CN113647171A - Method and apparatus for wireless communication - Google Patents
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Abstract
A method and apparatus of wireless communication are provided, the method comprising: receiving scheduling information which is sent by network equipment and used for scheduling DG resources; and under the condition that the target HARQ process used by the DG resources is occupied by CG resources, ignoring the DG resources or not packaging the Media Access Control (MAC) Protocol Data Unit (PDU) corresponding to the DG resources. Based on the technical scheme, by neglecting DG resources or not packing MAC PDUs corresponding to the DG resources, when the HARQ process corresponding to the CG resources and the HARQ process corresponding to the DG resources conflict, data borne on the CG resources can be normally sent through the target HARQ process, and then the service QoS requirement is ensured.
Description
The embodiments of the present application relate to the field of communications, and more particularly, to a method and apparatus for wireless communication.
Hybrid Automatic Repeat Request (HARQ) process collisions of configuration grant (Configured, grant, CG) and Dynamic grant (Dynamic, grant, DG) require Further research (FFS).
Aiming at an Industrial internet of Things (IIoT) or a New air interface-unauthorized (NR-U) communication network, according to the existing protocol, the priority of DG resources is always higher than that of CG resources no matter whether the DG resources and the CG resources are overlapped in a time domain or not; when the HARQ processes corresponding to two resources collide, the following problems will occur:
if the CG resource has been grouped or the grouped packet has been sent to a physical layer (PHY), once the DG resource arrives, a Media Access Control (MAC) Protocol Data Unit (PDU) corresponding to the CG resource that has not been subjected to air interface transmission or has been subjected to air interface transmission and is stored in the HARQ process is flushed (flush), which causes Data packet loss and affects Quality of service (QoS) requirements.
If the DG resources are grouped or the grouped packets are sent to the PHY, once the CG timer (timer) runs, even if the priority of the CG resources is high, the terminal device has no way to perform MAC PDU grouping on the CG resources, which causes a problem that a service to be carried in the CG resources with high priority cannot be sent in time or fails to be sent, thereby causing a problem that the service QoS requirement cannot be guaranteed.
Therefore, how to ensure the service QoS requirement when the HARQ process corresponding to the CG resource and the HARQ process corresponding to the DG resource collide is a technical problem that needs to be solved in the field.
Disclosure of Invention
A method and a device for wireless communication are provided, which can ensure the service QoS requirement when CG resources and DG resources conflict.
In a first aspect, a method of wireless communication is provided, including:
receiving scheduling information which is sent by network equipment and used for scheduling dynamic grant DG resources;
and under the condition that a target hybrid automatic repeat request (HARQ) process used by the DG resources is occupied by configured authorized CG resources, ignoring the DG resources or not packaging a Media Access Control (MAC) Protocol Data Unit (PDU) corresponding to the DG resources.
In a second aspect, a method of wireless communication is provided, including:
receiving scheduling information which is sent by network equipment and used for scheduling dynamic grant DG resources;
determining to configure an authorized CG resource;
and replacing the MAC PDU corresponding to the DG resource by the media access control MAC protocol data unit PDU corresponding to the CG resource under the condition that a target hybrid automatic repeat request (HARQ) process used by the CG resource is occupied by the DG resource.
In a third aspect, a terminal device is provided, configured to perform the method in the first aspect or each implementation manner thereof. Specifically, the terminal device includes a functional module configured to execute the method in the first aspect or each implementation manner thereof.
In a fourth aspect, a terminal device is provided, configured to perform the method in the second aspect or each implementation manner thereof. Specifically, the terminal device includes a functional module for executing the method in the second aspect or each implementation manner thereof.
In a fifth aspect, a terminal device is provided that includes a processor and a memory. The memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory to perform the method in the first aspect or each implementation manner thereof.
In a sixth aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method of the second aspect or each implementation manner thereof.
In a seventh aspect, a chip is provided for implementing the method in any one of the first to second aspects or its implementation manners. Specifically, the chip includes: a processor, configured to call and run a computer program from a memory, so that a device in which the chip is installed performs the method in any one of the first aspect to the second aspect or the implementation manners thereof.
In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to perform the method of any one of the first to second aspects or implementations thereof.
In a ninth aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of any one of the first to second aspects or implementations thereof.
A tenth aspect provides a computer program that, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.
Based on the technical scheme, by neglecting DG resources or not packing MAC PDUs corresponding to the DG resources, or replacing the MAC PDUs corresponding to the DG resources by the MAC PDUs corresponding to the CG resources, when the HARQ process corresponding to the CG resources and the HARQ process corresponding to the DG resources conflict, data borne on the CG resources can be normally sent through the target HARQ process, and then the service QoS requirement is ensured.
Fig. 1 is an example of an application scenario of the present application.
Fig. 2 is a schematic flow chart of a method of wireless communication of an embodiment of the present application.
Fig. 3 is another schematic flow chart of a method of wireless communication of an 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 communication device of an embodiment of the present application.
Fig. 6 is a schematic block diagram of a chip of an embodiment of the present application.
Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
As shown in fig. 1, communication system 100 may include a terminal device 110 and a network device 120. Network device 120 may communicate with terminal device 110 over the air. Multi-service transport is supported between terminal device 110 and network device 120.
It should be understood that the embodiment of the present application is only illustrated as the communication system 100, but the embodiment of the present application is not limited thereto. That is to say, the technical solution of the embodiment of the present application can be applied to various communication systems, for example: a Long Term Evolution (LTE) System, a Time Division Duplex (TDD) System, a Universal Mobile Telecommunications System (UMTS), a 5G communication System (also referred to as a New Radio (NR) communication System), a future communication System, or the like.
In communication system 100 shown in fig. 1, network device 120 may be an access network device that communicates with terminal device 110. An access network device may provide communication coverage for a particular geographic area and may communicate with terminal devices 110 (e.g., UEs) located within the coverage area.
The Network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (Long Term Evolution, LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the Network device 120 may be a relay station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a Network device in a Public Land Mobile Network (PLMN) for future Evolution, or the like.
For example, the terminal device 110 may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolution network, etc.
The terminal Device 110 may be used for Device-to-Device (D2D) communication.
The wireless communication system 100 may further include a Core network device 130 in communication with the base station, where the Core network device 130 may be a 5G Core (5G Core, 5GC) device, such as an Access and Mobility Management Function (AMF), an Authentication Server Function (AUSF), a User Plane Function (UPF), and a Session Management Function (SMF). Alternatively, the Core network device 130 may also be an Evolved Packet Core (EPC) device of the LTE network, for example, a Session Management Function + Core Packet Gateway (SMF + PGW-C) device of the Core network. It is understood that SMF + PGW-C may perform the functions that SMF and PGW-C can perform simultaneously. In the network evolution process, the core network device may also be called by other names, or a new network entity is formed by dividing the functions of the core network, which is not limited in this embodiment of the present application.
Communication between the functional units in the communication system 100 may also be implemented by establishing a connection through a next generation Network (NG) interface.
For example, the terminal device establishes an air interface connection with the access network device through the NR interface, and is used to transmit user plane data and control plane signaling; the terminal equipment can establish control plane signaling connection with the AMF through an NG interface 1 (N1 for short); the access network equipment, such as a next generation radio access base station (gNB), can establish a user plane data connection with the UPF through an NG interface 3 (N3 for short); the access network equipment can establish a control plane signaling connection with the AMF through an NG interface 2 (N2 for short); the UPF can establish a control plane signaling connection with the SMF through an NG interface 4 (N4 for short); the UPF may interact with the data network via NG interface 6 (abbreviated N6); the AMF can establish a control plane signaling connection with the SMF through an NG interface 11 (N11 for short); the SMF may establish a control plane signaling connection with the PCF via NG interface 7 (abbreviated N7).
Fig. 1 exemplarily shows one base station, one core network device, and two terminal devices, and optionally, the wireless communication system 100 may include a plurality of base station devices and may include other numbers of terminal devices within the coverage area of each base station, which is not limited in this embodiment of the present application.
It should be understood that, in the embodiments of the present application, devices having a communication function in a network/system may be referred to as communication devices. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 120 and a terminal device 110 having a communication function, and the network device 120 and the terminal device 110 may be the devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.
It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
A network to which the communication system 100 used in the embodiment of the present application is applied will be exemplified below.
In some embodiments of the present application, the communication system 100 may be adapted for use with the fifth Generation (5-Generation, 5G) Industrial Internet (IIoT).
The 5G IIoT can support the transmission of services such as industrial automation (Factory automation), Transport automation (Transport Industry), intelligent Power (Electrical Power Distribution) and the like in a 5G system.
However, 5G IIoT may have resource conflicts.
The resource conflict includes a conflict between a data channel and a data channel, which may include a conflict between a DG resource and a DG resource, a conflict between a DG resource and a CG resource, and a conflict between a CG resource and a CG resource.
For example, when a collision occurs between multiple grant (grant) resources, particularly between DG and CG, there is a possibility that the HARQ processes used by two grants are the same. For example, if a CG resource has been grouped or a grouped packet has been sent to a physical layer (PHY), once a DG resource arrives, a Media Access Control (MAC) Protocol Data Unit (PDU) corresponding to the CG resource that has not undergone air interface transmission or has undergone air interface transmission and is stored in the HARQ process is flushed (flush), which causes Data packet loss and affects Quality of service (QoS) requirements.
Therefore, how to ensure the service QoS requirement when the HARQ process corresponding to the CG resource and the HARQ process corresponding to the DG resource collide is a technical problem that needs to be solved in the field.
In other embodiments of the present application, the communication system 100 may be adapted for use in an NR-U network.
In other words, the terminal device 110 or the network device 120 may be adapted to an NR-U network. NR operates in the unlicensed band.
The NR-U network includes, but is not limited to, the following operating scenarios:
scene A: a carrier aggregation scenario. That is, the primary cell (PCell) operates on the licensed spectrum, and the secondary cell (SCell) operates on the unlicensed spectrum in an aggregated manner through the carrier aggregation.
Scene B: a dual connectivity job scenario. That is, the PCell operates on a licensed spectrum, and the Primary Secondary Cell (PSCell) operates on an NR unlicensed spectrum.
Scene C: independent working scene. I.e. NR operates in unlicensed spectrum as an independent cell.
Scene D: NR single cell scenario. That is, the Uplink (UL) operates in the licensed spectrum and the Downlink (DL) operates in the unlicensed spectrum.
Scene E: in a dual connectivity working scenario, the PCell works in the NR licensed spectrum, and the PSCell works in the NR unlicensed spectrum.
For example, the operating Band (Band) of NR-U may be the 5GHz unlicensed spectrum and the 6GHz unlicensed spectrum. On unlicensed spectrum, the design of NR-U needs to guarantee fairness with other systems already operating on these unlicensed spectrum, such as WiFi and the like. For example, the impact on systems already deployed on unlicensed spectrum (such as WiFi) cannot exceed the impact between these systems.
Fairness coexistence between systems over unlicensed spectrum may be guaranteed through energy detection mechanisms, such as LBT mechanisms.
In a specific implementation, before a network device or a terminal device (transmission end) transmits data on an unlicensed spectrum, it needs to listen for a certain period of time according to a rule. If the sensed result indicates that the channel is in an idle state, the transmitting end may transmit data to the receiving end. If the interception result indicates that the channel is in an occupied state, the transmission end needs to back off for a period of time according to the specification and then continues to intercept the channel until the channel interception result is in an idle state, and data can not be transmitted to the receiving end.
Channel access may be performed through the following four channel access mechanisms (categories):
the direct transmission mechanism comprises:
the transmitting end (TX) can transmit quickly after a switching gap within a Channel Occupancy Time (COT). The Switching gap may refer to a transition time for receiving transmission data, for example, the Switching gap may not exceed 16 us.
LBT mechanism without random back-off (back-off):
the time for the terminal device to listen to the channel is determined, for example 25 us.
LBT mechanism for random back-off (contention window fixed):
in the LBT procedure, the transmitting side randomly selects a random value in the contention window to decide the time to listen to the channel.
LBT mechanism for random back-off (contention window is not fixed):
in the LBT procedure, the transmitting side randomly takes a random value in a contention window to decide the time for listening to the channel, and the contention window is variable.
As can be seen, for the terminal device, when the network device transmits data to the terminal device, it needs to be within a Maximum Channel Occupancy Time (MCOT) if the network device does not occupy the Channel. In other words, if the MCOT time is out, the terminal device does not receive the scheduling data from the network device to the terminal device.
For uplink transmission initiated by the terminal device, the following categories are included but not limited to:
a Scheduling Request (SR) for requesting uplink resources.
A Physical Random Access Channel (PRACH), in which a Random Access Channel (RACH) triggers the terminal device to send a message 1(msg1) to the network device.
A Physical Uplink Shared Channel (PUSCH) includes Uplink data transmission based on a CG resource and Uplink data transmission based on a DG resource.
Physical layer signaling, including acknowledgement/non-acknowledgement (ACK/NACK) and Channel State Information (CSI).
On an unlicensed frequency band, before transmitting SR, PRACH or PUSCH, a terminal device needs to listen to whether a channel is available by LBT, and if not, that is, LBT fails, the terminal device needs to wait until the next transmission opportunity to perform LBT again. If detecting the LBT failure, it needs to inform the MAC layer of the LBT failure information.
In NR-U, the terminal device may transmit data carried on CG resources in an automatic uplink transport (AUL) manner. For example, the network device may configure, for the terminal device, multiple HARQ processes available for CG resources, such as identifications (ids) of the multiple HARQ processes. The identification of the HARQ process may also be referred to as the process number of the HARQ process.
At this time, for each CG resource, the terminal device may select the HARQ process id to use by itself, and when the corresponding CG resource transmits data carried on the CG resource, may tell the network device the HARQ process id selected by itself.
Meanwhile, the terminal device may also perform uplink transmission based on dynamic scheduling.
For example, when the terminal device receives scheduling information for dynamically scheduling DG resources, and the scheduling information is a PDCCH scrambled by a C-RNTI, for a target HARQ process used by the DG resources, if a CG resource (including a CG resource used for retransmission or New transmission) is used in the target HARQ process, the terminal device considers that a New Data Indicator (NDI) is inverted, that is, the scheduling information is used for scheduling New transmission Data.
At this time, the terminal device starts or restarts a configuration grant timer (CG timer), and sends the scheduling information and the information of the target HARQ process (e.g., the process number of the target HARQ process) to the HARQ entity.
For each HARQ process included in the HARQ entity, if the scheduling information is new transmission scheduling information, the terminal device invokes a Multiplexing and assembly entity (Multiplexing and assembly entity) to generate a MAC PDU, sends new transmission data using a target HARQ process, and starts or restarts a CG timer. And if the scheduling information is retransmission scheduling information, the target HARQ process is used for sending retransmission data, and the CG timer is started or restarted.
In addition, the terminal device may also set the HARQ process id used by the DG resource to the HARQ process id used by the CG resource.
For example, the terminal device receives scheduling information for scheduling DG resources sent by the network device, and an HARQ process used by the DG resources is a target HARQ process, and if a CG resource and the DG resources are not overlapped in a time domain (for example, a resource scheduled by a PDCCH, the CG resource, and a resource indicated in a Random Access Response (RAR) are not overlapped), the terminal device may set the target HARQ process id as an HARQ process id used by the CG resource. And if the CG timer for the target HARQ process does not run, considering that the NDI is turned over, and sending the scheduling information and corresponding HARQ information (such as the HARQ process) to an HARQ entity.
However, since the network device does not determine which HARQ process the terminal device itself selects before receiving the CG resource, when the network device schedules a DG resource before receiving data transmitted on the CG resource, the network device assigns the identifier of the HARQ process already occupied by the CG resource to the DG resource.
That is, the target HARQ process used by the DG resource may already be occupied by the CG resource.
Based on the above analysis, it is possible that two grant HARQ processes collide regardless of IIoT or NR-U.
That is, when one resource is not transmitted or is not transmitted, a dynamically scheduled resource may be received or another resource may be available, and the HARQ process of the later received or available resource is the same as the HARQ process of the resource which is not transmitted.
For example, at time t1, the terminal device determines that CG resources, such as grant1, are available, and the corresponding HARQ process is HARQ process id 1. At time t2 (t2> t1), the terminal device receives a dynamically scheduled DG scheduled by the network, for example, grant2, and the HARQ process corresponding to the grant2 is also HARQ process id 1.
Assuming that a target HARQ process used by DG resources is occupied by CG resources, if the CG resources have been grouped or the grouped packet has been sent to a physical layer (PHY), once the DG resources arrive, a Media Access Control (MAC) Protocol Data Unit (PDU) corresponding to the CG resources which have not been subjected to air interface transmission or have been subjected to air interface transmission and are stored in the HARQ process is flushed (flush), which causes Data packet loss and affects Quality of service (QoS) requirements.
Similarly, assuming that the target HARQ process used by the CG resource is already occupied by the DG resource, if the DG resource has been packaged or the packaged packet has been sent to the PHY, once the CG timer runs, even if the priority of the CG resource is high, the terminal device cannot perform MAC PDU packaging on the CG resource, which causes a problem that a service that should be carried in the CG resource with high priority cannot be sent in time, resulting in a problem that the service QoS requirement cannot be guaranteed.
Therefore, when two grant HARQ processes conflict, how to guarantee the QoS requirement of the service is an urgent technical problem to be solved in the field.
The application provides a wireless communication method and device, which can ensure the service QoS requirement when two grant HARQ processes conflict.
Fig. 2 shows a schematic flow diagram of a method 200 of wireless communication according to an embodiment of the application, which method 200 may be performed interactively by a terminal device and a network device. The method 200 may be applicable to IIoT and/or NR-U communication networks. The terminal device shown in fig. 2 may be a terminal device as shown in fig. 1, and the network device shown in fig. 2 may be an access network device as shown in fig. 1.
As shown in fig. 2, the method 200 may include:
s210, the terminal device receives scheduling information for scheduling DG resources sent by the network device.
S220, when the target HARQ process used by the DG resource is configured with the CG resource occupation, the terminal device ignores the DG resource or does not package a Media Access Control (MAC) Protocol Data Unit (PDU) corresponding to the DG resource.
For example, when the terminal device receives scheduling information, the HARQ entity of the terminal device may identify a target HARQ process associated with the DG resource based on the scheduling information, and perform initial transmission/retransmission of data according to an indication of the scheduling information.
Further, under the condition that the target HARQ process used by the DG resource is occupied by the CG resource, the terminal device ignores the DG resource or does not package the MAC PDU corresponding to the DG resource. Correspondingly, the terminal equipment does not perform initial transmission/retransmission of data according to the indication of the scheduling information.
In other words, the terminal device can use the target HARQ process to preferentially transmit the data carried on the already packaged packet of resources without the situation that the packaged packet of data is lost. As an embodiment, the already grouped resources are the CG resources.
Based on the technical scheme, by neglecting the DG resources or not packing the MAC PDU corresponding to the DG resources, when the HARQ process corresponding to the CG resources and the HARQ process corresponding to the DG resources conflict, the data loaded on the CG resources can be preferentially sent, the data loaded on the packed resources can be preferentially ensured to be sent to a network side without loss, and further, the requirement of service QoS is ensured. Especially, the method can timely send the services in the CG resources with high priority, thereby ensuring the QoS requirements of the services.
For the purpose of facilitating understanding of the present application, CG resources and DC resources are described below.
The DC resources may include resources dynamically scheduled by the network device.
For example, the DC resource may include a resource scheduled by the network device through the PDCCH.
CG resources may include both Type1 and Type 2.
The CG Type1 may be configured by Radio Resource Control (RRC), for example, the terminal device may store a Resource indicated by an RRC-configured uplink grant (RRC-configured uplink grant) in a configured grant configuration (configured grant configuration IE) as an uplink CG Resource.
The CG Type2 may activate/deactivate the uplink CG resource according to a Physical Downlink Control Channel (PDCCH) instruction scrambled by a Configured scheduled radio network temporary identity (CS-RNTI).
For the same serving cell, a CG resource of Type1 or Type2 may be configured for a Media Access Control (MAC) entity through RRC signaling.
As shown in fig. 2, the method 200 may further include:
and the terminal equipment sends the data loaded on the CG resources, wherein the data loaded on the CG resources comprises the information of the target HARQ process.
In other words, the network device sends scheduling information for scheduling the dynamically granted DG resources to the terminal device; and the network equipment receives the data loaded on the CG resources, wherein the data loaded on the CG resources comprises the information of the target HARQ process.
In S220, as an example, if the target HARQ process is already occupied by the configured grant CG resource and meets the first preset condition, the terminal device may ignore the DG resource or not package the MAC PDU corresponding to the DG resource.
Of course, if the target HARQ process used by the DG resource is already occupied by the CG resource, the terminal device may also directly ignore the DG resource or not package the MAC PDU corresponding to the DG resource, which is not limited in this application.
In some embodiments of the present application, the first preset condition comprises at least one of:
the MAC PDU corresponding to the CG resource is packaged;
the MAC PDU corresponding to the CG resource is already delivered to a physical layer;
the MAC PDU corresponding to the CG resource is in a non-transmission state;
the MAC PDU corresponding to the CG resource is in an unfinished transmission state;
the MAC PDU corresponding to the CG resource is in a transmission state;
the CG resource priority is above a first threshold;
the data carried on the CG resources is above a third threshold;
the priority of the MAC control element CE carried on the CG resource is higher than a fourth threshold;
the DG resources are used for transmitting newly transmitted data or retransmitted data;
the scheduling information is used for scheduling newly transmitted data or retransmitted data;
the scheduling information is a physical downlink control channel PDCCH scrambled by a cell radio network temporary identifier C-RNTI;
the size of the transmission block TBS and the size of the CG which are indicated by the scheduling information are different;
the receiving time of the scheduling information does not meet the processing time delay of the previous CG transmission; and
and the time from the moment corresponding to the CG resource to the moment corresponding to the scheduling information is less than a second threshold.
In some embodiments of the present application, the first threshold comprises a priority of the DG resource.
It should be understood that the first threshold may be a specific value, which may be a predetermined value, a value configured by the network device, a value selected by the terminal device, or a value determined or selected by the terminal device in a predefined plurality of values or a plurality of values configured by the network device, and this application is not limited thereto.
For example, the first threshold may be a value randomly selected by the terminal device among a plurality of values or selected based on a preset criterion.
In some embodiments of the present application, the third threshold comprises a priority of the data carried on the DG.
In some embodiments of the present application, the fourth threshold comprises a priority of a MAC CE carried on the DG.
It should be understood that the third threshold and/or the fourth threshold may be a specific value, which may be a predetermined value, a value configured by the network device, a value selected by the terminal device, or a value determined or selected by the terminal device in a predefined plurality of values or a plurality of values configured by the network device, and this application is not limited thereto.
For example, the third threshold and/or the fourth threshold may be a value randomly selected by the terminal device among a plurality of values or selected based on a preset criterion.
In some embodiments of the present application, the second threshold is a preconfigured threshold, or the second threshold is a network device configured threshold.
For example, the second threshold may be a specific value, which may be a predetermined value, a value configured by the network device, a value selected by the terminal device, or a value determined or selected by the terminal device in a predefined plurality of values or a plurality of values configured by the network device, and this is not limited in this application.
For example, the second threshold may be a value randomly selected by the terminal device among a plurality of values or selected based on a preset criterion.
In some embodiments of the present application, the method 200 may further comprise:
if the scheduling information is received in the target time period, determining that the receiving time of the scheduling information does not meet the processing time delay of the previous CG transmission;
wherein the target time period comprises at least one of the following time periods:
a time period from the starting time of sending a Physical Uplink Shared Channel (PUSCH) by the terminal equipment to the starting time of receiving a Physical Downlink Control Channel (PDCCH) by the terminal equipment; a time period from the end time of sending the Physical Uplink Shared Channel (PUSCH) by the terminal equipment to the end time of receiving the PDCCH by the terminal equipment; a time period from the end time of the terminal equipment transmitting uplink control information UCI in the PUSCH to the end time of the terminal equipment receiving a demodulation reference signal DMRS corresponding to the PDCCH; a time period from the end time of the terminal equipment sending uplink control information UCI in the PUSCH to the end time of the terminal equipment receiving the PDSCH; and the terminal equipment transmits the time period from the ending time of the uplink control information UCI in the PUSCH to the starting time of the terminal equipment for receiving the PDSCH.
In some embodiments of the present application, the CG resources correspond to a time that includes at least one of:
the terminal equipment sends the end time of a Physical Uplink Shared Channel (PUSCH);
the terminal equipment sends the ending time of uplink control information UCI in the PUSCH;
the terminal equipment sends the ending time of at least one column of DMRS corresponding to the PUSCH; and
and the terminal equipment transmits the starting time of the PUSCH.
In some embodiments of the present application, the time corresponding to the scheduling information includes at least one of the following times:
a starting time domain symbol position of the scheduling information;
an ending time domain symbol position of the scheduling information;
the terminal equipment receives the starting time of the scheduling information; and
and the terminal equipment receives the end time of the scheduling information.
In some embodiments of the present application, the second threshold comprises at least one of:
demodulation time of uplink control information UCI in a physical uplink shared channel PUSCH;
processing time of PUSCH; and
and demodulation time of a PUSCH demodulation reference signal (DMRS).
In some embodiments of the present application, the second threshold is a preconfigured threshold, or the second threshold is a network device configured threshold.
In some embodiments of the present application, the method is applicable to industrial internet IIoT and/or new air interface-unlicensed communication networks.
The method 200 is illustrated below with reference to specific embodiments.
The method comprises the steps that a terminal device receives CG resources configured by a network device through RRC, wherein a CG index (index) corresponding to the CG resources is 1, and HARQ processes configured for the CG resources are HARQ process id1 and id 2.
At time t1, the terminal device determines that the configured CG resource is available, and at this time, the selected or determined resource of CG index1, i.e. grant1, has a corresponding HARQ process id of 1 (i.e. the first HARQ process). The end device groups MAC PDU1 for the CG resource and delivers the MAC PDU1 to the PHY.
Note that, the MAC PDU1 is transmitted to the network side over the air PUSCH at time t3 (t3> t 1).
At time t2 (t2> t1), the terminal device receives the DG resource of the newly transmitted data scheduled by the PDCCH scrambled by the C-RNTI, which corresponds to grant2, and the HARQ process indicated by the grant is HARQ process id 1.
It should be noted that the transmission time of the grant2 on the air interface is t4, where t4< t3, or t4> t3, or t4 and t3 overlap in time domain.
Since the target HARQ process is already occupied by the CG resource (the target process is a conflicting HARQ process, that is, HARQ corresponding to the case where the HARQ processes of the CG resource and the DG resource conflict), if the HARQ processes of the CG resource and the DG resource are both HARQ process id1, when the first preset condition is satisfied, the terminal device ignores the DG resource, or does not package the MAC PDU of the target HARQ process to the DG resource.
For example, at this time, since the MAC PDU1 corresponding to grant1 is already packaged and is not transmitted over the air, at this time, the terminal device ignores or discards the grant 2. That is, the terminal device does not group MAC PDU2 into grant2 conflicting with HARQ process.
Otherwise, the terminal device may operate according to the existing protocol.
That is, the terminal device groups the MAC PDU into the DG resources and stores the grouped MAC PDU into the target HARQ process. (for example, the terminal device groups grant2 corresponding to the DG resource, and stores the grouped MAC PDU2 in the buffer pool of HARQ process id 1).
For example, if the MAC PDU1 corresponding to grant1 is already transmitted over the air interface or completes one PUSCH transmission, the terminal device submits grant2 and HARQ information (e.g., HARQ process id1) to the corresponding HARQ process, and groups the MAC PDU2 for grant 2.
It should be understood that the first preset condition is only an exemplary condition, and those skilled in the art can set different conditions according to actual requirements, and the inventive concept thereof shall belong to the inventive concept protected by the present application.
Fig. 3 shows a schematic flow chart of a method 300 of wireless communication according to an embodiment of the application, which method 300 may be performed interactively by a terminal device and a network device. The method 300 may be applicable to IIoT and/or NR-U communication networks. The terminal device shown in fig. 3 may be a terminal device as shown in fig. 1, and the network device shown in fig. 3 may be an access network device as shown in fig. 1.
As shown in fig. 3, the method 300 may include:
s310, the terminal device receives scheduling information for scheduling the dynamic grant DG resource sent by the network device.
S320, the terminal equipment determines to configure the authorized CG resources.
S320, under the condition that the target HARQ process used by the CG resource is occupied by the DG resource, the terminal equipment replaces the MAC PDU corresponding to the DG resource by the MAC PDU corresponding to the CG resource.
For example, when the terminal device receives scheduling information, the HARQ entity of the terminal device may identify a target HARQ process associated with the DG resource based on the scheduling information, and perform initial transmission/retransmission of data according to an indication of the scheduling information.
Further, if the target HARQ process used by the CG resource is already occupied by the DG resource, the terminal device replaces the MAC PDU corresponding to the DG resource with the MAC PDU corresponding to the CG resource.
In other words, the terminal device may preferentially transmit the data carried on the CG resource using the target HARQ process.
Based on the technical scheme, the MAC PDU corresponding to the CG resource is used for replacing the MAC PDU corresponding to the DG resource, and when the HARQ process corresponding to the CG resource and the HARQ process corresponding to the DG resource conflict, data borne on the CG resource can be sent preferentially, so that the service QoS requirement is ensured. Especially, the method can timely send the services in the CG resources with high priority, thereby ensuring the QoS requirements of the services.
In some embodiments of the present application, the method 300 may further comprise at least one of:
submitting the CG resources to the target HARQ process;
generating MAC PDU corresponding to the CG resource for the target HARQ process;
starting or restarting a CG timer of the CG resource;
confirming that the new data indicates NDI flips.
In S320, as an example, if the target HARQ process is already occupied by the DG resource and meets a second preset condition, replacing the MAC PDU corresponding to the DG resource with the MAC PDU corresponding to the CG resource.
In other words, the network device sends scheduling information for scheduling the dynamically granted DG resources to the terminal device; and the network equipment receives the data loaded on the CG resources, wherein the data loaded on the CG resources comprises the information of the target HARQ process.
In some embodiments of the present application, the second preset condition comprises at least one of the following conditions:
the priority of the CG resource is higher than a first threshold;
the data carried on the CG resources is above a third threshold;
the priority of the MAC control element CE carried on the CG resource is higher than a fourth threshold;
a CG timer for the CG resource is running;
the authorization for triggering the CG timer of the CG resource to start or restart is DG; and
the CG timer used for triggering the CG resource is started or restarted and authorized to be a physical downlink control channel PDCCH scrambled by using a cell radio network temporary identifier C-RNTI;
the time corresponding to the CG resource to the receiving time of the scheduling information meets the processing time delay of one resource transmission;
the time from the moment corresponding to the CG resource to the moment corresponding to the scheduling information is greater than or equal to a second threshold; and
the DG resource has been transmitted or completed with one transmission.
In some embodiments of the present application, the first threshold comprises a priority of the DG resource.
It should be understood that the first threshold may be a specific value, which may be a predetermined value, a value configured by the network device, a value selected by the terminal device, or a value determined or selected by the terminal device in a predefined plurality of values or a plurality of values configured by the network device, and this application is not limited thereto.
For example, the first threshold may be a value randomly selected by the terminal device among a plurality of values or selected based on a preset criterion.
In some embodiments of the present application, the third threshold comprises a priority of data carried on the DG resources, and/or the fourth threshold comprises a priority of MAC CE carried on the DG resources.
It should be understood that the third threshold and/or the fourth threshold may be a specific value, which may be a predefined value, a value configured by the network device, a value selected by the terminal device, or a value determined or selected by the terminal device in multiple predefined values or multiple values configured by the network device, and this application is not limited to this specific value.
For example, the third threshold and/or the fourth threshold may be a value randomly selected by the terminal device among a plurality of values or selected based on a preset criterion.
In some embodiments of the present application, the second threshold is a preconfigured threshold, or the second threshold is a network device configured threshold.
For example, the second threshold may be a specific value, which may be a predetermined value, a value configured by the network device, a value selected by the terminal device, or a value determined or selected by the terminal device in a predefined plurality of values or a plurality of values configured by the network device, and this is not limited in this application.
For example, the second threshold may be a value randomly selected by the terminal device among a plurality of values or selected based on a preset criterion.
In some embodiments of the present application, the method 300 may further comprise:
and sending the data loaded on the CG resources, wherein the data loaded on the CG resources comprises the information of the target HARQ process.
In some embodiments of the present application, the method is applicable to industrial internet IIoT and/or new air interface-unlicensed communication networks.
The method 300 is illustrated below with reference to specific embodiments.
The method comprises the steps that a terminal device receives CG resources configured by a network device through RRC, wherein a CG index (index) corresponding to the CG resources is 1, and HARQ processes configured for the CG resources are HARQ process id1 and id 2.
At time t1, the terminal device receives the DG resource scheduled by the PDCCH scrambled by the C-RNTI by the network device, and the HARQ process indicated by the terminal device is HARQ process id1 corresponding to grant 1. The end device packages MAC PDU1 for the DG resources and delivers the MAC PDU1 to the physical layer (PHY).
Note that the transmission time of the grant1 on the air interface is t3, where t3> t 1.
At time t2 (t2> t1), the terminal device determines that the configured CG resources are available, and at this time, the resource of the selected or determined CG index1, i.e. grant2, has a corresponding HARQ process id of 1.
It should be noted that the grant2 is transmitted to the network side over the air interface at time t4 (t4> t2), where t4< t3, or t4> t3, or time domains of t4 and t3 overlap.
Since the target HARQ process is already occupied by the DG resource (the target process is a conflicting HARQ process, that is, HARQ corresponding to the CG resource and the DG resource when the HARQ processes conflict), if the HARQ processes of the CG resource and the DG resource are both HARQ process id1, when the second preset condition is satisfied, the terminal device replaces the MAC PDU corresponding to the DG resource with the MAC PDU corresponding to the CG resource.
For example, at this time, because the MAC PDU1 corresponding to grant1 is not transmitted over the air interface and the CG timer is running, if the priority of the CG resource is higher than grant1, the terminal device submits the grant corresponding to the CG resource to the HARQ process, considers the NDI to be inverted, generates a MAC PDU for the CG and puts the MAC PDU into the HARQ process id 1.
For another example, at this time, since the MAC PDU1 corresponding to grant1 completes one transmission at the air interface and the CG timer is running, if the priority of the CG resource is higher than grant1, the terminal device submits the grant corresponding to the CG resource to the HARQ process, considers the NDI to be inverted, generates the MAC PDU for the CG and puts the MAC PDU into the HARQ process id 1.
Otherwise, the terminal device may operate according to the existing protocol.
That is, the terminal device does not submit grant2 to the HARQ process, does not consider NDI to be flipped, and does not put MAC PDUs of grant2 into HARQ process id 1.
The preferred embodiments of the present application have been described in detail with reference to the accompanying drawings, however, the present application is not limited to the details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications are all within the protection scope of the present application.
For example, the various features described in the foregoing detailed description may be combined in any suitable manner without contradiction, and various combinations that may be possible are not described in this application in order to avoid unnecessary repetition.
For example, various embodiments of the present application may be arbitrarily combined with each other, and the same should be considered as the disclosure of the present application as long as the concept of the present application is not violated.
It should be understood that, in the various method embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Method embodiments of the present application are described in detail above in conjunction with fig. 2, and apparatus embodiments of the present application are described in detail below in conjunction with fig. 4-6.
Fig. 3 is a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
The terminal device 300 shown in fig. 3 may correspond to a corresponding subject matter in performing the method 200 of the embodiment of the present application.
As shown in fig. 3, the terminal device 300 may include:
a communication unit 410, configured to receive scheduling information sent by a network device for scheduling a dynamically granted DG resource.
A processing unit 420, configured to ignore the DG resource or not package the MAC protocol data unit PDU corresponding to the DG resource when a target HARQ process using the DG resource is occupied by a configured grant CG resource.
In some embodiments of the present application, the communication unit 410 is further configured to:
and sending the data loaded on the CG resources, wherein the data loaded on the CG resources comprises the information of the target HARQ process.
In some embodiments of the present application, the processing unit 420 is specifically configured to:
and if the target HARQ process is occupied by the configured authorized CG resources and meets a first preset condition, ignoring the DG resources or not packaging the MAC PDU corresponding to the DG resources.
In some embodiments of the present application, the first preset condition comprises at least one of:
the MAC PDU corresponding to the CG resource is packaged;
the MAC PDU corresponding to the CG resource is already delivered to a physical layer;
the MAC PDU corresponding to the CG resource is in a non-transmission state;
the MAC PDU corresponding to the CG resource is in an unfinished transmission state;
the MAC PDU corresponding to the CG resource is in a transmission state;
the CG resource priority is above a first threshold;
the data carried on the CG resources is above a third threshold;
the priority of the MAC control element CE carried on the CG resource is higher than a fourth threshold;
the DG resources are used for transmitting newly transmitted data or retransmitted data;
the scheduling information is used for scheduling newly transmitted data or retransmitted data;
the scheduling information is a physical downlink control channel PDCCH scrambled by a cell radio network temporary identifier C-RNTI;
the size of the transmission block TBS and the size of the CG which are indicated by the scheduling information are different;
the receiving time of the scheduling information does not meet the processing time delay of the previous CG transmission; and
and the time from the moment corresponding to the CG resource to the moment corresponding to the scheduling information is less than a second threshold.
In some embodiments of the present application, the first threshold comprises a priority of the DG resource.
In some embodiments of the present application, the third threshold comprises a priority of data carried on the DG resources, and/or the fourth threshold comprises a priority of MAC CE carried on the DG resources.
In some embodiments of the present application, the processing unit 420 is further configured to:
if the scheduling information is received in the target time period, determining that the receiving time of the scheduling information does not meet the processing time delay of the previous CG transmission;
wherein the target time period comprises at least one of the following time periods:
a time period from the starting time of sending a Physical Uplink Shared Channel (PUSCH) by the terminal equipment to the starting time of receiving a Physical Downlink Control Channel (PDCCH) by the terminal equipment; a time period from the end time of sending the Physical Uplink Shared Channel (PUSCH) by the terminal equipment to the end time of receiving the PDCCH by the terminal equipment; a time period from the end time of the terminal equipment transmitting uplink control information UCI in the PUSCH to the end time of the terminal equipment receiving a demodulation reference signal DMRS corresponding to the PDCCH; a time period from the end time of the terminal equipment sending uplink control information UCI in the PUSCH to the end time of the terminal equipment receiving the PDSCH; and the terminal equipment transmits the time period from the ending time of the uplink control information UCI in the PUSCH to the starting time of the terminal equipment for receiving the PDSCH.
In some embodiments of the present application, the CG resources correspond to a time that includes at least one of:
the terminal equipment sends the end time of a Physical Uplink Shared Channel (PUSCH);
the terminal equipment sends the ending time of uplink control information UCI in the PUSCH;
the terminal equipment sends the ending time of at least one column of DMRS corresponding to the PUSCH; and
and the terminal equipment transmits the starting time of the PUSCH.
In some embodiments of the present application, the time corresponding to the scheduling information includes at least one of the following times:
a starting time domain symbol position of the scheduling information;
an ending time domain symbol position of the scheduling information;
the terminal equipment receives the starting time of the scheduling information; and
and the terminal equipment receives the end time of the scheduling information.
In some embodiments of the present application, the second threshold comprises at least one of:
demodulation time of uplink control information UCI in a physical uplink shared channel PUSCH;
processing time of PUSCH; and
and demodulation time of a PUSCH demodulation reference signal (DMRS).
In some embodiments of the present application, the second threshold is a preconfigured threshold, or the second threshold is a network device configured threshold.
In some embodiments of the present application, the terminal device is suitable for an industrial internet IIoT and/or a new air interface-unlicensed communication network.
The terminal device 300 shown in fig. 3 may correspond to a corresponding subject matter in performing the method 300 of the present embodiment.
As shown in fig. 3, the terminal device 300 may include:
a communication unit 410, configured to receive scheduling information sent by a network device for scheduling a dynamically granted DG resource;
a processing unit 420 for determining to configure an authorized CG resource;
in case that a target hybrid automatic repeat request, HARQ, process used by the CG resource is already occupied by the DG resource, the processing unit 420 is further configured to:
and replacing the MAC PDU corresponding to the DG resource by the media access control MAC protocol data unit PDU corresponding to the CG resource.
In some embodiments of the present application, the processing unit 420 is further configured to perform at least one of the following actions:
submitting the CG resources to the target HARQ process;
generating MAC PDU corresponding to the CG resource for the target HARQ process;
starting or restarting a CG timer of the CG resource;
confirming that the new data indicates NDI flips.
In some embodiments of the present application, the processing unit 420 is specifically configured to:
and if the target HARQ process is occupied by the DG resources and meets a second preset condition, replacing the MAC PDU corresponding to the DG resources by the MAC PDU corresponding to the CG resources.
In some embodiments of the present application, the second preset condition comprises at least one of the following conditions:
the priority of the CG resource is higher than a first threshold;
the data carried on the CG resources is above a third threshold;
the priority of the MAC control element CE carried on the CG resource is higher than a fourth threshold;
a CG timer for the CG resource is running;
the authorization for triggering the CG timer of the CG resource to start or restart is DG;
the CG timer used for triggering the CG resource is started or restarted and authorized to be a physical downlink control channel PDCCH scrambled by using a cell radio network temporary identifier C-RNTI;
the time corresponding to the CG resource to the receiving time of the scheduling information meets the processing time delay of one resource transmission;
the time from the moment corresponding to the CG resource to the moment corresponding to the scheduling information is greater than or equal to a second threshold; and
the DG resource has been transmitted or completed with one transmission.
In some embodiments of the present application, the first threshold comprises a priority of the DG resource.
In some embodiments of the present application, the third threshold comprises a priority of data carried on the DG resources, and/or the fourth threshold comprises a priority of MAC CE carried on the DG resources.
In some embodiments of the present application, the communication unit 410 is further configured to:
and sending the data loaded on the CG resources, wherein the data loaded on the CG resources comprises the information of the target HARQ process.
In some embodiments of the present application, the terminal device is suitable for an industrial internet IIoT and/or a new air interface-unlicensed communication network.
It is to be understood that apparatus embodiments and method embodiments may correspond to one another and that similar descriptions may refer to method embodiments. Specifically, the terminal device 300 shown in fig. 3 may correspond to a corresponding main body for executing the methods 200 and 300 in the embodiments of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 300 are respectively for implementing corresponding flows in the methods in fig. 2 and fig. 3, and are not described herein again for brevity.
The communication device of the embodiment of the present application is described above from the perspective of the functional module.
It should be understood that the functional modules may be implemented by hardware, by instructions in software, or by a combination of hardware and software modules.
Specifically, the steps of the method embodiments in the present application may be implemented by integrated logic circuits of hardware in a processor and/or instructions in the form of software, and the steps of the method disclosed in conjunction with the embodiments in the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
Alternatively, the software modules may be located in random access memory, flash memory, read only memory, programmable read only memory, electrically erasable programmable memory, registers, and the like, as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps in the above method embodiments in combination with hardware thereof.
For example, the processing unit and the communication unit referred to above may be implemented by a processor and a transceiver, respectively.
Fig. 5 is a schematic structural diagram of a communication device 500 according to an embodiment of the present application.
Referring to fig. 5, the communication device 500 may include a processor 510.
From which processor 510 may invoke and execute computer programs to implement the methods of the embodiments of the present application.
With continued reference to fig. 5, the communication device 500 may also include a memory 520.
The memory 520 may be used for storing indication information, and may also be used for storing codes, instructions, etc. executed by the processor 510. From the memory 520, the processor 510 can call and run a computer program to implement the method in the embodiment of the present application. The memory 520 may be a separate device from the processor 510 or may be integrated into the processor 510.
With continued reference to fig. 5, the communication device 500 may also include a transceiver 530.
The processor 510 may control the transceiver 530 to communicate with other devices, and in particular, may transmit information or data to the other devices or receive information or data transmitted by the other devices. The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include one or more antennas.
It should be understood that the various components in the communication device 500 are connected by a bus system that includes a power bus, a control bus, and a status signal bus in addition to a data bus.
It should also be understood that the communication device 500 may be a terminal device in the embodiment of the present application, and the communication device 500 may implement a corresponding process implemented by the terminal device in each method in the embodiment of the present application, that is, the communication device 500 in the embodiment of the present application may correspond to the terminal device 300 in the embodiment of the present application, and may correspond to a corresponding main body in executing the method 200 in the embodiment of the present application, and for brevity, no further description is provided here. Similarly, the communication device 500 may be a network device of the embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the network device in the methods of the embodiments of the present application. That is to say, the communication device 500 in the embodiment of the present application may correspond to the network device 500 in the embodiment of the present application, and may correspond to a corresponding main body in executing the method 200 according to the embodiment of the present application, and for brevity, no further description is provided here.
In addition, the embodiment of the application also provides a chip.
For example, the chip may be an integrated circuit chip having signal processing capabilities and capable of implementing or executing the methods, steps and logic blocks disclosed in the embodiments of the present application. The chip may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc. Alternatively, the chip may be applied to various communication devices, so that the communication device mounted with the chip can execute the methods, steps and logic blocks disclosed in the embodiments of the present application.
Fig. 6 is a schematic structural diagram of a chip 600 according to an embodiment of the present application.
Referring to fig. 6, the chip 600 includes a processor 610.
From which processor 610 may invoke and execute a computer program to implement the methods of the embodiments of the present application.
With continued reference to fig. 6, the chip 600 may further include a memory 620.
From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application. The memory 620 may be used to store instructions and codes, instructions, etc. that may be executed by the processor 610. The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.
With continued reference to fig. 6, the chip 600 may further include an input interface 630.
The processor 610 may control the input interface 630 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.
With continued reference to fig. 6, the chip 600 may further include an output interface 640.
The processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.
It should be understood that the chip 600 may be applied to a network device in this embodiment, and the chip may implement a corresponding process implemented by the network device in each method in this embodiment, and may also implement a corresponding process implemented by a terminal device in each method in this embodiment, which is not described herein again for brevity.
It will also be appreciated that the various components in the chip 600 are connected by a bus system that includes a power bus, a control bus, and a status signal bus in addition to a data bus.
The processor may include, but is not limited to:
general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like.
The processor may be configured to implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, eprom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
The memory includes, but is not limited to:
volatile memory and/or non-volatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DR RAM).
It should be noted that the memory described herein is intended to comprise these and any other suitable types of memory.
The embodiment of the application also provides a computer readable storage medium for storing the computer program. The computer readable storage medium stores one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the methods of the illustrated embodiments of methods 200 or 300.
Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.
Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.
The embodiment of the application also provides a computer program product comprising the computer program.
Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.
Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.
The embodiment of the application also provides a computer program. The computer program, when executed by a computer, enables the computer to perform the methods of the embodiments illustrated by methods 200 or 300.
Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.
In addition, an embodiment of the present application further provides a communication system, where the communication system may include the terminal device and the network device mentioned above to form the communication system 100 shown in fig. 1, and details are not described herein for brevity. It should be noted that the term "system" and the like herein may also be referred to as "network management architecture" or "network system" and the like.
It is also to be understood that the terminology used in the embodiments of the present application and the appended claims is for the purpose of describing particular embodiments only, and is not intended to be limiting of the embodiments of the present application.
For example, as used in the examples of this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.
If implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways.
For example, the division of a unit or a module or a component in the above-described device embodiments is only one logical function division, and there may be other divisions in actual implementation, for example, a plurality of units or modules or components may be combined or may be integrated into another system, or some units or modules or components may be omitted, or not executed.
Also for example, the units/modules/components described above as separate/display components may or may not be physically separate, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the units/modules/components can be selected according to actual needs to achieve the purposes of the embodiments of the present application.
Finally, it should be noted that the above shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The above description is only a specific implementation of the embodiments of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the embodiments of the present application, and all the changes or substitutions should be covered by the scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.
Claims (52)
- A method of wireless communication, comprising:receiving scheduling information which is sent by network equipment and used for scheduling dynamic grant DG resources;and under the condition that a target hybrid automatic repeat request (HARQ) process used by the DG resources is occupied by configured authorized CG resources, ignoring the DG resources or not packaging a Media Access Control (MAC) Protocol Data Unit (PDU) corresponding to the DG resources.
- The method of claim 1, further comprising:and sending the data loaded on the CG resources, wherein the data loaded on the CG resources comprises the information of the target HARQ process.
- The method of claim 1 or 2, wherein said ignoring the DG resource or not packing the medium access control MAC protocol data unit PDU corresponding to the DG resource comprises:and if the target HARQ process is occupied by the configured authorized CG resources and meets a first preset condition, ignoring the DG resources or not packaging the MAC PDU corresponding to the DG resources.
- The method according to claim 3, characterized in that said first preset condition comprises at least one of the following:the MAC PDU corresponding to the CG resource is packaged;the MAC PDU corresponding to the CG resource is in a non-transmission state;the CG resource priority is above a first threshold;the scheduling information is a physical downlink control channel PDCCH scrambled by a cell radio network temporary identifier C-RNTI; andand the time from the moment corresponding to the CG resource to the moment corresponding to the scheduling information is less than a second threshold.
- The method of claim 4, wherein the first threshold comprises a priority of the DG resources.
- The method of claim 4, wherein the CG resource corresponds to a time that includes at least one of:the terminal equipment sends the end time of a Physical Uplink Shared Channel (PUSCH);the terminal equipment sends the ending time of uplink control information UCI in the PUSCH;the terminal equipment sends the ending time of at least one column of DMRS corresponding to the PUSCH; andand the terminal equipment transmits the starting time of the PUSCH.
- The method of claim 4, wherein the time corresponding to the scheduling information comprises at least one of the following times:a starting time domain symbol position of the scheduling information;an ending time domain symbol position of the scheduling information;the terminal equipment receives the starting time of the scheduling information; andand the terminal equipment receives the end time of the scheduling information.
- The method of claim 4, wherein the second threshold comprises at least one of:demodulation time of uplink control information UCI in a physical uplink shared channel PUSCH;processing time of PUSCH; andand demodulation time of a PUSCH demodulation reference signal (DMRS).
- The method of claim 4, wherein the second threshold is a preconfigured threshold or the second threshold is a network device configured threshold.
- The method according to any one of claims 4 to 9, characterized in that said first preset conditions further comprise at least one of:the MAC PDU corresponding to the CG resource is already delivered to a physical layer;the MAC PDU corresponding to the CG resource is in an unfinished transmission state;the MAC PDU corresponding to the CG resource is in a transmission state;the data carried on the CG resources is above a third threshold;the priority of the MAC control element CE carried on the CG resource is higher than a fourth threshold;the DG resources are used for transmitting newly transmitted data or retransmitted data;the scheduling information is used for scheduling newly transmitted data or retransmitted data;the size of the transmission block TBS and the size of the CG which are indicated by the scheduling information are different; andand the receiving time of the scheduling information does not meet the processing time delay of the previous CG transmission.
- The method of claim 10, wherein the third threshold comprises a priority of data carried on the DG resources, and/or wherein the fourth threshold comprises a priority of MAC CE carried on the DG resources.
- The method of claim 10, further comprising:if the scheduling information is received in the target time period, determining that the receiving time of the scheduling information does not meet the processing time delay of the previous CG transmission;wherein the target time period comprises at least one of the following time periods:a time period from the starting time of sending a Physical Uplink Shared Channel (PUSCH) by the terminal equipment to the starting time of receiving a Physical Downlink Control Channel (PDCCH) by the terminal equipment; a time period from the end time of sending the Physical Uplink Shared Channel (PUSCH) by the terminal equipment to the end time of receiving the PDCCH by the terminal equipment; a time period from the end time of the terminal equipment transmitting uplink control information UCI in the PUSCH to the end time of the terminal equipment receiving a demodulation reference signal DMRS corresponding to the PDCCH; a time period from the end time of the terminal equipment sending uplink control information UCI in the PUSCH to the end time of the terminal equipment receiving the PDSCH; and the terminal equipment transmits the time period from the ending time of the uplink control information UCI in the PUSCH to the starting time of the terminal equipment for receiving the PDSCH.
- The method according to any of claims 1 to 12, wherein the method is applicable to industrial internet IIoT and/or new air interface-unlicensed communication networks.
- A method of wireless communication, comprising:receiving scheduling information which is sent by network equipment and used for scheduling dynamic grant DG resources;determining to configure an authorized CG resource;and replacing the MAC PDU corresponding to the DG resource by the media access control MAC protocol data unit PDU corresponding to the CG resource under the condition that a target hybrid automatic repeat request (HARQ) process used by the CG resource is occupied by the DG resource.
- The method of claim 14, further comprising at least one of:submitting the CG resources to the target HARQ process;generating MAC PDU corresponding to the CG resource for the target HARQ process;starting or restarting a CG timer of the CG resource;confirming that the new data indicates NDI flips.
- The method of claim 14 or 15, wherein the replacing the MAC PDU corresponding to the DG resource with the MAC PDU corresponding to the CG resource if the target HARQ process is already occupied by the DG resource comprises:and if the target HARQ process is occupied by the DG resources and meets a second preset condition, replacing the MAC PDU corresponding to the DG resources by the MAC PDU corresponding to the CG resources.
- The method according to claim 16, characterized in that said second preset condition comprises at least one of the following conditions:the priority of the CG resource is higher than a first threshold;the data carried on the CG resources is above a third threshold;the priority of the MAC control element CE carried on the CG resource is higher than a fourth threshold;a CG timer for the CG resource is running;the authorization for triggering the CG timer of the CG resource to start or restart is DG;the CG timer used for triggering the CG resource is started or restarted and authorized to be a physical downlink control channel PDCCH scrambled by using a cell radio network temporary identifier C-RNTI;the time corresponding to the CG resource to the receiving time of the scheduling information meets the processing time delay of one resource transmission;the time from the moment corresponding to the CG resource to the moment corresponding to the scheduling information is greater than or equal to a second threshold; andthe DG resource has been transmitted or completed with one transmission.
- The method of claim 17, wherein the first threshold comprises a priority of the DG resources.
- The method of claim 17, wherein the third threshold comprises a priority of data carried on the DG resources, and/or wherein the fourth threshold comprises a priority of MAC CE carried on the DG resources.
- The method according to any one of claims 14 to 19, further comprising:and sending the data loaded on the CG resources, wherein the data loaded on the CG resources comprises the information of the target HARQ process.
- The method according to any of claims 14 to 20, wherein the method is applicable to industrial internet IIoT and/or new air interface-unlicensed communication networks.
- A terminal device, comprising:the communication unit is used for receiving scheduling information which is sent by network equipment and used for scheduling the dynamic grant DG resources;and the processing unit is used for neglecting the DG resources or not packaging the media access control MAC protocol data unit PDU corresponding to the DG resources under the condition that a target hybrid automatic repeat request (HARQ) process used by the DG resources is occupied by the configured authorized CG resources.
- The terminal device of claim 22, wherein the communication unit is further configured to:and sending the data loaded on the CG resources, wherein the data loaded on the CG resources comprises the information of the target HARQ process.
- The terminal device according to claim 22 or 23, wherein the processing unit is specifically configured to:and if the target HARQ process is occupied by the configured authorized CG resources and meets a first preset condition, ignoring the DG resources or not packaging the MAC PDU corresponding to the DG resources.
- The terminal device according to claim 24, wherein the first preset condition comprises at least one of:the MAC PDU corresponding to the CG resource is packaged;the MAC PDU corresponding to the CG resource is in a non-transmission state;the CG resource priority is above a first threshold;the scheduling information is a physical downlink control channel PDCCH scrambled by a cell radio network temporary identifier C-RNTI; andand the time from the moment corresponding to the CG resource to the moment corresponding to the scheduling information is less than a second threshold.
- The terminal device of claim 25, wherein the first threshold comprises a priority of the DG resources.
- The terminal device of claim 25, wherein the CG resource corresponds to a time comprising at least one of:the terminal equipment sends the end time of a Physical Uplink Shared Channel (PUSCH);the terminal equipment sends the ending time of uplink control information UCI in the PUSCH;the terminal equipment sends the ending time of at least one column of DMRS corresponding to the PUSCH; andand the terminal equipment transmits the starting time of the PUSCH.
- The terminal device of claim 25, wherein the time corresponding to the scheduling information comprises at least one of the following times:a starting time domain symbol position of the scheduling information;an ending time domain symbol position of the scheduling information;the terminal equipment receives the starting time of the scheduling information; andand the terminal equipment receives the end time of the scheduling information.
- The terminal device of claim 25, wherein the second threshold comprises at least one of:demodulation time of uplink control information UCI in a physical uplink shared channel PUSCH;processing time of PUSCH; andand demodulation time of a PUSCH demodulation reference signal (DMRS).
- The terminal device of claim 25, wherein the second threshold is a preconfigured threshold or the second threshold is a network device configured threshold.
- The terminal device according to any of claims 25 to 30, wherein the first preset condition further comprises at least one of:the MAC PDU corresponding to the CG resource is already delivered to a physical layer;the MAC PDU corresponding to the CG resource is in an unfinished transmission state;the MAC PDU corresponding to the CG resource is in a transmission state;the data carried on the CG resources is above a third threshold;the priority of the MAC control element CE carried on the CG resource is higher than a fourth threshold;the DG resources are used for transmitting newly transmitted data or retransmitted data;the scheduling information is used for scheduling newly transmitted data or retransmitted data;the size of the transmission block TBS and the size of the CG which are indicated by the scheduling information are different; andand the receiving time of the scheduling information does not meet the processing time delay of the previous CG transmission.
- The terminal device of claim 31, wherein the third threshold comprises a priority of data carried on the DG resources, and/or wherein the fourth threshold comprises a priority of MAC CE carried on the DG resources.
- The terminal device of claim 31, wherein the processing unit is further configured to:if the scheduling information is received in the target time period, determining that the receiving time of the scheduling information does not meet the processing time delay of the previous CG transmission;wherein the target time period comprises at least one of the following time periods:a time period from the starting time of sending a Physical Uplink Shared Channel (PUSCH) by the terminal equipment to the starting time of receiving a Physical Downlink Control Channel (PDCCH) by the terminal equipment; a time period from the end time of sending the Physical Uplink Shared Channel (PUSCH) by the terminal equipment to the end time of receiving the PDCCH by the terminal equipment; a time period from the end time of the terminal equipment transmitting uplink control information UCI in the PUSCH to the end time of the terminal equipment receiving a demodulation reference signal DMRS corresponding to the PDCCH; a time period from the end time of the terminal equipment sending uplink control information UCI in the PUSCH to the end time of the terminal equipment receiving the PDSCH; and the terminal equipment transmits the time period from the ending time of the uplink control information UCI in the PUSCH to the starting time of the terminal equipment for receiving the PDSCH.
- The terminal device according to any of claims 22 to 33, wherein the terminal device is adapted to an industrial internet IIoT and/or a new air interface-unlicensed communication network.
- A terminal device, comprising:the communication unit is used for receiving scheduling information which is sent by network equipment and used for scheduling the dynamic grant DG resources;a processing unit for determining to configure an authorized CG resource;in a case that a target hybrid automatic repeat request, HARQ, process used by the CG resource is already occupied by the DG resource, the processing unit is further to:and replacing the MAC PDU corresponding to the DG resource by the media access control MAC protocol data unit PDU corresponding to the CG resource.
- The terminal device of claim 35, wherein the processing unit is further configured to perform at least one of the following actions:submitting the CG resources to the target HARQ process;generating MAC PDU corresponding to the CG resource for the target HARQ process;starting or restarting a CG timer of the CG resource;confirming that the new data indicates NDI flips.
- The terminal device according to claim 35 or 36, wherein the processing unit is specifically configured to:and if the target HARQ process is occupied by the DG resources and meets a second preset condition, replacing the MAC PDU corresponding to the DG resources by the MAC PDU corresponding to the CG resources.
- The terminal device according to claim 37, wherein the second preset condition comprises at least one of the following conditions:the priority of the CG resource is higher than a first threshold;the data carried on the CG resources is above a third threshold;the priority of the MAC control element CE carried on the CG resource is higher than a fourth threshold;a CG timer for the CG resource is running;the authorization for triggering the CG timer of the CG resource to start or restart is DG;the CG timer used for triggering the CG resource is started or restarted and authorized to be a physical downlink control channel PDCCH scrambled by using a cell radio network temporary identifier C-RNTI;the time corresponding to the CG resource to the receiving time of the scheduling information meets the processing time delay of one resource transmission;the time from the moment corresponding to the CG resource to the moment corresponding to the scheduling information is greater than or equal to a second threshold; andthe DG resource has been transmitted or completed with one transmission.
- The terminal device of claim 38, wherein the first threshold comprises a priority of the DG resources.
- The terminal device of claim 38, wherein the third threshold comprises a priority of data carried on the DG resources, and/or wherein the fourth threshold comprises a priority of MAC CE carried on the DG resources.
- The terminal device according to any of claims 35 to 40, wherein the communication unit is further configured to:and sending the data loaded on the CG resources, wherein the data loaded on the CG resources comprises the information of the target HARQ process.
- The terminal device according to any of claims 35 to 41, wherein the terminal device is adapted to an industrial Internet IIoT and/or a new air interface-unlicensed communication network.
- A terminal device, comprising:a processor, a memory for storing a computer program, and a transceiver, the processor for invoking and executing the computer program stored in the memory to perform the method of any one of claims 1 to 13.
- A chip, comprising:a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 13.
- A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 13.
- A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 1 to 13.
- A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 1-13.
- A terminal device, comprising:a processor, a memory for storing a computer program, and a transceiver, the processor for invoking and running the computer program stored in the memory to perform the method of any one of claims 14 to 21.
- A chip, comprising:a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 14 to 21.
- A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 14 to 21.
- A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 14 to 21.
- A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 14-21.
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| PCT/CN2019/107599 WO2021056213A1 (en) | 2019-09-24 | 2019-09-24 | Wireless communication method and device |
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| US11246154B2 (en) * | 2017-09-07 | 2022-02-08 | Comcast Cable Communications, Llc | Configured grant and dynamic grant transmission |
| US10645610B2 (en) * | 2017-11-24 | 2020-05-05 | Mediatek Singapore Pte. Ltd. | Method and apparatus for skipping uplink transmission in mobile communications |
| WO2019137116A1 (en) * | 2018-01-11 | 2019-07-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and devices for controlling override of configured grant |
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| WO2017091968A1 (en) * | 2015-12-01 | 2017-06-08 | 华为技术有限公司 | Wireless communication method and apparatus |
| CN108633034A (en) * | 2017-03-24 | 2018-10-09 | 华为技术有限公司 | A kind of method of data transmission, the network equipment and terminal device |
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