WO2021169965A1 - 缓存状态上报方法、中继终端设备及计算机可读存储介质 - Google Patents

缓存状态上报方法、中继终端设备及计算机可读存储介质 Download PDF

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Publication number
WO2021169965A1
WO2021169965A1 PCT/CN2021/077540 CN2021077540W WO2021169965A1 WO 2021169965 A1 WO2021169965 A1 WO 2021169965A1 CN 2021077540 W CN2021077540 W CN 2021077540W WO 2021169965 A1 WO2021169965 A1 WO 2021169965A1
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Prior art keywords
report
status report
lcg
target
buffer status
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PCT/CN2021/077540
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English (en)
French (fr)
Inventor
刘佳敏
杨晓东
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维沃移动通信有限公司
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Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to KR1020227029833A priority Critical patent/KR20220133974A/ko
Priority to JP2022550819A priority patent/JP7516534B2/ja
Priority to EP21760204.4A priority patent/EP4099754A4/en
Publication of WO2021169965A1 publication Critical patent/WO2021169965A1/zh
Priority to US17/893,259 priority patent/US20220408466A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0278Traffic management, e.g. flow control or congestion control using buffer status reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/10Flow control between communication endpoints
    • H04W28/14Flow control between communication endpoints using intermediate storage
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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
    • H04W72/566Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiment of the present invention relates to the field of communication technology, and in particular to a method for reporting a cache state, a relay terminal device, and a computer-readable storage medium.
  • Both the Long Term Evolution (LTE) system and the New Radio (NR) system can support sidelinks.
  • Sidelink can enable terminal devices to directly transmit data without using network devices, such as vehicle to everything (V2X) communication.
  • V2X vehicle to everything
  • the remote terminal device needs to buffer the data to be transmitted to the relay terminal device. After the data to be transmitted is buffered, the relay terminal device reports the buffered data information of the data to be transmitted to the network device, so that the network device allocates uplink resources for it, so that the relay terminal device reports the buffer status of the data to be transmitted.
  • the delay of data transmission is longer, which leads to a longer delay of data transmission, thereby reducing the efficiency of data transmission.
  • the embodiments of the present invention provide a method, equipment, and medium for reporting a buffer status, so as to solve the problem that the relay terminal equipment in the prior art has a long delay in reporting the buffer status of data to be transmitted, resulting in long data transmission delay and data transmission.
  • the present invention is implemented as follows:
  • an embodiment of the present invention provides a method for reporting a buffer status, which is applied to a relay terminal device, and includes:
  • the target cache status report is a pre-sent cache status report
  • an embodiment of the present invention provides a relay terminal device, including:
  • the information determining module is used to determine the data information of the data to be transmitted; wherein the data to be transmitted is the data that the remote terminal device is about to send to the network device through the relay terminal device;
  • the report generation module is used to generate a target cache status report according to the data information; among them, the target cache status report is a pre-sent cache status report;
  • the report reporting module is used to report the target cache status report to the network device.
  • an embodiment of the present invention provides a relay terminal device, including a processor, a memory, and a computer program stored in the memory and running on the processor.
  • the computer program is executed by the processor, the implementation is as in the first aspect. The steps of the method for reporting the cache status.
  • an embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored.
  • the steps of the method for reporting a cache status as described in the first aspect are implemented.
  • the relay terminal device can generate a pre-sent buffer status report based on the data information after determining that the remote terminal device is about to send the data information of the data to be transmitted to the network device through the relay terminal device, and send it to
  • the network device reports the pre-sent buffer status report to request the network device to pre-allocate uplink resources corresponding to the data to be transmitted for the relay terminal device according to the pre-sent buffer status report before receiving the data to be transmitted, so that the relay terminal device Before the remote terminal device buffers the data to be transmitted to the relay terminal device, it can complete the report of the buffer status of the data to be transmitted, which reduces the delay of the relay terminal device reporting the buffer status of the data to be transmitted, thereby reducing the data
  • the transmission delay improves the efficiency of data transmission.
  • Figure 1 is a system architecture diagram of a sidelink transmission system
  • FIG. 2 is a schematic flowchart of an embodiment of a method for reporting a cache status provided by the present invention
  • FIG. 3 is a schematic structural diagram of an example of a report format provided by an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of another example of a report format provided by an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another example of a report format provided by an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an embodiment of a relay terminal device provided by the present invention.
  • FIG. 7 is a schematic diagram of the hardware structure of an embodiment of the relay terminal device provided by the present invention.
  • Figure 1 shows a system architecture diagram of a sidelink transmission system.
  • the sidelink transmission system may be applied to an LTE system or an NR system.
  • the sidelink transmission system may include a base station 110, a relay user equipment (User Equipment, UE) 120, and at least one remote UE 130.
  • UE User Equipment
  • the remote UE 130 may be a device used by the user, including but not limited to a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, and a pedometer.
  • the relay UE 120 can respectively communicate with each remote UE 130 through a sidelink interface, and communicate with the base station 110 through a user-uplink (User-uplink, Uu) interface, and is used to communicate the remote UE 130 to it.
  • the transmitted data is forwarded to the base station 110.
  • the remote UE 130 needs to first buffer the data to be transmitted to the relay UE 120. After the data to be transmitted is buffered, the relay UE 120 then buffers the data to be transmitted. The completed data information of the data to be transmitted is reported to the base station 110, so that the base station 110 allocates uplink resources to the relay UE 120, so that the relay UE 120 has a longer time delay in reporting the buffer status of the data to be transmitted, which results in time for data transmission. The delay is longer, thereby reducing the efficiency of data transmission.
  • embodiments of the present invention provide a method for reporting a cache status, a relay terminal device, and a computer-readable storage medium.
  • the method for reporting the cache status provided by the embodiment of the present invention will be described in detail.
  • FIG. 2 shows a schematic flowchart of an embodiment of a method for reporting a cache status provided by the present invention.
  • the method shown in FIG. 2 may be executed by a relay terminal device, where the relay terminal device may be used to forward data sent by the remote terminal device to the network device.
  • the relay terminal device may be the relay UE 120 shown in FIG. 1
  • the remote terminal device may be the remote UE 130 shown in FIG. 1
  • the network device may be the base station 110 shown in FIG.
  • the method for reporting the cache status may include:
  • S210 Determine data information of the data to be transmitted.
  • the data to be transmitted is the data that the remote terminal device will send to the network device through the relay terminal device.
  • S220 Generate a target cache status report according to the data information.
  • the target cache status report is a pre-sent cache status report.
  • the relay terminal device can generate a pre-sent buffer status report based on the data information after determining that the remote terminal device is about to send the data information of the data to be transmitted to the network device through the relay terminal device, and send it to
  • the network device reports the pre-sent buffer status report to request the network device to pre-allocate uplink resources corresponding to the data to be transmitted for the relay terminal device according to the pre-sent buffer status report before receiving the data to be transmitted, so that the relay terminal device Before the remote terminal device buffers the data to be transmitted to the relay terminal device, it can complete the report of the buffer status of the data to be transmitted, which reduces the delay of the relay terminal device reporting the buffer status of the data to be transmitted, thereby reducing the data
  • the transmission delay improves the efficiency of data transmission.
  • the relay terminal device reports a pre-sent buffer status report to the network device in advance.
  • the network device is based on the pre-reported buffer status report.
  • the uplink authorization assigned to the relay terminal equipment by the data information has also arrived.
  • the relay terminal equipment can directly transmit the data to be transmitted to the network equipment, thereby reducing the delay of the relay terminal equipment reporting the buffer status of the data to be transmitted and improving the uplink scheduling
  • the timeliness of the sidelink transmission system improves the system performance and user experience of the sidelink transmission system.
  • the relay terminal device learns that the remote terminal device is about to send the transmission resource information to the network device through the relay terminal device, it can predict the transmission resource information it will receive based on the transmission resource information.
  • the data information of the transmitted data is not limited to the transmission resource information.
  • the specific method of S210 may include any one of the following:
  • the remote terminal equipment is in the terminal independent resource selection mode
  • the data information is determined according to the sidelink control information (SCI) sent by the remote terminal device.
  • SCI sidelink control information
  • the remote terminal device when the remote terminal device is in the terminal autonomous resource selection mode, the remote terminal device can independently select resources, and the remote terminal device can take the way of sensing and reserved in the resource pool to obtain the information in the sidelink. On the resources.
  • the remote terminal device after the remote terminal device obtains the resources on the sidelink, it will send the SCI on the sidelink interface.
  • the SCI can include the size of the reserved resources corresponding to the data to be transmitted, the transmission method corresponding to the data to be transmitted, and the data to be transmitted Corresponding service information (for example, service priority) and the location of reserved resources corresponding to the data to be transmitted.
  • the relay terminal device can receive the SCI, and determine the data information of the to-be-transmitted data to be transmitted by the remote terminal device according to the SCI, thereby triggering the reporting of the target buffer status report.
  • the relay terminal equipment has a secondary link resource scheduling function
  • the data information is determined according to the secondary link sidelink buffer status report (Buffer Status Report, BSR) reported by the remote terminal device.
  • BSR Buffer Status Report
  • the relay terminal device may also have a certain sidelink resource scheduling function.
  • the remote terminal device needs to report its sidelink BSR to the relay terminal device so that the relay terminal device can schedule the resources of the remote terminal device based on the sidelink BSR. Therefore, when the relay terminal device receives the sidelink BSR reported by the remote terminal device, it has determined that it needs to forward the data information of the data to be transmitted to the network device. At this time, it can trigger the target buffer status report through the Uu interface. Reported.
  • the relay terminal equipment has a secondary link resource scheduling function and the relay terminal equipment sends resource authorization to the remote terminal equipment
  • the data information is determined according to the transmission information of the data corresponding to the resource authorization.
  • the relay terminal device when the relay terminal device receives the sidelink BSR reported by the remote terminal device, it cannot schedule the remote terminal device at one time. It can only schedule part of the data transmission for the remote terminal device according to the resource situation. And to authorize this part of the data, the relay terminal device has sent this part of the resource authorization data to the remote terminal device. The probability that this part of the data will be forwarded on the Uu interface next time is very high, and you can only report this part. The data information of the data. Therefore, in this case, the relay terminal device can determine the data information of the data to be transmitted to be transmitted according to the transmission information of the data corresponding to the resource authorization, thereby triggering the reporting of the target buffer status report.
  • the remote terminal equipment is in the base station scheduling mode
  • the data information is determined according to the base station scheduling information of the remote terminal equipment monitored.
  • the network equipment needs to allocate resources for the remote terminal equipment.
  • the relay terminal device can monitor the base station scheduling information that the network device sends to the remote terminal device, it can determine the data information of the data to be transmitted to be transmitted through the monitored base station scheduling information, thereby triggering the target Reporting of the cache status report.
  • the data information may include the amount of data to be transmitted and service information corresponding to the data to be transmitted.
  • the service information may include logical channel group (LCG) information of the data to be transmitted on the sidelink interface of the secondary link or the service priority corresponding to the data to be transmitted.
  • LCG logical channel group
  • the service information may also be different.
  • the service information may be the service priority of the data to be transmitted on the sidelink interface.
  • the service information may include the data to be transmitted in the sidelink LCG information of the interface.
  • the specific method of S220 may include:
  • the target LCG determines the target LCG corresponding to the service information; where the target LCG is the LCG of the uplink interface of the relay terminal device;
  • a target cache status report is generated.
  • the target LCG corresponding to the service information may be determined first according to the preset mapping relationship, then the target buffer quantity corresponding to the target LCG is determined according to the data volume, and finally the target LCG and the target buffer quantity are generated to indicate the data to be transmitted.
  • the uplink interface of the relay terminal device may be a Uu interface.
  • the LCG of the sidelink interface and the LCG of the Uu interface have a certain preset mapping relationship
  • the service priority and the LCG of the Uu interface also have a certain preset mapping relationship. Therefore, when the LCG information of the sidelink interface for the data to be transmitted or the service priority corresponding to the data to be transmitted is determined, it can be the data to be transmitted according to the preset mapping relationship between it and the LCG of the Uu interface. Match the target LCG in the Uu interface.
  • the preset mapping relationship may be determined according to network configuration, or the preset mapping relationship may also be determined according to a preset rule, which is not limited here.
  • the preset mapping relationship can be determined directly based on the corresponding relationship between the service priority of the network configuration and the LCG of the Uu interface; or, it can be directly based on the LCG and the LCG of the sidelink interface of the network configuration.
  • the corresponding relationship of the LCG of the Uu interface determines the preset mapping relationship.
  • the preset rules may include rules with the same priority.
  • the same priority rule refers to: the priority of the LCG of the Uu interface corresponding to the data to be transmitted is the same as the service priority, or the priority of the LCG of the Uu interface corresponding to the LCG of the sidelink interface is the same as that of the sidelink interface.
  • the priority of LCG is the same.
  • the business priority of the sidelink interface has a total of 8 levels, and at the same time, there are 8 groups for the LCG of the sidelink interface and the LCG of the Uu interface. Among them, when the business priority is 1-8, the smaller the number, the higher the business priority. When the LCG label of the sidelink interface is 0-7, the smaller the label value, the higher the priority, and the priority is also 1-8. When the LCG label of the Uu interface is 0-7, the smaller the label value, the higher the priority, and the priority is also 1-8.
  • the preset mapping relationship determined according to the same priority rule is: the business priority is mapped to 0-7 of the Uu interface in the order of priority from high to low.
  • Group LCG When the sidelink interface transmits LCG information, the preset mapping relationship determined according to the same priority rule is: the sidelink interface is mapped from 0-7 groups of LCG to the Uu interface 0-7 in the order of priority from high to low. Group LCG.
  • the pre-sent buffer status report refers to the buffer status report that is reported to the network device in advance before the relay terminal device receives the data to be transmitted.
  • the target buffer status report may include a media access control subheader MAC subheader, and the MAC subheader includes a logical channel (Logical Channel, LC) identification (Identity, ID) field, where the LCID field has an LCID value .
  • LC Logical Channel
  • the target buffer status report may also include a length indication field, which is used to indicate the total length of the report.
  • the LCID value of the LCID field may include any of the following conditions:
  • the LCID field may include a first LCID value, and the first LCID value is used to indicate that the target buffer status report is a pre-transmission report type.
  • the first LCID value is only used to inform the network device that the information is a pre-sent buffer status report, and at the same time, the pre-sent buffer status report is in the first report format.
  • the first LCID value does not distinguish between the first report format and the truncated first report format.
  • the LCID field may include a second LCID value or a third LCID value.
  • the second LCID value is used to indicate that the target buffer status report is in the first report format
  • the third LCID value is used to indicate that the target buffer status report is a cutoff. Short first report format.
  • the first report format and the truncated first report format use the same report format.
  • the only difference is that the truncated first report format only contains part of the pre-sent buffer status information, and there are unreported pre-sent information. Cache status information.
  • the LCID field includes the fourth LCID value, the fifth LCID value, or the sixth LCID value.
  • the fourth LCID value is used to indicate that the target buffer status report is in the first report format
  • the fifth LCID value is used to indicate that the target buffer status report is a truncated first report format
  • the sixth LCID value is used to indicate the target buffer status report It is the second report format.
  • the first report format and the second report format adopt different report formats.
  • the total length of the report corresponding to the first report format is greater than or equal to the total length of the report corresponding to the second report format, that is, the first report format is the long report format, and the first report format is the long report format.
  • the second report format is a short report format.
  • the LCID field includes four LCID values related to the target cache status report
  • the LCID field includes a seventh LCID value, an eighth LCID value, a ninth LCID value, or a tenth LCID value.
  • the seventh LCID value is used to indicate that the target buffer status report is the first report format
  • the eighth LCID value is used to indicate that the target buffer status report is the truncated first report format
  • the ninth LCID value is used to indicate that the target buffer status report is the first report format.
  • the second report format, the tenth LCID value is used to indicate that the target buffer status report is a truncated second report format.
  • the second report format and the truncated second report format use the same report format.
  • the only difference is that the truncated second report format only contains part of the pre-sent buffer status information, and there are unreported pre-sent information. Cache status information.
  • the first report format may include at least one of the following:
  • LCG indicator signal and LCG buffer status; where the LCG indicator signal is used to indicate whether each LCG has data to be transmitted, and the LCG buffer status is used to indicate the number of LCG buffers with data to be transmitted;
  • At least two sets of report information where each set of report information includes an LCG identifier and an LCG buffer status, the LCG identifier is used to indicate the LCG with data to be transmitted, and the LCG buffer status is used to indicate the number of LCG buffers.
  • Fig. 3 shows a schematic structural diagram of an example of a report format provided by an embodiment of the present invention.
  • the report format shown in FIG. 3 is a first report format, and the first report format includes an LCG indicator signal and an LCG buffer status.
  • the LCG indicator signal is composed of 8 bits, which represent 8 LCGs respectively. If the bit corresponding to the LCG is set to 1, it indicates that the LCG has data to be transmitted, that is, the LCG has a pre-sent buffer status report. If the bit corresponding to the LCG is set to 0, it indicates that the LCG has no data to be transmitted, that is, the LCG does not have a pre-sent buffer status report.
  • each LCG buffer state is composed of 8 bits.
  • the truncated first report format is mainly because the resource space is not enough to accommodate a complete target cache status report. In order to report important cache status information to the network device as soon as possible, make full use of small resources.
  • the target cache status report is truncated, that is, the truncated first report format does not contain all the memory status information, and the number of caches of the LCG with the highest priority is selected for reporting, and the number of caches of the remaining LCGs that cannot be accommodated can be discarded, but Keep the bits corresponding to these unacceptable LCGs as 1 to inform the network equipment that these LCGs also have data, but they cannot be carried due to resource problems.
  • Fig. 4 shows a schematic structural diagram of another example of a report format provided by an embodiment of the present invention.
  • the report format shown in FIG. 4 is a first report format, and the first report format includes at least two sets of report information, and each set of report information includes an LCG identifier and an LCG buffer status.
  • the LCG identifier may include 3 bits.
  • the LCG identifier is data to be transmitted, that is, the ID value corresponding to the LCG with the pre-sent buffer status report.
  • the LCG buffer status may include 5 bits, which are used to indicate the number of buffers corresponding to the group of LCGs.
  • the number of data groups in the pre-sent buffer status report of this report format changes with the actual number of LCGs with the pre-sent buffer status report.
  • the first report format and the truncated first report format can also be represented by the same LCID value, and the number of bits and the number of buffer states are used to indicate that it is the first report format. , Still the first report format truncated. For example, if the number of bit 1 is the same as the number of buffer status, it means the first report format. If the number of bit 1 is different from the number of buffer status, it means the truncated first report format. 1. Report format.
  • the second report format may include:
  • a group of report information where the report information includes an LCG identifier and an LCG buffer status, the LCG identifier is used to indicate an LCG with data to be transmitted, and the LCG buffer status is used to indicate the number of buffers of the LCG.
  • the second report format can only have one set of report information, while the first report format can have two or more than two sets of report information. Since the first report format can have at least two sets of report information, the total length of the report in the first report format is not fixed, and the length indicator field is required to indicate the total length of the report, while the second report format has only one set of report information, the second report The total length of the report format is fixed, and the length indication field is not required to indicate the total length of the report.
  • Fig. 5 shows a schematic structural diagram of another example of a report format provided by an embodiment of the present invention.
  • the report format shown in FIG. 5 is a second report format.
  • the second report format includes a group of report information, and the report information includes an LCG identifier and an LCG buffer status.
  • the LCG identifier may include 3 bits, and the LCG identifier is data to be transmitted, that is, the ID value corresponding to the LCG with the pre-sent buffer status report.
  • the LCG buffer status may include 5 bits, which are used to indicate the number of buffers corresponding to the group of LCGs.
  • the resources occupied by the generated target cache status report can be reduced.
  • the truncated second report format is mainly because the resource space is not enough to accommodate a complete target cache status report. In order to report important cache status information to the network device as soon as possible, make full use of small resources.
  • the target buffer status report is truncated, and the truncation method is similar to the truncation method of the first report format, and will not be repeated here.
  • the distinction between the second report format and the truncated second report format is to further fine-tune the reporting of information so that the network device can determine whether there is only one LCG in the cache state, or only one can be reported due to resource limitations Cache status of LCG.
  • the first report format and the truncated first report format can also be represented by the same LCID value.
  • the network device can determine that only one LCG has the buffer status, and the target buffer status report is in the second report format.
  • the target buffer status report is the data with the lowest transmission priority, so the target buffer status report may be a truncated second report format.
  • the specific method of S230 may include:
  • the target buffer status report is sent to the network device through the available uplink resource.
  • the available uplink resource may be a newly transmitted uplink resource and/or an uplink resource used by a logical channel that is not restricted to trigger the target buffer status report.
  • the available uplink resource may be a new transmission uplink resource that is not restricted to use by the logical channel that triggers the target buffer status report.
  • the relay terminal device in the case that the relay terminal device has the above-mentioned available uplink resource, it can directly send the target buffer status report to the network device through the available uplink resource.
  • the specific method of S230 may further include:
  • the target buffer status report is sent to the network device on the allocated uplink resource; where the allocated uplink resource is the available uplink resource allocated by the network device to the relay terminal device according to the SR.
  • the available uplink resource may be a newly transmitted uplink resource and/or an uplink resource used by a logical channel that is not restricted to trigger the target buffer status report.
  • the available uplink resource may be a new transmission uplink resource that is not restricted to use by the logical channel that triggers the target buffer status report.
  • the relay terminal device does not have the above-mentioned available uplink resources, it is necessary to send an SR to the network device first, so that the network device can allocate available uplink resources to the relay terminal device according to the SR. Send a target buffer status report to the network device on the available uplink resources.
  • the conventional BSR is not triggered.
  • the regular BSR is used to indicate that all logical channels of the LCG have not buffered data.
  • the relay terminal device needs to multiplex and package various types of data at the MAC layer. Therefore, various types of data need to be prioritized. In the case of insufficient resources, the first transmission priority Higher-level data.
  • the specific method of S230 may further include:
  • the target cache status report is reported to the network device.
  • the transmission priority of the target buffer status report normally reported is higher than the transmission priority of the target buffer status report as padding information.
  • the target buffer status report is expressed as pre-BSR, and according to the order of transmission priority from high to low, the order of the preset transmission priority rules is as follows:
  • C-RNTI cell radio network temporary identifier
  • UL-CCCH uplink common control channel
  • MAC CE used for pre-sent buffer status report of sidelink relay, except for pre-sent buffer status report used for filling
  • PHR power headroom report
  • MAC CE used for the pre-sent buffer status report for sidelink relay, except for the pre-sent buffer status report used for filling;
  • MAC CE used for pre-sent buffer status report of sidelink relay, except for pre-sent buffer status report used for filling
  • MAC CE used to fill the pre-sent buffer status report
  • option1-3 represents the possible positions of the transmission priority of the pre-sent buffer status report other than the pre-sent buffer status report used for filling, that is, the possible position of the transmission priority of the target buffer status report that is normally reported.
  • Alt 1-2 represents the possible position of the transmission priority of the pre-sent buffer status report used for filling, that is, the possible position of the transmission priority of the target buffer status report as the padding information.
  • the transmission priority of the target buffer status report among multiple data to be transmitted can be determined according to the aforementioned preset transmission priority rule, and the target can be reported to the network device in the order of priority according to the determined transmission priority. Cache status report.
  • the method for reporting the cache status may further include:
  • the report configuration information may include the switch configuration of the target cache status report.
  • the specific method of S220 may include:
  • a target cache status report is generated according to the data information.
  • the relay terminal device even if the relay terminal device has the ability to upload the target cache status report, it needs to receive the switch configuration of the target cache status report sent by the network device, and when the switch is configured to be on, the target is generated according to the data information. Cache status report, and when the switch is configured to be off, the target cache status report is not generated based on the data information.
  • the report configuration information may also include the generation configuration of the target cache status report.
  • the specific method of S220 may include:
  • a target cache status report is generated.
  • the configuration for generating the target cache status report may include at least one of the following:
  • the relay terminal device may generate a corresponding generation target cache status report based on the generation configuration configured by the network device.
  • the report configuration information may also include the report configuration of the target cache status report.
  • the specific method of S230 may include:
  • the report configuration of the target cache status report may include at least one of the following:
  • the relay terminal device may report the target buffer status report to the network device based on the reporting configuration configured by the network device.
  • the buffer status reporting method before receiving the report configuration information sent by the network device, the buffer status reporting method may further include:
  • the reporting capability parameter is reported to the network device, and the reporting capability parameter is used by the network device to configure the report configuration information for the relay terminal device.
  • the relay terminal device needs to first report the reporting capability parameters such as whether it supports the reporting of the target buffer status report, which generation method is supported, or which reporting method is supported to the network device, so that the network device is based on the relay terminal
  • the report capability parameter reported by the device is its configuration report configuration information.
  • the buffer status reporting method enables the relay terminal device to forward the data information of the data to be transmitted to the network device that the remote terminal device is about to transmit to the network device through the relay terminal device.
  • the network device reports the buffer status of the information to be transmitted, which can reduce the delay of the relay terminal device reporting the buffer status of the data to be transmitted, improve the timeliness of uplink scheduling, and thereby improve the system performance and user experience of the sidelink transmission system.
  • Fig. 6 shows a schematic structural diagram of an embodiment of a relay terminal device provided by the present invention.
  • the relay terminal device shown in FIG. 6 may be used to forward data sent by the remote terminal device to the network device.
  • the relay terminal device may be the relay UE 120 shown in FIG. 1
  • the remote terminal device may be the remote UE 130 shown in FIG. 1
  • the network device may be the base station 110 shown in FIG.
  • the relay terminal device 300 may include:
  • the information determining module 310 is used to determine the data information of the data to be transmitted.
  • the data to be transmitted is the data that the remote terminal device is about to send to the network device through the relay terminal device 300.
  • the report generating module 320 is configured to generate a target cache status report according to the data information.
  • the target cache status report is a pre-sent cache status report.
  • the report reporting module 330 is configured to report a target cache status report to the network device.
  • the relay terminal device 300 can generate a pre-sent buffer status report based on the data information after determining the data information of the data to be transmitted that the remote terminal device is about to send to the network device through the relay terminal device 300 , Report the pre-sent buffer status report to the network device to request the network device to pre-allocate uplink resources corresponding to the data to be transmitted for the relay terminal device 300 according to the pre-sent buffer status report before receiving the data to be transmitted, so that After the terminal device 300 can complete the reporting of the buffer status of the data to be transmitted before the remote terminal device buffers the data to be transmitted to the relay terminal device 300, the time for the relay terminal device 300 to report the buffer status of the data to be transmitted is reduced. Delay, thereby reducing the time delay of data transmission and improving the efficiency of data transmission.
  • the information determining module 310 may be specifically used to:
  • the data information is determined according to the secondary link control information SCI sent by the remote terminal device; or,
  • the data information is determined according to the sidelink BSR of the secondary link buffer status report reported by the remote terminal device; or,
  • the data information is determined according to the transmission information of the data corresponding to the resource authorization; or,
  • the data information is determined according to the base station scheduling information of the remote terminal equipment monitored.
  • the report reporting module 330 may be specifically used to:
  • the target buffer status report is sent to the network device through the available uplink resource.
  • the report reporting module 330 may also be specifically used to:
  • the target buffer status report is sent to the network device on the allocated uplink resource; the allocated uplink resource is the available uplink resource allocated by the network device to the relay terminal device 300 according to the SR.
  • the available uplink resources include at least one of the following:
  • the uplink resource used by the logical channel that triggers the target buffer status report is not restricted.
  • the data information includes the amount of data to be transmitted and service information corresponding to the data to be transmitted.
  • the service information includes the logical channel group LCG information of the sidelink interface of the sidelink of the sidelink of the data to be transmitted or the service priority corresponding to the data to be transmitted.
  • the report generation module 320 may be specifically used to:
  • the target LCG determines the target LCG corresponding to the service information; where the target LCG is the LCG of the uplink interface of the relay terminal device;
  • a target cache status report is generated.
  • the preset mapping relationship is determined according to network configuration or preset rules.
  • the preset rules include rules with the same priority.
  • the target buffer status report includes the media access control subheader MAC subheader, and the MAC subheader includes the logical channel identifier LCID field, where:
  • the LCID field includes the first LCID value, and the first LCID value is used to indicate that the target buffer status report is a pre-transmission report type; or,
  • the LCID field includes a second LCID value or a third LCID value, the second LCID value is used to indicate that the target buffer status report is in the first report format, and the third LCID value is used to indicate that the target buffer status report is in the truncated first report format; or,
  • the LCID field includes a fourth LCID value, a fifth LCID value, or a sixth LCID value.
  • the fourth LCID value is used to indicate that the target buffer status report is in the first report format
  • the fifth LCID value is used to indicate that the target buffer status report is truncated.
  • the first report format, the sixth LCID value is used to indicate that the target buffer status report is in the second report format; or,
  • the LCID field includes the seventh LCID value, the eighth LCID value, the ninth LCID value, or the tenth LCID value.
  • the seventh LCID value is used to indicate that the target buffer status report is in the first report format
  • the eighth LCID value is used to indicate the target buffer status.
  • the report is a truncated first report format
  • the ninth LCID value is used to indicate that the target buffer status report is the second report format
  • the tenth LCID value is used to indicate that the target buffer status report is a truncated second report format
  • the total length of the report corresponding to the first report format is greater than or equal to the total length of the report corresponding to the second report format.
  • the first report format includes at least one of the following:
  • LCG indicator signal and LCG buffer status; where the LCG indicator signal is used to indicate whether each LCG has data to be transmitted, and the LCG buffer status is used to indicate the number of LCG buffers with data to be transmitted;
  • At least two sets of report information where each set of report information includes an LCG identifier and an LCG buffer status, the LCG identifier is used to indicate the LCG with data to be transmitted, and the LCG buffer status is used to indicate the number of LCG buffers.
  • the second report format includes:
  • a group of report information where the report information includes an LCG identifier and an LCG buffer status, the LCG identifier is used to indicate the LCG with data to be transmitted, and the LCG buffer status is used to indicate the number of LCG buffers.
  • the target buffer status report further includes a length indication field, and the length indication field is used to indicate the total length of the report.
  • the report reporting module 330 may also be specifically used to:
  • the target cache status report is reported to the network device.
  • the relay terminal device 300 may further include:
  • the configuration receiving module is configured to receive the report configuration information sent by the network device before determining the data information of the data to be transmitted; wherein the report configuration information may include the switch configuration of the target buffer status report.
  • the report generation module 320 may be specifically used to:
  • a target cache status report is generated according to the data information.
  • the report configuration information may also include the generation configuration of the target cache status report
  • the report generation module 320 may be specifically used to:
  • a target cache status report is generated.
  • the generation configuration of the target cache status report may include at least one of the following:
  • the report configuration information may also include the report configuration of the target cache status report
  • the report reporting module 330 may be specifically used to:
  • the report configuration of the target cache status report may include at least one of the following:
  • the relay terminal device 300 may further include:
  • the parameter reporting module is used to report the reporting capability parameter to the network device before receiving the report configuration information sent by the network device.
  • the reporting capability parameter is used by the network device to configure the report configuration information for the relay terminal device 300.
  • relay terminal device 300 provided in the embodiment of the present invention can implement the various processes and effects implemented by the relay terminal device 300 in the method embodiments of FIGS. 2 to 5, and to avoid repetition, details are not described here.
  • FIG. 7 is a schematic diagram of the hardware structure of an embodiment of the relay terminal device provided by the present invention.
  • the relay terminal device 400 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, The memory 409, the processor 410, and the power supply 411 and other components.
  • the relay terminal device may include more or less components than those shown in the figure, or a combination of certain components. Components, or different component arrangements.
  • the processor 410 is used to determine the data information of the data to be transmitted, where the data to be transmitted is the data that the remote terminal device is about to send to the network device through the relay terminal device; according to the data information, a target buffer status report is generated; , The target cache status report is a pre-sent cache status report; the target cache status report is reported to the network device.
  • the relay terminal device can generate a pre-sent buffer status report based on the data information after determining that the remote terminal device is about to send the data information of the data to be transmitted to the network device through the relay terminal device, and send it to
  • the network device reports the pre-sent buffer status report to request the network device to pre-allocate uplink resources corresponding to the data to be transmitted for the relay terminal device according to the pre-sent buffer status report before receiving the data to be transmitted, so that the relay terminal device Before the remote terminal device buffers the data to be transmitted to the relay terminal device, it can complete the report of the buffer status of the data to be transmitted, which reduces the delay of the relay terminal device reporting the buffer status of the data to be transmitted, thereby reducing the data
  • the transmission delay improves the efficiency of data transmission.
  • the radio frequency unit 401 may be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, after receiving the downlink data from the base station, it is processed by the processor 410; in addition, the uplink data is sent to the base station.
  • the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 401 can also communicate with the network and other devices through a wireless communication system.
  • the relay terminal device provides users with wireless broadband Internet access through the network module 402, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 403 may convert the audio data received by the radio frequency unit 401 or the network module 402 or stored in the memory 409 into an audio signal and output it as sound. Moreover, the audio output unit 403 may also provide audio output related to a specific function performed by the relay terminal device 400 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 403 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 404 is used to receive audio or video signals.
  • the input unit 404 may include a graphics processing unit (GPU) 4041 and a microphone 4042.
  • the graphics processor 4041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frame can be displayed on the display unit 406.
  • the image frame processed by the graphics processor 4041 may be stored in the memory 409 (or other storage medium) or sent via the radio frequency unit 401 or the network module 402.
  • the microphone 4042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 401 in the case of a telephone call mode for output.
  • the relay terminal device 400 also includes at least one sensor 405, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 4061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel when the relay terminal device 400 is moved to the ear. 4061 and/or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the relay terminal equipment (such as horizontal and vertical screen switching, Related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 405 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, Thermometers, infrared sensors, etc., will not be repeated here.
  • the display unit 406 is used to display information input by the user or information provided to the user.
  • the display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 407 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the relay terminal device.
  • the user input unit 407 includes a touch panel 4071 and other input devices 4072.
  • the touch panel 4071 also called a touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 4071 or near the touch panel 4071. operate).
  • the touch panel 4071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 410, the command sent by the processor 410 is received and executed.
  • the touch panel 4071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 407 may also include other input devices 4072.
  • other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 4071 can cover the display panel 4061.
  • the touch panel 4071 detects a touch operation on or near it, it transmits it to the processor 410 to determine the type of touch event, and then the processor 410 determines the type of touch event according to the touch The type of event provides corresponding visual output on the display panel 4061.
  • the touch panel 4071 and the display panel 4061 are used as two independent components to realize the input and output functions of the relay terminal device, in some embodiments, the touch panel 4071 and the display panel The 4061 is integrated to realize the input and output functions of the relay terminal equipment, which is not specifically limited here.
  • the interface unit 408 is an interface for connecting an external device and the relay terminal device 400.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 408 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the relay terminal device 400 or can be used to Data is transferred between the device 400 and external devices.
  • the memory 409 can be used to store software programs and various data.
  • the memory 409 may mainly include a storage program area and a storage data area.
  • the storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc.
  • the memory 409 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 410 is the control center of the relay terminal device. It uses various interfaces and lines to connect the various parts of the entire relay terminal device. It runs or executes the software programs and/or modules stored in the memory 409 and calls the storage The data in 409 executes various functions of the relay terminal equipment and processes data, so as to monitor the relay terminal equipment as a whole.
  • the processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface and application programs, etc., the modem
  • the processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 410.
  • the relay terminal device 400 may also include a power source 411 (such as a battery) for supplying power to various components.
  • a power source 411 such as a battery
  • the power supply 411 may be logically connected to the processor 410 through a power management system, so that functions such as management of charging, discharging, and power consumption management can be realized through the power management system.
  • relay terminal device 400 includes some functional modules not shown, which will not be repeated here.
  • the embodiment of the present invention also provides a relay terminal device, including a processor 410, a memory 409, and a computer program stored in the memory 409 and running on the processor 410.
  • a relay terminal device including a processor 410, a memory 409, and a computer program stored in the memory 409 and running on the processor 410.
  • the computer program is executed by the processor 410,
  • Each process of the foregoing embodiment of the method for reporting a cache state is implemented, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.
  • the embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • the computer-readable storage medium may include non-transitory computer-readable storage media, such as read-only memory (Read-Only Memory, ROM for short), Random Access Memory (RAM for short), and magnetic disks. Or CD etc.
  • the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present invention.
  • a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.
  • Such a processor can be, but is not limited to, a general-purpose processor, a dedicated processor, a special application processor, or a field programmable logic circuit. It can also be understood that each block in the block diagram and/or flowchart and the combination of the blocks in the block diagram and/or flowchart can also be implemented by dedicated hardware that performs specified functions or actions, or can be implemented by dedicated hardware and A combination of computer instructions.

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Abstract

本发明实施例公开了一种缓存状态上报方法、中继终端设备及计算机可读存储介质。其中,缓存状态上报方法包括: 确定待传输数据的数据信息; 其中,待传输数据为远端终端设备即将通过中继终端设备发送至网络设备的数据; 根据数据信息,生成目标缓存状态报告; 其中,目标缓存状态报告为预发送的缓存状态报告; 向网络设备上报目标缓存状态报告。

Description

缓存状态上报方法、中继终端设备及计算机可读存储介质
相关申请的交叉引用
本申请要求享有于2020年02月24日提交的名称为“缓存状态上报方法、中继终端设备及计算机可读存储介质”的中国专利申请202010113966.1的优先权,该申请的全部内容通过引用并入本文中。
技术领域
本发明实施例涉及通信技术领域,尤其涉及一种缓存状态上报方法、中继终端设备及计算机可读存储介质。
背景技术
长期演进(Long Term Evolution,LTE)系统和新空口(New Radio,NR)系统均可以支持副链路(sidelink)。Sidelink可以使得终端设备之间不通过网络设备而直接进行数据传输,例如车联网(vehicle to everything,V2X)通信等。
但是,在利用sidelink进行数据传输的过程中,远端终端设备需要先将待传输数据缓存至中继终端设备。当待传输数据缓存完毕后,中继终端设备再将缓存完毕的待传输数据的数据信息上报给网络设备,以使网络设备为其分配上行资源,使得中继终端设备上报待传输数据的缓存状态的时延较长,如此导致数据传输的时延较长,进而降低了数据传输的效率。
发明内容
本发明实施例提供一种缓存状态上报方法、设备及介质,以解决现有技术中的中继终端设备上报待传输数据的缓存状态的时延较长,导致数据传输的时延较长、数据传输的效率较低的问题。
为了解决上述技术问题,本发明是这样实现的:
第一方面,本发明实施例提供了一种缓存状态上报方法,应用于中继终端设备,包括:
确定待传输数据的数据信息;其中,待传输数据为远端终端设备即将通过中继终端设备发送至网络设备的数据;
根据数据信息,生成目标缓存状态报告;其中,目标缓存状态报告为预发送的缓存状态报告;
向网络设备上报目标缓存状态报告。
第二方面,本发明实施例提供了一种中继终端设备,包括:
信息确定模块,用于确定待传输数据的数据信息;其中,待传输数据为远端终端设备即将通过中继终端设备发送至网络设备的数据;
报告生成模块,用于根据数据信息,生成目标缓存状态报告;其中,目标缓存状态报告为预发送的缓存状态报告;
报告上报模块,用于向网络设备上报目标缓存状态报告。
第三方面,本发明实施例提供了一种中继终端设备,包括处理器、存储器及存储在存储器上并可在处理器上运行的计算机程序,计算机程序被处理器执行时实现如第一方面所述的缓存状态上报方法的步骤。
第四方面,本发明实施例提供了一种计算机可读存储介质,计算机可读存储介质上存储计算机程序,计算机程序被处理器执行时实现如第一方面所述的缓存状态上报方法的步骤。
在本发明实施例中,中继终端设备能够在确定远端终端设备即将通过中继终端设备发送至网络设备的待传输数据的数据信息之后,根据数据信息,生成预发送的缓存状态报告,向网络设备上报该预发送的缓存状态报告,以在接收待传输数据之前,请求网络设备根据预发送的缓存状态报告为中继终端设备预先分配待传输数据对应的上行资源,从而使中继终端设备在远端终端设备将待传输数据缓存至中继终端设备之前,便能够完成待传输数据的缓存状态的上报,减少了中继终端设备上报待传输数据的缓存状态的时延,进而减少了数据传输的时延,提高了数据传输的效率。
附图说明
从下面结合附图对本发明的具体实施方式的描述中可以更好地理解本发明。其中,相同或相似的附图标记表示相同或相似的特征。
图1为一种sidelink传输系统的系统架构图;
图2为本发明提供的缓存状态上报方法的一实施例的流程示意图;
图3为本发明实施例提供的报告格式的一示例的结构示意图;
图4为本发明实施例提供的报告格式的另一示例的结构示意图;
图5为本发明实施例提供的报告格式的又一示例的结构示意图;
图6为本发明提供的中继终端设备的一实施例的结构示意图;
图7为本发明提供的中继终端设备的一实施例的硬件结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
图1示出了一种sidelink传输系统的系统架构图。如图1所示,该sidelink传输系统可以应用于LTE系统或NR系统,该sidelink传输系统可以包括基站110、中继用户设备(User Equipment,UE)120和至少一个远端UE 130。
其中,远端UE 130可以为用户使用的设备,包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。中继UE 120可以分别与每个远端UE 130通过sidelink接口通信连接,并且与基站110通过用户-上行链路(User-uplink,Uu)接口通信连接,并且用于将远端UE 130向其传输的数据转发给基站110。
在现有技术中,在利用sidelink传输系统进行数据传输的过程中,远端UE 130需要先将待传输数据缓存至中继UE 120,当待传输数据缓存完毕后,中继UE 120再将缓存完毕的待传输数据的数据信息上报给基站110,以使基站110为中继UE 120分配上行资源,使得中继UE 120上报 待传输数据的缓存状态的时延较长,如此导致数据传输的时延较长,进而降低了数据传输的效率。
为了解决现有技术中的上述问题,本发明实施例提供了一种缓存状态上报方法、中继终端设备及计算机可读存储介质。下面,首先对本发明实施例提供的缓存状态上报方法进行详细说明。
图2示出了本发明提供的缓存状态上报方法的一实施例的流程示意图。
在本发明一些实施例中,图2所示的方法可以由中继终端设备执行,其中,中继终端设备可以用于将远端终端设备向其发送的数据转发给网络设备。例如,中继终端设备可以为图1中所示的中继UE 120,远端终端设备可以为图1中所示的远端UE 130,网络设备可以为图1中所示的基站110。如图2所示,该缓存状态上报方法可以包括:
S210、确定待传输数据的数据信息。
待传输数据为远端终端设备即将通过中继终端设备发送至网络设备的数据。
S220、根据数据信息,生成目标缓存状态报告。
目标缓存状态报告为预发送的缓存状态报告。
S230、向网络设备上报目标缓存状态报告。
在本发明实施例中,中继终端设备能够在确定远端终端设备即将通过中继终端设备发送至网络设备的待传输数据的数据信息之后,根据数据信息,生成预发送的缓存状态报告,向网络设备上报该预发送的缓存状态报告,以在接收待传输数据之前,请求网络设备根据预发送的缓存状态报告为中继终端设备预先分配待传输数据对应的上行资源,从而使中继终端设备在远端终端设备将待传输数据缓存至中继终端设备之前,便能够完成待传输数据的缓存状态的上报,减少了中继终端设备上报待传输数据的缓存状态的时延,进而减少了数据传输的时延,提高了数据传输的效率。
具体地,中继终端设备预先向网络设备上报预发送的缓存状态报告,这样,当远端终端设备将待传输数据缓存至中继终端设备且待传输数据缓存完毕之后,网络设备基于预先上报的数据信息分配给中继终端设备的上 行授权也到了,中继终端设备可以直接向网络设备传输该待传输数据,从而能够减少中继终端设备上报待传输数据的缓存状态的时延,提升上行调度的时效性,进而提高sidelink传输系统的系统性能以及用户体验。
在本发明实施例的S210中,在中继终端设备了解到远端终端设备即将通过中继终端设备发送至网络设备的传输资源信息之后,即可以根据该传输资源信息预测其将接收到的待传输数据的数据信息。
在这些实施例中,可选地,S210的具体方法可以包括下列中的任一项:
一、远端终端设备处于终端自主资源选择模式
当远端终端设备处于终端自主资源选择模式时,根据远端终端设备发送的副链路控制信息(Sidelink Control Information,SCI),确定数据信息。
其中,当远端终端设备处于终端自主资源选择模式时,远端终端设备可以自主选择资源,远端终端设备可以采取在资源池中侦听(sensing)并预留(reserved)的方式获得在sidelink上的资源。
在这种情况下,远端终端设备在获得sidelink上的资源之后,会在sidelink接口上发送SCI,SCI可以包括待传输数据对应的预留资源大小、待传输数据对应的传输方式、待传输数据对应的业务信息(例如,业务优先级)和待传输数据对应的预留资源位置等。中继终端设备能够接收到该SCI,并且根据该SCI确定远端终端设备将要传输的待传输数据的数据信息,从而触发对目标缓存状态报告的上报。
二、中继终端设备具有副链路资源调度功能
当中继终端设备具有副链路sidelink资源调度功能时,根据远端终端设备上报的副链路sidelink缓存状态报告(Buffer Status Report,BSR),确定数据信息。
在一些情况下,出于资源调度或者统一管理的角度,中继终端设备也可以具有一定的sidelink资源调度功能。
在这种情况下,远端终端设备需要将自己的sidelink BSR上报给中继终端设备,以使中继终端设备基于sidelink BSR对远端终端设备进行资源 调度。因此,中继终端设备在接收到远端终端设备上报的sidelink BSR时,就已经确定其需要转发到网络设备的待传输数据的数据信息了,此时可以通过Uu接口触发对目标缓存状态报告的上报。
三、中继终端设备具有副链路资源调度功能且中继终端设备向远端终端设备发送资源授权
当中继终端设备具有副链路资源调度功能且中继终端设备向远端终端设备发送资源授权时,根据资源授权对应的数据的传输信息,确定数据信息。
在一些情况下,中继终端设备在接收到远端终端设备上报的sidelink BSR时,无法一次性对远端终端设备进行调度,只能根据资源情况先为远端终端设备调度一部分数据的传输,并对这部分数据进行资源授权,则中继终端设备已经向远端终端设备发了资源授权的这部分数据,这部分数据下次将要在Uu接口被转发的概率非常大,可以只上报这部分数据的数据信息。因此,在这种情况下,中继终端设备可以根据资源授权对应的数据的传输信息确定将要传输的待传输数据的数据信息,从而触发对目标缓存状态报告的上报。
四、远端终端设备处于基站调度模式
当远端终端设备处于基站调度模式时,根据监听到远端终端设备的基站调度信息,确定数据信息。
当远端终端设备处于基站调度模式时,需要由网络设备为远端终端设备分配资源。
在这种情况下,如果中继终端设备能够监听网络设备给远端终端设备的基站调度信息,则可以通过监听到的基站调度信息,确定将要传输的待传输数据的数据信息,从而触发对目标缓存状态报告的上报。
在本发明一些实施例中,数据信息可以包括待传输数据的数据量和待传输数据对应的业务信息。业务信息可以包括待传输数据在副链路sidelink接口的逻辑信道组(Logical Channel Group,LCG)信息或者待传输数据对应的业务优先级。
在这些实施例中,根据中继终端设备确定数据信息的方式不同,业务 信息可能也不同。具体地,在远端终端设备处于终端自主资源选择模式的情况下,业务信息可以为待传输数据在sidelink接口的业务优先级。在中继终端设备具有副链路资源调度功能、中继终端设备具有副链路资源调度功能且中继终端设备向远端终端设备发送资源授权的情况下,业务信息可以包括待传输数据在sidelink接口的LCG信息。
在这些实施例中,可选地,S220的具体方法可以包括:
根据预设映射关系,确定业务信息对应的目标LCG;其中,目标LCG为中继终端设备的上行链路接口的LCG;
根据数据量,确定目标LCG对应的目标缓存数量;
根据目标LCG和目标缓存数量,生成目标缓存状态报告。
在这些实施例中,可以首先根据预设映射关系确定业务信息对应的目标LCG,然后根据数据量确定目标LCG对应的目标缓存数量,最后根据目标LCG和目标缓存数量,生成用于指示待传输数据对应的目标LCG和待传输数据的数据量的目标缓存状态报告。
在一些实施例中,中继终端设备的上行链路接口可以为Uu接口。
具体地,sidelink接口的LCG与Uu接口的LCG具有一定的预设映射关系,并且业务优先级与Uu接口的LCG也具有一定的预设映射关系。因此,当确定了待传输数据在sidelink接口的LCG信息或待传输数据对应的业务优先级中的任一个业务信息后,即可以根据其与Uu接口的LCG的预设映射关系,为待传输数据匹配在Uu接口中的目标LCG。
在本发明一些实施例中,预设映射关系可以根据网络配置确定,或者,预设映射关系也可以根据预设规则确定,在此不做限制。
在预设映射关系根据网络配置确定的情况下,可以直接基于网络配置的业务优先级与Uu接口的LCG的对应关系,确定预设映射关系;或者,可以直接基于网络配置的sidelink接口的LCG与Uu接口的LCG的对应关系,确定预设映射关系。
在预设映射关系根据预设规则确定的情况下,预设规则可以包括优先级相同规则。具体地,优先级相同规则指的是:待传输数据所对应的Uu接口的LCG的优先级与业务优先级相同,或者,sidelink接口的LCG对应 的Uu接口的LCG的优先级与该sidelink接口的LCG的优先级相同。
例如,sidelink接口的业务优先级共有8级,同时,sidelink接口的LCG和Uu接口的LCG各有8组。其中,业务优先级为1-8级时,级数越小业务优先级越高。sidelink接口的LCG标号为0-7时,标号数值越小优先级越高,其优先级也为1-8级。Uu接口的LCG标号为0-7时,标号数值越小优先级越高,其优先级也为1-8级。当sidelink接口传递的是业务优先级时,根据优先级相同规则确定的预设映射关系为:业务优先级由1-8级按优先级由高到低的顺序依次映射到Uu接口的0-7组LCG。而当sidelink接口传递的是LCG信息时,根据优先级相同规则确定的预设映射关系为:sidelink接口由0-7组LCG按优先级由高到低的顺序依次映射到Uu接口的0-7组LCG。
在本发明实施例中,预发送的缓存状态报告指的是在中继终端设备接收到待传输数据之前,预先向网络设备上报的缓存状态报告。
在本发明一些实施例中,目标缓存状态报告可以包括媒体接入控制子头MAC subheader,该MAC subheader包括逻辑信道(Logical Channel,LC)标识(Identity,ID)域,其中,LCID域具有LCID值。
在本发明另一些实施例中,除MAC subheader以外,目标缓存状态报告还可以包括长度指示域,长度指示域用于指示所述报告总长度。
在一些实施例中,LCID域的LCID值可以包括下列任一种情况:
一、LCID域仅包括一个与目标缓存状态报告相关的LCID值
在这种情况下,LCID域可以包括第一LCID值,第一LCID值用于指示目标缓存状态报告为预发送报告类型。
具体地,第一LCID值仅用于告知网络设备,该信息为预发送的缓存状态报告,同时,预发送的缓存状态报告为第一报告格式。
需要说明的是,在这种情况下,第一LCID值不对第一报告格式和截短的第一报告格式进行区分。
二、LCID域包括两个与目标缓存状态报告相关的LCID值
在这种情况下,LCID域可以包括第二LCID值或第三LCID值,第二LCID值用于指示目标缓存状态报告为第一报告格式,第三LCID值用于指 示目标缓存状态报告为截短的第一报告格式。
其中,第一报告格式和截短的第一报告格式采用相同的报告格式,其区别仅在于截短的第一报告格式内仅包含部分预发送的缓存状态信息,还有未上报的预发送的缓存状态信息。
三、LCID域包括三个与目标缓存状态报告相关的LCID值
在这种情况下,LCID域包括第四LCID值、第五LCID值或第六LCID值。第四LCID值用于指示目标缓存状态报告为第一报告格式,第五LCID值用于指示目标缓存状态报告为截短的第一报告格式,第六LCID值用于指示所述目标缓存状态报告为第二报告格式。
其中,第一报告格式和第二报告格式采用不同的报告格式,第一报告格式对应的报告总长度大于或等于第二报告格式对应的报告总长度,即第一报告格式为长报告格式,第二报告格式为短报告格式。
四、LCID域包括四个与目标缓存状态报告相关的LCID值
在这种情况下,LCID域包括第七LCID值、第八LCID值、第九LCID值或第十LCID值。第七LCID值用于指示目标缓存状态报告为第一报告格式,第八LCID值用于指示目标缓存状态报告为截短的第一报告格式,第九LCID值用于指示目标缓存状态报告为第二报告格式,第十LCID值用于指示目标缓存状态报告为截短的第二报告格式。
其中,第二报告格式和截短的第二报告格式采用相同的报告格式,其区别仅在于截短的第二报告格式内仅包含部分预发送的缓存状态信息,还有未上报的预发送的缓存状态信息。
在本发明一些实施例中,第一报告格式可以包括下列中的至少一项:
LCG指示信号和LCG缓存状态;其中,LCG指示信号用于指示每个LCG是否具有待传输数据,LCG缓存状态用于指示具有待传输数据的LCG的缓存数量;
至少两组报告信息;其中,每组报告信息包括LCG标识和LCG缓存状态,LCG标识用于指示具有待传输数据的LCG,LCG缓存状态用于指示LCG的缓存数量。
图3示出了本发明实施例提供的报告格式的一示例的结构示意图。图 3所示的报告格式为第一报告格式,该第一报告格式包括LCG指示信号和LCG缓存状态。
LCG指示信号由8bit位构成,分别代表8个LCG。若LCG所对应的bit位设置为1,指示该LCG有待传输数据,即该LCG有预发送的缓存状态报告。若LCG所对应的bit位设置为0,指示该LCG没有待传输数据,即该LCG没有预发送的缓存状态报告。
然后,再依次携带bit位为1的LCG的缓存数量,即LCG缓存状态。其中,每个LCG缓存状态由8bit位构成。
由此,可以提高所生成的目标缓存状态报告的完整性。
继续参见图3,截短的第一报告格式主要是因为资源空间不足以容纳一个完整的目标缓存状态报告,为了尽可能的将重要的缓存状态信息尽快上报给网络设备,充分利用小块资源,将目标缓存状态报告进行截短,即截短的第一报告格式不包含所有存状态信息,而挑选其中优先级最高的LCG的缓存数量进行上报,其余无法容纳的LCG的缓存数量可以舍弃,但保持这些无法容纳的LCG对应的bit位为1,以告知网络设备这些LCG也是有数据的,但由于资源问题无法携带。
需要说明的是,如果存在优先级相同的LCG,则同时保留或者同时舍去这些LCG的缓存状态。如果只剩一个资源位置,而可选的有两个相同优先级的LCG,则此时可以任意选择一个,从而避免了资源浪费。
图4示出了本发明实施例提供的报告格式的另一示例的结构示意图。图4所示的报告格式为第一报告格式,该第一报告格式包括至少两组报告信息,每组报告信息包括LCG标识和LCG缓存状态。
LCG标识可以包括3bit位,LCG标识为有待传输数据,即有预发送的缓存状态报告的LCG对应的ID值。LCG缓存状态可以包括5bit位,用于表示该组的LCG对应的缓存数量。
这种报告格式的预发送的缓存状态报告内的数据组数随着有预发送的缓存状态报告的LCG的实际数量而改变。
由此,可以提高所生成的目标缓存状态报告的灵活性。
在本发明一些实施例中,第一报告格式和截短的第一报告格式还可以 利用相同的LCID值表示,并通过bit位的个数和缓存状态的个数,来表示是第一报告格式,还是截短的第一报告格式。例如,如果bit位为1的个数和缓存状态的个数相同,则说明是第一报告格式,如果bit位为1的个数和缓存状态的个数不相同,则说明是截短的第一报告格式。
在本发明一些实施例中,第二报告格式可以包括:
一组报告信息;其中,报告信息包括LCG标识和LCG缓存状态,LCG标识用于指示具有待传输数据的LCG,LCG缓存状态用于指示所述LCG的缓存数量。
需要说明的是,第二报告格式只能有一组报告信息,而第一报告格式可以由两组及两组以上的报告信息。由于第一报告格式可以有至少两组报告信息,第一报告格式的报告总长度不固定,则需要长度指示域指示其报告总长度,而第二报告格式由于只有一组报告信息,第二报告格式的报告总长度固定,则不需要长度指示域指示其报告总长度。
图5示出了本发明实施例提供的报告格式的又一示例的结构示意图。图5所示的报告格式为第二报告格式,该第二报告格式包括一组报告信息,报告信息包括LCG标识和LCG缓存状态。
具体地,LCG标识可以包括3bit位,LCG标识为有待传输数据,即有预发送的缓存状态报告的LCG对应的ID值。LCG缓存状态可以包括5bit位,用于表示该组的LCG对应的缓存数量。
由此,可以降低所生成的目标缓存状态报告所占用的资源。
继续参见图5,截短的第二报告格式主要是因为资源空间不足以容纳一个完整的目标缓存状态报告,为了尽可能的将重要的缓存状态信息尽快上报给网络设备,充分利用小块资源,将目标缓存状态报告进行截短,其截短方式与第一报告格式的截短方式相似,在此不做赘述。
需要说明的是,第二报告格式和截短的第二报告格式之间的区分,是为了进一步精细上报信息,使网络设备确定到底是只有一个LCG有缓存状态,还是由于资源限制只能上报一个LCG的缓存状态。第一报告格式和截短的第一报告格式还可以利用相同的LCID值表示。当资源有富裕时,即仍旧携带有其它比目标缓存状态报告的传输优先级更低的数据时, 这时网络设备可以确定只有一个LCG有缓存状态,目标缓存状态报告为第二报告格式,如果在整个MAC协议数据单元(Protocol Data Unit,PDU)中,目标缓存状态报告是传输优先级最低的数据,那么目标缓存状态报告有可能是截短的第二报告格式。
在本发明一些实施例中,S230的具体方法可以包括:
在存在目标缓存状态报告对应的可用上行资源的情况下,通过可用上行资源向网络设备发送目标缓存状态报告。
可选地,可用上行资源可以为新传输上行资源和/或未限制触发目标缓存状态报告的逻辑信道使用的上行资源。
在一些实施例中,可用上行资源可以为未限制触发目标缓存状态报告的逻辑信道使用的新传输上行资源。
具体地,在中继终端设备存在上述的可用上行资源的情况下,则可以直接通过该可用上行资源向网络设备发送目标缓存状态报告。
在本发明另一些实施例中,S230的具体方法还可以包括:
在不存在目标缓存状态报告对应的可用上行资源的情况下,向网络设备发送上行调度请求(Scheduling Request,SR);
在分配上行资源上向网络设备发送目标缓存状态报告;其中,分配上行资源为网络设备根据SR向中继终端设备分配的可用上行资源。
可选地,可用上行资源可以为新传输上行资源和/或未限制触发目标缓存状态报告的逻辑信道使用的上行资源。
在一些实施例中,可用上行资源可以为未限制触发目标缓存状态报告的逻辑信道使用的新传输上行资源。
具体地,在中继终端设备不存在上述的可用上行资源的情况下,则需要先向网络设备发送SR,以使网络设备根据SR向中继终端设备分配可用上行资源,并在网络设备分配的可用上行资源上向网络设备发送目标缓存状态报告。
在本发明一些实施例中,当中继终端设备的一个LCG的所有逻辑信道均未缓存数据时,如果该LCG中有目标缓存状态报告需要上报时,则不触发常规BSR。常规BSR用于指示该LCG的所有逻辑信道均未缓存数 据。
在本发明实施例中,中继终端设备在MAC层需要对各种类型的数据进行复用组包,因此,各种类型的数据需要有优先级排序,在资源不够的情况下,先传输优先级较高的数据。
在本发明一些实施例中,S230的具体方法还可以包括:
根据预设传输优先级规则,确定目标缓存状态报告的传输优先级;
根据传输优先级,向网络设备上报目标缓存状态报告。
在一些实施例中,正常上报的目标缓存状态报告的传输优先级高于作为填充padding信息的目标缓存状态报告的传输优先级。
在一些实施例中,将目标缓存状态报告表示为pre-BSR,按照传输优先级由高到低的顺序,预设传输优先级规则的排序如下:
-用于小区无线网络临时标识符(C-RNTI)的MAC控制单元CE或来自上行链路公共控制信道(UL-CCCH)的数据;
-配置授权确认的MAC CE;
-用于缓冲状态报告BSR的MAC CE,用于填充的BSR除外;
-option1:用于sidelink中继的预发送的缓存状态报告的MAC CE,用于填充的预发送的缓存状态报告除外;
-单条目的功率余量报告(PHR)的MAC CE或多条目PHR的MAC CE;
-option2:用于sidelink中继的预发送的缓存状态报告的MAC CE,用于填充的预发送的缓存状态报告除外;;
-用于sidelink BSR的MAC CE,用于填充的sidelink BSR除外;
-option3:用于sidelink中继的预发送的缓存状态报告的MAC CE,用于填充的预发送的缓存状态报告除外;
-来自除UL-CCCH之外的任何逻辑信道的数据;
-用于推荐的比特率获取的MAC CE;
-用于填充的BSR的MAC CE;
-Alt 1:用于填充的预发送的缓存状态报告的MAC CE;
-用于填充的sidelink BSR的MAC CE;
-Alt 2:用于填充的预发送的缓存状态报告的。
option1-3代表除用于填充的预发送的缓存状态报告之外的预发送的缓存状态报告的传输优先级的可能位置,即正常上报的目标缓存状态报告的传输优先级的可能位置。Alt 1-2代表用于填充的预发送的缓存状态报告的传输优先级的可能位置,即作为填充padding信息的目标缓存状态报告的传输优先级的可能位置。
由此,可以根据上述的预设传输优先级规则,确定目标缓存状态报告在多个需要传输的数据中的传输优先级,并根据所确定的传输优先级,按照优先级顺序向网络设备上报目标缓存状态报告。
在本发明一些实施例中,在S210之前,该缓存状态上报方法还可以包括:
接收网络设备发送的报告配置信息;其中,报告配置信息可以包括目标缓存状态报告的开关配置。
在这些实施例中,可选地,S220的具体方法可以包括:
在开关配置为开启的情况下,根据数据信息,生成目标缓存状态报告。
在这些实施例中,即使中继终端设备具备上传目标缓存状态报告的能力,也需要接收网络设备发送的目标缓存状态报告的开关配置,并且在开关配置为开启的情况下,根据数据信息生成目标缓存状态报告,而在开关配置为关闭的情况下,不根据数据信息生成目标缓存状态报告。
在本发明一些实施例中,报告配置信息还可以包括目标缓存状态报告的生成配置。
在这些实施例中,可选地,S220的具体方法可以包括:
根据数据信息和生成配置,生成目标缓存状态报告。
在这些实施例中,可选地,目标缓存状态报告的生成配置可以包括下列中的至少一项:
目标缓存状态报告的报告格式;
具有触发目标缓存状态报告的功能的LCG。
在这些实施例中,中继终端设备可以基于网络设备为其配置的生成配 置,生成相应的生成目标缓存状态报告。
在本发明一些实施例中,报告配置信息还可以包括目标缓存状态报告的上报配置。
在这些实施例中,可选地,S230的具体方法可以包括:
根据上报配置,向网络设备上报目标缓存状态报告。
在这些实施例中,可选地,目标缓存状态报告的上报配置可以包括下列中的至少一项:
是否支持目标缓存状态报告作为填充padding信息进行上报;
目标缓存状态报告是否具有触发SR的功能;
具有触发SR的功能的目标缓存状态报告所属的LCG;
具有触发带有延迟定时器的SR的功能的目标缓存状态报告所属的LCG;
目标缓存状态报告的延迟定时器的参数;
目标缓存状态报告的重传定时器的参数;
目标缓存状态报告的禁止定时器的参数。
在这些实施例中,中继终端设备可以基于网络设备为其配置的上报配置,向网络设备上报目标缓存状态报告。
在本发明一些实施例中,在接收网络设备发送的报告配置信息之前,该缓存状态上报方法还可以包括:
向网络设备上报报告能力参数,报告能力参数用于网络设备为中继终端设备配置报告配置信息。
在这些实施例中,中继终端设备需要先将是否支持目标缓存状态报告的上报、支持哪种生成方式或者支持哪种上报方式等报告能力参数上报给网络设备,以使网络设备基于中继终端设备所上报的报告能力参数为其配置报告配置信息。
综上所述,本发明实施例提供的缓存状态上报方法,能够使中继终端设备在获知远端终端设备即将通过该中继终端设备向网络设备传输的待传输数据的数据信息之后,提前向网络设备上报该待传输信息的缓存状态,从而能够减少中继终端设备上报待传输数据的缓存状态的时延,提升上行 调度的时效性,进而提高sidelink传输系统的系统性能以及用户体验。
图6示出了本发明提供的中继终端设备的一实施例的结构示意图。
在本发明一些实施例中,图6所示的中继终端设备可以用于将远端终端设备向其发送的数据转发给网络设备。例如,中继终端设备可以为图1中所示的中继UE 120,远端终端设备可以为图1中所示的远端UE 130,网络设备可以为图1中所示的基站110。如图6所示,该中继终端设备300可以包括:
信息确定模块310,用于确定待传输数据的数据信息。
待传输数据为远端终端设备即将通过中继终端设备300发送至网络设备的数据。
报告生成模块320,用于根据数据信息,生成目标缓存状态报告。
其中,目标缓存状态报告为预发送的缓存状态报告。
报告上报模块330,用于向网络设备上报目标缓存状态报告。
在本发明实施例中,中继终端设备300能够在确定远端终端设备即将通过中继终端设备300发送至网络设备的待传输数据的数据信息之后,根据数据信息,生成预发送的缓存状态报告,向网络设备上报该预发送的缓存状态报告,以在接收待传输数据之前,请求网络设备根据预发送的缓存状态报告为中继终端设备300预先分配待传输数据对应的上行资源,从而使中继终端设备300在远端终端设备将待传输数据缓存至中继终端设备300之前,便能够完成待传输数据的缓存状态的上报,减少了中继终端设备300上报待传输数据的缓存状态的时延,进而减少了数据传输的时延,提高了数据传输的效率。
在本发明一些实施例中,信息确定模块310可以具体用于:
当远端终端设备处于终端自主资源选择模式时,根据远端终端设备发送的副链路控制信息SCI,确定数据信息;或,
当中继终端设备300具有副链路资源调度功能时,根据远端终端设备上报的副链路缓存状态报告sidelink BSR,确定数据信息;或,
当中继终端设备300具有副链路资源调度功能且中继终端设备300向远端终端设备发送资源授权时,根据资源授权对应的数据的传输信息,确 定数据信息;或,
当远端终端设备处于基站调度模式时,根据监听到远端终端设备的基站调度信息,确定数据信息。
在本发明一些实施例中,报告上报模块330可以具体用于:
在存在目标缓存状态报告对应的可用上行资源的情况下,通过可用上行资源向网络设备发送目标缓存状态报告。
在本发明另一些实施例中,报告上报模块330还可以具体用于:
在不存在目标缓存状态报告对应的可用上行资源的情况下,向网络设备发送上行调度请求SR;
在分配上行资源上向网络设备发送目标缓存状态报告;其中,分配上行资源为网络设备根据SR向中继终端设备300分配的可用上行资源。
在本发明一些实施例中,可用上行资源包括下列中的至少一项:
新传输上行资源;
未限制触发目标缓存状态报告的逻辑信道使用的上行资源。
在本发明一些实施例中,数据信息包括待传输数据的数据量和待传输数据对应的业务信息。业务信息包括待传输数据在副链路sidelink接口的逻辑信道组LCG信息或者待传输数据对应的业务优先级。
在本发明一些实施例中,报告生成模块320可以具体用于:
根据预设映射关系,确定业务信息对应的目标LCG;其中,目标LCG为中继终端设备的上行链路接口的LCG;
根据数据量,确定目标LCG对应的目标缓存数量;
根据目标LCG和目标缓存数量,生成目标缓存状态报告。
在本发明一些实施例中,预设映射关系根据网络配置或预设规则确定。
在本发明一些实施例中,预设规则包括优先级相同规则。
在本发明一些实施例中,目标缓存状态报告包括媒体接入控制子头MAC subheader,MAC subheader包括逻辑信道标识LCID域,其中:
LCID域包括第一LCID值,第一LCID值用于指示目标缓存状态报告为预发送报告类型;或,
LCID域包括第二LCID值或第三LCID值,第二LCID值用于指示目标缓存状态报告为第一报告格式,第三LCID值用于指示目标缓存状态报告为截短的第一报告格式;或,
LCID域包括第四LCID值、第五LCID值或第六LCID值,第四LCID值用于指示目标缓存状态报告为第一报告格式,第五LCID值用于指示目标缓存状态报告为截短的第一报告格式,第六LCID值用于指示目标缓存状态报告为第二报告格式;或,
LCID域包括第七LCID值、第八LCID值、第九LCID值或第十LCID值,第七LCID值用于指示目标缓存状态报告为第一报告格式,第八LCID值用于指示目标缓存状态报告为截短的第一报告格式,第九LCID值用于指示目标缓存状态报告为第二报告格式,第十LCID值用于指示目标缓存状态报告为截短的第二报告格式;
其中,第一报告格式对应的报告总长度大于或等于第二报告格式对应的报告总长度。
在本发明一些实施例中,第一报告格式包括下列中的至少一项:
LCG指示信号和LCG缓存状态;其中,LCG指示信号用于指示每个LCG是否具有待传输数据,LCG缓存状态用于指示具有待传输数据的LCG的缓存数量;
至少两组报告信息;其中,每组报告信息包括LCG标识和LCG缓存状态,LCG标识用于指示具有待传输数据的LCG,LCG缓存状态用于指示LCG的缓存数量。
在本发明一些实施例中,第二报告格式包括:
一组报告信息;其中,报告信息包括LCG标识和LCG缓存状态,LCG标识用于指示具有待传输数据的LCG,LCG缓存状态用于指示LCG的缓存数量。
在本发明一些实施例中,目标缓存状态报告还包括长度指示域,长度指示域用于指示报告总长度。
在本发明一些实施例中,报告上报模块330还可以具体用于:
根据预设传输优先级规则,确定目标缓存状态报告的传输优先级;
根据传输优先级,向网络设备上报目标缓存状态报告。
在本发明一些实施例中,该中继终端设备300还可以包括:
配置接收模块,用于在确定待传输数据的数据信息之前,接收网络设备发送的报告配置信息;其中,报告配置信息可以包括目标缓存状态报告的开关配置。
在这些实施例中,可选地,报告生成模块320可以具体用于:
在开关配置为开启的情况下,根据数据信息,生成目标缓存状态报告。
在本发明一些实施例中,报告配置信息还可以包括目标缓存状态报告的生成配置;
在这些实施例中,可选地,报告生成模块320可以具体用于:
根据数据信息和生成配置,生成目标缓存状态报告。
在本发明一些实施例中,目标缓存状态报告的生成配置可以包括下列中的至少一项:
目标缓存状态报告的报告格式;
具有触发目标缓存状态报告的功能的LCG。
在本发明一些实施例中,报告配置信息还可以包括目标缓存状态报告的上报配置;
在这些实施例中,可选地,报告上报模块330可以具体用于:
根据上报配置,向网络设备上报目标缓存状态报告。
在本发明一些实施例中,目标缓存状态报告的上报配置可以包括下列中的至少一项:
是否支持目标缓存状态报告作为填充padding信息进行上报;
目标缓存状态报告是否具有触发SR的功能;
具有触发SR的功能的目标缓存状态报告所属的LCG;
具有触发带有延迟定时器的SR的功能的目标缓存状态报告所属的LCG;
目标缓存状态报告的延迟定时器的参数;
目标缓存状态报告的重传定时器的参数;
目标缓存状态报告的禁止定时器的参数。
在本发明一些实施例中,该中继终端设备300还可以包括:
参数上报模块,用于在接收网络设备发送的报告配置信息之前,向网络设备上报报告能力参数,报告能力参数用于网络设备为中继终端设备300配置报告配置信息。
需要说明的是,本发明实施例提供的中继终端设备300能够实现图2至图5的方法实施例中中继终端设备300实现的各个过程和效果,为避免重复,这里不再赘述。
图7为本发明提供的中继终端设备的一实施例的硬件结构示意图。如图7所示,该中继终端设备400包括但不限于:射频单元401、网络模块402、音频输出单元403、输入单元404、传感器405、显示单元406、用户输入单元407、接口单元408、存储器409、处理器410、以及电源411等部件。本领域技术人员可以理解,图7中示出的中继终端设备结构并不构成对中继终端设备的限定,中继终端设备可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。
其中,处理器410,用于确定待传输数据的数据信息,其中,待传输数据为远端终端设备即将通过中继终端设备发送至网络设备的数据;根据数据信息,生成目标缓存状态报告;其中,目标缓存状态报告为预发送的缓存状态报告;向网络设备上报目标缓存状态报告。
在本发明实施例中,中继终端设备能够在确定远端终端设备即将通过中继终端设备发送至网络设备的待传输数据的数据信息之后,根据数据信息,生成预发送的缓存状态报告,向网络设备上报该预发送的缓存状态报告,以在接收待传输数据之前,请求网络设备根据预发送的缓存状态报告为中继终端设备预先分配待传输数据对应的上行资源,从而使中继终端设备在远端终端设备将待传输数据缓存至中继终端设备之前,便能够完成待传输数据的缓存状态的上报,减少了中继终端设备上报待传输数据的缓存状态的时延,进而减少了数据传输的时延,提高了数据传输的效率。
应理解的是,本发明实施例中,射频单元401可用于收发信息或通话过程中,信号的接收和发送。具体的,将来自基站的下行数据接收后,给 处理器410处理;另外,将上行的数据发送给基站。通常,射频单元401包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外,射频单元401还可以通过无线通信系统与网络和其他设备通信。
中继终端设备通过网络模块402为用户提供了无线的宽带互联网访问,如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元403可以将射频单元401或网络模块402接收的或者在存储器409中存储的音频数据转换成音频信号并且输出为声音。而且,音频输出单元403还可以提供与中继终端设备400执行的特定功能相关的音频输出(例如,呼叫信号接收声音、消息接收声音等等)。音频输出单元403包括扬声器、蜂鸣器以及受话器等。
输入单元404用于接收音频或视频信号。输入单元404可以包括图形处理器(Graphics Processing Unit,GPU)4041和麦克风4042,图形处理器4041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元406上。经图形处理器4041处理后的图像帧可以存储在存储器409(或其它存储介质)中或者经由射频单元401或网络模块402进行发送。麦克风4042可以接收声音,并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元401发送到移动通信基站的格式输出。
中继终端设备400还包括至少一种传感器405,比如光传感器、运动传感器以及其他传感器。具体地,光传感器包括环境光传感器及接近传感器,其中,环境光传感器可根据环境光线的明暗来调节显示面板4061的亮度,接近传感器可在中继终端设备400移动到耳边时,关闭显示面板4061和/或背光。作为运动传感器的一种,加速计传感器可检测各个方向上(一般为三轴)加速度的大小,静止时可检测出重力的大小及方向,可用于识别中继终端设备姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等;传感器405还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压 计、湿度计、温度计、红外线传感器等,在此不再赘述。
显示单元406用于显示由用户输入的信息或提供给用户的信息。显示单元406可包括显示面板4061,可以采用液晶显示器(Liquid Crystal Display,LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板4061。
用户输入单元407可用于接收输入的数字或字符信息,以及产生与中继终端设备的用户设置以及功能控制有关的键信号输入。具体地,用户输入单元407包括触控面板4071以及其他输入设备4072。触控面板4071,也称为触摸屏,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板4071上或在触控面板4071附近的操作)。触控面板4071可包括触摸检测装置和触摸控制器两个部分。其中,触摸检测装置检测用户的触摸方位,并检测触摸操作带来的信号,将信号传送给触摸控制器;触摸控制器从触摸检测装置上接收触摸信息,并将它转换成触点坐标,再送给处理器410,接收处理器410发来的命令并加以执行。此外,可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板4071。除了触控面板4071,用户输入单元407还可以包括其他输入设备4072。具体地,其他输入设备4072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
进一步的,触控面板4071可覆盖在显示面板4061上,当触控面板4071检测到在其上或附近的触摸操作后,传送给处理器410以确定触摸事件的类型,随后处理器410根据触摸事件的类型在显示面板4061上提供相应的视觉输出。虽然在图7中,触控面板4071与显示面板4061是作为两个独立的部件来实现中继终端设备的输入和输出功能,但是在某些实施例中,可以将触控面板4071与显示面板4061集成而实现中继终端设备的输入和输出功能,具体此处不做限定。
接口单元408为外部装置与中继终端设备400连接的接口。例如,外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的 端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元408可以用于接收来自外部装置的输入(例如,数据信息、电力等等)并且将接收到的输入传输到中继终端设备400内的一个或多个元件或者可以用于在中继终端设备400和外部装置之间传输数据。
存储器409可用于存储软件程序以及各种数据。存储器409可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外,存储器409可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器410是中继终端设备的控制中心,利用各种接口和线路连接整个中继终端设备的各个部分,通过运行或执行存储在存储器409内的软件程序和/或模块,以及调用存储在存储器409内的数据,执行中继终端设备的各种功能和处理数据,从而对中继终端设备进行整体监控。处理器410可包括一个或多个处理单元;优选的,处理器410可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序等,调制解调处理器主要处理无线通信。可以理解的是,上述调制解调处理器也可以不集成到处理器410中。
中继终端设备400还可以包括给各个部件供电的电源411(比如电池)。优选的,电源411可以通过电源管理系统与处理器410逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外,中继终端设备400包括一些未示出的功能模块,在此不再赘述。
优选的,本发明实施例还提供一种中继终端设备,包括处理器410,存储器409,存储在存储器409上并可在处理器410上运行的计算机程序,该计算机程序被处理器410执行时实现上述缓存状态上报方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本发明实施例还提供一种计算机可读存储介质,计算机可读存储介质 上存储有计算机程序,该计算机程序被处理器执行时实现上述缓存状态上报方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质可包括非暂态计算机可读存储介质,如只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的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(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本发明各个实施例所述的方法。
上面参考根据本申请的实施例的方法、装置(系统)和计算机程序产品的流程图和/或框图描述了本申请的各方面。应当理解,流程图和/或框图中的每个方框以及流程图和/或框图中各方框的组合可以由计算机程序指令实现。这些计算机程序指令可被提供给通用计算机、专用计算机、或其它可编程数据处理装置的处理器,以产生一种机器,使得经由计算机或其它可编程数据处理装置的处理器执行的这些指令使能对流程图和/或框图的一个或多个方框中指定的功能/动作的实现。这种处理器可以是但不限于是通用处理器、专用处理器、特殊应用处理器或者现场可编程逻辑电路。还可理解,框图和/或流程图中的每个方框以及框图和/或流程图中的方框的组合,也可以由执行指定的功能或动作的专用硬件来实现,或可由专用硬 件和计算机指令的组合来实现。
上面结合附图对本发明的实施例进行了描述,但是本发明并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本发明的启示下,在不脱离本发明宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本发明的保护之内。

Claims (42)

  1. 一种缓存状态上报方法,应用于中继终端设备,所述方法包括:
    确定待传输数据的数据信息;其中,所述待传输数据为所述远端终端设备即将通过所述中继终端设备发送至网络设备的数据;
    根据所述数据信息,生成目标缓存状态报告;其中,所述目标缓存状态报告为预发送的缓存状态报告;
    向所述网络设备上报所述目标缓存状态报告。
  2. 根据权利要求1所述的方法,其中,所述确定待传输数据的数据信息,包括:
    当所述远端终端设备处于终端自主资源选择模式时,根据所述远端终端设备发送的副链路控制信息SCI,确定所述数据信息;或,
    当所述中继终端设备具有副链路资源调度功能时,根据所述远端终端设备上报的副链路缓存状态报告sidelink BSR,确定所述数据信息;或,
    当所述中继终端设备具有所述副链路资源调度功能且所述中继终端设备向所述远端终端设备发送资源授权时,根据所述资源授权对应的数据的传输信息,确定所述数据信息;或,
    当所述远端终端设备处于基站调度模式时,根据监听到所述远端终端设备的基站调度信息,确定所述数据信息。
  3. 根据权利要求1所述的方法,其中,所述向所述网络设备上报所述目标缓存状态报告,包括:
    在存在所述目标缓存状态报告对应的可用上行资源的情况下,通过所述可用上行资源向所述网络设备发送所述目标缓存状态报告。
  4. 根据权利要求1所述的方法,其中,所述向所述网络设备上报所述目标缓存状态报告,还包括:
    在不存在所述目标缓存状态报告对应的可用上行资源的情况下,向所述网络设备发送上行调度请求SR;
    在分配上行资源上向所述网络设备发送所述目标缓存状态报告;其中,所述分配上行资源为所述网络设备根据所述SR向所述中继终端设备 分配的可用上行资源。
  5. 根据权利要求3或4所述的方法,其中,所述可用上行资源包括下列中的至少一项:
    新传输上行资源;
    未限制触发所述目标缓存状态报告的逻辑信道使用的上行资源。
  6. 根据权利要求1所述的方法,其中,所述数据信息包括所述待传输数据的数据量和所述待传输数据对应的业务信息,其中,所述业务信息包括所述待传输数据在副链路sidelink接口的逻辑信道组LCG信息或者所述待传输数据对应的业务优先级。
  7. 根据权利要求6所述的方法,其中,所述根据所述数据信息,生成目标缓存状态报告,包括:
    根据预设映射关系,确定所述业务信息对应的目标LCG;其中,所述目标LCG为所述中继终端设备的上行链路接口的LCG;
    根据所述数据量,确定所述目标LCG对应的目标缓存数量;
    根据所述目标LCG和所述目标缓存数量,生成所述目标缓存状态报告。
  8. 根据权利要求7所述的方法,其中,所述预设映射关系根据网络配置或预设规则确定。
  9. 根据权利要求8所述的方法,其中,所述预设规则包括优先级相同规则。
  10. 根据权利要求1所述的方法,其中,所述目标缓存状态报告包括媒体接入控制子头MAC subheader,所述MAC subheader包括逻辑信道标识LCID域,其中:
    所述LCID域包括第一LCID值,所述第一LCID值用于指示所述目标缓存状态报告为预发送报告类型;或,
    所述LCID域包括第二LCID值或第三LCID值,所述第二LCID值用于指示所述目标缓存状态报告为第一报告格式,所述第三LCID值用于指示所述目标缓存状态报告为截短的第一报告格式;或,
    所述LCID域包括第四LCID值、第五LCID值或第六LCID值,所述 第四LCID值用于指示所述目标缓存状态报告为所述第一报告格式,所述第五LCID值用于指示所述目标缓存状态报告为所述截短的第一报告格式,所述第六LCID值用于指示所述目标缓存状态报告为第二报告格式;或,
    所述LCID域包括第七LCID值、第八LCID值、第九LCID值或第十LCID值,所述第七LCID值用于指示所述目标缓存状态报告为所述第一报告格式,所述第八LCID值用于指示所述目标缓存状态报告为所述截短的第一报告格式,所述第九LCID值用于指示所述目标缓存状态报告为所述第二报告格式,所述第十LCID值用于指示所述目标缓存状态报告为截短的第二报告格式;
    其中,所述第一报告格式对应的报告总长度大于或等于所述第二报告格式对应的报告总长度。
  11. 根据权利要求10所述的方法,其中,所述第一报告格式包括下列中的至少一项:
    LCG指示信号和LCG缓存状态;其中,所述LCG指示信号用于指示每个LCG是否具有待传输数据,所述LCG缓存状态用于指示具有待传输数据的LCG的缓存数量;
    至少两组报告信息;其中,每组所述报告信息包括LCG标识和LCG缓存状态,所述LCG标识用于指示具有待传输数据的LCG,所述LCG缓存状态用于指示所述LCG的缓存数量。
  12. 根据权利要求10所述的方法,其中,所述第二报告格式包括:
    一组报告信息;其中,所述报告信息包括LCG标识和LCG缓存状态,所述LCG标识用于指示具有待传输数据的LCG,所述LCG缓存状态用于指示所述LCG的缓存数量。
  13. 根据权利要求10所述的方法,其中,所述目标缓存状态报告还包括长度指示域,所述长度指示域用于指示所述报告总长度。
  14. 根据权利要求1所述的方法,其中,所述向所述网络设备上报所述目标缓存状态报告,包括:
    根据预设传输优先级规则,确定所述目标缓存状态报告的传输优先 级;
    根据所述传输优先级,向所述网络设备上报所述目标缓存状态报告。
  15. 根据权利要求1所述的方法,其中,所述确定待传输数据的数据信息之前,还包括:
    接收所述网络设备发送的报告配置信息;其中,所述报告配置信息包括所述目标缓存状态报告的开关配置;
    其中,所述根据所述数据信息,生成目标缓存状态报告,包括:
    在所述开关配置为开启的情况下,根据所述数据信息,生成所述目标缓存状态报告。
  16. 根据权利要求15所述的方法,其中,所述报告配置信息还包括所述目标缓存状态报告的生成配置;
    其中,所述根据所述数据信息,生成目标缓存状态报告,包括:
    根据所述数据信息和所述生成配置,生成所述目标缓存状态报告。
  17. 根据权利要求16所述的方法,其中,所述目标缓存状态报告的生成配置包括下列中的至少一项:
    目标缓存状态报告的报告格式;
    具有触发目标缓存状态报告的功能的LCG。
  18. 根据权利要求15所述的方法,其中,所述报告配置信息还包括所述目标缓存状态报告的上报配置;
    其中,所述向所述网络设备上报所述目标缓存状态报告,包括:
    根据所述上报配置,向所述网络设备上报所述目标缓存状态报告。
  19. 根据权利要求18所述的方法,其中,所述目标缓存状态报告的上报配置包括下列中的至少一项:
    是否支持目标缓存状态报告作为填充padding信息进行上报;
    目标缓存状态报告是否具有触发SR的功能;
    具有触发SR的功能的目标缓存状态报告所属的LCG;
    具有触发带有延迟定时器的SR的功能的目标缓存状态报告所属的LCG;
    目标缓存状态报告的延迟定时器的参数;
    目标缓存状态报告的重传定时器的参数;
    目标缓存状态报告的禁止定时器的参数。
  20. 根据权利要求15所述的方法,其中,所述接收所述网络设备发送的报告配置信息之前,还包括:
    向所述网络设备上报报告能力参数,所述报告能力参数用于所述网络设备为所述中继终端设备配置所述报告配置信息。
  21. 一种中继终端设备,包括:
    信息确定模块,用于确定待传输数据的数据信息;其中,所述待传输数据为所述远端终端设备即将通过所述中继终端设备发送至网络设备的数据;
    报告生成模块,用于根据所述数据信息,生成目标缓存状态报告;其中,所述目标缓存状态报告为预发送的缓存状态报告;
    报告上报模块,用于向所述网络设备上报所述目标缓存状态报告。
  22. 根据权利要求21所述的中继终端设备,其中,所述信息确定模块具体用于:
    当所述远端终端设备处于终端自主资源选择模式时,根据所述远端终端设备发送的副链路控制信息SCI,确定所述数据信息;或,
    当所述中继终端设备具有副链路资源调度功能时,根据所述远端终端设备上报的副链路缓存状态报告sidelink BSR,确定所述数据信息;或,
    当所述中继终端设备具有所述副链路资源调度功能且所述中继终端设备向所述远端终端设备发送资源授权时,根据所述资源授权对应的数据的传输信息,确定所述数据信息;或,
    当所述远端终端设备处于基站调度模式时,根据监听到所述远端终端设备的基站调度信息,确定所述数据信息。
  23. 根据权利要求21所述的中继终端设备,其中,所述报告上报模块具体用于:
    在存在所述目标缓存状态报告对应的可用上行资源的情况下,通过所述可用上行资源向所述网络设备发送所述目标缓存状态报告。
  24. 根据权利要求21所述的中继终端设备,其中,所述报告上报模 块具体用于:
    在不存在所述目标缓存状态报告对应的可用上行资源的情况下,向所述网络设备发送上行调度请求SR;
    在分配上行资源上向所述网络设备发送所述目标缓存状态报告;其中,所述分配上行资源为所述网络设备根据所述SR向所述中继终端设备分配的可用上行资源。
  25. 根据权利要求23或24所述的中继终端设备,其中,所述可用上行资源包括下列中的至少一项:
    新传输上行资源;
    未限制触发所述目标缓存状态报告的逻辑信道使用的上行资源。
  26. 根据权利要求21所述的中继终端设备,其中,所述数据信息包括所述待传输数据的数据量和所述待传输数据对应的业务信息,其中,所述业务信息包括所述待传输数据在副链路sidelink接口的逻辑信道组LCG信息或者所述待传输数据对应的业务优先级。
  27. 根据权利要求26所述的中继终端设备,其中,所述报告生成模块具体用于:
    根据预设映射关系,确定所述业务信息对应的目标LCG;其中,所述目标LCG为所述中继终端设备的上行链路接口的LCG;
    根据所述数据量,确定所述目标LCG对应的目标缓存数量;
    根据所述目标LCG和所述目标缓存数量,生成所述目标缓存状态报告。
  28. 根据权利要求27所述的中继终端设备,其中,所述预设映射关系根据网络配置或预设规则确定。
  29. 根据权利要求28所述的中继终端设备,其中,所述预设规则包括优先级相同规则。
  30. 根据权利要求21所述的中继终端设备,其中,所述目标缓存状态报告包括媒体接入控制子头MAC subheader,所述MAC subheader包括逻辑信道标识LCID域,其中:
    所述LCID域包括第一LCID值,所述第一LCID值用于指示所述目标 缓存状态报告为预发送报告类型;或,
    所述LCID域包括第二LCID值或第三LCID值,所述第二LCID值用于指示所述目标缓存状态报告为第一报告格式,所述第三LCID值用于指示所述目标缓存状态报告为截短的第一报告格式;或,
    所述LCID域包括第四LCID值、第五LCID值或第六LCID值,所述第四LCID值用于指示所述目标缓存状态报告为所述第一报告格式,所述第五LCID值用于指示所述目标缓存状态报告为所述截短的第一报告格式,所述第六LCID值用于指示所述目标缓存状态报告为第二报告格式;或,
    所述LCID域包括第七LCID值、第八LCID值、第九LCID值或第十LCID值,所述第七LCID值用于指示所述目标缓存状态报告为所述第一报告格式,所述第八LCID值用于指示所述目标缓存状态报告为所述截短的第一报告格式,所述第九LCID值用于指示所述目标缓存状态报告为所述第二报告格式,所述第十LCID值用于指示所述目标缓存状态报告为截短的第二报告格式;
    其中,所述第一报告格式对应的报告总长度大于或等于所述第二报告格式对应的报告总长度。
  31. 根据权利要求30所述的中继终端设备,其中,所述第一报告格式包括下列中的至少一项:
    LCG指示信号和LCG缓存状态;其中,所述LCG指示信号用于指示每个LCG是否具有待传输数据,所述LCG缓存状态用于指示具有待传输数据的LCG的缓存数量;
    至少两组报告信息;其中,每组所述报告信息包括LCG标识和LCG缓存状态,所述LCG标识用于指示具有待传输数据的LCG,所述LCG缓存状态用于指示所述LCG的缓存数量。
  32. 根据权利要求30所述的中继终端设备,其中,所述第二报告格式包括:
    一组报告信息;其中,所述报告信息包括LCG标识和LCG缓存状态,所述LCG标识用于指示具有待传输数据的LCG,所述LCG缓存状态 用于指示所述LCG的缓存数量。
  33. 根据权利要求30所述的中继终端设备,其中,所述目标缓存状态报告还包括长度指示域,所述长度指示域用于指示所述报告总长度。
  34. 根据权利要求21所述的中继终端设备,其中,所述报告上报模块具体用于:
    根据预设传输优先级规则,确定所述目标缓存状态报告的传输优先级;
    根据所述传输优先级,向所述网络设备上报所述目标缓存状态报告。
  35. 根据权利要求21所述的中继终端设备,还包括:
    配置接收模块,用于在确定所述待传输数据的所述数据信息之前,接收所述网络设备发送的报告配置信息;其中,所述报告配置信息包括所述目标缓存状态报告的开关配置;
    所述报告生成模块具体用于:在所述开关配置为开启的情况下,根据所述数据信息,生成所述目标缓存状态报告。
  36. 根据权利要求35所述的中继终端设备,其中,所述报告配置信息还包括所述目标缓存状态报告的生成配置;
    所述报告生成模块具体用于:根据所述数据信息和所述生成配置,生成所述目标缓存状态报告。
  37. 根据权利要求36所述的中继终端设备,其中,所述目标缓存状态报告的生成配置包括下列中的至少一项:
    目标缓存状态报告的报告格式;
    具有触发目标缓存状态报告的功能的LCG。
  38. 根据权利要求35所述的中继终端设备,其中,所述报告配置信息还包括所述目标缓存状态报告的上报配置;
    所述报告上报模块具体用于:根据所述上报配置,向所述网络设备上报所述目标缓存状态报告。
  39. 根据权利要求38所述的中继终端设备,其中,所述目标缓存状态报告的上报配置包括下列中的至少一项:
    是否支持目标缓存状态报告作为填充padding信息进行上报;
    目标缓存状态报告是否具有触发SR的功能;
    具有触发SR的功能的目标缓存状态报告所属的LCG;
    具有触发带有延迟定时器的SR的功能的目标缓存状态报告所属的LCG;
    目标缓存状态报告的延迟定时器的参数;
    目标缓存状态报告的重传定时器的参数;
    目标缓存状态报告的禁止定时器的参数。
  40. 根据权利要求35所述的中继终端设备,还包括:
    参数上报模块,用于在接收所述网络设备发送的所述报告配置信息之前,向所述网络设备上报报告能力参数,所述报告能力参数用于所述网络设备为所述中继终端设备配置所述报告配置信息。
  41. 一种中继终端设备,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至20中任一项所述的缓存状态上报方法的步骤。
  42. 一种计算机可读存储介质,所述计算机可读存储介质上存储计算机程序,所述计算机程序被处理器执行时实现如权利要求1至20中任一项所述的缓存状态上报方法的步骤。
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