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WO2021072610A1 - Procédé et appareil pour activer et libérer une transmission de planification non dynamique - Google Patents

Procédé et appareil pour activer et libérer une transmission de planification non dynamique Download PDF

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Publication number
WO2021072610A1
WO2021072610A1 PCT/CN2019/111113 CN2019111113W WO2021072610A1 WO 2021072610 A1 WO2021072610 A1 WO 2021072610A1 CN 2019111113 W CN2019111113 W CN 2019111113W WO 2021072610 A1 WO2021072610 A1 WO 2021072610A1
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WIPO (PCT)
Prior art keywords
transmission
value
release
state
activation
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PCT/CN2019/111113
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English (en)
Chinese (zh)
Inventor
徐修强
陈雁
吕永霞
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201980100704.7A priority Critical patent/CN114451017B/zh
Priority to PCT/CN2019/111113 priority patent/WO2021072610A1/fr
Publication of WO2021072610A1 publication Critical patent/WO2021072610A1/fr
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Definitions

  • This application relates to the field of communication technology, and in particular to a method and device for activating and releasing non-dynamic scheduling data transmission.
  • uplink data transmission methods include data transmission based on dynamic grant (grant-based, GB) or dynamic scheduling, and non-dynamic scheduling data transmission.
  • Non-dynamic scheduling data transmission includes semi-persistent scheduling (SPS) data transmission or grant-free (GF) data transmission.
  • SPS semi-persistent scheduling
  • GF grant-free
  • the process of data transmission based on dynamic grant (grant based, GB) or dynamic scheduling includes: when the terminal has an uplink data transmission demand, it usually sends a scheduling request (scheduling request, SR) or reports a non-empty buffer status report ( Buffer state report, BSR). After receiving the SR or BSR, the base station sends downlink control information (DCI) to the terminal.
  • DCI downlink control information
  • the DCI carries an uplink grant (UL grant) to authorize the terminal to use the specified time-frequency resources.
  • UL grant an uplink grant
  • MCS Modulation and Coding Scheme
  • the non-dynamically scheduled data transmission process includes: the base station configures the time-frequency resources and transmission parameters used for uplink data transmission for the terminal in a semi-static manner through high-level signaling and/or physical layer signaling.
  • the terminal When the terminal has uplink data transmission requirements, it does not need to go through the process of sending SR or BSR to the base station, and does not need to wait for the uplink authorization process. Instead, it directly uses the semi-statically configured time-frequency resources and transmission parameters to send data to the base station to achieve data recovery. Come and go, so as to achieve the purpose of reducing transmission delay, signaling overhead and terminal power consumption.
  • the base station will create an index (index) or identification (ID) for each set of configuration parameters, and deliver the index or identification information and its corresponding configuration parameters to the terminal.
  • the base station can activate or release corresponding configuration parameters based on the index or identification corresponding to each set of configuration parameters. How to save the signaling overhead for activating or releasing non-dynamic scheduling transmission is becoming a concern of the industry.
  • This application provides a method and device for activating and releasing non-dynamically scheduled data transmission, which can save signaling overhead for activating or releasing non-dynamically scheduled transmission.
  • a data transmission method which can be implemented by the following steps: receiving downlink control information DCI for activating non-dynamic scheduling data transmission; determining X bits in the DCI as activation indication fields, so The activation indication field indicates the activated transmission configuration, where X is determined according to the maximum state value in the activation state set, and each state value in the activation state set corresponds to one or more transmission configurations in the multiple transmission configurations, Each transmission configuration includes configuration information of a group of transmission parameters used for non-dynamic scheduling of data transmission; according to the activation indication field, the activated transmission configuration is determined.
  • Non-dynamically scheduled data transmission can include grant-free (GF) uplink data transmission, SPS downlink data transmission, scheduling-free uplink data transmission, dynamic scheduling-free uplink data transmission, dynamic grant-free uplink data transmission, and configured authorized uplink transmission (uplink transmission with configured grant) or uplink data transmission configured by higher layers.
  • GF grant-free
  • SPS downlink data transmission scheduling-free uplink data transmission
  • dynamic scheduling-free uplink data transmission dynamic grant-free uplink data transmission
  • configured authorized uplink transmission uplink transmission with configured grant
  • uplink data transmission configured by higher layers can include grant-free (GF) uplink data transmission, SPS downlink data transmission, scheduling-free uplink data transmission, dynamic scheduling-free uplink data transmission, dynamic grant-free uplink data transmission, and configured authorized uplink transmission (uplink transmission with configured grant) or uplink data transmission configured by higher layers.
  • the X is determined according to the maximum state value in the active state set and the number of transmission configurations on the bandwidth part of the BWP.
  • the number of transmission configurations on the bandwidth part is specifically a maximum value among the numbers of transmission configurations on multiple BWPs.
  • the maximum state value in the activation state set is specifically the maximum state value in multiple activation state sets, and the multiple activation state sets correspond to multiple BWPs in a one-to-one correspondence.
  • the activation state set is specifically the activation state set corresponding to the BWP.
  • the activation state set is specifically the state set corresponding to the activated BWP.
  • determining the activated transmission configuration according to the activation indication field includes:
  • the value of the activation indication field is the same as a state value in the activation state set, determine that all transmission configurations corresponding to the state value are activated transmission configurations;
  • the value of the activation indication field is only the same as the index value of one transmission configuration, determining that the transmission configuration corresponding to the index value is the activated transmission configuration;
  • the value of the activation indication field is the same as a state value and an index value of a transmission configuration in the activation state set, and it is determined that all transmission configurations corresponding to the state value are activated transmission configurations.
  • a method for releasing non-dynamically scheduled data transmission is provided.
  • the method can be implemented by the following steps: receiving downlink control information DCI for releasing non-dynamically scheduled data transmission; determining X bits in the DCI as The release indication field indicates the released transmission configuration, where X is determined according to the maximum state value in the release state set, and each state value in the release state set corresponds to one of the multiple transmission configurations or Multiple transmission configurations, each transmission configuration including configuration information of a set of transmission parameters used for non-dynamic scheduling of data transmission; and determining the transmission configuration to be released according to the release indication field.
  • Non-dynamically scheduled data transmission can include grant-free (GF) uplink data transmission, SPS downlink data transmission, scheduling-free uplink data transmission, dynamic scheduling-free uplink data transmission, dynamic grant-free uplink data transmission, and configured authorized uplink transmission (uplink transmission with configured grant) or uplink data transmission configured by higher layers.
  • GF grant-free
  • SPS downlink data transmission scheduling-free uplink data transmission
  • dynamic scheduling-free uplink data transmission dynamic grant-free uplink data transmission
  • configured authorized uplink transmission uplink transmission with configured grant
  • uplink data transmission configured by higher layers can include grant-free (GF) uplink data transmission, SPS downlink data transmission, scheduling-free uplink data transmission, dynamic scheduling-free uplink data transmission, dynamic grant-free uplink data transmission, and configured authorized uplink transmission (uplink transmission with configured grant) or uplink data transmission configured by higher layers.
  • the X is determined according to the maximum state value in the release state set and the number of transmission configurations on the bandwidth part of the BWP.
  • the number of transmission configurations on the bandwidth part is specifically a maximum value among the numbers of transmission configurations on multiple BWPs.
  • the maximum state value in the release state set is specifically the maximum state value in multiple release state sets, and the multiple release state sets correspond to multiple BWPs in a one-to-one manner.
  • the release state set is specifically a release state set corresponding to the BWP.
  • the release state set is specifically the state set corresponding to the activated BWP.
  • determining the activated transmission configuration according to the activation indication field includes:
  • determining the transmission configuration to be released includes:
  • the value of the release indication field is the same as a state value in the release state set, determine that all transmission configurations corresponding to the state value are released transmission configurations;
  • the value of the release indication field is only the same as the index value of one transmission configuration, determining that the transmission configuration corresponding to the index value is the released transmission configuration;
  • the value in the release indication field is the same as a state value and an index value of a transmission configuration in the release state set, and it is determined that all transmission configurations corresponding to the state value are released transmission configurations.
  • an embodiment of the present application provides a device, the device includes a communication interface and a processor, and the communication interface is used for communication between the device and other devices, for example, data or signal transmission and reception.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, and other devices may be network devices.
  • the processor is used to call a set of programs, instructions or data to execute the method described in the first aspect.
  • the device may also include a memory for storing programs, instructions or data called by the processor. The memory is coupled with the processor, and when the processor executes instructions or data stored in the memory, it can implement the first aspect or any one of the possible design and description methods in the first aspect.
  • an embodiment of the present application provides a device that includes a communication interface and a processor, and the communication interface is used for communication between the device and other devices, for example, data or signal transmission and reception.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, and other devices may be network devices.
  • the processor is used to call a set of programs, instructions or data to execute the method described in the second aspect above.
  • the device may also include a memory for storing programs, instructions or data called by the processor. The memory is coupled with the processor, and when the processor executes the instructions or data stored in the memory, it can implement any one of the possible design methods described in the second aspect or the second aspect.
  • an embodiment of the present application also provides a computer-readable storage medium.
  • the computer-readable storage medium stores computer-readable instructions.
  • the communication device executes the method described in the first aspect, the second aspect, any one of the possible designs of the first aspect, or any one of the second aspects.
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a communication device, cause the communication device to execute as described in the first aspect or any one of the possible designs in the first aspect. Or implement the method described in the second aspect or any one of the possible designs of the second aspect.
  • an embodiment of the present application provides a chip system.
  • the chip system includes a processor and may also include a memory, which is used to implement any one of the possible designs of the first aspect, the second aspect, and the first aspect. Or the method described in any of the possible designs in the second aspect.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • FIG. 1 is a schematic diagram of the architecture of a communication system in an embodiment of the application
  • FIG. 2 is a schematic diagram of a data transmission process of dynamic scheduling in an embodiment of the application
  • FIG. 3 is a schematic diagram of a data transmission process of non-dynamic scheduling in an embodiment of the application
  • FIG. 4 is a schematic diagram of the flow of a method for activating non-dynamic scheduling data transmission according to an embodiment of the application
  • FIG. 5 is a schematic diagram of the flow of the method for releasing non-dynamic scheduling data transmission in an embodiment of the application
  • FIG. 6 is a schematic diagram of the structure of a device in the embodiment of the application in the embodiment of the application;
  • FIG. 7 is a schematic diagram of the structure of another device in the embodiment of the application in the embodiment of the application.
  • the embodiments of the present application provide a data transmission method and device, which are used to reduce terminal power consumption and ensure transmission reliability during uplink data transmission.
  • the method and the device are based on the same technical idea. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • “and/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, and both A and B exist separately. There are three cases of B.
  • the character "/" between Chinese characters generally indicates that the associated objects before and after are in an "or” relationship.
  • At least one involved in the embodiments of the present application refers to one or more; multiple refers to two or more than two.
  • words such as “first” and “second” are only used for the purpose of distinguishing description, and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating Or imply the order.
  • the data transmission method provided by the embodiments of this application can be applied to a long term evolution (LTE) system, a fifth generation (5G) communication system, or various future communication systems, for example, the sixth generation (6th generation) communication system.
  • LTE long term evolution
  • 5G fifth generation
  • 6G sixth generation
  • 5G can also be called new radio (NR).
  • FIG. 1 shows the architecture of a possible communication system to which the data transmission method provided in the embodiment of the present application is applicable.
  • the communication system 100 may include a network device 110 and a terminal device 101 to a terminal device 106. It should be understood that the communication system 100 may include more or fewer network devices or terminal devices.
  • the network device or terminal device can be hardware, software that is functionally divided, or a combination of the two.
  • the terminal device 104 to the terminal device 106 may also form a communication system.
  • the terminal device 105 may send downlink data to the terminal device 104 or the terminal device 106.
  • the network device and the terminal device can communicate with other devices or network elements.
  • the network device 110 can perform data transmission with the terminal device 101 to the terminal device 106, for example: the network device 110 can send downlink data to the terminal device 101 to the terminal device 106, and can also receive uplink data sent by the terminal device 101 to the terminal device 106; and /Or, the terminal device 101 to the terminal device 106 may also send uplink data to the network device 110, and may also receive downlink data sent by the network device 110.
  • the network device 110 is a node in a radio access network (RAN), which may also be called a base station, or a RAN node (or device).
  • the network device can also be called the network side device.
  • network equipment 101 are: gNB/NR-NB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC) , Node B (Node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband Unit (base band unit, BBU), wireless fidelity (wireless fidelity, Wifi) access point (AP), or 5G communication system or network side equipment in a possible future communication system, etc.
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS home
  • the device used to implement the function of the network device may be a network device; it may also be a device capable of supporting the network device to implement the function, such as a chip system, and the device may be installed in the network device.
  • the device for implementing the functions of the network equipment is a network device or a base station as an example to describe the technical solutions provided in the embodiments of the present application.
  • the terminal device 101 to the terminal device 106 may also be referred to as terminals.
  • a terminal can be a user equipment (UE), a mobile station (MS), or a mobile terminal (mobile terminal, MT), etc. It is a device that provides users with voice or data connectivity, or it can be a physical device. Networking equipment.
  • the terminal device 101 to the terminal device 106 include handheld devices and vehicle-mounted devices with wireless connection functions.
  • the terminal device 101 to the terminal device 106 can be a device with a wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; or on the water (such as ships, etc.); Deployed in the air (for example, on airplanes, balloons, satellites, etc.).
  • the terminal device may be a user equipment (UE), where the UE includes a handheld device with a wireless communication function, a vehicle-mounted device, a wearable device, or a computing device.
  • the UE may be a mobile phone, a tablet computer, or a computer with wireless transceiver function.
  • Terminal equipment can also be virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, wireless terminals in industrial control, wireless terminals in unmanned driving, wireless terminals in telemedicine, and smart Wireless terminals in power grids, wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • VR virtual reality
  • AR augmented reality
  • Wireless terminals in power grids, wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • the device used to implement the function of the terminal may be a terminal; it may also be a device capable of supporting the terminal to implement the function, such as a chip system, and the device may be installed in the terminal.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the device used to implement the functions of the terminal is a terminal or a UE as an example to describe the technical solutions provided in the embodiments of the present application.
  • the term “data transmission” can also be described as “communication”, “information transmission” or “transmission”.
  • This technical solution can be used for wireless communication between a scheduling entity and a subordinate entity, and those skilled in the art can use the technical solution provided in the embodiments of this application to perform wireless communication between other scheduling entities and subordinate entities, such as a macro base station and a micro base station. Wireless communication between, for example, the wireless communication between the first terminal and the second terminal.
  • the uplink data transmission of the base station may adopt dynamic scheduling and non-dynamic scheduling data transmission.
  • Dynamic scheduling can also be called GB.
  • the dynamically scheduled uplink data transmission may include the following processes:
  • the terminal When the terminal has a demand for uplink data transmission, it usually sends a scheduling request (SR) to the base station through a physical uplink control channel (PUCCH), or the terminal will use a physical uplink shared channel (physical uplink shared channel) channel, PUSCH) to report a non-empty BSR to the base station.
  • SR scheduling request
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • BSR is usually sent through media access control (MAC) layer signaling and carried in the media access layer control element (MAC CE) in the packet header of the data packet
  • MAC media access control
  • the base station After receiving the SR or non-empty BSR sent by the terminal, the base station sends DCI to the terminal through a physical downlink control channel (PDCCH).
  • PDCH physical downlink control channel
  • the DCI carries an uplink grant (UL grant), which is used to authorize the terminal to send uplink data using specified transmission parameters on specified time-frequency resources. For example, a specified modulation and coding scheme (MCS) is used to send uplink data.
  • MCS modulation and coding scheme
  • the terminal uses the specified transmission parameters on the specified time-frequency resources according to the DCI to send uplink data through the PUSCH.
  • dynamic scheduling can efficiently use the real-time channel information between the terminal and the base station, and specify the location, size, and transmission parameters of the appropriate time-frequency resources for each transmission of the terminal, the dynamic scheduling of uplink transmission usually has a higher reliability.
  • the terminal In the uplink data transmission process based on dynamic authorization, the terminal needs to send SR or BSR to the base station before sending data, and the base station will authorize through DCI. This process will introduce delay and PDCCH signaling overhead.
  • CCE Control Channel Element
  • Aggregation Level Aggregation Level
  • Form DCI formats
  • the length, and/or different radio network temporary identifiers perform blind detection, which requires a lot of power consumption. Data transmission using non-dynamic scheduling can reduce time delay, reduce signaling overhead, and reduce terminal power consumption.
  • Non-dynamic downlink data transmission includes SPS downlink data transmission, and GF data transmission is used for uplink transmission.
  • Non-dynamic scheduling uplink data transmission can also be called authorization-free uplink data transmission, scheduling-free uplink data transmission, uplink data transmission without dynamic scheduling (uplink data transmission without dynamic scheduling), and uplink data transmission without dynamic authorization (uplink). data transmission without dynamic grant), uplink data transmission with configured authorization (uplink data transmission with configured grant), or uplink data transmission configured by high-layers (uplink data transmission configured by high-layer).
  • Uplink data transmission includes PUSCH transmission.
  • GF uplink data transmission includes PUSCH transmission based on type 1 configuration authorization (Type 1 PUSCH transmission with a configured grant, or Type 1 configured grant PUSCH transmission) and PUSCH transmission based on type 2 configuration authorization (Type 2 PUSCH transmission with a configured grant, or Type 2 configured grant PUSCH transmission).
  • the base station sends the configuration authorization configuration (configured grant configuration, also called configuredGrantConfig) to the terminal through RRC signaling.
  • the configured grant configuration is used to configure the period, including time domain resources, Open-loop power control related parameters, waveform, redundancy version sequence, number of repetitions, frequency hopping mode, resource allocation type, HARQ process number, demodulation reference symbol (DMRS) related parameters, modulation and coding scheme table, resources Block (resource block group, RBG) group size, time domain resources, frequency domain resources, modulation and coding scheme (modulation and coding scheme, MCS) including all transmission resources and transmission parameters.
  • the terminal can immediately use its configured transmission parameters to perform PUSCH transmission on the configured time-frequency resources.
  • the configuredGrantConfig configuration includes the period of time domain resources, open-loop power control related parameters, waveforms, redundancy version sequence, number of repetitions, and frequency hopping.
  • CS-cell radio network temporary identifier radio network Temporary identifier (RNTI) scrambled DCI activates the second type of PUSCH transmission based on configuration authorization, and at the same time, the DCI configures other transmission parameters including time domain resources, frequency domain resources, DMRS, MCS, etc.
  • the terminal When the terminal receives the high-level parameter configuredGrantConfig, it cannot immediately use the resources and transmission parameters configured by the configuredGrantConfig to perform PUSCH transmission, but must wait until the corresponding activated DCI is received and other resources and transmission parameters are configured before PUSCH transmission can be performed.
  • the time-frequency resources for non-dynamically scheduled data transmission are all configured by the base station in a semi-static manner, which is equivalent to pre-configured or reserved for the terminal, these resources still exist even if the terminal has no uplink data transmission requirements.
  • the uplink GF resources configured by the base station in a semi-static manner recur in the time domain in a periodic manner, and the GF resources in each cycle are used To transmit an upstream data packet.
  • the terminal arrives on the periodic GF resource, if there is an uplink data transmission demand, it will send an uplink data packet on the arriving GF resource.
  • the uplink data transmission demand is generated after the last available GF resource in a certain period (for example, period 1 in Fig. 3), it has to wait until the GF of the next period (for example, period 2 in Fig. 3) Resources. In this case, the data transmission delay will be longer.
  • a set of configuration parameters may refer to parameters required to complete a PUSCH transmission or PDSCH transmission.
  • a set of configuration parameters refers to a configuredGrantConfig
  • a set of configuration parameters refers to all the parameters in a congfiguredGrantConfig and the corresponding parameters configured to activate the DCI.
  • the parameters included in the configuredGrantConfig used for PUSCH transmission of the first type of configuration authorization and the configuredGrantConfig used for the second type of configuration authorization of PUSCH transmission are not exactly the same. For details, please refer to the standard 3GPP TS38.331. Related description.
  • configuration data transmission (uplink data transmission and downlink data transmission) refers to configuration of transmission parameters used for data transmission; activation of data transmission refers to activation of transmission parameters of data transmission so that it can be used for subsequent data transmission; release Data transmission refers to the release (deactivation) of the transmission parameters of the data transmission so that it is in an invalid (invalid) state and cannot be used for subsequent data transmission.
  • the base station when the base station configures multiple sets of transmission parameters for the PUSCH transmission authorized based on the second type of configuration for the terminal, the base station needs to activate each set of transmission parameters.
  • the base station issues an activated DCI each time, and the DCI carries a set of transmission parameter indexes (or identifiers), and the set of transmission parameters indicated by the index is activated, if necessary
  • the base station issues an activated DCI each time, and the DCI carries a set of transmission parameter indexes (or identifiers), and the set of transmission parameters indicated by the index is activated, if necessary
  • multiple activated DCIs need to be issued, and each activated DCI needs to carry the index corresponding to the activated set of transmission parameters.
  • a release method (called separate release) if the transmission parameters of PUSCH transmission authorized based on the second type of configuration need to be released, the base station issues a release DCI each time, and the release DCI carries a set of transmission parameter indexes (or ID), the set of transmission parameters indicated by the index is released. If multiple sets of transmission parameters need to be released, multiple release DCIs need to be issued, and each activated DCI needs to carry the index corresponding to the released set of transmission parameters.
  • the base station can configure an active state set (each state set has a maximum of, for example, 16 state values), the active state set contains one or more state values, and each state value corresponds (or is associated) One or more indexes (or identifiers), each index corresponds to a set of transmission parameters for PUSCH transmission authorized based on the second type of configuration, the base station issues the active DCI carrying the state value, and the transmission corresponding to the index associated with the state value
  • the parameter is the activated transmission parameter.
  • the base station can configure a release state set (each state set has a maximum of, for example, 16 state values), the active state set contains one or more state values, and each state value corresponds (or is associated) One or more indexes (or identifiers), each index corresponds to a set of transmission parameters for PUSCH transmission authorized based on the second type of configuration, the base station issues the release DCI carrying the status value, and the transmission corresponding to the index associated with the status value The parameter is the released transmission parameter.
  • a release state set each state set has a maximum of, for example, 16 state values
  • the active state set contains one or more state values
  • each state value corresponds (or is associated)
  • each index corresponds to a set of transmission parameters for PUSCH transmission authorized based on the second type of configuration
  • the parameter is the released transmission parameter.
  • one DCI can activate or release multiple sets of transmission parameters, thereby saving signaling overhead.
  • the active state set can also be referred to as the index set of the active group or the index set of the configuration group, and each state value can also be referred to as the index (or identification) of the active group or the index set of the configuration group. Index (or identification).
  • the above-mentioned separate activation/release method has high signaling overhead, it has high flexibility.
  • the above-mentioned joint activation/release method has the advantage of saving signaling overhead, but its flexibility is not high compared to the single activation/release method.
  • the embodiment of the present application provides a method for activating/releasing non-dynamic scheduling data transmission, which can save signaling overhead and also allows for relatively high flexibility.
  • the network device configures multiple transmission configurations for non-dynamically scheduled data transmission for the terminal device through high-level signaling (for example, RRC signaling), and each transmission configuration includes configuration information of a set of transmission parameters for non-dynamically scheduled data transmission.
  • Different transmission configurations may be different configurations of parameter values for the same set of transmission parameters.
  • the two transmission configurations if only one parameter has a different parameter value, the two transmission configurations can be regarded as different transmission configurations.
  • the time domain resource period is 5 time slots
  • transmission configuration 2 the time domain resource period is 10 time slots
  • transmission configuration 1 and transmission configuration 2 except for the configuration of time domain resource period Except for the difference, the parameter values of other parameters are the same.
  • transmission configuration 1 and transmission configuration 2 can be regarded as different transmission configurations.
  • the network device configures the activation state set and/the release state set for the terminal through signaling.
  • the active state set contains at least one state value, and each state value is associated (or corresponding to) one or more transmission configurations.
  • the release state set contains at least one state value, and each state value is associated with (or corresponds to) one or more transmission configurations.
  • the activation state set and the release state set can be the same or different. If the activation state set and the release state set are the same, the network device may only need to configure one state set.
  • the state value in the activation state set and the value in the release state set may be different or the same.
  • the transmission configuration associated with the same state value in the activated state set and the released state set may be the same or different.
  • the state value is associated with the transmission configuration, and the state value may be associated with the index (identification or sequence number) of the transmission configuration.
  • the network device is configured with 12 transmission configurations (the indexes are 0-11 as an example), and a transmission state set containing 4 state values (state values are 0, 1, 2, 3)
  • this application provides an example of the corresponding relationship between the state value of the active state set and the index of the transmission configuration, as shown in Table 1.
  • the network device can configure the active state set for the terminal device through RRC signaling.
  • RRC signaling Taking the non-dynamically scheduled data transmission as the PUSCH transmission based on the second type of configuration authorization, and a transmission configuration including the configuration information of the parameters included in the configuredGrantConfig of the second type of configuration authorization PUSCH transmission as an example, this application provides a The information structure used to configure the above state set in RRC signaling is as follows:
  • Type2Configuredgrantconfig-ActivateStateList represents the activation state set of the network device configuration, including a maximum of 16 states.
  • Type2Configuredgrantconfig-ActivateState represents a state in the activated state set, stateValue is the value of the state, and the value range is 0 to 15, type2-CGConfig contains one or more index values ConfiguredGrantConfigIndex, which represents the index value associated with the state, each The index value corresponds to a transmission configuration. It is understandable that in addition to the above information structure, there may be other information structures that can also implement the configuration of the activation state machine, which is not limited in this application.
  • the method of configuring the release state set is the same as the method of configuring the activation state set. You only need to replace the "activation state (or ActivateState)" with the “release state (or ReleaseState)", which will not be repeated here.
  • the terminal device may obtain the release state set and the release state set in other ways. For example, the terminal device determines the transmission configuration corresponding to each state value according to a preset rule. In this case, the network device also determines the transmission configuration corresponding to each state value according to the same preset rule.
  • the preset rule may It is specified by a standard protocol, or it can be negotiated between the network device and the terminal device.
  • the process of a method for activating non-dynamic scheduling data transmission is as follows.
  • the execution body of this method takes terminals and network devices as examples, and the non-dynamic scheduling data transmission in this method takes PUSCH transmission authorized based on the second type of configuration as an example.
  • S401 The terminal receives the DCI sent by the network device for activating non-dynamic scheduling data transmission.
  • the DCI is used to activate PUSCH transmission based on the second type of configuration authorization.
  • the preset condition is specified by the standard, and is used to determine whether the DCI is the DCI used to realize the activation function.
  • the above conditions specifically include:
  • DCI is scrambled by CS-RNTI
  • the new data indication field in DCI is set to 0;
  • the redundancy version (RV) field in the DCI is set to 0.
  • the DCI is the DCI used to activate PUSCH transmission authorized based on the second type of configuration.
  • the terminal parses each domain (field) in the DCI according to the structure of the DCI as the activation function.
  • the DCI format that can be used to activate PUSCH transmission based on configuration authorization can be DCI format 0_0 and 0_1, or other newly designed formats.
  • the DCI formats that can be used to activate SPS downlink data transmission can be DCI formats 1_0 and 1_1, or other newly designed formats.
  • the specific structure of the DCI format 0_0, 0_1, 1_0, 1_1 can refer to the relevant description in the standard 3GPP TS 38.212.
  • S402. Determine X bits in the DCI as an activation indication field, the activation indication field indicating the activated transmission configuration, where X is determined according to the maximum state value in the activation state set, and each of the activation state sets
  • the state value corresponds to one or more of the multiple transmission configurations, and each transmission configuration includes configuration information of a set of transmission parameters for non-dynamically scheduled data transmission.
  • the activation indication field can directly indicate the index of the activated transmission configuration, or it can indicate a state value in the activation state set. By indicating the state value, it indirectly indicates the transmission configuration corresponding to the state value.
  • the transmission configuration corresponding to the value is the activated transmission configuration.
  • Q is the maximum state value in the active state set. In one embodiment, Q is the maximum state value in the active state set.
  • P is the number of transmission configurations on a BWP. In another embodiment,
  • P and Q are respectively the number of transmission configurations on the same BWP and the maximum state value in the active state set.
  • the terminal device may determine X bits starting from the preset bit as the activation indication field.
  • the preset bit may be determined according to the format of the DCI.
  • the activation field can be a single field or a combination of multiple fields; it can be a field that already exists in the DCI format described above, such as HARQ Process Number (HPN) field, redundancy version RV field ,
  • the transmit power control (TPC) domain, etc. may also be a newly introduced domain that is different from any domain that already exists in the DCI. For example, if the number of bits in the HPN field is greater than or equal to X, the first X bits of the HPN field are used as the activation indication field. If the number of bits in the HPN field is less than X, all bits in the HPN field can be used as part of the activation indication active field. , And then use the bits of the other fields as the remaining bits of the active field of the activation indication.
  • S403 Determine the activated transmission configuration according to the activation indication field.
  • step S403 includes: when the value of the activation indication field is the same as a state value in the activation state set, determining that all transmission configurations corresponding to the state value are activated transmission configurations.
  • the terminal considers the value of the activation indication field to be a state value in the activation state set.
  • the terminal considers that the value of the activation indication field indicates an index of a transmission configuration.
  • the terminal does not expect that the value indicated by the activation indication field is different from the index of any transmission configuration, and is also different from any state value in the activation state set, or when the value indicated by the indication field is different from the index of any transmission configuration
  • the terminal considers this to be an error case, and the DCI does not activate any transmission configuration.
  • the terminal considers this to be an error case, and the DCI does not activate any transmission configuration.
  • the indication field in this embodiment indicates an index of a transmission configuration.
  • the transmission configuration corresponding to the index with the same state value in the activation state set cannot be individually activated, and the transmission configuration corresponding to the index with the different state value in the activation state set can be activated separately.
  • step S403 includes: when the value of the activation indication field is the same as the index of a transmission configuration, determining that the transmission configuration corresponding to the index is the activated transmission configuration.
  • the terminal considers the value of the activation indication field to be an index of a transmission configuration.
  • the terminal considers that the value of the activation indication field indicates a state value in the activation state set.
  • the terminal does not expect that the value indicated by the activation indication field is different from the index of any transmission configuration, and is also different from any state value in the activation state set, or when the value indicated by the indication field is different from the index of any transmission configuration When it is also different from any state value in the activated state set, the terminal considers this to be an error case, and the DCI does not activate any transmission configuration.
  • the indication field in this embodiment indicates a transmission Configuration index; in this embodiment, even when the value of the activation indication field is one of 0-3, the indication field in this embodiment is not considered to indicate the state value in the activation state set.
  • This situation is equivalent to joint activation Disabled. If only part of the state values in the activation state set are the same as the index of the transmission configuration, only the joint activation corresponding to this part of the state value is disabled, and other state values can still be indicated, thereby realizing joint activation.
  • the size of the DCI activation indication field in the embodiment of this application is not fixed, and is related to the maximum state value in the activation state set. Therefore, the method provided in the embodiment of this application can save signaling overhead for indicating activation of the transmission configuration. .
  • the flow of a method for releasing non-dynamic scheduling data transmission is as follows.
  • the execution body of this method takes terminals and network devices as examples, and the non-dynamic scheduling data transmission in this method takes PUSCH transmission authorized based on the second type of configuration as an example.
  • S501 The terminal receives the DCI sent by the network device for releasing the non-dynamically scheduled data transmission.
  • the DCI is used to release the PUSCH transmission authorized based on the second type of configuration.
  • the preset condition is specified by the standard, and is used to determine whether the DCI is the DCI used to realize the release function.
  • the above conditions specifically include:
  • DCI is scrambled by CS-RNTI
  • the new data indication field in DCI is set to 0;
  • the redundancy version (RV) field in DCI is set to 0;
  • MCS domain and frequency domain resource assignment are set to all 1.
  • the DCI is the DCI used to release the PUSCH transmission authorized based on the second type of configuration.
  • the terminal parses each domain (field) in the DCI according to the structure of the DCI as the release function.
  • the DCI format that can be used to release PUSCH transmission based on configuration authorization can be DCI format 0_0 and 0_1, or other newly designed formats.
  • the DCI formats that can be used to release SPS downlink data transmission can be DCI formats 1_0 and 1_1, or other newly designed formats.
  • the specific structure of the DCI format 0_0, 0_1, 1_0, 1_1 can refer to the relevant description in the standard 3GPP TS 38.212.
  • S502. Determine X bits in the DCI as a release indication field, the release indication field indicating the released transmission configuration, where X is determined according to the maximum state value in the release state set, and each of the release state sets
  • the state value corresponds to one or more transmission configurations used in multiple transmission configurations, and each transmission configuration includes configuration information of a set of transmission parameters used for non-dynamically scheduled data transmission.
  • the release indication field can directly indicate the index of the released transmission configuration, or it can indicate a state value in the release state set. By indicating the state value, it indirectly indicates the transmission configuration corresponding to the state value.
  • the transmission configuration corresponding to the value is the released transmission configuration.
  • Q is the maximum state value in the release state set. In yet another embodiment, Q is the maximum state value in the active state set.
  • P is the number of transmission configurations on a BWP. In another embodiment,
  • P and Q are respectively the number of transmission configurations on the same BWP and the maximum state value in the release state set.
  • the terminal device may determine X bits starting from the preset bit as the release indication field.
  • the preset bit may be determined according to the format of the DCI.
  • the release field can be one field or a combination of multiple fields; it can be a field that already exists in the DCI format described above, such as HARQ Process Number (HPN) field, redundancy version RV field ,
  • HPN HARQ Process Number
  • RV redundancy version
  • TPC transmit power control
  • the release field may also be a newly introduced domain that is different from any domain that already exists in the DCI. For example, if the number of bits in the HPN field is greater than or equal to X, the first X bits or the last X bits of the HPN field are used as the release indication field. If the number of bits in the HPN field is less than X, all bits in the HPN field can be used as the release indication Part of the bits of the field is released, and then the bits of other fields are used as the release instruction to release the remaining bits of the field.
  • S503 Determine the released transmission configuration according to the release indication field.
  • step S403 includes: when the value of the release indication field is the same as a state value in the release state set, determining that all transmission configurations corresponding to the state value are released transmission configurations.
  • the terminal considers the value of the release indication field to be a state value in the release state set.
  • the terminal considers that the value of the release indication field indicates an index of a transmission configuration.
  • the terminal does not expect that the value indicated by the release indication field is different from the index of any transmission configuration, and is also different from any state value in the release state set, or when the value indicated by the indication field is different from the index of any transmission configuration , Also different from the situation where any state value in the state set is released, the terminal considers this to be an error case, and the DCI does not release any transmission configuration.
  • the corresponding relationship between the state value in the release state set and the index of the transmission configuration shown in Table 1 as an example, if the value of the release indication field is a value from 0 to 3, the indication field in this embodiment indicates the release state State value in the indication set; if the value of the release indication field is one of 4-11, the indication field in this embodiment indicates an index of a transmission configuration.
  • the transmission configuration corresponding to the index with the same state value in the release state set cannot be released separately, and the transmission configuration corresponding to the index with the different state value in the release state set can be released separately.
  • step S503 includes: when the value of the release indication field is the same as the index of a transmission configuration, determining that the transmission configuration corresponding to the index is the released transmission configuration. In this embodiment, as long as the value of the release indication field is the same as the index of any transmission configuration, the terminal considers the value of the release indication field to be an index of a transmission configuration. When the value of the release indication field is only the same as the state value in the release state set, but is not the same as the index of any transmission configuration, the terminal considers that the value of the release indication field indicates a state value in the release state set. .
  • the terminal does not expect that the value indicated by the release indication field is different from the index of any transmission configuration, and is also different from any state value in the release state set, or when the value indicated by the indication field is different from the index of any transmission configuration , Also different from the situation where any state value in the state set is released, the terminal considers this to be an error case, and the DCI does not release any transmission configuration.
  • the indication field in this embodiment indicates a transmission Configuration index; in this embodiment, even when the value of the release indication field is one of 0-3, the indication field in this embodiment is not considered to be the state value in the release state set, which is equivalent to joint release Disabled. If only part of the state value in the release state set is the same as the index of the transmission configuration, only the joint release corresponding to this part of the state value is disabled, and other state values can still be indicated, thereby realizing the joint release.
  • the size of the DCI release indication field in the embodiment of this application is not fixed, and is related to the maximum state value in the release state set. Therefore, the method provided in the embodiment of this application can save the signaling overhead of the transmission configuration for indicating the release. .
  • an embodiment of the present application further provides an apparatus 1100.
  • the apparatus 1100 may be a terminal or a network device, or a terminal or a device in the network device, or may be able to interact with the terminal or Matching device used by network equipment.
  • the device 1100 may include modules that perform one-to-one correspondence of the methods/operations/steps/actions performed by the terminal or network equipment in the foregoing method embodiments.
  • the modules may be hardware circuits, software, or Hardware circuit combined with software implementation.
  • the device may include a processing module 1101 and a communication module 1102. The processing module 1101 is used to call the communication module 1102 to perform receiving and/or sending functions.
  • the communication module 1102 is configured to receive downlink control information DCI used to release non-dynamically scheduled data transmission;
  • each transmission configuration includes configuration information of a set of transmission parameters for non-dynamically scheduled data transmission;
  • the released transmission configuration is determined.
  • the present application also provides a communication device having a structure as shown in FIG. 6 for implementing the method of the embodiment shown in FIG. 5.
  • the communication module 1102 is configured to receive downlink control information DCI used to release non-dynamically scheduled data transmission;
  • each transmission configuration includes configuration information of a set of transmission parameters for non-dynamically scheduled data transmission;
  • the released transmission configuration is determined.
  • the division of modules in the embodiments of this application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of this application can be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software function modules.
  • an apparatus 1200 provided in an embodiment of the application is used to implement the functions of the terminal or network device in the above method.
  • the device can be a network device, a device in a network device, or a device that can be used in conjunction with the network device.
  • the device may be a terminal, a device in the terminal, or a device that can be used in a match with the terminal.
  • the device may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the apparatus 1200 includes at least one processor 1220, configured to implement the functions of the terminal or the network device in the method provided in the embodiment of the present application.
  • the apparatus 1200 may further include a communication interface 1213.
  • the communication interface may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces, which are used to communicate with other devices through a transmission medium.
  • the communication interface 1213 is used for the device in the device 1200 to communicate with other devices.
  • the apparatus 1200 is a network device
  • the other device may be a terminal.
  • the device 1200 is a terminal device
  • the other device may be a network device.
  • the processor 1220 uses the communication interface 1213 to send and receive data, and is used to implement the method in the foregoing method embodiment.
  • the processor 1220 is configured to use the communication interface 1213 to receive the downlink control information DCI used to release non-dynamically scheduled data transmission; the processor 1220 is configured to: Determined as a release indication field, the release indication field indicates the released transmission configuration, where X is determined according to the maximum state value in the release state set, and each state value in the release state set corresponds to one used in multiple transmission configurations One or more transmission configurations, each transmission configuration including configuration information of a set of transmission parameters used for non-dynamic scheduling of data transmission; and determining the transmission configuration to be released according to the release indication field.
  • the processor 1220 is configured to use the communication interface 1213 to receive downlink control information DCI used to release non-dynamically scheduled data transmission; the processor 1220 is configured to: determine X bits in the DCI as a release indication Field, the release indication field indicates the released transmission configuration, where X is determined according to the maximum state value in the release state set, and each state value in the release state set corresponds to one or more of the multiple transmission configurations Transmission configuration, each transmission configuration includes configuration information of a set of transmission parameters used for non-dynamic scheduling of data transmission; and the transmission configuration to be released is determined according to the release indication field.
  • the processor 1220 and the communication interface 1213 may also be used to perform other corresponding steps or operations performed by the terminal or network device in the foregoing method embodiment, which will not be repeated here.
  • the apparatus 1200 may further include at least one memory 1230 for storing program instructions and/or data.
  • the memory 1330 and the processor 1220 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 1220 may operate in cooperation with the memory 1230.
  • the processor 1220 may execute program instructions stored in the memory 1230. At least one of the at least one memory may be included in the processor.
  • the embodiment of the present application does not limit the specific connection medium between the communication interface 1213, the processor 1220, and the memory 1230.
  • the memory 1230, the communication interface 1220, and the transceiver 1213 are connected by a bus 1240.
  • the bus is represented by a thick line in FIG. 7.
  • the connection mode between other components is only for schematic illustration. , Is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and so on. For ease of representation, only one thick line is used in FIG. 7, but it does not mean that there is only one bus or one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which may implement or Perform the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), for example Random-access memory (random-access memory, RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this.
  • the memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.
  • the embodiment of the present application also provides a computer-readable medium on which a computer program is stored, and when the computer program is executed on an apparatus, the apparatus enables the apparatus to implement the method described in the foregoing method embodiment.
  • the embodiments of the present application also provide a computer program product, which when executed on an apparatus, causes the apparatus to implement the method described in the foregoing method embodiment.
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

L'invention concerne un procédé et un appareil d'activation et de libération de transmission de données de planification non dynamique (par exemple, transmission de données de liaison montante non autorisée). Le procédé consiste à : recevoir des informations de commande de liaison descendante (DCI) utilisées pour activer la transmission de données de planification non dynamique; déterminer X bits dans les DCI en tant que champs d'indication d'activation, les champs d'indication d'activation indiquant des configurations de transmission activées, X étant déterminé en fonction de la valeur d'état maximale dans un ensemble d'états d'activation, chaque valeur d'état de l'ensemble d'états d'activation correspond à une ou plusieurs des multiples configurations de transmission, et chaque configuration de transmission comprend des informations de configuration d'un groupe de paramètres de transmission utilisés pour une transmission de données de planification non dynamique; et déterminer les configurations de transmission activées en fonction des champs d'indication d'activation.
PCT/CN2019/111113 2019-10-14 2019-10-14 Procédé et appareil pour activer et libérer une transmission de planification non dynamique Ceased WO2021072610A1 (fr)

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