Power of
Format 0 Conflict flag 1 bit (bit) Po0
Format 1 Interference level 8bit Po1
Format 2 Inference level+CQI 8bit+8bit Po2
Format 3 Subband interference 10bit Po3
For example, if Format 3 is selected when the resource block size is K, Format2 may be selected when the resource block size is G, where G > K.
In addition, it should be noted that, as shown in fig. 1, only the situation of cross link interference between terminal devices in different base stations is shown in the communication scenario, and the situation of cross link interference may also exist between different terminal devices in the same base station, and the data transmission method is similar to the data transmission method between terminal devices in different base stations, and is not described herein again.
Based on the same concept, the embodiment of the present application further provides a data transmission apparatus, where the apparatus is configured to perform the actions or functions of the first terminal device in the foregoing method embodiment.
Based on the same concept, the embodiment of the present application further provides a data transmission apparatus, which is configured to execute the actions or functions of the network device in the foregoing method embodiment.
The embodiment of the invention also provides a communication system which comprises the data transmission device in the embodiment.
For the sake of brevity, the detailed implementation of the contents of the apparatus portion may refer to the method embodiment, and repeated details are not described herein.
As shown in fig. 5a, the apparatus 500 for data transmission in the embodiment of the present application includes a processing module 510 and a transceiver module 520, where the transceiver module 520 is configured to receive configuration information sent by a network device, and the configuration information includes N adjustment manners, where the adjustment manners are used to adjust a first data transmission format, where the first data transmission format is a data transmission format that is indicated by the network device to the apparatus 500 and is used for sending data to the network device, and N is a positive integer; the processing module 510 is configured to select a first adjustment method from the N adjustment methods according to a measurement result, where the measurement result is obtained by measuring a signal by the apparatus; determining to adjust the first data transmission format into a second data transmission format according to the first adjustment mode, wherein the transmission power corresponding to the second data transmission format is smaller than the transmission power corresponding to the first data transmission format; the transceiver module 520 is further configured to transmit data to the network device according to the second data transmission format.
In one possible design, the processing module 510 is configured to determine a first difference value after determining that the magnitude relationship between the measurement result and the first threshold satisfies a first predetermined magnitude relationship, where the first difference value is a difference value between the measurement result and the first threshold; and selecting a first adjusting mode from the N adjusting modes according to the first difference.
In one possible design, the configuration information further includes a first threshold value.
In one possible design, the processing module 510 is configured to determine a second difference value according to the first difference value, where the second difference value is a minimum difference value between transmission powers corresponding to a data transmission format before the device adjustment and a data transmission format after the device adjustment; and selecting a first adjusting mode from the N adjusting modes according to a second difference, wherein the difference between the transmitting power corresponding to the first data transmission format and the transmitting power corresponding to the second data transmission format determined according to the first adjusting mode is not smaller than the second difference.
In one possible design, the N adjustment modes respectively correspond to a difference range; the processing module 510 is configured to determine a third difference according to the first difference, where the third difference is a minimum difference between transmission powers corresponding to a data transmission format before being adjusted by the apparatus 500 and a data transmission format after being adjusted by the apparatus 500; and selecting a first adjusting mode from the N adjusting modes, wherein the first adjusting mode is an adjusting mode corresponding to the difference range where the second difference value is located.
In a possible design, if the processing module 510 determines that the size relationship between the measurement result and the second threshold satisfies the second predetermined size relationship, the transceiver module 520 sends the transmission content specified by the preconfigured measurement report format to the network device.
In a possible design, the processing module 510 is further configured to select, according to the size of the resource block, a first measurement reporting format from M measurement reporting formats configured in advance, where M is a positive integer; the transceiver module 520 is configured to send transmission content specified by the first measurement reporting format to the network device.
In a possible design, the transceiver module 520 is further configured to receive indication information sent by the network device, where the indication information is used to indicate a second measurement reporting format; if the processing module 510 determines that the size relationship between the measurement result and the second threshold satisfies the second predetermined size relationship, the transceiver module 520 sends the transmission content specified by the second measurement reporting format to the network device.
In one possible design, the measurement result is used to indicate the received power of the received signal, which is sent to the apparatus by the second terminal device.
A possible implementation manner of the apparatus 500 for data transmission shown in fig. 5a is a terminal device, specifically, when the apparatus 500 is a terminal device, a schematic diagram of a hardware structure of the terminal device is shown in fig. 5b, and includes a processor 501, a transceiver 502, and a memory 503, where a hardware entity corresponding to a processing module 510 in the apparatus 500 is the processor 501, a hardware entity corresponding to a transceiver module 520 is the transceiver 502, specifically, the transceiver 502 includes a receiver and a transmitter, and the memory 503 may be used to store a program/code preinstalled when the terminal device leaves a factory, and may also store a code used when the processor 501 executes, and the like.
The processor 501 may adopt a general Central Processing Unit (CPU), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits, to execute related operations, so as to implement the technical solution provided in the embodiment of the present application.
It should be noted that although the terminal device shown in fig. 5b only shows the processor 501, the transceiver 502 and the memory 503, in a specific implementation, it should be understood by those skilled in the art that the terminal device also contains other components necessary for normal operation. Meanwhile, according to specific needs, it should be understood by those skilled in the art that the terminal device may further include hardware components for implementing other additional functions. Furthermore, it should be understood by those skilled in the art that the terminal device may also only contain the components or modules necessary for implementing the embodiments of the present application, and not necessarily all of the components shown in fig. 5 b.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a Random Access Memory (RAM), or the like.
As shown in fig. 6a, an apparatus 600 for data transmission according to an embodiment of the present application includes: a sending module 610 and a receiving module 620, where the sending module 610 is configured to send configuration information to a first terminal device, the configuration information includes N adjustment manners, where an adjustment manner is used to adjust a first data transmission format, the first data transmission format is a data transmission format that is indicated by the apparatus 600 to the first terminal device and is used to send data to the apparatus 600, and N is a positive integer; the receiving module 620 is configured to receive data sent by the first terminal device according to a second data transmission format, where the second data transmission format is obtained by the first terminal device adjusting the first data transmission format according to a first adjustment mode selected from the N adjustment modes, and a transmission power corresponding to the second data transmission format is smaller than a transmission power corresponding to the first data transmission format.
In one possible design, the configuration information further includes a first threshold value.
In a possible design, the sending module 610 is further configured to send, to the first terminal device, indication information, where the indication information is used to indicate a measurement reporting format.
A possible implementation manner of the apparatus 600 for data transmission shown in fig. 6a is a network device, specifically, when the apparatus 600 is a network device, a hardware structure diagram of the network device is shown in fig. 6b, and the apparatus includes a processor 601, a transceiver 602, and a memory 603, where a hardware entity corresponding to a sending module 610 and a receiving module 620 in the apparatus 600 is the transceiver 602, specifically, the transceiver 602 includes a receiver and a transmitter, a hardware entity corresponding to the sending module 610 is the transmitter, a hardware entity corresponding to the receiving module 620 is the receiver, and the memory 603 may be used to store a program/code preinstalled when the network device leaves a factory, and may also be used to store a code and the like executed by the processor 601.
The processor 601 may adopt a general-purpose CPU, a microprocessor, an ASIC, or one or more integrated circuits, and is configured to execute relevant operations to implement the technical solutions provided in the embodiments of the present application.
It should be noted that although the network device shown in fig. 6b only shows the processor 601, the transceiver 602 and the memory 603, in a specific implementation process, a person skilled in the art should understand that the network device also contains other components necessary for normal operation. Also, it will be apparent to those skilled in the art that the network device may also contain hardware components that implement other additional functions, according to particular needs. Furthermore, it should be understood by those skilled in the art that the network device may also contain only the devices or modules necessary to implement the embodiments of the present application, and not necessarily all of the devices shown in fig. 5 b.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a Random Access Memory (RAM), or the like.
In addition, it should be understood that the above division of the modules in the apparatus 500 and the apparatus 600 is only a division of logical functions, and the actual implementation may be wholly or partially integrated into one physical entity or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of software called by the processing element, and part of the modules can be realized in the form of hardware. For example, the processing module may be a separate processing element, may be implemented by being integrated in a chip, or may be stored in a memory in the form of a program, and may be called and executed by a certain processing element. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software. In addition, the above receiving module is a module for controlling reception, and information can be received by a receiving device of a terminal device or a network device, such as an antenna and a radio frequency device. The above sending module is a module for controlling sending, and can send information through a sending device of a terminal device or a network device, such as an antenna and a radio frequency device.
As shown in fig. 7, a communication system 700 of the embodiment of the present application includes an apparatus 500 and an apparatus 600.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While some possible embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the embodiments of the application and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (26)

1. A method of data transmission, the method comprising:
a first terminal device receives configuration information sent by a network device, wherein the configuration information comprises N adjustment modes, the adjustment modes are used for adjusting a first data transmission format, the first data transmission format is a data transmission format which is indicated to the first terminal device by the network device and is used for sending data to the network device, and N is a positive integer;
the first terminal equipment selects a first adjusting mode from the N adjusting modes according to a measuring result, wherein the measuring result is obtained by measuring a signal by the first terminal equipment, and the measuring result is used for indicating the interference condition generated by the first terminal equipment to the communication of other equipment;
the first terminal equipment determines to adjust the first data transmission format into a second data transmission format according to the first adjustment mode, wherein the transmission power corresponding to the second data transmission format is smaller than the transmission power corresponding to the first data transmission format;
and the first terminal equipment sends data to the network equipment according to the second data transmission format.
2. The method of claim 1, wherein the selecting, by the first terminal device, the first adjustment mode from the N adjustment modes according to the measurement result comprises:
if the first terminal device determines that the magnitude relation between the measurement result and a first threshold value meets a first preset magnitude relation, determining a first difference value, wherein the first difference value is the difference value between the measurement result and the first threshold value;
and the first terminal equipment selects the first adjusting mode from the N adjusting modes according to the first difference.
3. The method of claim 2, wherein the selecting, by the first terminal device, the first adjustment manner from the N adjustment manners according to the first difference value comprises:
the first terminal equipment determines a second difference value according to the first difference value, wherein the second difference value is the minimum difference value between the transmitting powers corresponding to the data transmission format before the first terminal equipment is adjusted and the data transmission format after the first terminal equipment is adjusted;
and the first terminal equipment selects the first adjusting mode from the N adjusting modes according to the second difference, wherein the difference between the transmitting power corresponding to the first data transmission format and the transmitting power corresponding to the second data transmission format determined according to the first adjusting mode is not less than the second difference.
4. The method of claim 2, wherein the N adjustment modes correspond to a difference range, respectively;
the selecting, by the first terminal device, one adjustment mode from the N adjustment modes according to the first difference includes:
the first terminal device determines a third difference value according to the first difference value, wherein the third difference value is a minimum difference value between the transmitting powers corresponding to the data transmission format before the first terminal device adjusts and the data transmission format after the first terminal device adjusts;
and the first terminal equipment selects the first adjusting mode from the N adjusting modes according to the third difference value, wherein the first adjusting mode is an adjusting mode corresponding to the difference value range where the third difference value is located.
5. The method of any of claims 2 to 4, wherein the configuration information further comprises the first threshold value.
6. The method of claim 1, wherein the method further comprises:
and if the first terminal equipment determines that the size relationship between the measurement result and the second threshold value meets a second preset size relationship, the first terminal equipment sends transmission content specified by a pre-configured measurement reporting format to the network equipment.
7. The method of claim 6, wherein the sending, by the first terminal device, the transmission content specified by the preconfigured measurement reporting format to the network device comprises:
the first terminal equipment selects a first measurement reporting format from M measurement reporting formats configured in advance according to the size of a resource block, wherein M is a positive integer;
and the first terminal equipment sends the transmission content specified by the first measurement reporting format to the network equipment.
8. The method of claim 6, wherein the method further comprises:
the first terminal equipment receives indication information sent by the network equipment, wherein the indication information is used for indicating a second measurement reporting format;
if the first terminal device determines that the size relationship between the measurement result and the second threshold satisfies the second predetermined size relationship, the sending, by the first terminal device, transmission content specified by a pre-configured measurement reporting format to the network device includes:
and if the first terminal equipment determines that the size relationship between the measurement result and the second threshold value meets the second preset size relationship, the first terminal equipment sends the transmission content specified by the second measurement reporting format to the network equipment.
9. The method of claim 1, wherein the measurement result is used to indicate a received power at which the signal is received, the signal being sent by a second terminal device to the first terminal device.
10. A method of data transmission, the method comprising:
the method comprises the steps that a network device sends configuration information to a first terminal device, wherein the configuration information comprises N adjusting modes, the adjusting modes are used for adjusting a first data transmission format, the first data transmission format is indicated to the first terminal device by the network device and used for sending data to the network device, and N is a positive integer;
the network device receives data sent by the first terminal device according to a second data transmission format, wherein the second data transmission format is obtained by adjusting the first data transmission format by the first terminal device according to a first adjustment mode selected from the N adjustment modes according to a measurement result, and the transmission power corresponding to the second data transmission format is smaller than the transmission power corresponding to the first data transmission format; the measurement result is used for indicating the interference situation generated by the first terminal equipment to the communication of other equipment.
11. The method of claim 10, wherein the configuration information further comprises a first threshold value.
12. The method of claim 10 or 11, wherein the method further comprises:
and the network equipment sends indication information to the first terminal equipment, wherein the indication information is used for indicating a measurement reporting format.
13. An apparatus for data transmission, comprising:
a transceiver, configured to receive configuration information sent by a network device, where the configuration information includes N adjustment manners, where the adjustment manners are used to adjust a first data transmission format, the first data transmission format is a data transmission format that is indicated by the network device to the apparatus and is used to send data to the network device, and N is a positive integer;
a processor, configured to select a first adjustment manner from the N adjustment manners according to a measurement result, where the measurement result is obtained by measuring a signal by the apparatus, and the measurement result is used to indicate an interference situation generated by the apparatus for communication of another device; determining to adjust the first data transmission format into a second data transmission format according to the first adjustment mode, wherein the transmission power corresponding to the second data transmission format is smaller than the transmission power corresponding to the first data transmission format;
the transceiver is further configured to send data to the network device according to the second data transmission format.
14. The apparatus of claim 13, wherein the processor selects the first adjustment manner from the N adjustment manners based on the measurement result, and is specifically configured to:
the processor determines a first difference value after determining that the magnitude relation between the measurement result and a first threshold value meets a first preset magnitude relation, wherein the first difference value is the difference value between the measurement result and the first threshold value; and selecting the first adjusting mode from the N adjusting modes according to the first difference.
15. The apparatus of claim 14, wherein the processor selects the first adjustment manner from the N adjustment manners based on the first difference, and is specifically configured to:
the processor determines a second difference value according to the first difference value, wherein the second difference value is a minimum difference value between the transmitting powers respectively corresponding to the data transmission format before the device is adjusted and the data transmission format after the device is adjusted; and selecting the first adjustment mode from the N adjustment modes according to the second difference, wherein the difference between the transmission power corresponding to the first data transmission format and the transmission power corresponding to the second data transmission format determined according to the first adjustment mode is not less than the second difference.
16. The apparatus of claim 14, wherein the N adjustment modes correspond to a difference range respectively;
the processor selects the first adjustment manner from the N adjustment manners according to the first difference, and is specifically configured to:
the processor determines a third difference value according to the first difference value, wherein the third difference value is a minimum difference value between the transmitting powers respectively corresponding to the data transmission format before the device is adjusted and the data transmission format after the device is adjusted; and selecting the first adjusting mode from the N adjusting modes according to a third difference value, wherein the first adjusting mode is an adjusting mode corresponding to the difference value range where the third difference value is located.
17. The apparatus of any of claims 14 to 16, wherein the configuration information further comprises the first threshold value.
18. The apparatus of claim 13, wherein the transceiver is further configured to:
and if the processor determines that the size relationship between the measurement result and the second threshold value meets a second preset size relationship, transmitting transmission content specified by a pre-configured measurement reporting format to the network equipment.
19. The apparatus of claim 18, wherein the processor is further configured to:
selecting a first measurement reporting format from M measurement reporting formats configured in advance according to the size of a resource block, wherein M is a positive integer;
the transceiver sends, to the network device, transmission content specified by a preconfigured measurement report format, which is specifically used for:
and the transceiver sends the transmission content specified by the first measurement reporting format to the network equipment.
20. The apparatus of claim 18, wherein the transceiver is further configured to:
receiving indication information sent by the network equipment, wherein the indication information is used for indicating a second measurement reporting format;
if the processor determines that the size relationship between the measurement result and the second threshold satisfies the second predetermined size relationship, the transceiver sends, to the network device, transmission content specified by a pre-configured measurement reporting format, which is specifically configured to:
and if the processor determines that the size relationship between the measurement result and the second threshold value meets the second predetermined size relationship, the transceiver sends the transmission content specified by the second measurement reporting format to the network device.
21. The apparatus of claim 13, wherein the measurement result is indicative of a received power at which the signal is received, the signal being sent to the apparatus by a second terminal device.
22. An apparatus for data transmission, comprising:
a transmitter, configured to send configuration information to a first terminal device, where the configuration information includes N adjustment manners, where the adjustment manners are used to adjust a first data transmission format, the first data transmission format is a data transmission format that is indicated by the apparatus to the first terminal device and is used to send data to the apparatus, and N is a positive integer;
a receiver, configured to receive data sent by the first terminal device according to a second data transmission format, where the second data transmission format is obtained by adjusting, by the first terminal device, the first data transmission format according to a first adjustment manner selected from the N adjustment manners according to a measurement result, and a transmission power corresponding to the second data transmission format is smaller than a transmission power corresponding to the first data transmission format; the measurement result is used for indicating the interference situation generated by the first terminal equipment to the communication of other equipment.
23. The apparatus of claim 22, wherein the configuration information further comprises a first threshold value.
24. The apparatus of claim 22 or 23, wherein the transmitter is further configured to:
and sending indication information to the first terminal equipment, wherein the indication information is used for indicating a measurement reporting format.
25. A computer storage medium, characterized in that a computer program is stored which, when being executed by a processor, is adapted to carry out the method of any one of claims 1 to 12.
26. A communication system comprising means for data transmission according to any one of claims 13 to 21 and means for data transmission according to any one of claims 22 to 24.
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