WO2023125663A1 - 通信方法及装置 - Google Patents

通信方法及装置 Download PDF

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Publication number
WO2023125663A1
WO2023125663A1 PCT/CN2022/142818 CN2022142818W WO2023125663A1 WO 2023125663 A1 WO2023125663 A1 WO 2023125663A1 CN 2022142818 W CN2022142818 W CN 2022142818W WO 2023125663 A1 WO2023125663 A1 WO 2023125663A1
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WIPO (PCT)
Prior art keywords
resource
terminal device
request
resources
data transmission
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PCT/CN2022/142818
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English (en)
French (fr)
Inventor
黄曲芳
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展讯通信(上海)有限公司
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Publication of WO2023125663A1 publication Critical patent/WO2023125663A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/563Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method and device.
  • the terminal device can support extended reality (extended reality, XR) services.
  • extended reality extended reality
  • a terminal device supporting an XR service may be referred to as an XR terminal device.
  • the XR terminal device may be a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, and the like.
  • a discontinuous reception (Discontinuous Reception, DRX) mechanism is introduced to save downlink transmission energy consumption, thereby effectively Helps extend battery life.
  • DRX discontinuous Reception
  • uplink transmission of XR services generation of uplink data is generally related to user behavior, and user behavior is random. Therefore, the research on uplink transmission has important practical significance for further saving the power consumption of XR terminal equipment and enhancing the battery life of XR terminal equipment.
  • the embodiments of the present application provide a communication method and device, which can request uplink resources using resources within the data transmission time window, thereby helping to reduce the extra power consumption caused by terminal equipment requesting uplink resources, thereby helping to save terminal equipment power consumption.
  • the embodiment of the present application provides a communication method, including:
  • the terminal device determines a first resource, where the first resource is located within a data transmission time window, and the data transmission time window is used for receiving downlink information;
  • the terminal device uses the first resource to request the second resource from the network device, and the second resource is used for sending uplink information.
  • the first resource located in the data transmission time window can be used to request uplink resources, thereby helping to reduce the additional power consumption caused by the terminal device requesting uplink resources , thereby helping to save the power consumption of the terminal equipment.
  • the above method further includes:
  • the terminal device determines that the amount of resources required for sending uplink information exceeds the actually available resource amount for sending uplink information.
  • the above method further includes:
  • the terminal device determines that there is uplink information that needs to be transmitted.
  • the above method further includes:
  • the terminal device determines that there are no available resources for uplink information transmission.
  • the first resource is located within the data transmission time window, and the data transmission time window is used for receiving downlink information, including:
  • the first resource is located in the Nth data transmission time window, the Nth data transmission time window is used for the reception of the Kth transmission block TB, and the first resource is used for the transmission of the hybrid automatic repeat request HARQ information of the Kth TB , N, K are positive integers.
  • the terminal device requests the second resource by using the resources used to send the HARQ information of the K-th TB within the data transmission time window, which helps the terminal device quickly request the second resource, and can help save the terminal The power consumption of the device.
  • the above method further includes:
  • the terminal device receives first indication information from the network device, where the first indication information is used to indicate K.
  • the first resource includes a first subresource and a second subresource, and the first subresource and the second subresource are respectively used for sending the HARQ information of the Kth TB.
  • the terminal device uses the first resource to request the second resource from the network device, including:
  • the terminal device uses the first subresource to send the HARQ information of the Kth TB.
  • the terminal device sends the HARQ information of the Kth TB through the first sub-resource, which can implicitly request the second resource from the network device, which helps to save the signaling overhead of the terminal device.
  • the above method further includes:
  • the terminal device uses the second sub-resource to send the HARQ information of the Kth TB.
  • the terminal device uses the first resource to request the second resource from the network device, including:
  • the terminal device sends a resource request message to the network device on the first resource, where the resource request message is used to request the second resource.
  • the above method further includes:
  • the terminal device receives uplink resource request configuration information from the network device, where the uplink resource request configuration information is used to indicate that the first resource is used to request the second resource.
  • the above method further includes:
  • the terminal device receives resource configuration information sent from the network device, where the resource configuration information is used to indicate the second resource.
  • the above method further includes:
  • the terminal device uses M first resources to request the second resource, but has not received the resource configuration information sent by the network device, it sends a random access request to the network device.
  • the random access request is used to request the second resource, and M is positive. integer.
  • the terminal device after the terminal device fails to request the second resource using the M first resources, it initiates random access, which helps the terminal device obtain the second resource as soon as possible and facilitates the sending of uplink information as soon as possible.
  • the first resource is a scheduling request SR resource and/or a physical random access channel PRACH resource.
  • the terminal device determines the first resource, including:
  • the terminal device determines that the SR resource is the first resource; or,
  • the terminal device determines that SR resources and PRACH resources are the first resources; or,
  • the terminal device determines the first resource from the SR resource and the PRACH resource according to the configuration of the network device.
  • the data transmission time window is located within the first time period, the duration of the first time period is longer than the duration of the data transmission time window, and the starting moment of the first time period is when the terminal device needs to request the first time period. Two resource moments.
  • the terminal device determines the first resource, including:
  • the terminal device determines the SR closest to the time when the second resource needs to be requested
  • the resources and/or the PRACH resources are the first resources.
  • the above method further includes:
  • the terminal device After the end of the first timer, the terminal device has not received the resource configuration information for indicating the second resource sent by the network device, and then uses the SR resources and/or PRACH resources in any period of time to request the network device for the second resource configuration information. Two resources, wherein the first timer is started when the terminal device determines that there is uplink information to be transmitted.
  • the embodiment of the present application also provides a communication method, including:
  • the network device uses the first resource to detect that the terminal device requests the second resource.
  • the first resource is located within a data transmission time window, the data transmission time window is used for sending downlink information, and the second resource is used for sending uplink information.
  • the above method further includes:
  • the network device sends uplink resource request configuration information to the terminal device, wherein the uplink resource request configuration information is used to indicate that the first resource is used to request the second resource.
  • the first resource is located within a data transmission time window, and the data transmission time window is used for sending downlink information, including:
  • the first resource is located in the Nth data transmission time window, the Nth data transmission time window is used for the transmission of the Kth transmission block TB, and the first resource is used for the transmission of the hybrid automatic repeat request HARQ information of the Kth TB , N, K are positive integers.
  • the above method further includes:
  • the network device sends first indication information to the terminal device, where the first indication information is used to indicate K.
  • the first resource includes a first subresource and a second subresource, and the first subresource and the second subresource are respectively used for sending the HARQ information of the Kth TB.
  • the above method further includes:
  • the network device After receiving the HARQ information of the Kth TB on the first sub-resource, the network device determines that it is detected that the terminal device requests the second resource.
  • the above method further includes:
  • the network device receives the HARQ information of the Kth TB on the second sub-resource, and then determines that no terminal device is detected to request the second resource.
  • the network device uses the first resource to detect that the terminal device requests the second resource, including:
  • the network device receives a resource request message from the terminal device on the first resource, where the resource request message is used to request the second resource.
  • the above method further includes:
  • the network device sends resource configuration information to the terminal device, where the resource configuration information is used to indicate the second resource.
  • the first resource is an SR resource and/or a PRACH resource
  • the above method further includes:
  • the network device sends priority indication information to the terminal device, where the priority indication information indicates the priority of using the SR resource and the PRACH resource to request the second resource.
  • the data transmission time window is located within the first time period, the duration of the first time period is longer than the duration of the data transmission time window, and the starting moment of the first time period is when the terminal device needs to request the first time period. Two resource moments.
  • the above method further includes:
  • the network device sends window adjustment instruction information to the terminal device, and the window adjustment instruction information indicates to align the start time of the discontinuous reception DRX window with the arrival time of the downlink information.
  • an embodiment of the present application provides a communication device, including: a processor and a memory, the memory is used to store a computer program; the processor is used to run the computer program, and execute the communication method as described in the first aspect.
  • the embodiment of the present application further provides a communication device, including: a processor and a memory, the memory is used to store a computer program; the processor is used to run the computer program, and execute the communication method as described in the second aspect.
  • the embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored in the computer-readable storage medium, and when it is run on a computer, the computer can realize the computer programs described in the first aspect to the second aspect. the communication method described above.
  • the embodiment of the present application provides a computer program product, the computer program product includes a computer program, when the above computer program is executed by a computer, the computer realizes the communication described in the first aspect or the second aspect method.
  • the program in the sixth aspect may be stored in whole or in part on a storage medium packaged with the processor, or stored in part or in whole in a memory not packaged with the processor.
  • the embodiment of the present application provides a communication device, including: one or more functional modules, where the one or more functional modules are configured to execute any one of the communication methods provided in the first aspect.
  • the embodiment of the present application provides a communication device, including: one or more functional modules, where the one or more functional modules are configured to execute any one of the communication methods provided in the second aspect.
  • a ninth aspect provides a communication system, including: a communication device for performing any one of the methods provided in the first aspect and a communication device for performing any one of the methods provided in the second aspect.
  • the communication device in the third aspect and the seventh aspect may be a chip or a terminal device
  • the communication device in the fourth aspect and the eighth aspect may be a chip or a network device.
  • Figure 1a is a schematic diagram of an embodiment of the DRX cycle provided by the present application.
  • FIG. 1b is a schematic diagram of another embodiment of the DRX cycle provided by the present application.
  • FIG. 2 is a schematic diagram of a communication system network architecture provided by an embodiment of the present application.
  • FIG. 3 is a schematic flow diagram of an embodiment of a communication method provided by the present application.
  • FIG. 4 is a schematic flowchart of another embodiment of the communication method provided by the present application.
  • FIG. 5 is a schematic diagram of an embodiment of an uplink resource request method provided by the present application.
  • FIG. 6 is a schematic flowchart of another embodiment of the communication method provided by the present application.
  • FIG. 7 is a schematic diagram of another embodiment of the uplink resource request method provided by the present application.
  • FIG. 8 is a schematic flowchart of a method for determining a first resource provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an embodiment of a communication device provided by the present application.
  • FIG. 10 is a schematic structural diagram of another embodiment of a communication device provided by the present application.
  • Fig. 11 is a schematic structural diagram of another embodiment of the communication device provided by the present application.
  • At least one of the following or similar expressions thereof refers to any combination of these items, and may include any combination of a single item or a plurality of items.
  • at least one item (one) of A, B or C may represent: A, B, C, A and B, A and C, B and C, or A, B and C.
  • each of A, B, and C can be an element itself, or a set containing one or more elements.
  • transmit may include send and/or receive and may be a noun or a verb.
  • the equals involved in the embodiments of the present application can be used in conjunction with greater than, applicable to the technical solution adopted when greater than, and can also be used in conjunction with less than, applicable to the technical solution adopted when less than. It should be noted that when equal to is used in conjunction with greater than, it cannot be used in conjunction with less than; when equal to is used in conjunction with less than, it cannot be used in conjunction with greater than.
  • the terminal device is a device with a wireless transceiver function, which can be referred to as a terminal (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), access terminal equipment, vehicle terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. .
  • Terminal equipment can be fixed or mobile.
  • the terminal device may support at least one wireless communication technology, such as long term evolution (long term evolution, LTE), new air interface (new radio, NR), and so on.
  • the terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a desktop computer, a notebook computer, an all-in-one computer, a vehicle terminal, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, transportation safety Wireless terminals in (transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless Local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, wearable devices, future mobile communications
  • the terminal device may also be a device having a
  • the network device in the embodiment of the present application is a device that provides a wireless communication function for a terminal device, and may also be referred to as an access network device, a radio access network (radio access network, RAN) device, or the like. Wherein, the network device may support at least one wireless communication technology, such as LTE, NR and so on.
  • the network equipment includes but is not limited to: a next-generation base station (generation nodeB, gNB), an evolved node B (evolved node B, eNB) in a fifth-generation mobile communication system (5th-generation, 5G), a wireless network control radio network controller (RNC), node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (baseband unit, BBU), transmitting and receiving point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center, etc.
  • generation nodeB generation nodeB, gNB
  • an evolved node B evolved node B
  • eNB evolved node B
  • 5th-generation 5G
  • 5G fifth-generation mobile communication system
  • RNC wireless network control radio network controller
  • node B node B
  • the network device may also be a wireless controller, a centralized unit (centralized unit, CU), and/or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device may It is a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, a network device in future mobile communications or a network device in a future evolved PLMN, etc.
  • the network device may also be an apparatus having a wireless communication function for the terminal device, such as a chip system.
  • the system-on-a-chip may include a chip, and may also include other discrete devices.
  • the uplink information in this embodiment of the present application may also be referred to as an uplink signal.
  • the uplink information may include uplink control information (uplink control information, UCI) and/or uplink data.
  • Uplink control information is used to carry related information fed back by terminal equipment, such as channel state information (CSI), scheduling request (SR), preamble, acknowledgment (acknowledgment, ACK)/denial response (negative acknowledgment, NACK) and so on.
  • the uplink control information may be carried on a physical uplink control channel (physical uplink control channel, PUCCH) or a physical uplink shared channel (physical uplink shared channel, PUSCH).
  • the uplink data may include service-related data, specifically, the uplink data may be carried on the PUSCH. For example, taking the XR service as an example, the uplink data may be data related to user behavior.
  • the downlink information in this embodiment of the present application may also be referred to as a downlink signal.
  • the downlink information may include downlink control information (downlink control information, DCI) and/or downlink data (downlink data).
  • the downlink control information is related information used for downlink data scheduling, for example, information such as resource allocation of data channels, modulation and coding schemes, and the like.
  • downlink control information may be carried on a physical downlink control channel (physical downlink control channel, PDCCH), and downlink data may be carried on a physical downlink shared channel (physical downlink shared channel, PDSCH).
  • Downlink data may include data related to services. For example, taking an extended reality (Extended Reality, XR) service as an example, the downlink data may be a video frame of the XR service.
  • extended reality Extended Reality
  • the data transmission time window is used for receiving downlink information; for a network device, it is used for sending downlink information.
  • the data transmission time window occurs periodically.
  • the data transmission time window may be understood as an active period in a discontinuous reception (Discontinuous Reception, DRX) cycle. In this case, the period of the data transmission time window is the same as that of the active period.
  • DRX discontinuous Reception
  • the DRX cycle can be divided into an activation period and a dormancy period according to the behavior of the terminal equipment.
  • the activation period in the DRX cycle can be referred to as the DRX activation period for short, and the sleep period in the DRX cycle can be referred to as the DRX sleep period for short.
  • the network device can send downlink information to the terminal device, and the terminal device can receive the downlink information sent by the network device; during the DRX sleep period, the network device does not send downlink information to the terminal device, and the terminal device can be in a sleep state, that is, it does not receive network information.
  • the downlink information of the device can save the power consumption of the terminal device.
  • the terminal device may periodically receive downlink information sent by the network device during the DRX activation period.
  • the downlink video data of the XR service is periodically generated, and usually 60 frames of downlink video data are generated in one second, that is, one frame of downlink video data is generated every 16.67 ms.
  • the network device may send one frame of downlink video data in one DRX cycle, that is, the DRX cycle may be a cycle of one frame of downlink video data, for example, 16.67ms.
  • Figures 1a and 1b are schematic diagrams of DRX cycles in XR services, wherein, in the DRX cycle shown in Figure 1a, the DRX activation period is before the DRX sleep period; in the DRX cycle shown in Figure 1b, the DRX activation period is before After the DRX sleep period.
  • ACK/NACK resources are used for sending HARQ information.
  • ACK/NACK resources are used for receiving HARQ information.
  • the HARQ information is used to indicate the reception status of the TB of the video data. For example, if the TB terminal equipment receives the video data correctly, the HARQ information is ACK. For another example, if the TB terminal equipment receives the video data incorrectly, the HARQ information is NACK.
  • SR resources refer to uplink resources used for sending SRs.
  • the SR resource may be a PUSCH resource.
  • SR refers to a scheduling request sent by the terminal device to the network device, and the scheduling request may be used to request resources for sending uplink information from the network device.
  • SR resources are usually periodic, and terminal devices can use any one or more SR resources to send SRs to network devices. For example, after a terminal device detects that there are SR resources, it can use the SR resources to The device sends an SR, for example, the requirement may be whether there is uplink information to be sent.
  • the PRACH resource refers to a resource for initiating random access.
  • the PRACH resource may include a preamble and a random access opportunity (rach occasion, RO).
  • RO may be a resource including frequency domain and time domain.
  • the video service is an XR service with periodic downlink transmission. That is to say, for video services, downlink video data is usually transmitted periodically.
  • the terminal device usually receives downlink video data sent by the network device under the DRX mechanism. For example, the terminal device may receive downlink video data during the active period of the DRX cycle, and stop receiving downlink video data during the sleep period of the DRX cycle.
  • the terminal device usually also sends uplink data to the network device, where the uplink data may be data related to user behavior.
  • user behavior is usually random, and for terminal devices, it is impossible to periodically transmit uplink data related to user behavior, so that terminal devices cannot use power saving modes such as DRX cycles to perform uplink data sent.
  • the terminal device in order to send the uplink data related to the user behavior, the terminal device needs to request the resource for sending the uplink data related to the user behavior from the network device in advance. Therefore, the terminal device requests the resource from the network device, which will cause additional power consumption of the terminal device.
  • the terminal device is usually a wearable device, for example, an XR device. XR devices are sensitive to power consumption and consume a lot of power in video services. Therefore, the extra power consumption will further burden the XR device, resulting in poor battery life of the XR device.
  • the embodiment of the present application proposes a communication method, so that the terminal device can use resources within the data transmission time window for receiving downlink data to request uplink resources from the network device, thereby helping to reduce the number of requests for uplink resources by the terminal device.
  • the extra power consumption caused by this will help to save the power consumption of the terminal equipment.
  • the communication system includes terminal equipment, network equipment and servers.
  • the server may be a local server or a cloud server.
  • the server may also be called an XR server.
  • the XR service is taken as an example of a video service.
  • the terminal device may respond to the user's behavior (such as a certain action of the user), and send the relevant information of the user's behavior to the server through the network device.
  • the server can send relevant video data to the network device according to the relevant information of the user's behavior, and the network device sends the video data to the terminal device.
  • the terminal device receives the video data from the server, and in response to the user's behavior, displays a corresponding video picture according to the received video data.
  • FIG. 2 is only an illustration of the communication system in the embodiment of the present application, which is not limited by the embodiment of the present application.
  • the communication system in this embodiment of the present application may include multiple network devices, and may also include multiple terminal devices.
  • the following uses the communication system shown in FIG. 2 as an example to introduce the communication method in the embodiment of the present application.
  • FIG. 3 it is a schematic flow diagram of the communication method provided in the embodiment of the present application, which specifically includes the following steps:
  • a terminal device uses a first resource to request a second resource from a network device.
  • the first resource is located within the data transmission time window.
  • the data transmission time window is used for receiving downlink information.
  • the second resource is used for sending uplink information, that is, the second resource is an uplink resource.
  • the terminal device may trigger the terminal device to use the first resource to request the second resource from the network device based on the following manner:
  • the terminal device determines that there is uplink information to be transmitted, and uses the first resource to request the second resource from the network device.
  • take the uplink information as XR service data as an example.
  • the terminal device detects the user's behavior and generates XR service data related to the user's behavior.
  • the terminal device can use the first resource to request the second resource from the network device in response to the user behavior; it can also use the first resource after generating XR service data related to the user behavior in response to the user behavior
  • a second resource is requested from the network device.
  • the terminal device may detect user behavior through a camera, or may detect user behavior through one or more sensors (such as acceleration sensors, gyroscopes, etc.). The embodiment of the present application does not specifically limit the way the terminal device detects user behavior.
  • the terminal device determines that the amount of resources required for sending the uplink information exceeds the actually available amount of resources for sending the uplink information, and uses the first resource to request the second resource from the network device. That is to say, if the actual required amount of uplink resources is greater than the actual available amount of uplink resources, the terminal device uses the first resource to request the second resource from the network device. For example, if the terminal device needs uplink information to be sent, it first judges whether the resource amount of the actually available uplink resource satisfies the resource amount required for sending the uplink information, and if not, uses the first resource A second resource is requested from the network device.
  • the resource amount of the second resource requested by the terminal device from the network device using the first resource may be the amount of resources required for sending uplink information and the amount of resources actually available for sending uplink information the difference between. In some other embodiments of the present application, if the amount of resources required for sending uplink information does not exceed the amount of resources actually available for sending uplink information, the terminal device does not need to request uplink resources from the network device.
  • Manner 3 When there is no available resource for uplink information transmission, the terminal device uses the first resource to request the second resource from the network device. That is to say, when the terminal device determines that there is no available uplink resource, it uses the first resource to request the second resource from the network device. In this case, the terminal device does not need to judge whether there is uplink information to be sent. If there is no uplink information to be sent and the terminal device has no available uplink resources, the terminal device may also be triggered to use the first resource to request the second resource from the network device.
  • the embodiment of the present application may also trigger the terminal device to use the first resource to request the second resource from the network device in other ways, which is not limited in the embodiment of the present application.
  • the terminal device may first determine the first resource, and then use the first resource to request the second resource from the network device. For example, if the terminal device determines that there are no available uplink resources, it may first determine the first resource, and then use the first resource to request the second resource from the network device.
  • the network device sends resource request configuration information to the terminal device, where the resource request configuration information is used to indicate that the first resource is used to request the second resource.
  • the terminal device may determine the first resource according to the resource request configuration information.
  • using the first resource to request the second resource may be predefined by a protocol. In this case, the terminal device may determine the first resource according to the predefined configuration.
  • the network device detects an uplink resource request by using the first resource, that is, the network device detects that the terminal device requests the second resource by using the first resource.
  • the network device detects that the terminal device requests the second resource by using the first resource, and sends resource configuration information to the terminal device, where the resource configuration information is used to indicate the second resource.
  • the terminal device receives resource configuration information from the network device. Therefore, the terminal device can send uplink information on the second resource after receiving the resource configuration information.
  • the DRX cycle is usually not an integer multiple of the time slot, the time domain position of the DRX cycle cannot be aligned with the arrival time of the downlink information, which will cause the terminal device to be unable to effectively transmit data during the DRX cycle.
  • the downlink information sent by the network device is received in the window.
  • the DRX cycle can be the cycle of a frame of downlink video data, such as 16.67ms, and the time slot length in the 5G network is 0.5ms, that is to say, the DRX cycle is not an integer of the time slot times.
  • the network device can send position adjustment indication information to the terminal device, which is used to adjust the time domain position of the DRX cycle, so that the time domain position at the start moment of the data transmission time window of the DRX cycle is the same as the time domain position at the arrival time of the downlink video data. Aligning or maintaining the same position helps to improve the receiving efficiency of the terminal device for downlink video data within the data transmission time window.
  • the method of adjusting the time domain position of the DRX cycle includes the following method 1 or method 2:
  • Method 1 If the network device detects that the difference between the arrival time of the downlink video data and the start time of the data transmission time window of the DRX cycle exceeds a threshold, it notifies the terminal device to adjust the time domain position of the start time of the DRX cycle.
  • the adjusted time domain position of the start time of the DRX cycle may be determined according to the difference between the time when the downlink video data arrives and the start time of the data transmission time window of the DRX cycle.
  • the network device can configure a drift speed of a DRX cycle for the terminal device.
  • the drift speed can be used to instruct the terminal device to adjust the time domain position of the DR cycle forward or backward by Xms per second, where X is the value of the drift velocity.
  • the terminal device can automatically adjust the time domain position of the DRX cycle according to the drift speed.
  • the drift speed may be determined according to the difference between the arrival time of the downlink video data and the start time of the data transmission time window of the DRX cycle.
  • the first resource may include one or more of ACK/NACK resources, SR resources and/or PRACH resources.
  • Embodiment 1 Utilize ACK/NACK resources located in the data transmission time window to request uplink resources.
  • FIG. 4 it is a schematic flow chart of a communication method in the embodiment of the present application, which specifically includes the following steps:
  • the terminal device detects that there is uplink information to be transmitted during the Nth DRX sleep period, where N is a positive integer. Wherein, for a DRX cycle, the sleep period is located after the activation period, as shown in FIG. 1a.
  • the terminal device judges whether the actually available resource amount for sending uplink information satisfies the resource amount required for sending uplink information, if yes, go to 45 , otherwise go to 43 .
  • the terminal device uses the ACK/NACK resources in the data transmission time window in the N+1th DRX cycle to request uplink resources from the network device.
  • the network device detects that the terminal device requests uplink resources on the ACK/NACK resources located in the data transmission time window in the N+1 th DRX cycle.
  • the terminal device uses the ACK/NACK resources of the Kth TB in the data transmission time window to request uplink resources.
  • the value of K is 1, which may be predefined by a protocol, or may be indicated by a network device.
  • the network device sends first indication information to the terminal device, where the first indication information is used to indicate K.
  • the Kth TB refers to the Kth TB received within the data transmission time window.
  • the terminal device uses the ACK/NACK resources of two or more TBs in the data transmission time window to request uplink resources, specifically how many TBs or which TBs ACK/NACK resources can be predefined by the protocol , may also be indicated by the network device to the terminal device, which is not limited.
  • the terminal device detects that there is uplink information that needs to be transmitted in the Nth DRX cycle, and the terminal device judges that the amount of resources actually available for sending uplink information does not meet the requirements for sending uplink information. The resource amount, thereby triggering the terminal device to request the second resource.
  • the network device sends downlink information to the terminal device in the data transmission time window in the N+1th DRX cycle. It can be understood that the way for the network device to send downlink information to the terminal device is through TB.
  • the terminal device After the terminal device receives the Kth TB in the data transmission time window, it can use the Kth TB in the data transmission time window.
  • the ACK/NACK resources of the network device can send HARQ information to the network device, so that the terminal device can use the ACK/NACK resource of the Kth TB in the data transmission time window in the N+1th DRX cycle to request an uplink from the network device resource.
  • the terminal device may use the ACK/NACK resources located in the data transmission time window to implicitly or explicitly request uplink resources from the network device.
  • the terminal device uses the ACK/NACK resource of the Kth TB in the data transmission time window to implicitly request uplink resources from the network device.
  • the ACK/NACK resource of the K th TB includes a first sub-resource and a second sub-resource.
  • the terminal device uses the first sub-resource to send the HARQ information of the Kth TB to the network device.
  • the terminal device requests an uplink resource. That is to say, if the terminal device needs to request uplink resources, for example, the terminal device has uplink information to be transmitted, the first sub-resource is used to send the HARQ information of the Kth TB.
  • the network device For the network device, if the network device receives the HARQ information of the Kth TB on the first sub-resource, it determines that it is detected that the terminal device requests an uplink resource. Alternatively, the terminal device uses the second sub-resource to send the HARQ information of the Kth TB to the network device. In this case, the terminal device does not request uplink resources. That is to say, if the terminal device does not need to request uplink resources, it uses the second subresource to send the HARQ information of the Kth TB. For the network device, if the network device receives the HARQ information of the Kth TB on the second sub-resource, it determines that no terminal device requesting uplink resources is detected.
  • the terminal device uses the ACK/NACK resource located in the data transmission time window to explicitly request the uplink resource from the network device in the following manner:
  • the terminal device sends a resource request message to the network device on the ACK/NACK resource within the data transmission time window, where the resource request message is used to request uplink resources.
  • the network device sends resource configuration information to the terminal device, and correspondingly, the terminal device receives the resource configuration information of the network device, and the resource configuration information is used to indicate uplink resources.
  • the terminal device sends uplink information to the network device, and correspondingly, the network device receives the uplink information sent by the terminal device.
  • the terminal device uses the ACK/NACK resource located in the data transmission time window for M times and has not received the resource configuration information from the network device, it sends a random access request message to the network device to Initiate random access, and request uplink resources through the random access process.
  • the random access request message is used to request uplink resources.
  • M is a positive integer
  • M may be indicated to the terminal device by the network device, may be predefined by a protocol, or may be determined by the terminal device based on a certain policy, which is not limited.
  • the ACK/NACK resources used for each request for uplink resources can be located in the same data transmission time window, or in different data transmission time windows, or part of them are in the same data transmission time window, and some are not in the same data transmission time window. Within the data transmission time window, this is not limited.
  • the network device sends resource request configuration information to the terminal device, where the resource request configuration information is used to indicate that ACK/NACK resources are used to request uplink resources.
  • the resource request configuration information is used to indicate that ACK/NACK resources are used to request uplink resources.
  • using ACK/NACK resources to request uplink resources may be predefined by the protocol.
  • the terminal device may use the ACK/NACK resources in the Nth DRX activation period to request uplink resources from the network device. That is, the terminal device can use the ACK/NACK resources in the data transmission time window in the Nth DRX cycle to request uplink resources from the network device.
  • the terminal device can use the ACK/NACK resources in the N+1th DRX activation period to request uplink resources from the network device. That is, the terminal device can use the ACK/NACK resources in the data transmission time window in the N+1 th DRX cycle to request uplink resources from the network device.
  • Embodiment 2 Utilize SR resources and/or PRACH resources located in the data transmission time window to request uplink resources.
  • FIG. 6 it is a schematic flowchart of a communication method according to an embodiment of the present application, which specifically includes the following steps:
  • the terminal device detects that there is uplink information to be transmitted during the Nth DRX sleep period, where N is a positive integer. Wherein, for a DRX cycle, the sleep period is located after the activation period, as shown in FIG. 1a.
  • the terminal device judges whether the actually available resource amount for sending uplink information satisfies the resource amount required for sending uplink information, if yes, go to 65, otherwise go to 63.
  • the terminal device uses the SR resource and/or the PRACH resource in the data transmission time window within the N+1 th DRX cycle to request uplink resources from the network device.
  • the network device detects that the terminal device requests an uplink resource on the SR resource and/or the PRACH resource located in the data transmission time window in the N+1 th DRX cycle.
  • the terminal device uses the Lth SR resource and/or PRACH resource in the data transmission time window to request uplink resources.
  • the value of L is 1, which may be predefined by a protocol, or may be indicated by a network device.
  • the network device sends second indication information to the terminal device, where the second indication information is used to indicate L.
  • the L th SR resource and/or PRACH resource refers to the L th SR resource and/or PRACH resource within the data transmission time window.
  • the terminal device uses two or more SR resources and/or PRACH resources in the data transmission time window to request uplink resources, specifically, several SR resources and/or PRACH resources may be predefined by the protocol, or may be It is indicated by the network device to the terminal device, which is not limited.
  • the terminal device detects that there is uplink information that needs to be transmitted in the Nth DRX cycle, and the terminal device judges that the amount of resources actually available for sending uplink information is not sufficient for The amount of resources required for sending the uplink information, thereby triggering the terminal device to request the second resource.
  • the terminal device detects SR resources in the data transmission time window in the N+1 DRX cycle, wherein SR resource 1, SR resource 2, SR resource 3 and SR resource 4 are periodic SR resources, and SR resource 1 and SR resource 4 are periodic SR resources.
  • SR resource 2 is located in the Nth DRX cycle
  • SR resource 3 and SR resource 4 are located in the N+1th DRX cycle.
  • the terminal device can use the SR resources in the data transmission time window in the N+1th DRX cycle, for example, SR resource 3 and/or SR resource 4, to request uplink resources from the network device.
  • the terminal device may use the SR resource and/or the PRACH resource located in the data transmission time window to request uplink resources from the network device based on the priorities of the SR resource and the PRACH resource.
  • the terminal device can preferentially select SR resources as the first resource, and request uplink resources from the network device .
  • the priorities of the SR resource and the PRACH resource may be predefined by the protocol, or may be indicated to the terminal device by the network device, which is not limited.
  • the terminal device may preferentially select the PRACH resource as the first resource, and request an uplink resource from the network device. resource.
  • the priorities of the SR resource and the PRACH resource may be predefined by the protocol, or may be indicated to the terminal device by the network device, which is not limited.
  • the terminal device can simultaneously select the SR resources and the PRACH resources as the first resources, and send the SR resources to the network The device requests uplink resources.
  • the priorities of the SR resource and the PRACH resource may be predefined by the protocol, or may be indicated to the terminal device by the network device, which is not limited.
  • the terminal device may use the SR resources and/or PRACH resources located in the data transmission time window to request uplink resources from the network device through the following manner a or manner b.
  • Mode a the terminal device sends a resource request message to the network device on the SR resource and/or the PRACH resource within the data transmission time window, where the resource request message is used to request uplink resources.
  • the network device may configure a maximum sending times for the resource request message. It can be understood that, in the current protocol, the resource request message has been configured with a maximum number of sending times. Since in the current protocol, the SR resource and/or the PRACH resource used for sending the resource request message may be located within the entire DRX cycle, therefore, the maximum number of sending times configured in the current protocol is relatively large.
  • the SR resources and/or PRACH resources used for sending the resource request message are located within the data transmission time window, that is, since the SR resources located outside the data transmission time window are not used in the embodiment of the present application and/or PRACH resources, so that the SR resources and/or PRACH resources used to send the resource request message are less than the SR resources and/or PRACH resources specified in the current protocol. Therefore, the resource request message configured by the network device in the embodiment of this application The maximum sending times may be less than the maximum sending times of the resource request message stipulated in the current protocol.
  • Manner b the terminal device sends a preamble to the network device on the PRACH resource within the data transmission time window, where the preamble is used to request uplink resources.
  • the network device sends resource configuration information to the terminal device, and correspondingly, the terminal device receives the resource configuration information of the network device, and the resource configuration information is used to indicate uplink resources.
  • the terminal device sends uplink information to the network device, and correspondingly, the network device receives the uplink information sent by the terminal device.
  • the terminal device can use any resource in the DRX cycle.
  • the SR resource and/or the PRACH resource requests the second resource from the network device. It can be understood that any SR resources and/or PRACH resources in the DRX cycle may include SR resources and/or PRACH resources located within the data transmission time window, and may also include SR resources and/or PRACH resources located outside the data transmission time window .
  • S is a positive integer
  • S may be indicated by the network device to the terminal device, may also be predefined by a protocol, or may be determined by the terminal device based on a certain policy, which is not limited.
  • the terminal device can select the SR resource and/or the PRACH resource within a time period, which helps the terminal device to effectively determine the SR resource and/or the PRACH resource.
  • the duration of the time period is longer than the duration of the data transmission time window, and the starting moment of the time period is the moment when the terminal device needs to request the second resource.
  • the network device configures periodic SR resources for the terminal device, and the terminal device may determine the first resource based on the SR resources in the first time period.
  • the first time period is a time period for detecting SR resources.
  • the duration of the first time period is longer than the duration of the data transmission time window, and the starting moment of the first time period is the moment when the terminal device needs to request the second resource.
  • the duration value of the first time period may be predefined by the protocol, or may be indicated to the terminal device by the network device, which is not limited.
  • FIG. 8 it is a schematic flowchart of a method for determining a first resource according to an embodiment of the present application, which specifically includes the following steps:
  • the terminal device detects that it is necessary to request the second resource in the Nth data transmission time window, and starts timing of the first time period.
  • the terminal device judges whether there is an SR resource in the N+1th data transmission time window in the first time period. If yes, go to 83, otherwise go to 84.
  • the terminal device determines that the SR resource in the N+1th data transmission time window is the first resource.
  • the terminal device judges whether all data transmission time windows within the first time period have SR resources. If so, go to step 85, otherwise go to step 86.
  • the terminal device determines an SR resource within a data transmission time window within the first time period as the first resource.
  • the terminal device determines that the SR resource closest to the time when the second resource needs to be requested is the first resource. It can be understood that the SR resource closest to the moment when the second resource needs to be requested may be an SR resource located within the data transmission time window, or may be an SR resource located outside the data transmission time window, and this embodiment of the present application does not make any Special limited.
  • the manner in which the terminal device determines the first resource based on the PRACH resources in the time period may specifically refer to the manner in which the terminal device determines the first resource based on the SR resources in the time period, which will not be repeated here.
  • the manner in which the terminal device determines the first resource based on the PRACH resources in the time period and the manner in which the terminal device determines the first resource based on the SR resources in the time period can be used simultaneously. For example, when the network device configures the first resource for the terminal device at the same time In the case that the periodic SR resource and the PRACH resource are not available, the terminal device may determine the first resource based on the SR resource and the PRACH resource in the first time period.
  • the manner in which the terminal device determines the first resource based on the PRACH resources within a time period and the manner in which the terminal device determines the first resource based on the SR resources within a time period can be used separately.
  • the terminal device may determine the first resource based on the SR resources in the first time period; when the network device does not configure periodic SR resources for the terminal device, but configures periodic PRACH resources, The terminal device may determine the first resource based on the PRACH resources in the first time period.
  • the terminal device after the terminal device uses the SR resource within the data transmission time window to request the second resource for the first time, and does not receive the resource configuration information sent by the network device, the terminal device requests the second resource from the re-device again.
  • the SR resource used by the resource is also within the data transmission time window;
  • the terminal device requests the second resource using the PRACH resource in the data transmission time window for the first time, and does not receive the resource configuration information sent by the network device, the terminal device requests the second resource from the device again. data transmission time window.
  • the terminal device may first start a timer, use the SR resource in the data transmission time window to request the second resource within the effective time range of the timer, and after the timer expires, it may The second resource is requested from the network device by using the SR resource in any time period.
  • the timer may be started when the terminal device determines that there is uplink information to be transmitted, and the duration value of the timer may be predefined by the protocol, or may be indicated to the terminal device by the network device, which is not limited.
  • the terminal device may start a timer first, and use the PRACH resource in the data transmission time window to request the second resource within the effective time range of the timer. After the timer expires, the PRACH resource in any time period may be used. The resource requests a second resource from the network device.
  • the terminal device starts the first timer when it determines that there is uplink information to be transmitted, wherein the duration value of the first time period may be predefined by the protocol, or may be indicated to the terminal device by the network device Yes, there is no limit to this. If the first timer has not expired, and the terminal device is using the SR resource within the data transmission time window to request the second resource, and has not received the resource configuration information indicating the second resource sent by the network device, the terminal device can continue to use the SR resource. The SR resource within the data transmission time window requests the second resource. If the first timer expires and the terminal device has not received the resource configuration information for indicating the second resource sent by the network device, it may request the second resource from the network device using SR resources within any time period.
  • the manner in which the terminal device determines the first resource based on the timer-based PRACH resource may specifically refer to the above-mentioned manner in which the terminal device determines the first resource based on the timer-based SR resource, and details are not repeated here.
  • the network device sends resource request configuration information to the terminal device, where the resource request configuration information is used to indicate that SR resources and/or PRACH resources are used to request uplink resources.
  • resource request configuration information is used to indicate that SR resources and/or PRACH resources are used to request uplink resources.
  • requesting uplink resources using SR resources and/or PRACH resources may be predefined by a protocol.
  • the terminal device may use the SR resources and/or PRACH resources in the Nth DRX activation period to request uplink resources from the network device. That is, the terminal device can use the SR resources and/or PRACH resources in the data transmission time window in the Nth DRX cycle to request uplink resources from the network device.
  • the terminal device can use the SR resources and/or PRACH resources in the N+1th DRX activation period to request uplink resources from the network device. That is, the terminal device can use the SR resources and/or PRACH resources in the data transmission time window in the N+1 th DRX cycle to request uplink resources from the network device.
  • the communication method provided in the embodiments of the present application is introduced from the perspective of the network device and the terminal device as execution subjects.
  • the terminal device and the network device may include a hardware structure and/or a software module, and realize the above-mentioned various functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Function. Whether one of the above-mentioned functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • FIG. 9 is a schematic structural diagram of a communication device 90 provided by an embodiment of the present application, which may include: a determination module 91 and a request module 92; wherein,
  • the determining module 91 is used for the terminal device to determine the first resource, the first resource is located in the data transmission time window, and the data transmission time window is used for receiving downlink information;
  • the requesting module 92 is configured for the terminal device to use the first resource to request a second resource from the network device, and the second resource is used for sending uplink information.
  • the determination module 91 is further used for the terminal device to determine that the amount of resources required for sending uplink information exceeds the actually available amount of resources for sending uplink information.
  • the determination module 91 is also used for the terminal device to determine uplink information that needs to be transmitted.
  • the determination module 91 is further configured for the terminal device to determine that there is no available resource for uplink information transmission.
  • the first resource is located in the Nth data transmission time window, the Nth data transmission time window is used for receiving the Kth transmission block TB, and the first resource is used for the reception of the Kth TB
  • N and K are positive integers.
  • the foregoing communication device 90 further includes:
  • the receiving module 93 is configured for the terminal device to receive first indication information from the network device, where the first indication information is used to indicate K.
  • the first resource includes a first subresource and a second subresource, and the first subresource and the second subresource are respectively used for sending the HARQ information of the Kth TB.
  • the request module 92 is further configured for the terminal device to use the first subresource to send the HARQ information of the Kth TB.
  • the requesting module 92 is further configured for the terminal device to use the second sub-resource to send the HARQ information of the Kth TB if the terminal device does not need to request the second resource.
  • the request module 92 is further configured for the terminal device to send a resource request message to the network device on the first resource, where the resource request message is used to request the second resource.
  • the receiving module 93 is further configured for the terminal device to receive uplink resource request configuration information from the network device, where the uplink resource request configuration information is used to indicate that the first resource is used to request the second resource.
  • the receiving module 93 is further configured for the terminal device to receive resource configuration information sent from the network device, where the resource configuration information is used to indicate the second resource.
  • the above request module 92 is also used to send a random access request to the network device if the terminal device uses M first resources to request the second resource and has not received the resource configuration information sent by the network device. Request, the random access request is used to request the second resource, and M is a positive integer.
  • the first resource is a scheduling request SR resource and/or a physical random access channel PRACH resource.
  • the determination module 91 is further configured to determine, by the terminal device, that the SR resource is the first resource if the data transmission time window includes SR resources and PRACH resources; or,
  • the terminal device determines that SR resources and PRACH resources are the first resources; or,
  • the terminal device determines the first resource from the SR resource and the PRACH resource according to the configuration of the network device.
  • the data transmission time window is located within the first time period, the duration of the first time period is longer than the duration of the data transmission time window, and the starting moment of the first time period is when the terminal device needs to request the first Two resource moments.
  • the determination module 91 is further configured to if there is no SR resource in the data transmission time window in the first time period and/or there is no PRACH resource in the data transmission time window in the first time period The terminal device determines that the SR resource and/or the PRACH resource closest to the time when the second resource needs to be requested is the first resource.
  • the above request module 92 is also used for the terminal device to use any The SR resource and/or the PRACH resource within the time period requests the network device for the second resource, wherein the first timer is started when the terminal device determines that there is uplink information to be transmitted.
  • the communication device 90 may be a chip or a terminal device.
  • FIG. 10 is a schematic structural diagram of a communication device 1000 provided in an embodiment of the present application, which may include: a detection module 1010; wherein,
  • the detection module 1010 is used for the network device to use the first resource to detect that the terminal device requests the second resource, the first resource is located within the data transmission time window, the data transmission time window is used for sending downlink information, and the second resource is used for sending uplink information .
  • the foregoing communication device 1000 further includes:
  • the sending module 1020 is configured for the network device to send uplink resource request configuration information to the terminal device; wherein the uplink resource request configuration information is used to indicate that the first resource is used to request the second resource.
  • the first resource is located in the Nth data transmission time window, the Nth data transmission time window is used for sending the Kth transmission block TB, and the first resource is used for the transmission of the Kth TB
  • N and K are positive integers.
  • the sending module 1020 is further configured for the network device to send first indication information to the terminal device, where the first indication information is used to indicate K.
  • the first resource includes a first subresource and a second subresource, and the first subresource and the second subresource are respectively used for sending the HARQ information of the Kth TB.
  • the detection module 1010 is further configured to determine that the terminal device requests the second resource when the network device receives the HARQ information of the Kth TB on the first subresource.
  • the detection module 1010 is further configured to determine that no terminal device requesting the second resource is detected when the network device receives the HARQ information of the Kth TB on the second subresource.
  • the detection module 1010 is further configured for the network device to receive a resource request message from the terminal device on the first resource, where the resource request message is used to request the second resource.
  • the sending module 1020 is further configured for the network device to send resource configuration information to the terminal device, where the resource configuration information is used to indicate the second resource.
  • the first resource is an SR resource and/or a PRACH resource.
  • the sending module 1020 is further configured for the network device to send priority indication information to the terminal device, where the priority indication information indicates the priority of using the SR resource and the PRACH resource to request the second resource.
  • the data transmission time window is located within the first time period, the duration of the first time period is longer than the duration of the data transmission time window, and the starting moment of the first time period is when the terminal device needs to request the first Two resource moments.
  • the sending module 1020 is further configured for the network device to send window adjustment instruction information to the terminal device, where the window adjustment instruction information indicates to align the start time of the discontinuous reception DRX window with the arrival time of downlink information.
  • the communications apparatus 1000 may be a chip or a network device.
  • FIG. 11 is a schematic structural diagram of a communication device 1100 provided in an embodiment of the present application.
  • the communication device 1100 may include: at least one processor; and at least one memory communicatively connected to the processor.
  • the foregoing communication apparatus 1100 may be a network device or a terminal device.
  • the memory stores program instructions that can be executed by the processor. If the communication device 1100 is a network device, the processor can call the program instructions to execute the actions performed by the network device in the communication method provided by the embodiment of the present application. If the communication device 1100 1100 is a terminal device, and the processor invokes the above-mentioned program instructions to perform actions performed by the terminal device in the communication method provided by the embodiment of the present application.
  • the communication device 1100 may take the form of a general-purpose computing device.
  • the components of the communication device 1100 may include, but are not limited to: one or more processors 1110 , a memory 1120 , a communication bus 1140 connecting different system components (including the memory 1120 and the processor 1110 ), and a communication interface 1130 .
  • Communication bus 1140 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus structures.
  • these architectures include but are not limited to Industry Standard Architecture (Industry Standard Architecture, ISA) bus, Micro Channel Architecture (Micro Channel Architecture, MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (Video Electronics Standards Association, VESA) local bus and peripheral component interconnection (Peripheral Component Interconnection, PCI) bus.
  • Communications device 1100 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by communication device 1100 and include both volatile and nonvolatile media, removable and non-removable media.
  • the memory 1120 may include computer system-readable media in the form of volatile memory, such as random access memory (Random Access Memory, RAM) and/or cache memory.
  • the communication device 1100 may further include other removable/non-removable, volatile/nonvolatile computer system storage media.
  • a disk drive for reading and writing to a removable nonvolatile disk such as a "floppy disk”
  • a removable nonvolatile disk such as a Compact Disk ROM (Compact Disk).
  • CD-ROM Compact Disk ROM
  • DVD-ROM Digital Video Disc Read Only Memory
  • each drive may be connected to communication bus 1140 through one or more data media interfaces.
  • the memory 1120 may include at least one program product having a set (for example, at least one) of program modules configured to execute the functions of the various embodiments of the present application.
  • a program/utility having a set (at least one) of program modules may be stored in memory 1120, such program modules including, but not limited to, an operating system, one or more application programs, other program modules, and program data, in which Each or some combination of these may include implementations of network environments.
  • the program modules generally perform the functions and/or methods in the embodiments described herein.
  • the communication device 1100 may also communicate with one or more external devices (such as keyboards, pointing devices, displays, etc.), and may also communicate with one or more devices that enable the user to interact with the communication device 1100, and/or communicate with the device that enables the user to interact with the communication device 1100
  • Communications apparatus 1100 is capable of communicating with any device (eg, network card, modem, etc.) that communicates with one or more other computing devices. Such communication may occur through communication interface 1130 .
  • the communication device 1100 can also communicate with one or more networks (such as a local area network (Local Area Network, LAN), a wide area network (Wide Area Network, WAN) and/or a public network, such as Internet) communication, the above-mentioned network adapter can communicate with other modules of the electronic device through the communication bus 1140 .
  • networks such as a local area network (Local Area Network, LAN), a wide area network (Wide Area Network, WAN) and/or a public network, such as Internet
  • networks such as a local area network (Local Area Network, LAN), a wide area network (Wide Area Network, WAN) and/or a public network, such as Internet) communication
  • the above-mentioned network adapter can communicate with other modules of the electronic device through the communication bus 1140 .
  • other hardware and/or software modules may be used in conjunction with communication device 1100, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, disk arrays (Re
  • Each functional unit in each embodiment of the embodiment of the present application may be integrated into one processing unit, or each unit may physically exist separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage
  • the medium includes several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: flash memory, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk, and other various media capable of storing program codes.

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Abstract

一种通信方法及装置,涉及通信技术领域,该方法包括:终端设备确定第一资源,第一资源位于数据传输时间窗内,数据传输时间窗用于下行信息的接收;终端设备使用第一资源向网络设备请求第二资源,第二资源用于上行信息的发送。本申请实施例提供的方法,能够利用位于数据传输时间窗内的资源请求上行资源,从而有助于降低终端设备请求上行资源导致的额外耗电,进而有助于节省终端设备的功耗。

Description

通信方法及装置
本申请要求于2021年12月30日提交中国专利局、申请号为202111644759.X、申请名称为“通信方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术领域,尤其涉及一种通信方法及装置。
背景技术
随着终端设备的能力的不断增强,终端设备可以支持扩展现实(extended reality,XR)业务。其中,支持XR业务的终端设备可以称之为XR终端设备。例如,XR终端设备可以为虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备等。
通常,对于利用电池供电的XR终端设备来说,针对下行传输具有周期性的XR业务,如视频业务,通过引入非连续接收(Discontinious Reception,DRX)机制,以节省下行传输的能耗,从而有助于延长电池的使用时长。
然而,对于XR业务的上行传输来说,上行数据的产生一般与用户行为相关,而用户行为是随机的。因此,针对上行传输的研究,对于进一步节省XR终端设备的功耗,增强XR终端设备的续航能力具有重要的实际意义。
发明内容
本申请实施例提供了一种通信方法及装置,能够利用位于数据传输时间窗内的资源请求上行资源,从而有助于降低终端设备请求上行资源导致的额外耗电,进而有助于节省终端设备的功耗。
第一方面,本申请实施例提供了一种通信方法,包括:
终端设备确定第一资源,第一资源位于数据传输时间窗内,数据传输时间窗用于下行信息的接收;
终端设备使用第一资源向网络设备请求第二资源,第二资源用于上行信息的发送。
本申请实施例中,通过确定位于数据传输时间窗内的第一资源,能够利用位于数据传输时间窗内的第一资源请求上行资源,从而有助于降低终端设备请求上行资源导致的额外耗电,进而有助于节省终端设备的功耗。
其中一种可能的实现方式中,上述方法还包括:
终端设备确定用于发送上行信息所需的资源量超过实际可用的用于发送上行信息的资源量。
其中一种可能的实现方式中,上述方法还包括:
终端设备确定有需要传输的上行信息。
其中一种可能的实现方式中,上述方法还包括:
终端设备确定无可用的用于上行信息传输的资源。
其中一种可能的实现方式中,第一资源位于数据传输时间窗内,数据传输时间窗用于下行信息的接收,包括:
第一资源位于第N个数据传输时间窗内,第N个数据传输时间窗用于第K个传输块TB的接收,第一资源用于第K个TB的混合自动重传请求HARQ信息的发送,N、K为正整数。
本申请实施例中,终端设备利用数据传输时间窗内的用于发送第K个TB的HARQ信息的资源请求第二资源,有助于终端设备快速请求第二资源,并可以有助于节省终端设备的功耗。
其中一种可能的实现方式中,上述方法还包括:
终端设备接收来自网络设备的第一指示信息,第一指示信息用于指示K。
其中一种可能的实现方式中,第一资源包括第一子资源和第二子资源,第一子资源和第二子资源分别用于第K个TB的HARQ信息的发送。
其中一种可能的实现方式中,终端设备使用第一资源向网络设备请求第二资源,包括:
终端设备使用第一子资源发送第K个TB的HARQ信息。
本申请实施例中,终端设备通过第一子资源发送第K个TB的HARQ信息,可以实现隐式向网络设备请求第二资源,有助于节省终端设备的信令开销。
其中一种可能的实现方式中,上述方法还包括:
终端设备若无需请求第二资源,使用第二子资源发送第K个TB的HARQ信息。
其中一种可能的实现方式中,终端设备使用第一资源向网络设备请求第二资源,包括:
终端设备在第一资源上,向网络设备发送资源请求消息,资源请求消息用于请求第二资源。
其中一种可能的实现方式中,上述方法还包括:
终端设备接收来自网络设备的上行资源请求配置信息,上行资源请求配置信息用于指示使用第一资源请求第二资源。
其中一种可能的实现方式中,上述方法还包括:
终端设备接收来自网络设备发送的资源配置信息,资源配置信息用于指示第二资源。
其中一种可能的实现方式中,上述方法还包括:
终端设备若使用M个第一资源请求第二资源,仍未接收到网络设备发送的资源配置信息,则向网络设备发送随机接入请求,随机接入请求用于请求第二资源,M为正整数。
本申请实施例中,终端设备在使用M个第一资源请求第二资源失败后,发起随机接入,有助于终端设备尽快获取第二资源,有助于上行信息的尽快发送。
其中一种可能的实现方式中,第一资源为调度请求SR资源和/或物理随机接入信 道PRACH资源。
其中一种可能的实现方式中,终端设备确定第一资源,包括:
若数据传输时间窗内包括SR资源和PRACH资源,终端设备确定SR资源为第一资源;或者,
若数据传输时间窗内包括SR资源和PRACH资源,终端设备确定SR资源和PRACH资源为第一资源;或者,
若数据传输时间窗内包括SR资源和PRACH资源,终端设备根据网络设备的配置,从SR资源和PRACH资源中确定第一资源。
其中一种可能的实现方式中,数据传输时间窗位于第一时间段内,第一时间段的时长大于数据传输时间窗的时长,且第一时间段的起始时刻为终端设备有需要请求第二资源的时刻。
其中一种可能的实现方式中,终端设备确定第一资源,包括:
若第一时间段内的数据传输时间窗内均无SR资源和/或第一时间段内的数据传输时间窗内均无PRACH资源,终端设备确定距离有需要请求第二资源的时刻最近的SR资源和/或PRACH资源为第一资源。
其中一种可能的实现方式中,上述方法还包括:
终端设备在第一定时器计时结束后,仍未接收到网络设备发送的用于指示第二资源的资源配置信息,则采用任一时间段内的SR资源和/或PRACH资源向网络设备请求第二资源,其中,第一定时器在终端设备确定有上行信息需要传输时启动。
第二方面,本申请实施例还提供一种通信方法,包括:
网络设备使用第一资源检测终端设备请求第二资源,第一资源位于数据传输时间窗内,数据传输时间窗用于下行信息的发送,第二资源用于上行信息的发送。
其中一种可能的实现方式中,上述方法还包括:
网络设备向终端设备发送上行资源请求配置信息;其中,上行资源请求配置信息用于指示使用第一资源请求第二资源。
其中一种可能的实现方式中,第一资源位于数据传输时间窗内,数据传输时间窗用于下行信息的发送,包括:
第一资源位于第N个数据传输时间窗内,第N个数据传输时间窗用于第K个传输块TB的发送,第一资源用于第K个TB的混合自动重传请求HARQ信息的发送,N、K为正整数。
其中一种可能的实现方式中,上述方法还包括:
网络设备向终端设备发送第一指示信息,第一指示信息用于指示K。
其中一种可能的实现方式中,第一资源包括第一子资源和第二子资源,第一子资源和第二子资源分别用于第K个TB的HARQ信息的发送。
其中一种可能的实现方式中,上述方法还包括:
网络设备在第一子资源上接收到第K个TB的HARQ信息,则确定检测到终端设备请求第二资源。
其中一种可能的实现方式中,上述方法还包括:
网络设备在第二子资源上接收到第K个TB的HARQ信息,则确定未检测到终端 设备请求第二资源。
其中一种可能的实现方式中,网络设备使用第一资源检测终端设备请求第二资源,包括:
网络设备在第一资源上接收来自终端设备的资源请求消息,资源请求消息用于请求第二资源。
其中一种可能的实现方式中,上述方法还包括:
网络设备向终端设备发送资源配置信息,资源配置信息用于指示第二资源。
其中一种可能的实现方式中,第一资源为SR资源和/或PRACH资源,
其中一种可能的实现方式中,上述方法还包括:
网络设备向终端设备发送优先级指示信息,优先级指示信息指示使用SR资源和PRACH资源请求第二资源的优先级。
其中一种可能的实现方式中,数据传输时间窗位于第一时间段内,第一时间段的时长大于数据传输时间窗的时长,且第一时间段的起始时刻为终端设备有需要请求第二资源的时刻。
其中一种可能的实现方式中,上述方法还包括:
网络设备向终端设备发送窗口调整指示信息,窗口调整指示信息指示将非连续接收DRX窗口的起始时刻与下行信息的到达时刻对齐。
第三方面,本申请实施例提供一种通信装置,包括:处理器和存储器,存储器用于存储计算机程序;处理器用于运行计算机程序,执行如第一方面所述的通信方法。
第四方面,本申请实施例还提供一种通信装置,包括:处理器和存储器,存储器用于存储计算机程序;处理器用于运行计算机程序,执行如第二方面所述的通信方法。
第五方面,本申请实施例提供了一种计算机可读存储介质,该计算机可读存储介质中存储有计算机程序,当其在计算机上运行时,使得计算机实现如第一方面至第二方面所述的通信方法。
第六方面,本申请实施例提供了一种计算机程序产品,所述计算机程序产品包括计算机程序,当上述计算机程序被计算机执行时,使得计算机实现如第一方面或至第二方面所述的通信方法。
在一种可能的实现方式中,第六方面中的程序可以全部或者部分存储在与处理器封装在一起的存储介质上,也可以部分或者全部存储在不与处理器封装在一起的存储器上。
第七方面,本申请实施例提供了一种通信装置,包括:一个或多个功能模块,该一个或多个功能模块用于执行第一方面提供的任意一种的通信方法。
第八方面,本申请实施例提供了一种通信装置,包括:一个或多个功能模块,该一个或多个功能模块用于执行第二方面提供的任意一种的通信方法。
第九方面,提供了一种通信系统,包括:用于执行第一方面提供的任意一种方法的通信装置和用于执行第二方面提供的任意一种方法的通信装置。
其中,第三方面和第七方面中的通信装置可以为芯片或终端设备,第四方面和第八方面中的通信装置可以为芯片或网络设备。
附图说明
图1a为本申请提供的DRX周期一个实施例的示意图;
图1b为本申请提供的DRX周期另一个实施例的示意图;
图2为本申请实施例提供的通信系统网络架构示意图;
图3为本申请提供的通信方法一个实施例的流程示意图;
图4为本申请提供的通信方法另一个实施例的流程示意图;
图5为本申请提供的上行资源请求方式一个实施例的示意图;
图6为本申请提供的通信方法再一个实施例的流程示意图;
图7为本申请提供的上行资源请求方式另一个实施例的示意图;
图8为本申请实施例提供的确定第一资源方法的流程示意图;
图9为本申请提供的通信装置一个实施例的结构示意图;
图10为本申请提供的通信装置另一个实施例的结构示意图;
图11为本申请提供的通信装置再一个实施例的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。其中,在本申请实施例的描述中,除非另有说明,“/”表示或的意思。例如,A/B可以表示A或B。本文中的“和/或”仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。
需要指出的是,本申请实施例中涉及的“第一”、“第二”等词汇,仅用于区分描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量,也不能理解为指示或暗示顺序。本申请实施例中,“至少一个”指的是一个或多个,“多个”指的是两个或两个以上。
此外,“以下至少一项(个)”或者其类似表达,是指的这些项中的任意组合,可以包括单项(个)或复数项(个)的任意组合。例如,A、B或C中的至少一项(个),可以表示:A,B,C,A和B,A和C,B和C,或A、B和C。其中,A、B、C中的每个本身可以是元素,也可以是包含一个或多个元素的集合。
本申请实施例中,“示例的”、“在一些实施例中”、“在另一实施例中”等用于表示作例子、例证或说明。本申请中被描述为“示例”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用示例的一词旨在以具体方式呈现概念。
本申请实施例中的“的(of)”、“相应的(corresponding,relevant)”和“对应的(corresponding)”有时可以混用,应当指出的是,在不强调其区别时,所要表达的含义是一致的。本申请实施例中,通信、传输有时可以混用,应当指出的是,在不强调其区别时,其所表达的含义是一致的。例如,传输可以包括发送和/或接收,可以为名词,也可以是动词。
本申请实施例中涉及的等于可以与大于连用,适用于大于时所采用的技术方案,也可以与小于连用,适用于小于时所采用的技术方案。需要说明的是,当等于与大于 连用时,不能与小于连用;当等于与小于连用时,不与大于连用。
首先对本申请实施例中涉及的部分名词进行解释说明,以便于本领域技术人员的理解。
1、终端设备。本申请实施例中终端设备是一种具有无线收发功能的设备,可以称之为终端(terminal)、用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)、接入终端设备、车载终端设备、工业控制终端设备、UE单元、UE站、移动站、远方站、远程终端设备、移动设备、UE终端设备、无线通信设备、UE代理或UE装置等。终端设备可以是固定的或者移动的。需要说明的是,终端设备可以支持至少一种无线通信技术,例如长期演进(long term evolution,LTE)、新空口(new radio,NR)等。例如,终端设备可以是手机(mobile phone)、平板电脑(pad)、台式机、笔记本电脑、一体机、车载终端、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、可穿戴设备、未来移动通信网络中的终端设备或者未来演进的公共移动陆地网络(public land mobile network,PLMN)中的终端设备等。在本申请的一些实施例中,终端设备还可以是具有收发功能的装置,例如芯片系统。其中,芯片系统可以包括芯片,还可以包括其它分立器件。
2、网络设备。本申请实施例中网络设备是一种为终端设备提供无线通信功能的设备,也可称之为接入网设备、无线接入网(radio access network,RAN)设备等。其中,网络设备可以支持至少一种无线通信技术,例如LTE、NR等。示例的,网络设备包括但不限于:第五代移动通信系统(5th-generation,5G)中的下一代基站(generation nodeB,gNB)、演进型节点B(evolved node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved node B、或home node B,HNB)、基带单元(baseband unit,BBU)、收发点(transmitting and receiving point,TRP)、发射点(transmitting point,TP)、移动交换中心等。网络设备还可以是云无线接入网络(cloud radio access network,CRAN)场景下的无线控制器、集中单元(centralized unit,CU)、和/或分布单元(distributed unit,DU),或者网络设备可以为中继站、接入点、车载设备、终端设备、可穿戴设备以及未来移动通信中的网络设备或者未来演进的PLMN中的网络设备等。在一些实施例中,网络设备还可以为具有为终端设备提供无线通信功能的装置,例如芯片系统。示例的,芯片系统可以包括芯片,还可以包括其它分立器件。
3、上行信息。本申请实施例中的上行信息又可以称之为上行信号。示例的,上行信息可以包括上行控制信息(uplink control information,UCI)和/或上行数据。上行 控制信息用于承载终端设备反馈的相关信息,例如信道状态信息(channel state information,CSI)、调度请求(scheduling request,SR)、前导码(preamble)、确认应答(acknowledgement,ACK)/否认应答(negative acknowledge,NACK)等。具体的,上行控制信息可以承载在物理上行控制信道(physical uplink control channel,PUCCH)或者物理上行共享信道(physical uplink shared channel,PUSCH)上。上行数据可以包括与业务相关的数据,具体的,上行数据可以承载在PUSCH上。例如,以XR业务为例,上行数据可以是与用户行为相关的数据。
4、下行信息。本申请实施例中的下行信息又可以称之为下行信号。示例的,下行信息可以包括下行控制信息(downlink control information,DCI)和/或下行数据(downlink data)。下行控制信息是用于下行数据调度的相关信息,例如,数据信道的资源分配、调制编码方式等信息。具体的,下行控制信息可以承载在物理下行控制信道(physical downlink control channel,PDCCH)上,下行数据可以承载在物理下行共享信道(physical downlink shared channel,PDSCH)上。下行数据可以包括与业务相关的数据。例如,以扩展现实(Extended Reality,XR)业务为例,下行数据可以是XR业务的视频帧。
5、数据传输时间窗。本申请实施例中对于终端设备来说,数据传输时间窗用于下行信息的接收;对于网络设备来说,用于下行信息的发送。其中,在本申请实施例中数据传输时间窗是周期出现的。例如,数据传输时间窗可以理解为非连续接收(Discontinious Reception,DRX)周期中的激活期。在这种情况下,数据传输时间窗的周期与激活期的周期相同。
其中,DRX周期按终端设备的行为可以划分为激活期和休眠期,DRX周期内的激活期可以简称为DRX激活期,DRX周期内的睡眠期可以简称为DRX睡眠期,在该DRX激活期内,网络设备可以向终端设备发送下行信息,终端设备可以接收网络设备发送的下行信息;在DRX睡眠期内,网络设备不向终端设备发送下行信息,终端设备可以处于睡眠状态,也就是不接收网络设备的下行信息,由此可以节省终端设备的功耗。
可以理解的是,终端设备可以在DRX激活期内周期性的接收网络设备发送的下行信息。例如,以XR业务为例,XR业务的下行视频数据是周期生成的,通常1秒会生成60帧下行视频数据,也就是说,每16.67ms生成一帧下行视频数据。网络设备可以在一个DRX周期内发送一帧下行视频数据,也就是说,DRX周期可以为一帧下行视频数据的周期,例如,16.67ms。如图1a和1b所示为XR业务中的DRX周期的示意图,其中,图1a所示的DRX周期中,DRX激活期在DRX睡眠期之前;图1b所示的DRX周期中,DRX激活期在DRX睡眠期之后。
6、ACK/NACK资源。本申请实施例中,对于终端设备来说,ACK/NACK资源用于HARQ信息的发送。对于网络设备来说,ACK/NACK资源用于HARQ信息的接收。例如,以某一视频数据的TB为例。对于终端设备来说,ACK/NACK资源用于该视频数据的TB的HARQ信息的发送。其中,HARQ信息用于指示该视频数据的TB的接收情况。比如,该视频数据的TB终端设备接收正确,则HARQ信息为ACK。再比如,该视频数据的TB终端设备接收错误,则HARQ信息为NACK。
7、SR资源。本申请实施例中,SR资源指的是用于发送SR的上行资源。例如,该SR资源可以是PUSCH资源。其中,SR指的是终端设备向网络设备发送的调度请求,该调度请求可以用于向网络设备请求用于发送上行信息的资源。可以理解的是,SR资源通常是周期性的,终端设备可以使用任意一个或多个SR资源向网络设备发送SR,例如,终端设备检测到有SR资源后,可以根据需求使用该SR资源向网络设备发送SR,例如,该需求可以是是否有待发上行信息。
8、PRACH资源。本申请实施例中,PRACH资源指的是发起随机接入的资源。例如,该PRACH资源可以包括前导码和随机接入时机(rach occasion,RO)。其中,RO可以是一个包含频域和时域的资源。
视频业务为一种下行传输具有周期性的XR业务。也就是说,对于视频业务来说,下行视频数据通常是周期性传输的。为了节省终端设备的功耗,终端设备通常都是在DRX机制下接收网络设备发送的下行视频数据。例如,终端设备可以在DRX周期的激活期内接收下行视频数据,而在DRX周期的睡眠期内停止接收下行视频数据。
然而,在XR业务进行过程中,通常也会伴随终端设备向网络设备发送上行数据,其中,该上行数据可以是与用户的行为相关的数据。可以理解的是,用户的行为通常是随机的,对于终端设备来说,无法对与用户行为相关的上行数据进行周期性传输,由此导致终端设备无法使用例如DRX周期等省电模式进行上行数据的发送。在这种情况下,为了发送与用户行为相关的上行数据,终端设备需要提前向网络设备请求用于发送与用户行为相关的上行数据的资源。因此,终端设备向网络设备请求该资源,会造成终端设备的额外耗电。由于终端设备通常是一个穿戴式设备,例如,XR设备。XR设备对功耗比较敏感,且在视频业务中需要消耗大量电能,因此,额外的耗电会给XR设备进一步造成负担,导致XR设备的续航能力变差。
鉴于上述问题,本申请实施例提出了一种通信方法,使得终端设备可以使用用于接收下行数据的数据传输时间窗内的资源向网络设备请求上行资源,从而有助于降低终端设备请求上行资源导致的额外耗电,进而有助于节省终端设备的功耗。
如图2所示,为本申请实施例的一种通信系统的网络架构图。该通信系统包括终端设备、网络设备和服务器。需要说明的是,服务器可以为本地服务器,又可以为云服务器。对于支持XR业务的服务器来说,服务器又可以称之为XR服务器。其中,以XR业务为视频业务为例。终端设备可以响应于用户行为(如用户的某一动作),通过网络设备将用户行为的相关信息发送给服务器。服务器可以根据用户行为的相关信息,将相关视频数据发送到网络设备,由网络设备将视频数据发送给终端设备。从而使得终端设备接收来自服务器的视频数据,以及响应于用户行为,根据接收到的视频数据显示相应视频画面。
图2仅为本申请实施例的通信系统的一个举例说明,本申请实施例并不限定。例如,本申请实施例的通信系统中可以包括多个网络设备,也可以包括多个终端设备等。
下面以图2所示的通信系统为例,对本申请实施例的通信方法进行介绍。
如图3所示,为本申请实施例提供的通信方法的流程示意图,具体包括以下步骤:
301、终端设备使用第一资源向网络设备请求第二资源。其中,第一资源位于数据传输时间窗内。数据传输时间窗用于下行信息的接收。第二资源用于上行信息的发送, 也就是说,第二资源为上行资源。
在一些实施例中,终端设备可以基于下列方式触发终端设备使用第一资源向网络设备请求第二资源:
方式1:终端设备确定有需要传输的上行信息,则使用第一资源向网络设备请求第二资源。示例的,以上行信息为XR业务数据为例。终端设备检测到用户行为,生成与用户行为相关的XR业务数据。在这种情况下,终端设备可以响应于用户行为,使用第一资源向网络设备请求第二资源;也可以在响应于用户行为,生成与用户行为相关的XR业务数据后,再使用第一资源向网络设备请求第二资源。例如,终端设备可以通过摄像头检测用户行为,也可以通过一个或多个传感器(如加速度传感器、陀螺仪等)检测用户行为,本申请实施例对终端设备检测用户行为的方式不作特殊限定。
方式2:终端设备确定用于发送上行信息所需的资源量超过实际可用的用于发送上行信息的资源量,则使用第一资源向网络设备请求第二资源。也就是说,若上行资源的实际需求量大于上行资源的实际可用量,则终端设备使用第一资源向网络设备请求第二资源。示例的,若终端设备有需要待发送的上行信息时,先判断实际可用的上行资源的资源量是否满足用于发送上行信息所需求的资源量,在不满足的情况下,则使用第一资源向网络设备请求第二资源。进一步的,在一些实施例中,终端设备使用第一资源向网络设备请求的第二资源的资源量可以为用于发送上行信息所需要的资源量与实际可用的用于发送上行信息的资源量之间的差值。在本申请的另一些实施例中,若用于发送上行信息所需的资源量未超过实际可用的用于发送上行信息的资源量,终端设备则无需向网络设备请求上行资源。
方式3:终端设备在无可用的用于上行信息传输的资源的情况下,则使用第一资源向网络设备请求第二资源。也就是说,终端设备确定无可用上行资源的情况下,使用第一资源向网络设备请求第二资源。在这种情况下,终端设备可以不用判断是否有待发送的上行信息。若没有待发送的上行信息,终端设备也无可用的上行资源,也可以触发终端设备使用第一资源向网络设备请求第二资源。
当然,本申请实施例也可以通过其它方式触发终端设备使用第一资源向网络设备请求第二资源,对此本申请实施例不做限定。
在本申请的另一些实施例中,终端设备可以先确定第一资源,然后再使用第一资源向网络设备请求第二资源。比如,终端设备确定无可用的上行资源,可以先确定第一资源,然后再使用第一资源向网络设备请求第二资源。
示例的,网络设备向终端设备发送资源请求配置信息,资源请求配置信息用于指示使用第一资源请求第二资源。在这种情况下,终端设备可以在接收到资源请求配置信息后,根据资源请求配置信息,确定第一资源。又示例的,使用第一资源请求第二资源可以为通过协议预定义的。在这种情况下,终端设备可以根据预定义配置,确定第一资源。
302、网络设备使用第一资源检测上行资源请求,即网络设备使用第一资源检测终端设备请求第二资源。
进一步的,在一些实施例中,网络设备使用第一资源检测到终端设备请求第二资源,向终端设备发送资源配置信息,该资源配置信息用于指示第二资源。对应的,终 端设备接收来自网络设备的资源配置信息。从而使得终端设备可以在接收到资源配置信息,在第二资源上发送上行信息。
需要说明的是,由于DRX周期通常不为时隙的整数倍,因此,DRX周期的时域位置与下行信息的到达时刻无法对齐,由此会导致终端设备无法有效的在DRX周期的数据传输时间窗内接收网络设备发送的下行信息。以XR业务及5G网络为例,DRX周期可以是一帧下行视频数据的周期,例如16.67ms,而5G网络中的时隙的时间长度为0.5ms,也就是说,DRX周期不是时隙的整数倍。因此,网络设备可以向终端设备发送位置调整指示信息,用于调整DRX周期的时域位置,使DRX周期的数据传输时间窗的起始时刻的时域位置与下行视频数据的到达时刻的时域位置对齐或保持一致,有助于提高终端设备在数据传输时间窗内对下行视频数据的接收效率。在具体实现时,调整DRX周期的时域位置的方式包括通过以下方式一或方式二实现:
方式一:若网络设备检测到下行视频数据到达的时刻与DRX周期的数据传输时间窗的起始时刻的偏差超过阈值,则通知终端设备调整DRX周期的起始时刻的时域位置。其中,调整的DRX周期的起始时刻的时域位置可以根据下行视频数据到达的时刻与DRX周期的数据传输时间窗的起始时刻的差值确定。
方式二:网络设备可以为终端设备配置一个DRX周期的漂移速度,示例性的,该漂移速度可以用于指示终端设备将DR周期的时域位置每秒向前或向后调整Xms,其中,X为该漂移速度的值。由此可以使得终端设备按照该漂移速度自行调整DRX周期的时域位置。其中,漂移速度可以根据下行视频数据到达的时刻与DRX周期的数据传输时间窗的起始时刻的差值确定。
在本申请实施例中,第一资源可以包括ACK/NACK资源、SR资源和/或PRACH资源中的一个或多个。
实施例一:利用位于数据传输时间窗内的ACK/NACK资源请求上行资源。
如图4所示,为本申请实施例的一种通信方法的流程示意图,具体包括以下步骤:
41、终端设备在第N个DRX睡眠期内检测到有需要传输的上行信息,N为正整数。其中,对于一个DRX周期来说,睡眠期位于激活期之后,如图1a所示。
42、终端设备判断实际可用的用于发送上行信息的资源量是否满足用于发送上行信息所需的资源量,若是,则执行45,否则执行43。
43、终端设备使用位于第N+1个DRX周期内的数据传输时间窗中的ACK/NACK资源,向网络设备请求上行资源。对应的,网络设备在位于第N+1个DRX周期内的数据传输时间窗中的ACK/NACK资源上检测终端设备请求上行资源。
示例的,终端设备使用数据传输时间窗中第K个TB的ACK/NACK资源,请求上行资源。例如K的取值为1,可以通过协议预定义的,也可以是由网络设备指示的。例如网络设备向终端设备发送第一指示信息,第一指示信息用于指示K。需要说明的是,第K个TB指的是数据传输时间窗内接收的第K个TB。或者,终端设备使用数据传输时间窗中的两个或两个以上的TB的ACK/NACK资源,请求上行资源,具体是几个TB或哪几个TB的ACK/NACK资源可以是通过协议预定义,也可以是由网络设备指示给终端设备的,对此不做限定。
例如,如图5所示,终端设备在第N个DRX周期内检测到有需要传输的上行信 息,终端设备判断实际可用的用于发送上行信息的资源量不满足用于发送上行信息所需的资源量,由此触发终端设备请求第二资源。接着,网络设备在第N+1个DRX周期内的数据传输时间窗中向终端设备发送下行信息。可以理解的是,网络设备向终端设备发送下行信息的方式是通过TB发送,因此,终端设备接收到数据传输时间窗中的第K个TB后,可以使用数据传输时间窗中的第K个TB的ACK/NACK资源向网络设备发送HARQ信息,由此可以使得终端设备使用位于第N+1个DRX周期内的数据传输时间窗中的第K个TB的ACK/NACK资源,向网络设备请求上行资源。
在本申请实施例中,终端设备可以使用位于数据传输时间窗中的ACK/NACK资源隐式或显式向网络设备请求上行资源。
以终端设备使用数据传输时间窗中第K个TB的ACK/NACK资源隐式向网络设备请求上行资源为例。例如,第K个TB的ACK/NACK资源包括第一子资源和第二子资源。终端设备使用第一子资源向网络设备发送第K个TB的HARQ信息,在这种情况下,终端设备请求上行资源。也就是说,终端设备若需要请求上行资源,如终端设备有需要传输的上行信息,则使用第一子资源发送第K个TB的HARQ信息。对于网络设备来说,网络设备若在第一子资源上接收到第K个TB的HARQ信息,则确定检测到终端设备请求上行资源。或者,终端设备使用第二子资源向网络设备发送第K个TB的HARQ信息,在这种情况下,终端设备不请求上行资源。也就是说,终端设备若无需请求上行资源,则使用第二子资源发送第K个TB的HARQ信息。对于网络设备来说,网络设备若在第二子资源上接收到第K个TB的HARQ信息,则确定未检测到终端设备请求上行资源。
示例的,终端设备使用位于数据传输时间窗内的ACK/NACK资源显式向网络设备请求上行资源可以通过下述方式实现:
终端设备在位于数据传输时间窗内的ACK/NACK资源上,向网络设备发送资源请求消息,该资源请求消息用于请求上行资源。
44、网络设备向终端设备发送资源配置信息,对应的,终端设备接收网络设备的资源配置信息,资源配置信息用于指示上行资源。
45、终端设备向网络设备发送上行信息,对应的,网络设备接收终端设备发送的上行信息。
进一步的,在一些实施例中,终端设备若M次使用位于数据传输时间窗的ACK/NACK资源,仍未接收到来自网络设备的资源配置信息,则向网络设备发送随机接入请求消息,以发起随机接入,通过随机接入过程请求上行资源。例如,随机接入请求消息用于请求上行资源。
其中,M为正整数,M可以是网络设备指示给终端设备的,也可以是通过协议预定义的,还可以是终端设备基于某一策略确定的,对此不做限定。需要说明的是,每次请求上行资源使用的ACK/NACK资源可以位于同一数据传输时间窗内,也可以位于不同的数据传输时间窗内,或者部分位于同一数据传输时间窗内,部分不位于同一数据传输时间窗内,对此不做限定。
此外,在一些实施例中,网络设备向终端设备发送资源请求配置信息,该资源请求配置信息用于指示使用ACK/NACK资源请求上行资源。或者,使用ACK/NACK资 源请求上行资源可以是通过协议预定义的。
需要说明的是,对于一个DRX周期来说,如果睡眠期位于激活期之前,如图1b所示,则终端设备若在第N个DRX睡眠期检测到有需要传输的上行信息,且实际可用的用于发送上行信息的资源量不满足用于发送上行信息所需的资源量,则终端设备可以使用第N个DRX激活期内的ACK/NACK资源,向网络设备请求上行资源。即终端设备可以使用第N个DRX周期内的数据传输时间窗中的ACK/NACK资源,向网络设备请求上行资源。
或者,如果睡眠期位于激活期之前,则终端设备若在第N个DRX睡眠期检测到有需要传输的上行信息,且实际可用的用于发送上行信息的资源量不满足用于发送上行信息所需的资源量,则终端设备可以使用第N+1个DRX激活期内的ACK/NACK资源,向网络设备请求上行资源。即终端设备可以使用第N+1个DRX周期内的数据传输时间窗中的ACK/NACK资源,向网络设备请求上行资源。
实施例二:利用位于数据传输时间窗内的SR资源和/或PRACH资源请求上行资源。
如图6所示,为本申请实施例的一种通信方法的流程示意图,具体包括以下步骤:
61、终端设备在第N个DRX睡眠期内检测到有需要传输的上行信息,N为正整数。其中,对于一个DRX周期来说,睡眠期位于激活期之后,如图1a所示。
62、终端设备判断实际可用的用于发送上行信息的资源量是否满足用于发送上行信息所需的资源量,若是,则执行65,否则执行63。
63、终端设备使用位于第N+1个DRX周期内的数据传输时间窗中的SR资源和/或PRACH资源,向网络设备请求上行资源。对应的,网络设备在位于第N+1个DRX周期内的数据传输时间窗中的SR资源和/或PRACH资源上检测终端设备请求上行资源。
示例的,终端设备使用数据传输时间窗中第L个SR资源和/或PRACH资源,请求上行资源。例如L的取值为1,可以通过协议预定义的,也可以是由网络设备指示的。例如网络设备向终端设备发送第二指示信息,第二指示信息用于指示L。需要说明的是,第L个SR资源和/或PRACH资源指的是数据传输时间窗内的第L个SR资源和/或PRACH资源。
或者,终端设备使用数据传输时间窗中的两个或两个以上的SR资源和/或PRACH资源,请求上行资源,具体是几个SR资源和/或PRACH资源可以是通过协议预定义,也可以是由网络设备指示给终端设备的,对此不做限定。
例如,如图7所示,以SR资源为例,终端设备在第N个DRX周期内检测到有需要传输的上行信息,终端设备判断实际可用的用于发送上行信息的资源量不满足用于发送上行信息所需的资源量,由此触发终端设备请求第二资源。接着,终端设备在第N+1个DRX周期内的数据传输时间窗中检测SR资源,其中,SR资源1、SR资源2、SR资源3和SR资源4为周期性SR资源,SR资源1和SR资源2位于第N个DRX周期,SR资源3和SR资源4位于第N+1个DRX周期。此时,终端设备可以使用位于第N+1个DRX周期内的数据传输时间窗中的SR资源,例如,SR资源3和/或SR资源4,向网络设备请求上行资源。
在本申请实施例中,终端设备可以基于SR资源和PRACH资源的优先级,使用位于数据传输时间窗中的SR资源和/或PRACH资源向网络设备请求上行资源。
例如,若数据传输时间窗中既包括SR资源,又包括PRACH资源,且SR资源的优先级高于PRACH资源的优先级,终端设备可以优先选择SR资源作为第一资源,向网络设备请求上行资源。其中,SR资源和PRACH资源的优先级可以由协议预定义,也可以是由网络设备指示给终端设备的,对此不做限定。
又例如,若数据传输时间窗中既包括SR资源,又包括PRACH资源,且SR资源的优先级低于PRACH资源的优先级,终端设备可以优先选择PRACH资源作为第一资源,向网络设备请求上行资源。其中,SR资源和PRACH资源的优先级可以由协议预定义,也可以是由网络设备指示给终端设备的,对此不做限定。
再例如,若数据传输时间窗中既包括SR资源,又包括PRACH资源,且SR资源的优先级与PRACH资源的优先级相同,终端设备可以同时选择SR资源和PRACH资源作为第一资源,向网络设备请求上行资源。其中,SR资源和PRACH资源的优先级可以由协议预定义,也可以是由网络设备指示给终端设备的,对此不做限定。
在本申请的一些实施例中,终端设备可以通过以下方式a或方式b,使用位于数据传输时间窗中的SR资源和/或PRACH资源向网络设备请求上行资源。
方式a:终端设备在位于数据传输时间窗内的SR资源和/或PRACH资源上,向网络设备发送资源请求消息,该资源请求消息用于请求上行资源。
在一些实施例中,网络设备可以给资源请求消息配置最大发送次数。可以理解的是,当前协议中已经给资源请求消息配置了最大发送次数。由于当前协议中,发送资源请求消息所使用的SR资源和/或PRACH资源可以是位于整个DRX周期内的,因此,当前协议配置的最大发送次数较大。而本申请实施例中,发送资源请求消息所使用的SR资源和/或PRACH资源是位于数据传输时间窗内的,也就是说,由于本申请实施例中不使用位于数据传输时间窗外的SR资源和/或PRACH资源,导致发送资源请求消息所使用的SR资源和/或PRACH资源少于当前协议规定的SR资源和/或PRACH资源,因此,本申请实施例中网络设备配置的资源请求消息的最大发送次数可以小于当前协议规定的资源请求消息的最大发送次数。
方式b:终端设备在位于数据传输时间窗内的PRACH资源上,向网络设备发送前导码,该前导码用于请求上行资源。
64、网络设备向终端设备发送资源配置信息,对应的,终端设备接收网络设备的资源配置信息,资源配置信息用于指示上行资源。
65、终端设备向网络设备发送上行信息,对应的,网络设备接收终端设备发送的上行信息。
进一步的,在一些实施例中,终端设备若S次使用位于数据传输时间窗内的SR资源和/或PRACH资源,仍未接收到来自网络设备的资源配置信息,则可以使用DRX周期内的任意SR资源和/或PRACH资源,向网络设备请求第二资源。可以理解的是,DRX周期内的任意SR资源和/或PRACH资源可以包括位于数据传输时间窗内的SR资源和/或PRACH资源,也可以包括位于数据传输时间窗外的SR资源和/或PRACH资源。
其中,S为正整数,S可以是网络设备指示给终端设备的,也可以是通过协议预定义的,还可以是终端设备基于某一策略确定的,对此不做限定。
在本申请的另一些实施例中,由于不是每个DRX周期内的数据传输时间窗内都包含SR资源和/或PRACH资源。因此,终端设备可以选取一个时间段内的SR资源和/或PRACH资源,有助于终端设备有效确定SR资源和/或PRACH资源。其中,该时间段的时长大于数据传输时间窗的时长,且该时间段的起始时刻为终端设备有需要请求第二资源的时刻。
示例的,以SR资源为例,结合图8对第一资源的确定方式进行说明。可以理解的是,在这种情况下,网络设备给终端设备配置了周期性的SR资源,终端设备可以基于第一时间段内的SR资源确定第一资源。其中,第一时间段为检测SR资源的时间段。第一时间段的时长大于数据传输时间窗的时长,且第一时间段的起始时刻为终端设备有需要请求第二资源的时刻。第一时间段的时长值可以由协议预定义,也可以是由网络设备指示给终端设备的,对此不做限定。
如图8所示,为本申请实施例的一种第一资源的确定方法的流程示意图,具体包括以下步骤:
81、终端设备在第N个数据传输时间窗检测到有需要请求第二资源,启动第一时间段的计时。
82、终端设备判断第一时间段内第N+1个数据传输时间窗内是否有SR资源。若是,则执行83,否则执行84。
83、终端设备确定第N+1个数据传输时间窗内的SR资源为第一资源。
84、终端设备判断第一时间段内的所有数据传输时间窗是否有SR资源。若是,则执行85,否则执行86。
85、终端设备确定第一时间段内的数据传输时间窗内的SR资源作为第一资源。
86、终端设备确定距离有需要请求第二资源的时刻最近的SR资源为第一资源。可以理解的是,该距离有需要请求第二资源的时刻最近的SR资源可以为位于数据传输时间窗内的SR资源,也可以为位于数据传输时间窗外的SR资源,本申请实施例对此不作特殊限定。
可以理解的是,终端设备基于时间段内的PRACH资源确定第一资源的方式具体可以参考上述终端设备基于时间段内的SR资源确定第一资源的方式,在此不再赘述。
需要说明的是,终端设备基于时间段内的PRACH资源确定第一资源的方式和终端设备基于时间段内的SR资源确定第一资源的方式可以同时使用,例如,在网络设备给终端设备同时配置了周期性的SR资源和PRACH资源的情况下,终端设备可以基于第一时间段内的SR资源和PRACH资源确定第一资源。
或者,终端设备基于时间段内的PRACH资源确定第一资源的方式和终端设备基于时间段内的SR资源确定第一资源的方式可以分开使用,例如,在网络设备给终端设备仅配置了周期性的SR资源的情况下,终端设备可以基于第一时间段内的SR资源确定第一资源;在网络设备给终端设备未配置周期性的SR资源,但配置了周期性的PRACH资源的情况下,终端设备可以基于第一时间段内的PRACH资源确定第一资源。
在本申请的再一些实施例中,终端设备在首次使用数据传输时间窗内的SR资源 请求第二资源,且没有收到网络设备发送的资源配置信息后,终端设备再次向再次设备请求第二资源所使用的SR资源也位于数据传输时间窗内;
或者,终端设备在首次使用数据传输时间窗内的PRACH资源请求第二资源,且没有收到网络设备发送的资源配置信息后,终端设备再次向再次设备请求第二资源所使用的PRACH资源也位于数据传输时间窗内。
在本申请的再一些实施例中,终端设备可以先启动一个定时器,在定时器的有效时间范围内均使用数据传输时间窗内的SR资源请求第二资源,在定时器计时结束后,可以采用任一时间段内的SR资源向网络设备请求第二资源。其中,定时器可以在终端设备确定有上行信息需要传输时启动,定时器的时长值可以由协议预定义,也可以是由网络设备指示给终端设备的,对此不做限定。
或者,终端设备可以先启动一个定时器,在定时器的有效时间范围内均使用数据传输时间窗内的PRACH资源请求第二资源,在定时器计时结束后,可以采用任一时间段内的PRACH资源向网络设备请求第二资源。
示例的,以SR资源为例,终端设备在确定有上行信息需要传输时启动第一定时器,其中,第一时间段的时长值可以由协议预定义,也可以是由网络设备指示给终端设备的,对此不做限定。若第一定时器计时未结束,且终端设备在使用数据传输时间窗内的SR资源请求第二资源,未收到网络设备发送的用于指示第二资源的资源配置信息,终端设备可以继续使用数据传输时间窗内的SR资源请求第二资源。若第一定时器计时结束,终端设备仍未接收到网络设备发送的用于指示第二资源的资源配置信息,则可以采用任一时间段内的SR资源向网络设备请求第二资源。
可以理解的是,终端设备基于定时器的PRACH资源确定第一资源的方式具体可以参考上述终端设备基于定时器的SR资源确定第一资源的方式,在此不再赘述。
此外,在一些实施例中,网络设备向终端设备发送资源请求配置信息,该资源请求配置信息用于指示使用SR资源和/或PRACH资源请求上行资源。或者,使用SR资源和/或PRACH资源请求上行资源可以是通过协议预定义的。
需要说明的是,对于一个DRX周期来说,如果睡眠期位于激活期之前,如图1b所示,则终端设备若在第N个DRX睡眠期检测到有需要传输的上行信息,且实际可用的用于发送上行信息的资源量不满足用于发送上行信息所需的资源量,则终端设备可以使用第N个DRX激活期内的SR资源和/或PRACH资源,向网络设备请求上行资源。即终端设备可以使用第N个DRX周期内的数据传输时间窗中的SR资源和/或PRACH资源,向网络设备请求上行资源。
或者,如果睡眠期位于激活期之前,则终端设备若在第N个DRX睡眠期检测到有需要传输的上行信息,且实际可用的用于发送上行信息的资源量不满足用于发送上行信息所需的资源量,则终端设备可以使用第N+1个DRX激活期内的SR资源和/或PRACH资源,向网络设备请求上行资源。即终端设备可以使用第N+1个DRX周期内的数据传输时间窗中的SR资源和/或PRACH资源,向网络设备请求上行资源。
本申请实施例中,通过确定位于数据传输时间窗内的第一资源,并利用位于数据传输时间窗内的第一资源请求上行资源,从而有助于降低终端设备请求上行资源导致的额外耗电,进而有助于节省终端设备的功耗。
以上各个实施例可以单独使用,也可以相互结合使用以达到不同的技术效果。
上述本申请提供的实施例中,从网络设备和终端设备作为执行主体的角度对本申请实施例提供的通信方法进行了介绍。为了实现上述本申请实施例提供的通信方法中的各功能,终端设备和网络设备可以包括硬件结构和/或软件模块,以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行,取决于技术方案的特定应用和设计约束条件。
图9为本申请实施例提供的一种通信装置90的结构示意图,可以包括:确定模块91和请求模块92;其中,
确定模块91,用于终端设备确定第一资源,第一资源位于数据传输时间窗内,数据传输时间窗用于下行信息的接收;
请求模块92,用于终端设备使用第一资源向网络设备请求第二资源,第二资源用于上行信息的发送。
在一种可能的实现方式中,上述确定模块91还用于终端设备确定用于发送上行信息所需的资源量超过实际可用的用于发送上行信息的资源量。
在一种可能的实现方式中,上述确定模块91还用于终端设备确定有需要传输的上行信息。
在一种可能的实现方式中,上述确定模块91还用于终端设备确定无可用的用于上行信息传输的资源。
在一种可能的实现方式中,第一资源位于第N个数据传输时间窗内,第N个数据传输时间窗用于第K个传输块TB的接收,第一资源用于第K个TB的混合自动重传请求HARQ信息的发送,N、K为正整数。
在一种可能的实现方式中,上述通信装置90还包括:
接收模块93,用于终端设备接收来自网络设备的第一指示信息,第一指示信息用于指示K。
在一种可能的实现方式中,第一资源包括第一子资源和第二子资源,第一子资源和第二子资源分别用于第K个TB的HARQ信息的发送。
在一种可能的实现方式中,上述请求模块92还用于终端设备使用第一子资源发送第K个TB的HARQ信息。
在一种可能的实现方式中,上述请求模块92还用于终端设备若无需请求第二资源,使用第二子资源发送第K个TB的HARQ信息。
在一种可能的实现方式中,上述请求模块92还用于终端设备在第一资源上,向网络设备发送资源请求消息,资源请求消息用于请求第二资源。
在一种可能的实现方式中,上述接收模块93还用于终端设备接收来自网络设备的上行资源请求配置信息,上行资源请求配置信息用于指示使用第一资源请求第二资源。
在一种可能的实现方式中,上述接收模块93还用于终端设备接收来自网络设备发送的资源配置信息,资源配置信息用于指示第二资源。
在一种可能的实现方式中,上述请求模块92还用于终端设备若使用M个第一资源请求第二资源,仍未接收到网络设备发送的资源配置信息,则向网络设备发送随机 接入请求,随机接入请求用于请求第二资源,M为正整数。
在一种可能的实现方式中,第一资源为调度请求SR资源和/或物理随机接入信道PRACH资源。
在一种可能的实现方式中,上述确定模块91还用于若数据传输时间窗内包括SR资源和PRACH资源,终端设备确定SR资源为第一资源;或者,
若数据传输时间窗内包括SR资源和PRACH资源,终端设备确定SR资源和PRACH资源为第一资源;或者,
若数据传输时间窗内包括SR资源和PRACH资源,终端设备根据网络设备的配置,从SR资源和PRACH资源中确定第一资源。
在一种可能的实现方式中,数据传输时间窗位于第一时间段内,第一时间段的时长大于数据传输时间窗的时长,且第一时间段的起始时刻为终端设备有需要请求第二资源的时刻。
在一种可能的实现方式中,上述确定模块91还用于若第一时间段内的数据传输时间窗内均无SR资源和/或第一时间段内的数据传输时间窗内均无PRACH资源,终端设备确定距离有需要请求第二资源的时刻最近的SR资源和/或PRACH资源为第一资源。
在一种可能的实现方式中,上述请求模块92还用于终端设备在第一定时器计时结束后,仍未接收到网络设备发送的用于指示第二资源的资源配置信息,则采用任一时间段内的SR资源和/或PRACH资源向网络设备请求第二资源,其中,第一定时器在终端设备确定有上行信息需要传输时启动。
在一种可能的实现方式中,该通信装置90可以为芯片或终端设备。
图10为本申请实施例提供的一种通信装置1000的结构示意图,可以包括:检测模块1010;其中,
检测模块1010,用于网络设备使用第一资源检测终端设备请求第二资源,第一资源位于数据传输时间窗内,数据传输时间窗用于下行信息的发送,第二资源用于上行信息的发送。
在一种可能的实现方式中,上述通信装置1000还包括:
发送模块1020,用于网络设备向终端设备发送上行资源请求配置信息;其中,上行资源请求配置信息用于指示使用第一资源请求第二资源。
在一种可能的实现方式中,第一资源位于第N个数据传输时间窗内,第N个数据传输时间窗用于第K个传输块TB的发送,第一资源用于第K个TB的混合自动重传请求HARQ信息的发送,N、K为正整数。
在一种可能的实现方式中,上述发送模块1020还用于网络设备向终端设备发送第一指示信息,第一指示信息用于指示K。
在一种可能的实现方式中,第一资源包括第一子资源和第二子资源,第一子资源和第二子资源分别用于第K个TB的HARQ信息的发送。
在一种可能的实现方式中,上述检测模块1010还用于网络设备在第一子资源上接收到第K个TB的HARQ信息,则确定检测到终端设备请求第二资源。
在一种可能的实现方式中,上述检测模块1010还用于网络设备在第二子资源上接 收到第K个TB的HARQ信息,则确定未检测到终端设备请求第二资源。
在一种可能的实现方式中,上述检测模块1010还用于网络设备在第一资源上接收来自终端设备的资源请求消息,资源请求消息用于请求第二资源。
在一种可能的实现方式中,上述发送模块1020还用于网络设备向终端设备发送资源配置信息,资源配置信息用于指示第二资源。
在一种可能的实现方式中,第一资源为SR资源和/或PRACH资源。
在一种可能的实现方式中,上述发送模块1020还用于网络设备向终端设备发送优先级指示信息,优先级指示信息指示使用SR资源和PRACH资源请求第二资源的优先级。
在一种可能的实现方式中,数据传输时间窗位于第一时间段内,第一时间段的时长大于数据传输时间窗的时长,且第一时间段的起始时刻为终端设备有需要请求第二资源的时刻。
在一种可能的实现方式中,上述发送模块1020还用于网络设备向终端设备发送窗口调整指示信息,窗口调整指示信息指示将非连续接收DRX窗口的起始时刻与下行信息的到达时刻对齐。
在一种可能的实现方式中,该通信装置1000可以为芯片或网络设备。
图11为本申请实施例提供的一种通信装置1100的结构示意图,上述通信装置1100可以包括:至少一个处理器;以及与上述处理器通信连接的至少一个存储器。上述通信装置1100可以为网络设备或终端设备。上述存储器存储有可被上述处理器执行的程序指令,若通信装置1100为网络设备,则处理器调用上述程序指令能够执行本申请实施例提供的通信方法中的网络设备执行的动作,若通信装置1100为终端设备,则处理器调用上述程序指令能够执行本申请实施例提供的通信方法中的终端设备执行的动作。
如图11所示,通信装置1100可以以通用计算设备的形式表现。通信装置1100的组件可以包括但不限于:一个或者多个处理器1110,存储器1120,连接不同系统组件(包括存储器1120和处理器1110)的通信总线1140及通信接口1130。
通信总线1140表示几类总线结构中的一种或多种,包括存储器总线或者存储器控制器,外围总线,图形加速端口,处理器或者使用多种总线结构中的任意总线结构的局域总线。举例来说,这些体系结构包括但不限于工业标准体系结构(Industry Standard Architecture,ISA)总线,微通道体系结构(Micro Channel Architecture,MAC)总线,增强型ISA总线、视频电子标准协会(Video Electronics Standards Association,VESA)局域总线以及外围组件互连(Peripheral Component Interconnection,PCI)总线。
通信装置1100典型地包括多种计算机系统可读介质。这些介质可以是任何能够被通信装置1100访问的可用介质,包括易失性和非易失性介质,可移动的和不可移动的介质。
存储器1120可以包括易失性存储器形式的计算机系统可读介质,例如随机存取存储器(Random Access Memory,RAM)和/或高速缓存存储器。通信装置1100可以进一步包括其它可移动/不可移动的、易失性/非易失性计算机系统存储介质。尽管图11中未示出,可以提供用于对可移动非易失性磁盘(例如“软盘”)读写的磁盘驱动器, 以及对可移动非易失性光盘(例如:光盘只读存储器(Compact Disc Read Only Memory,CD-ROM)、数字多功能只读光盘(Digital Video Disc Read Only Memory,DVD-ROM)或者其它光介质)读写的光盘驱动器。在这些情况下,每个驱动器可以通过一个或者多个数据介质接口与通信总线1140相连。存储器1120可以包括至少一个程序产品,该程序产品具有一组(例如至少一个)程序模块,这些程序模块被配置以执行本申请各实施例的功能。
具有一组(至少一个)程序模块的程序/实用工具,可以存储在存储器1120中,这样的程序模块包括但不限于操作系统、一个或者多个应用程序、其它程序模块以及程序数据,这些示例中的每一个或某种组合中可能包括网络环境的实现。程序模块通常执行本申请所描述的实施例中的功能和/或方法。
通信装置1100也可以与一个或多个外部设备(例如键盘、指向设备、显示器等)通信,还可与一个或者多个使得用户能与该通信装置1100交互的设备通信,和/或与使得该通信装置1100能与一个或多个其它计算设备进行通信的任何设备(例如网卡,调制解调器等等)通信。这种通信可以通过通信接口1130进行。并且,通信装置1100还可以通过网络适配器(图11中未示出)与一个或者多个网络(例如局域网(Local Area Network,LAN),广域网(Wide Area Network,WAN)和/或公共网络,例如因特网)通信,上述网络适配器可以通过通信总线1140与电子设备的其它模块通信。应当明白,尽管图11中未示出,可以结合通信装置1100使用其它硬件和/或软件模块,包括但不限于:微代码、设备驱动器、冗余处理单元、外部磁盘驱动阵列、磁盘阵列(Redundant Arrays of Independent Drives,RAID)系统、磁带驱动器以及数据备份存储系统等。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述描述的系统,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请实施例各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:快闪存储器、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何在本申请揭露的技术范围内的变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (38)

  1. 一种通信方法,其特征在于,所述方法包括:
    终端设备确定第一资源,所述第一资源位于数据传输时间窗内,所述数据传输时间窗用于下行信息的接收;
    所述终端设备使用所述第一资源向网络设备请求第二资源,所述第二资源用于上行信息的发送。
  2. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    所述终端设备确定用于发送上行信息所需的资源量超过实际可用的用于发送上行信息的资源量。
  3. 根据权利要求1或2所述的方法,其特征在于,所述方法还包括:
    所述终端设备确定有需要传输的上行信息。
  4. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    所述终端设备确定无可用的用于上行信息传输的资源。
  5. 根据权利要求1所述的方法,其特征在于,所述第一资源位于数据传输时间窗内,所述数据传输时间窗用于下行信息的接收,包括:
    所述第一资源位于第N个数据传输时间窗内,所述第N个数据传输时间窗用于第K个传输块TB的接收,所述第一资源用于所述第K个TB的混合自动重传请求HARQ信息的发送,所述N、K为正整数。
  6. 根据权利要求5所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收来自所述网络设备的第一指示信息,所述第一指示信息用于指示所述K。
  7. 根据权利要求5所述的方法,其特征在于,所述第一资源包括第一子资源和第二子资源,所述第一子资源和所述第二子资源分别用于所述第K个TB的HARQ信息的发送。
  8. 根据权利要求7所述的方法,其特征在于,所述终端设备使用所述第一资源向网络设备请求第二资源,包括:
    所述终端设备使用所述第一子资源发送所述第K个TB的HARQ信息。
  9. 根据权利要求8所述的方法,其特征在于,所述方法还包括:
    所述终端设备若无需请求所述第二资源,使用所述第二子资源发送所述第K个TB的HARQ信息。
  10. 根据权利要求1所述的方法,其特征在于,所述终端设备使用所述第一资源向网络设备请求第二资源,包括:
    所述终端设备在所述第一资源上,向所述网络设备发送资源请求消息,所述资源请求消息用于请求所述第二资源。
  11. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收来自所述网络设备的上行资源请求配置信息,所述上行资源请求配置信息用于指示使用所述第一资源请求所述第二资源。
  12. 根据权利要求1-11任一所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收来自所述网络设备发送的资源配置信息,所述资源配置信息用 于指示所述第二资源。
  13. 根据权利要求12所述的方法,其特征在于,所述方法还包括:
    所述终端设备若使用M个所述第一资源请求所述第二资源,仍未接收到所述网络设备发送的资源配置信息,则向所述网络设备发送随机接入请求,所述随机接入请求用于请求所述第二资源,所述M为正整数。
  14. 根据权利要求1所述的方法,其特征在于,所述第一资源为调度请求SR资源和/或物理随机接入信道PRACH资源。
  15. 根据权利要求1或14所述的方法,其特征在于,所述终端设备确定第一资源,包括:
    若所述数据传输时间窗内包括SR资源和PRACH资源,所述终端设备确定所述SR资源为第一资源;或者,
    若所述数据传输时间窗内包括SR资源和PRACH资源,所述终端设备确定所述SR资源和所述PRACH资源为第一资源;或者,
    若所述数据传输时间窗内包括SR资源和PRACH资源,所述终端设备根据所述网络设备的配置,从所述SR资源和所述PRACH资源中确定第一资源。
  16. 根据权利要求1所述的方法,其特征在于,所述数据传输时间窗位于第一时间段内,所述第一时间段的时长大于所述数据传输时间窗的时长,且所述第一时间段的起始时刻为所述终端设备有需要请求所述第二资源的时刻。
  17. 根据权利要求16所述的方法,其特征在于,所述终端设备确定第一资源,包括:
    若所述第一时间段内的数据传输时间窗内均无SR资源和/或所述第一时间段内的数据传输时间窗内均无PRACH资源,所述终端设备确定距离所述有需要请求所述第二资源的时刻最近的SR资源和/或PRACH资源为所述第一资源。
  18. 根据权利要求14所述的方法,其特征在于,所述方法还包括:
    所述终端设备在第一定时器计时结束后,仍未接收到所述网络设备发送的用于指示所述第二资源的资源配置信息,则采用任一时间段内的SR资源和/或PRACH资源向所述网络设备请求所述第二资源,其中,所述第一定时器在所述终端设备确定有上行信息需要传输时启动。
  19. 一种通信方法,其特征在于,所述方法包括:
    网络设备使用第一资源检测终端设备请求第二资源,所述第一资源位于数据传输时间窗内,所述数据传输时间窗用于下行信息的发送,所述第二资源用于上行信息的发送。
  20. 根据权利要求19所述的方法,其特征在于,所述方法还包括:
    所述网络设备向终端设备发送上行资源请求配置信息;其中,所述上行资源请求配置信息用于指示使用所述第一资源请求所述第二资源。
  21. 根据权利要求19或20所述的方法,其特征在于,所述第一资源位于数据传输时间窗内,所述数据传输时间窗用于下行信息的发送,包括:
    所述第一资源位于第N个数据传输时间窗内,所述第N个数据传输时间窗用于第K个传输块TB的发送,所述第一资源用于第K个TB的混合自动重传请求HARQ信 息的发送,所述N、K为正整数。
  22. 根据权利要求21所述的方法,其特征在于,所述方法还包括:
    所述网络设备向所述终端设备发送第一指示信息,所述第一指示信息用于指示所述K。
  23. 根据权利要求19或20所述的方法,其特征在于,所述第一资源包括第一子资源和第二子资源,所述第一子资源和所述第二子资源分别用于所述第K个TB的HARQ信息的发送。
  24. 根据权利要求23所述的方法,其特征在于,所述方法还包括:
    所述网络设备在所述第一子资源上接收到所述第K个TB的HARQ信息,则确定检测到所述终端设备请求所述第二资源。
  25. 根据权利要求23或24所述的方法,其特征在于,所述方法还包括:
    所述网络设备在所述第二子资源上接收到所述第K个TB的HARQ信息,则确定未检测到所述终端设备请求所述第二资源。
  26. 根据权利要求19或20所述的方法,其特征在于,所述网络设备使用第一资源检测终端设备请求第二资源,包括:
    所述网络设备在所述第一资源上接收来自所述终端设备的资源请求消息,所述资源请求消息用于请求所述第二资源。
  27. 根据权利要求19-26中任一项所述的方法,其特征在于,所述方法还包括:
    所述网络设备向所述终端设备发送资源配置信息,所述资源配置信息用于指示所述第二资源。
  28. 根据权利要求19或20所述的方法,其特征在于,所述第一资源为SR资源和/或PRACH资源。
  29. 根据权利要求28所述的方法,其特征在于,所述方法还包括:
    所述网络设备向所述终端设备发送优先级指示信息,所述优先级指示信息指示使用SR资源和PRACH资源请求所述第二资源的优先级。
  30. 根据权利要求19或20所述的方法,其特征在于,所述数据传输时间窗位于第一时间段内,所述第一时间段的时长大于所述数据传输时间窗的时长,且所述第一时间段的起始时刻为所述终端设备有需要请求所述第二资源的时刻。
  31. 根据权利要求19所述的方法,其特征在于,所述方法还包括:
    所述网络设备向所述终端设备发送窗口调整指示信息,所述窗口调整指示信息指示将非连续接收DRX窗口的起始时刻与下行信息的到达时刻对齐。
  32. 一种通信装置,其特征在于,包括:处理器和存储器,所述存储器用于存储计算机程序;所述处理器用于运行所述计算机程序,执行如权利要求1-18任一所述的通信方法。
  33. 根据权利要求32所述的通信装置,其特征在于,所述通信装置为芯片,或者,所述通信装置为终端设备。
  34. 一种通信装置,其特征在于,包括:处理器和存储器,所述存储器用于存储计算机程序;所述处理器用于运行所述计算机程序,执行如权利要求19-31任一所述的通信方法。
  35. 根据权利要求34所述的通信装置,其特征在于,所述通信装置为芯片,或者,所述通信装置为网络设备。
  36. 一种通信装置,其特征在于,包括:一个或多个功能模块,所述一个或多个功能模块用于执行权利要求1-18任一所述的通信方法。
  37. 一种通信装置,其特征在于,包括:一个或多个功能模块,所述一个或多个功能模块用于执行权利要求19-31任一所述的通信方法。
  38. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有计算机程序,当所述计算机程序在计算机上运行时,执行如权利要求1-18任一所述的方法、或者如权利要求19-31任一所述的方法。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108811152A (zh) * 2017-05-05 2018-11-13 华为技术有限公司 资源申请方法及设备
CN110891311A (zh) * 2018-09-07 2020-03-17 华为技术有限公司 反馈信息传输的方法和通信装置
WO2020062105A1 (zh) * 2018-09-28 2020-04-02 华为技术有限公司 一种通信方法及装置
CN111787616A (zh) * 2019-04-04 2020-10-16 华为技术有限公司 一种上行信息传输方法及装置
WO2021046812A1 (zh) * 2019-09-12 2021-03-18 Oppo广东移动通信有限公司 无线通信方法、终端设备和网络设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108811152A (zh) * 2017-05-05 2018-11-13 华为技术有限公司 资源申请方法及设备
CN110891311A (zh) * 2018-09-07 2020-03-17 华为技术有限公司 反馈信息传输的方法和通信装置
WO2020062105A1 (zh) * 2018-09-28 2020-04-02 华为技术有限公司 一种通信方法及装置
CN111787616A (zh) * 2019-04-04 2020-10-16 华为技术有限公司 一种上行信息传输方法及装置
WO2021046812A1 (zh) * 2019-09-12 2021-03-18 Oppo广东移动通信有限公司 无线通信方法、终端设备和网络设备

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