WO2023207850A1 - Procédé de communication, et appareil de communication - Google Patents

Procédé de communication, et appareil de communication Download PDF

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Publication number
WO2023207850A1
WO2023207850A1 PCT/CN2023/090092 CN2023090092W WO2023207850A1 WO 2023207850 A1 WO2023207850 A1 WO 2023207850A1 CN 2023090092 W CN2023090092 W CN 2023090092W WO 2023207850 A1 WO2023207850 A1 WO 2023207850A1
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WIPO (PCT)
Prior art keywords
data frame
lch
data
information
bsr
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PCT/CN2023/090092
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English (en)
Chinese (zh)
Inventor
范强
王珏
唐小伟
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华为技术有限公司
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Publication of WO2023207850A1 publication Critical patent/WO2023207850A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present application relates to the field of communication technology, and in particular, to a communication method and communication device.
  • UE user equipment
  • BSR buffer status reporting
  • PDB packet delay budget
  • LCH logical channel
  • DRB data radio bearer
  • buffer status report buffer status report
  • This application provides a communication method and communication device, which can improve service transmission efficiency and help reduce transmission delay.
  • this application provides a communication method, which method is applied to a terminal device.
  • the method includes:
  • first indication information is sent to the access network device, where the first indication information is used to indicate the cache status in the first LCH.
  • the triggering the first process is triggering the first buffer status report BSR.
  • the first BSR is a regular BSR.
  • the first LCH when the first data frame is acquired on the first LCH, the first LCH also includes buffered data of the second data frame, and the second data frame is the The data frame before the first data frame.
  • the terminal device can still trigger the first process (i.e., the third data frame) in time. (one BSR), which can then notify the access network equipment to perform resource scheduling in a timely manner, which is beneficial to reducing transmission delay.
  • the first LCH when the first data frame is acquired on the first LCH, the first LCH does not have a corresponding triggered and uncancelled BSR.
  • the first process when the first data frame is acquired on the first LCH, the first process is triggered, including:
  • the first process is triggered.
  • the first process When the first data frame includes multiple data packets, by introducing a timer, the first process is not triggered immediately when the first data packet of the new data frame arrives, but is triggered again when the timer times out.
  • the process enables terminal devices to report more accurate data volumes.
  • the method further includes:
  • the first timer When the first timer has not expired and other data packets included in the first data frame except the first data packet are obtained, the first timer is restarted.
  • the first timer is restarted once, which can avoid the case where the arrival time interval of each data packet in the first data frame is too long.
  • the first process is triggered, resulting in an inaccurate data amount being reported.
  • triggering the first process includes:
  • the first process is triggered.
  • the first process when the first timer times out and the first LCH still contains cached data when it times out, the first process is triggered, which can avoid unnecessary triggering even though the data in the first LCH has been completely transmitted.
  • the first process That is to say, the first process is not triggered immediately when the first data packet of the new data frame arrives, but is triggered when the timer times out and there is still cached data in the first LCH. This can also be effectively avoided. Trigger unnecessary BSR.
  • the first process when the first data frame is acquired on the first LCH, the first process is triggered, including:
  • the first process is triggered;
  • the method also includes:
  • second indication information is sent to the access network device, where the second indication information is used to indicate the cache status in the first LCH.
  • the terminal device when the first data frame includes multiple data packets, when the first data packet of the first data frame arrives, the terminal device immediately triggers the first process, so that the first indication information can be sent in time, To notify the access network device that a new data frame has arrived, but the amount of data reported based on the triggering of the first process is not accurate enough. Therefore, starting the timer when the first data packet of the new data frame arrives, and triggering the second process again after the timer times out, can enable the terminal device to report more accurate size information of the new data frame.
  • the triggering the second process is triggering the second BSR.
  • the second indication information includes one or more of the following information:
  • the first indication information includes one or more of the following information:
  • the access network device can distinguish the size of the newly arrived data frame and the size of the old data frame to be transmitted, so that resources can be allocated in time to complete the old data Frame transmission, and reasonable allocation of resources to schedule newly arrived data frames, thereby effectively avoiding data frame timeouts.
  • the first indication information or the second indication information includes jitter information of the first data frame cached in the first LCH;
  • the jitter information is the deviation between the arrival time of the first data frame and the expected arrival time of the terminal device, or the jitter information is the difference between the arrival time of the first data frame and the first data frame. The deviation between the arrival times of the previous data frame.
  • the first indication information or the second indication information is a BSR media access control layer control element MAC CE.
  • the present application provides a communication device, which includes a module or unit for executing any one of the methods described in the first aspect.
  • the application provides a communication device, including a processor, a transceiver and a memory.
  • the processor, the transceiver and the memory are coupled.
  • a computer program is stored in the memory; the processor and the transceiver are used to call the computer program in the memory. , causing the communication device to perform the method described in any one of the first aspects.
  • the communication device may be a chip that implements the method in the first aspect or a device containing the chip.
  • the present application provides a communication device, including a processor and an interface circuit.
  • the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit them to the processor or send signals from the processor to the processor.
  • the processor is used to implement the method according to any one of the first aspects through logic circuits or executing code instructions.
  • the present application provides a computer-readable storage medium that stores computer programs or instructions.
  • the computer program or instructions are executed by a computer, the method as described in any one of the first aspects is implemented.
  • the present application provides a computer program product, which when a computer reads and executes the computer program product, causes the computer to perform any of the methods described in the first aspect.
  • Figure 1 is a schematic structural diagram of a 5G communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of the format of short truncated BSR MAC CE
  • Figure 3 is a schematic diagram of the format of long truncated BSR MAC CE
  • Figure 4 is a schematic flow chart of the communication method provided by the embodiment of the present application.
  • Figure 5a is a schematic diagram of the format design of a MAC CE provided by the embodiment of the present application.
  • Figure 5b is a schematic diagram of the format design of another MAC CE provided by the embodiment of the present application.
  • Figure 5c is a schematic diagram of the format design of another MAC CE provided by the embodiment of the present application.
  • Figure 5d is a schematic diagram of the format design of another MAC CE provided by the embodiment of the present application.
  • Figure 5e is a schematic diagram of the format design of another MAC CE provided by the embodiment of the present application.
  • FIG. 6 is another schematic flowchart of the communication method provided by the embodiment of the present application.
  • FIG. 7 is another schematic flowchart of the communication method provided by the embodiment of the present application.
  • Figure 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 9 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX global interoperability for microwave access
  • Figure 1 is a schematic structural diagram of a 5G communication system provided by an embodiment of the present application.
  • access network equipment and terminal equipment 1 to 6 form a communication system.
  • terminal equipment 1 to terminal equipment 6 can send uplink information to the access network equipment, and the access network equipment can also send downlink information to terminal equipment 1 to terminal equipment 6.
  • the terminal devices 4 to 6 may also form a communication system.
  • the access network device can send downlink information to terminal device 1, terminal device 2, terminal device 5, etc.; terminal device 5 can also send downlink information to terminal device 4, terminal device 6.
  • the terminal equipment 4 and the terminal equipment 6 can also send uplink information to the access network equipment through the terminal equipment 5.
  • the terminal device in the embodiment of the present application is a device with wireless transceiver function, wherein the terminal device can also be called user equipment (UE), access terminal (access terminal), terminal, user unit, user station, mobile station, mobile, remote station, remote terminal, mobile device, user terminal, wireless network device, user agent, or User devices, etc.
  • Terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons, satellites, etc.).
  • the terminal device may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a smart phone, a mobile phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) , which can be a handheld device with wireless communication capabilities, a computing device or other devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a drone device or a terminal in the Internet of Things, the Internet of Vehicles, fifth-generation mobile communications (fifth generation) generation, 5G) network and any form of terminals, relay user equipment in future networks, or terminals in the future evolved public land mobile communication network (public land mobile network, PLMN), etc., where the relay user equipment may be, for example 5G residential gateway (RG).
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the terminal device can be a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in driverless driving, a wireless terminal in telemedicine, a smart grid ( Wireless terminals in smart grid), wireless terminals in transportation security, smart Wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • VR virtual reality
  • AR augmented reality
  • wireless terminal in industrial control a wireless terminal in driverless driving
  • a wireless terminal in telemedicine a smart grid ( Wireless terminals in smart grid), wireless terminals in transportation security, smart Wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • smart grid Wireless terminals in smart grid
  • the access network equipment in the embodiment of this application may be a network equipment that communicates with terminal equipment.
  • the access network equipment includes, for example, but is not limited to: a new generation base station (generation node B, gNB) and an evolved node in the 5G communication system.
  • generation node B generation node B
  • gNB new generation base station
  • radio network controller radio network controller
  • node B node B (node B, NB)
  • base station controller base station controller
  • BSC base transceiver station
  • home base station ((home evolved nodeB, HeNB) or (home node B, HNB)
  • baseband unit (baseBand unit, BBU ), transmission and receiving point (TRP), transmitting point (TP), mobile switching center, etc.
  • the access network equipment can also be a base station in the 6G communication system, or an open base station (Open RAN) or a cloud base station (Cloud RAN), etc., which is not limited here.
  • XR refers to various types of combined real and virtual environments generated by computing technology and wearable devices, as well as the interaction between humans and machines, including the following typical forms: augmented reality (AR), mixed reality (mixed reality, MR) and virtual reality (virtual reality, VR).
  • AR augmented reality
  • MR mixed reality
  • VR virtual reality
  • XR is one of the 5G multimedia applications currently being considered in the industrial field.
  • the 3rd generation partnership project (3GPP) version 17 (Rel-17) has modeled and analyzed the business characteristics of XR. Usually, XR business will periodically generate data frames according to a certain frame rate. To facilitate understanding, the embodiments of this application mainly take the AR service as an example for schematic description.
  • the uplink AR service has the following main service characteristics:
  • the frame rate can be 60fps, that is, 60 frames of video images are generated per second, and one video frame appears approximately every 16.67ms.
  • the transmission rate is 20Mbps or 45Mbps, etc.
  • the frame rate can also be 120fps, which is 120 frames of video images per second, and one video frame appears approximately every 8.33ms.
  • fps represents the number of transmission frames per second (frames per second)
  • ms represents milliseconds (millisecond)
  • Mbps megabits per second (Million bits per second).
  • Jitter There is a certain delay in the encoding of data frames, which will cause jitter in the time when the data frames arrive at the air interface side. Usually jitter can be considered to obey the truncated Gaussian distribution, and the truncation range is roughly [-4, 4]ms.
  • Frame size fluctuation The size of the data frame is not fixed and usually follows a truncated Gaussian distribution.
  • the frame size fluctuates between 0.5*mean and 1.5*mean.
  • Kbytes means kilobytes.
  • the frame delay budget (packet delay budget, PDB) is greater than the data frame arrival period: the typical PDB of the uplink AR service is 30ms. Taking the frame rate of 60fps as an example, the data frame arrival period is 16.67ms, that is, the PDB of the service will be larger than the data frame. cycle.
  • BSR medium access control control element
  • the base station allocates corresponding uplink transmission resources to the UE based on the amount of data and service type to be sent by the UE, and notifies the UE to send the data on the allocated uplink transmission resources.
  • BSR is divided into three types, specifically:
  • regular BSR Regular BSR If the UE detects the arrival of data in a logical channel with a higher priority than the current logical channel, or the UE detects the arrival of new data when there is no data in the cache, or Retx_BSR_Timer If it times out and there is data stored in the cache, Regular BSR reporting will be triggered.
  • Periodic BSR Periodic BSR
  • Padding BSR If the UE needs to send a MAC PDU, in the uplink transmission resources, in addition to carrying the uplink data that needs to be sent, there are also padding bits (padding bits), then Padding BSR is triggered.
  • the UE also needs to use uplink transmission resources to send BSR MAC CE to the base station. If there is a BSR MAC CE that needs to be reported, but there are no uplink transmission resources at this time, a scheduling request (scheduling request, SR) will be triggered, requesting the base station to The BSR that needs to be sent allocates uplink transmission resources.
  • SR scheduling request
  • the specific process of the UE sending uplink data according to the uplink transmission resources allocated by the base station is as follows:
  • Step 11 UE sends SR to base station
  • Step 12 The base station allocates uplink transmission resources for transmitting BSR;
  • Step 13 The UE reports the current BSR to the base station according to the uplink transmission resources allocated by the base station in step 12;
  • Step 14 The base station allocates uplink transmission resources to the UE for transmitting uplink data according to the received BSR;
  • Step 15 The UE sends the uplink data that needs to be transmitted to the base station according to the uplink transmission resources allocated by the base station to the base station.
  • Each logical channel (LCH) of the UE can be assigned to a logical channel group (LCG).
  • LCG logical channel group
  • the maximum number of LCGs that can be configured in NR is 8.
  • the specific BSR MAC CE format is shown in Figure 2 and Figure 3 below (the specific UE chooses various BSR MAC CE formats to report, depending on the triggered BSR type, the number of LCGs to be transmitted, and available For the size of the remaining resources, etc., please refer to Chapter 5.4.5 of the 3GPP TS 38.321 protocol for details).
  • the short BSR or short truncated BSR MAC CE shown in Figure 2 contains a 3-bit LCG ID field and a 5-bit buffer size (Buffer Size) field.
  • the LCG ID indicates the LCG corresponding to the Buffer Size reported later.
  • the long BSR or long truncated BSR MAC CE shown in Figure 3 contains an 8-bit bitmap and 0 or more Buffer Size fields; for the long BSR MAC CE, the i-th bit LCG i in the bitmap Indicates whether LCG i has a corresponding Buffer Size field; for long truncated BSR MAC CE, the i-th bit LCG i in the bitmap indicates whether LCG i has data to be transmitted. At this time, there may not necessarily be a Buffer Size field corresponding to LCG i in the future. .
  • the UE can inform the network device (such as a base station, etc.) through the BSR how much uplink data needs to be sent in its buffer, so that the network device can decide how many uplink resources to allocate to the UE.
  • the network device such as a base station, etc.
  • the PDB is larger than the data frame arrival period. That is, when a new data frame arrives, there may be previous LCHs in the LCH corresponding to the DRB corresponding to the service. The data packet of a data frame has not yet been transmitted.
  • the network device cannot be allocated in time. Resource scheduling reduces service transmission efficiency and increases transmission delay.
  • this application proposes a communication method that can improve service transmission efficiency and help reduce transmission delay.
  • first data frame and the second data frame involved in the embodiment of this application are data frames of the same service.
  • Figure 4 is a schematic flow chart of a communication method provided by an embodiment of the present application. As shown in Figure 4, the communication method includes the following steps S401 to S402:
  • triggering the first process can be understood as triggering the first BSR.
  • the first BSR can be a regular BSR, etc., which is not limited here.
  • the first data frame in the embodiment of the present application includes at least one data packet.
  • the terminal device when the terminal device obtains the first data frame on the first LCH, it triggers the first process, which can be understood as: when the terminal device obtains the first data packet included in the first data frame on the first LCH, it triggers the first process.
  • a process Specifically including but not limited to any of the following implementation methods:
  • the terminal device when the terminal device obtains the first data frame on the first LCH, if the first LCH also includes buffered data of the second data frame, the terminal device triggers the first BSR.
  • the first data frame and the second data frame are data frames of the same service, and the second data frame is a data frame that arrives at the first LCH before the first data frame. That is to say, for the first LCH, when a new data frame (such as the first data frame) arrives, if there is still data to be transmitted (the second data frame) in the first LCH, the terminal device triggers the first BSR .
  • the services involved in the embodiments of this application may be XR services, such as AR services, etc., which are not limited here.
  • the data packet of the new data frame i.e., the first data frame
  • the data packet of the previous data frame i.e., the second data frame
  • the conditions that trigger regular BSR defined in the technology due to the adjustment of the trigger conditions, the UE can trigger and report the cache status of the terminal device in time in this case, and then notify the access network device to perform resource scheduling in a timely manner.
  • the terminal device when the terminal device obtains the first data frame on the first LCH, if the first LCH does not have a corresponding triggered and uncancelled BSR, the terminal device triggers the first BSR.
  • a possible understanding of the "triggered and not canceled BSR" described in the embodiments of this application is that the BSR has been triggered, but the BSRMAC CE has not yet been generated and sent to the access network device.
  • the "no corresponding triggered and uncancelled BSR" described in the embodiment of this application can be understood as: 1. The BSR has not been triggered; 2. The BSR has been triggered and the triggered BSR has generated and sent the BSRMAC CE To the access network equipment (that is, it has been packaged and sent).
  • the trigger conditions defined in the implementation method 2 here can be understood as: when a new data frame arrives, as long as there is no BSR that is currently triggered and has not yet been packaged, the BSR is triggered, so that the BSRMAC CE reports more information. timely.
  • the terminal device when the terminal device obtains the first data frame on the first LCH, if the first LCH also includes cached data of the second data frame, and the first LCH does not have a corresponding triggered and If the BSR is not canceled, the terminal device triggers the first BSR.
  • the trigger conditions defined in implementation method 3 are a summary of the trigger conditions defined in implementation methods 1 and 2. That is to say, the trigger conditions in implementation methods 1 and 2 need to be met at the same time to trigger. The first process. Based on this, for the understanding of each trigger condition in implementation method 3, you can refer to the descriptions in implementation methods 1 and 2, respectively, and will not be described again here.
  • the above three implementation methods of triggering the first process may be set for logical channels corresponding to specific services (such as but not limited to XR services), or for DRBs corresponding to specific services. If set, the DRB is associated with at least one logical channel.
  • the terminal device sends the first instruction information to the access network device.
  • the terminal device in response to the first process, sends a first indication to the access network device information.
  • the access network device receives the first indication information from the terminal device.
  • the first indication information is used to indicate the cache status in the first LCH.
  • the first indication information includes size information of all data cached in the first LCH, identification information of the first LCH, etc.
  • the first indication information may be a BSR MAC CE, for example, a short truncated BSR MAC CE.
  • the first indication information includes size information of the first data frame buffered in the first LCH.
  • the first indication information may also include one or more of the following information: size information of all data cached in the first LCH, size of data cached in the first LCH except the first data frame. Information, identification information of the first LCH, and jitter information of the first data frame buffered in the first LCH.
  • the first indication information may be a MAC CE, which is different from the BSR MAC CE.
  • Figure 5a is a schematic diagram of the format design of a MAC CE provided by an embodiment of the present application.
  • the first indication information may only include size information of the first data frame buffered in the first LCH.
  • Figure 5b is a schematic diagram of the format design of another MAC CE provided by an embodiment of the present application.
  • the first indication information may include size information of the first data frame buffered in the first LCH, and size information of data other than the first data frame buffered in the first LCH.
  • Figure 5c is a schematic diagram of the format design of another MAC CE provided by an embodiment of the present application.
  • the first indication information may include size information of all data buffered in the first LCH and size information of the first data frame buffered in the first LCH.
  • the size of the first data frame buffered in the first LCH can be expressed as a ratio, and the size of the first data frame buffered in the first LCH is determined by multiplying the ratio by the total amount of buffered data.
  • the first indication information may include size information of all data cached in the first LCH, and size information of data cached in the first LCH except the first data frame.
  • the size of the data cached in the first LCH other than the first data frame can be expressed as a ratio, and the data cached in the first LCH other than the first data frame is determined by multiplying the ratio by the total amount of cached data. the size of.
  • the first indication information may include size information of the first data frame buffered in the first LCH, identification information of the first LCH, jitter information of the first data frame buffered in the first LCH, etc.
  • the size information of the first data frame cached in the first LCH involved in the embodiment of the present application the size information of all data cached in the first LCH, or the size information of the first data frame cached in the first LCH except the first data frame Size information other than data, which can be a value in Bytes or Kbytes, or it can be an index value of the data size. Therefore, the index value is combined with the data size in Bytes/Kbytes.
  • the mapping table determines the size of the specific data frame.
  • the size information of the first data frame cached in the first LCH may be 7Kbytes, or the first data frame cached in the first LCH
  • the size information can be index value 1, where the data size corresponding to index value 1 is 7Kbytes.
  • the jitter information of the first data frame cached in the first LCH involved in the embodiment of the present application may be the deviation between the arrival time of the first data frame and the expected arrival time of the terminal device, or it may also be the difference between the arrival time of the first data frame and the expected arrival time of the terminal device. It may be the deviation between the arrival time of the first data frame and the arrival time of the previous data frame of the first data frame.
  • the above deviation can be expressed as a numerical value in the unit of symbol (symbol), time slot (slot), millisecond (ms) or wireless frame, etc., or it can also be a time index value, so the time index value is related to the specific value. time value The mapping relationship between them can determine the specific deviation size.
  • the jitter information of the first data frame is 1 slot.
  • the arrival time of the first data frame is slot7, and the arrival time of the previous data frame of the first data frame is slot1, then the jitter information of the first data frame is six slots.
  • the terminal device when a new data frame (for example, the first data frame) arrives in the first LCH, the terminal device triggers the first process according to different conditions, so that the terminal device can timely pass the first indication information.
  • FIG. 6 is another schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 6, the communication method includes the following steps S601 to S602:
  • the terminal device may start the first timer when acquiring the first data packet included in the first data frame on the first LCH. It should be noted that the first data frame involved in the embodiment of this application includes at least two data packets.
  • the first LCH may also include buffered data of the second data frame.
  • the first data frame and the second data frame are data frames of the same service, and the second data frame is a data frame that arrives at the first LCH before the first data frame.
  • the services involved in the embodiments of this application may be XR services, such as AR services, etc., which are not limited here.
  • the terminal device starts the first timer.
  • the first data packet of the new data frame i.e., the first data frame
  • the data of the previous data frame i.e., the second data frame
  • the data packet for the new data frame i.e., the first data frame
  • the previous data frame i.e., the second data frame
  • the description of the data packet will not be repeated here.
  • the difference from the implementation method 1 in step S402 of Figure 4 is that in this application, the first timer needs to be further started.
  • a data frame (such as the first data frame) can include multiple data packets, and there is a certain time interval between the arrival times of these data packets. If the first data packet of the first data frame arrives, the third data packet is triggered. In this process, the amount of data reported will not be the amount of data of the complete first data frame, but the amount of data of the partially arrived data packets in the first data frame. This will make the amount of reported data inaccurate. Therefore, through By starting the first timer and triggering the report when the first timer times out, the accurate amount of data can be reported.
  • the first LCH when the first data frame is acquired on the first LCH, the first LCH may not have a corresponding triggered and uncancelled BSR. That is to say, for the first LCH, when the first data packet included in the first data frame arrives, if the first LCH does not have a triggered and uncancelled BSR, the UE starts the first timer.
  • the first data packet of the new data frame i.e., the first data frame
  • the understanding that the first LCH does not have a triggered and uncancelled BSR can be seen in the implementation in step S402 of Figure 4 above.
  • the data packet of the new data frame that is, the first data frame
  • the description that the first LCH does not have a triggered and uncancelled BSR will not be described again.
  • the difference from the implementation method 2 in step S402 of Figure 4 is that this application Please further need to start the first timer. It should be noted that the reason for starting the first timer here refers to the relevant description of the above implementation method 1, and will not be described again here.
  • the first LCH when the first data frame is acquired on the first LCH, the first LCH may include buffered data of the second data frame, and the first LCH does not have a corresponding triggered and uncancelled BSR. . That is to say, for the first LCH, when the first data packet included in the first data frame arrives, if there is already data to be transmitted in the first LCH, and there is currently no triggered and uncancelled data on the first LCH, BSR, the UE starts the first timer.
  • the first timer after starting the first timer, if the first timer does not time out, all the data packets included in the first data frame except the first data packet are obtained in the first LCH. For other packets, the first timer can be restarted. Among them, restarting the first timer can be understood as reinitializing the first timer, or setting the first timer to 0. It should be noted that when each data packet in the first data frame is obtained, the first timer is restarted once, which can avoid the situation that the arrival time interval of each data packet in the first data frame is too long. When all the data packets included in the first data frame are not received, the first process is triggered, causing an inaccurate amount of data to be reported.
  • the terminal device triggers the first process.
  • triggering the first process can be understood as triggering the first BSR.
  • the first BSR involved in the embodiment of this application can be a regular BSR, etc., which is not limited here.
  • the terminal device sends the first instruction information to the access network device.
  • step S603 please refer to the description of step S402 in the corresponding embodiment of FIG. 4, which will not be described again here.
  • the first process when the first data frame includes multiple data packets, by introducing a timer, the first process is not triggered immediately when the first data packet of the new data frame arrives, but is triggered at the scheduled time. The first process is triggered again when the device times out, so that the terminal device can report a more accurate amount of data. In addition, the first process is not triggered immediately when the first data packet of the new data frame arrives, but is triggered when the timer times out and there is still buffered data in the first LCH. This can also be effective. Avoid triggering unnecessary BSR.
  • FIG. 7 is another schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 7, the communication method includes the following steps S701 to S702:
  • the first data frame includes multiple data packets.
  • the first data frame in the corresponding embodiment of Figure 4 includes one data packet. That is to say, obtaining the first data frame on the first LCH in Figure 4 is equivalent to obtaining the first data frame on the first LCH in step S701 here.
  • the terminal device In response to the first process, the terminal device sends the first instruction information to the access network device.
  • step S702 please refer to the description of step S402 in the corresponding embodiment of FIG. 4, which will not be described again here.
  • the terminal device obtains the first data packet included in the first data frame on the first LCH, the terminal device starts the second timer.
  • the terminal device when acquiring the first data packet included in the first data frame on the first LCH, may also start the second timer. That is to say, the terminal device can trigger the first process when acquiring the first data frame on the first LCH, and at the same time, start a second timer.
  • the terminal device can trigger the first process when acquiring the first data frame on the first LCH, and at the same time, start a second timer.
  • start a second timer it should be noted that for the implementation/understanding of starting the second timer, reference can be made to the implementation/understanding of starting the first timer in step S601 of FIG. 6 , which will not be described again here. That is to say, after replacing the first timer described in step S601 of FIG. 6 with a second timer, it can be understood as starting the second timer in step S702 here.
  • the terminal device triggers the second process.
  • triggering the second process can be understood as triggering the second BSR.
  • the second BSR can be a regular BSR, etc., which is not limited here.
  • the terminal device In response to the second process, the terminal device sends the second instruction information to the access network device.
  • the terminal device responds to the second process by sending second indication information to the access network device.
  • the second indication information is used to indicate the cache status in the first LCH.
  • first indication information is the cache status in the first LCH corresponding to the time when the first process is triggered.
  • second indication information here is the cache status in the first LCH corresponding to the time when the second process is triggered.
  • the terminal device when the first data frame includes multiple data packets, when the first data packet of the first data frame arrives, the terminal device immediately triggers the first process, so that the first indication information can be sent in time, To notify the access network device that a new data frame has arrived, but the amount of data reported based on the triggering of the first process is not accurate enough. Therefore, starting the timer when the first data packet of the new data frame arrives, and triggering the second process again after the timer times out, can enable the terminal device to report more accurate size information of the new data frame.
  • the communication device provided by the present application will be described in detail below with reference to FIGS. 8 to 9 .
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device shown in Figure 8 can be used to perform some or all functions of the terminal device in the method embodiments described in Figures 4 to 7 above.
  • the device may be a terminal device, a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 8 may include a transceiver unit 801 and a processing unit 802. Among them, the processing unit 802 is used for data processing.
  • the transceiver unit 801 integrates a receiving unit and a sending unit.
  • the transceiver unit 801 may also be called a communication unit. Alternatively, the transceiver unit 801 may also be split into a receiving unit and a transmitting unit.
  • the following processing unit 802 and transceiver unit 801 are the same, and will not be described again below. in:
  • the processing unit 802 is configured to trigger the first process when the first data frame is acquired on the first LCH;
  • the processing unit 802 is configured to respond to the first process and send first indication information to the access network device through the transceiver unit 801, where the first indication information is used to indicate the cache status in the first LCH.
  • FIG. 9 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • the communication device may be the terminal device described in the embodiment of the present application, and is used to implement the functions of the terminal device in the above-mentioned FIGS. 4 to 7 .
  • FIG. 9 shows only the main components of the terminal device 900.
  • the terminal device 900 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process communication protocols and communication data, control the entire terminal device 900, execute software programs, and process data of the software programs.
  • Memory is mainly used to store software programs and data.
  • the control circuit is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, microphones, keyboards, etc., are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent and outputs the baseband signal to the control circuit.
  • the control circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal out in the form of electromagnetic waves through the antenna.
  • the control circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor.
  • the processor converts the baseband signal into data and processes the data. .
  • terminal device 900 may include multiple processors and memories.
  • the memory may also be called a storage medium or a storage device, which is not limited in this embodiment of the present invention.
  • the processor may include a baseband processor and a central processor.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processor is mainly used to control the entire terminal device 900. Execute software programs and process data from software programs.
  • the processor in Figure 9 integrates the functions of a baseband processor and a central processor. Those skilled in the art can understand that the baseband processor and the central processor can also be independent processors and are interconnected through technologies such as a bus.
  • the terminal device 900 may include multiple baseband processors to adapt to different network standards, the terminal device 900 may include multiple central processors to enhance its processing capabilities, and various components of the terminal device 900 may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing communication protocols and communication data can be built into the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and the control circuit with the transceiver function can be regarded as the transceiver unit 910 of the terminal device 900
  • the processor with the processing function can be regarded as the processing unit 920 of the terminal device 900
  • the terminal device 900 includes a transceiver unit 910 and a processing unit 920.
  • the transceiver unit may also be called a transceiver, a transceiver, a transceiver device, etc.
  • the devices used to implement the receiving function in the transceiving unit 910 can be regarded as receiving units
  • the devices used in the transceiving unit 910 used to implement the transmitting function can be regarded as sending units.
  • the transceiving unit 910 includes a receiving unit and a transmitting unit.
  • the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, a transmitting circuit, etc.
  • Embodiments of the present application also provide a computer-readable storage medium. Instructions are stored in the computer-readable storage medium. When the instruction is run on a processor, the method flow of the above method embodiment is implemented.
  • An embodiment of the present application also provides a computer program product.
  • the computer program product is run on a processor, the method flow of the above method embodiment is implemented.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical functional division.
  • the units described as separate components may or may not be physically separated.
  • the components shown may or may not be physical units, that is, they may be located in one place, or they may be distributed over multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned computer-readable storage medium can be any available medium that can be accessed by a computer.
  • computer-readable media can include random access memory (random access memory, RAM), read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), Erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD- ROM), universal serial bus flash disk, portable hard disk, or other optical disk storage, magnetic disk storage media, or other magnetic storage devices, or can be used to carry or store desired data in the form of instructions or data structures. program code and any other medium that can be accessed by a computer.
  • RAM random access memory
  • read-only memory read-only memory
  • ROM programmable read-only memory
  • PROM programmable read-only memory
  • Erasable programmable read-only memory Erasable programmable read-only memory
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM, DR RAM

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

Abstract

Sont décrits dans la présente demande un procédé de communication et un appareil de communication. Le procédé consiste : lorsqu'une première trame de données a été acquise sur un premier LCH, à déclencher un premier processus ; et, en réponse au premier processus, à envoyer des premières informations d'indication à un dispositif de réseau d'accès, dans lequel les premières informations d'indication sont utilisées pour indiquer un état de tampon dans le premier LCH. Au moyen du procédé décrit dans la présente demande, une efficacité de transmission de service peut être améliorée et un délai de transmission peut être réduit.
PCT/CN2023/090092 2022-04-29 2023-04-23 Procédé de communication, et appareil de communication WO2023207850A1 (fr)

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