CN110139239B - Method and terminal for service transmission - Google Patents
Method and terminal for service transmission Download PDFInfo
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- CN110139239B CN110139239B CN201810135274.XA CN201810135274A CN110139239B CN 110139239 B CN110139239 B CN 110139239B CN 201810135274 A CN201810135274 A CN 201810135274A CN 110139239 B CN110139239 B CN 110139239B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
Abstract
The invention relates to the technical field of wireless communication, in particular to a method and a terminal for service transmission, which are used for solving the problem that the condition that system interference or correct receiving cannot be caused by adopting a fixed transmission frequency in a V2X scene in the prior art is possibly caused. The terminal transmits TB through the resources in the sub-resource selection window, the scheduling mode corresponding to the transmission of the TB for the periodic service is an SPS scheduling mode, the scheduling mode corresponding to the repeated transmission of the TB is a DS scheduling mode, and for the aperiodic service, the scheduling modes corresponding to the initial transmission and the repeated transmission of the TB are DS scheduling modes. Due to the adoption of the DS scheduling mode, retransmission is carried out after transmission failure, so that fixed retransmission times are not needed, and the system capacity is improved.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and a terminal for service transmission.
Background
Currently, two main communication modes exist in the field of wireless communication:
a communication mode via a network and a direct communication mode.
1. Communication mode via network
The conventional way of communicating via a network is shown in fig. 1A, where a Uu interface is used between a base station and a terminal (UE):
for the communication mode via the network, if the transmission terminal needs to transmit data, the data is firstly transmitted to the base station through the Uu interface between the terminal and the service base station of the transmission terminal, then the base station sends the data from the receiving terminal to the external server through the core network equipment, the external server judges whether the data needs to be transmitted to other terminals, if so, the data is forwarded to the service base station of the receiving terminal, and then the service base station of the receiving terminal transmits the data to the receiving terminal through the Uu interface.
2. Direct communication mode
The manner of direct communication is shown in fig. 1B:
the terminals adopt a D2D (Device to Device) technology to realize direct communication.
V2X (vehicle-to-Everything) communication is a popular issue in the field of communication. V2X communication mainly contains three aspects:
V2V (Vechile-to-Vechile, car-to-car): communication between OBUs (On Board Unit) On the vehicle.
V2I (vehicle-to-Infrastructure, lane network): communication between the vehicle and an RSU (Road Side Unit).
V2P (vehicle-to-Pedestrian): communication between the vehicle and the pedestrian.
For V2X, if the communication manner via the network shown in the above (1) is used, it can be referred to as V2X communication via the network (simply referred to as Uu V2X); if V and X use the direct communication method described in (2) above, it can be called V2X direct communication (abbreviated as PC5V 2X).
In the existing LTE V2X technology (Rel-14LTE V2X technology), the PC5 interface for transmitting data between UEs can already support the transmission of basic traffic based on road security, wherein the main aim is to use a packet size of 50-1200bytes, and the required packet transmission has a reliability of more than 95% within the specified coverage. The basic Scheduling mechanism is that the sending (sensing) -based SPS (Semi-Persistent Scheduling) + probability P, TB (Transport Block) transmission times are determined.
With the further development of the car networking technology, some new application scenarios appear, such as: vehicle formation, advanced driving, sensor information sharing, and remote control. Some of these applications require communication between UEs within a group, or unicast communication between two UEs.
However, if the number of transmission times is too large, redundant transmission causes system interference, and if the number of transmission times is not enough, correct reception cannot be performed.
In summary, the fixed number of transmissions used in the current V2X scenario may cause system interference or incorrect reception.
Disclosure of Invention
The invention provides a method and a terminal for service transmission, which are used for solving the problem that the adoption of a fixed transmission frequency in a V2X scene in the prior art can cause system interference or incorrect receiving.
In a first aspect, a method for service transmission provided in an embodiment of the present invention includes:
the terminal of V2X determines the sub-resource selection window in the resource selection window used by the TB transmission;
the terminal selects resources from the determined sub-resource selection window;
the terminal transmits the TB through the selected resource;
wherein the transmission is an initial transmission or a repeated transmission;
if the service corresponding to the TB is a periodic service, the scheduling mode for initially transmitting the TB is an SPS scheduling mode, and the scheduling mode for repeatedly transmitting the TB is a DS scheduling mode; and/or if the service corresponding to the TB is aperiodic service, the scheduling mode of the initial transmission and the repeated transmission of the TB is a DS scheduling mode.
In a second aspect, an embodiment of the present invention provides a terminal for service transmission, where the terminal is a terminal of V2X, and the terminal includes: a processor and a memory;
the processor is used for reading the program in the memory and executing the following processes:
determining a sub-resource selection window in a resource selection window used by the TB for the current transmission; selecting resources from the determined sub-resource selection window; transmitting the TB over the selected resource;
wherein the transmission is an initial transmission or a repeated transmission;
if the service corresponding to the TB is a periodic service, the scheduling mode for initially transmitting the TB is an SPS scheduling mode, and the scheduling mode for repeatedly transmitting the TB is a DS scheduling mode; and/or if the service corresponding to the TB is aperiodic service, the scheduling mode of the initial transmission and the repeated transmission of the TB is a DS scheduling mode.
In a third aspect, an embodiment of the present invention provides a computer storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method in the first aspect
The terminal transmits TB through the resources in the sub-resource selection window, the scheduling mode corresponding to the transmission of the TB for the periodic service is an SPS scheduling mode, the scheduling mode corresponding to the repeated transmission of the TB is a DS scheduling mode, and for the aperiodic service, the scheduling modes corresponding to the initial transmission and the repeated transmission of the TB are DS scheduling modes. Due to the adoption of the DS scheduling mode, retransmission is carried out after transmission failure, so that fixed retransmission times are not needed, the occurrence times of system interference or incorrect receiving are reduced, and the system capacity is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1A is a diagram illustrating communication over a network according to the background art;
FIG. 1B is a diagram illustrating a direct communication between terminals in the background art;
fig. 2 is a schematic flow chart of a method for performing service transmission according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating a first sub-resource selection window according to an embodiment of the present invention;
FIG. 4A is a diagram illustrating a second sub-resource selection window being divided for a first time according to an embodiment of the present invention;
FIG. 4B is a diagram illustrating a second sub-resource selection window according to a second embodiment of the present invention;
fig. 4C is a schematic diagram illustrating third partitioning of a second seed resource selection window according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first terminal according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second terminal according to an embodiment of the present invention.
Detailed Description
(1) In the embodiments of the present application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand the meaning.
(2) In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.
(3) "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Some of the words that appear in the text are explained below:
the terminal of the embodiment V2X of the present invention is any terminal capable of supporting the V2X technology.
The transmission of the TB according to the embodiments of the present invention refers to transmission of data that needs to be transmitted on the TB through a resource that is the TB.
The service corresponding to the TB in the embodiment of the present invention refers to a service transmitted through the TB.
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminals presented in the following are terminals supporting the V2X technology.
As shown in fig. 2, the method for service transmission according to the embodiment of the present invention includes:
wherein the transmission is an initial transmission or a repeated transmission;
if the service corresponding to the TB is a periodic service, the scheduling mode for initially transmitting the TB is an SPS (semi-persistent scheduling) scheduling mode, and the scheduling mode for repeatedly transmitting the TB is a DS (dynamic scheduling) scheduling mode; and/or
And if the service corresponding to the TB is aperiodic service, the scheduling mode of the initial transmission and the repeated transmission of the TB is a DS scheduling mode.
The terminal transmits TB through the resources in the sub-resource selection window, the scheduling mode corresponding to the transmission of the TB for the periodic service is an SPS scheduling mode, the scheduling mode corresponding to the repeated transmission of the TB is a DS scheduling mode, and for the aperiodic service, the scheduling modes corresponding to the initial transmission and the repeated transmission of the TB are DS scheduling modes. Due to the adoption of the DS scheduling mode, retransmission is carried out after transmission failure, so that fixed retransmission times are not needed, the occurrence times of system interference or incorrect receiving are reduced, and the system capacity is improved.
In the embodiment of the present invention, when the service corresponding to the TB is a periodic service, the scheduling mode for initially transmitting the TB is an SPS scheduling mode, and here, a period reserved by the SPS scheduling mode is the same as a period reserved in the existing SPS scheduling, which is not described herein again.
When the service corresponding to the TB is a periodic service, the scheduling mode for repeatedly transmitting the TB is a DS scheduling mode. After each transmission of the TB, whether the next transmission is needed or not is not known, and the next transmission is only known until the target time, so that the DS scheduling mode is adopted subsequently, and the reservation period can be considered to be 0 ms.
In the embodiment of the invention, when the service corresponding to the TB is the aperiodic service, the scheduling mode of the initial transmission and the repeated transmission of the TB is a DS scheduling mode. Similarly, after each TB is transmitted, it is not known whether the next TB is transmitted or not, and the next TB is only transmitted until the target time, so the DS scheduling mode follows, and the reservation period can be considered to be 0 ms.
Optionally, the terminal in the embodiment of the present invention may determine whether the service corresponding to the TB is a periodic service by one of the following manners:
in the mode 1, the terminal determines, according to the correspondence between the service type and the period information, the period information corresponding to the service type of the service corresponding to the TB, where the period information is used to indicate whether the service is a periodic service.
The method is to pre-configure the corresponding relationship between the service type (service type) and the period information, such as the period corresponding to the service type 1; the service type 2 corresponds to a non-periodic time; assuming that the service type of the service corresponding to the TB is service type 1, the period information corresponding to the service type of the service corresponding to the TB is information representing a period, for example, 1 represents a period, and 0 represents an aperiodic period, and the period information is 1.
And in the mode 2, the terminal determines the period information corresponding to the service priority of the service corresponding to the TB according to the corresponding relation between the service priority and the period information, wherein the period information is used for indicating whether the service is a periodic service.
The method is to pre-configure the corresponding relationship between the service priority (PPPP) and the period information, such as the period corresponding to the service priority 1; the service priority 2 corresponds to a non-period; assuming that the service priority of the service corresponding to the TB is service priority 2, the period information corresponding to the service type of the service corresponding to the TB is information indicating an aperiodic period, for example, 1 indicates a period, and 0 indicates an aperiodic period, and the period information is 0.
And in the mode 3, the terminal acquires the period information of the service corresponding to the TB through a high layer, wherein the period information is used for indicating whether the service is a periodic service.
In this way, the high layer of the service corresponding to the terminal generated TB can carry the period information of the service while generating the service, and the terminal can acquire the period information through the interlayer interaction in the terminal.
Optionally, the transmission is an initial transmission, and the starting point of the sub-resource selection window is the starting point of the resource selection window.
Optionally, if the transmission is a repeated transmission, the terminal determines that NACK (Negative acknowledgement, error response instruction) feedback is received at the target time or ACK (Acknowledged Message, response Message) feedback is not received at the target time, and then determines a sub-resource selection window in a resource selection window used by the TB for the transmission according to the target time.
Wherein the target time is a feedback time corresponding to the latest TB transmission.
That is, if the terminal determines that NACK feedback is received at the target time or ACK feedback is not received at the target time, it determines that the last TB transmission fails.
Optionally, in order to avoid continuous repeated transmission, the embodiment of the present invention may set a maximum transmission frequency, and after determining that the last TB transmission fails at the target time, if the frequency of transmitting the TB does not reach the maximum transmission frequency, the terminal determines, according to the target time, a sub-resource selection window in the resource selection window used by the TB in this transmission.
And if the number of times of transmitting the TB reaches the maximum transmission number, stopping repeatedly transmitting the TB.
That is, the selection of retransmission resources triggers the mechanism: after the TB is transmitted, the selection of retransmission resources is triggered when NACK is received or ACK feedback is not received on a feedback channel corresponding to the TB and the maximum transmission times are not exceeded.
Optionally, the terminal in the embodiment of the present invention may determine the maximum transmission times according to part or all of the following information:
relative vehicle speed, synchronization accuracy, congestion condition, Service priority, QoS (Quality of Service), whether TB is segmented packet data, and Service type.
The QoS means that: QoS of a service currently transmitted by the terminal.
Whether TB is segmented packet data means: whether the service currently transmitted by the terminal needs to be transmitted in a segmented mode or not.
The service type is as follows: the service type of the service currently transmitted by the terminal.
For example, the maximum transmission times of the segmented service is set to be 4 times, and the maximum transmission times of the non-segmented service is set to be 2 times.
For example, if the QoS classes are 8, the maximum number of transmissions of 1-4 high priority classes is 4, and the maximum number of transmissions of 5-8 low priority classes is 3.
For example, the maximum transmission times of the V2X secure traffic is 4, and the maximum transmission times of the V2X non-secure traffic is 3.
It should be noted that the above examples are only examples, and any manner capable of determining the maximum transmission number according to the above information is applicable to the embodiments of the present invention.
One possible implementation is: the embodiment of the invention can set different maximum transmission times for different service priorities, if the service priorities are the same, different V2X services have both safe services and non-safe services, so that the invention can also increase QoS, consider whether TB is segmented service packet data, the type of service (unicast, multicast or broadcast) and the like from the perspective of safety level, unicast or broadcast and the like, thereby realizing the same service priority and also setting different maximum transmission times.
In practice, the maximum number of transmissions of the embodiments of the present invention may be any positive integer.
Optionally, if the transmission is a repeated transmission, and the terminal determines a sub-resource selection window in the resource selection window used in the transmission according to the target time, the embodiment of the present invention provides a plurality of schemes for selecting the sub-resource selection window, which are listed as follows:
mode 1, uniform method, the maximum number of transmissions of the method may be 2 times minimum.
Specifically, the terminal determines the end points of a plurality of sub-resource selection windows from the resource selection windows according to the maximum transmission times;
and the terminal determines the end point of the sub-resource selection window used in the current transmission from the end points of the sub-resource selection windows according to the transmission times of the TB, and takes the target time + M as the starting point of the sub-resource selection window used in the current transmission, wherein M is the number of the TTI transmission time slots.
As for the mode 1, the resource selection window can be divided equally according to the maximum transmission times to obtain the end points of a plurality of sub-resource selection windows;
and then, determining the end point of each resource selection window according to the current transmission times, and simultaneously determining the starting point of the next resource selection window when negative feedback is received in each transmission to determine the selected resource.
For example, for the initial transmission, the resource selection window is [ T1, T1+ (T2-T1)/M ], and if negative feedback is received or no positive feedback is received at time T1, the resource selection window for the first retransmission is [ T1+1, T1+ (T2-T1) × 2/M ]. M is the maximum number of transmissions, and T1 and T2 are time instants.
Taking fig. 3 as an example, assuming that the maximum transmission time is 4, M is 1, and a resource selection window is between a and E in fig. 3, the resource selection window is divided into 4 parts equally according to the maximum transmission time, that is, B, C and D points divide the resource selection window into 4 parts.
The first transmitted sub-resource selection window is in A and B;
the sub-resource selection windows for the 2 nd transmission are in B and C;
the sub-resource selection window for the 3 rd transmission is in C and D;
the sub-resource selection windows for the 4 th transmission are in D and E.
Wherein, the starting position of the transmitted sub-resource selection window is point A, the end position is the set position, and the positions A and B are in the same;
if retransmission is needed after the first transmission, the end point of the sub-resource selection window of the 2 nd transmission is point C, and the start point is t1+1, where t1 is the feedback time corresponding to the first transmission.
If retransmission is needed after the 2 nd transmission, the end point of the 3 rd transmission sub-resource selection window is point D, and the start point is t2+1, where t2 is the feedback time corresponding to the 2 nd transmission.
If retransmission is needed after the 3 rd transmission, the end point of the 4 th transmission sub-resource selection window is point D, and the start point is t3+1, where t3 is the feedback time corresponding to the 3 rd transmission.
Mode 2. the non-uniform method,
specifically, the terminal divides a partial window in the resource selection window into N windows, where N is an integer greater than 1, a starting point of the partial window is the target time, and an end point of the partial window is an end point of the resource selection window;
and the terminal takes the end point of the foremost window in the N windows as the end point of the sub-resource selection window used for the current transmission, and takes the target time + M as the starting point of the sub-resource selection window used for the current transmission, wherein M is the number of TTI transmission time slots.
Optionally, M is 1.
In implementation, from the system perspective, it is highly probable that the reception is successful with a small number of transmissions, and different resource selection window sets may be determined for the initial transmission and each retransmission.
For example, a bisection method (that is, N is 2) is adopted, the window corresponding to the initial transmission resource is [ T1, T1+ (T2-T1)/2], and if the initial transmission is unsuccessful, negative feedback is received or positive feedback is not received at time T1, and the corresponding window [ T1+1, T1+ (T2-T1)/2] is retransmitted next time.
Optionally, the terminal determines the size of N according to the system configuration or a condition of receiving feedback within a period of time.
That is, the transmission is determined according to the average transmission times in a period of time, for example, if the UE transmits 2 times in a period of time and the transmission is successful, the dichotomy is adopted, and if the UE transmits 3 times in a period of time and the transmission is successful, the 3-dichotomy is adopted.
Taking fig. 4A as an example, in fig. 4A, a resource selection window is between a and C, and assuming that N is 2 and M is 1, the resource selection window between a and C is divided into 2 windows, i.e., a to B1 are one window and B1 to C are one window;
then, the terminal takes the point a of this window a to B1 as the start point of the first transmitted sub-resource selection window, and the end positions are the set positions, among positions a and B1.
If retransmission is needed after the first transmission, the division needs to be continued from the feedback moment of the first transmission;
as shown in fig. 4B, assuming that B2 is the feedback time of the first transmission, B2 to C are divided into 2 two windows, i.e., B2 to B3 are one window, and B3 to C are one window;
then, the terminal takes the B3 point of the window of B2 to B3 as the end point of the sub resource selection window of transmission 2, and the start point of the sub resource selection window of transmission 2 is B2+ 1.
If retransmission is needed after the 2 nd transmission, the division needs to be continued from the feedback time of the 2 nd transmission;
as shown in fig. 4C, assuming that B4 is the feedback time of the 2 nd transmission, B4 to C are divided into 2 two windows, i.e., B4 to B5 are one window, and B5 to C are one window;
then, the terminal takes the B5 point of the window of B4 to B5 as the end point of the sub resource selection window of the 3 rd transmission, and the start point of the sub resource selection window of the 3 rd transmission is B4+ 1.
And the like is carried out subsequently until the transmission is successful or the transmission times reach the maximum transmission times.
Optionally, since transmission is not continued after the last transmission (i.e., the transmission times reach the maximum transmission times), the window may not be divided during the last transmission.
That is, if the transmission frequency after the current transmission does not reach the maximum transmission frequency, the terminal divides a part of windows in the resource selection window into N windows.
And if the transmission times after the transmission reaches the maximum transmission times, the terminal takes part of the windows in the resource selection window as the sub-resource selection window used by the transmission.
For example, if the maximum transmission time is 5 times and the current transmission time is 4 th time, dividing part of the windows in the resource selection window into N windows;
if the transmission is the 5 th transmission, the window is not divided, and part of the windows in the resource selection window are directly used as the sub-resource selection window used by the transmission. For example, in fig. 4C, if the 4 th transmission fails, the point +1 of the feedback time of the 4 th transmission in the parts B5 to C is used as the starting point of the sub-resource selection window used in the current transmission, and C is used as the end point of the sub-resource selection window used in the current transmission, without continuing the division.
After determining a sub-resource selection window in a resource selection window used by the TB for this transmission, resource selection can be performed from the sub-resource selection window.
In practice, one resource may be selected at a time, or a plurality of resources may be selected.
Since the co-channel interference and/or in-band interference is relatively small, the embodiment of the present invention may select through a sending (sensing) mode, a backoff process, an RTS/CTS (Request To Send/Clear To Send) process, and the like.
When selecting a resource, the selection may be performed with reference to some or all of the following selection conditions:
conditions 1,
And the resource selected by the terminal from the determined sub-resource selection window is a resource for performing time division multiplexing on a target terminal, wherein the target terminal is a terminal performing unicast with the terminal and/or a terminal performing the same multicast with the terminal.
The need for unicast and/or multicast circumvents frequency division multiplexing. Whether initial transmission or any retransmission, needs to avoid frequency division with the resources of unicast and/or multicast traffic packets that need to be received. I.e. it is necessary to ensure that each transmission is time-divisible.
Here, mainly from the viewpoint of reliability, for reliable reception, channel variation needs to be considered, co-channel interference needs to be considered, and half-duplex influence needs to be considered. For unicast and multicast terminals, the non-receiving object is an external object, while for the internal, it is necessary to sufficiently improve reliability. Not considering frequency division in some scenarios may improve the probability of mutual listening, for example, between unicast and multicast members, for example, services with the same resource reservation period.
Conditions 2,
And the resources selected by the terminal from the determined sub-resource selection window are resources except for the resources used by the terminal in a feedback mode.
Here, the resource selection may take into account a feedback process, including the reception of feedback information and the transmission of a feedback indication. That is, the resource selection needs to be combined with the Tx chain (transmission capability) set feedback procedure of the terminal to determine whether the resource selection can be performed in a certain TTI.
In an implementation, the terminal may further add indication type information indicating a transport block to which the selected resource belongs to scheduling assignment information corresponding to the current TB transmission.
Therefore, the receiving end can determine the transmission block to which the received data belongs, and the data on the same transmission block resource is received and combined.
The information used for indicating the transport block to which the selected resource belongs is a transport block sequence number and/or resource indication information for initially transmitting the TB.
The sequence number of the transmission block can be SN, that is, each TB is allocated with one SN, and the data of the same TB carries the same SN, so that the receiving end can determine which transmission block belongs to according to the SN.
The resource indication information for initially transmitting the TB is information indicating resources used for initial transmission. If the initial transmission fails, the SA corresponding to the 2 nd transmission carries the resource indication information for initially transmitting the TB, if the 2 nd transmission fails, the SA corresponding to the 3 rd transmission carries the resource indication information for initially transmitting the TB, and so on.
Thus, after receiving the SA containing the same resource indication information for initially transmitting the TB, the receiving end can know that the resource carrying the data corresponding to the SA belongs to the same TB.
Optionally, since the receiving end needs to perform puncturing according to the RV, if the initial retransmission uses the same RV version, for example, all uses RV0 or all retransmissions use the same RV version while the initial transmission uses another RV version, the current transmission frequency does not need to be indicated.
And if the initial retransmission adopts different RV versions, namely if the redundancy versions of the same TB are transmitted at each time are different, the terminal adds the current transmission times in the scheduling distribution information, wherein the current transmission corresponds to the transmission times of the current TB.
For example, X is 1, and if the number of times that the TB has been transmitted is 2, the number of times that the current TB is transmitted is 3.
The receiving end can prestore the corresponding relation of transmission times and RV versions, for example, the first transmission corresponds to RV version 0, the 2 nd transmission corresponds to RV version 2, and the 3 rd transmission corresponds to RV version 1.
Therefore, the receiving end can know which RV version is adopted according to the corresponding relation between the transmission times and the RV versions and the times in the scheduling distribution information.
For example, transmission 2, RV version 2 is used.
As shown in fig. 5, a first terminal according to an embodiment of the present invention includes: a processor 500, a memory 501, and a transceiver 502.
The processor 500 is responsible for managing the bus architecture and general processing, and the memory 501 may store data used by the processor 500 in performing operations. The transceiver 502 is used to receive and transmit data under the control of the processor 500.
The bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 500 and various circuits of memory represented by memory 501 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 501 may store data used by the processor 500 in performing operations.
The processes disclosed in the embodiments of the present invention may be applied to the processor 500, or implemented by the processor 500. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 500. The processor 500 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 501, and the processor 500 reads the information in the memory 501, and completes the steps of the signal processing flow in combination with the hardware thereof.
The processor 500 is configured to read a program in the memory 501 and execute the following processes:
determining a sub-resource selection window in a resource selection window used by the TB for the current transmission; selecting resources from the determined sub-resource selection window; transmitting the TB over the selected resource;
wherein the transmission is an initial transmission or a repeated transmission;
if the service corresponding to the TB is a periodic service, the scheduling mode for initially transmitting the TB is an SPS scheduling mode, and the scheduling mode for repeatedly transmitting the TB is a DS scheduling mode; and/or if the service corresponding to the TB is aperiodic service, the scheduling mode of the initial transmission and the repeated transmission of the TB is a DS scheduling mode.
Optionally, the processor 500 determines whether the service corresponding to the TB is a periodic service by one of the following manners:
mode 1, according to the corresponding relation between the service type and the cycle information, determining the cycle information corresponding to the service type of the service corresponding to the TB;
mode 2, according to the corresponding relationship between the service priority and the cycle information, determining the cycle information corresponding to the service priority of the service corresponding to the TB;
mode 3, obtaining the periodic information of the service corresponding to the TB through a high layer;
wherein the period information is used for indicating whether the service is a periodic service.
Optionally, the transmission is an initial transmission, and the starting point of the sub-resource selection window is the starting point of the resource selection window.
Optionally, if the transmission is a repeated transmission, the processor 500 is further configured to:
determining a sub-resource selection window in a resource selection window used by the TB for the current transmission after determining that NACK feedback is received at the target moment or ACK feedback is not received at the target moment;
wherein the target time is a feedback time corresponding to the latest TB transmission.
Optionally, the processor 500 is further configured to:
and after the number of times of transmitting the TB is determined to be less than the maximum transmission number of times, determining a sub-resource selection window in the resource selection window used by the TB for the current transmission according to the target moment.
Optionally, the processor 500 determines the maximum transmission number according to part or all of the following information:
relative vehicle speed, synchronization accuracy, congestion condition, service priority, QoS, whether TB is segmented service packet data or not, and service type.
Optionally, the transmission is a repeated transmission, and the processor 500 is specifically configured to:
determining the end points of a plurality of sub-resource selection windows from the resource selection windows according to the maximum transmission times;
and determining the end point of the sub-resource selection window used in the current transmission from the end points of the plurality of sub-resource selection windows according to the number of times of transmitting the TB, and taking the target time + M as the starting point of the sub-resource selection window used in the current transmission, wherein M is the number of TTI transmission time slots.
Optionally, the transmission is a repeated transmission, and the processor 500 is specifically configured to:
dividing a partial window in the resource selection window into N windows, wherein N is an integer greater than 1, the starting point of the partial window is the target time, and the end point of the partial window is the end point of the resource selection window;
and taking the end point of the foremost window in the N windows as the end point of the sub-resource selection window used for the current transmission, and taking the target time + M as the starting point of the sub-resource selection window used for the current transmission, wherein M is the number of TTI transmission time slots.
Optionally, the processor 500 is further configured to:
the size of N is determined according to the system configuration or the situation of receiving feedback within a period of time.
Optionally, the processor 500 is further configured to:
and after the transmission times do not reach the maximum transmission times after the current transmission is determined, dividing part of windows in the resource selection window into N windows.
Optionally, the processor 500 is further configured to:
and if the transmission times reach the maximum transmission times after the transmission, taking part of the windows in the resource selection window as the sub-resource selection window used by the transmission.
Optionally, the processor 500 is specifically configured to:
selecting resources from the determined sub-resource selection window as resources for performing time division multiplexing on a target terminal, wherein the target terminal is a terminal performing unicast with the terminal and/or a terminal performing the same multicast with the terminal; and/or
And selecting resources from the determined sub-resource selection window as resources except for the resources used by the terminal in feedback.
Optionally, the processor 500 is further configured to:
and adding indication type information for indicating the transport block to which the selected resource belongs to the scheduling assignment information corresponding to the current transmission of the TB.
Optionally, the information indicating the transport block to which the selected resource belongs is a transport block sequence number and/or resource indication information for initially transmitting the TB.
Optionally, the processor 500 is further configured to:
and if the redundancy versions of the same TB are transmitted at each time are different, adding the current transmission times into the scheduling distribution information, wherein the current transmission corresponds to the transmission times of the current TB.
As shown in fig. 6, a second terminal according to the embodiment of the present invention includes:
a window selection module 600, configured to determine a sub-resource selection window in the resource selection window used by the TB for this transmission;
a resource selection module 601, configured to select a resource from the determined sub-resource selection window;
a transmission module 602, configured to transmit the TB via the selected resource;
wherein the transmission is an initial transmission or a repeated transmission;
if the service corresponding to the TB is a periodic service, the scheduling mode for initially transmitting the TB is an SPS scheduling mode, and the scheduling mode for repeatedly transmitting the TB is a DS scheduling mode; and/or if the service corresponding to the TB is aperiodic service, the scheduling mode of the initial transmission and the repeated transmission of the TB is a DS scheduling mode.
Optionally, the transmission is an initial transmission, and the starting point of the sub-resource selection window is the starting point of the resource selection window.
Optionally, the window selection module 600 determines whether the service corresponding to the TB is a periodic service by one of the following manners:
mode 1, according to the corresponding relation between the service type and the cycle information, determining the cycle information corresponding to the service type of the service corresponding to the TB;
mode 2, according to the corresponding relationship between the service priority and the cycle information, determining the cycle information corresponding to the service priority of the service corresponding to the TB;
mode 3, obtaining the periodic information of the service corresponding to the TB through a high layer;
wherein the period information is used for indicating whether the service is a periodic service.
Optionally, if the transmission is a repeated transmission, the window selection module 600 is further configured to:
and after the NACK feedback is received at the target moment or the ACK feedback is not received at the target moment, determining a sub-resource selection window in the resource selection window used by the TB for the current transmission according to the target moment.
Optionally, the window selecting module 600 is further configured to:
determining a sub-resource selection window in a resource selection window used by the TB for the current transmission after determining that NACK feedback is received at the target moment or ACK feedback is not received at the target moment;
wherein the target time is a feedback time corresponding to the latest TB transmission.
Optionally, the processor 500 determines the maximum transmission number according to part or all of the following information:
relative vehicle speed, synchronization accuracy, congestion condition, service priority, QoS, whether TB is segmented service packet data or not, and service type.
Optionally, the transmission is a repeated transmission, and the window selection module 600 is specifically configured to:
determining the end points of a plurality of sub-resource selection windows from the resource selection windows according to the maximum transmission times;
and determining the end point of the sub-resource selection window used in the current transmission from the end points of the plurality of sub-resource selection windows according to the number of times of transmitting the TB, and taking the target time + M as the starting point of the sub-resource selection window used in the current transmission, wherein M is the number of TTI transmission time slots.
Optionally, the transmission is a repeated transmission, and the window selection module 600 is specifically configured to:
dividing a partial window in the resource selection window into N windows, wherein N is an integer greater than 1, the starting point of the partial window is the target time, and the end point of the partial window is the end point of the resource selection window;
and taking the end point of the foremost window in the N windows as the end point of the sub-resource selection window used for the current transmission, and taking the target time + M as the starting point of the sub-resource selection window used for the current transmission, wherein M is the number of TTI transmission time slots.
Optionally, the window selecting module 600 is further configured to:
the size of N is determined according to the system configuration or the situation of receiving feedback within a period of time.
Optionally, the window selecting module 600 is further configured to:
and after the transmission times do not reach the maximum transmission times after the current transmission is determined, dividing part of windows in the resource selection window into N windows.
Optionally, the window selecting module 600 is further configured to:
and if the transmission times reach the maximum transmission times after the transmission, taking part of the windows in the resource selection window as the sub-resource selection window used by the transmission.
Optionally, the resource selection module 601 is specifically configured to:
selecting resources from the determined sub-resource selection window as resources for performing time division multiplexing on a target terminal, wherein the target terminal is a terminal performing unicast with the terminal and/or a terminal performing the same multicast with the terminal; and/or
And selecting resources from the determined sub-resource selection window as resources except for the resources used by the terminal in feedback.
Optionally, the transmission module 602 is further configured to:
and adding indication type information for indicating the transport block to which the selected resource belongs to the scheduling assignment information corresponding to the current transmission of the TB.
Optionally, the information indicating the transport block to which the selected resource belongs is a transport block sequence number and/or resource indication information for initially transmitting the TB.
Optionally, the transmission module 602 is further configured to:
and if the redundancy versions of the same TB are transmitted at each time are different, adding the current transmission times into the scheduling distribution information, wherein the current transmission corresponds to the transmission times of the current TB.
An embodiment of the present invention provides a readable storage medium, which is a non-volatile storage medium, and the readable storage medium is a non-volatile readable storage medium and includes a program code, and when the program code runs on a computing device, the program code is configured to enable the computing device to execute an action of performing service transmission by the terminal.
Embodiments of the present invention provide a computer program product including instructions, which when run on a computer, enable the computer to execute the operation of the terminal for service transmission.
The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will be understood that one block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, 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, and/or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer and/or other programmable data processing apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.
Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (27)
1. A method for traffic transmission, the method comprising:
the terminal of the vehicle-to-everything V2X determines a sub-resource selection window in the resource selection window used by the transmission block TB for the current transmission;
the terminal selects resources from the determined sub-resource selection window;
the terminal transmits the TB through the selected resource;
wherein the transmission is an initial transmission or a repeated transmission;
if the service corresponding to the TB is a periodic service, the scheduling mode for initially transmitting the TB is a semi-persistent scheduling (SPS) scheduling mode, and the scheduling mode for repeatedly transmitting the TB is a dynamic DS scheduling mode; and/or if the service corresponding to the TB is aperiodic service, the scheduling mode of the initial transmission and the repeated transmission of the TB is a DS scheduling mode;
the current transmission is repeated transmission, and the terminal determines that the current transmission of the TB is performed before a sub-resource selection window in a resource selection window, and the method further comprises the following steps:
the terminal determines that an error response command NACK feedback is received at a target moment or a response message ACK feedback is not received at the target moment;
wherein the target time is a feedback time corresponding to the latest TB transmission;
the transmission is repeated transmission, and the terminal determines a sub-resource selection window in the resource selection window used by the transmission, and the method comprises the following steps:
the terminal divides a partial window in the resource selection window into N windows, wherein N is an integer greater than 1, the starting point of the partial window is the target time, and the end point of the partial window is the end point of the resource selection window;
and the terminal takes the end point of the foremost window in the N windows as the end point of the sub-resource selection window used for the current transmission, and takes the target time + M as the starting point of the sub-resource selection window used for the current transmission, wherein M is the number of TTI transmission time slots.
2. The method of claim 1, wherein the terminal determines whether the service corresponding to the TB is a periodic service by one of:
mode 1, the terminal determines the period information corresponding to the service type of the service corresponding to the TB according to the corresponding relationship between the service type and the period information;
mode 2, the terminal determines the period information corresponding to the service priority of the service corresponding to the TB according to the corresponding relationship between the service priority and the period information;
mode 3, the terminal obtains the periodic information of the service corresponding to the TB through a high layer;
wherein the period information is used for indicating whether the service is a periodic service.
3. The method of claim 1, wherein the current transmission is an initial transmission and the start of the sub-resource selection window is the start of the resource selection window.
4. The method of claim 1, wherein the terminal determines that the sub-resource selection window used by the TB in the current transmission is before the sub-resource selection window according to the target time, further comprising:
and the terminal determines that the number of times of transmitting the TB does not reach the maximum transmission number of times.
5. The method of claim 4, wherein the terminal determines the maximum number of transmissions based on some or all of the following information:
relative vehicle speed, synchronization accuracy, congestion condition, service priority, quality of service (QoS), whether TB is segmented service packet data or not, and service type.
6. The method of claim 1, wherein the current transmission is a repeated transmission, and the determining, by the terminal, a sub-resource selection window in the resource selection window used in the current transmission comprises:
the terminal determines the end points of a plurality of sub-resource selection windows from the resource selection windows according to the maximum transmission times;
and the terminal determines the end point of the sub-resource selection window used in the current transmission from the end points of the sub-resource selection windows according to the transmission times of the TB, and takes the target time + M as the starting point of the sub-resource selection window used in the current transmission, wherein M is the number of the TTI transmission time slots.
7. The method of claim 1, further comprising:
and the terminal determines the size of N according to the system configuration or the condition of receiving feedback within a period of time.
8. The method of claim 1, wherein before the terminal divides the partial window of the resource selection window into N windows, further comprising:
and the terminal determines that the transmission times do not reach the maximum transmission times after the transmission.
9. The method of claim 8, wherein the determining, by the terminal, the sub-resource selection window in the resource selection window used in the current transmission comprises:
and if the transmission times after the transmission reaches the maximum transmission times, the terminal takes part of the windows in the resource selection window as the sub-resource selection window used by the transmission.
10. The method according to claim 1, wherein the resource selected by the terminal from the determined sub-resource selection window is a resource for time division multiplexing of a target terminal, wherein the target terminal is a terminal performing unicast with the terminal and/or a terminal performing the same multicast with the terminal; and/or
And the resources selected by the terminal from the determined sub-resource selection window are resources except for the resources used by the terminal in a feedback mode.
11. The method of claim 1, further comprising:
and the terminal adds indication information used for indicating the transmission block to which the selected resource belongs to the scheduling distribution information corresponding to the current transmission of the TB.
12. The method of claim 11, wherein the information indicating the transport block to which the selected resource belongs is a transport block sequence number and/or resource indication information for initially transmitting the TB.
13. The method according to any of claims 1 to 12, wherein if the redundancy versions of the same TB are different for each transmission, the terminal adds a current transmission number to the scheduling assignment information, wherein the current transmission corresponds to the current transmission number of the TB.
14. A terminal for traffic transmission, wherein the terminal is a terminal of V2X, comprising: a processor and a memory;
the processor is used for reading the program in the memory and executing the following processes:
determining a sub-resource selection window in a resource selection window used by the TB for the current transmission; selecting resources from the determined sub-resource selection window; transmitting the TB over the selected resource;
wherein the transmission is an initial transmission or a repeated transmission;
if the service corresponding to the TB is a periodic service, the scheduling mode for initially transmitting the TB is an SPS scheduling mode, and the scheduling mode for repeatedly transmitting the TB is a DS scheduling mode; and/or if the service corresponding to the TB is aperiodic service, the scheduling mode of the initial transmission and the repeated transmission of the TB is a DS scheduling mode;
the transmission is a repeat transmission, and the processor is further configured to:
determining a sub-resource selection window in a resource selection window used by the TB for the current transmission after determining that NACK feedback is received at the target moment or ACK feedback is not received at the target moment;
wherein the target time is a feedback time corresponding to the latest TB transmission;
the transmission is a repeat transmission, and the processor is specifically configured to:
dividing a partial window in the resource selection window into N windows, wherein N is an integer greater than 1, the starting point of the partial window is the target time, and the end point of the partial window is the end point of the resource selection window;
and taking the end point of the foremost window in the N windows as the end point of the sub-resource selection window used for the current transmission, and taking the target time + M as the starting point of the sub-resource selection window used for the current transmission, wherein M is the number of TTI transmission time slots.
15. The terminal of claim 14, wherein the processor determines whether the traffic corresponding to the TB is periodic traffic by one of:
mode 1, according to the corresponding relation between the service type and the cycle information, determining the cycle information corresponding to the service type of the service corresponding to the TB;
mode 2, according to the corresponding relationship between the service priority and the cycle information, determining the cycle information corresponding to the service priority of the service corresponding to the TB;
mode 3, obtaining the periodic information of the service corresponding to the TB through a high layer;
wherein the period information is used for indicating whether the service is a periodic service.
16. The terminal of claim 14, wherein the current transmission is an initial transmission, and the start of the sub-resource selection window is the start of the resource selection window.
17. The terminal of claim 14, wherein the processor is further configured to:
and after the number of times of transmitting the TB is determined to be less than the maximum transmission number of times, determining a sub-resource selection window in the resource selection window used by the TB for the current transmission according to the target moment.
18. The terminal of claim 17, wherein the processor determines the maximum number of transmissions based on some or all of the following information:
relative vehicle speed, synchronization accuracy, congestion condition, service priority, QoS, whether TB is segmented service packet data or not, and service type.
19. The terminal of claim 14, wherein the processor is further configured to:
determining the end points of a plurality of sub-resource selection windows from the resource selection windows according to the maximum transmission times;
and determining the end point of the sub-resource selection window used in the current transmission from the end points of the plurality of sub-resource selection windows according to the number of times of transmitting the TB, and taking the target time + M as the starting point of the sub-resource selection window used in the current transmission, wherein M is the number of TTI transmission time slots.
20. The terminal of claim 14, wherein the processor is further configured to:
the size of N is determined according to the system configuration or the situation of receiving feedback within a period of time.
21. The terminal of claim 14, wherein the processor is further configured to:
and after the transmission times do not reach the maximum transmission times after the current transmission is determined, dividing part of windows in the resource selection window into N windows.
22. The terminal of claim 21, wherein the processor is further configured to:
and if the transmission times reach the maximum transmission times after the transmission, taking part of the windows in the resource selection window as the sub-resource selection window used by the transmission.
23. The terminal of claim 14, wherein the processor is further configured to:
selecting resources from the determined sub-resource selection window as resources for performing time division multiplexing on a target terminal, wherein the target terminal is a terminal performing unicast with the terminal and/or a terminal performing the same multicast with the terminal; and/or
And selecting resources from the determined sub-resource selection window as resources except for the resources used by the terminal in feedback.
24. The terminal of claim 14, wherein the processor is further configured to:
and adding indication type information for indicating the transport block to which the selected resource belongs to the scheduling assignment information corresponding to the current transmission of the TB.
25. The terminal of claim 24, wherein the information indicating the transport block to which the selected resource belongs is a transport block sequence number and/or resource indication information for initially transmitting the TB.
26. The terminal of any of claims 14 to 25, wherein the processor is further configured to:
and if the redundancy versions of the same TB are transmitted at each time are different, adding the current transmission times into the scheduling distribution information, wherein the current transmission corresponds to the transmission times of the current TB.
27. A computer storage medium having a computer program stored thereon, the program, when executed by a processor, implementing the steps of a method according to any one of claims 1 to 13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810135274.XA CN110139239B (en) | 2018-02-09 | 2018-02-09 | Method and terminal for service transmission |
| PCT/CN2019/071208 WO2019154005A1 (en) | 2018-02-09 | 2019-01-10 | Method for performing service tranmission, and terminal |
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| CN201810135274.XA CN110139239B (en) | 2018-02-09 | 2018-02-09 | Method and terminal for service transmission |
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| CN111294166B (en) * | 2019-03-22 | 2021-11-02 | 展讯通信（上海）有限公司 | Service transmission and service configuration sending method and device, storage medium, terminal and base station |
| CN113518325B (en) * | 2020-04-10 | 2024-01-05 | 中信科智联科技有限公司 | Resource selection method and terminal |
| EP4193741A4 (en) * | 2020-08-04 | 2023-09-27 | Telefonaktiebolaget LM Ericsson (publ) | Adaptive sensing based resource selection for d2d communication |
| CN114205908A (en) * | 2020-09-02 | 2022-03-18 | 索尼公司 | Electronic device and method for wireless communication, computer-readable storage medium |
| CN114286447A (en) * | 2021-12-27 | 2022-04-05 | 中国联合网络通信集团有限公司 | Method, device and storage medium for adjusting scheduling priority |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442446A (en) * | 2013-08-01 | 2013-12-11 | 奥维通信股份有限公司 | Dynamic and semi-static combined dispatching method in LTE system |
| CN104811892A (en) * | 2014-01-29 | 2015-07-29 | 中兴通讯股份有限公司 | Resource allocation method, device and system |
| CN105338518A (en) * | 2014-07-31 | 2016-02-17 | 索尼公司 | Device and method in wireless communication system |
| CN106604404A (en) * | 2015-10-20 | 2017-04-26 | 大唐移动通信设备有限公司 | Method and device for service scheduling |
| CN107580340A (en) * | 2016-07-05 | 2018-01-12 | 普天信息技术有限公司 | A kind of resource regulating method in V2X networks |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11570754B2 (en) * | 2015-08-12 | 2023-01-31 | Interdigital Patent Holdings, Inc. | Methods, apparatus and systems for realizing vehicle to vehicle communications using long term evolution device to device communications |
| CN106559877B (en) * | 2015-09-24 | 2019-02-26 | 中兴通讯股份有限公司 | The sending method and device of car networking business, resource allocation method and device |
| EP3412090B1 (en) * | 2016-02-03 | 2019-10-23 | Telefonaktiebolaget LM Ericsson (PUBL) | Efficient periodic scheduling for wireless communications |
| CN107295643B (en) * | 2016-03-30 | 2019-12-13 | 电信科学技术研究院 | Scheduling method, device and equipment |
| US11051275B2 (en) * | 2016-07-07 | 2021-06-29 | Panasonic Intellectual Property Corporation Of America | Semi-persistent resource allocation behavior for V2X transmissions |
-
2018
- 2018-02-09 CN CN201810135274.XA patent/CN110139239B/en active Active
-
2019
- 2019-01-10 WO PCT/CN2019/071208 patent/WO2019154005A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442446A (en) * | 2013-08-01 | 2013-12-11 | 奥维通信股份有限公司 | Dynamic and semi-static combined dispatching method in LTE system |
| CN104811892A (en) * | 2014-01-29 | 2015-07-29 | 中兴通讯股份有限公司 | Resource allocation method, device and system |
| CN105338518A (en) * | 2014-07-31 | 2016-02-17 | 索尼公司 | Device and method in wireless communication system |
| CN106604404A (en) * | 2015-10-20 | 2017-04-26 | 大唐移动通信设备有限公司 | Method and device for service scheduling |
| CN107580340A (en) * | 2016-07-05 | 2018-01-12 | 普天信息技术有限公司 | A kind of resource regulating method in V2X networks |
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