CN114731239B - Conflict processing method and terminal equipment - Google Patents

Conflict processing method and terminal equipment Download PDF

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Publication number
CN114731239B
CN114731239B CN202080079721.XA CN202080079721A CN114731239B CN 114731239 B CN114731239 B CN 114731239B CN 202080079721 A CN202080079721 A CN 202080079721A CN 114731239 B CN114731239 B CN 114731239B
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resource
harq process
resources
selecting
terminal device
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CN114731239A (en
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付喆
卢前溪
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application relates to a conflict processing method and terminal equipment, wherein the method comprises the following steps: and under the condition that the HARQ process corresponding to the first resource and the HARQ process corresponding to the second resource have conflict, the terminal equipment determines the first resource or the second resource as a transmission resource. By using the embodiment of the application, an effective conflict resolution mechanism can be established.

Description

Conflict processing method and terminal equipment
Technical Field
The present application relates to the field of communications, and more particularly, to a method and terminal device for collision handling.
Background
The requirements of the fifth generation wireless communication technology 5G comprise three application scenes of enhanced mobile broadband eMBB, massive machine type communication mMTC and high-reliability low-delay communication uRLLC. Further, the need for the 5G industrial internet (Industrial Internet of Things, IIoT) includes supporting the transmission of business in 5G systems, such as industrial automation (Factory Automation), transmission automation (Transport Industry), and intelligent power distribution (Electrical Power Distribution). Based on the transmission requirements of low latency and high reliability, IIoT also introduces a scenario of time sensitive networks (Time Sensitive Network, TSN) or time sensitive communications (Time Sensitive Communication, TSC) in order to achieve accurate clock synchronization and reduce network latency.
It has been found that for IIoT or other scenarios with high transmission delay and reliability requirements, the network device is more likely to configure multiple resources for the same user device in a short time, which easily results in collisions between the individual resources, and existing systems have not yet available collision resolution mechanisms.
Disclosure of Invention
In view of this, the embodiments of the present application provide a conflict processing method and a terminal device, which can be used to establish an effective conflict resolution mechanism.
The embodiment of the application provides a conflict processing method, which is applied to terminal equipment and comprises the following steps: and under the condition that the HARQ process corresponding to the first resource and the HARQ process corresponding to the second resource have conflict, the terminal equipment determines the first resource or the second resource as a transmission resource.
The embodiment of the application also provides a terminal device, which comprises: and the resource determining module is used for determining whether the first resource or the second resource is used as a transmission resource when the HARQ process corresponding to the first resource and the HARQ process corresponding to the second resource have conflict.
The embodiment of the application also provides a terminal device, which comprises: a processor and a memory for storing a computer program, the processor invoking and running the computer program stored in the memory, performing the steps of the conflict handling method as described above.
The embodiment of the application also provides a chip, which comprises: and a processor for calling and running the computer program from the memory, so that the device on which the chip is mounted performs the steps of the conflict processing method as described above.
The embodiment of the application also provides a computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the steps of the conflict processing method as described above.
Embodiments of the present application also provide a computer program product comprising computer program instructions, wherein the computer program instructions cause a computer to perform the steps of the conflict handling method as described above.
The embodiment of the present application also provides a computer program that causes a computer to execute the steps of the conflict processing method as described above.
The conflict processing mechanism of the embodiment of the application confirms that when the terminal equipment encounters the condition that a plurality of resources generate HARQ process conflict, the resources to be used can be selected from the plurality of resources, and the confusion of resource analysis caused by the HARQ process conflict can be avoided. The embodiment of the application can be used for defining the behavior of the terminal equipment, correspondingly reducing the network complexity and improving the system performance to a certain extent.
Drawings
Fig. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application.
FIG. 2 is a flow diagram of a conflict handling method of one embodiment of the present application.
FIG. 3 is a flow chart of a conflict handling method according to another embodiment of the present application.
Fig. 4 is a schematic block diagram of a terminal device according to an embodiment of the present application.
Fig. 5 is a schematic block diagram of a terminal device according to another embodiment of the present application.
Fig. 6 is a schematic block diagram of a communication device of an embodiment of the present application.
Fig. 7 is a schematic block diagram of a chip of an embodiment of the application.
Fig. 8 is a schematic block diagram of a communication system of an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolution system of NR system, LTE-based access to unlicensed spectrum, LTE-U) system over unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system over unlicensed spectrum, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), fifth Generation communication (5 th-Generation, 5G) system, or other communication system, etc.
Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, as the communication technology advances, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) communication, and the like, to which the embodiments of the present application can also be applied.
Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivitv, DC) scenario, or a Stand Alone (SA) fabric scenario.
The embodiments of the present application describe various embodiments in connection with a network device and a terminal device, wherein: a terminal device may also be called a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, a User device, or the like. The terminal device may be a Station (ST) in a WLAN, may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) device, a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, and a next generation communication system, such as a terminal device in an NR network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.
The network device may be a device for communicating with the mobile device, the network device may be an Access Point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an Access Point, or a vehicle device, a wearable device, and a network device (gNB) in NR network, or a network device in future evolved PLMN network, etc.
In the embodiment of the present application, a network device provides a service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.
Fig. 1 schematically illustrates one network device 1100 and two terminal devices 1200, alternatively, the wireless communication system 1000 may include a plurality of network devices 1100, and the coverage area of each network device 1100 may include other numbers of terminal devices, which is not limited by the embodiment of the present application.
Optionally, the wireless communication system 1000 shown in fig. 1 may further include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF), and the present application is not limited thereto.
It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In order to clearly illustrate the idea of an embodiment of the present application, a brief description will be first given of the processing procedure of resource transmission and HARQ processes in a communication system.
In the art, a terminal UE may receive a Dynamic Grant (DG) resource dynamically scheduled by a network side during a service process, where the dynamic grant may be a grant scheduled by a physical downlink control channel (Physical downlink control channel, PDCCH) scrambled by a cell radio network temporary identifier (Cell Radio Network Temporary Identifier, C-RNTI), and the DG resource dynamically scheduled corresponds to one HARQ process, for example, HARQ process 1, and if the grant used in the HARQ process 1 is a grant (CG) resource configured before the dynamic scheduling, in this case, the UE considers that a CG retransmission scheduled by a configured RNTI (Configured Scheduling RNTI) or a new data indication field (New Data Indicator, NDI) is present for a CG new transmission, and therefore, the UE considers the current dynamic scheduling as a new transmission scheduling, and starts (or restarts) a CG timer (configured grant timer, CG timer). Based on this, the UE sends DG resource information of the current dynamic schedule and corresponding HARQ information (e.g., HARQ process 1) to the HARQ entity, determining to use DG resources for transmission on HARQ process 1.
It should be noted that, since the requirements of the existing system are not obvious, the situation that data collision may occur in the service processing is not considered in the processing procedure of the resource transmission and the HARQ process.
In particular, in the art, there may be various situations of "collision", such as: a collision between data channels, a collision between data information and data information, a collision between resources may occur, and in particular, a collision between DG resources and DG resources, a collision between DG resources and CG resources, a collision between CG resources and CG resources, or the like may occur.
The inventors of the present application have intensively studied and found that if collision occurs between a plurality of grant resources, particularly between DG resources and CG resources, there is a possibility that the HARQ processes of the plurality of grant collide with each other. In practical applications, problems are caused by this, and the following will describe the problems in detail.
Specifically, if a plurality of resources collide, the mutually-collided resources may overlap in the time domain (or in the frequency domain), in which case, the respective corresponding plurality of HARQ processes may be different, or at least two HARQ processes may appear to be identical, and if so, the HARQ process collision may be considered to occur.
In addition, in addition to the above-described HARQ process collision may occur when a plurality of resources collide, in the case where there is no resource collision, HARQ process collision may also occur. For example, although the time domain positions of two resources do not overlap, the two resources are closer together, and there is a possibility that the two resources correspond to the same HARQ process, and HARQ process collision occurs.
More specifically, in the resource transmission process of the UE, in the case that the first resource is not packetized, not transmitted or not transmitted, the UE may receive the dynamically scheduled second resource again, and may also have a third resource become available, where the HARQ process of the second resource or the available third resource may be the same as the HARQ process of the first resource.
For example, at time t1, the UE determines to use CG resource transmission, which may be denoted as grant 1 is available, and the HARQ process number of its corresponding HARQ process is "HARQ process id 1";
then, at time t2 (t 2 > t 1), the UE receives a dynamically scheduled DG resource scheduled by the network, which may be denoted as grant 2, where the HARQ process number of the HARQ process corresponding to grant 2 is also "HARQ process id 1", and HARQ process collision occurs;
at this time, CG resources (grant 1) and DG resources (grant 2) are available, but CG resources have not been packetized, not transmitted, or not transmitted, dynamically scheduled DG resources also need to be transmitted, and HARQ processes for both resources are the same.
Then, if one of the resources uses this HARQ process, it is ambiguous whether the other resource is also able to use the process, and further whether the other resource is also able to transmit normally. If the situation of the HARQ process conflict cannot be properly handled, or two resources in the HARQ process conflict cannot be properly handled, the UE end and the network end cannot definitely act with each other, so that repeated analysis and analysis are disordered, and the overall performance of the system is impaired.
To this end, an embodiment of the present application provides a method for processing a conflict, referring to fig. 2, the method includes:
s101, when a conflict exists between a hybrid automatic repeat request HARQ process corresponding to a first resource and a HARQ process corresponding to a second resource, the terminal equipment determines that the first resource or the second resource is used as a transmission resource.
The proposal of the embodiment of the application considers the situation that a plurality of resources generate HARQ process conflict, and definitely determines that the terminal equipment can select the resources to be used for transmission in the plurality of resources when encountering the situation, and can not cause the confliction of the resource analysis because of the HARQ process conflict, thereby definitely determining the behavior of the terminal equipment, reducing the network complexity and improving the system performance.
The embodiment of the application is applicable to various specific scenes, and can be the case that conflict exists between the first resource and the second resource (such as superposition of time domain positions of the two resources); it may also be the case that there is no conflict between the first resource and the second resource, i.e. the case of a general resource allocation. The reason is that in practical applications, such as a time-sensitive network system, no matter whether resource conflict occurs, HARQ process conflict may occur, and the embodiments of the present application are applicable to such situations and situations.
The HARQ process collision mentioned in the embodiment of the present application may be understood as at least one of the following descriptions:
● First description: the HARQ process corresponding to the first resource and the HARQ process corresponding to the second resource are the same HARQ process;
● The second description: the HARQ process number of the HARQ process corresponding to the first resource is the same as the HARQ process number of the HARQ process corresponding to the second resource.
Both the above descriptions indicate that the HARQ process where the first resource is configured is the same as the HARQ process where the second resource is configured, for example, the first resource may be configured to transmit on the HARQ process with HARQ process number 6, and at the same time, the second resource is also configured to transmit on the HARQ process with HARQ process number 6, that is, the HARQ processes corresponding to the two resources are the same HARQ process, and then the HARQ process collision is considered to occur, and the scheme of the embodiment of the present application needs to be adopted to handle the collision.
The implementation of the various embodiments of the present application will be described in detail below with respect to the transmission of different resource types.
In a first aspect, the embodiment of the present application considers that the first resource includes a configuration grant CG resource, and the second resource includes a dynamic grant DG resource, and a situation and a conflict handling scheme that may occur in a service processing are described below.
Referring to fig. 3, in one embodiment of the present application, the conflict processing method includes the steps of:
s201, terminal equipment receives configuration information and/or activation information corresponding to CG resources;
s202, a terminal device receives resource scheduling information, wherein the resource scheduling information is used for scheduling DG resources;
s203, the HARQ process corresponding to the CG resource collides with the HARQ process corresponding to the DG resource, and the terminal equipment determines that the DG resource is used as a transmission resource.
That is, after the terminal device receives the configuration information and/or the activation information of the CG resource, the terminal device will generally use the CG resource to transmit through the HARQ process configured by the network.
However, in the embodiment of the present application, the difference is that after the terminal device configures CG resources, it also receives resource scheduling information for dynamically scheduling DG resources by the network, and schedules DG resources for transmission; further, the CG resource has HARQ process collision with the DG resource currently scheduled.
In the above collision scenario, the terminal device in the embodiment of the present application will determine to use DG resources as transmission resources. In another embodiment, the terminal device may further select the DG resource for transmission according to network indication information or predefined information.
It can be seen that when the HARQ process of the CG resource collides with the HARQ process of the DG resource, the terminal device in the embodiment of the present application determines to use the DG resource as a transmission resource, or preferably selects the DG resource for transmission, so as to make the behavior of the terminal device in the corresponding scenario clear, that is, use DG resource transmission or preferably use DG resource transmission. Correspondingly, the network device also clarifies the above behavior of the terminal device, so that confusion caused by HARQ process conflict can be avoided during resource scheduling and analysis, network complexity can be reduced, and the requirement of service quality (Quality of Service, qoS) of the service to be transmitted can be met to the greatest extent.
In the embodiment of the application, the resource scheduling information can be used for scheduling DG resources for data retransmission and also can be used for scheduling DG resources for data new transmission, and is suitable for the conflict resolution mechanism of the embodiment of the application.
Specifically, if the network device determines that data is needed to be newly transmitted (or data is retransmitted), DCI with NDI flipped (or not flipped) is issued to the terminal device, and the resource scheduling information includes the DCI, the terminal device can determine whether the data is newly transmitted or retransmitted this time according to the NDI information. Of course, in other embodiments, DG resources may also be retransmission scheduled for CS-RNTI, and ndi=1 at this time. The embodiment of the present application is not particularly limited thereto.
Taking the first resource as CG resource and the second resource as DG resource as an example, if there is an HARQ process conflict between the two resources, the resource type selected by the terminal device further solves the problem how to complete transmission by the HARQ process for the two subsequent resources, or whether the two resources still transmit, and the like, and is described in detail in the following embodiments.
In the embodiment of the present application, if two resources have a process conflict, the first resource and the second resource correspond to the same HARQ process, hereinafter referred to as a first HARQ process, and after the terminal device determines that the second resource is used, at least one of the following multiple processing manners may be further adopted for processing.
Mode one:
for the second resource, the terminal device uses the second resource to transmit data on the first HARQ process.
Mode two:
for a first resource, the terminal device uses the first resource to transmit data on a second HARQ process; wherein the second HARQ process is not the same HARQ process as the first HARQ process.
Mode three:
for the first resource, the terminal equipment uses the first resource to transmit data on a third HARQ process; wherein the third HARQ process comprises a buffer-available HARQ process.
Mode four:
for the first resource, the terminal equipment uses the first resource to transmit data on a fourth HARQ process; the difference between the HARQ process number of the fourth HARQ process and the HARQ process number of the first HARQ process is K, where K is an integer, and the value of K may be a predefined value, may be indicated by a network, or may be determined by the terminal device.
Mode five:
for the first resource, the terminal device does not use the first resource as a transmission resource, or does not transmit the first resource.
In addition, for each processing manner, the terminal device may also send HARQ process information currently used by the first resource and/or the second resource to the network device.
Taking the first resource as CG resource as an example, after determining the HARQ process corresponding to the CG resource, the MAC PDU generated by the CG resource may be placed in the HARQ process (e.g., the second HARQ process, the third HARQ process, or the fourth HARQ process), and HARQ process information used for transmission of the CG resource is indicated to the base station through a new MAC CE or dedicated information (e.g., codebook information, scrambling code information, etc.) in the MAC PDU.
The HARQ process information of the resources can be updated in time based on the processing network side.
In a second aspect, the embodiment of the present application further considers a processing scheme when the first resource includes CG resources, the second resource also includes CG resources, and HARQ process collision occurs between the CG resources and the CG resources.
Specifically, the terminal device may select one of the two CG resources as the transmission resource to be used according to a preset rule or according to the first network indication information. Wherein the preset rule or the first network indication information may include at least one of the following:
the terminal equipment can be selected, for example, the terminal equipment can be realized on the basis of the terminal equipment, and can also adopt a proper algorithm and the like for selection;
randomly selecting;
selecting CG resources corresponding to the MAC PDU which has completed the packet;
selecting a CG resource that is available first;
CG resources available after selection;
selecting CG resource for retransmission;
selecting CG resource with maximum loadable data quantity;
selecting CG resource with highest priority for carrying logic channel LCH;
selecting CG resource with highest loadable service priority;
selecting CG resource capable of bearing specific service;
selecting CG resource with highest priority;
selecting CG resources with a particular identity (e.g., priority transmission identity, etc.);
Selecting CG resources with the smallest resource identification (e.g., CG index);
the CG resource with the largest resource identification (e.g., CG index) is selected.
In a third aspect, the embodiment of the present application further considers a processing scheme when the first resource includes DG resources, the second resource also includes DG resources, and HARQ process collision occurs between the two.
Specifically, the terminal device may select one of the two DG resources as the transmission resource to be used according to a preset rule or according to the second network indication information. Wherein the preset rule or the second network indication information may include at least one of:
the terminal equipment can be selected, for example, the terminal equipment can be realized on the basis of the terminal equipment, and can also adopt a proper algorithm and the like for selection;
randomly selecting;
selecting DG resources corresponding to the MAC PDU which has completed the packet;
the DG resource that arrives first is selected,
DG resources arrived after selection;
selecting a retransmission scheduling DG resource;
selecting DG resources with the largest loadable data volume;
selecting DG resources with highest priority capable of bearing LCH;
selecting DG resources with highest loadable service priority;
selecting DG resources capable of bearing specific services;
selecting DG resources with highest priority;
Selecting DG resources having a particular identity (e.g., a priority transmission identity, etc.);
selecting DG resources with the smallest resource identification (e.g., DG index);
the DG resource with the largest resource identification (e.g., DG index) is selected.
Based on the description of the above embodiments, it can be seen that the conflict solution of the embodiment of the present application can be widely applied to a scenario in which HARQ process conflicts occur between different types of resources or between resources of the same type, and the behavior of the terminal device can be clarified.
The implementation of the embodiments of the present application is described below by way of two specific examples.
Example 1: DG resources for retransmission and CG resources for new transmission
In this embodiment, first, the UE receives CG resources configured by the network device through radio resource control (Radio Resource Control, RRC), where CG index corresponding to the CG resources is 1, and HARQ process numbers of configured HARQ processes are HARQ process id1 and HARQ process id2.
At time t1, the UE determines that the configured CG resource is available, and at this time selects or determines that the CG index 1 resource, i.e., grant 1, corresponds to a HARQ process id of 1, e.g., CG resource is used for transmitting de-prioritized deprioritized MAC PDU, i.e., MAC PDU that was previously packetized but not transmitted due to resource collision.
At time t2, the UE receives a DG schedule, the scheduled HARQ process being HARQ process id1, and the DG is a retransmission schedule, e.g. also used for retransmitting said deprioritized MAC PDU. At this time, there may or may not be a resource conflict between DG resources and CG resources.
In case of a collision of the HARQ processes, the UE selects a resource for transmission or selects a resource for transmission using the collision process, as follows:
when the HARQ processes of DG resources and CG resources collide, namely, the first HARQ process of the HARQ process id1 is adopted, DG resource transmission is used or DG resource transmission is prioritized.
Accordingly, CG resources may not be used, but may also be used. Specifically, MAC PDUs generated corresponding to CG resources may be placed in the second HARQ process. The second HARQ process should satisfy at least one of the following conditions:
(1) different from the first HARQ process;
(2) is a HARQ process for which HARQ buffers are available (HARQ buffer available);
((3) the difference from the HARQ process number of the first HARQ process is K, K being an integer, K being a predefined value, indicated by the network or determined by said terminal device.
Further, the HARQ id currently used by the CG resource of the base station may be indicated by a new MAC CE or dedicated information in the MAC PDU.
Finally, in case of this HARQ process collision, the UE transmits using the selected DG resource.
Example 2: DG resources for new transfers and CG resources for new transfers
In this embodiment, first, the UE receives CG resources configured by the network device through radio resource control (Radio Resource Control, RRC), where CG index corresponding to the CG resources is 1, and HARQ process numbers of configured HARQ processes are HARQ process id1 and HARQ process id2.
At time t1, the UE determines that the configured CG resource is available, and at this time selects or determines that the CG index 1 resource, i.e., grant 1, corresponds to a HARQ process id of 1, e.g., CG resource is used for transmitting de-prioritized deprioritized MAC PDU, i.e., MAC PDU that was previously packetized but not transmitted due to resource collision.
At time t2, the UE receives a DG schedule, the scheduled HARQ process is process id1, and the DG is a new transmission schedule, e.g., the network side does not need to receive the deprioritized MAC PDU any more, but needs to receive a new data transmission. At this time, there may or may not be a resource conflict between DG resources and CG resources.
In case of a collision of the HARQ processes, the UE selects a resource for transmission or selects a resource for transmission using the collision process, as follows:
When the HARQ processes of DG resources and CG resources collide, namely, the first HARQ process of the HARQ process id1 is adopted, DG resource transmission is used or DG resource transmission is prioritized.
Accordingly, CG resources may not be used, but may also be used. Specifically, MAC PDUs generated corresponding to CG resources may be placed in the second HARQ process. The second HARQ process should satisfy at least one of the following conditions:
(1) different from the first HARQ process;
(2) is a HARQ process for which HARQ buffers are available (HARQ buffer available);
(3) the difference from the HARQ process number of the first NARQ process is K, K being an integer, K being a predefined value, indicated by the network or determined by the terminal device.
Further, the HARQ id currently used by the CG resource of the base station may be indicated by a new MAC CE or dedicated information in the MAC PDU.
Finally, in case of this HARQ process collision, the UE transmits using the selected DG resource.
The specific arrangements and implementations of embodiments of the present application have been described above in terms of various embodiments. By utilizing at least one embodiment, it is clear that when the terminal equipment encounters the situation that the HARQ process conflict occurs in different resources, the resources to be used for transmission can be selected from the different resources, and the resource analysis confusion caused by the HARQ process conflict is avoided. The embodiment of the application can be used for defining the behaviors of the terminal equipment and the network equipment, reducing the network complexity and improving the system performance to a certain extent.
Corresponding to the processing method of at least one embodiment described above, an embodiment of the present application further provides a terminal device 100, referring to fig. 4, which includes:
the resource determining module 110 is configured to determine to use the first resource or the second resource as a transmission resource when there is a conflict between the HARQ process corresponding to the first resource and the HARQ process corresponding to the second resource.
Optionally, in the embodiment of the present application, a conflict exists between the first resource and the second resource; or, there is no conflict between the first resource and the second resource.
Optionally, in the embodiment of the present application, the HARQ process corresponding to the first resource and the HARQ process corresponding to the second resource are the same HARQ process; or the HARQ process number of the HARQ process corresponding to the first resource is the same as the HARQ process number of the HARQ process corresponding to the second resource.
Optionally, in an embodiment of the present application, the first resource includes a configuration grant CG resource; the second resource comprises a dynamically authorized DG resource; wherein, the terminal device determines to use the DG resource as a transmission resource.
Optionally, referring to fig. 5, in an embodiment of the present application, the terminal device 100 further includes:
The information receiving module 120 is configured to receive configuration information and/or activation information corresponding to the CG resource, and also configured to receive resource scheduling information, where the resource scheduling information is used to schedule the DG resource.
Optionally, in the embodiment of the present application, the resource scheduling information is used to schedule the DG resource to perform data retransmission; or, the resource scheduling information is used for scheduling the DG resource for data new transmission.
Optionally, in the embodiment of the present application, the terminal device 100 selects the DG resource for transmitting according to network indication information or predefined information.
Optionally, in an embodiment of the present application, the first resource corresponds to a first HARQ process; the second resource corresponds to the first HARQ process; the terminal device 100 uses the second resource to transmit data on the first HARQ process.
Optionally, referring to fig. 5, in an embodiment of the present application, the terminal device 100 further includes:
a data transmission module 130, configured to transmit data on a second HARQ process using the first resource; wherein the second HARQ process is not the same HARQ process as the first HARQ process.
Optionally, in the embodiment of the present application, the terminal device 100 uses the first resource to transmit data on a third HARQ process; wherein the third HARQ process comprises a buffer-available HARQ process.
Optionally, in the embodiment of the present application, the terminal device 100 uses the first resource to transmit data on a fourth HARQ process; wherein, the difference between the HARQ process number of the fourth HARQ process and the HARQ process number of the first HARQ process is K, K is an integer, and the value of K is a predefined value, indicated by a network device, or determined by the terminal device.
Optionally, referring to fig. 5, in an embodiment of the present application, the terminal device 100 further includes:
and the HARQ process information sending module 140 is configured to send, to the network device, HARQ process information currently used by the first resource and/or the second resource.
Alternatively, in the embodiment of the present application, the terminal device 100 does not use the first resource as a transmission resource; alternatively, the terminal device 100 does not transmit the first resource.
Optionally, in the embodiment of the present application, the first resource and the second resource are configured and authorized CG resources; wherein, the terminal device 100 selects one of the first resource and the second resource as a used transmission resource according to a preset rule or first network indication information.
Optionally, in the embodiment of the present application, the first resource and the second resource are dynamically authorized DG resources; wherein, the terminal device 100 selects one of the first resource and the second resource as a used transmission resource according to a preset rule or second network indication information.
Fig. 6 is a schematic block diagram of a communication device 600 according to an embodiment of the present application, wherein the communication device 600 includes a processor 610, and the processor 610 may call and run a computer program from a memory to implement the method in the embodiment of the present application.
Optionally, the communication device 600 may further comprise a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the method in an embodiment of the application.
The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.
Optionally, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.
The transceiver 630 may include a transmitter and a receiver, among others. Transceiver 630 may further include antennas, the number of which may be one or more.
Optionally, the communication device 600 may be a network device according to the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the network device in each method according to the embodiment of the present application, which is not described herein for brevity.
Optionally, the communication device 600 may be a terminal device according to the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the terminal device in each method according to the embodiment of the present application, which is not described herein for brevity.
Fig. 7 is a schematic block diagram of a chip 700 according to an embodiment of the present application, wherein the chip 700 includes a processor 710, and the processor 710 may call and run a computer program from a memory to implement the method in the embodiment of the present application.
Optionally, chip 700 may also include memory 720. Wherein the processor 710 may call and run a computer program from the memory 720 to implement the method in an embodiment of the application.
Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.
Optionally, the chip 700 may also include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.
Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.
Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.
Optionally, the chip may be applied to the terminal device in the embodiment of fig. 4 or fig. 5, and the chip may implement the corresponding flow implemented by the terminal device in each method of the embodiment of the present application, which is not described herein for brevity.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.
The processors mentioned above may be general purpose processors, digital signal processors (digital signal processor, DSP), off-the-shelf programmable gate arrays (field programmable gate array, FPGA), application specific integrated circuits (application specific integrated circuit, ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general-purpose processor mentioned above may be a microprocessor or any conventional processor.
The memory mentioned above may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM).
It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.
Fig. 8 is a schematic block diagram of a communication system 800 according to an embodiment of the application, the communication system 800 comprising a terminal device 810 and a network device 820.
In the embodiment of the present application, in the case that there is a conflict between the HARQ process corresponding to the first resource and the HARQ process corresponding to the second resource, the terminal device 810 determines to use the first resource or the second resource as a transmission resource.
Wherein the terminal device 810 may be used to implement the corresponding functions implemented by the terminal device in the method according to the embodiment of the present application, and the network device 820 may be used to implement the corresponding functions implemented by the network device in the method according to the embodiment of the present application. For brevity, the description is omitted here.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.
It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily appreciate variations or alternatives within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (16)

1. A collision handling method applied to a terminal device, the method comprising:
in the case that a conflict exists between a hybrid automatic repeat request (HARQ) process corresponding to a first resource and a HARQ process corresponding to a second resource, if the first resource comprises a Configuration Grant (CG) resource, the second resource comprises a Dynamic Grant (DG) resource, the CG resource corresponds to the first HARQ process, the DG resource is used for transmitting data on the first HARQ process, and the CG resource is used for transmitting data on a second HARQ process, and the second HARQ process and the first HARQ process are not the same HARQ process;
The second HARQ process comprises an HARQ process with available buffer, and the difference between the HARQ process number of the second HARQ process and the HARQ process number of the first HARQ process is K, wherein K is an integer.
2. The method of claim 1, wherein,
a conflict exists between the first resource and the second resource;
or,
there is no conflict between the first resource and the second resource.
3. The method of claim 1, wherein,
the HARQ process corresponding to the first resource and the HARQ process corresponding to the second resource are the same HARQ process;
or,
and the HARQ process number of the HARQ process corresponding to the first resource is the same as the HARQ process number of the HARQ process corresponding to the second resource.
4. The method of claim 1, wherein the method further comprises:
the terminal equipment receives configuration information and/or activation information corresponding to the CG resources;
and the terminal equipment receives resource scheduling information, wherein the resource scheduling information is used for scheduling the DG resources.
5. The method of claim 4, wherein,
the resource scheduling information is used for scheduling the DG resources for data retransmission;
or,
and the resource scheduling information is used for scheduling the DG resources for data new transmission.
6. The method of claim 1, wherein the value of K is a predefined value, indicated by a network device, or determined by the terminal device.
7. The method of claim 1, wherein the method further comprises:
and the terminal equipment sends the HARQ process information currently used by the first resource and/or the second resource to network equipment.
8. The method of claim 1, wherein,
and if the first resource and the second resource are both configured and authorized CG resources, the terminal equipment selects one of the first resource and the second resource as a used transmission resource according to a preset rule or first network indication information.
9. The method of claim 8, wherein the preset rule or first network indication information comprises at least one of:
selecting by the terminal device;
randomly selecting;
selecting CG resources corresponding to the media access control layer protocol data unit MAC PDU which is packed completely;
selecting CG resources that are available first;
CG resources available after selection;
selecting CG resource for retransmission;
selecting CG resource with maximum loadable data quantity;
selecting CG resource with highest priority for carrying logic channel LCH;
Selecting CG resource with highest loadable service priority;
selecting CG resource capable of bearing specific service;
selecting CG resource with highest priority;
selecting CG resources having a particular identity;
selecting CG resources with the minimum resource identifiers;
and selecting CG resources with the largest resource identification.
10. The method of claim 1, wherein,
and if the first resource and the second resource are dynamic authorized DG resources, the terminal equipment selects one of the first resource and the second resource as a used transmission resource according to a preset rule or second network indication information.
11. The method of claim 10, wherein the preset rule or second network indication information comprises at least one of:
selecting by the terminal device;
randomly selecting;
selecting DG resources corresponding to the MAC PDU which has completed the packet;
the DG resource that arrives first is selected,
DG resources arrived after selection;
selecting a retransmission scheduling DG resource;
selecting DG resources with the largest loadable data volume;
selecting DG resources with highest priority capable of bearing LCH;
selecting DG resources with highest loadable service priority;
selecting DG resources capable of bearing specific services;
Selecting DG resources with highest priority;
selecting DG resources having a particular identification;
selecting DG resources with the minimum resource identifiers;
the DG resource with the largest resource identity is selected.
12. A terminal device, comprising:
a resource determining module, configured to, in case that a hybrid automatic repeat request HARQ process corresponding to a first resource collides with an HARQ process corresponding to a second resource, if the first resource includes a configuration grant CG resource, the second resource includes a dynamic grant DG resource, and the CG resource corresponds to a first HARQ process, and the DG resource corresponds to the first HARQ process, transmit data on the first HARQ process using the DG resource, and transmit data on a second HARQ process using the CG resource, where the second HARQ process and the first HARQ process are not the same HARQ process;
the second HARQ process comprises an HARQ process with available buffer, and the difference between the HARQ process number of the second HARQ process and the HARQ process number of the first HARQ process is K, wherein K is an integer.
13. A terminal device, comprising: a processor and a memory for storing a computer program, the processor invoking and running the computer program stored in the memory to perform the steps of the conflict handling method according to any of claims 1 to 11.
14. A chip, comprising:
a processor for calling and running a computer program from a memory, so that a device on which the chip is mounted performs the steps of the conflict handling method according to any of claims 1 to 11.
15. A computer readable storage medium storing a computer program, wherein,
the computer program causes a computer to execute the steps of the conflict processing method according to any one of claims 1 to 11.
16. A communication system, comprising: terminal equipment and network equipment, wherein,
the terminal device is configured to perform the steps of the collision handling method according to any of claims 1 to 11.
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