WO2024016347A1 - Procédé de communication et appareil de communication - Google Patents

Procédé de communication et appareil de communication Download PDF

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Publication number
WO2024016347A1
WO2024016347A1 PCT/CN2022/107490 CN2022107490W WO2024016347A1 WO 2024016347 A1 WO2024016347 A1 WO 2024016347A1 CN 2022107490 W CN2022107490 W CN 2022107490W WO 2024016347 A1 WO2024016347 A1 WO 2024016347A1
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Prior art keywords
channel
sub
uplink
time window
information
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PCT/CN2022/107490
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English (en)
Chinese (zh)
Inventor
邢金强
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Oppo广东移动通信有限公司
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Priority to PCT/CN2022/107490 priority Critical patent/WO2024016347A1/fr
Publication of WO2024016347A1 publication Critical patent/WO2024016347A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication technology, and more specifically, to a communication method and a communication device.
  • fixed uplink and downlink time slot configurations can be used in the same spectrum (such as the same channel).
  • the terminal equipment can perform uplink transmission in the uplink time slot and transmission in the downlink time slot. Downstream transmission.
  • Embodiments of the present application provide a communication method and a communication device. Various aspects involved in the embodiments of this application are introduced below.
  • a communication method including: a terminal device communicates with a network device through a first sub-channel, the first sub-channel occupies part of the frequency domain resources of the first channel, and the first sub-channel is The uplink and downlink configuration in a time window is different from the uplink and downlink configuration of the first channel in the first time window, and the first time window includes one or more time units.
  • a communication method including: a network device communicates with a terminal device through a first sub-channel, the first sub-channel occupies part of the frequency domain resources of the first channel, the first sub-channel is The uplink and downlink configuration in a time window is different from the uplink and downlink configuration of the first channel in the first time window, and the first time window includes one or more time units.
  • a communication device including: a communication unit configured to communicate with a network device through a first sub-channel, where the first sub-channel occupies part of the frequency domain resources of the first channel.
  • the uplink and downlink configuration of the channel in the first time window is different from the uplink and downlink configuration of the first channel in the first time window, and the first time window includes one or more time units.
  • a communication device including: a communication unit configured to communicate with a terminal device through a first sub-channel, where the first sub-channel occupies part of the frequency domain resources of the first channel, and the first sub-channel occupies part of the frequency domain resources of the first channel.
  • the uplink and downlink configuration of the subchannel in the first time window is different from the uplink and downlink configuration of the first channel in the first time window, and the first time window includes one or more time units.
  • a communication device including a memory, a transceiver and a processor.
  • the memory is used to store programs.
  • the processor performs data transmission and reception through the transceiver.
  • the processor is used to call the memory.
  • a communication device including a memory, a transceiver and a processor.
  • the memory is used to store programs.
  • the processor transmits and receives data through the transceiver.
  • the processor is used to call the memory.
  • a seventh aspect provides a communication device, including a processor for calling a program from a memory, so that the communication device executes the method described in the first aspect.
  • An eighth aspect provides a communication device, including a processor for calling a program from a memory, so that the communication device executes the method described in the second aspect.
  • a chip including a processor for calling a program from a memory, so that a device equipped with the chip executes the method described in the first aspect.
  • a chip including a processor for calling a program from a memory, so that a device installed with the chip executes the method described in the second aspect.
  • a computer-readable storage medium is provided, with a program stored thereon, and the program causes a computer to execute the method described in the first aspect.
  • a computer-readable storage medium is provided, with a program stored thereon, and the program causes the computer to execute the method described in the second aspect.
  • a computer program product including a program that causes a computer to execute the method described in the first aspect.
  • a fourteenth aspect provides a computer program product, including a program that causes a computer to execute the method described in the second aspect.
  • a computer program is provided, the computer program causing a computer to execute the method described in the first aspect.
  • a computer program is provided, the computer program causing a computer to execute the method described in the second aspect.
  • the uplink and downlink configuration of the first sub-channel in the first time window is different from the uplink and downlink configuration of the first channel in the first time window, and the terminal device communicates with the network device through the first sub-channel, Helps meet the needs of end devices.
  • Figure 1 is an example diagram of a wireless communication system applied in the embodiment of the present application.
  • FIG. 2 is a schematic diagram of the uplink and downlink configuration of the TDD system in the embodiment of the present application.
  • Figure 3 is a schematic flow chart of a communication method provided by an embodiment of the present application.
  • Figure 4 is a schematic diagram of sub-channel division in an embodiment of the present application.
  • Figure 5 is a schematic diagram of another sub-channel division in an embodiment of the present application.
  • Figure 6 is a schematic diagram of yet another sub-channel division in an embodiment of the present application.
  • Figure 7 is a schematic diagram of yet another sub-channel division in an embodiment of the present application.
  • Figure 8 is a schematic diagram of yet another sub-channel division in an embodiment of the present application.
  • Figure 9 is a schematic diagram of yet another sub-channel division in an embodiment of the present application.
  • Figure 10 is a schematic diagram of yet another sub-channel division in an embodiment of the present application.
  • Figure 11 is a schematic diagram of yet another sub-channel division in an embodiment of the present application.
  • Figure 12 is a schematic diagram showing that the sub-channel in the embodiment of the present application is applicable to all terminal equipment in the cell.
  • Figure 13 is a schematic diagram showing that the sub-channels in the embodiment of the present application are applicable to some terminal equipment in the cell.
  • Figure 14 is a schematic diagram of terminal equipment transceiver under sub-channel division in an embodiment of the present application.
  • Figure 15 is a schematic diagram of terminal equipment transceiver under another sub-channel division in an embodiment of the present application.
  • Figure 16 is a schematic diagram of terminal equipment transceiver under yet another sub-channel division in this embodiment of the present application.
  • Figure 17 is a schematic diagram of terminal equipment transceiver under yet another sub-channel division in this embodiment of the present application.
  • Figure 18 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 19 is a schematic structural diagram of a communication device provided by another embodiment of the present application.
  • Figure 20 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • FIG. 1 is a wireless communication system 100 applied in the embodiment of the present application.
  • the wireless communication system 100 may include a network device 110 and a user equipment (user equipment, UE) 120.
  • Network device 110 may communicate with UE 120.
  • Network device 110 may provide communications coverage for a particular geographic area and may communicate with UEs 120 located within the coverage area.
  • UE 120 may access a network (such as a wireless network) through network device 110.
  • Figure 1 exemplarily shows one network device and two UEs.
  • the wireless communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.
  • the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • the UE in the embodiment of this application may also be called terminal equipment, access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (mobile Terminal, MT), remote station, remote terminal , mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the UE in the embodiment of this application may refer to a device that provides voice and/or data connectivity to users, and may be used to connect people, things, and machines, such as handheld devices, vehicle-mounted devices, etc. with wireless connection functions.
  • the UE in the embodiment of this application may be a mobile phone (mobile phone), tablet computer (Pad), notebook computer, handheld computer, mobile Internet device (mobile internet device, MID), wearable device, virtual reality (VR) ) equipment, augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, smart grids Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.
  • the UE may be used to act as a base station.
  • a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc.
  • cell phones and cars use sidelink signals to communicate with each other.
  • Cell phones and smart home devices communicate between each other without having to relay communication signals through base stations.
  • the network device in the embodiment of the present application may be a device used to communicate with the UE.
  • the network device may also be called an access network device or a wireless access network device.
  • the network device may be a base station.
  • the network device in the embodiment of this application may refer to a radio access network (radio access network, RAN) node (or device) that connects the UE to the wireless network.
  • radio access network radio access network, RAN node (or device) that connects the UE to the wireless network.
  • the base station can broadly cover various names as follows, or be replaced with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmitting point (TP), main station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network controller, access node , wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), radio remote unit (Remote Radio Unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc.
  • the base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof.
  • network equipment may be fixed or mobile.
  • a helicopter or drone may be configured to act as a mobile network device, and one or more cells may move based on the location of the mobile network device.
  • a helicopter or drone may be configured to serve as a device that communicates with another network device.
  • the network device may refer to a CU or a DU, or the network device may include a CU and a DU, or the network device may also include an AAU.
  • network equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on water; it can also be deployed on aircraft, balloons and satellites in the sky.
  • network devices there are no limitations on the network devices and the scenarios in the embodiments of this application.
  • fixed uplink and downlink configurations can be used in the same spectrum (such as the same channel).
  • the terminal device can perform uplink transmission in the uplink time slot and perform downlink transmission in the downlink time slot.
  • TDD time division duplex
  • the terminal equipment transmits and receives on the same spectrum (such as the same channel), and the transmission and reception are staggered in time.
  • the uplink and downlink configuration of a typical TDD system can be as shown in Figure 2.
  • “U” in Figure 2 represents the uplink time slot
  • D represents the downlink time slot.
  • the following embodiments of this application "U” and “D” in the drawings have the same meaning, and will not be described again in subsequent embodiments.
  • the uplink time slots and downlink time slots of the same channel are staggered in time.
  • TDD systems Under normal circumstances, since download services are more than upload services, TDD systems usually allocate more time slots to the downlink in the same channel to meet the needs of download services. This is reasonable to a certain extent, but at the same time, the problem it brings is that the time interval between terminal transmission time slots will be very long. For example, when the terminal device has uplink services, it may need to wait for a long time for the uplink time slot before performing uplink transmission in the uplink time slot. This causes the uplink delay of the terminal device to be very large, which cannot meet scenarios that require high uplink delay or have a large business volume.
  • the TDD system allocates more time slots to the uplink within a channel to meet the needs of large uplink services, then the downlink services of terminal equipment with relatively large downlink services may not be satisfied.
  • this application proposes a communication method and a communication device.
  • FIG. 3 is a schematic flow chart of the communication method according to the embodiment of the present application.
  • the method 300 shown in Figure 3 may include step S310, specifically as follows:
  • the terminal device communicates with the network device through the first sub-channel.
  • the first sub-channel may occupy part of the frequency domain resources of the first channel.
  • Figure 4 is an example of sub-channel division in this application. Part of the frequency domain resources can be divided into the spectrum of channel 0 as sub-channel 1 (sub-channel 1 is equivalent to the first sub-channel).
  • the uplink and downlink configuration of the first sub-channel in the first time window may be different from the uplink and downlink configuration of the first channel in the first time window.
  • the different uplink and downlink configurations mentioned here can also be understood as: there is at least one time unit in the first time window, and in this time unit, the uplink and downlink transmission directions of the first subchannel and the first channel are different.
  • the first time window may include one or more time units.
  • the number of time units included in the multiple first time windows in the time domain may be the same or different.
  • the first time window may be a preset period.
  • the time unit can be a slot.
  • each of the figures in this application takes the first time window as a period including 6 time slots as an example.
  • the uplink and downlink configuration of channel 0 is 2U4D, that is, the first and sixth time slots are "U", and the remaining time slots are "D".
  • Channel 0 can be used for high downlink business.
  • 5U1D can be configured for subchannel 1, that is, the third time slot is "D” and the remaining time slots are "U” so that subchannel 1 can be used for high uplink services.
  • the remaining spectrum in channel 0 can be used as sub-channel 2
  • the uplink and downlink configuration of the original channel 0 that is, 2U4D
  • the uplink and downlink configuration of the first sub-channel in the first time window is different from the uplink and downlink configuration of the first channel in the first time window, and the terminal device communicates with the network device through the first sub-channel, Helps meet the needs of end devices.
  • the first channel may include the first sub-channel in each time unit in the time domain.
  • the first channel may include the first sub-channel in each time unit of the first time window.
  • the first sub-channel may not be configured or activated in a second time window.
  • the second time window may include one or more time units.
  • the second time window is different from the first time unit.
  • the windows can be non-overlapping or partially overlapping in the time domain.
  • the spectrum occupied by the first sub-channel (not configured or activated) can be reserved and not used for transmission of the entire channel. In this way, implementation is relatively simple.
  • the first channel may include the first sub-channel in a partial time unit in the time domain.
  • the time unit not including the first subchannel may be that the first subchannel is not configured or activated. That is to say, in the time unit that does not include the first sub-channel, the spectrum occupied by the (unconfigured or inactive) first sub-channel can be released for the transmission of the entire channel. In this way, the spectrum can be improved. Resource utilization.
  • the uplink and downlink configuration of the first subchannel in the first time window may be the same as the uplink and downlink configuration in the third time window, or the uplink and downlink configuration of the first subchannel in the first time window may be the same as the uplink and downlink configuration in the third time window.
  • the uplink and downlink configurations in the third time window can also be different.
  • the third time window may include one or more time units, and the third time window and the first time window may not overlap or partially overlap in the time domain.
  • the above embodiment describes the characteristics of sub-channels in the time domain.
  • the sub-channels are further introduced below in combination with various different division methods.
  • Method 1 Divide sub-channels based on a fixed method
  • sub-channel 1 can be divided into channel 0 in each time unit.
  • the remaining spectrum in channel 0 can be used as sub-channel 2.
  • the uplink and downlink configuration of 5U1D can be configured for sub-channel 1.
  • the uplink and downlink configuration of the original channel 0 can be configured for sub-channel 2, that is, 2U4D.
  • sub-channel 1 can also be configured or activated when there is a need, for example, the terminal device requests or the base station actively configures it.
  • sub-channel 1 may be configured and activated within a first time window (such as a period), while sub-channel 1 may not be configured or activated within the second time window.
  • Subchannel 1 can be reconfigured and activated within the third time window.
  • the corresponding spectrum can be processed by the following two methods:
  • Method 1 Release the spectrum occupied by sub-channel 1 for transmission of the entire channel (the uplink and downlink time configuration follows the basic configuration of the entire channel (ie, channel 0), which is equal to the configuration of sub-channel 2 in Figure 6).
  • Method 2 The spectrum occupied by sub-channel 1 will still be reserved and will not be used for transmission of the entire channel.
  • the length of the second time window in Figure 6 may or may not be equal to the period length, that is, the configuration or activation starting time point of sub-channel 1 may be fixed (such as periodic) or arbitrary of.
  • Method 3 Divide sub-channels based on different uplink and downlink configurations
  • the time slot configuration (such as the uplink and downlink configuration) of the subchannels in each time window in the above-mentioned Figures 5 and 6 is the same, and this can be extended to a manner in which the time slot configuration is adjustable. As shown in Figures 7 and 8, the time slot configuration (such as the uplink and downlink ratio) in each time window can be different.
  • a channel including two sub-channels is taken as an example.
  • the number of sub-channels divided into the channel is not limited.
  • a separate sub-channel 3 can also be additionally configured to solve the problem.
  • the uplink sub-channel (or downlink sub-channel) can be defined only in the downlink time slot of channel 0.
  • the downlink sub-channel (or uplink sub-channel) may also be defined only in the uplink time slot of channel 0.
  • the above embodiment describes the division of sub-channels in detail.
  • the following describes various ways of requesting, configuring, and changing sub-channels.
  • Method 1 Configuration method based on terminal device request
  • the terminal device When the terminal device requires uplink and downlink configurations that are different from the current carrier, it can directly initiate a request to the network device (for example, an uplink and downlink configuration change request or a subchannel configuration request).
  • a request for example, an uplink and downlink configuration change request or a subchannel configuration request.
  • the terminal device may send first information to the network device, and the first information may be used to indicate the target uplink and downlink configuration desired by the terminal device.
  • the target uplink and downlink configuration may include the uplink proportion in a time window, the downlink proportion in a time window, and/or the number of time units in a time window.
  • the time unit may include one or more of the following: uplink symbols, downlink symbols, uplink time slots, downlink time slots, uplink subframes, and downlink subframes.
  • the target uplink and downlink configuration can include one or more of the following:
  • the uplink configuration percentage in a time unit the downlink configuration percentage in a time unit, the number of uplink symbols in a time unit, the number of downlink symbols in a time unit, the number of uplink time units in a subframe, the number of uplink time units in a subframe.
  • the uplink configuration percentage in a time unit may be 10%, 20%, 30%, etc.
  • the terminal device may send the first information to the network device through radio resource control (RRC) signaling.
  • RRC radio resource control
  • the candidate set of uplink configuration percentages in a time slot can be predefined as ⁇ 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% ⁇ , and the terminal device can Several bits are used in RRC signaling to indicate to the network device its desired target uplink configuration percentage.
  • the candidate set of the number of uplink symbols in a time slot can be predefined as ⁇ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 ⁇ , etc., and the terminal equipment
  • the desired number of symbols on the target can be indicated to the network device through several bits in the RRC signaling. For example, when the terminal device reports 3 uplink symbols, the sum of the corresponding downlink symbols and guard symbols in the time slot is 11.
  • the network device may refer to the target uplink and downlink configuration reported by the terminal device, and configure a sub-channel (such as a first sub-channel) for the terminal device.
  • the network device may send second information to the terminal device, and the second information may be used to indicate the uplink and downlink configuration of the subchannel. Subsequently, the terminal device can perform subsequent service transmission on the sub-channel.
  • the uplink and downlink configuration of the sub-channels actually configured for the terminal equipment may be close to but not completely equal to the target reported by the terminal.
  • the uplink and downlink configurations, that is to say, the uplink and downlink configurations indicated by the second information are not exactly equal to the target uplink and downlink configurations.
  • Method 2 Instruction method based on predefined configuration
  • the first method mentioned above is that the terminal device reports its desired uplink and downlink configuration, and based on this, the network device further determines an available uplink and downlink configuration for the terminal device.
  • the network device notifies the terminal device of the optional uplink and downlink configuration information (such as a set of candidate uplink and downlink configurations) in the cell, for example, through broadcast or through dedicated RRC signaling.
  • the terminal device selects an uplink and downlink configuration and informs the network device.
  • the network device may send third information to the terminal device, and the third information may be used to indicate a set of candidate uplink and downlink configurations of the cell where the terminal device is located. Subsequently, after receiving the third information, the terminal device may determine its desired target uplink and downlink configuration according to the set of candidate uplink and downlink configurations (for example, select the target uplink and downlink configuration from the set of candidate uplink and downlink configurations), and report the target uplink and downlink configuration. to network equipment.
  • the third information may be used to indicate a set of candidate uplink and downlink configurations of the cell where the terminal device is located.
  • the terminal device may determine its desired target uplink and downlink configuration according to the set of candidate uplink and downlink configurations (for example, select the target uplink and downlink configuration from the set of candidate uplink and downlink configurations), and report the target uplink and downlink configuration. to network equipment.
  • the network device can notify the terminal device through broadcast that there are the following three uplink and downlink configurations in the cell.
  • Configuration 1 is a low uplink ratio (such as 10%)
  • configuration 2 is a high uplink ratio (such as 90%)
  • configuration 3 is The mid-to-upward allocation ratio (such as 50%).
  • the end device After the end device receives this information, it can determine its desired configuration2 and instruct the network device. Subsequently, after receiving the indication information, the network device can configure the corresponding sub-channel for the terminal device.
  • the network device can notify the terminal device of the subchannel information corresponding to different uplink and downlink configurations through broadcast or dedicated RRC signaling.
  • Each sub-channel can be defined with a corresponding initial access time-frequency resource or a random access preamble.
  • the sub-channel information can represent the uplink and downlink configuration and the initial access time-frequency resource or random access preamble. code correspondence.
  • the network device may send fourth information to the terminal device.
  • the fourth information may be used to indicate a set of candidate uplink and downlink configurations.
  • Each uplink and downlink configuration in the set of candidate uplink and downlink configurations is associated with an initial access time-frequency resource or a random access preamble. code corresponding.
  • the set of candidate uplink and downlink configurations may represent the corresponding relationship between the uplink and downlink configurations and initial access time-frequency resources or random access preambles.
  • the terminal device When the terminal device needs to adjust its uplink and downlink configuration, it can initiate random access on the target time-frequency resource among the above-mentioned optional sub-channel time-frequency resources, or use the random access corresponding to the target uplink and downlink configuration (or target sub-channel). Enter the preamble to initiate random access.
  • the terminal device can initiate random access according to the initial access time-frequency resources or random access preamble corresponding to the target uplink and downlink configuration.
  • the target uplink and downlink configuration may be determined by the terminal device based on a set of candidate uplink and downlink configurations.
  • the network device After receiving the random access information from the terminal device, the network device can know its desired target uplink and downlink configuration information. After the random access is completed, the terminal device can work on the sub-channel that configures the target uplink and downlink configuration.
  • the network device can notify the following three uplink and downlink configurations in the cell through broadcasting.
  • Configuration 1 is a low uplink ratio (such as 10%)
  • configuration 2 is a high uplink ratio (such as 90%)
  • configuration 3 is a medium uplink ratio.
  • the matching ratio (such as 50%)
  • the corresponding initial access time-frequency resources are ⁇ resource 1, resource 2, resource 3 ⁇ or the corresponding random access preambles are ⁇ preamble1, preamble2, preamble3 ⁇ .
  • the terminal device can use the initial access time-frequency resource 2 to initiate random access, or use the random access preamble preamble 2 to initiate random access.
  • the network device can configure a sub-channel with a high uplink ratio for the terminal device. After the random access is completed, the terminal device can work on the sub-channel configured for the uplink and downlink of the configuration target.
  • the terminal device After the terminal device completes the transmission of the service, it can initiate a subchannel deconfiguration or deactivation request to the network device to restore the original channel, or initiate an uplink and downlink configuration change request (which carries new target uplink and downlink configuration information).
  • the terminal device may send fifth information to the network device, and the fifth information may be used to request to deconfigure or deactivate the uplink and downlink configuration of the first subchannel, or the fifth information may be used to request to change the first subchannel. uplink and downlink configuration.
  • the network device can deconfigure or deactivate the subchannel, allowing the terminal device to return to the original channel and continue working.
  • the network device can refer to the new target uplink and downlink configuration information to make configuration changes. For example, change the uplink and downlink configuration of sub-channel 1 to the new uplink and downlink configuration. Or change subchannel 1 of the terminal to subchannel 2.
  • terminal equipment can also change uplink and downlink configurations through various methods, as follows:
  • Uplink and downlink configuration changes can be made using the configuration method based on terminal device requests in Method 1 above.
  • the terminal device may initiate an uplink and downlink configuration change request to the network device (which may carry new target uplink and downlink configuration information) or initiate a subchannel deconfiguration or deactivation request to restore the original channel.
  • the network device which may carry new target uplink and downlink configuration information
  • the terminal device may initiate a subchannel deconfiguration or deactivation request to restore the original channel.
  • the network device after the network device receives a new uplink and downlink configuration change request from the terminal device, it can refer to the new target uplink and downlink configuration information to make configuration changes. For example, the uplink and downlink configuration of sub-channel 1 can be changed to the new uplink and downlink configuration. Configuration, or change the terminal's subchannel 1 to subchannel 2.
  • the network device can deconfigure or deactivate subchannel 1, and the terminal device returns to the original channel to continue working.
  • activation and deactivation of sub-channels can also be further introduced.
  • the network device may send sixth information to the terminal device, and the sixth information may be used to activate the first sub-channel.
  • Activation and deactivation operations can be implemented through medium access control (MAC) signaling.
  • MAC medium access control
  • MAC signaling is faster to implement.
  • the sixth information may be carried in MAC signaling.
  • the terminal device wants to switch from channel 0 to sub-channel 1 (or when the network device wants to switch the terminal device from channel 0 to sub-channel 1), in the case that the network device has configured sub-channel 1, you can use the MAC signaling to activate the subchannel.
  • the network device configures sub-channel 1 but does not activate sub-channel 1, the terminal device still works on channel 0; only when the network device configures sub-channel 1 and activates sub-channel 1, the terminal device switches from channel 0 to Subchannel 1.
  • the advantage of this processing is that the network equipment can complete the information exchange of configuring sub-channels through RRC signaling in advance, that is, configuring first but not switching. When switching is required, the switching can be completed quickly through MAC signaling to reduce the time required for channel switching. extension.
  • the terminal device wants to enter channel 0 from sub-channel 1 (or when the network device wants to switch the terminal device from sub-channel 1 to channel 0), when the network device has configured and activated sub-channel 1, you can The sub-channel is directly deactivated through MAC signaling. At this time, the terminal device has completed the operation of switching from sub-channel 1 to channel 0, but the terminal device and the network device can still retain the configuration information of sub-channel 1.
  • the network device can quickly complete the switch directly through MAC signaling without having to exchange configuration information again through slower RRC signaling, thus saving time. with signaling.
  • the applicable scope of the sub-channel can be further limited.
  • all terminal devices in the cell where the terminal device is located can use the first sub-channel. That is to say, the divided sub-channels are applicable to all terminal devices in the cell.
  • the network equipment configures sub-channel 1 in the cell.
  • the time slots for which sub-channel 1 is applicable when sub-channel 1 is only applicable to some time slots as shown in Figures 10 and 11, Figure The applicable time slots in Figures 12 and 13 are only those time slots for which sub-channels are defined
  • channel 0 of the cell is divided into two parts, sub-channel 1 and sub-channel 2.
  • the terminal equipment (UE1 or UE2) can work on sub-channel 1 or sub-channel 2 (when single carrier operates), or the terminal equipment (UE1 or UE2) can work on sub-channel 1 + sub-channel 2 (when multi-carrier operates).
  • some terminal devices in the cell where the terminal device is located can use the first sub-channel.
  • the divided sub-channels are suitable for some terminal devices in the cell.
  • the network equipment can configure sub-channel 1 for some areas or some terminals in the cell.
  • UE1 can work on sub-channel 1 or sub-channel 2 (when operating on a single carrier) , or sub-channel 1 + sub-channel 2 (when working with multi-carriers).
  • UE2 can work on channel 0.
  • it can also be stipulated that not all UEs in the cell can work on sub-channel 1 that overlaps the spectrum of UE1.
  • Method 1 The terminal equipment transmits and receives in the sub-channel
  • the first sub-channel may be used for the terminal device to send signals to the network device and for the terminal device to receive signals sent by the network device.
  • the network equipment configures sub-channel 1 for the terminal device in each time slot of channel 0. Then in the time slot applicable to sub-channel 1, the terminal device can both transmit and receive on the sub-channel. 1.
  • Method 2 The terminal device transmits on the sub-channel, and the terminal device receives on the original channel
  • the first sub-channel may be used by the terminal device to send signals to the network device, and the first channel may be used by the terminal device to receive signals sent by the network device.
  • sub-channel 1 is only configured in part of the time slots and only the uplink sub-channel is configured. Then during the time when the sub-channel is configured, the terminal device's transmission can work on sub-channel 1, while the terminal device's Reception can operate on channel 0.
  • the transmission of the terminal device operates on sub-channel 1.
  • the terminal equipment can operate on subchannel 1 or channel 0.
  • Method 3 The reception of the terminal equipment is located in the sub-channel, and the transmission of the terminal equipment is located in the original channel
  • the first channel may be used by the terminal device to send signals to the network device
  • the first sub-channel may be used by the terminal device to receive signals sent by the network device
  • sub-channel 1 is only configured in part of the time slots and only the downlink sub-channel is configured. Then during the time when the sub-channel is configured, the transmission of the terminal device can work on channel 0, while the reception of the terminal device Can work on sub-channel 1.
  • the reception of the terminal device operates on sub-channel 1.
  • the terminal equipment can work on subchannel 1 or channel 0.
  • Method 4 The terminal device transmits in one sub-channel (such as the first sub-channel), and the terminal device receives in another sub-channel (such as the second sub-channel)
  • the network device can also configure the transmission and reception of the terminal device to different subchannels.
  • the first subchannel may be used to configure the uplink transmission of the terminal device
  • the second subchannel may be used to configure the downlink transmission of the terminal device
  • the uplink transmission (1st, 2nd, 4th, 5th and 6th time slots) of the terminal device can be configured on sub-channel 1
  • the downlink reception (3rd time slot) of the terminal device can be configured on sub-channel 2 .
  • the solution in the embodiment of this application can reduce the transmission delay of the network, improve the uplink or downlink throughput, and meet diverse business needs through the definition and configuration of the above sub-channels.
  • Figure 18 is a schematic structural diagram of a communication device provided by an embodiment of the present application. As shown in Figure 18, the device 1800 includes a communication unit 1810, specifically as follows:
  • the communication unit 1810 is configured to communicate with the network device through the first sub-channel.
  • the first sub-channel occupies part of the frequency domain resources of the first channel.
  • the uplink and downlink configurations of the first sub-channel in the first time window are consistent with
  • the first channel has different uplink and downlink configurations in the first time window, and the first time window includes one or more time units.
  • the first channel includes the first sub-channel in each time unit of the first time window.
  • the first sub-channel is not configured or activated in a second time window
  • the second time window includes one or more time units
  • the second time window is within the same period as the first time window. No or partial overlap in time domain.
  • the uplink and downlink configuration of the first sub-channel in the first time window is the same as the uplink and downlink configuration in the third time window, or the first sub-channel is configured in the first time window.
  • the uplink and downlink configurations in are different from the uplink and downlink configurations in the third time window.
  • the communication unit 1810 before communicating with the network device through the first sub-channel, is also configured to: send first information to the network device, where the first information is used to indicate the target desired by the device. Uplink and downlink configuration; receiving second information sent by the network device, where the second information is used to indicate the uplink and downlink configuration of the first subchannel.
  • the target uplink and downlink configuration includes an uplink proportion in a time window, a downlink proportion in a time window, and/or a number of time units in a time window, and the time unit includes one or more of the following: Items: uplink symbol, downlink symbol, uplink timeslot, downlink timeslot, uplink subframe, downlink subframe.
  • the communication unit 1810 is further configured to: receive third information sent by the network device, where the third information is used to indicate a candidate uplink and downlink configuration set;
  • the apparatus 1800 further includes a determining unit 1820, configured to determine the target uplink and downlink configuration according to the set of candidate uplink and downlink configurations.
  • the communication unit 1810 is further configured to: receive fourth information sent by the network device, where the fourth information is used to indicate the candidate uplink and downlink configuration.
  • a set, each uplink and downlink configuration in the candidate uplink and downlink configuration set corresponds to an initial access time-frequency resource or a random access preamble;
  • the device 1800 also includes an access unit 1830, configured to initiate random access according to the initial access time-frequency resource or random access preamble corresponding to the target uplink and downlink configuration, which the device determines according to the target uplink and downlink configuration.
  • the above candidate uplink and downlink configuration sets are determined.
  • the communication unit 1810 is further configured to: send fifth information to the network device, where the fifth information is used to request to change the first sub-channel.
  • the fifth information is used to request to change the first sub-channel.
  • Uplink and downlink configuration of the channel, or the fifth information is used to request deconfiguration or deactivation of the uplink and downlink configuration of the first sub-channel.
  • the communication unit 1810 before communicating with the network device through the first sub-channel, is further configured to: receive sixth information sent by the network device, where the sixth information is used to activate the first sub-channel. channel.
  • the sixth information is carried in media access control layer MAC signaling.
  • the first sub-channel is applicable to all terminal equipment in the cell where the device is located, or the first sub-channel is applicable to some terminal equipment in the cell where the device is located.
  • the first subchannel is used for the device to send signals to the network device and for the device to receive signals sent by the network device.
  • the first sub-channel is used by the device to send signals to network equipment, and the first channel is used by the device to receive signals sent by the network equipment; or, the first channel is used by all
  • the device sends a signal to a network device, and the first subchannel is used for the device to receive a signal sent by the network device.
  • the first channel also includes a second sub-channel, and the second sub-channel occupies part of the frequency domain resources of the first channel; the first sub-channel is used to configure uplink transmission of the device, The second sub-channel is used to configure downlink transmission of the device.
  • FIG 19 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device 1900 in Figure 19 includes a communication unit 1910, specifically as follows:
  • Communication unit 1910 configured to: communicate with the terminal device through the first sub-channel, the first sub-channel occupies part of the frequency domain resources of the first channel, the uplink and downlink configuration of the first sub-channel in the first time window Different from the uplink and downlink configuration of the first channel in the first time window, the first time window includes one or more time units.
  • the first channel includes the first sub-channel in each time unit of the first time window.
  • the first sub-channel is not configured or activated in a second time window
  • the second time window includes one or more time units
  • the second time window is within the same period as the first time window. No or partial overlap in time domain.
  • the uplink and downlink configuration of the first sub-channel in the first time window is the same as the uplink and downlink configuration in the third time window, or the first sub-channel is configured in the first time window.
  • the uplink and downlink configurations in are different from the uplink and downlink configurations in the third time window.
  • the communication unit 1910 is further configured to: receive first information sent by the terminal device, where the first information is used to indicate that the terminal device desires target uplink and downlink configuration; sending second information to the terminal device, where the second information is used to indicate the uplink and downlink configuration of the first sub-channel.
  • the target uplink and downlink configuration includes an uplink proportion in a time window, a downlink proportion in a time window, and/or a number of time units in a time window, and the time unit includes one or more of the following: Items: uplink symbol, downlink symbol, uplink timeslot, downlink timeslot, uplink subframe, downlink subframe.
  • the communication unit 1910 is further configured to: send third information to the terminal device, where the third information is used to indicate a candidate uplink and downlink configuration set.
  • the communication unit 1910 is further configured to: send fourth information to the terminal device, where the fourth information is used to indicate the candidate uplink and downlink configuration set,
  • Each uplink and downlink configuration in the candidate uplink and downlink configuration set corresponds to an initial access time-frequency resource or a random access preamble;
  • the device 1900 also includes a determining unit 1920, configured to: initiate a random access according to the terminal device The initial access time-frequency resource or random access preamble used at the time of entry determines the target uplink and downlink configuration, and the target uplink and downlink configuration is determined by the terminal device based on the candidate uplink and downlink configuration set.
  • the communication unit 1910 is further configured to: receive fifth information sent by the terminal device, where the fifth information is used to request to change the first Uplink and downlink configuration of the subchannel, or the fifth information is used to request deconfiguration or deactivation of the uplink and downlink configuration of the first subchannel.
  • the communication unit 1910 is further configured to: send sixth information to the terminal device, where the sixth information is used to activate the first sub-channel. .
  • the sixth information is carried in media access control layer MAC signaling.
  • the first sub-channel is applicable to all terminal devices in the cell where the terminal device is located, or the first sub-channel is applicable to some terminal devices in the cell where the terminal device is located.
  • the first sub-channel is used for the device to send signals to the terminal device and for the device to receive signals sent by the terminal device.
  • the first sub-channel is used for the device to receive a signal sent by the terminal device, and the first channel is used for the device to send a signal to the terminal device; or, the first channel is used for After the device receives a signal sent by the terminal device, the first sub-channel is used by the device to send a signal to the terminal device.
  • the first channel also includes a second sub-channel, which occupies part of the frequency domain resources of the first channel; the first sub-channel is used to configure uplink transmission of the terminal device. , the second sub-channel is used to configure downlink transmission of the terminal device.
  • Figure 20 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • the dashed line in Figure 20 indicates that the unit or module is optional.
  • the device 2000 can be used to implement the method described in the above method embodiment.
  • Device 2000 may be a chip or a communication device.
  • Apparatus 2000 may include one or more processors 2010.
  • the processor 2010 can support the device 2000 to implement the method described in the foregoing method embodiments.
  • the processor 2010 may be a general-purpose processor or a special-purpose processor.
  • the processor may be a central processing unit (CPU).
  • the processor can also be another general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), or an off-the-shelf programmable gate array (FPGA) Or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • Apparatus 2000 may also include one or more memories 2020.
  • the memory 2020 stores a program, which can be executed by the processor 2010, so that the processor 2010 executes the method described in the foregoing method embodiment.
  • the memory 2020 may be independent of the processor 2010 or integrated in the processor 2010.
  • Apparatus 2000 may also include a transceiver 2030.
  • Processor 2010 may communicate with other devices or chips through transceiver 2030.
  • the processor 2010 can transmit and receive data with other devices or chips through the transceiver 2030.
  • An embodiment of the present application also provides a computer-readable storage medium for storing a program.
  • the computer-readable storage medium can be applied to the communication device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the communication device in various embodiments of the present application.
  • An embodiment of the present application also provides a computer program product.
  • the computer program product includes a program.
  • the computer program product can be applied to the communication device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the communication device in various embodiments of the present application.
  • An embodiment of the present application also provides a computer program.
  • the computer program can be applied to the communication device provided by the embodiments of the present application, and the computer program causes the computer to execute the methods performed by the communication device in various embodiments of the present application.
  • B corresponding to A means that B is associated with A, and B can be determined based on A.
  • determining B based on A does not mean determining B only based on A.
  • B can also be determined based on A and/or other information.
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVD)) or semiconductor media (e.g., solid state disks (SSD) )wait.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., digital video discs (DVD)
  • semiconductor media e.g., solid state disks (SSD)

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

Abstract

L'invention concerne un procédé de communication et un appareil de communication. Le procédé comprend les étapes suivantes : un dispositif terminal communique avec un dispositif de réseau au moyen d'un premier sous-canal, le premier sous-canal occupant certaines ressources de domaine fréquentiel d'un premier canal, des configurations de liaison montante et de liaison descendante du premier sous-canal dans une première fenêtre temporelle étant différentes des configurations de liaison montante et de liaison descendante du premier canal dans la première fenêtre temporelle, et la première fenêtre temporelle comprenant une ou plusieurs unités temporelles. Au moyen du procédé dans les modes de réalisation de la présente demande, des exigences du dispositif terminal peuvent être satisfaites.
PCT/CN2022/107490 2022-07-22 2022-07-22 Procédé de communication et appareil de communication WO2024016347A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/CN2022/107490 WO2024016347A1 (fr) 2022-07-22 2022-07-22 Procédé de communication et appareil de communication

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104104470A (zh) * 2013-04-08 2014-10-15 电信科学技术研究院 一种上行传输方法及设备
WO2017024467A1 (fr) * 2015-08-10 2017-02-16 华为技术有限公司 Procédé de communication sans fil, dispositif de réseau et dispositif de terminal
CN107493604A (zh) * 2016-06-13 2017-12-19 华为技术有限公司 帧结构配置的方法与装置
CN110351032A (zh) * 2018-04-02 2019-10-18 华为技术有限公司 资源配置方法及装置
CN110519031A (zh) * 2017-11-17 2019-11-29 华为技术有限公司 信息传输方法及设备
WO2020029199A1 (fr) * 2018-08-09 2020-02-13 Oppo广东移动通信有限公司 Procédé de transmission d'informations, dispositif terminal et dispositif réseau
CN112020145A (zh) * 2019-05-31 2020-12-01 华为技术有限公司 一种通信方法及装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104104470A (zh) * 2013-04-08 2014-10-15 电信科学技术研究院 一种上行传输方法及设备
WO2017024467A1 (fr) * 2015-08-10 2017-02-16 华为技术有限公司 Procédé de communication sans fil, dispositif de réseau et dispositif de terminal
CN107493604A (zh) * 2016-06-13 2017-12-19 华为技术有限公司 帧结构配置的方法与装置
CN110519031A (zh) * 2017-11-17 2019-11-29 华为技术有限公司 信息传输方法及设备
CN110351032A (zh) * 2018-04-02 2019-10-18 华为技术有限公司 资源配置方法及装置
WO2020029199A1 (fr) * 2018-08-09 2020-02-13 Oppo广东移动通信有限公司 Procédé de transmission d'informations, dispositif terminal et dispositif réseau
CN112020145A (zh) * 2019-05-31 2020-12-01 华为技术有限公司 一种通信方法及装置

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