CN108668371B - Data transmission method and device and terminal - Google Patents
Data transmission method and device and terminal Download PDFInfo
- Publication number
- CN108668371B CN108668371B CN201710193005.4A CN201710193005A CN108668371B CN 108668371 B CN108668371 B CN 108668371B CN 201710193005 A CN201710193005 A CN 201710193005A CN 108668371 B CN108668371 B CN 108668371B
- Authority
- CN
- China
- Prior art keywords
- carrier
- data
- transmitted
- carriers
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The disclosure provides a data transmission method and device, and a terminal, wherein the method comprises the following steps: the method comprises the steps that a sending end sends data to be transmitted on a plurality of carriers on an edge link side link, wherein the sending end at least sends control information on a first carrier, the control information is used for indicating the position of the data to be transmitted, and only the data to be transmitted is sent on a second carrier in a second carrier set. By adopting the technical scheme, the position of the carrier wave or the position of the resource pool where the data to be transmitted are indicated by the control information on the first carrier wave is realized, so that the data to be transmitted on a plurality of second carrier waves is convenient to uniformly manage, the cross-carrier scheduling on the sidelink is realized, and the problem that the cross-carrier scheduling on the sidelink cannot be realized in the related art is solved.
Description
Technical Field
The disclosure relates to the field of communication, in particular to a data transmission method and device and a terminal.
Background
In the related art, with the rapid development of the economic society, the amount of the reserved automobiles in China is rapidly increased, and road traffic accidents frequently occur, so that the reserved automobiles in China become one of important factors affecting the public safety feeling in China in recent years. Technologies for improving safety of vehicles are mainly classified into passive safety technologies and active safety technologies. The passive safety technology is used for protecting personnel and articles in and out of the vehicle after an accident occurs; the active safety technology is used for preventing and reducing accidents of vehicles and avoiding personnel from being injured. Active safety technology is an important point and trend of modern vehicle safety technology development.
The internet of vehicles system is a system for providing vehicle information through devices such as sensors, vehicle-mounted terminals and electronic tags which are mounted on vehicles, realizing interconnection and intercommunication among vehicles and vehicles V2V (Vehicle to Vehicle is simply called V2V), vehicles and human V2P (Vehicle to Person is simply called V2P) and vehicles and infrastructure V2I (Vehicle to Infrastructure) by adopting various communication technologies, extracting, sharing and the like on an information network platform, and effectively controlling the vehicles and providing comprehensive services. The vehicle networking can realize vehicle information notification and collision danger early warning based on communication, and real-time information interaction among vehicles, vehicles and road side facilities is realized by utilizing an advanced wireless communication technology and a new generation information processing technology, so that the vehicle networking informs each other of the current state (comprising the position, speed, acceleration and running path of the vehicle) and the known road environment information, cooperatively senses the road danger condition, provides various collision early warning information in time, prevents the occurrence of road traffic safety accidents, and becomes a new idea for solving the road traffic safety problem at present.
With the development of new mobile communication technologies in recent years, solving the internet of vehicles communication based on long term evolution (Long Term Evolution, abbreviated as LTE) technology is one of hot research. In the Device-to-Device (D2D) communication mode of the LTE system, when there is a service between User Equipments (UE) to be transmitted, service data between UEs is not forwarded by a base station, but is directly transmitted to a target UE by a data source UE through an air interface, fig. 1 is a schematic diagram of a D2D communication structure according to the related art, as shown in fig. 1, including a base station 1, a terminal UE1, and a terminal UE2, where the communication mode has a characteristic that is obviously different from a conventional cellular system communication mode, for V2V communication of the internet of vehicles, the near-field communication between vehicles can use the D2D communication mode, so as to achieve the effects of saving wireless spectrum resources, reducing data transmission pressure of the core network, reducing system resource occupation, increasing spectrum efficiency of the cellular communication system, reducing terminal transmission power consumption, and saving network operation cost to a great extent.
In the related art protocol, the transmitting end UE only supports scheduling transmission of single carrier data on the sidelink link, but does not support cross-carrier scheduling.
Aiming at the problem that cross-carrier scheduling on a sidelink cannot be realized in the related technology, no effective solution exists at present.
Disclosure of Invention
The embodiment of the disclosure provides a data transmission method and device and a terminal, which at least solve the problem that cross-carrier scheduling on a sidelink cannot be realized in the related art.
According to an embodiment of the present disclosure, there is provided a data transmission method including:
the method comprises the steps that a sending end sends data to be transmitted on a plurality of carriers on an edge link, wherein the sending end at least sends control information on a first carrier, and only sends the data to be transmitted on a second carrier in a second carrier set, the first carrier and the second carrier are carriers in the plurality of carriers, and the control information is used for indicating the position of the data to be transmitted.
Optionally, the control information sent on the first carrier includes at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
Optionally, the control information carries resource ID information for indicating that the data to be transmitted is sent by the sending end, where the data on multiple carriers in carrier aggregation CA sent by the sending end has the same resource ID information.
Optionally, the position of the first carrier in the plurality of carriers is determined by one of: the transmitting end is preconfigured; according to the signaling indication of the base station; the carrier wave corresponding to the synchronous source selected by the transmitting end in the synchronous process; the carrier wave used by the service cell where the sending terminal resides; selecting a sending resource pool from a preset or base station configured sending resource pool list and a carrier list corresponding to the sending resource pool list according to a resource pool selection strategy, and determining a carrier where the resource pool is located as the first carrier, wherein the resource pool selection strategy at least comprises one of the following steps: randomly selecting, calculating according to the identification information of the transmitting end, calculating according to the geographic position of the transmitting end, and selecting according to the type of the transmitting end.
Optionally, the control information on the first carrier includes: one centralized scheduling information or a plurality of independent scheduling information.
Optionally, when a plurality of the independent scheduling information is transmitted on the first carrier, the plurality of independent scheduling information is located on one transmission time interval (Transmission Time Interval, abbreviated TTI) or on a plurality of transmission time intervals TTI.
Optionally, when the control information sent on the first carrier is a centralized scheduling information, the control information is used to indicate data resource information of the data to be transmitted on all the carriers used by the sending end.
Optionally, when the control information sent on the first carrier is a plurality of independent scheduling information, each piece of control information is used for indicating the data resource information of the data to be transmitted on only one carrier.
Optionally, the indication information corresponding to the carrier on which the data to be transmitted is located is a first number index of all available carriers on the side link by the transmitting end, and the first number index of each available carrier is determined by one of the following modes: pre-configuring; according to the signaling indication of the base station.
Optionally, the indication information corresponding to the resource pool of the carrier where the data to be transmitted is located is a second number index of all transmission resource pools of the transmitting end on the carrier, and the second number index of each transmission resource pool is determined by one of the following modes: pre-configuring; according to the signaling indication of the base station.
Optionally, the indication information corresponding to the carrier on which the data to be transmitted is located is a third number index of a transmission resource pool on all carriers on the sidelink by the transmitting end, where the carrier position used by the transmitting end and the configuration information of the used transmission resource pool are determined according to the third number index, and the third number index of each transmission resource pool is determined by one of the following modes: pre-configuring; according to the signaling indication of the base station.
Optionally, the indication mode of the indication information contained in the control information includes one of the following: the direct indication mode is to add an indication domain in the control information for indication; and indicating through the indirect indication mode according to the corresponding relation between the physical side link control channel resource position on the first carrier and the carrier and/or the resource pool which are correspondingly indicated.
Optionally, the direct indication is adopted for the carrier position corresponding to the carrier where the data to be transmitted is located, and the indirect indication is adopted for the resource pool information of the carrier where the data to be transmitted is located; or the indirect indication is adopted for the carrier position corresponding to the carrier where the data to be transmitted is located, and the direct indication is adopted for the resource pool information of the carrier where the data to be transmitted is located.
According to another embodiment of the present disclosure, there is also provided a data transmission method including:
the method comprises the steps that a receiving end receives data to be transmitted on a plurality of carriers on a sidelink through a multi-carrier data transmission technology, wherein the receiving end obtains the data to be transmitted, which is transmitted on the plurality of carriers by a sending end, according to control information on a first carrier, the first carrier is a carrier in the plurality of carriers, and the control information is used for indicating the position of the data to be transmitted.
Optionally, the control information on the first carrier includes at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
According to another embodiment of the present disclosure, there is provided a data transmission apparatus including: a determining module, configured to determine to send data to be transmitted on a plurality of carriers on a sidelink (sidelink); the transmission module is configured to transmit at least control information on a first carrier, and transmit only the data to be transmitted on a second carrier in a second carrier set, where the first carrier and the second carrier are carriers in the plurality of carriers, and the control information is used to indicate a location where the data to be transmitted is located.
Optionally, the control information sent on the first carrier includes at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
According to another embodiment of the present disclosure, there is provided a data transmission apparatus including: the receiving module is used for receiving data to be transmitted on a plurality of carriers on the sidelink; the acquisition module is used for acquiring the data to be transmitted, which are transmitted by the transmitting end on the plurality of carriers, according to control information on a first carrier, wherein the first carrier is a carrier in the plurality of carriers, and the control information is used for indicating the position of the data to be transmitted.
Optionally, the control information on the first carrier includes at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
According to another embodiment of the present disclosure, there is also provided a terminal including: a first processor configured to determine to transmit data to be transmitted on a plurality of carriers on a side link; a first communication device, configured to send at least control information on a first carrier, and send only the data to be transmitted on a second carrier in a second carrier set; the first carrier and the second carrier are carriers in the plurality of carriers, and the control information is used for indicating a position where the data to be transmitted is located.
Optionally, the control information on the first carrier includes at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
According to another embodiment of the present disclosure, there is also provided a terminal including: the second communication device is used for receiving data to be transmitted on a plurality of carriers on the sidelink through a multi-carrier data transmission technology; the second processor is configured to obtain the data to be transmitted, which is transmitted by the transmitting end on the multiple carriers, according to control information on a first carrier, where the first carrier is a carrier in the multiple carriers, and the control information is used to indicate a position where the data to be transmitted is located.
Optionally, the control information on the first carrier includes at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
According to another embodiment of the present disclosure, there is also provided a storage medium including a stored program, wherein the program, when run, performs the method described in any one of the above.
Through the method and the device, the sending end sends data to be transmitted on a plurality of carriers on a sidelink, wherein the sending end at least sends control information on a first carrier, the control information is used for indicating the position of the data to be transmitted, and only the data to be transmitted is sent on a second carrier in a second carrier set. By adopting the technical scheme, the position of the carrier wave or the position of the resource pool where the data to be transmitted are indicated by the control information on the first carrier wave is realized, so that the data to be transmitted on a plurality of second carrier waves is convenient to uniformly manage, the cross-carrier scheduling on the sidelink is realized, and the problem that the cross-carrier scheduling on the sidelink cannot be realized in the related art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and do not constitute an undue limitation on the disclosure. In the drawings:
fig. 1 is a schematic diagram of a D2D communication structure according to the related art;
fig. 2 is a block diagram of a hardware structure of a mobile terminal of a data transmission method according to an embodiment of the present disclosure;
FIG. 3 is a flow chart of a data transmission method according to an embodiment of the present disclosure;
Fig. 4 is a schematic diagram of multicarrier data transmission on a sidelink according to a UE in the related art;
fig. 5 is a schematic diagram of a frame structure of an LTE system according to the related art;
fig. 6 is a schematic diagram of cross-carrier scheduling communications transmitting only one centralized scheduling control information on a first carrier according to example 5 of the present disclosure;
fig. 7 is a schematic diagram of a structure of the centralized scheduling side link control indication information SCI according to example 5 of the present disclosure;
fig. 8 is a schematic diagram of transmitting multiple independent control information on a first carrier when scheduling communications across carriers according to example 5 of the present disclosure;
fig. 9 is a block diagram of a data transmission apparatus according to an embodiment of the present disclosure;
fig. 10 is a block diagram ii of a data transmission apparatus according to an embodiment of the present disclosure.
Detailed Description
Example 1
Embodiments of the present application provide a mobile communication network (including but not limited to an LTE mobile communication network), where a network architecture of the network may include a network side device (e.g., a base station) and a terminal. In this embodiment, a data transmission method capable of operating on the network architecture is provided, and it should be noted that the operating environment of the data transmission method provided in the embodiment of the present application is not limited to the network architecture.
The method embodiment provided in the first embodiment of the present application may be executed in a terminal, a computer terminal, or a similar computing device. Taking the operation on the terminal as an example, fig. 2 is a block diagram of the hardware structure of the terminal of a data transmission method according to an embodiment of the present disclosure. As shown in fig. 2, the terminal 20 may include one or more (only one is shown in the figure) processors 202 (the processors 202 may include, but are not limited to, a processing means such as a microprocessor MCU or a programmable logic device FPGA), a memory 204 for storing data, and a communication means 206 for communication functions. It will be appreciated by those of ordinary skill in the art that the configuration shown in fig. 2 is merely illustrative and is not intended to limit the configuration of the electronic device described above. For example, the terminal 20 may also include more or fewer components than shown in fig. 2, or have a different configuration than shown in fig. 2.
The memory 204 may be used to store software programs and modules of application software, such as program instructions/modules corresponding to the data transmission method in the embodiments of the present disclosure, and the processor 202 executes the software programs and modules stored in the memory 204 to perform various functional applications and data processing, i.e., implement the above-described method. Memory 204 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 204 may further include memory located remotely from processor 202, which may be connected to terminal 20 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The communication device 206 is used to receive or transmit data via a network. The specific examples of the network described above may include a wireless network provided by a communication provider of the terminal 20. In one example, the communication device 206 includes a network adapter (Network Interface Controller, NIC) that can connect to other network equipment through a base station to communicate with the internet. In one example, the communication device 206 may be a Radio Frequency (RF) module for communicating with the internet wirelessly.
Before describing the embodiments of the present disclosure, it should be added that the sidelinks described in this document are meant to be sidelink technologies.
In this embodiment, a data transmission method running in a terminal is provided, fig. 3 is a flowchart of the data transmission method according to an embodiment of the disclosure, and as shown in fig. 3, the flowchart includes the following steps:
step S302, a transmitting end determines to transmit data to be transmitted on a plurality of carriers on a sidelink through a multi-carrier data transmission technology;
in step S304, the transmitting end sends the data to be transmitted on a plurality of carriers on the sidelink, where the transmitting end sends at least control information on a first carrier and only sends the data to be transmitted on a second carrier in a second carrier set.
It should be noted that, in the above embodiment, the first carrier and the second carrier are carriers in the plurality of carriers, and the control information is used to indicate the location of the data to be transmitted.
Through the steps, according to the base station signaling indication or the pre-configuration information, the sending end sends data to be transmitted on a plurality of carriers on the sidelink, wherein the sending end at least sends control information on a first carrier, the control information is used for indicating the position of the data to be transmitted, and only sends the data to be transmitted on a second carrier in a second carrier set. By adopting the technical scheme, the position of the carrier wave or the position of the resource pool where the data to be transmitted are indicated by the control information on the first carrier wave is realized, so that the data to be transmitted on a plurality of second carrier waves is convenient to uniformly manage, the cross-carrier scheduling on the sidelink is realized, and the problem that the cross-carrier scheduling on the sidelink cannot be realized in the related art is solved.
Optionally, the control information on the first carrier includes at least one of: indication information corresponding to the carrier wave in which the data to be transmitted are located; indication information corresponding to a resource pool of a carrier wave where the data to be transmitted is located.
Optionally, the control information carries Source ID information for indicating the resource identifier sent by the sending end by the data to be transmitted, where the data on multiple carriers in the carrier aggregation CA sent by the sending end has the same Source ID information.
Optionally, the position of the first carrier in the plurality of carriers is determined by one of: the transmitting end is preconfigured; according to the signaling indication of the base station; the transmitting end selects carrier waves corresponding to the synchronous source in the synchronous process; the carrier wave used by the service cell where the sending terminal resides; selecting a sending resource pool from a preset or base station configured sending resource pool list and a carrier list corresponding to the sending resource pool list according to a resource pool selection strategy, and determining a carrier where the resource pool is located as the first carrier, wherein the resource pool selection strategy at least comprises one of the following steps: randomly selecting, calculating according to the identification information of the transmitting end, calculating according to the geographic position of the transmitting end, and selecting according to the type of the transmitting end.
Optionally, the control information on the first carrier includes: one centralized scheduling information or a plurality of independent scheduling information.
Optionally, when a plurality of the independent scheduling information is transmitted on the first carrier, the plurality of independent scheduling information is located on one transmission time interval or a plurality of transmission time intervals.
Optionally, when the control information on the first carrier is a centralized scheduling information, the control information includes: and the sending end uses the data resource information of the data to be transmitted on all the used carriers.
Optionally, when the control information on the first carrier is a plurality of independent scheduling information, each of the control information is used to indicate the data resource information of the data to be transmitted on a single carrier. It should be added that, in addition to the control information, the first carrier may also send data to be transmitted, that is, the plurality of independent scheduling information may indicate data resource information of the data to be transmitted on the first carrier and/or the second carrier.
Optionally, the indication information corresponding to the carrier on which the data to be transmitted is located is the first number index of all available carriers on the sidelink by the transmitting end, and the first number index of each available carrier is determined by one of the following modes: pre-configuring; according to the signaling indication of the base station.
Optionally, the indication information corresponding to the resource pool of the carrier on which the data to be transmitted is located is a second number index of all transmission resource pools of the transmitting end on the carrier, and the second number index of each transmission resource pool is determined by one of the following modes: pre-configuring; according to the signaling indication of the base station.
Optionally, the indication information corresponding to the carrier wave where the data to be transmitted is located is a third number index of a transmission resource pool on all carrier waves of the sender on the sidelink, where the carrier wave position used by the sender and the information of the used transmission resource pool are determined according to the third number index, and the third number index of each transmission resource pool is determined by one of the following modes: pre-configuring; according to the signaling indication of the base station.
Optionally, the indication manner of the indication information contained in the control information includes one of the following: adding an indication field in the control information to perform direct indication, which can be called a direct indication mode; the indirect indication by the correspondence between the PSCCH resource location on the first carrier and the corresponding indicated carrier and/or resource pool may be referred to as an indirect indication manner.
Optionally, direct indication is performed on the carrier position corresponding to the carrier where the data to be transmitted is located, and indirect indication is performed on the resource pool information indicating the carrier where the data to be transmitted is located; or indirectly indicating the carrier position corresponding to the carrier where the data to be transmitted is located, and directly indicating the resource pool information of the carrier where the data to be transmitted is located.
According to another embodiment of the present disclosure, there is also provided a data transmission method, which may be applied to a receiving end, including:
the receiving end receives data to be transmitted on a plurality of carriers on a sidelink through a multi-carrier data transmission technology, wherein the receiving end acquires the data to be transmitted, which is transmitted on the plurality of carriers by a sending end, according to control information on a first carrier, wherein the first carrier is a carrier in the plurality of carriers, and the control information is used for indicating the position of the data to be transmitted.
Optionally, the control information on the first carrier includes at least one of: indication information corresponding to the carrier wave in which the data to be transmitted are located; indication information corresponding to a resource pool of a carrier wave where the data to be transmitted is located.
It should be added that the first carrier refers to a carrier on the sidelink link that transmits control information, the second carrier set refers to a set of all other available carriers except the first carrier on the sidelink link, and the UE only transmits data on the second carrier.
The following detailed description is of preferred embodiments of the present disclosure.
The R14V 2V communication defined in the related art adopts a broadcasting manner, and the transmitting end can send corresponding service information on at most two carriers, which are generally used to realize the transmission of basic security service between vehicles or between vehicles and other devices, but the technical scheme in the related art, for new V2X service, such as road environment sensing data transmission between vehicles, unmanned data transmission, etc., cannot well meet the communication requirement of V2X from the aspect of data rate or time delay, so that the UE capability is enhanced, the problem can be better solved by the sidelink multi-carrier data transmission technology, and fig. 4 is a schematic diagram of the multi-carrier data transmission on the sidelink according to the UE in the related art, as shown in fig. 4, TX UE represents the transmitting end UE, and RX UE represents the receiving end UE.
In the related art, under the configuration of a base station or the pre-configuration of a UE, the UE may select a physical s idel ink control channel (Physical Sidelink Control Channel, abbreviated as PSCCH) and a PSSCH resource on a sidelink link to perform data transmission, but for larger data services, larger bandwidth support is often required, and a suitable continuous large bandwidth may not be found on the sidelink link to perform data transmission, so that a transmitting end may need to aggregate multiple carriers to perform data transmission simultaneously, so as to meet the requirements of large data volume and low latency of new services. When the transmitting end needs to transmit data on a plurality of carriers, it needs to transmit scheduling information and data information corresponding to each carrier. The current protocol determines that the transmitting UE only supports scheduling transmission of single carrier data on the sidelink link, but does not support cross-carrier scheduling.
The technical solution in the preferred embodiments of the present disclosure aims to solve the problems in the related art described above. For the purpose of making the objects, technical solutions and advantages of the preferred embodiments of the present disclosure more apparent, the embodiments of the present disclosure will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.
The network side comprises one or more of the following entities: an evolved base station (eNB), a relay station (RN), a cell coordination entity (MCE), a Gateway (GW), a mobility management device (MME), and an Evolved Universal Terrestrial Radio Access Network (EUTRAN) operation management and maintenance (OAM) manager are described below by taking the eNB as an example of a network-side entity.
In a conventional cellular communication system, radio resources of a terminal UE are evolvedThe in-cell base station eNB (evolved NodeB) uniformly controls scheduling, and the eNB instructs downlink or uplink resources configured by the UE, and the UE receives data signals transmitted by the eNB on the corresponding downlink resources or transmits signals to the eNB on the uplink resources according to the configuration instruction of the eNB. In the LTE system, radio resources are divided into resources in units of radio frames in the time domain, and fig. 5 is a schematic diagram of a frame structure of the LTE system according to the related art, and as shown in fig. 5, each radio frame is 10ms, including 10 subframes, each subframe is 1ms, and is divided into 2 slots of 0.5 ms. When the system frame structure adopts a common cyclic prefix (Normal Cyclic Prefix, abbreviated as Normal CP), each subframe contains 14 Single-carrier frequency division multiple access (SC-carrier Frequency Division Multiple Access, abbreviated as SC-FDMA) symbols or orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, abbreviated as OFDM) symbols, and each slot includes 7 symbols. When the system frame structure adopts an Extended cyclic prefix (Extended Cyclic Prefix, abbreviated CP), each subframe contains 12 symbols, and each slot includes 6 symbols. In the frequency domain, the resources are divided in units of subcarriers, each subcarrier containing 15kHz or 7.5kHz resources. According to the above time-domain and frequency-domain Resource units, the minimum unit of the time-frequency Resource scheduled by eNB for UE is Resource Block (RB), and the RB is defined as 1 slot in the time domain and continuous in the frequency domain Subcarrier, & gt>Wherein the saidIndicating a number of subcarriers of 12 or 24.
In an LTE-based D2D communication system, a system uplink subframe is used as a physical side link shared channel (Physical Sidelink Shared Channel, abbreviated as PSSCH) subframe for transmitting D2D data. The D2D transmitting end indicates the PSSCH resource used in the side link (i.e., D2D link) control information (Sidelink Control Information, abbreviated SCI). As a special application of the D2D communication method, the V2V system may use a D2D communication scheme, that is, use SCI information to indicate a corresponding data channel resource configuration, and transmit V2V data information on the corresponding data channel resource.
The current protocol has determined that the V2V transmits data information on the sidelink link through the sensing device sending in the vehicle, and selects a proper time-frequency resource. The transmitting end can use 2 carriers at most, and the settings can basically meet the transmission of the traditional basic security service, but for the new V2X service in certain scenes, a larger data rate and lower time delay can be needed to ensure the effective transmission of the data information. There is some enhancement in UE capability. Among them, the carrier aggregation technique is a technique for solving the problem.
When the transmitting UE performs data transmission on multiple carriers, the receiving end has to blindly check the control information, and then demodulate the data information indicated by the received control information according to the control information. In order to reduce the blind detection complexity of the receiving UE, in the preferred embodiment of the present disclosure, control information corresponding to the data information sent on all carriers may be sent on carriers of the same sidelink link.
The content of the control information SCI on the sidelink of V2X specified by the current protocol in the related art is:
Priority-3bits as defined in section 4.4.5.1of[7]
-Resource reservation–4bits as defined in section 14.2.1of[3]
-Frequency resource location–bits as defined in section 14.1.1.4C of[3].
-Time gap between initial transmission and retransmission-4bits as defined in section 14.1.1.4C of[3]
-Modulation and coding scheme–5bits as defined in section 14.2.1of[3]
-Retransmission index–1bit as defined in section 14.2.1of[3].
-Reserved information bits are added until the size of SCI format 1is equal to 32bits.The reserved bits are set to zero.
no carrier related information exists in the SCI content of V2X, and the SCI can only indicate the data resource information of the current carrier, that is, the transmitting end only supports single carrier data transmission and does not have the capability of cross carrier scheduling.
In order to implement carrier aggregation transmission of a sidelink link, carrier indication information needs to be added to control information when cross-carrier scheduling is selected. In the preferred embodiment, the carrier on which the control information is to be transmitted may be regarded as the first carrier on the transmitting side, and the carrier on which only the data is to be transmitted may be regarded as the second carrier on the transmitting side, and in addition, since the receiving side does not have the resource pool information on the second carrier when receiving the data on the second carrier, the control information on the first carrier is able to indicate not only the information of the second carrier on which the data is to be transmitted but also the resource pool information on the second carrier.
In order to achieve the above purpose of carrier indication, the preferred embodiment may index the number of all the available carriers of the UE, and may also index the number of the transmission resource pool on each carrier. The control instruction information indicates the transmission resource pool used on the carrier wave and the carrier wave, and the instruction information can be a displayed instruction or an implicit corresponding relation mapping instruction, so that the receiving end can effectively receive data through the instruction information.
In addition, since the transmitting end transmits data on a plurality of carriers, the receiving end needs to identify which data is transmitted by which transmitting end, so that the receiving end can select, combine and other processes of data at a physical layer or a higher layer, and therefore, which data is transmitted by which transmitting end needs to be marked. Similarly, the transmitting end can continue to add the indication information in the control information for data identification of the receiving end.
The following are specific implementations of the preferred embodiments of the present disclosure, each of which includes a number of examples.
The specific implementation method comprises the following steps: adding an indication bit in the control information, explicitly (directly) indicating carrier and resource pool information
Example 1 of the specific implementation method one:
the method comprises the steps that a transmitting end transmits data on a certain second carrier, UE selects PSCCH resources on a first carrier to transmit control information SCI corresponding to the data on the second carrier, and if all available carrier numbers of the UE are carrier 1, carrier 2, … … and carrier k, the k carriers are numbered, log2 (k) is rounded up to k ', and k' bit information can be used for correspondingly indicating the k carriers;
similarly, assuming that the transmission resource pool on a certain carrier is resource pool 1, resource pools 2 and … …, and resource pool n, the n resource pools are also numbered, and log2 (n) is rounded up to n ', then n' bit information can be used to indicate the n resource pools correspondingly;
then, compared with the V2V sidelink control information defined by R14, the control information needs to be added with information of (k '+n') bit for carrier indication and resource pool indication.
Example 2 of the specific implementation method one:
similar to example 1, when the transmitting end transmits data on a certain second carrier, the UE selects PSCCH resources on the first carrier to transmit control information SCI corresponding to the data on the second carrier, and if all carriers available to the UE are numbered as carrier 1, carrier 2, … …, and carrier k, the k (k > =m) are numbered, and log2 (k) is rounded up to k ', k' bit information can be used to indicate the k carriers correspondingly;
But for the same transmitting UE, assuming that it uses the same resource pool on the second carrier as on the first carrier, the overhead of the n' bit can be saved compared to example 1,
compared with V2V sidelink control information defined by R14, the control information needs to be added with k' bit information to carry out carrier indication and resource pool indication.
Example 3 of the specific implementation method one:
and if the transmitting end transmits data on a certain second carrier, the UE selects PSCCH resources on the first carrier to transmit control information SCI corresponding to the data on the second carrier, and the number of all available carriers of the UE is k.
The number of the transmission resource pools on the first carrier is N1, the number of the resource pools on the second carrier is N2 and … …, the number of the transmission resource pools on the kth carrier is nk, then the total number of the transmission resource pools on all carriers is n= (n1+n2+ … … +nk), the number of the N transmission resource pools is indexed, and log2 (N) is rounded up to N ', so that the information of the N' bit can be used to obtain a position to indicate which transmission resource pool on which carrier is used.
Then, compared with the V2V sidelink control information defined by R14, the information of N' bit needs to be added in each control information to perform carrier indication and resource pool indication.
Example 4 of the specific implementation method one:
and the transmitting terminal selects the first carrier and the second carrier according to the base station signaling or the pre-configuration information, and the transmitting UE selects PSCCH resources on the first carrier to transmit control indication information, wherein the control indication information comprises data resource indication information on all carriers.
Specifically, similar to example 1, all k carriers available to the UE are first numbered, and the numbered carriers are sorted, e.g., number 0 represents the first carrier, number 1 represents carrier 1 in the second carrier, number 2 represents carrier 2 in the second carrier, and so on.
Again, if there is a certain order at the time of default carrier aggregation, for example, when carrier 0 and carrier 2 are used together, the indicated carrier order is considered to be from small to large according to the number of carriers, then the possible kinds of all carriers used by the UE areThe number of the two-dimensional space-saving type,
if the indication of the carriers is not in order at the time of carrier aggregation, then the possible categories of all carriers used by the UE areThe number of the two-dimensional space-saving type,
then, the J cases can be numbered and indexed, log2 (J) is used for rounding up to J ', and then the information of J' bit can be used for carrying out one-to-one correspondence on the service conditions of the carriers;
Then, number indexes are carried out on all the sending resource pools on all the sequenced carriers, and if n resource pools are all on all the carriers, log2 (n) is used to be rounded up to n ', and the information of using the n' bit can indicate the resource pools used by the sending UE on each carrier.
Then, information of (J '+k×n') bit needs to be added to V2V sidelink control information defined by R14 for carrier indication and resource pool indication.
Example 5 of the first embodiment
Fig. 6 is a schematic diagram of cross-carrier scheduling communication according to example 5 of the present disclosure, where only one centralized scheduling control information is sent on the first carrier by the sending end according to the base station signaling or the pre-configuration information, and as shown in fig. 6, data0, data1, etc. represent each data, and the sending UE selects PSCCH resources on the first carrier to send one centralized control indication information SCI, where the control indication information includes independent scheduling data resource control indication information SCI on all used carriers. Wherein, the independent scheduling indication information SCI includes carrier indication information and resource pool indication information. And then the independent control indication SCI in the centralized control indication SCI sends corresponding data on the carrier position corresponding to the independent control indication SCI. Fig. 7 is a schematic diagram of a structure of the centralized scheduling side link control indication information SCI according to example 5 of the present disclosure.
Fig. 8 is a schematic diagram of transmitting multiple independent control information on a first carrier when performing cross-carrier scheduling communication according to example 5 of the present disclosure, where, as shown in fig. 8, a transmitting end transmits multiple control indication information SCIs on the first carrier, and each SCI includes carrier indication information or resource pool indication information of one carrier.
Example 6 of the specific implementation method one:
the transmitting end selects a first carrier and a second carrier according to the base station signaling or the pre-configuration information, and the transmitting UE selects 1 resource position on the first carrier to transmit control indication information, wherein the control indication information comprises data resource indication information on all carriers. Similarly to example 4, if it is assumed that the transmission resource pool configuration on each carrier is the same by default, we reduce the n' bit information indicating the resource pool information on each carrier compared to example 4.
Compared with V2V sidelink control information defined by R14, J' bit information is added in each control information to carry out carrier indication and resource pool indication.
Example 7 of the first embodiment
When the transmitting end transmits the message on the plurality of carriers, since the related information about source is not indicated in the current control information SCI, in order for the receiving end to effectively identify the message from the transmitting end on the plurality of carriers, the indication information about the transmitting source can be added in the SCI on the first carrier, so that the receiving UE can determine whether to receive the packets or not through the source information in the SCI.
The specific implementation method is as follows: implicit correspondence of PSCCH resources on a first carrier with correspondingly indicated carriers and/or resource pools
Example 8 of the second embodiment
If the UE selects PSCCH resources on a first carrier to send control information SCI corresponding to data on a second carrier, and if all available carriers of the UE are carrier 1, carrier 2, … …, and carrier k are k carriers, the PSCCH on the first carrier is mapped to each carrier position according to a certain correspondence, for example, m PSCCH resources (m is greater than or equal to k), and then the correspondence between PSCCH resources and carrier positions may be set to mod (k, m) as the corresponding subcarrier position. When SCI on the i-th carrier is transmitted on the first carrier, PSCCH locations satisfying mod (k, m) =i are found and transmitted.
Secondly, assuming that a sending resource pool on a certain carrier is a resource pool 1, a resource pool 2, … … and a resource pool n, numbering the n resource pools, and rounding up log2 (n) to n ', then n' bit information can be used to correspondingly indicate the n resource pools;
then, compared with the V2V sidelink control information defined by R14, the control information needs to be added with the resource pool indication information of n' bit to perform carrier indirect indication and resource pool direct indication.
Example 9 of the implementation of method two
The method comprises the steps that a transmitting end transmits data on a certain carrier, UE selects PSCCH resources on a first carrier to transmit control information SCI corresponding to data on a second carrier, all carriers available to the UE are assumed to be carrier 1, carrier 2 and … …, carrier k is numbered, log2 (k) is rounded up to k ', and k' bit information can be used for correspondingly indicating the k carriers;
secondly, the UE selects PSCCH resources on the first carrier to send control information SCI corresponding to data on the second carrier, and assuming that the number of the sending resource pool on a certain carrier is resource pool 1, resource pools 2, … …, resource pool n, and n total resource pools, the resource positions of PSCCH on the first carrier may be corresponding to n resource pools, for example, there are m PSCCH resources (m > =n), and then the correspondence between PSCCH resources and carrier positions may be set to mod (n, m) as the corresponding resource pool. When a certain second carrier control information SCI is transmitted and the second carrier uses a resource pool i, finding and transmitting PSCCH positions corresponding to mod (n, m) =i;
then, compared with the V2V sidelink control information defined by R14, the control information needs to be added with the resource pool indication information of k' bit to perform carrier direct indication and resource pool indirect indication.
From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present disclosure may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method described in the embodiments of the present disclosure.
Example two
The terminal described in this embodiment may be the terminal described in fig. 2, and may have a structure including a processor, a communication device, and a memory.
According to another embodiment of the present disclosure, there is also provided a terminal, which is a transmitting terminal, including: a first processor configured to determine to transmit data to be transmitted on a plurality of carriers on a side link; a first communication device, configured to transmit at least control information on a first carrier, and transmit only the data to be transmitted on a second carrier in a second carrier set; the first carrier and the second carrier are carriers in the plurality of carriers, and the control information is used for indicating the position of the data to be transmitted.
Optionally, the control information on the first carrier includes at least one of: indication information corresponding to the carrier wave in which the data to be transmitted are located; indication information corresponding to a resource pool of a carrier wave where the data to be transmitted is located.
According to another embodiment of the present disclosure, there is also provided a terminal, which is a receiving end, including: the second communication device is used for receiving data to be transmitted on a plurality of carriers on the sidelink through a multi-carrier data transmission technology; the second processor is configured to obtain the data to be transmitted, which is transmitted by the transmitting end on the plurality of carriers, according to control information on a first carrier, where the first carrier is a carrier in the plurality of carriers, and the control information is used to indicate a position where the data to be transmitted is located.
Optionally, the control information on the first carrier includes at least one of: indication information corresponding to the carrier wave in which the data to be transmitted are located; indication information corresponding to a resource pool of a carrier wave where the data to be transmitted is located.
Example III
Fig. 9 is a block diagram of a data transmission apparatus according to an embodiment of the present disclosure, as shown in fig. 9, including:
a determining module 92, configured to determine to send data to be transmitted on a plurality of carriers on the sidelink;
And a transmitting module 94, coupled to the determining module 92, configured to transmit at least control information on a first carrier and transmit only the data to be transmitted on a second carrier in a second carrier set, where the first carrier and the second carrier are carriers in the plurality of carriers, and the control information is used to indicate a location where the data to be transmitted is located.
Alternatively, the apparatus may be applied to a transmitting UE.
Optionally, the control information sent on the first carrier includes at least one of: indication information corresponding to the carrier wave in which the data to be transmitted are located; indication information corresponding to a resource pool of a carrier wave where the data to be transmitted is located.
Fig. 10 is a block diagram ii of a data transmission apparatus according to an embodiment of the present disclosure, as shown in fig. 10, the apparatus includes:
a receiving module 102, configured to receive data to be transmitted on a plurality of carriers on a sidelink;
the obtaining module 104 is connected to the receiving module 102, and is configured to obtain the data to be transmitted, which is transmitted by the transmitting end on the plurality of carriers, according to control information on a first carrier, where the first carrier is a carrier of the plurality of carriers, and the control information is used to indicate a position where the data to be transmitted is located.
Alternatively, the apparatus may be applied to a receiving UE.
Optionally, the control information on the first carrier includes at least one of: indication information corresponding to the carrier wave in which the data to be transmitted are located; indication information corresponding to a resource pool of a carrier wave where the data to be transmitted is located.
Example IV
According to another embodiment of the present disclosure, there is also provided a storage medium including a stored program, wherein the program, when run, performs the method described in the above alternative embodiment.
Example five
According to another embodiment of the present disclosure, there is also provided a processor, wherein the processor is configured to execute a program, and wherein the program, when executed, performs the method described in the above alternative embodiment.
It will be appreciated by those skilled in the art that the modules or steps of the disclosure described above may be implemented in a general purpose computing device, they may be centralized on a single computing device, or distributed across a network of computing devices, or they may alternatively be implemented in program code executable by computing devices, such that they may be stored in a memory device for execution by the computing devices and, in some cases, the steps shown or described may be performed in a different order than what is shown or described, or they may be implemented as individual integrated circuit modules, or as individual integrated circuit modules. As such, the present disclosure is not limited to any specific combination of hardware and software.
The foregoing description of the preferred embodiments of the present disclosure is provided only and not intended to limit the disclosure so that various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (23)
1. A data transmission method, comprising:
a transmitting end transmits data to be transmitted on a plurality of carriers on an edge link, wherein the transmitting end at least transmits control information on a first carrier and only transmits the data to be transmitted on a second carrier in a second carrier set, the first carrier and the second carrier are carriers in the plurality of carriers, and the control information is used for indicating the position of the data to be transmitted;
the control information carries resource identification information for indicating the data to be transmitted, wherein the data on a plurality of carriers in carrier aggregation sent by the sending end have the same resource identification information.
2. The method of claim 1, wherein the control information transmitted on the first carrier comprises at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
3. The method of claim 1, wherein the location of the first carrier in the plurality of carriers is determined by one of:
pre-configuring by a transmitting end;
determining according to signaling indication of a base station;
determining a carrier wave corresponding to a synchronization source selected by the transmitting end in the synchronization process as the first carrier wave;
determining a carrier wave used by a serving cell where the sending terminal resides as the first carrier wave;
selecting a sending resource pool from a preset or base station configured sending resource pool list and a carrier list corresponding to the sending resource pool list according to a resource pool selection strategy, and determining a carrier where the resource pool is located as the first carrier, wherein the resource pool selection strategy at least comprises one of the following steps: randomly selecting, calculating according to the identification information of the transmitting end, calculating according to the geographic position of the transmitting end, and selecting according to the type of the transmitting end.
4. The method of claim 1, wherein the control information transmitted on the first carrier comprises: one centralized scheduling information or a plurality of independent scheduling information.
5. The method of claim 4, wherein when the control information transmitted on the first carrier is a plurality of the independent scheduling information, the plurality of independent scheduling information is located on one transmission time interval or a plurality of transmission time intervals.
6. The method of claim 4, wherein when the control information sent on the first carrier is a centralized scheduling information, the control information is used to indicate data resource information of the data to be transmitted on all carriers used by the sending end.
7. The method of claim 4, wherein when the control information sent on the first carrier is a plurality of independent scheduling information, each of the control information is used to indicate data resource information of the data to be transmitted on a single carrier.
8. The method of claim 1, wherein the indication information corresponding to the carrier on which the data to be transmitted is located is a first number index of all available carriers on the side link by the transmitting end, and the first number index of each of the available carriers is determined by one of the following methods:
pre-configuring;
according to the signaling indication of the base station.
9. The method of claim 1, wherein the indication information corresponding to the resource pool of the carrier on which the data to be transmitted is located is a second number index of all transmission resource pools of the transmitting end on the carrier, and the second number index of each transmission resource pool is determined by one of the following methods:
Pre-configuring;
according to the signaling indication of the base station.
10. The method of claim 1, wherein the indication information corresponding to the carrier on which the data to be transmitted is located is a third number index of a transmission resource pool of the transmitting end on all carriers on an edge link, wherein the carrier location used by the transmitting end and the configuration information of the used transmission resource pool are determined according to the third number index, and the third number index of each transmission resource pool is determined by one of the following methods:
pre-configuring; according to the signaling indication of the base station.
11. The method according to claim 1, wherein the indication manner of the indication information included in the control information includes one of:
the direct indication mode is to add an indication domain in the control information for indication;
and indicating through the indirect indication mode according to the corresponding relation between the physical side link control channel resource position on the first carrier and the carrier and/or the resource pool which are correspondingly indicated.
12. The method of claim 11, wherein the direct indication is used for a carrier position corresponding to a carrier where the data to be transmitted is located, and the indirect indication is used for resource pool information of the carrier where the data to be transmitted is located;
Or the indirect indication is adopted for the carrier position corresponding to the carrier where the data to be transmitted is located, and the direct indication is adopted for the resource pool information of the carrier where the data to be transmitted is located.
13. A data transmission method, comprising:
the method comprises the steps that a receiving end receives data to be transmitted on a plurality of carriers on an edge link, wherein the receiving end obtains the data to be transmitted, which is transmitted on the plurality of carriers by a sending end, according to control information on a first carrier, wherein the first carrier is a carrier in the plurality of carriers, and the control information is used for indicating the position of the data to be transmitted;
the control information carries resource identification information for indicating the data to be transmitted, wherein the data on a plurality of carriers in carrier aggregation sent by the sending end have the same resource identification information.
14. The method of claim 13, wherein the control information on the first carrier comprises at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
15. A data transmission apparatus, comprising:
A determining module, configured to determine to transmit data to be transmitted on a plurality of carriers on an edge link;
a transmitting module, configured to transmit at least control information on a first carrier, and transmit only the data to be transmitted on a second carrier in a second carrier set, where the first carrier and the second carrier are carriers in the plurality of carriers, and the control information is used to indicate a location where the data to be transmitted is located;
an indication module: and the resource identification information is used for indicating the data to be transmitted, wherein the data on a plurality of carriers in carrier aggregation sent by the sending end have the same resource identification information.
16. The apparatus of claim 15, wherein the control information transmitted on the first carrier comprises at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
17. A data transmission apparatus, comprising:
a first receiving module for receiving data to be transmitted on a plurality of carriers on an edge link;
the first acquisition module is used for acquiring the data to be transmitted, which are transmitted by the transmitting end on the plurality of carriers, according to control information on a first carrier, wherein the first carrier is a carrier in the plurality of carriers, and the control information is used for indicating the position of the data to be transmitted;
And the second receiving module is used for receiving the resource identification information of the data to be transmitted, wherein the data on a plurality of carriers in the carrier aggregation sent by the sending end are received to have the same resource identification information.
18. The apparatus of claim 17, wherein the control information on the first carrier comprises at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
19. A terminal, comprising:
a first processor configured to determine to transmit data to be transmitted on a plurality of carriers on a side link;
a first communication device, configured to send at least control information on a first carrier, and send only the data to be transmitted on a second carrier in a second carrier set;
the first carrier and the second carrier are carriers in the plurality of carriers, and the control information is used for indicating a position of the data to be transmitted;
the first indicating device is used for indicating the resource identification information of the data to be transmitted;
wherein, the data on a plurality of carriers in the carrier aggregation sent by the sending end has the same resource identification information.
20. The terminal of claim 19, wherein the control information on the first carrier comprises at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
21. A terminal, comprising:
a second communication device for receiving data to be transmitted on a plurality of carriers on the side link;
the second processor is used for acquiring the data to be transmitted, which are transmitted by the transmitting end on the plurality of carriers, according to control information on a first carrier, wherein the first carrier is a carrier in the plurality of carriers, and the control information is used for indicating the position of the data to be transmitted;
the third communication device is used for receiving the resource identification information of the data to be transmitted;
and receiving the same resource identification information of the data on a plurality of carriers in the carrier aggregation sent by the sending end.
22. The terminal of claim 21, wherein the control information on the first carrier comprises at least one of: indication information corresponding to the carrier wave where the data to be transmitted are located; and indicating information corresponding to the resource pool of the carrier wave where the data to be transmitted are located.
23. A storage medium comprising a stored program, wherein the program when run performs the method of any one of the preceding claims 1 to 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710193005.4A CN108668371B (en) | 2017-03-28 | 2017-03-28 | Data transmission method and device and terminal |
| PCT/CN2018/078419 WO2018177109A1 (en) | 2017-03-28 | 2018-03-08 | Data transmission method and device, terminal, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710193005.4A CN108668371B (en) | 2017-03-28 | 2017-03-28 | Data transmission method and device and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108668371A CN108668371A (en) | 2018-10-16 |
| CN108668371B true CN108668371B (en) | 2023-07-18 |
Family
ID=63674250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710193005.4A Active CN108668371B (en) | 2017-03-28 | 2017-03-28 | Data transmission method and device and terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108668371B (en) |
| WO (1) | WO2018177109A1 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130733B (en) * | 2018-11-01 | 2022-01-14 | 华为技术有限公司 | Control information transmission method, device and equipment |
| CN111132296B (en) * | 2018-11-01 | 2021-06-22 | 华为技术有限公司 | Method and equipment for transmitting data and determining sending power |
| CN112636888B (en) | 2018-12-29 | 2022-05-31 | 展讯半导体(南京)有限公司 | Side link information transmission method, device, user terminal and storage medium |
| CN111436033B (en) * | 2019-01-11 | 2023-05-09 | 中国移动通信有限公司研究院 | Transmission operation method and terminal |
| CN111565089A (en) | 2019-02-13 | 2020-08-21 | 索尼公司 | Electronic device, wireless communication method, and computer-readable medium |
| CN112672309B (en) * | 2019-02-15 | 2022-01-11 | 华为技术有限公司 | Communication method and communication device |
| CN111757291B (en) | 2019-03-28 | 2023-07-18 | 华为技术有限公司 | Communication method and device |
| CN111865483B (en) * | 2019-04-30 | 2021-09-07 | 华为技术有限公司 | Method and equipment for sending and receiving CSI (channel State information) and configuring resources |
| CN111867116B (en) * | 2019-04-30 | 2022-07-12 | 华为技术有限公司 | Communication method and device |
| CN111800219B (en) * | 2019-07-29 | 2022-05-24 | 维沃移动通信有限公司 | Data transmission method, user equipment and control node |
| WO2021031020A1 (en) * | 2019-08-16 | 2021-02-25 | 富士通株式会社 | Sidelink synchronisation signal sending method, apparatus and system |
| CN111162874B (en) * | 2019-12-27 | 2022-11-04 | 展讯通信（上海）有限公司 | Data transmission method and device of ad hoc network system, storage medium and terminal |
| CN113133118B (en) * | 2020-01-15 | 2023-08-08 | 大唐移动通信设备有限公司 | Carrier wave determining method and device and readable storage medium |
| CN113225745B (en) * | 2020-01-21 | 2022-09-27 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
| CN113727440B (en) * | 2020-05-25 | 2024-07-23 | 华为技术有限公司 | Wireless communication method, medium and system |
| CN114363978B (en) * | 2020-10-12 | 2024-09-24 | 北京紫光展锐通信技术有限公司 | Carrier switching method, management node, terminal node and storage medium |
| WO2023060565A1 (en) * | 2021-10-15 | 2023-04-20 | Lenovo (Beijing) Limited | Methods and apparatuses for sidelink transmission |
| WO2024031463A1 (en) * | 2022-08-10 | 2024-02-15 | Oppo广东移动通信有限公司 | Sl communication method and apparatus, device, storage medium and program product |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898755A (en) * | 2014-05-14 | 2016-08-24 | 上海朗帛通信技术有限公司 | Interference coordination method and device in non-authorized frequency spectrum |
| CN105992373A (en) * | 2015-01-30 | 2016-10-05 | 中兴通讯股份有限公司 | Data transmission method, data transmission device, base station and user equipment |
| WO2016163816A1 (en) * | 2015-04-08 | 2016-10-13 | 엘지전자 주식회사 | Method and device for transmitting and receiving discovery signal in wireless communication system |
| WO2016181240A1 (en) * | 2015-05-13 | 2016-11-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Inter-carrier d2d resource allocation |
| CN106211025A (en) * | 2015-03-18 | 2016-12-07 | 北京三星通信技术研究有限公司 | The method and apparatus setting up relay connection in network based on D2D broadcast communication |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9143291B2 (en) * | 2012-12-27 | 2015-09-22 | Google Technology Holdings LLC | Method and apparatus for device-to-device communication |
| CN104284445B (en) * | 2013-07-09 | 2019-05-24 | 上海朗帛通信技术有限公司 | Multiple carrier dispatching method and device in a kind of D2D system |
| CN105813204B (en) * | 2014-12-31 | 2020-05-05 | 中兴通讯股份有限公司 | Resource pool configuration method and equipment |
-
2017
- 2017-03-28 CN CN201710193005.4A patent/CN108668371B/en active Active
-
2018
- 2018-03-08 WO PCT/CN2018/078419 patent/WO2018177109A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898755A (en) * | 2014-05-14 | 2016-08-24 | 上海朗帛通信技术有限公司 | Interference coordination method and device in non-authorized frequency spectrum |
| CN105992373A (en) * | 2015-01-30 | 2016-10-05 | 中兴通讯股份有限公司 | Data transmission method, data transmission device, base station and user equipment |
| CN106211025A (en) * | 2015-03-18 | 2016-12-07 | 北京三星通信技术研究有限公司 | The method and apparatus setting up relay connection in network based on D2D broadcast communication |
| WO2016163816A1 (en) * | 2015-04-08 | 2016-10-13 | 엘지전자 주식회사 | Method and device for transmitting and receiving discovery signal in wireless communication system |
| WO2016181240A1 (en) * | 2015-05-13 | 2016-11-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Inter-carrier d2d resource allocation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018177109A1 (en) | 2018-10-04 |
| CN108668371A (en) | 2018-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108668371B (en) | Data transmission method and device and terminal | |
| CN113994755B (en) | Method and apparatus for scheduling multiple resources in NR V2X | |
| US10813090B2 (en) | Resource configuration method and device | |
| CN110392431B (en) | Method, device and system for realizing side link resource configuration | |
| EP3714648B1 (en) | Methods and apparatuses for transmission scheduling on multiple frequencies | |
| CN107041002B (en) | Indication method and device for data channel subframes | |
| CN113475147B (en) | Method and device for performing LTE SL communication based on DCI | |
| CN109952805B (en) | Random access method, device and storage medium on unlicensed frequency band | |
| CN108811147B (en) | Information transmission method and device | |
| CN114762409A (en) | Method and apparatus for reselection of sidelink resources in NR V2X | |
| CN114930932A (en) | Method and apparatus for retransmitting sidelink in NR V2X | |
| CN113491168A (en) | Sidelink resource information transmission for NR V2X | |
| CN114788385A (en) | Method and apparatus for supporting simultaneous transmission of sidelink transmission and uplink transmission of terminal in NR V2X | |
| KR102510753B1 (en) | Method and device for transmitting S-SSB in NR V2X | |
| CN113475148B (en) | DCI for controlling LTE sidelink communication | |
| CN113396550B (en) | Method and apparatus for data link based sidelink communication in NR V2X | |
| CN117203927A (en) | Method and apparatus for setting SL HARQ RTT timer in NR V2X | |
| JP7370448B2 (en) | Method and apparatus for transmitting information related to SL slots in NR V2X | |
| CN114788370A (en) | Method and apparatus for performing sensing for sidelink communications in NR V2X | |
| WO2023014652A1 (en) | Dynamically enabled vehicle-to-everything (v2x) pedestrian mode for mobile devices | |
| CN117837250A (en) | Method and apparatus for performing communication based on interference information in NR V2X | |
| CN117461358A (en) | Method and apparatus for determining SL DRX configuration in NR V2X | |
| CN116941276A (en) | Method and apparatus for obtaining CBR values based on partial sensing in NR V2X | |
| CN116830701A (en) | Method and apparatus for operating SL DRX according to terminal type in NR V2X | |
| CN115516951A (en) | Method and device for selecting transmission resources in NR V2X |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |