CN117616801A - Control method, control equipment and storage medium - Google Patents
Control method, control equipment and storage medium Download PDFInfo
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- CN117616801A CN117616801A CN202180100219.7A CN202180100219A CN117616801A CN 117616801 A CN117616801 A CN 117616801A CN 202180100219 A CN202180100219 A CN 202180100219A CN 117616801 A CN117616801 A CN 117616801A
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- 238000012544 monitoring process Methods 0.000 claims description 29
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application discloses a control method, terminal equipment and a storage medium, wherein in the process of configuring authorized small data transmission CG-SDT, the terminal equipment utilizes first CG resources or first DG resources to complete first uplink data transmission and starts a first timer; during the operation of the first timer, the terminal equipment monitors a physical downlink control channel PDCCH scrambled by a first radio network temporary identifier RNTI; the first RNTI is an RNTI configured for the CG-SDT procedure.
Description
The present disclosure relates to mobile communication technologies, and in particular, to a control method, apparatus, and storage medium.
In the fifth generation (5th generation,5G) New Radio (NR) system, radio resource control (Radio Resource Control, RRC) states are divided into 3 types, which are respectively: an RRC IDLE state (rrc_idle), an RRC INACTIVE state (rrc_inactive), an RRC CONNECTED state (rrc_connected). Wherein the rrc_inactive state is a new state introduced by the 5G system from the energy saving point of view, for a terminal device (UE) in the rrc_inactive state, radio bearers and all radio resources are released, but the UE side and the base station side reserve the UE access context in order to quickly restore the RRC connection, and the network typically keeps the UE in the rrc_inactive state where data transmission is not frequent. Before Release-16, rel-16, the UE in rrc_inactive does not support data transmission, and when data arrives at the originating (MO) or receiving (Mobile Terminated, MT), the UE needs to restore the connection, and releases to rrc_inactive state after the data transmission is completed. For UEs with small data size and low transmission frequency, such a transmission mechanism may cause unnecessary power consumption and signaling overhead. Thus, rel-17 stands for research on small data transfer (Small Data Transmission, SDT) under rrc_inactive, project goals have two main directions: the uplink small data transmission based on the random access process (two steps/four steps) and the uplink small data transmission based on the pre-configured resource are not limited specifically.
Disclosure of Invention
The embodiment of the application provides a control method, equipment and a storage medium, which are used for controlling physical downlink control channel (Physical Downlink Control Channel, PDCCH) monitoring in a process of performing SDT (CG-SDT) through configuring authorized (CG) resources based on a feasible timer mechanism.
The technical scheme of the embodiment of the application is realized as follows:
the control method provided by the embodiment of the application comprises the following steps:
in the CG-SDT process, the terminal equipment completes first uplink data transmission by utilizing a first CG resource or a first DG resource and starts a first timer;
during the operation of the first timer, the terminal device listens to a PDCCH scrambled by a first radio network temporary identity (Radio Network Temporary Identifier, RNTI); the first RNTI is an RNTI configured for the CG-SDT procedure.
The terminal device provided by the embodiment of the application comprises:
the first starting unit is configured to finish first uplink data transmission by utilizing a first CG resource or a first DG resource in the CG-SDT process and start a first timer;
a monitoring unit, configured to monitor a physical downlink control channel PDCCH scrambled by a first radio network temporary identifier RNTI during the operation of the first timer; the first RNTI is an RNTI configured for the CG-SDT procedure.
The terminal equipment provided by the embodiment of the application comprises 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 control method.
The chip provided by the embodiment of the application is used for realizing the control method.
Specifically, the chip includes: and a processor for calling and running the computer program from the memory, so that the device mounted with the chip executes the control method described above.
The computer readable storage medium provided in the embodiments of the present application is used for storing a computer program, where the computer program makes a computer execute the control method described above.
The computer program product provided by the embodiment of the application comprises computer program instructions, wherein the computer program instructions enable a computer to execute the control method.
The computer program provided in the embodiments of the present application, when executed on a computer, causes the computer to execute the control method described above.
By the technical scheme, the monitoring of the PDCCH in the CG-SDT process is controlled by starting and running the first timer, so that the monitoring of the PDCCH in the CG-SDT process is controlled based on a feasible timer mechanism.
Fig. 1 is a schematic diagram of an alternative composition structure of a communication system according to an embodiment of the present application;
fig. 2 is a schematic flow chart of EDT in LTE provided in an embodiment of the present application;
fig. 3 is a schematic flow chart of PUR-based data transmission in LTE provided in an embodiment of the present application;
FIG. 4 is a schematic flow chart of an alternative control method according to an embodiment of the present disclosure;
FIG. 5A is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 5B is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 6 is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 7A is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 7B is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 7C is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 7D is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 8 is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 9 is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 10 is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 11 is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 12 is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 13 is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
FIG. 14 is an alternative schematic diagram of a timer running mechanism provided in an embodiment of the present application;
fig. 15 is a schematic diagram of an alternative composition structure of a terminal device according to an embodiment of the present application;
fig. 16 is a schematic structural diagram of a communication device provided in an embodiment of the present application;
FIG. 17 is a schematic block diagram of a chip provided in an embodiment of the present application;
fig. 18 is a schematic block diagram of a communication system provided in an embodiment of the present application.
The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Fig. 1 is a schematic diagram of an application scenario according to 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 interface. Multi-service transmission is supported between terminal device 110 and network device 120.
It should be understood that the present embodiments are illustrated by way of example only with respect to communication system 100, but the present embodiments are not limited thereto. That is, the technical solution of the embodiment of the present application may be applied to various communication systems, for example: long term evolution (Long Term Evolution, LTE) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), internet of things (Internet of Things, ioT) systems, narrowband internet of things (Narrow Band Internet of Things, NB-IoT) systems, enhanced Machine-type-Type Communications (eMTC) systems, 5G communication systems (also known as New Radio (NR) communication systems), or future communication systems, etc.
In the communication system 100 shown in fig. 1, the network device 120 may be an access network device in communication with the terminal device 110. The 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 base station (Evolutional Node B, eNB or eNodeB) in a long term evolution (Long Term Evolution, LTE) system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, or a base station (gNB) in a NR system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 may be a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.
Terminal device 110 may be any terminal device including, but not limited to, a terminal device that employs a wired or wireless connection with network device 120 or other terminal devices.
For example, the terminal device 110 may refer to an access terminal, 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 (Session Initiation Protocol, SIP) phone, an IoT device, a satellite handset, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handset with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle 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 comprise a core network device 130 in communication with the base station, which core network device 130 may be a 5G core,5gc device, e.g. an access and mobility management function (Access and Mobility Management Function, AMF), further e.g. an authentication server function (Authentication Server Function, AUSF), further e.g. a user plane function (User Plane Function, UPF), further e.g. a session management function (Session Management Function, SMF). Optionally, the core network device 130 may also be a packet core evolution (Evolved Packet Core, EPC) device of the LTE network, for example a session management function+a data gateway (Session Management Function + Core Packet Gateway, smf+pgw-C) device of the core network. It should be appreciated that SMF+PGW-C may perform the functions performed by both SMF and PGW-C. In the network evolution process, the core network device may also call other names, or form a new network entity by dividing the functions of the core network, which is not limited in this embodiment of the present application.
Communication may also be achieved by establishing connections between various functional units in the communication system 100 through a next generation Network (NG) interface.
For example, the terminal device establishes an air interface connection with the access network device through a Uu interface, and is used for transmitting user plane data and control plane signaling; the terminal equipment can establish control plane signaling connection with AMF through NG interface 1 (N1 for short); an access network device, such as a next generation radio access base station (gNB), can establish a user plane data connection with a UPF through an NG interface 3 (N3 for short); the access network equipment can establish control plane signaling connection with AMF through NG interface 2 (N2 for short); the UPF can establish control plane signaling connection with the SMF through an NG interface 4 (N4 for short); the UPF can interact user plane data with the data network through an NG interface 6 (N6 for short); the AMF may establish a control plane signaling connection with the SMF through NG interface 11 (N11 for short); the SMF may establish a control plane signaling connection with the PCF via NG interface 7 (N7 for short).
Fig. 1 exemplarily illustrates one base station, one core network device, and two terminal devices, alternatively, the wireless communication system 100 may include a plurality of base station devices and each base station may include other number of terminal devices within a coverage area, which is not limited in the embodiment of the present application.
It should be noted that fig. 1 illustrates, by way of example, a system to which the present application is applicable, and of course, the method shown in the embodiment of the present application may be applicable to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship. It should also be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication that there is an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B. It should also be understood that, in the embodiments of the present application, reference to "corresponding" may mean that there is a direct correspondence or an indirect correspondence between the two, or may mean that there is an association between the two, or may be a relationship between an instruction and an indicated, configured, or the like. It should also be understood that "predefined" or "predefined rules" mentioned in the embodiments of the present application may be implemented by pre-storing corresponding codes, tables or other manners that may be used to indicate relevant information in devices (e.g., including terminal devices and network devices), and the present application is not limited to a specific implementation thereof. Such as predefined may refer to what is defined in the protocol. It should also be understood that, in the embodiments of the present application, the "protocol" may refer to a standard protocol in the field of communications, and may include, for example, an LTE protocol, an NR protocol, and related protocols applied in future communication systems, which are not limited in this application.
In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following description is given of related technologies of the embodiments of the present application, and the following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as an alternative, which all belong to the protection scope of the embodiments of the present application.
CG
There are two modes of uplink scheduling of the terminal device, one is dynamic scheduling, namely Dynamic Grant (DG), and the other is CG. DG typically performs resource allocation by means of downlink control signaling (Downlink Control Information, DCI). CG includes two types, configuration grant Type 1 (configured grant Type, CG Type 1) and configuration grant Type 2 (configured grant Type, CG Type 2), respectively. Parameters such as time-frequency resource position, CG resource period, hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) process number using CG resource, modulation and coding strategy (Modulation and Coding Scheme, MCS) and the like of the configuration authorization type 1 are provided to the terminal equipment by the network equipment through RRC signaling, and are stored as configuration uplink authorization (configured uplink grant) by the terminal, and the terminal can use the configuration authorization for uplink data transmission after the RRC signaling configures the configuration authorization type 1; the period of configuring CG resources of grant type 2, the number of HARQ processes using CG resources, which MCS table to use, etc. parameters are provided to the terminal device by the network device through RRC signaling, but the time-frequency resource location, MCS index value, etc. are provided to the terminal by the network device through DCI and stored by the terminal as configuring uplink grants, i.e. configuring grant type 2 is activated or deactivated by physical layer or layer 1 signaling control.
Early data transmission (Early Data Transmission, EDT)
In LTE, EDT, i.e. small data transmission, has been introduced, during which the UE may remain in an idle (idle) state or a suspended (suspended) state or an inactive (inactive) state all the time, completing the transmission of uplink and/or downlink small data packets.
For the EDT process, the UE does not enter the connected state, and the transmission of the small packet is completed. In configuration, the network configures a maximum Transport Block (TB) size (size) allowed to be transmitted by the current network on a system information Block (System Information Block, SIB) 2, and the UE determines the amount of data to be transmitted, and if the amount of data to be transmitted is less than the maximum TB size, the UE may initiate EDT transmission; otherwise, the UE enters a connection state to transmit data using a normal connection establishment procedure.
If the cell in which the UE initiates Uplink (UP) -EDT is the same as the last serving cell, after receiving the connection recovery request and the Uplink data sent by the UE, the base station may directly submit the Uplink data to the core network, where the data transmission flow of the Uplink EDT is shown in fig. 2, and includes:
s201, the UE sends a random access preamble (Random Access Preamble) to the eNB;
S202, the eNB transmits a random access response to the UE (Random Access Response).
S203, the UE transmits an RRC connection resume request to the eNB (RRC Connretion resume request).
RRC Connretion resume request carries a resume identification (resume ID), a resume case (resume case), an authentication token (shortresumeMAC-I), and Uplink Data (Uplink Data).
S204, the eNB sends a UE text recovery request to the MME (Context resume request).
S205, the bearer is modified between the MME and the S-GW.
S206, the MME sends a text recovery response to the UE (Context resume response).
S207, the UE transmits uplink data to the S-GW.
S208, the S-GW sends downlink data to the base station.
Wherein S207 is optional.
S209, the eNB and MME perform a suspension procedure, and the MME and S-GW modify the bearer therebetween.
S210, the eNB transmits an RRC connection release notification to the UE (RRC Connction Release).
RRC Connction Release carries Release case (Release case), resume ID, NCC and downstream data.
Preconfigured uplink resources (Preconfigured Uplink Resource, PUR)
In LTE Release16, a method for transmitting data by PUR in idle state is introduced for a mobile internet of things scenario of narrowband internet of things (Narrow-Band Internet of Things, NB-IoT) and LTE-based global internet of things (eMTC). The PUR is only valid in the currently configured cell, i.e. when the UE detects a cell change and initiates a random access in the new cell, the UE needs to release the PUR of the original cell configuration. The PUR transmission flow is similar to the LTE UP-EDT shown in fig. 2, except that the process of transmitting a preamble acquisition Time Advance (TA) and an uplink scheduling grant (UL grant) is omitted.
The air interface flow based on PUR transmission is as shown in fig. 3, and before S203 of the air interface flow shown in fig. 2, the method comprises the following steps:
s200, the UE has effective PUR resources.
R17SDT
In the 5G NR system, the RRC states include 3 types, respectively: rrc_idle, rrc_inactive, and rrc_connected. Wherein, the rrc_inactive state is a new state introduced by the 5G system from the energy saving point of view, and for the UE in the rrc_inactive state, radio bearers and all radio resources are released, but the UE side and the base station side reserve the UE access context in order to quickly restore the RRC connection. The network typically keeps UEs with infrequent data transmissions in rrc_inactive state. Before Rel-16, the UE in rrc_inactive state does not support data transmission, and when MO or MT data arrives, the UE needs to resume connection, and releases to INACTIVE state after data transmission is completed. For UEs with small data size and low transmission frequency, such a transmission mechanism may cause unnecessary power consumption and signaling overhead. Thus, rel-17 stands for research on SDT under RRC_INACTIVE, project goals have two main directions: uplink small data transmission based on random access procedure (two/four steps) and uplink small data transmission based on pre-configured resources (such as CG type 1).
For small data transmissions based on pre-configured resources, the 3gpp RAN2 working group goes through the discussion to conclude that:
1. for CG-SDT, subsequent (sbusquent) data transmissions can use CG resources or DG resources (e.g., dynamic grant of C-RNTI addressed to UE), the detailed information of C-RNTI can be the same as the previous C-RNTI, or can be explicitly configured by the network, which can be discussed in stage 3.
2. The UE starts a window (window) for CG-SDT after CG/DG transmission. Further studies (For Further Study, FFS) were made on whether to design new timers or reuse existing timers.
3. CG-SDT dynamic authorization support retransmission
4. Uplink CG-SDT supports configuration of multiple HARQ processes.
It can be seen that the subsequent (sub-sequence) data transmission in the CG-SDT process may utilize either CG resources or DG resources, and may support configuration of multiple HARQ processes. In the CG-SDT process, the terminal starts a window after completing data transmission by using CG resources or DG resources each time, but the behavior of the terminal device in the window and after the window times out is not yet defined.
In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies may be optionally combined with the technical solutions of the embodiments of the present application, which all belong to the protection scope of the embodiments of the present application. Embodiments of the present application include at least some of the following.
An optional process flow of the control method provided in the embodiment of the present application, as shown in fig. 4, includes the following steps:
s401, in the CG-SDT process, the terminal equipment completes first uplink data transmission by using a first CG resource or a first DG resource, and starts a first timer.
Optionally, the first CG resource or the HARQ process used by the first DG resource is a HARQ process configured for CG resources. In this embodiment of the present application, when CG resources are used to transmit first uplink data, CG resources for transmitting the first uplink data are referred to as first CG resources, and when DG resources are used to transmit first uplink data, DG resources for transmitting the first uplink data are referred to as first DG resources.
In this embodiment of the present application, the first uplink data is any uplink data sent by the terminal device to the network device by using CG resources or DG resources in the CG-SDT process, and the first uplink data sent by the terminal device to the network device by using the first CG resources or the first DG resources may be new transmission data or retransmission data.
Optionally, when the data last transmitted in the HARQ process for transmitting the first uplink data is not the first uplink data, the currently transmitted first uplink data is new transmission data, and the process for transmitting the first uplink data is new transmission.
Optionally, when the data last transmitted by the HARQ process for transmitting the first uplink data is the first uplink data, the currently transmitted first uplink data is retransmitted, and the process of transmitting the first uplink data is retransmitted.
In the embodiment of the present application, the first timer may be a new timer introduced, or may be a CG timer (CGT).
Optionally, the start timing of the first timer includes, but is not limited to, one of:
the method comprises the steps of A1, a first CG resource or a starting symbol of the first DG resource;
the time A2, the first CG resource or the last symbol of the first DG resource;
the opportunity A3 is a first PDCCH receiver opportunity after the first uplink data transmission is completed;
and the time A4 is after a period of time after the first uplink data transmission is completed.
And S402, during the operation of the first timer, the terminal equipment monitors the PDCCH scrambled by the first RNTI.
In this embodiment of the present application, the first RNTI is an RNTI configured for the CG-SDT process. Optionally, the first RNTI includes at least one of: one or more of a cell radio network temporary identity (Cell Radio Network Temporary Identifier, C-RNTI), a configured scheduling RNTI (Configured Scheduling RNTI, CS-RNTI), or other RNTIs configured for CG-SDT.
Alternatively, the length of the first timer may be dynamically configured by the network, or may be a predefined fixed length.
In this embodiment of the present application, the first timer is used for controlling the PDCCH, and the first timer may not be multiplexed or multiplexed in the newly transmitted control.
Scenes for control of first timer not multiplexed with new transmission
Taking the starting time of the first timer as a time A4, wherein the starting time of the first timer comprises one of the following steps:
the opportunity A41 is after the fixed duration of the first uplink data transmission is completed;
the timing a42 and the second timer time out.
When the starting time of the first timer is time A41, the terminal equipment monitors the time after the first uplink data is transmitted, and when the monitored time length reaches a fixed time length, the first timer is started.
As shown in fig. 5A, the terminal device completes transmission of the first uplink data 501 at time T1, and starts a first timer at time T2, where the interval between time T1 and time T2 is fixed by a period T.
Optionally, the fixed duration is predetermined or network device configured.
When the starting time of the first timer is time A42, the terminal equipment completes the transmission of the first uplink data, starts the second timer, and starts the first timer when the second timer is overtime.
As shown in fig. 5B, the terminal device completes the transmission of the first uplink data 501 at time t1, starts the second timer at time t3, and starts the first timer at time t4 when the second timer times out at time t 4.
In some embodiments, the start timing of the second timer includes one of:
the first CG resource or the first symbol position of the first DG resource at occasion B1;
the time B2, the first CG resource or the last symbol position of the first DG resource;
and the opportunity B3 is the receiving opportunity of the first PDCCH after the first uplink data transmission is completed.
In some embodiments, the configuration of the length of the second timer includes one of:
dynamically configuring network equipment;
a predefined fixed length.
In some embodiments, during operation of the second timer, the terminal device does not listen to the PDCCH scrambled by the first RNTI.
After the first uplink data is completed, the terminal equipment starts a second timer, does not monitor the PDCCH scrambled by the first RNTI during the operation of the second timer, starts the first timer after the second timer is overtime, and monitors the PDCCH scrambled by the first RNTI during the operation of the first timer.
As shown in fig. 5B, the PDCCH is not monitored between time t1 and time t4 when the second timer is running, and the PDCCH is monitored after the second timer is started.
After the terminal equipment finishes transmitting one uplink data transmission, the terminal equipment receives the uplink data from the transmission of the uplink data to the network equipment, decodes the uplink data, and feeds back the PDCCH to the terminal, so that the UE cannot receive the PDCCH transmitted by the network even if the UE keeps monitoring during the period of time, and therefore, the power consumption of the terminal equipment can be saved by controlling the PDCCH not to be monitored through the second timer, and the purpose of saving electricity is achieved.
In the embodiment of the present application, one HARQ process may maintain one first timer and one second timer, and a plurality of HARQ processes may also maintain one first timer and one second timer.
Taking as an example that one HARQ process may maintain one first timer and one second timer, different HARQ corresponds to different first timers and second timers. In an example, the HARQ process for the first CG resource usage includes: HARQ process 1, HARQ process 2 and HARQ process 3, wherein HARQ process 1 maintains a first timer a and a second timer a, HARQ process 2 maintains a first timer B and a second timer B, and HARQ process 3 maintains a first timer C and a second timer C.
Taking as an example that multiple HARQ processes may maintain one first timer and one second timer, different HARQ processes correspond to the same first timer and the same second timer. In an example, the HARQ process for the first CG resource usage includes: HARQ process 1, HARQ process 2, and HARQ process 3, wherein HARQ process 1, HARQ process 2, and HARQ process 3 together maintain a first timer D and a second timer D.
In the case of maintaining a first timer and a second timer for a HARQ process, the processing performed by the terminal device further includes:
in some embodiments, the first timer corresponds to the first HARQ process, and during operation of the first timer, the terminal device does not utilize a second CG resource for data transmission, the second CG resource corresponding to the first HARQ process.
And when the first timer corresponding to one HARQ process runs, the terminal equipment does not utilize the second CG resource of the HARQ process to transmit data.
In some embodiments, the terminal device receives a new transmission or retransmission schedule for the first HARQ process, stops the first timer, and performs new transmission of second uplink data or retransmission of the first uplink data based on the new transmission or retransmission schedule.
And when the terminal equipment receives the new transmission schedule or the retransmission schedule aiming at the first HARQ process, carrying out new transmission of second uplink data or retransmission of first uplink data based on the received new transmission schedule or retransmission schedule, and stopping a first timer maintained by the running first HARQ process.
In an example, when the terminal device receives a new transmission schedule for the first HARQ process, a new transmission of the second uplink data is performed based on the received new transmission schedule.
In an example, when the terminal device receives the retransmission schedule for the first HARQ process, the first uplink data is retransmitted based on the received retransmission schedule.
Optionally, the terminal device performs new transmission of the second uplink data or retransmission of the first uplink data by using a second DG resource of the first HARQ process, where the second DG resource is a resource dynamically scheduled to the terminal device by the network device through new transmission scheduling or retransmission scheduling.
Optionally, the terminal device performs new transmission of the second uplink data or retransmission of the first uplink data based on the second DG resource, starts a first timer, and monitors the PDCCH scrambled by the first RNTI during operation of the first timer.
In some embodiments, the terminal device receives a first downlink feedback indication (Downlink Feedback Information, DFI) indicating that data is received correctly or a second DFI indicating that data is not received correctly, stops the first timer, and performs new transmission of second uplink data or retransmission of the first uplink data based on the first DFI or the second DFI.
And if the terminal equipment receives the indication first DFI or the second DFI, carrying out new transmission of second uplink data or retransmission of the first uplink data based on the received first DFI or the received second DFI, and stopping a first timer maintained by the first HARQ process.
In an example, if the terminal device receives the first DFI, the terminal device does not perform a new transmission of the second uplink data based on the received first DFI.
In an example, the terminal device receives the second DFI, and then retransmits the first uplink data based on the received second DFI.
Optionally, the terminal device performs new transmission of the second uplink data or retransmission of the first uplink data by using the second CG resource of the first HARQ process.
Optionally, the terminal device performs new transmission of the second uplink data or retransmission of the first uplink data based on the second CG resource, starts the first timer, and monitors the PDCCH scrambled by the first RNTI during operation of the first timer. Wherein the second CG resource is a CG resource different from the first CG resource using the first HARQ process.
In this embodiment of the present application, the first CG resource and the second CG resource are CG resources with different time-frequency positions using the same HARQ process. Here, when the network device configures CG resources to the terminal device, the terminal device is provided with information about a set of CG resources, where the CG resources appear according to a certain rule (e.g., a period). These CG resources may bind one or more HARQ process numbers, e.g. 4 HARQ process numbers are allocated to CG resources by the network device, and CG resources with the same HARQ process may appear according to a certain time law. Assuming that the ID of the HARQ process used by the first CG resource is 0, after a period of time, data transmission is performed again by using the CG resource with the HARQ process ID of 0, and at this time, the CG resource with the HARQ process ID of 0 is used as the second CG resource.
In this embodiment of the present application, the terminal device passively stops the first timer when receiving the following information sent by the network device: scheduling new transmissions or retransmissions for the first HARQ process, a first DFI indicating correct reception of data or a second DFI indicating incorrect reception of data. When the terminal equipment does not receive new transmission or retransmission scheduling for the first HARQ process, a first DFI indicating correct data reception and a second DFI indicating incorrect data reception during the operation of the first timer, the transmission of the uploaded data is not performed until the first timer is overtime, and whether the retransmission of the first uplink data is performed or not is judged based on the retransmission mechanism 1.
In some embodiments, when the first timer expires or is not running, the terminal device performs new transmission of second uplink data or retransmission of the first uplink data based on the second CG resource, where the second CG resource corresponds to the first HARQ process.
In the embodiment of the present application, the retransmission mechanism of the terminal device includes:
retransmission mechanism 1: and controlling retransmission of the first uplink data based on the first transmission times.
When the retransmission mechanism is the retransmission mechanism 1, the terminal device performs new transmission of the second uplink data or retransmission of the first uplink data based on the second CG resource, including:
And the terminal equipment performs new transmission of the second uplink data or retransmission of the first uplink data based on the first transmission times. The terminal equipment determines to retransmit the first uplink data or newly retransmit the second uplink data based on the first transmission times and the first uplink data transmission times or retransmission times.
Optionally, the first transmission frequency is a maximum transmission frequency of the first uplink data, where the first uplink transmission frequency is used to compare with the transmission frequency of the first uplink data to determine whether to perform new transmission of the second uplink data or retransmission of the first uplink data. The number of transmission times of the first uplink data includes: the sum of the new number of transmissions 1 of the first uplink data and the number of retransmissions of the first uplink data.
Optionally, the first transmission number is a maximum retransmission number of the first uplink data. At this time, the first uplink transmission number is used to compare with the first uplink data retransmission number to determine whether to perform new transmission of the second uplink data or retransmission of the first uplink data.
Optionally, the first transmission number is used to limit the number of times that the terminal device automatically transmits the first uplink data, and does not act on the number of times that the network device indicates the first uplink data transmission by the following information: scheduling new transmissions or retransmissions for the first HARQ process, a first DFI indicating correct receipt of data, and a second DFI indicating incorrect receipt of data.
In some embodiments, the terminal device performs new transmission of the second uplink data or retransmission of the first uplink data based on the first transmission number, including:
when the first count value is smaller than the first transmission times or the first count value is smaller than the second transmission times, and the previous transmission of the first HARQ process occurs on CG resources, the terminal equipment utilizes the second CG resources to retransmit the first uplink data, wherein the second transmission times are equal to the first transmission times plus 1, and the first count value plus 1; the first count value is the number of times that the terminal equipment transmits the first uplink data through the first HARQ process, and the second CG resource corresponds to the first HARQ process;
or when the first count value is equal to the first transmission times or the first count value is equal to the second transmission times, the terminal equipment uses a second CG resource to carry out new transmission of second uplink data, and the first count value is reset.
Here, the first count value is a count value (CONNTER) corresponding to the first HARQ process, and is used for counting the number of times of automatically transmitting an uplink data on the first HARQ. Wherein different HARQ processes have corresponding CONNTER.
The initial value of the first count value may be 0, and when the terminal device automatically sends the first uplink data once, the first count value is added by 1 until the first count value is equal to the first transmission number (the first transmission number is the maximum transmission number of the first uplink data) or the first count value is equal to the first transmission number added by 1, that is, the second transmission number (the first transmission number is the maximum retransmission number of the first uplink data).
Here, when the first timer times out or is not running, the terminal device continues to retransmit the first uplink data if the first count value is smaller than the first transmission number or the second transmission number, and after the first uplink data is retransmitted, the first count value is incremented by 1. And under the condition that the first count value is equal to the first transmission times or the first count value is equal to the second transmission times, the retransmission times of the first uplink data reach the maximum value, the terminal equipment carries out new transmission of the second uplink data, and the first count value is reset to the initial value.
In the embodiment of the present application, when the terminal device is executing the retransmission mechanism 1 based on the first transmission times, if the terminal device receives a new transmission schedule or retransmission schedule for the first HARQ sent by the network device, or receives a first DFI indicating that data is correctly transmitted, the first timer is stopped, and the retransmission mechanism 1 is stopped; if a second DFI which is sent by the network equipment and indicates that the data is not transmitted correctly is received, the running first timer is stopped in advance based on the second DFI, the next automatic retransmission is started, at this time, the terminal equipment retransmits the first uplink data, and the first count value is increased by 1.
In some embodiments, the first transmission number is configured in a manner that:
and configuring network equipment.
In the case of maintaining a first timer and a second timer for a plurality of HARQ processes, the processing performed by the terminal device further includes:
in some embodiments, the terminal device completes the first uplink data transmission using the first CG resource or the first DG resource, and starts a third timer;
and during the operation of the third timer, the terminal equipment does not utilize a second CG resource to carry out new transmission of second uplink data, wherein the second CG resource corresponds to the first HARQ process.
Here, the HARQ process used by the first DG resource, i.e., the first HARQ process, is configured for CG resources.
Optionally, the third timer is an existing CGT.
Optionally, the start timing of the third timer includes one of:
the timing C1, the first CG resource or the initial symbol of the first DG resource;
the timing C2, the first CG resource, or the last symbol of the first DG resource;
the opportunity C3 is a first PDCCH receiving opportunity after the first uplink data transmission is completed;
and the terminal equipment does not utilize the first HARQ process to retransmit the first uplink data corresponding to the second CG resource and monitors the PDCCH scrambled by the first RNTI in the first timer operation period and the third timer operation period.
Optionally, the duration of the third timer is greater than the duration of the first timer.
Optionally, the time period of the third timer is longer than the time period of the second timer.
As shown in fig. 6, the terminal device completes transmission of the first uplink data 501 at time t1, starts the third timer at time t4, starts the first timer at time t5, and the time interval from t1 to t5 is based on the fixed duration or the duration of the second timer. And the terminal equipment monitors the PDCCH scrambled by the first RNTI in the operation period of the first timer, and does not carry out new transmission of the second uplink data in the operation period of the third timer.
In some embodiments, the terminal device restarts the third timer when it receives a retransmission schedule or a new transmission schedule for the first HARQ process during the operation of the third timer.
And during the operation of the third timer, when the terminal equipment receives the new transmission scheduling aiming at the first HARQ process, the terminal equipment carries out new transmission of the second uplink data based on the second DG resource of the new transmission scheduling, and restarts the third timer, so that the automatic starting of new transmission of other uplink data to be transmitted is avoided.
In some embodiments, the terminal device receives a retransmission schedule or a new transmission schedule for the first HARQ process during the third timer running, stopping the first timer.
And when the terminal receives the retransmission schedule during the operation of the third timer, stopping the first timer, and retransmitting the first uplink data by using the first HARQ process based on the second DG resource scheduled by the retransmission schedule, wherein the operation of the third timer is not affected.
And during the operation period of the third timer, the terminal equipment receives the new transmission scheduling aiming at the first HARQ process, stops the first timer, and uses the first HARQ process to carry out new transmission of the second uplink data based on the second DG resource scheduled by the new transmission scheduling, and at the moment, the third timer can be stopped or restarted.
In some embodiments, during operation of the third timer, the terminal device receives a first DFI indicating that the data is correct or a second DFI indicating that the data is not received correctly, stopping the first timer.
In an example, the terminal device receives a first DFI indicating that the data was received correctly, stops the first timer and makes a new transmission of the second uplink data using the second CG resource of the first HARQ process.
In an example, the terminal device receives a second DFI indicating that the data was not received correctly, stops the first timer and performs retransmission of the first uplink data using the second CG resource using the first HARQ process.
In the case that the terminal device controls the new transmission through the third timer, the retransmission mechanism operated by the terminal device may include:
and the retransmission mechanism 2 is used for retransmitting the first uplink data by the terminal equipment by using a second CG resource when the first timer is overtime or stops running, the third timer is in a running state, the previous transmission of the first HARQ process occurs on the CG resource, and the second CG resource corresponds to the first HARQ process.
In the retransmission mechanism 2, the terminal device controls retransmission of the first uplink data through the first timer, and when the third timer runs, the first timer times out or does not run, and the previous transmission of the first HARQ process occurs on CG resources, retransmission of the first uplink data is performed.
The retransmission mechanism is the retransmission mechanism 2, as shown in fig. 7A, the running mechanism of the timer in the terminal device may start the third timer at time t702 in the transmission process of the uplink data 701, and start the first timer at time t703 after the fixed duration or the second timer is overtime, where the first timer is overtime at time t704, the terminal device monitors the PDCCH between time t703 and t704, and when the first timer is overtime, the terminal device performs retransmission of the uplink data 701, where the third timer is overtime at time t 705.
And a retransmission mechanism 3, when the fourth timer is overtime, the third timer is in an operation state, and the previous transmission of the first HARQ process occurs on CG resources, the terminal device uses the second CG resources to retransmit the first uplink data, the second CG resources correspond to the first HARQ process, and the second CG resources correspond to the first HARQ process.
In the retransmission mechanism 3, the terminal device controls retransmission of the first uplink data through the fourth timer, when the third timer runs, new transmission of the second uplink data cannot be performed, and when the third timer runs, the fourth timer times out, and the previous time of the first HARQ occurs on CG resources, the terminal device performs retransmission of the first uplink data.
Optionally, the fourth timer is a configured grant weight transmission timer CG retransmission timer (CGRT).
The start timing of the fourth timer includes at least one of:
the timing D1, the first CG resource or the initial symbol of the first DG resource;
the timing D2, the first CG resource, or the last symbol of the first DG resource;
and the opportunity D3 is the first PDCCH receiving opportunity after the first uplink data transmission is completed.
In some embodiments, the terminal device completes retransmission of the first uplink data, and restarts the fourth timer.
The retransmission mechanism is the retransmission mechanism 3, the running mechanism of the timer in the terminal device may be as shown in fig. 7B, where the time t702 of the terminal device in the process of transmitting the uplink data 701 starts a third timer and a fourth timer, and starts a first timer at a fixed duration or at a time t703 after the second timer is overtime, the first timer is overtime at a time t704, the terminal device monitors the PDCCH between the time t703 and t704, the fourth timer is overtime at a time t706, when the fourth timer is overtime, the terminal device retransmits the uplink data 701, where the third timer is overtime at a time t 705.
Here, the terminal device restarts the fourth timer every time retransmission is made based on the timeout of the fourth timer.
In the embodiment of the present application, when the terminal device is executing the retransmission mechanism 2 or 3, if the terminal device receives a new transmission schedule or retransmission schedule for the first HARQ sent by the network device, or receives a first DFI indicating that data is correctly transmitted, the first timer is stopped, and the retransmission mechanism 2 or 3 is stopped; if a second DFI indicating that the data is not transmitted correctly and sent by the network equipment is received, the running first timer or fourth timer is stopped in advance based on the second DFI, and the next automatic retransmission is carried out.
In some embodiments, the terminal device completes transmission of the second uplink data by using a third DG resource, and starts the second timer, and after the second timer expires, the terminal device starts a fifth timer, where the HARQ process used by the third DG resource is a HARQ process different from the HARQ process used for the CG resource;
and during the running period of the fifth timer, the terminal equipment monitors the PDCCH scrambled by the first RNTI.
In this embodiment, the process used by the third DG resource is a third HARQ process, and the third HARQ process is not a HARQ process used by CG resource.
At this time, the multiple HARQ processes of the CG resource maintain a second timer and a first timer, and for processes outside the CG resource, the maintained timer for monitoring the PDCCH is a fifth timer, where the HARQ processes of different CG resources maintain the same second timer.
The starting time of the fifth timer is as follows: and the second timer after the time E and the third HARQ finish the transmission of the second uplink data is overtime.
The length of the fifth timer is configured by the network, and the fifth timer and the first timer may be configured in the same or different configurations.
Scene multiplexed in new-transfer control for first timer
In some embodiments, during the operation of the first timer, the terminal device does not perform a new transmission of the second uplink data.
Optionally, the first timer is an extended CGT, where the CGT is used for both PDCCH monitoring and new transmission control.
In some embodiments, a sixth timer is started; and during the time-out period of the sixth timer and the running period of the first timer, the terminal equipment monitors the PDCCH scrambled by the first RNTI.
Here, the start timing of the sixth timer is one of:
the timing F1, the first CG resource or the initial symbol of the first DG resource;
the timing F2, the first CG resource, or the last symbol of the first DG resource;
and the opportunity F3 is the first PDCCH receiving opportunity after the first uplink data transmission is completed.
Optionally, the starting time of the sixth timer is the same as the starting time of the first timer, the terminal device starts the first timer and the sixth timer, and monitors the PDCCH scrambled by the first RNTI during the time-out of the sixth timer and the running of the first timer.
In some embodiments, the configuration of the length of the sixth timer includes one of:
Dynamically configuring network equipment;
a predefined fixed length.
Optionally, the terminal device may monitor the PDCCH scrambled by the first RNTI after starting the first timer for a fixed period of time.
In some embodiments, during operation of the sixth timer, the terminal device does not listen to the PDCCH scrambled by the first RNTI.
The terminal equipment starts a first timer and a sixth timer, does not monitor the PDCCH scrambled by the first RNTI during the operation of the first timer and the sixth timer, and monitors the PDCCH scrambled by the first RNTI after the timeout of the sixth timer. The sixth timer is used for controlling the terminal equipment to not monitor the PDCCH scrambled by the first RNTI.
In some embodiments, the first timer is restarted when the terminal device receives a retransmission schedule or a new transmission schedule for the first HARQ process during the first timer running.
And during the operation of the first timer, the terminal receives the retransmission schedule, restarts the first timer, and uses the first HARQ process to retransmit the first uplink data based on the second DG resource scheduled by the retransmission schedule.
And during the operation of the first timer, the terminal equipment receives a new transmission schedule aiming at the first HARQ process, restarts the first timer, and uses the first HARQ process to carry out new transmission of the second uplink data based on DG resources scheduled by the new transmission schedule.
In some embodiments, the terminal device starts a seventh timer at the same time as the sixth timer; and the terminal equipment monitors the PDCCH scrambled by the first RNTI during the running of the seventh timer and the first timer when the sixth timer is overtime.
Here, the duration of the first timer is greater than the duration of the sixth timer and the duration of the seventh timer, the duration of the seventh timer being greater than the duration of the sixth timer. The terminal equipment controls the non-monitoring of the PDCCH scrambled by the first RNTI based on the first timer and the sixth timer, and controls the monitoring of the PDCCH scrambled by the first RNTI based on the first timer and the seventh timer.
The start timing of the seventh timer is the same as the start timing of the sixth timer.
As shown in fig. 7C, the terminal device starts the first timer, the sixth timer, and the seventh timer at time t702 in the transmission process of the uplink data 701, the sixth timer times out at time t707, the seventh timer times out at time t708, the terminal device does not monitor the PDCCH between time t702 and time t707, and monitors the PDCCH between time t707 and time t 708.
In fig. 6C, the first timer and the sixth timer are started at t702 at the same time, and in practical applications, the times of the first timer and the sixth timer may be different.
In the case that the terminal device controls the monitoring of the PDCCH by applying the seventh timer, the retransmission mechanism of the terminal device is:
retransmission mechanism 4: and when the seventh timer is overtime or stops running, the terminal equipment utilizes a second CG resource to retransmit the first uplink data, and the second CG resource corresponds to the first HARQ process.
Here, the retransmission of the first uplink data is controlled based on the seventh timer, and the terminal device performs the retransmission of the first uplink data in the case where the first timer is operated and the seventh timer is timed out.
As shown in fig. 7D, in the timer running mechanism shown in fig. 7C, retransmission of the uplink data 708 is performed after time t 708.
In some embodiments, the terminal device receives a first DFI indicating correct receipt of data, and stops the first timer and the seventh timer; or the terminal equipment receives a second DFI indicating that the data is not received correctly, and the seventh timer is stopped.
And stopping the seventh timer before the terminal equipment receives the indication first DFI or the second DFI, and carrying out new transmission of the second uplink data or retransmission of the first uplink data based on the received new transmission schedule or retransmission schedule, wherein the monitoring of the PDCCH scrambled by the first RNTI is not carried out at the moment.
The terminal device also stops the first timer in case the first DFI is received.
In an example, the terminal device receives the first DFI, and performs a new transmission of the second uplink data based on the received first DFI.
In an example, the terminal device receives the second DFI, and then retransmits the first uplink data based on the received second DFI.
In the embodiment of the present application, when the terminal device is executing the retransmission mechanism 4, if the terminal device receives a new transmission schedule or retransmission schedule for the first HARQ sent by the network device, or receives a first DFI indicating that data is correctly transmitted, the first timer and the seventh timer are stopped, and the retransmission mechanism 4 is stopped; if a second DFI indicating that the data is not transmitted correctly and sent by the network equipment is received, the running seven timers are stopped in advance based on the second DFI, and the next automatic retransmission is carried out.
In some embodiments, the terminal device completes transmission of the second uplink data by using a third DG resource, and starts the sixth timer; after the sixth timer is overtime, the terminal equipment starts an eighth timer, and the HARQ process used by the third DG resource is different from the HARQ process used for the CG resource; and during the running period of the eighth timer, the terminal equipment monitors the PDCCH scrambled by the first RNTI.
And during the running period of the eighth timer, the terminal equipment monitors the PDCCH scrambled by the first RNTI.
In this embodiment, the process used by the third DG resource is a third HARQ process, and the third HARQ process is not a HARQ process used by CG resource.
At this time, the multiple HARQ processes of the CG resource maintain a second timer and a first timer, and for processes outside the CG resource, the maintained timer for monitoring the PDCCH is an eighth timer, where the HARQ processes of different CG resources maintain the same second timer.
The starting time of the eighth timer is as follows: and the timing G and the second timer after the third HARQ finishes the transmission of the second uplink data are overtime.
The length of the eighth timer is configured by the network, and the eighth timer and the first timer may be configured in the same or different configurations.
In some embodiments, the terminal device in radio resource control inactive state triggers the CG-SDT procedure if a first condition is met.
In some embodiments, the first condition includes at least one of:
all data to be transmitted belong to radio bearers which allow triggering SDT, and the transmission quantity of the data to be transmitted is not more than a data quantity threshold configured by a network;
The reference signal received power (Reference Singal Receiving Power, RSRP) measurement is greater than or equal to the network configured RSRP threshold;
CG resources are present on the selected carrier and synchronization signal block (: synchronization Signal Block, SSB);
TA is active.
Next, a control method provided in the embodiment of the present application is further described.
Example 1
Introducing a first timer, a second timer and the maximum retransmission times, and controlling new transmission or retransmission and PDCCH monitoring in the CG-SDT process.
1. The UE in rrc_inactive state triggers the CG-SDT procedure if a first condition is met, the first condition at least comprising:
a) All data to be transmitted belong to radio bearers which allow triggering SDT, and the data quantity to be transmitted is not more than a data quantity threshold configured by a network;
b) The RSRP measurement result is not smaller than the RSRP threshold of the network configuration;
c) CG resources are present on the selected carrier and SSB;
d) TA is valid, i.e. TAT is in run and/or RSRP variation does not exceed a pre-configured threshold.
2. In the CG-SDT process, when the UE completes the first uplink data transmission (new transmission or retransmission) by utilizing CG/DG resources, the actions of the UE comprise:
-starting a second timer, during which the terminal does not listen to the PDCCH scrambled by the first RNTI, and starting the first timer when the second timer expires. The length of the second timer may be dynamically configured by the network or may be a predefined fixed length.
During the first timer run, the terminal listens to the PDCCH scrambled by the first RNTI. The first RNTI is one or more of a C-RNTI, a CS-RNTI, or other RNTI configured for CG-SDT.
The terminal device may start the first timer after the second timer times out or after a fixed time length after the transmission of the first uplink data is completed on the CG/DG resource.
Note that: each HARQ process maintains a first timer and a second timer.
3. For a certain HARQ process, if the terminal receives a new transmission or retransmission schedule for the HARQ process during the operation period of the first timer, the terminal stops the first timer.
As shown in fig. 8, the terminal device starts a first timer at time t801 and monitors the PDCCH scrambled by the first RNTI during the operation of the first timer, and stops the first timer when receiving a new transmission or retransmission schedule sent by the network device at time t 802. The terminal device uses CG resource or DG resource with HARQ process ID X to transmit uplink data 803.
4. For a certain HARQ process, during the second timer running period, the terminal may not utilize CG resources with the same HARQ process for data transmission.
As shown in fig. 9, the terminal device uses CG resource or DG resource having HARQ process ID X to perform transmission of uplink data 803. And during the operation of the second timer, the terminal equipment does not use CG resources or DG resources with the HARQ process ID of X for uplink data transmission, and after the second timer is overtime, uses CG resources or DG resources with the HARQ process ID of X for uplink data transmission. The uplink data 804 may be a retransmission of the uplink data 803 or a new transmission.
5. In addition, the network may configure the terminal with a first number of transmissions to indicate whether the terminal may automatically transmit using CG resources with the same HARQ process.
The implementation mode is as follows: if the network configures the first number of transmissions for the terminal, or the value of the first number of transmissions is greater than or equal to 1, the terminal initializes a COUNTER for each HARQ process configured for the CG, e.g., counter=0. Updating the COUNTER value after the terminal completes data new transmission by using CG resources, wherein counter=counter+1, and simultaneously starting a first timer and a second timer according to description in 2:
-if the initial value < COUNTER < first number of transmissions, when the first timer expires or is in an inactive state, the terminal performs an automatic retransmission using CG resources with the same HARQ process, while updating the COUNTER value;
When counter=first transmission number or counter=first transmission number +1, when the first timer expires or is in an inactive state, the terminal performs a new data transmission using CG resources having the same HARQ process while resetting the COUNTER.
As shown in fig. 10, the terminal device performs the first transmission of the uplink data 803 using the CG resource having the HARQ process with ID X, at this time, COUNTER is 0, and after the first timer expires, performs the first retransmission of the uplink data 803 using the CG resource having the HARQ process with ID X, and the value of COUNTER is added to 1, and after the first timer expires again, performs the second retransmission of the uplink data 803 using the CG resource having the HARQ process with ID X, and the value of COUNTER is added to 1 to 2.
6. If the terminal receives the DFI for indicating the correct data reception during the operation of the first timer, stopping the first timer and resetting the counter; if the terminal receives the DFI indicating that the data is not correctly received, the first timer is stopped.
Example two
Extending the functionality of CGT, in addition to controlling new and retransmission, simultaneously controlling PDCCH listening
1. The UE in rrc_inactive state triggers the CG-SDT procedure if a first condition is met, the first condition at least comprising:
a) All data to be transmitted belong to radio bearers which allow triggering SDT, and the data quantity to be transmitted is not more than a data quantity threshold configured by a network;
b) The RSRP measurement result is not smaller than the RSRP threshold of the network configuration;
c) CG resources are present on the selected carrier and SSB;
d) TA is valid, i.e. TAT is in run and/or RSRP variation does not exceed a pre-configured threshold.
2. In the CG-SDT process, when the UE completes the first uplink data transmission (new transmission/retransmission) by using CG resources or DG resources, the HARQ process used by the CG resources or DG resources is configured as an HARQ process for CG, and the UE acts include:
a) And starting a first timer, wherein during the operation period of the first timer, the terminal cannot utilize CG resources which have the same HARQ process as CG resources used for the first uplink data transmission to carry out uplink data new transmission, and the first timer can be CGT in the prior art.
b) And starting a sixth timer, wherein the terminal does not monitor the PDCCH scrambled by the first RNTI in the operation period of the sixth timer, and monitors the PDCCH scrambled by the first RNTI in the operation period of the first timer after the second timer is overtime. The length of the sixth timer can be dynamically configured by the network, or can be a predefined fixed length; the first RNTI is one or more of a C-RNTI, a CS-RNTI, or other RNTI configured for CG-SDT.
As shown in fig. 11, the terminal device starts a first timer in the transmission process of the first uplink data 1101, and monitors the PDCCH at a time t1102 after a fixed duration or a sixth timer times out until a time t1103, where the first timer times out at the time t1103, and after the first timer times out, the terminal device performs a new transmission of the uplink data 1104.
3. If the terminal receives retransmission scheduling sent by the network in the operation period of the first timer or receives new transmission scheduling of the same HARQ process by the network side in the operation period of the first timer, the terminal restarts the first timer;
4. in the CG-SDT process, when the UE completes the second uplink data transmission (new transmission/retransmission) using DG resources, the HARQ process used by the DG resources is different from the HARQ process configured for CG resources, and the UE acts include:
-the terminal starts a sixth timer, during which the terminal does not monitor the PDCCH scrambled by the first RNTI; after the sixth timer is overtime, the terminal starts an eighth timer, and in the running period of the eighth timer, the terminal monitors the PDCCH scrambled by the first RNTI. The eighth timer length is configured by the network.
5. The network can configure the terminal to utilize CG resource to carry out automatic retransmission, and the realization mode is as follows:
-the terminal starts a seventh timer and starts a sixth timer each time the terminal completes data transmission using CG resources, and during the sixth timer operation period, the terminal does not monitor PDCCH scrambled by the first RNTI; and after the sixth timer is overtime, the terminal monitors the PDCCH scrambled by the first RNTI during the operation period of the seventh timer.
When the seventh timer expires or stops running, but the first timer is in an operating state, the terminal uses CG resources with the same HRAQ procedure for automatic retransmission.
8. Stopping the first timer and the seventh timer if the terminal receives the DFI indicating correct reception of the data during the operation of the seventh timer or the first timer; if the terminal receives the DFI indicating that the data is not correctly received, stopping the seventh timer.
Example III
Multiplexing CGT, introducing a first timer and a second timer to control PDCCH monitoring behavior and automatic retransmission after each transmission.
1. The UE in rrc_inactive state triggers the CG-SDT procedure if a first condition is met, the first condition at least comprising:
a) All data to be transmitted belong to radio bearers which allow triggering SDT, and the data quantity to be transmitted is not more than the data quantity threshold of network configuration;
b) The RSRP measurement result is not smaller than the RSRP threshold of the network configuration;
c) CG resources are present on the selected carrier and SSB;
d) TA is valid, i.e. TAT is in run and/or RSRP variation does not exceed a pre-configured threshold.
2. In the CG-SDT process, when the UE completes the first uplink data transmission (new transmission/retransmission) by using CG resources or DG resources, the HARQ process used by the CG resources or DG resources is configured as an HARQ process for CG, and the UE acts include:
a) Starting a third timer, during the operation of the third timer, the terminal cannot utilize CG resources having the same HARQ process as CG resources used for the first uplink data transmission to perform uplink data new transmission, i.e. as with CGT in the prior art.
b) And starting a second timer, wherein the terminal does not monitor the PDCCH scrambled by the first RNTI in the operation period of the second timer, starting the first timer by the terminal after the second timer is overtime, and monitoring the PDCCH scrambled by the first RNTI by the terminal in the operation period of the first timer. The length of the third timer can be dynamically configured by the network, or can be a predefined fixed length, if the second timer is a fixed length, the terminal can start the first timer after the fixed time length; the first RNTI is one or more of a C-RNTI, a CS-RNTI, or other RNTI configured for CG-SDT. The length of the first timer is configured by the network.
As shown in fig. 12, the terminal device starts a third timer at time t1202 in the transmission process of the uplink data 1201, and monitors the PDCCH at time t1203 after the fixed duration or the second timer times out until time t1204, where the first timer times out at time t1204, the third timer times out at time t1205, and after the third timer times out, the terminal device performs new transmission of the uplink data 1206.
3. If the terminal receives retransmission scheduling sent by the network in the operation period of the first timer or the terminal receives new transmission scheduling of the same HARQ process by the network side in the operation period of the first timer, the terminal restarts the first timer, and if the third timer is in an operation state, the third timer is stopped.
4. In the CG-SDT procedure, when the UE completes the second uplink data transmission (new transmission/retransmission) using DG resources, the HARQ process used by the DG is different from the HARQ process configured for CG resources, and the UE acts include:
-the terminal starts a second timer, during which the terminal does not monitor the PDCCH scrambled by the first RNTI; after the second timer is overtime, the terminal starts a fifth timer, and monitors the PDCCH scrambled by the first RNTI in the operation period of the fifth timer. The length of the fifth timer is configured by the network, and the fifth timer and the first timer can be configured in the same way or in different ways.
5. The network may configure an automatic retransmission mechanism for the terminal, and the implementation manner includes:
when the third timer expires or is not running, but the first timer is in an active state, the terminal uses CG resources with the same HARQ process for automatic retransmission.
As shown in fig. 13, the terminal device starts a third timer at time t1302 in the transmission process of the uplink data 1301, starts a first timer at time t1303 after a fixed duration or the second timer times out, the first timer times out at time t1304, and monitors the PDCCH between time t1303 and t1304, wherein the first timer times out and the third timer runs, the terminal device performs retransmission of the uplink data 1301, starts the first timer at time t1305 after performing retransmission of the uplink data 1301, and monitors the PDCCH during the first timer runs until the first timer times out at time t1306, and the third timer times out at time t 1307.
Example IV
Multiplexing CGT and CGRT, introducing a first timer and a second timer to control PDCCH monitoring behavior of each transmission.
1. The UE in rrc_inactive state triggers the CG-SDT procedure if a first condition is met, the first condition at least comprising:
a) All data to be transmitted belong to radio bearers which allow triggering SDT, and the data quantity to be transmitted is not more than a data quantity threshold configured by a network;
b) The RSRP measurement result is not smaller than the RSRP threshold of the network configuration;
c) CG resources are present on the selected carrier and SSB;
d) TA is valid, i.e. TAT is in run and/or RSRP variation does not exceed a pre-configured threshold.
2. In the CG-SDT process, when the UE completes the first uplink data transmission (new transmission/retransmission) by using CG resources or DG resources, the HARQ process used by the CG or DG is configured as an HARQ process for the CG, and the UE acts include:
a) Starting a third timer, during the operation of the third timer, the terminal cannot utilize CG resources having the same HARQ process as CG resources used for the first uplink data transmission to perform uplink data new transmission, i.e. as with CGT in the prior art.
b) And starting a second timer, wherein the terminal does not monitor the PDCCH scrambled by the first RNTI in the operation period of the second timer, starting the first timer by the terminal after the second timer is overtime, and monitoring the PDCCH scrambled by the first RNTI by the terminal in the operation period of the first timer. The length of the second timer can be dynamically configured by the network, and can be a predefined fixed length, if the second timer is a fixed length, the terminal can start a third timer after the fixed time length; the first RNTI is one or more of a C-RNTI, a CS-RNTI, or other RNTI configured for CG-SDT. The length of the first timer is configured by the network.
As shown in fig. 14, the terminal device starts a third timer at time t1402 in the transmission process of the uplink data 1401, and monitors the PDCCH at time t1403 after the fixed duration or the second timer times out until time t1404, where the first timer times out at time t1404, the third timer times out at time t1405, and after the third timer times out, the terminal device performs new transmission of the uplink data 1406.
3. If the terminal receives retransmission scheduling sent by the network in the third timer operation period, or the terminal receives new transmission scheduling of the same HARQ process by the network side in the third timer operation period, the terminal restarts the third timer, and if the first timer is in an operation state, the first timer is stopped;
4. in the CG-SDT process, when the UE completes the second uplink data transmission (new transmission/retransmission) using DG resources, the HARQ process used by the DG resources is different from the HARQ process configured for CG resources, and the UE acts include:
-the terminal starts a second timer, during which the terminal does not monitor the PDCCH scrambled by the first RNTI; after the second timer is overtime, the terminal starts a fifth timer, and monitors the PDCCH scrambled by the first RNTI in the operation period of the fifth timer. The length of the fifth timer is configured by the network, and the fifth timer and the first timer can be configured in the same way or in different ways.
5. The network may configure an automatic retransmission mechanism for the terminal, and the implementation manner includes:
the terminal starts a fourth timer each time the data transmission is completed using CG resources, and when the fourth timer expires and the first timer is in an operating state, the terminal may perform automatic retransmission using CG resources having the same HARQ process as the current CG resource transmission, i.e. the fourth timer multiplexes cg_ Retransmission timer in the prior art.
The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in detail. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be considered as disclosed herein. For example, the various embodiments and/or technical features of the various embodiments described herein may be combined with any other of the prior art without conflict, and the combined technical solutions should also fall within the scope of protection of the present application.
It should be further understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. Further, in the embodiment of the present application, the terms "downstream", "upstream" and "sidestream" are used to indicate a transmission direction of signals or data, where "downstream" is used to indicate that the transmission direction of signals or data is a first direction from a station to a user equipment of a cell, "upstream" is used to indicate that the transmission direction of signals or data is a second direction from the user equipment of the cell to the station, and "sidestream" is used to indicate that the transmission direction of signals or data is a third direction from the user equipment 1 to the user equipment 2. For example, "downstream signal" means that the transmission direction of the signal is the first direction. In addition, in the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, which means that three relationships may exist. Specifically, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Fig. 15 is a schematic structural composition diagram of a terminal device provided in an embodiment of the present application, as shown in fig. 15, a terminal device 1500 includes:
a first starting unit 1501 configured to complete first uplink data transmission using a first CG resource or a first DG resource in a CG-SDT process, and start a first timer;
a monitoring unit 1502 configured to monitor, during the operation of the first timer, a physical downlink control channel PDCCH scrambled by a first radio network temporary identifier RNTI; the first RNTI is an RNTI configured for the CG-SDT procedure.
In some embodiments, the first timer is started at one of the following:
after the fixed duration of the first uplink data transmission is completed;
the second timer times out.
In some embodiments, the start timing of the second timer includes one of:
at a first symbol position of the first CG resource;
at the last symbol position of the first CG resource;
and completing the receiving opportunity of the first PDCCH after the first uplink data transmission.
In some embodiments, the configuration of the length of the second timer includes one of:
dynamically configuring network equipment;
a predefined fixed length.
In some embodiments, the listening unit 1502 is further configured to not listen to the PDCCH scrambled by the first RNTI during operation of the second timer.
In some embodiments, the terminal device 1500 further comprises:
and the first data transmission unit is configured to not utilize a second CG resource to perform data transmission during the operation period of the first timer, wherein the second CG resource corresponds to the first HARQ process, and the first timer corresponds to the first HARQ process.
In some embodiments, the terminal device 1500 further comprises:
and the first control unit is configured to stop the first timer when receiving a new transmission or retransmission schedule for the first HARQ process, and perform new transmission of second uplink data or retransmission of the first uplink data based on the new transmission or retransmission schedule.
In some embodiments, the terminal device 1500 further comprises:
and the second control unit is configured to stop the first timer when receiving a first Downlink Feedback Indication (DFI) indicating that the data is correctly received or a second DFI indicating that the data is not correctly received, and to perform new transmission of second uplink data or retransmission of the first uplink data based on the first DFI or the second DFI.
In some embodiments, the terminal device 1500 further comprises:
and the first retransmission unit is configured to perform new transmission of second uplink data or retransmission of the first uplink data based on the second CG resource when the first timer is overtime or not running.
In some embodiments, the first retransmission unit is further configured to:
and carrying out new transmission of the second uplink data or retransmission of the first uplink data based on the first transmission times.
In some embodiments, the first retransmission unit is further configured to:
when the first count value is smaller than the first transmission times or the first count value is smaller than the second transmission times, and the previous transmission of the first HARQ process occurs on CG resources, the retransmission of the first uplink data is carried out by utilizing the second CG resources, wherein the second transmission times are equal to the first transmission times plus 1, and the first count value plus 1; the first count value is the number of times that the terminal equipment transmits the first uplink data through the first HARQ process, and the second CG resource corresponds to the first HARQ process;
or when the first count value is equal to the first transmission times or the first count value is equal to the second transmission times, performing new transmission of second uplink data by using a second CG resource, and resetting the first count value.
In some embodiments, the first transmission number is configured in a manner that:
and configuring network equipment.
In some embodiments, the terminal device 1500 further comprises:
a second starting unit configured to complete the first uplink data transmission by using the first CG resource or the first DG resource, and start a third timer;
and the new transmission unit is configured to not utilize a second CG resource to carry out new transmission of second uplink data during the operation period of the third timer, wherein the second CG resource corresponds to the first HARQ process.
In some embodiments, the terminal device 1500 further comprises:
and a first restarting unit configured to restart the third timer when receiving a retransmission schedule or a new transmission schedule for the first HARQ process during operation of the third timer.
In some embodiments, the terminal device 1500 further comprises:
and a third control unit configured to stop the first timer when a retransmission schedule or a new transmission schedule for the first HARQ process is received during operation of the third timer.
In some embodiments, the terminal device 1500 further comprises:
and the second retransmission unit is configured to perform retransmission of the first uplink data by using a second CG resource when the first timer is overtime or stops running and the previous transmission of the first HARQ process occurs on the CG resource, wherein the third timer is in an running state, and the second CG resource corresponds to the first HARQ process.
In some embodiments, the terminal device 1500 further comprises:
and the third retransmission unit is configured to utilize the second CG resource to retransmit the first uplink data when the fourth timer is overtime, the third timer is in an operation state, and the previous transmission of the first HARQ process occurs on the CG resource, wherein the second CG resource corresponds to the first HARQ process, and the second CG resource corresponds to the first HARQ process.
In some embodiments, the terminal device 1500 further comprises:
and a second restarting unit configured to restart the fourth timer after the retransmission of the first uplink data is completed.
In some embodiments, the terminal device 1500 further comprises:
the third starting unit is configured to finish transmission of second uplink data by using third DG resources and start the second timer;
a fourth starting unit configured to start a fifth timer after the second timer expires, where the HARQ process used by the third DG resource is a HARQ process different from the HARQ process used for the CG resource;
and the monitoring unit is configured to monitor the PDCCH scrambled by the first RNTI during the operation of the fifth timer.
In some embodiments, the terminal device 1500 further comprises:
And the second data transmission unit is configured to not perform new transmission of second uplink data during the operation of the first timer.
In some embodiments, the terminal device 1500 further comprises:
a fifth starting unit configured to start the sixth timer;
and the monitoring unit is configured to monitor the PDCCH scrambled by the first RNTI during the time-out of the sixth timer and the running of the first timer.
In some embodiments, the configuration of the length of the sixth timer includes one of:
dynamically configuring network equipment;
a predefined fixed length.
In some embodiments, the listening unit 1501 is further configured not to listen to the PDCCH scrambled by the first RNTI during operation of the sixth timer.
In some embodiments, the terminal device 1500 further comprises:
and a third restarting unit configured to restart the first timer when receiving a retransmission schedule or a new transmission schedule for the first HARQ process during operation of the first timer.
In some embodiments, the terminal device 1500 further comprises:
a sixth starting unit configured to start a seventh timer while starting the sixth timer;
the monitoring unit is configured to monitor the PDCCH scrambled by the first RNTI during the running of the seventh timer and the first timer when the sixth timer is overtime.
In some embodiments, the terminal device 1500 further comprises:
and a fourth retransmission unit configured to perform retransmission of the first uplink data by using a second CG resource when the seventh timer expires or stops running, where the second CG resource corresponds to the first HARQ process.
In some embodiments, the terminal device 1500 further comprises:
a fourth control unit configured to receive a first DFI indicating correct reception of data, and stop the first timer and the seventh timer; or receiving a second DFI indicating that the data was not received correctly, stopping the seventh timer.
In some embodiments, the terminal device 1500 further comprises:
a seventh starting unit configured to complete transmission of the second uplink data by using a third DG resource, and start the sixth timer;
an eighth starting unit configured to start an eighth timer after the sixth timer expires, wherein the HARQ process used by the third DG resource is a HARQ process different from the HARQ process used for the CG resource;
and the monitoring unit is configured to monitor the PDCCH scrambled by the first RNTI during the operation of the eighth timer.
In some embodiments, the terminal device in radio resource control inactive state triggers the CG-SDT procedure if a first condition is met.
In some embodiments, the first condition includes at least one of:
all data to be transmitted belong to radio bearers which allow triggering SDT, and the transmission quantity of the data to be transmitted is not more than a data quantity threshold configured by a network;
the RSRP measurement result of the reference signal received power is larger than or equal to the RSRP threshold of the network configuration;
CG resources exist on the selected carrier and synchronization signal block SSB;
the time advance TA is valid.
It should be understood by those skilled in the art that the above description of the terminal device according to the embodiment of the present application may be understood with reference to the description of the control method according to the embodiment of the present application.
Fig. 16 is a schematic structural diagram of a communication device 1600 provided in an embodiment of the present application. The communication device may be a terminal device. The communication device 1600 shown in fig. 16 includes a processor 1610, and the processor 1610 may call and execute a computer program from a memory to implement the methods in embodiments of the present application.
Optionally, as shown in fig. 16, the communication device 1600 may also include a memory 1620. Wherein the processor 1610 may invoke and run a computer program from the memory 1620 to implement the methods in embodiments of the present application.
Wherein memory 1620 may be a separate device from processor 1610 or may be integrated within processor 1610.
Optionally, as shown in fig. 16, the communication device 1600 may further include a transceiver 1630, and the processor 1610 may control the transceiver 1630 to communicate with other devices, in particular, may send information or data to other devices, or receive information or data sent by other devices.
Among other things, transceiver 1630 may include a transmitter and a receiver. Transceiver 1630 may further include an antenna, the number of which may be one or more.
Optionally, the communication device 1600 may be specifically a network device in the embodiment of the present application, and the communication device 1600 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.
Optionally, the communication device 1600 may be specifically a mobile terminal/terminal device in the embodiment of the present application, and the communication device 1600 may implement corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which are not described herein for brevity.
Fig. 17 is a schematic structural diagram of a chip of an embodiment of the present application. Chip 1700 shown in fig. 17 includes a processor 1710, and processor 1710 may call and run a computer program from memory to implement the methods in embodiments of the present application.
Optionally, as shown in fig. 17, chip 1700 may also include memory 1720. Wherein the processor 1710 may invoke and run a computer program from the memory 1720 to implement the methods in embodiments of the present application.
Wherein the memory 1720 may be a separate device from the processor 1710 or may be integrated in the processor 1710.
Optionally, the chip 1700 may also include an input interface 1730. Wherein the processor 1710 may control the input interface 1730 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.
Optionally, the chip 1700 may also include an output interface 1740. Wherein the processor 1710 may control the output interface 1740 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.
Optionally, the chip may be applied to a network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.
Optionally, the chip may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.
Fig. 18 is a schematic block diagram of a communication system 1800 provided by an embodiment of the present application. As shown in fig. 18, the communication system 1800 includes a terminal device 1810 and a network device 1820.
The terminal device 1810 may be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1820 may be used to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.
It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.
It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
It should be understood that the above memory is exemplary but not limiting, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.
Embodiments of the present application also provide a computer-readable storage medium for storing a computer program.
Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, which is not described herein for brevity.
Embodiments of the present application also provide a computer program product comprising computer program instructions.
Optionally, the computer program product may be applied to a mobile terminal/terminal device in an embodiment of the present application, and the computer program instructions cause a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which is not described herein for brevity.
The embodiment of the application also provides a computer program.
Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiments of the present application, where the computer program when run on a computer causes the computer to execute corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, and for brevity, will not be described herein.
Those of ordinary skill in the art will 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 solution. 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 present application.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, 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 solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (65)
- A control method, the method comprising:in the process of configuring authorized small data transmission CG-SDT, the terminal equipment utilizes a first CG resource or a first DG resource to complete first uplink data transmission, and starts a first timer;during the operation of the first timer, the terminal equipment monitors a physical downlink control channel PDCCH scrambled by a first radio network temporary identifier RNTI; the first RNTI is an RNTI configured for the CG-SDT procedure.
- The method of claim 1, wherein the start opportunity of the first timer comprises one of:after the fixed duration of the first uplink data transmission is completed;the second timer times out.
- The method of claim 2, wherein the start opportunity of the second timer comprises one of:at a first symbol position of the first CG resource or the first DG resource;at a last symbol position of the first CG resource or the first DG resource;and completing the receiving opportunity of the first PDCCH after the first uplink data transmission.
- A method according to claim 2 or 3, wherein the configuration of the length of the second timer comprises one of:Dynamically configuring network equipment;a predefined fixed length.
- The method according to any of claims 2 to 4, wherein during operation of the second timer, the terminal device does not listen to the first RNTI scrambled PDCCH.
- The method according to any of claims 1 to 5, wherein the first timer corresponds to the first HARQ process, and during operation of the first timer, the terminal device does not utilize a second CG resource for data transmission, the second CG resource corresponding to the first HARQ process.
- The method of claim 6, wherein the method further comprises:and stopping the first timer when the terminal equipment receives new transmission or retransmission scheduling aiming at the first HARQ process, and carrying out new transmission of second uplink data or retransmission of the first uplink data based on the new transmission or retransmission scheduling.
- The method of claim 6, wherein the method further comprises:and when the terminal equipment receives a first Downlink Feedback Indication (DFI) indicating that the data is correctly received or a second DFI indicating that the data is not correctly received, stopping the first timer, and carrying out new transmission of second uplink data or retransmission of the first uplink data based on the first DFI or the second DFI.
- The method of any one of claims 1 to 8, wherein the method further comprises:and when the first timer is overtime or not operated, the terminal equipment performs new transmission of second uplink data or retransmission of the first uplink data based on the second CG resource, wherein the second CG resource corresponds to the first HARQ process.
- The method of claim 9, wherein the terminal device performs new transmission of second uplink data or retransmission of the first uplink data based on the second CG resource, including:and the terminal equipment performs new transmission of the second uplink data or retransmission of the first uplink data based on the first transmission times.
- The method of claim 10, wherein the terminal device performs new transmission of the second uplink data or retransmission of the first uplink data based on a first number of transmissions, comprising:when the first count value is smaller than the first transmission times or the first count value is smaller than the second transmission times, and the previous transmission of the first HARQ process occurs on CG resources, the terminal equipment utilizes the second CG resources to retransmit the first uplink data, wherein the second transmission times are equal to the first transmission times plus 1, and the first count value plus 1; the first count value is the number of times that the terminal equipment transmits the first uplink data through the first HARQ process, and the second CG resource corresponds to the first HARQ process;Or when the first count value is equal to the first transmission times or the first count value is equal to the second transmission times, the terminal equipment uses a second CG resource to carry out new transmission of second uplink data, and the first count value is reset.
- The method according to claim 10 or 11, wherein the first transmission number is configured in a manner that:and configuring network equipment.
- The method of any one of claims 1 to 5, wherein the method further comprises:the terminal equipment completes the first uplink data transmission by utilizing the first CG resource or the first DG resource, and starts a third timer;and during the operation of the third timer, the terminal equipment does not utilize a second CG resource to carry out new transmission of second uplink data, wherein the second CG resource corresponds to the first HARQ process.
- The method of claim 13, wherein the third timer is restarted when the terminal device receives a retransmission schedule or a new transmission schedule for the first HARQ process during operation of the third timer.
- The method according to claim 13 or 14, wherein during operation of the third timer, the terminal device receives a retransmission schedule or a new transmission schedule for the first HARQ process, stopping the first timer.
- The method according to any of claims 13 to 15, wherein when the first timer expires or ceases to run, the third timer is in an operating state and a previous transmission of a first HARQ process occurs on a CG resource, the terminal device making use of a second CG resource for retransmission of the first uplink data, the second CG resource corresponding to the first HARQ process.
- The method according to any of claims 13 to 16, wherein when a fourth timer expires, the third timer is in an active state, and a previous transmission of a first HARQ process occurs on a CG resource, the terminal device performs retransmission of the first uplink data using the second CG resource, the second CG resource corresponding to the first HARQ process.
- The method of claim 17, wherein the method further comprises:and the terminal equipment completes retransmission of the first uplink data and restarts the fourth timer.
- The method of any of claims 13 to 18, wherein the method further comprises:the terminal equipment completes the transmission of second uplink data by utilizing a third DG resource and starts the second timer;After the second timer is overtime, the terminal equipment starts a fifth timer, and the HARQ process used by the third DG resource is different from the HARQ process used for the CG resource;and during the running period of the fifth timer, the terminal equipment monitors the PDCCH scrambled by the first RNTI.
- The method of claim 1, wherein the terminal device does not make a new transmission of second uplink data during the first timer running.
- The method of claim 20, wherein the method further comprises:starting a sixth timer; and during the time-out period of the sixth timer and the running period of the first timer, the terminal equipment monitors the PDCCH scrambled by the first RNTI.
- The method of claim 21, wherein the configuration of the length of the sixth timer comprises one of:dynamically configuring network equipment;a predefined fixed length.
- The method of claim 21 or 22, wherein the terminal device does not listen to the first RNTI-scrambled PDCCH during operation of the sixth timer.
- The method according to any of claims 21 to 23, wherein the first timer is restarted when the terminal device receives a retransmission schedule or a new transmission schedule for the first HARQ process during operation of the first timer.
- The method of any one of claims 21 to 24, wherein the method further comprises:the terminal equipment starts a seventh timer while starting the sixth timer; and the terminal equipment monitors the PDCCH scrambled by the first RNTI during the running of the seventh timer and the first timer when the sixth timer is overtime.
- The method of claim 25, wherein the terminal device performs retransmission of the first uplink data using a second CG resource when the seventh timer expires or ceases to operate, the second CG resource corresponding to the first HARQ process.
- The method of claim 25 or 26, wherein the method further comprises:the terminal equipment receives a first DFI indicating correct data reception, and stops the first timer and the seventh timer; or (b)And the terminal equipment receives a second DFI indicating that the data is not received correctly, and stops the seventh timer.
- The method of any one of claims 21 to 27, wherein the method further comprises:the terminal equipment completes the transmission of the second uplink data by utilizing a third DG resource and starts the sixth timer;After the sixth timer is overtime, the terminal equipment starts an eighth timer, and the HARQ process used by the third DG resource is different from the HARQ process used for the CG resource;and during the running period of the eighth timer, the terminal equipment monitors the PDCCH scrambled by the first RNTI.
- The method according to any of claims 1 to 28, wherein the terminal device in radio resource control, inactive state triggers the CG-SDT procedure if a first condition is met.
- The method of claim 29, wherein the first condition comprises at least one of:all data to be transmitted belong to radio bearers which allow triggering SDT, and the transmission quantity of the data to be transmitted is not more than a data quantity threshold configured by a network;the RSRP measurement result of the reference signal received power is larger than or equal to the RSRP threshold of the network configuration;CG resources exist on the selected carrier and synchronization signal block SSB;the time advance TA is valid.
- A terminal device, the terminal device comprising:the first starting unit is configured to complete first uplink data transmission by utilizing first CG resources or first DG resources in the process of configuring authorized small data transmission CG-SDT, and starts a first timer;A monitoring unit, configured to monitor a physical downlink control channel PDCCH scrambled by a first radio network temporary identifier RNTI during the operation of the first timer; the first RNTI is an RNTI configured for the CG-SDT procedure.
- The terminal device of claim 31, wherein the start timing of the first timer comprises one of:after the fixed duration of the first uplink data transmission is completed;the second timer times out.
- The terminal device of claim 32, wherein the start timing of the second timer comprises one of:at a first symbol position of the first CG resource or the first DG resource;at a last symbol position of the first CG resource or the first DG resource;and completing the receiving opportunity of the first PDCCH after the first uplink data transmission.
- The terminal device of claim 32 or 33, wherein the configuration of the length of the second timer comprises one of:dynamically configuring network equipment;a predefined fixed length.
- The terminal device according to any of claims 32 to 34, wherein,the monitoring unit is further configured to not monitor the PDCCH scrambled by the first RNTI during the operation of the second timer.
- The terminal device of any of claims 31 to 35, wherein the terminal device further comprises:and the first data transmission unit is configured to not utilize a second CG resource to perform data transmission during the operation period of the first timer, wherein the second CG resource corresponds to the first HARQ process, and the first timer corresponds to the first HARQ process.
- The terminal device of claim 36, wherein the terminal device further comprises:and the first control unit is configured to stop the first timer when receiving a new transmission or retransmission schedule for the first HARQ process, and perform new transmission of second uplink data or retransmission of the first uplink data based on the new transmission or retransmission schedule.
- The terminal device of claim 36, wherein the terminal device further comprises:and the second control unit is configured to stop the first timer when receiving a first Downlink Feedback Indication (DFI) indicating that the data is correctly received or a second DFI indicating that the data is not correctly received, and to perform new transmission of second uplink data or retransmission of the first uplink data based on the first DFI or the second DFI.
- The terminal device of any of claims 31 to 38, wherein the terminal device further comprises:And the first retransmission unit is configured to perform new transmission of second uplink data or retransmission of the first uplink data based on the second CG resource when the first timer is overtime or not running.
- The terminal device of claim 39, wherein the first retransmission unit is further configured to:and carrying out new transmission of the second uplink data or retransmission of the first uplink data based on the first transmission times.
- The terminal device of claim 40, wherein the first retransmission unit is further configured to:when the first count value is smaller than the first transmission times or the first count value is smaller than the second transmission times, and the previous transmission of the first HARQ process occurs on CG resources, the retransmission of the first uplink data is carried out by utilizing the second CG resources, wherein the second transmission times are equal to the first transmission times plus 1, and the first count value plus 1; the first count value is the number of times that the terminal equipment transmits the first uplink data through the first HARQ process, and the second CG resource corresponds to the first HARQ process;or when the first count value is equal to the first transmission times or the first count value is equal to the second transmission times, performing new transmission of second uplink data by using a second CG resource, and resetting the first count value.
- The terminal device according to claim 40 or 41, wherein the first transmission number is configured in a manner that:and configuring network equipment.
- The terminal device of any of claims 31 to 35, wherein the terminal device further comprises:a second starting unit configured to complete the first uplink data transmission by using the first CG resource or the first DG resource, and start a third timer;and the new transmission unit is configured to not utilize a second CG resource to carry out new transmission of second uplink data during the operation period of the third timer, wherein the second CG resource corresponds to the first HARQ process.
- The terminal device of claim 43, wherein the terminal device further comprises:and a first restarting unit configured to restart the third timer when receiving a retransmission schedule or a new transmission schedule for the first HARQ process during operation of the third timer.
- The terminal device of claim 43 or 44, wherein the terminal device further comprises:and a third control unit configured to stop the first timer when a retransmission schedule or a new transmission schedule for the first HARQ process is received during operation of the third timer.
- The terminal device of any of claims 43 to 45, wherein the terminal device further comprises:and the second retransmission unit is configured to perform retransmission of the first uplink data by using a second CG resource when the first timer is overtime or stops running, the third timer is in a running state, the previous transmission of the first HARQ process occurs on the CG resource, and the second CG resource corresponds to the first HARQ process.
- The terminal device of any of claims 43 to 46, wherein the terminal device further comprises:and the third retransmission unit is configured to utilize the second CG resource to retransmit the first uplink data when the fourth timer is overtime, the third timer is in an operation state, and the previous transmission of the first HARQ process occurs on the CG resource, wherein the second CG resource corresponds to the first HARQ process, and the second CG resource corresponds to the first HARQ process.
- The terminal device of claim 47, wherein the terminal device further comprises:and a second restarting unit configured to restart the fourth timer after the retransmission of the first uplink data is completed.
- The terminal device of any of claims 43 to 48, wherein the terminal device further comprises:The third starting unit is configured to finish transmission of second uplink data by using third DG resources and start the second timer;a fourth starting unit configured to start a fifth timer after the second timer expires, where the HARQ process used by the third DG resource is a HARQ process different from the HARQ process used for the CG resource;and the monitoring unit is configured to monitor the PDCCH scrambled by the first RNTI during the operation of the fifth timer.
- The terminal device of claim 31, wherein the terminal device further comprises:and the second data transmission unit is configured to not perform new transmission of second uplink data during the operation of the first timer.
- The terminal device of claim 50, wherein the terminal device further comprises:a fifth starting unit configured to start the sixth timer;and the monitoring unit is configured to monitor the PDCCH scrambled by the first RNTI during the time-out of the sixth timer and the running of the first timer.
- The terminal device of claim 51, wherein the configuration of the length of the sixth timer comprises one of:dynamically configuring network equipment;A predefined fixed length.
- The terminal device of claim 51 or 52, wherein,the monitoring unit is further configured to not monitor the PDCCH scrambled by the first RNTI during operation of the sixth timer.
- The terminal device of any of claims 50 to 53, wherein the terminal device further comprises:and a third restarting unit configured to restart the first timer when receiving a retransmission schedule or a new transmission schedule for the first HARQ process during operation of the first timer.
- The terminal device of any of claims 51 to 54, wherein the terminal device further comprises:a sixth starting unit configured to start a seventh timer while starting the sixth timer;the monitoring unit is configured to monitor the PDCCH scrambled by the first RNTI during the running of the seventh timer and the first timer when the sixth timer is overtime.
- The terminal device of claim 55, wherein the terminal device further comprises:and a fourth retransmission unit configured to perform retransmission of the first uplink data by using a second CG resource when the seventh timer expires or stops running, where the second CG resource corresponds to the first HARQ process.
- The terminal device of claim 55 or 56, wherein the terminal device further comprises:a fourth control unit configured to receive a first DFI indicating correct reception of data, and stop the first timer and the seventh timer; or receiving a second DFI indicating that the data was not received correctly, stopping the seventh timer.
- The terminal device of any of claims 51 to 57, wherein the terminal device further comprises:a seventh starting unit configured to complete transmission of the second uplink data by using a third DG resource, and start the sixth timer;an eighth starting unit configured to start an eighth timer after the sixth timer expires, wherein the HARQ process used by the third DG resource is a HARQ process different from the HARQ process used for the CG resource;and the monitoring unit is configured to monitor the PDCCH scrambled by the first RNTI during the operation of the eighth timer.
- The terminal device of any of claims 31-58, wherein the terminal device in radio resource control, inactive state triggers the CG-SDT procedure if a first condition is met.
- The terminal device of claim 59, wherein the first condition includes at least one of:All data to be transmitted belong to radio bearers which allow triggering SDT, and the transmission quantity of the data to be transmitted is not more than a data quantity threshold configured by a network;the RSRP measurement result of the reference signal received power is larger than or equal to the RSRP threshold of the network configuration;CG resources exist on the selected carrier and synchronization signal block SSB;the time advance TA is valid.
- A terminal device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 1 to 30.
- A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 30.
- A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 30.
- A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 30.
- A computer program which causes a computer to perform the method of any one of claims 1 to 30.
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