CN113260053B - Transmission time slot structure indication method and equipment - Google Patents
Transmission time slot structure indication method and equipment Download PDFInfo
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- CN113260053B CN113260053B CN202010089096.9A CN202010089096A CN113260053B CN 113260053 B CN113260053 B CN 113260053B CN 202010089096 A CN202010089096 A CN 202010089096A CN 113260053 B CN113260053 B CN 113260053B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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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
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Abstract
The application discloses a time slot structure indication method and equipment, wherein the method comprises time slot structure indication information used for indicating the direction structure configuration of L time slots starting from a second time slot; receiving the slot structure indication information in a first slot; and the time interval between the second time slot and the first time slot is not less than the set time length. The application also provides network equipment, terminal equipment and a system for the method. The method of the invention solves the problem that the NR system can not effectively complete the identification and/or use of the directional structure configuration of the time slot when the signal air propagation distance is longer.
Description
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to a method and a device for indicating a transmission timeslot structure.
Background
With the rapid development of the mobile internet, people have stronger and stronger requirements for surfing the internet anytime and anywhere, and a satellite communication system and a New Radio (NR) system are mutually fused to construct a comprehensive communication network integrated with the sky and the ground, so that the ubiquitous multi-service requirements of user equipment are met.
The ground-air communication system which is developed in a customized manner by utilizing the mature land mobile communication technology aiming at the characteristics of aviation high-speed movement, wide coverage and the like can meet the internet surfing requirement of the aviation environment.
In a land mobile communication system, a signal air propagation distance between a network device and a terminal device is short, and a time delay is often much less than 1ms, so when the network device sends a Slot structure Indication information SFI (Slot Format Indication, for example, DCI Format 2_0) to the terminal device in real time, the terminal device adjusts a sending or receiving state within 1 Slot, and adapts a directional structure configuration of L slots.
However, in a system such as ground-air communication or satellite communication, the signal has a long air propagation distance, and the time delay varies from several milliseconds to hundreds of milliseconds.
The invention aims at the improvement of the current land mobile communication NR system and supports application scenes such as ground-air communication or satellite communication.
Disclosure of Invention
The application provides a method and equipment for indicating a transmission time slot structure, which solve the problem that an NR system cannot effectively complete the direction structure configuration indication of a time slot when the signal air propagation distance is long.
In a first aspect, an embodiment of the present application provides a method for indicating a transmission timeslot format, where the method includes timeslot structure indication information used to indicate a directional structure configuration of L timeslots (L is an integer greater than 0) from a second timeslot; receiving the slot structure indication information in a first slot; the time interval between the second time slot and the first time slot is not less than the set duration; the set time length is not less than the length of 1 time slot.
Preferably, the directional structure configuration indicates that the symbols in the L slots are any combination of uplink symbols, downlink symbols, and flexible symbols.
Preferably, the set duration is not less than twice the delay, where the delay refers to a time difference between the time slot structure indication information being received and the time slot structure indication information being sent.
Further, the set time length is used as an uplink information Timing Advance (TA); the uplink information timing advance is an advance of a time unit start time for transmitting uplink data relative to a time unit start time for receiving downlink data.
Further, the delay is a maximum value of transmission delays between the network device and the plurality of terminal devices, or the delay is a transmission delay between the network device and one terminal device.
Further, the method of the embodiment of the present application is applied to a network device, and the network device sends the timeslot structure indication information. As a further optimized embodiment, the network device sends time indication information; the time indication information is used for indicating the time interval. As an alternative embodiment, the network device uses a preset value as the time interval. Further, the network device starts to use the directional structure configuration of the L slots after the time interval elapses, from the transmission of the slot structure indication information.
Further, the method of the embodiment of the present application is applied to a terminal device, and the terminal device receives the timeslot structure indication information. As a further optimized embodiment, the terminal device receives time indication information; the time indication information is used for indicating the time interval. As an alternative embodiment, the terminal device uses a preset value as the time interval.
The terminal equipment receives the time slot structure indication information in a first time slot; and the terminal equipment receives downlink data by using the directional structure configuration of the L time slots from the second time slot. The timing advance can be used as the amount of time before the starting time of the terminal device uplink data direction structure configuration on the basis of the second time slot. And the terminal equipment uses the directional structure configuration of the L time slots to send the uplink data after the first time slot and before the second time slot.
In a second aspect, an embodiment of the present application further provides a network device, configured to: and sending the time slot structure indication information.
Further, the network device is further configured to send time indication information; the time indication information is used for indicating the time interval.
An embodiment of the present application further provides a network device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to any one of the embodiments of the present application applicable to a network device.
In a third aspect, the present application further provides a terminal device, where with the method in any embodiment of the present application, the terminal device is configured to: and receiving the time slot structure indication information.
Further, the terminal device is further configured to receive time indication information; the time indication information is used for indicating the time interval.
The terminal device is further configured to receive the timeslot structure indication information in a first timeslot; and the terminal equipment receives downlink data by using the directional structure configuration of the L time slots from the second time slot. The terminal device is further configured to send uplink data after the first time slot and before the second time slot by using the directional structure configuration of the L time slots. And configuring the starting time for sending the uplink data by using the direction structure in the L time slots by using the timing advance as the advance on the basis of a second time slot by the terminal equipment.
An embodiment of the present application further provides a terminal device, including: the terminal device comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the computer program realizes the steps of the method of any one embodiment of the application which can be used for the terminal device when being executed by the processor.
In a fourth aspect, the present application also proposes a computer-readable medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the present application.
In a fifth aspect, the present application further provides a mobile communication system, which includes at least 1 embodiment of any terminal device in the present application and/or at least 1 embodiment of any network device in the present application.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
in a system with larger air propagation time delay, such as ground-air communication or satellite communication, the scheme can realize that the terminal equipment effectively determines the configuration result of the time slot structure, so that the terminal equipment can complete the related processes of a physical layer, such as measurement, scheduling, information detection and transmission, and the like after receiving the indication information of the time slot structure, and realize that the terminal equipment correctly identifies and/or uses the directional structure configuration of the time slot indicated by the SFI.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic view of a directional structure configuration of a time slot between a network device and a terminal device;
fig. 2 is a schematic view of a directional structure configuration of a time slot between a network device and a terminal device according to the present invention;
FIG. 3 is a flow chart of an embodiment of the method of the present application for a network device;
FIG. 4 is a flowchart of an embodiment of the method of the present application for a terminal device;
FIG. 5 is a diagram of an embodiment of a network device;
FIG. 6 is a schematic diagram of an embodiment of a terminal device;
fig. 7 is a schematic structural diagram of a network device according to another embodiment of the present invention;
fig. 8 is a block diagram of a terminal device of another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a directional structure configuration of a time slot between a network device and a terminal device.
Slot structure indication information, for example, indication information (SFI) of a frame structure implemented by a NR system downlink control signaling (DCI) format 2_0. The network device transmits the DCI format 2 _0of the SFI in the time slot n at time t0, and the indication information arrives at the terminal device side at time t2 and is detected by the terminal device. According to the indication method of DCI format 2_0 in the prior art, the SFI transmitted in slot n indicates the slot structure of L slots starting from slot n, which is illustrated by L =10 in fig. 1 and is represented by a particle with a shaded pattern. In addition, the terminal device needs to transmit the uplink transmission corresponding to the time slot n at time t 0. In order to meet the requirement of uplink synchronous transmission, the uplink timing t0 of the terminal equipment is advanced compared with the time t2, and the advanced time length is called timing advance and is about twice time delay. However, the time slot configuration from time slot n to time slot n +9 reaches the terminal device side at time t2 and is detected by the terminal device. Thus, the terminal device cannot complete the physical layer related processes such as measurement, scheduling, information detection and transmission according to the indication of the SFI before the time t 2.
However, in a system such as ground-to-air communication or satellite communication, the air propagation delay of a signal is large, ranging from several milliseconds to hundreds of milliseconds, and if the indication method of DCI format 2 \ u 0 in the prior art is still used, because the delay is large (for example, 20 ms), the terminal device cannot transmit uplink data when uplink data should be transmitted and receive downlink data when downlink data should be received in L time slots (for example, 10 ms) consecutive from the time t 2. When the terminal device is likely to send uplink data, the terminal device has not obtained an information indication that a symbol corresponding to the uplink data is an uplink symbol; it is also possible that when the terminal device should receive the downlink data, the terminal device has not obtained an information indication that the symbol corresponding to the downlink data is a downlink symbol. That is, the terminal device cannot correctly identify and/or use the directional structure configuration of the slot indicated by the SFI.
Fig. 2 is a schematic diagram of the directional configuration of the time slot between the network device and the terminal device according to the present invention.
The embodiment of the application provides a transmission time slot format indicating method, which comprises time slot structure indicating information, wherein the time slot structure indicating information is used for indicating the directional structure configuration of L time slots from the second time slot (L is an integer larger than 0, namely L is more than or equal to 1); receiving the slot structure indication information in a first slot; the time interval between the second time slot and the first time slot is not less than the set duration; the set time length is not less than the length of 1 time slot.
The directional structure configuration of the present application is used to indicate a combination manner of an uplink symbol, a downlink symbol, and a flexible symbol in a timeslot structure combination. For example, one timeslot structure combination includes L (the number of timeslots of DCI format 2 _0standard is denoted as maxnrof slot format combining pserset, and the maxnrof slot format combining pserset may be 5, 10, 20, etc.) timeslot structures, each timeslot structure includes 14 symbols, and each symbol is configured as an uplink symbol, a downlink symbol, or a flexible symbol.
In order to fully utilize the transmission resources, the value of L may be greater than or equal to the period of the terminal device detecting the timeslot structure indicator information. For example, if the slot structure indication information is DCI format 2 \, and the value of maxnrof slotsetformationslorsert included in the slot structure indication information is greater than the detection period of the Physical Downlink Control Channel (PDCCH) related to DCI format 2 \0, L is equal to maxnrof slotsetformationslorsert; if the value of maxnrof slotformatcombinationspersset is smaller than the PDCCH detection period related to DCI format 2_0, then L is taken to be equal to the period. The PDCCH detection period related to DCI format 2_0 may be, for example, 10 slots long.
Preferably, the timeslot structure indicator indicates that symbols in the L timeslots are a combination of an uplink symbol, a downlink symbol, and a flexible symbol. Each slot contains M symbols (e.g., M = 14), and each symbol is used for uplink, downlink, or flexible purposes. For example, as described in 3gpp TS38.213, table 11.1.1, section 11.1-1, the symbols in each slot are divided into three classes: the downlink symbol (marked as D), the uplink symbol (marked as U) and the flexible symbol (marked as F) support at most 256D/U/F configuration modes.
With respect to the time interval (Δ t) between the first and second time slots. Optionally, the Δ t duration is preconfigured by the network device to the terminal device. For example, the network device indicates reference information indicating the Δ t duration to the terminal device by broadcast information. There may be multiple terminal devices in the network, and the network device may determine the reference information according to a maximum value of transmission delay between each terminal device and the network device. Or, the network device determines the indication information of the delta t duration according to the transmission delay between the terminal device and the network device, and indicates the indication information to the terminal device through the information special for the terminal device.
Preferably, the set time duration is not less than twice the time delay, where the time delay refers to the time difference between the time slot structure indication information being received and the time slot structure indication information being transmitted.
Further, the set time length is used as an uplink information Timing Advance (TA); the uplink information timing advance is an advance of a time unit start time for transmitting uplink data relative to a time unit start time for receiving downlink data. The "time unit" herein refers to a standard time duration for carrying uplink data or downlink data, such as a symbol time duration, a time slot or a structure of multiple time slots, and is not particularly limited. For example, when the Δ t is determined according to the timing advance of the terminal device, the network device indicates the timing advance to the terminal device, and the timing advance of the terminal device may be used to determine an advance between the timing time when the terminal device sends the uplink information and the timing time when the terminal device receives the downlink information.
The Δ t duration may be expressed in units of slot length, for example, as how many slots are separated between the first slot and the second time. Assume that the at duration comprises X slot lengths. The SFI sent by the network device to the terminal device includes the timeslot configurations of L timeslots starting from X timeslots after the SFI sending time, and the value of X is related to the air propagation delay of the network device and the terminal device. X is an integer greater than 0.
As shown in fig. 2, when the slot structure indication information of DCI format 2_0 is used, the time difference between the time slot in which the indication information is located and the start position of the time slot of the indicated slot structure is not less than the advance of uplink transmission of the terminal device. That is, it is preferable that Δ t is not less than the timing advance of the terminal device.
Further, the delay is a maximum value of transmission delays between the network device and the plurality of terminal devices, or the delay is a transmission delay between the network device and one terminal device.
Fig. 3 is a flowchart of an embodiment of the method of the present application for a network device.
Further, the method of the embodiment of the present application is applied to a network device, and includes the following steps 201 to 203.
The time slot structure indication information is used for indicating the direction structure configuration of L time slots from the second time slot; in a first time slot, the time slot structure indication information is received by a terminal device; the time interval between the second time slot and the first time slot is not less than the set duration; the set duration is not less than the length of 1 time slot (L is an integer greater than 0).
Preferably, the timeslot structure indicator indicates that symbols in the L timeslots are combinations of uplink symbols, downlink symbols, and flexible symbols. Specifically, each of the slot structure indicators indicates that at least one symbol in the L slots is an uplink symbol, a downlink symbol, or a flexible symbol.
The time slot structure indication information sent to the terminal equipment by the network equipment comprises time slot configuration of L time slots starting from X time slots after the time slot structure indication sending moment, and the value of X is related to the air propagation delay from the network equipment to the terminal equipment. X is an integer greater than 0.
For example, the slot structure indication information is carried by semi-static configuration (RRC) signaling. The RRC configuration supports two modes, namely cell specific RRC configuration and terminal equipment specific RRC configuration. Wherein the configuration of the UE-specific can only configure the flexible symbols. At least a part of the symbols in the slot structure are configured and/or at least a part of the symbols are not configured by higher layer signaling.
For another example, the timeslot structure indication information is carried by downlink control signaling. Two ways of direct SFI indication and DCI scheduling decision can be implemented by DCI format 2_0. The SFI implements a periodic frame structure configuration mainly according to a supported slot format of a single slot. At least one part of symbols in the time slot structure are configured and/or at least one part of symbols are not configured through downlink control signaling
The timeslot structure indication information may also be combined by a semi-static configuration signaling and a downlink control signaling, and may be, for example:
uplink and downlink symbols of the semi-static uplink and downlink configuration cannot be modified, and flexible symbols of the semi-static uplink and downlink configuration can be configured by semi-static configuration, dynamic SFI and DCI;
or:
uplink and downlink symbols in the semi-static channel quality measurement configuration can be changed by the dynamic SFI and DCI configuration, once the change occurs, the behavior related to the semi-static channel quality measurement is terminated;
or:
the data transmission of the DCI configuration cannot collide with the uplink and downlink symbols of the SFI configuration, but the flexible part of the SFI configuration can be changed.
It should be noted that the symbols allocated by the SFI as uplink shall not be used for other DCI format scheduling to receive PDSCH or CSI-RS. The symbols allocated as downlink by DCI format 2_0 should not be scheduled by other DCI formats for transmitting PUSCH, PUCCH, PRACH or SRS. Symbols configured as uplink or downlink by higher layer signaling are not expected to be configured as reverse direction or flexible symbols by SFI.
It should be noted that, the symbol configured as a flexible symbol or an unconfigured symbol by the higher layer signaling needs to be considered at least as follows:
only when the SFI indication is a downlink symbol, if one or more symbols are configured for PDCCH monitoring, the symbol is used for transmitting PDCCH;
for the flexible symbol indicated by the SFI, the DCI may be used to transmit the PDSCH or CSI-RS, or the DCI may be used to transmit the PUSCH, PUCCH, PRACH, or SRS;
SFI indication is a flexible symbol that may not be used to send or receive data;
type 0SRS, PUCCH, scheduling-free PUSCH or PRACH triggered by a higher layer are only transmitted in the symbols which are configured to be uplink by SFI.
For example, the network device sends time indication information indicating Δ t duration to the terminal device through broadcast information; alternatively, the network device indicates to the terminal device via information specific to the terminal device.
As an alternative embodiment, the network device uses a preset value as the time interval.
Further, the set time length is used as an uplink information Timing Advance (TA); the uplink information timing advance is an advance of a time unit start time for transmitting uplink data relative to a time unit start time for receiving downlink data. The timing advance may be, for example, a time difference between uplink data transmission by the UE in an uplink symbol and downlink data reception in a downlink symbol, or a time difference between a start time of the directional configuration of the L slots for uplink data transmission by the UE and a start time of the directional configuration of the L slots for downlink data reception.
And when the delta t is determined according to the timing advance of the terminal equipment, the delta t is indicated to the terminal equipment by the network equipment. The timing advance of the terminal device may be used to determine an advance between a timing time when the terminal device transmits the uplink information and a timing time when the terminal device receives the downlink information. When the timing time is the starting time configured for the L time slot direction structures, the timing advance may be an amount of time that is advanced by the starting time configured for the direction structure of the uplink data of the terminal device on the basis of the second time slot. Preferably, the set duration is not less than twice the delay, where the delay refers to a time difference between the time slot structure indication information transmitted by the network device and the time slot structure indication information received by the terminal device.
Further, the delay is a maximum value of transmission delays between the network device and the plurality of terminal devices. There may be multiple terminal devices in the network, and the network device may determine the time indication information according to a maximum value of transmission delay between each terminal device and the network device.
Or, the delay is a transmission delay between the network device and a terminal device. The network equipment determines the delta t duration according to the transmission delay between the terminal equipment and the network equipment, and indicates the time indication information to the terminal equipment through the information special for the terminal equipment.
After the network device sends the timeslot structure indication information, according to the timeslot structure indication information, the network device uses the directional structure configuration of the L timeslots, that is, according to the directional structure configuration indicated by the timeslot structure indication information, the network device receives uplink data and sends downlink data, or completes the processes of measurement, reporting, and the like.
The time interval for the network equipment to send the time slot structure indication information and the downlink data is not less than the set duration; preferably, the interval between the frame timing of the network device for transmitting the timeslot structure and the frame timing of the downlink data is equal to the time interval between the first timeslot and the second timeslot.
Preferably, the time interval between the network device sending the timeslot structure indication information and receiving the uplink data is not less than the set duration; preferably, the interval between the frame timing of the network device for transmitting the timeslot structure and the frame timing for receiving uplink data is equal to the time interval between the first timeslot and the second timeslot.
Fig. 4 is a flowchart of an embodiment of the method of the present application for a terminal device.
Further, the method of the embodiment of the present application is applied to a terminal device, and includes steps 301 to 303.
In step 301, the terminal device receives timeslot format indication information in a first timeslot, where the timeslot structure indication information is used to indicate directional structure configuration of L timeslots starting from a second timeslot; the time interval between the second time slot and the first time slot is not less than a set time length.
And the terminal equipment configures indication information of the time slot structure during blind detection according to the PDCCH search space configuration and the CORESET configuration corresponding to the time slot structure indication, and supposing that the time slot structure indication information is detected in the first time slot.
The timeslot structure indication information is the same as the foregoing embodiment, and is not described again here.
as a further optimized embodiment, the terminal device receives time indication information; the time indication information is used for indicating the time interval. As an alternative embodiment, the terminal device uses a preset value as the time interval.
For example, the terminal device receives the broadcast information to obtain time indication information representing the Δ t duration; or the terminal equipment obtains the time indication information through information which is sent by network equipment and is specially used for the terminal equipment.
The time interval between the second time slot and the first time slot is not less than the set duration; the value of the set duration is as in the previous embodiment, and is not described herein again.
For example, the terminal device receives semi-static configuration (RRC) signaling and obtains the timeslot structure indication information. At least a part of the symbols in the slot structure are configured and/or at least a part of the symbols are not configured by higher layer signaling.
For another example, the terminal device receives the downlink control signaling, and obtains the timeslot structure indication information. The downlink control signaling can be implemented by DCI format 2_0 in two ways, namely direct SFI indication and DCI scheduling decision. Through downlink control signaling, at least a part of symbols in the slot structure are configured and/or at least a part of symbols are not configured.
In step 303, the terminal device determines the directional structure configuration of the L timeslots according to the timeslot structure indication information.
The terminal equipment can determine the structure of the current time slot before sending the uplink data, thereby avoiding the problem that the terminal equipment can not finish the related processes of the physical layer, such as measurement, scheduling, information detection, sending and the like according to the indication of the SFI.
The timeslot structure indication indicates that at least one symbol in the L timeslots is an uplink symbol, a downlink symbol, or a flexible symbol. Preferably, the timeslot structure indicator indicates that each symbol in the L timeslots is an uplink symbol, a downlink symbol, or a flexible symbol, respectively.
Each slot contains M symbols (e.g., M = 14), and the usage of each symbol is classified into three categories, as described in table 11.1.1-1 of section 11.1.1 of 3gpp ts 38.213: downlink symbols (marked as D), uplink symbols (marked as U) and flexible symbols (marked as F), and at most 256D/U/F configuration modes are supported.
When the time slot structure indication information is in a mode of combining the semi-static configuration signaling and the downlink control signaling, the terminal equipment judges the received time slot structure indication information and determines the type of the symbol in each time slot.
For example:
and if the high-layer signaling configures the reception of the CSI-RS or the PDSCH, the terminal equipment receives the CSI-RS and the PDSCH only in the symbol which detects that the SFI is indicated to be downlink. If the higher layer signaling configures type 0SRS, PUCCH, scheduling-free PUSCH or PRACH transmission, the terminal equipment only transmits type 0SRS, PUCCH, scheduling-free PUSCH or PRACH when detecting the symbol indicated as uplink by SFI or the symbol having a part indicated as downlink or flexible by SFI but in a period of time from the last symbol of CORSET carrying SFI. If the terminal device does not detect that the SFI indicates that a plurality of symbols in one slot are flexible or uplink, the terminal device assumes that the symbols in the CORESET, which are configured for the terminal device to perform PDCCH monitoring, are downlink symbols.
When the high-layer signaling is configured to be a flexible symbol or an unconfigured symbol, but the terminal device does not monitor the SFI, at least the following conditions are considered:
the terminal equipment receives the DCI indication or the PDSCH or CSI-RS configured by the high-level signaling, and performs corresponding receiving operation;
and the terminal equipment receives the DCI indication or the PUSCH, PUCCH, PRACH or SRS transmission configured by the high-level signaling, and performs corresponding transmission operation.
And when the terminal equipment is configured by the high-layer signaling to receive the PDCCH, the PDSCH or the CSI-RS, but the DCI is not configured to transmit the PUSCH, the PUCCH, the PRACH or the SRS in an uplink manner, the terminal equipment receives the PDCCH, the PDSCH or the CSI-RS corresponding to the high-layer configuration. Otherwise, the terminal equipment does not receive the PDCCH, the PDSCH or the CSI-RS, and carries out uplink transmission of the PUSCH, the PUCCH, the PRACH or the SRS.
And step 304, the terminal equipment sends uplink data and receives downlink data according to the direction structure configuration indicated by the time slot structure indication information.
And the terminal equipment receives downlink data by using the directional structure configuration of the L time slots from the second time slot.
And the terminal equipment receives the time slot structure indication information in the first time slot and determines the direction structure configuration of the L time slots. Namely, according to the time slot structure indication information, receiving uplink data, sending downlink data, or completing the processes of measurement, reporting and the like.
The terminal device is further configured to send uplink data after the first time slot and before the second time slot by using the directional structure configuration of the L time slots. And configuring the starting time for sending the uplink data by using the direction structure in the L time slots by using the timing advance as the advance on the basis of a second time slot by the terminal equipment.
Fig. 5 is a schematic diagram of an embodiment of a network device.
An embodiment of the present application further provides a network device, where, using the method according to any one of the embodiments of the present application, the network device is configured to: and sending the time slot structure indication information. Further, the network device is further configured to send time indication information; the time indication information is used to indicate the time interval, i.e. the time interval between the first time slot and the second time slot (Δ t duration). The network equipment indicates delta t duration through broadcast information; or the network device indicates the time duration of delta t through information special for the terminal device.
In order to implement the foregoing technical solution, the network device 400 provided in the present application includes a network sending module 401, a network determining module 402, and a network receiving module 403. And the network sending module is configured to generate the timeslot structure indication information and/or the time indication, and send the downlink control information (including SFI and/or DCI scheduling information). The network determining module is configured to determine a directional structure configuration for receiving the uplink data and sending the downlink data, and is further configured to determine a time unit for receiving the uplink data and a time unit for sending the downlink data. And the network receiving module is used for receiving uplink data. The network receiving module is further configured to receive the higher layer signaling (i.e., semi-static configuration signaling RRC).
The specific method for implementing the functions of the network sending module, the network determining module, and the network receiving module is described in the embodiments of the methods shown in fig. 1 to 4 of the present application, and is not described herein again.
Fig. 6 is a schematic diagram of an embodiment of a terminal device.
The present application further provides a terminal device, and with the method according to any of the embodiments of the present application, the terminal device is configured to receive the timeslot structure indication information.
The terminal device is configured to receive the timeslot structure indication information in a first timeslot, where the timeslot structure indication information is used to indicate a timeslot structure of L timeslots starting from a second timeslot; and the terminal equipment receives downlink data by using the directional structure configuration of the L time slots from the second time slot. The terminal device is further configured to determine, according to the timeslot structure indication information, a directional structure configuration of starting L timeslots of the second timeslot.
I.e. the time interval between the first time slot and the second time slot (delta t duration) is pre-configured to the terminal device. Or, further, the terminal device is further configured to receive time indication information; the time indication information is used for indicating the time interval, for example, the terminal device receives a delta t duration through broadcast information; or the terminal device receives the delta t duration through the information special for the terminal device. Optionally, the Δ t duration is determined according to the timing advance of the terminal device. Alternatively, the Δ t duration may be expressed in units of a slot length, for example, as how many slots are separated between the first slot and the second time.
And the terminal equipment takes the timing advance as the time for advancing the frame timing of the uplink data of the terminal equipment on the basis of a second time slot.
In order to implement the foregoing technical solution, the terminal device 500 provided in the present application includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503. The terminal receiving module is used for receiving the downlink control information (including SFI andor DCI scheduling information), and identifying the time slot structure indication information andor time indication information; the terminal receiving module is further configured to receive the high layer signaling (i.e., semi-static configuration signaling RRC). And the terminal determining module is used for determining the direction structure configuration, the time unit for sending the uplink data and the time unit for receiving the downlink data. And the terminal sending module is used for sending the uplink data.
The specific method for implementing the functions of the terminal sending module, the terminal determining module and the terminal receiving module is described in the embodiments of the methods shown in fig. 1 to 4 of the present application, and is not described herein again.
The terminal equipment can be mobile terminal equipment.
Based on the embodiments of fig. 5 to 6, the present application further provides a mobile communication system, which includes at least 1 embodiment of any terminal device in the present application and/or at least 1 embodiment of any network device in the present application.
Fig. 7 is a schematic structural diagram of a network device according to another embodiment of the present invention. As shown in fig. 7, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Wherein the wireless interface may be a plurality of components, i.e. including a transmitter and a receiver, providing means for communicating with various other apparatus over a transmission medium. The wireless interface implements a communication function with the terminal device, and processes wireless signals through the receiving and transmitting devices, and data carried by the signals are communicated with the memory or the processor through the internal bus structure. The memory 603 contains a computer program for performing any of the embodiments of fig. 1 to 3 of the present application, which computer program runs or is adapted on the processor 601. When the memory, processor, wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described herein.
Fig. 8 is a block diagram of a terminal device of another embodiment of the present invention. The terminal device 700 shown in fig. 8 comprises at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in the terminal device 700 are coupled together by a bus system. A bus system is used to enable connection communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.
The user interface 703 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch pad, or a touch screen, among others.
The memory 702 stores executable modules or data structures. The memory may have stored therein an operating system and an application program. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application programs include various application programs such as a media player, a browser, and the like for implementing various application services.
In the embodiment of the present invention, the memory 702 contains a computer program for executing any one of the embodiments of fig. 1 to 3 of the present application, and the computer program runs or changes on the processor 701.
The memory 702 contains a computer readable storage medium, and the processor 701 reads the information in the memory 702 and combines the hardware to complete the steps of the above method. In particular, the computer-readable storage medium has stored thereon a computer program which, when executed by the processor 701, performs the steps of the method embodiment as described above with reference to any one of the embodiments of fig. 1 to 4.
The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method of the present application may be implemented by integrated logic circuits in hardware or instructions in software in the processor 701. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention 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 the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In a typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and a memory.
Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application therefore also proposes a computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the present application. For example, the memory 603, 702 of the present invention may comprise volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM).
Computer-readable media, including both permanent and non-permanent, removable and non-removable media, may implement the information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus comprising the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (18)
1. A transmission time slot structure indication method is used for network equipment and is characterized in that the network equipment sends time slot structure indication information;
the time slot structure indication information is used for indicating the direction structure configuration of L time slots starting from the second time slot, wherein L is more than or equal to 1;
receiving the slot structure indication information in a first slot;
the time interval between the second time slot and the first time slot is not less than the set duration;
the set time length is not less than the length of 1 time slot and not less than twice time delay, wherein the time delay refers to the time difference between the time slot structure indication information being received and the time slot structure indication information being sent;
the set time length is used as the timing advance of the uplink information; the uplink information timing advance is the advance of the starting time of a time unit for sending uplink data relative to the starting time of a time unit for receiving downlink data;
the network device starts to use the directional structure configuration of the L slots after the time interval elapses from the transmission of the slot structure indication information.
2. The transmission slot structure indication method of claim 1, wherein the network device transmits time indication information; the time indication information is used for indicating the time interval.
3. The transmission slot structure indication method of claim 1, wherein the network device uses a preset value as the time interval.
4. The transmission slot structure indication method of claim 1,
the directional structure configuration indicates that the symbols in the L time slots are any combination of uplink symbols, downlink symbols, and flexible symbols.
5. The transmission slot structure indication method of claim 1,
the delay is the maximum value of the transmission delay between the network device and the plurality of terminal devices, or,
the delay is a transmission delay between the network device and a terminal device.
6. A transmission time slot structure indication method is used for terminal equipment and is characterized in that the terminal equipment receives time slot structure indication information;
the time slot structure indication information is used for indicating the direction structure configuration of L time slots from the second time slot, wherein L is more than or equal to 1;
receiving the slot structure indication information in a first slot;
the time interval between the second time slot and the first time slot is not less than the set duration;
the set time length is not less than the length of 1 time slot and not less than twice time delay, wherein the time delay refers to the time difference between the time slot structure indication information being received and the time slot structure indication information being sent;
the set time length is used as the timing advance of the uplink information; the uplink information timing advance is the advance of the starting time of a time unit for sending uplink data relative to the starting time of a time unit for receiving downlink data;
the terminal equipment uses the direction structure configuration of the L time slots to send uplink data after the first time slot and before the second time slot; and the terminal equipment receives downlink data by using the directional structure configuration of the L time slots from the second time slot.
7. The transmission slot structure indication method of claim 6, wherein the terminal device receives time indication information; the time indication information is used for indicating the time interval.
8. The transmission slot structure indication method of claim 6, wherein the terminal device uses a preset value as the time interval.
9. The transmission slot structure indication method of claim 6,
the directional structure configuration indicates that the symbols in the L time slots are any combination of uplink symbols, downlink symbols and flexible symbols.
10. The transmission slot structure indication method of claim 6,
the delay is the maximum value of the transmission delay between the network device and the plurality of terminal devices, or,
the delay is a transmission delay between the network device and a terminal device.
11. A network device for implementing the method of any one of claims 1 to 5, comprising a network sending module, a network determining module and a network receiving module; the network sending module is used for generating the time slot structure indication information; the network determining module is used for determining the direction structure configuration for receiving the uplink data and sending the downlink data; and the network receiving module is used for receiving uplink data.
12. The network device of claim 11, wherein the network device is further configured to send time indication information; the time indication information is used for indicating the time interval.
13. A network device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the method according to any one of claims 1 to 5.
14. A terminal device, configured to implement the method according to any one of claims 6 to 10, and comprising a terminal sending module, a terminal determining module, and a terminal receiving module; the terminal receiving module is used for identifying the time slot structure indication information; the terminal determining module is used for determining the direction structure configuration; and the terminal sending module is used for sending uplink data.
15. The terminal device of claim 14, wherein the terminal device is further configured to receive time indication information; the time indication information is used for indicating the time interval.
16. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any one of claims 6 to 10.
17. A mobile communication system comprising a network device as claimed in any one of claims 11 to 13 and at least one terminal device as claimed in any one of claims 14 to 16.
18. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 10.
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| CN202010089096.9A CN113260053B (en) | 2020-02-12 | 2020-02-12 | Transmission time slot structure indication method and equipment |
| PCT/CN2021/076111 WO2021160102A1 (en) | 2020-02-12 | 2021-02-08 | Transmission slot structure indication method and devices |
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| CN116266950A (en) * | 2021-12-15 | 2023-06-20 | 中国移动通信有限公司研究院 | Uplink transmission method, device, network node and storage medium |
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| CN109788562A (en) * | 2017-11-15 | 2019-05-21 | 华为技术有限公司 | A kind of transmission method of uplink information, the first communication equipment and the second communication equipment |
| CN110035517A (en) * | 2018-01-12 | 2019-07-19 | 华为技术有限公司 | A kind of transmission method and device indicating information |
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| CN101572945B (en) * | 2008-04-29 | 2011-08-24 | 中国移动通信集团公司 | Method and device for confirming sending resource of channel quality indication |
| CN113543353A (en) * | 2017-03-24 | 2021-10-22 | 北京三星通信技术研究有限公司 | Method and equipment for sending and receiving uplink data |
| TWI672066B (en) * | 2017-08-10 | 2019-09-11 | 華碩電腦股份有限公司 | Method and apparatus for handling sfi (slot format information) collision in a wireless communication system |
| EP4054109B1 (en) * | 2018-01-12 | 2023-05-24 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Resource configuration method and apparatus |
| US10993216B2 (en) * | 2018-04-06 | 2021-04-27 | Intel Corporation | Flexible slot format indication (SFI) monitoring for new radio unlicensed communications |
| CN109156014B (en) * | 2018-08-15 | 2021-11-09 | 北京小米移动软件有限公司 | Time slot format indicating method, device, equipment, system and storage medium |
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| CN109788562A (en) * | 2017-11-15 | 2019-05-21 | 华为技术有限公司 | A kind of transmission method of uplink information, the first communication equipment and the second communication equipment |
| CN110035517A (en) * | 2018-01-12 | 2019-07-19 | 华为技术有限公司 | A kind of transmission method and device indicating information |
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