WO2022236643A1 - 抢占缓存状态报告的生成方法及装置 - Google Patents

抢占缓存状态报告的生成方法及装置 Download PDF

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Publication number
WO2022236643A1
WO2022236643A1 PCT/CN2021/092909 CN2021092909W WO2022236643A1 WO 2022236643 A1 WO2022236643 A1 WO 2022236643A1 CN 2021092909 W CN2021092909 W CN 2021092909W WO 2022236643 A1 WO2022236643 A1 WO 2022236643A1
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Prior art keywords
iab
iab node
logical channel
channel group
status report
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PCT/CN2021/092909
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English (en)
French (fr)
Inventor
贾美艺
王昕�
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Fujitsu Ltd
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Fujitsu Ltd
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Priority to PCT/CN2021/092909 priority Critical patent/WO2022236643A1/zh
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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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • 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

Definitions

  • the present invention relates to the field of communication.
  • IAB Integrated access and backhaul
  • a relay node namely an IAB node (IAB-node)
  • IAB-node supports NR access and backhauling.
  • Backhaul can include a single hop or multiple hops.
  • the end point of the NR backhaul on the network side that is, the IAB donor (IAB-donor), indicates a gNB including additional functions supporting the IAB.
  • An IAB host may also be referred to as an IAB host node.
  • the IAB node supports the function of gNB-DU (Distributed Unit, distribution unit), that is, IAB-DU.
  • the IAB-DU terminates the NR access interface to the terminal device and the next-hop IAB node, and terminates the F1 protocol to the gNB-CU function on the IAB host.
  • an IAB node also supports a subset of terminal equipment functions (UE functions), namely IAB-MT, which includes, for example, a gNB-CU connected to an IAB host of a gNB-DU connected to another IAB node or an IAB host (Centralized Unit, centralized unit) and the physical layer, layer 2 (L2), RRC (Radio Resource Control, radio resource control) and NAS (Non-Access-Stratum, non-access stratum) functions connected to the core network.
  • UE functions terminal equipment functions
  • An IAB node is connected to an IAB host through one or more hops.
  • the IAB host is the root node
  • the adjacent nodes on the IAB-DU interface of the IAB node are called the descendant nodes of the IAB node, that is, the descendant IAB-node.
  • the adjacent node on the MT interface is called the parent node (parent node), that is, the parent IAB node (parent IAB-node).
  • the IAB node can reduce the uplink scheduling delay by sending a preemptive state buffer report (pre-emptive BSR, P-BSR) to its parent IAB node.
  • preemptive BSR preemptive BSR
  • An IAB node may be based on uplink (UL) grants it has provided to its child IAB nodes and/or its served end-devices or on status cache reports it has received from its child IAB nodes and/or its served end-devices (BSR) sends a Preemption Status Buffer Report (P-BSR). Wherein, the P-BSR carries the data expected to arrive at the IAB-MT of the IAB node, rather than the cached data.
  • UL uplink
  • BSR Serving End-devices
  • P-BSR Preemption Status Buffer Report
  • the MAC entity of the IAB-MT of the IAB node will: If the preemption buffer status report reporting process determines that at least one P-BSR has been triggered and has not been canceled, and if there is a P-BSR available for the new
  • the transmitted uplink shared channel (UL-SCH) resources and according to the logical channel priority (Logical Channel Priority, LCP) these UL-SCH resources can accommodate the preemption buffer status report MAC CE plus its subheader, indicating multiplexing and
  • the assembly process generates a preemptive cache status report MAC CE; otherwise, a separate request (Scheduling Request, SR) is triggered.
  • the MAC entity When a MAC PDU is sent, and this PDU includes the preemption buffer status report MAC CE, the MAC entity shall cancel all corresponding preemption buffer status reports that have been triggered.
  • embodiments of the present application provide a method and device for generating a preemption cache status report.
  • a method and device for generating a preemption cache status report By limiting the reporting of the logical channel group in the preemption cache status report and/or limiting the triggering of the preemption cache status report of the logical channel group, unnecessary reporting of the preemption cache status report can be avoided, thereby preventing some IAB nodes from reporting a larger amount of data than the actual one and/or, calculate the expected The amount of data arriving at the IAB-MT of the first IAB node, so that different manufacturers have a consistent understanding of the amount of data expected to arrive at the IAB-MT of the IAB node indicated in the preemption cache status report, and avoid reporting by some IAB nodes The value is larger than the actual amount of data, so as to avoid bad influence on the scheduling decision on the parent IAB node of the IAB node, and the possible consequences of competing among IAB nodes to request a larger UL grant as early as possible. Therefore, efficiency and fairness within the
  • an apparatus for generating a preemptive cache status report is applied to a first IAB node, and the apparatus includes: a first receiving unit configured to receive from the first The child IAB node of the IAB node or the terminal device served by the first IAB node receives the first cache status report, and/or the first providing unit is configured to provide the child IAB node or the terminal device with an uplink Road (UL) authorization; and a first restriction unit, which is used to limit the logical channel group in the report preemption buffer status report, and/or, a second restriction unit, which is used to limit the triggering of the preemption buffer status report of the logical channel group .
  • UL uplink Road
  • a device for generating a Preemption Buffer Status Report the device is applied to a first IAB node, and the device includes: a second receiving unit configured to Receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node, and/or, a second providing unit configured to provide the child IAB node or the The terminal device provides an uplink (UL) grant; and a first calculation unit configured to use the buffer size in the first buffer status report received from the child IAB node or the terminal device, and/or , a second calculation unit, which is used to calculate the IAB expected to arrive at the first IAB node according to the uplink shared channel (UL-SCH) resource size of the uplink grant provided to the child IAB node or the terminal device - Amount of data at MT.
  • UL-SCH uplink shared channel
  • a device for sending information for generating a preemptive cache status report the device is applied to the IAB host node of the first IAB node, and the device includes: a first sending unit , which is used to send information for generating a preemptive cache status report, where the information for generating a preemptive cache status report includes a parameter of the first timer, a first parameter, a second parameter, a third parameter, a first threshold, At least one of a second threshold, a first period, a second period, a third period, a fourth period, a fifth period, a first condition, a second condition, a third condition, and a fourth condition.
  • a network device is a first IAB node, and the network device includes the apparatus according to the first aspect or the second aspect of the embodiments of the present application.
  • a network device is provided, the network device is an IAB host node of the first IAB node, and the network device includes the apparatus according to the third aspect of the embodiments of the present application.
  • the communication system includes the network device according to the fourth aspect of the embodiments of the present application and/or the network device according to the fifth aspect of the embodiments of the present application network equipment.
  • a method for generating a Preemption Buffer Status Report is provided, the method is applied to a first IAB node, and the method includes: from the first IAB node The sub-IAB node or the terminal device served by the first IAB node receives the first cache status report, and/or provides an uplink (UL) authorization to the sub-IAB node or the terminal device; and restricts reporting to preempt the cache Logical channel group in the status report, and/or, restrict the triggering of the preemption buffer status report of the logical channel group
  • P-BSR Preemption Buffer Status Report
  • a method for generating a Preemption Buffer Status Report is provided, the method is applied to a first IAB node, and the method includes: from the first IAB node The sub-IAB node or the terminal device served by the first IAB node receives the first cache status report, and/or provides an uplink (UL) grant to the sub-IAB node or the terminal device; and according to the The child IAB node or the cache size in the first cache status report received by the terminal device calculates the amount of data expected to arrive at the IAB-MT of the first IAB node, and/or, according to the data provided to the The child IAB node or the uplink authorized uplink shared channel (UL-SCH) resource size of the terminal device calculates the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • P-BSR Preemption Buffer Status Report
  • a method for sending information for generating a preemptive cache status report the method is applied to the IAB host node of the first IAB node, and the method includes: sending the information for generating The information of the preemption cache status report, the information used to generate the preemption cache status report includes the parameters of the first timer, the first parameter, the second parameter, the third parameter, the first threshold, the second threshold, the first period, At least one of the second period, the third period, the fourth period, the fifth period, the first condition, the second condition, the third condition, and the fourth condition.
  • a computer-readable program wherein when the program is executed in the device for generating a preemptive cache status report or a network device, the program causes the preemptive
  • the cache status report generating device or network device executes the method for generating a preemptive cache status report described in the seventh aspect or the eighth aspect of the embodiments of the present invention.
  • a storage medium storing a computer-readable program, wherein the computer-readable program causes the device for generating a preemptive cache status report or the network device to execute the first The method for generating the preemptive cache status report described in the seventh aspect or the eighth aspect.
  • a computer-readable program wherein when the program is executed in the sending device or the network device for generating the information of the preemption cache status report, the The program enables the device for generating a preemptive cache status report or the network device to execute the method for sending information for generating a preemptive cache status report according to the ninth aspect of the embodiments of the present invention.
  • a storage medium storing a computer-readable program, wherein the computer-readable program causes a sending device or a network device used to generate the information of the preemption cache status report to execute this
  • the method for sending information for generating a preemptive cache status report according to the ninth aspect of the embodiment of the invention.
  • Fig. 1 is a schematic diagram of the overall structure of the IAB of the embodiment of the present application.
  • Fig. 2 is another schematic diagram of the overall structure of the IAB of the embodiment of the present application.
  • Fig. 3 is a schematic diagram of the protocol stack of the F1-U interface between IAB-DU and IAB-donor-CU;
  • Fig. 4 is a schematic diagram of the protocol stack of the F1-C interface between the IAB-DU and the IAB-donor-CU;
  • 5 is a schematic diagram of the protocol stack of the SRB between the IAB-MT and the IAB-donor-CU of the embodiment of the present application;
  • FIG. 6 is a schematic diagram of a single connection scenario in SA mode in an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a dual connectivity scenario in EN-DC mode according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a dual connectivity scenario in NR-DC mode according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of the status cache report reporting process of the embodiment of the present application.
  • FIG. 10A is a schematic diagram of the format of the short BSR MAC CE and the short truncated BSR MAC CE of the embodiment of the present application;
  • Fig. 10B is another schematic diagram of the format of the short BSR MAC CE and the short truncated BSR MAC CE of the embodiment of the present application;
  • FIG. 10C is another schematic diagram of the formats of the short BSR MAC CE and the short truncated BSR MAC CE according to the embodiment of the present application;
  • FIG. 10D is another schematic diagram of the format of the short BSR MAC CE and the short truncated BSR MAC CE of the embodiment of the present application;
  • FIG. 10E is another schematic diagram of the format of the short BSR MAC CE and the short truncated BSR MAC CE of the embodiment of the present application;
  • Figure 10F is a schematic diagram of the format of the long BSR, the long truncated BSR and the P-BSR MAC CE of the embodiment of the present application;
  • FIG. 11 is a schematic diagram of a method for generating a preemptive cache status report according to Embodiment 1 of the present application.
  • FIG. 12 is a schematic diagram of a method for limiting the triggering of a preemption buffer status report of a logical channel group according to Embodiment 1 of the present application;
  • FIG. 13 is a schematic diagram of a method for determining the amount of data expected to arrive at the IAB-MT of the first IAB node according to Embodiment 1 of the present application;
  • FIG. 14 is a schematic diagram of a method for implementing step 1302 in Embodiment 1 of the present application.
  • FIG. 15 is a schematic diagram of a method for implementing step 1402 in Embodiment 1 of the present application.
  • FIG. 16 is another schematic diagram of the method for implementing step 1402 in Embodiment 1 of the present application.
  • FIG. 17 is a schematic diagram of a method for implementing step 1303 in Embodiment 1 of the present application.
  • FIG. 18 is a schematic diagram of a method for implementing step 1703 in Embodiment 1 of the present application.
  • FIG. 19 is another schematic diagram of the method for implementing step 1703 in Embodiment 1 of the present application.
  • FIG. 20 is a schematic diagram of a method for generating a preemption cache status report according to Embodiment 2 of the present application.
  • FIG. 21 is a schematic diagram of a method for implementing step 2003 in Embodiment 2 of the present application.
  • FIG. 22 is a schematic diagram of a method for implementing step 2102 in Embodiment 2 of the present application.
  • FIG. 23 is another schematic diagram of the method for implementing step 2102 in Embodiment 2 of the present application.
  • FIG. 24 is a schematic diagram of a method for implementing step 2004 in Embodiment 2 of the present application.
  • FIG. 25 is a schematic diagram of a method for implementing step 2403 in Embodiment 2 of the present application.
  • FIG. 26 is another schematic diagram of the method for implementing step 2403 in Embodiment 2 of the present application.
  • FIG. 27 is a schematic diagram of a method for sending information used to generate a preemption cache status report according to Embodiment 3 of the present application;
  • FIG. 28 is a schematic diagram of a method for generating a preemption cache status report according to Embodiment 4 of the present application.
  • FIG. 29 is another schematic diagram of a method for generating a preemption cache status report according to Embodiment 4 of the present application.
  • FIG. 30 is a schematic diagram of a method for generating a preemption cache status report according to Embodiment 5 of the present application.
  • FIG. 31 is another schematic diagram of a method for generating a preemption cache status report according to Embodiment 5 of the present application.
  • FIG. 32 is a schematic diagram of a device for generating a preemption cache status report according to Embodiment 6 of the present application.
  • FIG. 33 is a schematic diagram of a device for generating a preemption cache status report according to Embodiment 7 of the present application.
  • FIG. 34 is a schematic diagram of a sending device for generating information of a preemption cache status report according to Embodiment 8 of the present application;
  • FIG. 35 is a schematic block diagram of a system configuration of a network device according to Embodiment 9 of the present invention.
  • FIG. 36 is a schematic block diagram of the system configuration of the network device according to Embodiment 10 of the present invention.
  • FIG. 37 is a schematic diagram of a communication system according to Embodiment 11 of the present application.
  • Fig. 38 is another schematic diagram of the communication system according to Embodiment 11 of the present application.
  • Fig. 39 is another schematic diagram of the communication system according to Embodiment 11 of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or time order of these elements, and these elements should not be referred to by these terms restricted.
  • the term “and/or” includes any and all combinations of one or more of the associated listed items.
  • the terms “comprising”, “including”, “having” and the like refer to the presence of stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
  • the term “communication network” or “wireless communication network” may refer to a network conforming to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), etc.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • LTE-A Long Term Evolution-A
  • LTE- Advanced Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to any stage of communication protocol, for example, it can include but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR, New Radio), etc., and/or other communication protocols that are currently known or will be developed in the future.
  • Network device refers to, for example, a device in a communication system that connects a user equipment to a communication network and provides services for the user equipment.
  • Network devices may include but are not limited to the following devices: “node” and/or “donor” under the IAB architecture, base station (BS, Base Station), access point (AP, Access Point), sending and receiving Point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller) and many more.
  • the base station may include but not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include Remote Radio Head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low-power node (such as femto, pico, etc.).
  • NodeB Node B
  • eNodeB or eNB evolved Node B
  • gNB 5G base station
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low-power node such as femto, pico, etc.
  • base station may include some or all of their functions, each base station may provide communication coverage for a particular geographic area.
  • the term "cell” can refer to a base station and/or its coverage area depending on the context in which the term is used.
  • the term "User Equipment” refers to, for example, a device that accesses a communication network through a network device and receives network services, and may also be called “Terminal Equipment” (TE, Terminal Equipment).
  • a terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, etc.
  • MS mobile station
  • SS subscriber station
  • AT Access Terminal
  • a station a station
  • the terminal equipment may include but not limited to the following equipment: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication equipment, handheld equipment, machine-type communication equipment, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
  • Cellular Phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem wireless communication equipment
  • handheld equipment machine-type communication equipment
  • laptop computer Cordless phones
  • Cordless phones smartphones, smart watches, digital cameras, and more.
  • the terminal device can also be a machine or device for monitoring or measurement, such as but not limited to: a machine type communication (MTC, Machine Type Communication) terminal, Vehicle communication terminal, device to device (D2D, Device to Device) terminal, machine to machine (M2M, Machine to Machine) terminal, etc.
  • MTC Machine Type Communication
  • Vehicle communication terminal device to device (D2D, Device to Device) terminal
  • M2M Machine to Machine
  • FIG. 1 is a schematic diagram of the overall architecture of the IAB in the embodiment of the present application.
  • the overall architecture of the IAB uses an independent (standalone, SA) mode
  • FIG. 2 is another schematic diagram of the overall architecture of the IAB in the embodiment of the present application.
  • the overall architecture of the IAB uses a dual connection (EN-DC) mode. In the dual connection mode, the IAB node is connected to a MeNB through E-UTRA, and the IAB host acts as the SgNB to terminate the X2-C.
  • EN-DC dual connection
  • Fig. 3 is a schematic diagram of the protocol stack of the F1-U interface between IAB-DU and IAB-donor-CU
  • Fig. 4 is a schematic diagram of the protocol stack of the F1-C interface between IAB-DU and IAB-donor-CU, in Fig. 3 and 4, F1-U and F1-C take 2-hop backhaul as an example for illustration.
  • F1-U and F1-C use the IP transport layer between IAB-DU and IAB-donor-CU, and in addition, F1-U and F1-C have security protection.
  • the IP layer is transmitted through the sublayer of the Backhaul Adaptation Protocol (BAP) to ensure multi-hop routing; the IP layer can also be used for non-F1 services, such as operation Maintenance management (Operation Administration and Maintenance, OAM) business.
  • BAP Backhaul Adaptation Protocol
  • OAM operation Maintenance management
  • BAP PDUs are transmitted by BH RLC channel (channel); on each BH link (BH link), multiple BH RLC channels can be configured , which allows traffic prioritization and QoS (Quality of Service) enforcement.
  • QoS Quality of Service
  • each IAB node and the BAP entity on the IAB-donor-DU perform BH RLC channel mapping of BAP PDUs.
  • FIG. 5 is a schematic diagram of the protocol stack of the SRB between the IAB-MT and the IAB-donor-CU according to the embodiment of the present application.
  • the IAB-MT also establishes one or more DRBs with the IAB-donor-CU, which can be used, for example, to transmit OAM services.
  • DRBs For SA mode, the establishment of DRBs is optional. These SRBs and DRBs are transmitted between this IAB-MT and its parent node via the Uu interface channel.
  • FIG. 6 is a schematic diagram of a single connection scenario in SA mode according to an embodiment of the present application. As shown in FIG. 6, in the SA mode, the first IAB node accesses the network through the IAB host node.
  • FIG. 7 is a schematic diagram of a dual connectivity scenario in EN-DC mode according to an embodiment of the present application.
  • the first IAB node can access the network through the IAB host node and the MeNB.
  • the backhauling service on the E-UTRA radio interface is not supported.
  • the method and device for generating the preemption cache status report in the embodiment of the present application are applicable to the SCG/SN protocol stack, such as SN MAC/ RLC or SCG MAC/RLC.
  • Fig. 8 is a schematic diagram of a dual connectivity scenario in NR-DC mode according to an embodiment of the present application.
  • the first IAB node in the NR-DC mode, can access the network through two parent IAB nodes, that is, the third IAB node and the fourth IAB node.
  • both the MCG/MN and the SCG/SN may support IAB, and if supported, the method and device for generating the preemption cache status report in the embodiment of the present application are applicable to the MCG/MN And SCG/SN protocol stack, for example including MN MAC/RLC or MCG MAC/RLC, and SN MAC/RLC or SCG MAC/RLC.
  • an IAB node can send a Status Buffer Report (BSR) or a Preemptive Status Buffer Report (P-BSR) to its parent IAB node.
  • BSR Status Buffer Report
  • P-BSR Preemptive Status Buffer Report
  • the status buffer report (BSR) is also called a regular BSR (regular BSR); what the BSR carries is cached data, and what the P-BSR carries is the data expected to arrive at the IAB-MT of the IAB node, rather than cached data.
  • FIG. 9 is a schematic diagram of a status cache report reporting process according to an embodiment of the present application.
  • the first IAB node receives a regular status cache report (regular BSR) from its sub-IAB node and/or terminal device served by it, and reports to the sub-IAB node and/or terminal device Provide uplink (UL) authorization, when the data from the child IAB node and/or terminal device arrives at the first IAB node, it can trigger and generate a regular status buffer report (regular BSR), and report the regular BSR to the first IAB node A parent IAB node of an IAB node;
  • regular BSR regular status cache report
  • UL uplink
  • the first IAB node receives regular status buffer reports (regular BSR) from its child IAB nodes and/or terminal devices served by it, and provides uplink (UL ) authorization, and then trigger and generate a Preemption Status Buffer Report (P-BSR), and report the P-BSR to the parent IAB node of the first IAB node; after that, the data from the child IAB node and/or terminal device arrives the IAB-MT of the first IAB node;
  • regular BSR regular status buffer reports
  • UL uplink
  • P-BSR Preemption Status Buffer Report
  • the first IAB node receives a regular status buffer report (regular BSR) from its child IAB nodes and/or terminal devices served by it, and can then trigger and generate a preemptive status buffer report (P-BSR), and The P-BSR reports to the parent IAB node of the first IAB node; then provides uplink (UL) authorization to the child IAB node and/or terminal equipment; then, data from the child IAB node and/or terminal equipment Reach the IAB-MT of the first IAB node.
  • regular BSR regular status buffer report
  • P-BSR preemptive status buffer report
  • Figure 10A is a schematic diagram of the format of the short BSR MAC CE and the short truncated BSR MAC CE of the embodiment of the present application
  • Figure 10B is another diagram of the format of the short BSR MAC CE and the short truncated BSR MAC CE of the embodiment of the present application
  • FIG. 10C is another schematic diagram of the format of the short BSR MAC CE and the short truncated BSR MAC CE of the embodiment of the present application
  • FIG. 10D is the short BSR MAC CE of the embodiment of the present application and the short truncated BSR MAC CE Another schematic diagram of the format
  • FIG. 10A is a schematic diagram of the format of the short BSR MAC CE and the short truncated BSR MAC CE of the embodiment of the present application
  • Figure 10B is another diagram of the format of the short BSR MAC CE and the short truncated BSR MAC CE of the embodiment of the present application
  • FIG. 10C
  • FIG. 10E is another schematic diagram of the format of the short BSR MAC CE and the short truncated BSR MAC CE of the embodiment of the present application
  • FIG. 10F is the long BSR of the embodiment of the present application, and the long truncated BSR and a schematic diagram of the format of the P-BSR MAC CE.
  • the length of the short BSR MAC CE and the short truncated BSR MAC CE is fixed, for example, including 1 byte or 2 bytes, identified by the LCG (LCG ID) field and the buffer size (Buffer Size) field, the LCG ID field is used to identify the logical channel group being reported buffer status, the length of the LCG ID field is 3 bits (bits); the Buffer Size field indicates the MAC PDU (that is, including the BSR MAC CE MAC PDU) is constructed (that is, after the LCP process), the total amount of data available for all logical channels of a logical channel group, and the amount of data is indicated by the number of bytes.
  • R represents a reserved bit.
  • the length of the Buffer Size field is 5 bits, and as shown in Figure 10C, Figure 10D and Figure 10E, the length of the Buffer Size field is 8 bits. As shown in Figure 10D and Figure 10E, the length of the LCG ID field and R is 1 byte.
  • the length of the long BSR, long truncated BSR and P-BSR MAC CE is variable and may include the LCGi field and the Buffer Size field.
  • the length of each Logical Channel Group (LCGi) field is 1 bit, the minimum value of i is 0, and the maximum value is, for example, 7 or 15 or 31 or 63 or 127 or 255, or a larger value.
  • the maximum value of i is 7, and 8 LCGi fields constitute 1 byte. When the maximum value of i is 15, 16 LCGi fields form 2 bytes. When the maximum value of i is 31, 32 LCGi fields make up 4 bytes.
  • the LCGi field indicates whether the Buffer Size field is present for logical channel group i. If the LCGi field is set to 1, it indicates that the Buffer Size field of logical channel group i is reported; if the LCGi field is set to 0, it indicates that the Buffer Size field of logical channel group i is not reported.
  • the LCGi field indicates whether logical channel group i has available data (data available). If the LCGi field is set to 1, it indicates that there is data available for logical channel group i; if the LCGi field is set to 0, it indicates that there is no data available for logical channel group i.
  • the Buffer Size field is used to identify the total amount of data available for all logical channels of a logical channel group after the MAC PDU has been constructed (that is, after the LCP process). Indicates the number of sections, the length of the Buffer Size field is 8 bits, and it is arranged in ascending order based on LCGi.
  • the Buffer Size field is used to identify the amount of data expected to arrive at the node IAB-MT. The data amount is indicated by the number of bytes.
  • the length of the Buffer Size field is 8 bits, and it is arranged in ascending order based on LCGi.
  • the above-mentioned format of the P-BSR MAC CE is only used as an example, and other formats and sizes may also be adopted.
  • An embodiment of the present application provides a method for generating a preemptive cache status report, which is used for a first IAB node.
  • FIG. 11 is a schematic diagram of a method for generating a preemption cache status report according to Embodiment 1 of the present application. As shown in Figure 11, the method includes:
  • Step 1101 Receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node, and/or,
  • Step 1102 providing an uplink (UL) grant to the child IAB node or the terminal device.
  • Step 1103 Limit the reporting of logical channel groups in the preemption buffer status report, and/or,
  • Step 1104 Limit the triggering of the preemption buffer status report of the logical channel group.
  • the method may include at least one of step 1101 and step 1102 and at least one of step 1103 and step 1104 .
  • step 1103 and step 1104 are included, the execution order of these two steps is not limited.
  • the method includes step 1101 and step 1102, or, the method includes step 1102; corresponding to step c) in FIG. 9, the method includes step 1101.
  • the first cache status report refers to a cache status report, that is, a regular BSR (regular BSR).
  • the method may include at least one of step 1103 and step 1104 .
  • step 1103 the first IAB node restricts the reporting of the logical channel group in the preemptive cache status report.
  • limiting the reporting of the logical channel groups in the preemption buffer status report may include: reporting the data volume of the logical channel groups meeting the first condition in the preemption buffer status report.
  • the preemption buffer state report the data volume of the logical channel group that does not satisfy the first condition is not reported.
  • the logical channel group meeting the first condition includes at least one of the following logical channel groups:
  • the IAB-MT of the first IAB node is expected to have data arrival and the data volume expected to arrive at the IAB-MT of the first IAB node is greater than the logical channel group of the first threshold;
  • the IAB-MT place of the first IAB node is expected to have data arrival and the change of the amount of data expected to arrive at the IAB-MT place of the first IAB node is greater than the logical channel group of the first parameter;
  • the IAB-MT of the first IAB node is expected to have data arrival and the change in the amount of data expected to arrive at the IAB-MT of the first IAB node during the first period is greater than the logical channel group of the second parameter;
  • the change in the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the logical channel group of the second parameter
  • the change in the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the logical channel group of the third parameter.
  • the data is expected to arrive at the IAB-MT of the first IAB node may also be referred to as “the data is expected to arrive at the first IAB node”; “the IAB-MT expected to arrive at the first IAB node”
  • the amount of data at the MT may also be referred to as "the amount of data expected to arrive at the first IAB node”.
  • the first parameter, the second parameter and the third parameter may be the same or different.
  • At least one of the first parameter, the second parameter and the third parameter may be configured by the IAB host node, which may be configured corresponding to the IAB node, or may be configured corresponding to the Logical Channel Group (LCG),
  • the value of at least one of the first parameter, the second parameter, and the third parameter can be an enumeration type, for example, including ⁇ 0, 16, 26, 71, 526, 29431, 81338368, infinity ⁇ , and the unit is byte ( byte); if an IAB node and/or LCG is not supported to report P-BSR, the value of the first parameter, second parameter or third parameter can be set to infinity; if P-BSR reporting is supported, but the first parameter is not configured
  • the first parameter, the second parameter or the third parameter the default value can be 0.
  • the change in the amount of data expected to arrive at the IAB-MT of the first IAB node refers to the absolute value of the difference between the amount of data before and after the change.
  • condition (3) for a logical channel group, when the absolute value of the difference between the amount of data before and after the change is greater than the first parameter when the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the first parameter, in The data volume of the logical channel group is reported in the preemption cache status report. That is, for condition (3), only the magnitude of the change is considered, not how long the change is caused.
  • the change in the amount of data expected to arrive at the IAB-MT of the first IAB node during the first period refers to the current data amount minus the data before the first period
  • the absolute value of the calculation result of the volume size that is to say, when the absolute value of the calculation result is greater than the second parameter, the data volume of the logical channel group is reported in the preemption cache status report.
  • the amount of data expected to arrive at the IAB-MT of the first IAB node after the last MAC PDU containing the preemption buffer status report is sent minus the MAC PDU sent
  • the data amount of the logical channel group is reported in the preemption cache status report.
  • Fig. 12 is a schematic diagram of the method for limiting the triggering of the preemption buffer status report of the logical channel group according to Embodiment 1 of the present application. As shown in Figure 12, the method includes at least one of the following steps:
  • Step 1201 Limit the triggering of the preemption buffer status report of the logical channel group based on the first timer
  • Step 1202 based on the amount of data expected to arrive at the IAB-MT of the first IAB node, limit the triggering of the preemption buffer status report of the logical channel group;
  • Step 1203 When the second condition is met, cancel the triggered preemption cache status report.
  • the execution order of steps 1201 to 1203 is not limited.
  • the method may include at least one of step 1201 to step 1203, that is, may include one or various combinations of step 1201, step 1202, and step 1203.
  • the method includes step 1201 and step 1203, or includes step 1202 and step 1203, or includes step 1201 and step 1202, or includes step 1201, step 1202, and step 1203.
  • step 1201, step 1202, and step 1203 will be specifically described.
  • step 1201 the triggering of the preemption cache status report of the logical channel group is limited based on the first timer.
  • the preemption buffer status report corresponding to the logical channel group corresponding to the first timer will not be triggered
  • the preemption cache status report corresponding to the logical channel group corresponding to the first timer will be triggered.
  • the preemption cache status report corresponding to the logical channel group corresponding to the first timer will be triggered.
  • the first timer may also be called a prohibition timer.
  • the parameter of the first timer is, for example, the value of the first timer, which may be configured by the IAB host node of the first IAB node, for example, configured by the RRC layer of the IAB host node.
  • the parameters of the first timer are configured corresponding to the logical channel group, that is, per LCG.
  • the parameter of the first timer is pBSR-ProhibitTimer.
  • the parameters of the first timer can also use other names.
  • the first timer when the third condition is met, the first timer is started;
  • the third condition includes at least one of the following conditions:
  • the preemption buffer status report corresponding to the logical channel group corresponding to the first timer is triggered;
  • the MAC entity of the IAB-MT of the first IAB node instructs the multiplexing assembly process to generate a preemptive cache status report MAC CE;
  • a PDCCH that is addressed by the C-RNTI and indicates an uplink grant for the new transmission is received;
  • a Preemption Buffer Status Report MAC CE is sent.
  • a MAC PDU including the Preemption Buffer Status Report MAC CE is sent.
  • the fourth condition includes at least one of the following conditions:
  • the MAC entity of the IAB-MT of the first IAB node restarts
  • the cell associated with the logical channel included in the logical channel group is a secondary cell or the associated cell does not include a special cell, deactivate the secondary cell;
  • step 1202 the triggering of the preemption buffer status report of the logical channel group is limited based on the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • the preemption buffer status report corresponding to the logical channel group will not be triggered; or,
  • the preemption buffer status report corresponding to the logical channel group will be triggered.
  • the second threshold may be configured by the IAB host node of the first IAB node, for example, configured by the RRC layer of the IAB host node.
  • the second threshold is configured corresponding to MT or logical channel group, that is, per MT or per LCG.
  • the second threshold is bufferSize-Threshold or dataVolume-Threshold. This second threshold can also take other names.
  • step 1203 when the second condition is met, cancel the triggered preemption cache status report.
  • the second condition includes at least one of the following conditions:
  • the parameters of the first timer and/or the second threshold are reconfigured
  • the IEs comprising the parameters of the first timer and/or the IEs comprising the second threshold are reconfigured
  • the parameters of the first timer and/or the second threshold are reconfigured to a larger value
  • Radio link failure (RLF) notification of Type-4 or Type-2 or Type-3 from the parent IAB node of the first IAB node;
  • the iab-Support is not configured in the SI of the DU belonging to the first IAB node or in the SI of the parent node of the first IAB node.
  • Type-4 wireless link failure notification is that the parent IAB node detects RLF and performs RLF recovery, such as initiating the RRC connection re-establishment process, and the RLF recovery, such as RRC re-establishment process failure;
  • Type-2 wireless link The meaning of the link failure notification is that the parent IAB node detects a wireless link failure or the parent IAB node detects a wireless link failure and tries to recover RLF, such as initiating the RRC connection reestablishment process;
  • the meaning of the Type-3 wireless link failure notification is that the parent The IAB node cancels or restores the wireless link failure.
  • step 1202 the logical channel group is limited based on the amount of data expected to arrive at the IAB-MT of the first IAB node Triggering of the preemption cache status report.
  • FIG. 13 is a schematic diagram of a method for determining the amount of data expected to arrive at the IAB-MT of the first IAB node according to Embodiment 1 of the present application. As shown in Figure 13, the method includes:
  • Step 1301 Determine the amount of data expected to arrive at the IAB-MT of the first IAB node based on the implementation, or,
  • Step 1302 According to the cache size in the first cache status report received from the child IAB node or the terminal device, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node, and/or,
  • Step 1303 Calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the size of the uplink shared channel (UL-SCH) resource of the uplink grant provided to the child IAB node or the terminal device.
  • UL-SCH uplink shared channel
  • step 1301 the amount of data expected to arrive at the IAB-MT of the first IAB node is determined based on implementation, and related technologies may be referred to.
  • the method may include at least one of step 1302 and step 1303.
  • step 1302 and step 1303 are included, the execution sequence of these two steps is not limited.
  • Step 1302 and step 1303 will be specifically described below.
  • step 1302 according to the buffer size in the first buffer status report received from the child IAB node or the terminal device, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • the cache size in the first cache status report received from the child IAB node or terminal device calculate the amount of data expected to arrive at the IAB-MT of the first IAB node, so that different manufacturers can preempt the cache status indicated in the cache status report
  • the understanding of the amount of data expected to arrive at the IAB-MT of the IAB node is consistent, and avoid some IAB nodes reporting a value larger than the actual data amount, thereby avoiding bad scheduling decisions on the parent IAB node of the IAB node impact, as well as possible consequences of IAB nodes competing to request a larger UL grant as early as possible; therefore, network-wide efficiency and fairness can be guaranteed.
  • a message from the child IAB node or the terminal is received.
  • the first cache status report of the device calculate the data expected to arrive at the IAB-MT of the first IAB node according to the cache size in the first cache status report received from the child IAB node or the terminal device amount, and/or, according to the uplink shared channel (UL-SCH) resource size of the uplink grant provided to the child IAB node or the terminal device, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node .
  • UL-SCH uplink shared channel
  • FIG. 14 is a schematic diagram of a method for implementing step 1302 according to Embodiment 1 of the present application. As shown in Figure 14, the method includes:
  • Step 1401 Evaluate the available data volume of a logical channel group according to the buffer size field in the first buffer status report.
  • Step 1402 According to the available data volume of the logical channel group, calculate the expected data volume of the logical channel group arriving at the IAB-MT of the first IAB node.
  • step 1401 evaluate the available data volume of a logical channel group according to the buffer size field in the first buffer status report, for example, using the index in the buffer size level table of a buffer size field in the first buffer status report The maximum value, minimum value or middle value of the corresponding buffer size value is used as the available data volume of the logical channel group.
  • the cached data volume will be 5446 bytes, if the minimum value is used, the cached data volume will be 3910 bytes, and if the intermediate value is used, the cached data volume will be 4678 bytes; for 8-bit buffer
  • the cached data volume will be 36 bytes, if the minimum value is used, the cached data volume will be 35 bytes, and if the intermediate value is used, the cached data volume will be 35 bytes or 36 bytes.
  • the MAC entity of the IAB-DU of the first IAB node or the MAC entity of the IAB-MT of the first IAB node evaluates the available data volume of a logical channel group according to the buffer size field in the first buffer status report.
  • step 1402 according to the available data volume of the logical channel group, calculate the expected data volume of the logical channel group arriving at the IAB-MT of the first IAB node, for example, subtract the available data volume of the logical channel group from The currently available data volume is obtained by obtaining the data volume expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • FIG. 15 is a schematic diagram of a method for implementing step 1402 according to Embodiment 1 of the present application. As shown in Figure 15, the method includes:
  • Step 1501 the RLC layer of the IAB-MT of the first IAB node indicates the currently available data volume to the MAC layer of the IAB-MT of the first IAB node;
  • Step 1502 The MAC entity of the IAB-MT of the first IAB node subtracts the currently available data volume from the available data volume of the logical channel group to obtain the IAB-MT expected to arrive at the first IAB node of the logical channel group amount of data at .
  • FIG. 16 is another schematic diagram of the method for implementing step 1402 according to Embodiment 1 of the present application. As shown in Figure 16, the method includes:
  • Step 1601 The MAC layer of the IAB-MT of the first IAB node indicates the available data volume of the logical channel group to the RLC layer of the IAB-MT of the first IAB node; in addition, it can also indicate the corresponding LCG ID at the same time;
  • Step 1602 The RLC layer of the IAB-MT of the first IAB node subtracts the available data volume of the logical channel group from the currently available data volume, and indicates the calculation result to the MAC layer of the IAB-MT of the first IAB node ; as well as
  • Step 1603 The MAC entity of the IAB-MT of the first IAB node takes the calculation result as the expected data volume of the logical channel group arriving at the IAB-MT of the first IAB node.
  • step 1302 based on the mapping relationship of the logical channel group, and according to the buffer size in the first buffer status report received from the sub-IAB node or the terminal device, the expected arrival of the The amount of data at the IAB-MT of the first IAB node.
  • mapping relationship of the logical channel group includes:
  • the logical channel group is 1-to-1 mapped; or,
  • mapping of the logical channel group is based on the implementation of the first IAB node; or,
  • the logical channel group mapping is based on hop count or CQI or 5QI or PDB logical channel group mapping.
  • the mapping relationship of the logical channel group refers to: the cache size of one or more logical channel groups (LCG) is provided in the received first cache status report, and the calculation is expected to arrive at the first IAB node
  • LCG logical channel groups
  • the purpose of the data volume at the IAB-MT is to indicate the data volume of an LCG in the P-BSR
  • the "logical channel group mapping relationship" is the LCG and P-BSR that provide the buffer size in the first buffer status report Indicates the mapping relationship of the LCG of the size of the data volume.
  • the 1-to-1 mapping of the logical channel group means that the LCG that provides the buffer size in the first buffer status report and the LCG that indicates the data size in the P-BSR are 1-to-1 mapped;
  • the realization of the mapping of the logical channel group based on the first IAB node means that the mapping relationship between the LCG that provides the cache size in the first cache status report and the LCG that indicates the data size in the P-BSR is based on the first IAB node determined by the realization of
  • mapping of the logical channel group is based on the number of hops means: the LCG with the same hop number with the buffer size provided in the first cache status report is mapped to the same LCG in the P-BSR;
  • mapping of the logical channel group is based on CQI means: the LCG with the same CQI with the buffer size provided in the first buffer status report is mapped to the same LCG in the P-BSR;
  • mapping of the logical channel group is based on 5QI means: the LCG with the same 5QI with the buffer size provided in the first buffer status report is mapped to the same LCG in the P-BSR;
  • the mapping of the logical channel group is based on the PDB means that the LCGs with the same PDB with the buffer size provided in the first buffer status report are mapped to the same LCG in the P-BSR.
  • step 1303 calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the uplink shared channel (UL-SCH) resource size provided to the sub-IAB node or the terminal equipment.
  • UL-SCH uplink shared channel
  • the amount of data expected to arrive at the IAB-MT of the first IAB node is calculated, so that different manufacturers can preempt the expected value indicated in the cache status report.
  • the understanding of the amount of data arriving at the IAB-MT of the IAB node is consistent, and avoid some IAB nodes reporting a value larger than the actual data amount, thereby avoiding bad influence on the scheduling decision on the parent IAB node of the IAB node.
  • efficient and fair within the network can be guaranteed.
  • the MAC PDU containing the preemption buffer status report will be established, or from the fifth period after sending the last uplink grant of a logical channel group to the sub-IAB node or the terminal equipment
  • uplink authorization according to the buffer size in the first buffer status report received from the child IAB node or the terminal device, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node, and /or, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the size of the uplink shared channel (UL-SCH) resource of the uplink grant provided to the child IAB node or the terminal device.
  • UL-SCH uplink shared channel
  • FIG. 17 is a schematic diagram of a method for implementing step 1303 according to Embodiment 1 of the present application. As shown in Figure 17, the method includes:
  • Step 1701 According to the uplink shared channel resources provided in an uplink grant, evaluate the total size of MAC SDUs and subheaders of a logical channel group that can be accommodated;
  • assessment results can be used as LCP results
  • Step 1702 According to the total size of MAC SDUs and subheaders of a logical channel group that can be accommodated, calculate the total amount of the total size provided in all uplink grants of the logical channel group;
  • Step 1703 Calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the total amount of the total size provided in all uplink grants of the logical channel group.
  • the MAC entity of the IAB-DU of the first IAB node or the MAC entity of the IAB-MT of the first IAB node evaluates the available uplink shared channel resources according to an uplink grant.
  • step 1702 for example, the total amount of the total size provided in all uplink grants of the logical channel group is subtracted from the currently available data volume to obtain the data expected to arrive at the IAB-MT of the first IAB node quantity.
  • FIG. 18 is a schematic diagram of a method for implementing step 1703 according to Embodiment 1 of the present application. As shown in Figure 18, the method includes:
  • Step 1801 the RLC layer of the IAB-MT of the first IAB node indicates the currently available data volume to the MAC layer of the IAB-MT of the first IAB node;
  • Step 1802 The MAC entity of the IAB-MT of the first IAB node subtracts the total amount of the total size provided in all uplink grants of the logical channel group from the currently available data volume to obtain the logical channel group The amount of data expected to arrive at the IAB-MT of the first IAB node.
  • FIG. 19 is another schematic diagram of the method for implementing step 1703 according to Embodiment 1 of the present application. As shown in Figure 19, the method includes:
  • Step 1901 The MAC layer of the IAB-MT of the first IAB node indicates the total amount of the total size provided in all uplink grants of the logical channel group to the RLC layer of the IAB-MT of the first IAB node; in addition , can also indicate the corresponding LCG ID at the same time;
  • Step 1902 The RLC layer of the IAB-MT of the first IAB node subtracts the current available data volume from the total amount provided in all uplink grants of the logical channel group, and indicates the calculation result to the the MAC layer of the IAB-MT of the first IAB node;
  • Step 1903 The MAC entity of the IAB-MT of the first IAB node takes the calculation result as the expected data volume of the logical channel group arriving at the IAB-MT of the first IAB node.
  • step 1303 based on the mapping relationship of the logical channel group, and according to the uplink shared channel (UL-SCH) resource size of the uplink authorization provided to the sub-IAB node or the terminal device, Calculate the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • UL-SCH uplink shared channel
  • mapping relationship of the logical channel group includes:
  • the logical channel group is 1-to-1 mapped; or,
  • mapping of the logical channel group is based on the implementation of the first IAB node; or,
  • the logical channel group mapping is based on hop count or CQI or 5QI or PDB logical channel group mapping.
  • the mapping relationship of the logical channel group refers to: the LCP process is to put the MAC PDUs generated on different logical channels (LC) on the allocated resources to generate transport blocks (TB), here according to the provided resources, Infer the size of the MAC PDU from different LCs that can be accommodated.
  • Different LCs have associated LCGs, and the purpose of calculating the amount of data expected to arrive at the IAB-MT of the first IAB node is to indicate the data of an LCG in the P-BSR
  • the "logical channel group mapping relationship" is the mapping relationship between the LCG associated with the LC and the LCG indicating the data volume in the P-BSR.
  • the 1:1 mapping of the logical channel group means: the LCG associated with the LC and the LCG indicating the data size in the P-BSR are 1:1 mapped;
  • the mapping of the logical channel group is based on the implementation of the first IAB node means: the mapping relationship between the LCG associated with the LC and the LCG indicating the amount of data in the P-BSR is determined based on the implementation of the first IAB node;
  • mapping of the logical channel group is based on the number of hops means: LCGs with the same number of hops associated with the LC are mapped to the same LCG in the P-BSR;
  • mapping of the logical channel group is based on CQI means: LCGs associated with LCs with the same CQI are mapped to the same LCG in the P-BSR;
  • mapping of the logical channel group is based on 5QI means: LCGs associated with LCs with the same 5QI are mapped to the same LCG in the P-BSR;
  • mapping of the logical channel group is based on PDB means that LCGs associated with LCs with the same PDB are mapped to the same LCG in the P-BSR.
  • it may also be based on the buffer size in the first cache status report received from the sub-IAB node or the terminal device and the uplink authorization provided to the sub-IAB node or the terminal device.
  • Shared channel (UL-SCH) resource size calculate the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • evaluate the available data volume of a logical channel group according to the buffer size field in the first buffer status report, and evaluate the MAC of a logical channel group that can be accommodated according to the uplink shared channel resources provided in an uplink grant The total size of SDUs and their sub-headers, add the available data volume of the logical channel group to the total size of the MAC SDUs of the logical channel group and their sub-headers, and then subtract the current available data volume to obtain the logical channel group The amount of data expected to arrive at the IAB-MT of the first IAB node.
  • the currently available data volume refers to the current available data volume of the RLC layer.
  • the first IAB node determines the currently available data volume according to at least one of the following:
  • RLC AM RLC data PDUs awaiting retransmission
  • the first IAB node evaluates the size of the status PDU to be sent in the next transmission opportunity as part of the currently available data volume.
  • step 1302 after calculating the amount of data expected to arrive at the IAB-MT of the first IAB node according to step 1302 and/or step 1303, when the data expected to arrive at the IAB-MT of the first IAB node When the quantity is negative, it can be considered as 0.
  • the logical channel group is regarded as one of the following:
  • a proportion is configured by the IAB host node of the first IAB node, and the data volume of this proportion belongs only to the data volume of MCG, or the data volume of this proportion belongs to the data volume of SCG only, or the data volume of this proportion belongs to both MCG and SCG amount of data;
  • the hop count as an example, for example, if the channel mapped to the MCG egress has the largest hop count, it belongs to the MCG, otherwise it belongs to the SCG;
  • the channel mapped to the MCG egress has the smallest associated hop count, it belongs to the MCG, otherwise it belongs to the SCG;
  • the channel mapped to the exit of the MCG has the largest associated hop count, it belongs to both the MCG and the SCG, otherwise it belongs to the SCG;
  • the channel mapped to the MCG egress has the largest associated hop count, it belongs to MCG, otherwise it belongs to both MCG and SCG;
  • the channel mapped to the exit of the MCG has the smallest associated hop count, it belongs to both the MCG and the SCG, otherwise it belongs to the SCG;
  • the channel mapped to the egress of the MCG has the smallest associated hop count, it belongs to the MCG; otherwise, it belongs to both the MCG and the SCG.
  • CQI for example, if the CQI of the channel mapped to the MCG exit is the largest, it belongs to MCG, otherwise it belongs to SCG;
  • the channel mapped to the MCG egress has the smallest CQI, it belongs to the MCG, otherwise it belongs to the SCG;
  • the channel mapped to the MCG egress has the largest CQI, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the CQI of the channel mapped to the exit of the MCG is the largest, it belongs to the MCG, otherwise it belongs to both the MCG and the SCG;
  • the channel mapped to the MCG egress has the smallest CQI, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the channel mapped to the egress of the MCG has the smallest CQI, it belongs to the MCG; otherwise, it belongs to both the MCG and the SCG.
  • 5QI for example, if the channel mapped to the MCG exit has the largest 5QI, it belongs to MCG, otherwise it belongs to SCG;
  • the 5QI of the channel mapped to the exit of the MCG is the smallest, it belongs to the MCG, otherwise it belongs to the SCG;
  • the 5QI of the channel mapped to the MCG exit is the largest, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the channel mapped to the exit of the MCG has the largest 5QI, it belongs to the MCG, otherwise it belongs to both the MCG and the SCG;
  • the channel mapped to the MCG exit has the smallest 5QI, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the channel mapped to the egress of the MCG has the smallest 5QI, it belongs to the MCG, otherwise it belongs to both the MCG and the SCG.
  • PDB for example, if the channel mapped to the MCG egress has the largest PDB, it belongs to MCG, otherwise it belongs to SCG;
  • the channel mapped to the MCG egress has the smallest PDB, it belongs to the MCG, otherwise it belongs to the SCG;
  • the channel mapped to the MCG egress has the largest PDB, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the channel mapped to the MCG egress has the largest PDB, it belongs to MCG, otherwise it belongs to both MCG and SCG;
  • the channel mapped to the MCG egress has the smallest PDB, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the channel mapped to the egress of the MCG has the smallest PDB, it belongs to the MCG; otherwise, it belongs to both the MCG and the SCG.
  • An embodiment of the present application provides a method for generating a preemptive cache status report, which is applied to a first IAB node.
  • FIG. 20 is a schematic diagram of a method for generating a preemption cache status report according to Embodiment 2 of the present application. As shown in Figure 20, the method includes:
  • Step 2001 Receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node, and/or,
  • Step 2002 providing an uplink (UL) grant to the child IAB node or the terminal device.
  • Step 2003 According to the cache size in the first cache status report received from the child IAB node or the terminal device, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node, and/or,
  • Step 2004 Calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the size of the uplink shared channel (UL-SCH) resource of the uplink grant provided to the child IAB node or the terminal device.
  • UL-SCH uplink shared channel
  • the expected arrival at the first IAB node is calculated
  • the amount of data at the IAB-MT so that different manufacturers have a consistent understanding of the amount of data that is expected to arrive at the IAB-MT of the IAB node indicated in the preemption cache status report, and avoid some IAB nodes reporting more than the actual data amount A large value, so as to avoid a bad influence on the scheduling decision on the parent IAB node of the IAB node, and the possible consequences of competing among IAB nodes to request a larger UL grant as early as possible. Therefore, efficiency and fairness within the network can be guaranteed.
  • the method may include at least one of step 2001 and step 2002 and at least one of step 2003 and step 2004.
  • step 2003 and step 2004 are included, the execution sequence of these two steps is not limited.
  • the method includes step 2001 and step 2002, or, the method includes step 2002; corresponding to step c) in FIG. 9, the method includes step 2001.
  • the method may include steps 2003 and /or step 2004;
  • the method may include step 2003 and/or step 2004;
  • the method may include step 2003 and/or step 2004.
  • Step 2003 and Step 2004 may be the same as Step 1302 and Step 1303 in Embodiment 1.
  • step 2003 according to the cache size in the first cache status report received from the child IAB node or the terminal device, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • the cache size in the first cache status report received from the child IAB node or terminal device calculate the amount of data expected to arrive at the IAB-MT of the first IAB node, so that different manufacturers can preempt the cache status indicated in the cache status report
  • the understanding of the amount of data expected to arrive at the IAB-MT of the IAB node is consistent, and avoid some IAB nodes reporting a value larger than the actual data amount, thereby avoiding bad scheduling decisions on the parent IAB node of the IAB node impact, as well as possible consequences of IAB nodes competing to request a larger UL grant as early as possible; therefore, network-wide efficiency and fairness can be guaranteed.
  • the first cache status report of the terminal device calculates the expected arrival at the IAB-MT of the first IAB node The amount of data, and/or, according to the uplink shared channel (UL-SCH) resource size of the uplink authorization provided to the child IAB node or the terminal device, calculate the data expected to arrive at the IAB-MT of the first IAB node quantity.
  • UL-SCH uplink shared channel
  • FIG. 21 is a schematic diagram of a method for implementing step 2003 according to Embodiment 2 of the present application. As shown in Figure 21, the method includes:
  • Step 2101 Evaluate the available data volume of a logical channel group according to the buffer size field in the first buffer status report.
  • Step 2102 According to the available data volume of the logical channel group, calculate the expected data volume of the logical channel group arriving at the IAB-MT of the first IAB node.
  • step 2101 evaluate the available data volume of a logical channel group according to the buffer size field in the first buffer status report, for example, using the index in the buffer size level table of a buffer size field in the first buffer status report The maximum value, minimum value or middle value of the corresponding buffer size value is used as the available data volume of the logical channel group.
  • the cached data volume will be 5446 bytes, if the minimum value is used, the cached data volume will be 3910 bytes, and if the intermediate value is used, the cached data volume will be 4678 bytes; for 8-bit buffer
  • the cached data volume will be 36 bytes, if the minimum value is used, the cached data volume will be 35 bytes, and if the intermediate value is used, the cached data volume will be 35 bytes or 36 bytes.
  • the specific value to be used can be configured or defined or indicated according to the actual situation.
  • the MAC entity of the IAB-DU of the first IAB node or the MAC entity of the IAB-MT of the first IAB node evaluates the available data volume of a logical channel group according to the buffer size field in the first buffer status report.
  • step 2102 according to the available data volume of the logical channel group, calculate the expected data volume of the logical channel group arriving at the IAB-MT of the first IAB node, for example, subtract the available data volume of the logical channel group from The currently available data volume is obtained by obtaining the data volume expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • FIG. 22 is a schematic diagram of a method for implementing step 2102 according to Embodiment 2 of the present application. As shown in Figure 22, the method includes:
  • Step 2201 the RLC layer of the IAB-MT of the first IAB node indicates the currently available data volume to the MAC layer of the IAB-MT of the first IAB node;
  • Step 2202 The MAC entity of the IAB-MT of the first IAB node subtracts the currently available data volume from the available data volume of the logical channel group to obtain the IAB-MT expected to reach the first IAB node of the logical channel group amount of data at .
  • FIG. 23 is another schematic diagram of the method for implementing step 2102 according to Embodiment 2 of the present application. As shown in Figure 23, the method includes:
  • Step 2301 The MAC layer of the IAB-MT of the first IAB node indicates the available data volume of the logical channel group to the RLC layer of the IAB-MT of the first IAB node; in addition, it can also indicate the corresponding LCG ID at the same time;
  • Step 2302 The RLC layer of the IAB-MT of the first IAB node subtracts the currently available data amount from the available data amount of the logical channel group, and indicates the calculation result to the MAC layer of the IAB-MT of the first IAB node ;as well as
  • Step 2303 The MAC entity of the IAB-MT of the first IAB node takes the calculation result as the expected data volume of the logical channel group arriving at the IAB-MT of the first IAB node.
  • step 2003 based on the mapping relationship of logical channel groups, and according to the buffer size in the first buffer status report received from the sub-IAB node or the terminal device, the expected arrival of the The amount of data at the IAB-MT of the first IAB node.
  • mapping relationship of the logical channel group includes:
  • the logical channel group is 1-to-1 mapped; or,
  • mapping of the logical channel group is based on the implementation of the first IAB node; or,
  • the logical channel group mapping is based on hop count or CQI or 5QI or PDB logical channel group mapping.
  • the mapping relationship of the logical channel group refers to: the cache size of one or more logical channel groups (LCG) is provided in the received first cache status report, and the calculation is expected to arrive at the first IAB node
  • LCG logical channel groups
  • the purpose of the data volume at the IAB-MT is to indicate the data volume of an LCG in the P-BSR
  • the "logical channel group mapping relationship" is the LCG and P-BSR that provide the buffer size in the first buffer status report Indicates the mapping relationship of the LCG of the size of the data volume.
  • the 1-to-1 mapping of the logical channel group means that the LCG that provides the buffer size in the first buffer status report and the LCG that indicates the data size in the P-BSR are 1-to-1 mapped;
  • the realization of the mapping of the logical channel group based on the first IAB node means that the mapping relationship between the LCG that provides the cache size in the first cache status report and the LCG that indicates the data size in the P-BSR is based on the first IAB node determined by the realization of
  • mapping of the logical channel group is based on the number of hops means: the LCG with the same hop number with the buffer size provided in the first cache status report is mapped to the same LCG in the P-BSR;
  • mapping of the logical channel group is based on CQI means: the LCG with the same CQI with the buffer size provided in the first buffer status report is mapped to the same LCG in the P-BSR;
  • mapping of the logical channel group is based on 5QI means: the LCG with the same 5QI with the buffer size provided in the first buffer status report is mapped to the same LCG in the P-BSR;
  • the mapping of the logical channel group is based on the PDB means that the LCGs with the same PDB with the buffer size provided in the first buffer status report are mapped to the same LCG in the P-BSR.
  • step 2004 the amount of data expected to arrive at the IAB-MT of the first IAB node is calculated according to the size of the uplink shared channel (UL-SCH) resource of the uplink grant provided to the child IAB node or the terminal device.
  • UL-SCH uplink shared channel
  • the amount of data expected to arrive at the IAB-MT of the first IAB node is calculated, so that different manufacturers can preempt the expected value indicated in the buffer status report.
  • the understanding of the amount of data arriving at the IAB-MT of the IAB node is consistent, and avoid some IAB nodes reporting a value larger than the actual data amount, thereby avoiding bad influence on the scheduling decision on the parent IAB node of the IAB node.
  • efficiency and fairness within the network can be guaranteed.
  • the MAC PDU containing the preemption buffer status report will be established, or from the fifth period after sending the last uplink grant of a logical channel group to the sub-IAB node or the terminal equipment
  • uplink authorization according to the buffer size in the first buffer status report received from the child IAB node or the terminal device, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node, and /or, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the size of the uplink shared channel (UL-SCH) resource of the uplink grant provided to the child IAB node or the terminal device.
  • UL-SCH uplink shared channel
  • FIG. 24 is a schematic diagram of a method for implementing step 2004 according to Embodiment 2 of the present application. As shown in Figure 24, the method includes:
  • Step 2401 According to the uplink shared channel resources provided in an uplink grant, evaluate the total size of MAC SDUs and subheaders of a logical channel group that can be accommodated;
  • assessment results can be used as LCP results
  • Step 2402 According to the total size of MAC SDUs and sub-headers of a logical channel group that can be accommodated, calculate the total amount of the total size provided in all uplink grants of the logical channel group;
  • Step 2403 Calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the total amount of the total size provided in all uplink grants of the logical channel group.
  • the MAC entity of the IAB-DU of the first IAB node or the MAC entity of the IAB-MT of the first IAB node evaluates the available uplink shared channel resources according to an uplink grant.
  • step 2402 for example, the total amount of the total size provided in all uplink grants of the logical channel group is subtracted from the currently available data amount to obtain the data expected to arrive at the IAB-MT of the first IAB node quantity.
  • FIG. 25 is a schematic diagram of a method for implementing step 2403 according to Embodiment 2 of the present application. As shown in Figure 25, the method includes:
  • Step 2501 the RLC layer of the IAB-MT of the first IAB node indicates the currently available data volume to the MAC layer of the IAB-MT of the first IAB node;
  • Step 2502 The MAC entity of the IAB-MT of the first IAB node subtracts the currently available data volume from the total size provided in all uplink grants of the logical channel group to obtain the logical channel group The amount of data expected to arrive at the IAB-MT of the first IAB node.
  • FIG. 26 is another schematic diagram of the method for implementing step 2403 according to Embodiment 2 of the present application. As shown in Figure 26, the method includes:
  • Step 2601 The MAC layer of the IAB-MT of the first IAB node indicates the total amount of the total size provided in all uplink grants of the logical channel group to the RLC layer of the IAB-MT of the first IAB node; in addition , can also indicate the corresponding LCG ID at the same time;
  • Step 2602 The RLC layer of the IAB-MT of the first IAB node subtracts the currently available data volume from the total size provided in all uplink grants of the logical channel group, and indicates the calculation result to the the MAC layer of the IAB-MT of the first IAB node;
  • Step 2603 The MAC entity of the IAB-MT of the first IAB node takes the calculation result as the expected data volume of the logical channel group arriving at the IAB-MT of the first IAB node.
  • step 2004, based on the mapping relationship of the logical channel group, and according to the uplink shared channel (UL-SCH) resource size provided to the sub-IAB node or the terminal device for the uplink authorization, Calculate the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • UL-SCH uplink shared channel
  • mapping relationship of the logical channel group includes:
  • the logical channel group is 1-to-1 mapped; or,
  • mapping of the logical channel group is based on the implementation of the first IAB node; or,
  • the logical channel group mapping is based on hop count or CQI or 5QI or PDB logical channel group mapping.
  • the mapping relationship of the logical channel group refers to: the LCP process is to put the MAC PDUs generated on different logical channels (LC) on the allocated resources to generate transport blocks (TB), here according to the provided resources, Infer the size of the MAC PDU from different LCs that can be accommodated.
  • Different LCs have associated LCGs, and the purpose of calculating the amount of data expected to arrive at the IAB-MT of the first IAB node is to indicate the data of an LCG in the P-BSR
  • the "logical channel group mapping relationship" is the mapping relationship between the LCG associated with the LC and the LCG indicating the data volume in the P-BSR.
  • the 1:1 mapping of the logical channel group means: the LCG associated with the LC and the LCG indicating the data size in the P-BSR are 1:1 mapped;
  • the mapping of the logical channel group is based on the implementation of the first IAB node means: the mapping relationship between the LCG associated with the LC and the LCG indicating the amount of data in the P-BSR is determined based on the implementation of the first IAB node;
  • mapping of the logical channel group is based on the number of hops means: LCGs with the same number of hops associated with the LC are mapped to the same LCG in the P-BSR;
  • mapping of the logical channel group is based on CQI means: LCGs associated with LCs with the same CQI are mapped to the same LCG in the P-BSR;
  • mapping of the logical channel group is based on 5QI means: LCGs associated with LCs with the same 5QI are mapped to the same LCG in the P-BSR;
  • mapping of the logical channel group is based on PDB means that LCGs associated with LCs with the same PDB are mapped to the same LCG in the P-BSR.
  • it may also be based on the buffer size in the first cache status report received from the sub-IAB node or the terminal device and the uplink authorization provided to the sub-IAB node or the terminal device.
  • Shared channel (UL-SCH) resource size calculate the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • evaluate the available data volume of a logical channel group according to the buffer size field in the first buffer status report, and evaluate the MAC of a logical channel group that can be accommodated according to the uplink shared channel resources provided in an uplink grant The total size of SDUs and their sub-headers, add the available data volume of the logical channel group to the total size of the MAC SDUs of the logical channel group and their sub-headers, and then subtract the current available data volume to obtain the logical channel group The amount of data expected to arrive at the IAB-MT of the first IAB node.
  • the currently available data volume refers to the current available data volume of the RLC layer.
  • the first IAB node determines the currently available data volume according to at least one of the following:
  • RLC AM RLC data PDUs awaiting retransmission
  • the first IAB node evaluates the size of the status PDU to be sent in the next transmission opportunity as part of the currently available data volume.
  • the logical channel group is regarded as one of the following:
  • a proportion is configured by the IAB host node of the first IAB node, and the data volume of this proportion belongs only to the data volume of MCG, or the data volume of this proportion belongs to the data volume of SCG only, or the data volume of this proportion belongs to both MCG and SCG amount of data;
  • the hop count as an example, for example, if the channel mapped to the MCG egress has the largest hop count, it belongs to the MCG, otherwise it belongs to the SCG;
  • the channel mapped to the MCG egress has the smallest associated hop count, it belongs to the MCG, otherwise it belongs to the SCG;
  • the channel mapped to the exit of the MCG has the largest associated hop count, it belongs to both the MCG and the SCG, otherwise it belongs to the SCG;
  • the channel mapped to the MCG egress has the largest associated hop count, it belongs to MCG, otherwise it belongs to both MCG and SCG;
  • the channel mapped to the exit of the MCG has the smallest associated hop count, it belongs to both the MCG and the SCG, otherwise it belongs to the SCG;
  • the channel mapped to the egress of the MCG has the smallest associated hop count, it belongs to the MCG; otherwise, it belongs to both the MCG and the SCG.
  • CQI for example, if the channel mapped to the MCG exit has the largest CQI, it belongs to MCG, otherwise it belongs to SCG;
  • the channel mapped to the MCG egress has the smallest CQI, it belongs to the MCG, otherwise it belongs to the SCG;
  • the channel mapped to the MCG egress has the largest CQI, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the CQI of the channel mapped to the exit of the MCG is the largest, it belongs to the MCG, otherwise it belongs to both the MCG and the SCG;
  • the channel mapped to the MCG egress has the smallest CQI, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the channel mapped to the egress of the MCG has the smallest CQI, it belongs to the MCG; otherwise, it belongs to both the MCG and the SCG.
  • 5QI for example, if the channel mapped to the MCG exit has the largest 5QI, it belongs to MCG, otherwise it belongs to SCG;
  • the 5QI of the channel mapped to the exit of the MCG is the smallest, it belongs to the MCG, otherwise it belongs to the SCG;
  • the 5QI of the channel mapped to the MCG exit is the largest, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the 5QI of the channel mapped to the MCG outlet is the largest, it belongs to MCG, otherwise it belongs to MCG and SCG at the same time;
  • the channel mapped to the MCG exit has the smallest 5QI, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the channel mapped to the egress of the MCG has the smallest 5QI, it belongs to the MCG, otherwise it belongs to both the MCG and the SCG.
  • PDB for example, if the channel mapped to the MCG egress has the largest PDB, it belongs to MCG, otherwise it belongs to SCG;
  • the channel mapped to the MCG egress has the smallest PDB, it belongs to the MCG, otherwise it belongs to the SCG;
  • the channel mapped to the MCG egress has the largest PDB, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the channel mapped to the MCG egress has the largest PDB, it belongs to MCG, otherwise it belongs to both MCG and SCG;
  • the channel mapped to the MCG egress has the smallest PDB, it belongs to both MCG and SCG, otherwise it belongs to SCG;
  • the channel mapped to the egress of the MCG has the smallest PDB, it belongs to the MCG; otherwise, it belongs to both the MCG and the SCG.
  • the expected arrival time is calculated according to the buffer size in the first buffer status report received from the sub-IAB node or the terminal device and/or the UL-SCH resource size of the UL authorization provided to the sub-IAB node or the terminal device.
  • the amount of data at the IAB-MT of the first IAB node enables different manufacturers to have a consistent understanding of the amount of data expected to arrive at the IAB-MT of the IAB node indicated in the preemption cache status report, and avoids some IAB nodes reporting more than
  • the value of the actual amount of data is large, so as to avoid bad influence on the scheduling decision on the parent IAB node of the IAB node, and the possible consequences of competing among IAB nodes to request a larger UL grant as early as possible. Therefore, efficiency and fairness within the network can be guaranteed.
  • An embodiment of the present application provides a method for sending information for generating a preemption cache status report, and the method is applied to the IAB host node of the first IAB node, which corresponds to the methods described in Embodiment 1 and Embodiment 2.
  • FIG. 27 is a schematic diagram of a method for sending information for generating a preemption cache status report according to Embodiment 3 of the present application. As shown in Figure 27, the method includes:
  • Step 2701 Send information for generating a preemption cache status report.
  • the information used to generate the preemption cache status report includes the parameters of the first timer, the first parameter, the second parameter, the third parameter, the first threshold, the second threshold, the first period, the second period, the third At least one of the period, the fourth period, the fifth period, the first condition, the second condition, the third condition, and the fourth condition.
  • the parameters of the first timer, the first parameter, the second parameter, the third parameter, the first threshold, the second threshold, the first period, the second period, the third period, the fourth period the parameters of the first timer, the first parameter, the second parameter, the third parameter, the first threshold, the second threshold, the first period, the second period, the third period, the fourth period, the For the specific meanings of the five periods, the first condition, the second condition, the third condition and the fourth condition, reference may be made to the relevant records in Embodiments 1 and 2, and will not be repeated here.
  • the parameters of the first timer correspond to logical channel groups.
  • the parameter of the first timer is pBSR-ProhibitTimer.
  • the second threshold corresponds to an MT or a logical channel group.
  • the second threshold is bufferSize-Threshold or dataVolume-Threshold.
  • the information for generating the preemption cache status report is sent by the RRC layer of the IAB host node.
  • the first IAB node can generate a preemptive cache status report based on at least a part of the information, so as to achieve the implementation described in Embodiment 1 and/or Embodiment 2. technical effect.
  • An embodiment of the present application provides a method for generating a preemptive cache status report, which is used for a first IAB node, a sub-IAB node of the first IAB node and/or a terminal device served by the sub-IAB node, and the first IAB node The parent IAB node. This method corresponds to that described in Example 1.
  • FIG. 28 is a schematic diagram of a method for generating a preemption cache status report according to Embodiment 4 of the present application. As shown in Figure 28, the method includes:
  • Step 2801 Receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node;
  • Step 2802 the first IAB node provides an uplink (UL) grant to the child IAB node or the terminal device;
  • Step 2803 The first IAB node restricts the reporting of the logical channel group in the preemption cache status report
  • Step 2804 the first IAB node restricts the triggering of the preemption cache status report of the logical channel group
  • Step 2805 After the limitation of step 2803 and/or step 2804, for at least one logical channel group, the first IAB node may trigger a preemption cache status report, and may not trigger;
  • Step 2806 If a preemption buffer status report is triggered for at least one logical channel group in step 2805, and if the triggered preemption buffer status report is not canceled for the logical channel group if there is an uplink share available for new upload channel (UL-SCH) resources and according to the Logical Channel Priority (LCP) these UL-SCH resources can accommodate the preemption buffer status report MAC CE plus its sub-header, the MAC entity of the IAB-MT of the first IAB node indicates multiple Generate a preemption buffer status report MAC CE with the assembly process; if for this logical channel group, the triggered preemption buffer status report is canceled, or there is no uplink shared channel (UL-SCH) resource available for new transmission and according to the logic Channel priority (LCP) these UL-SCH resources can accommodate the preemption buffer status report MAC CE plus its subheader, then do not instruct the multiplexing and assembly process to generate the preemption buffer status report MAC CE; and
  • Step 2807 The first IAB node sends the preemption cache status report MAC CE to its parent IAB node.
  • the method may include at least one of step 2803 and step 2804, and when step 2803 and step 2804 are included, the execution order of the two is not limited.
  • FIG. 29 is another schematic diagram of a method for generating a preemption cache status report according to Embodiment 4 of the present application. As shown in Figure 29, the method includes:
  • Step 2901 Receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node;
  • Step 2902 The first IAB node restricts the reporting of the logical channel group in the preemption cache status report
  • Step 2903 the first IAB node restricts the triggering of the preemption cache status report of the logical channel group
  • Step 2904 After being limited by step 2902 and/or step 2903, for at least one logical channel group, the first IAB node may or may not trigger a preemption buffer status report;
  • Step 2905 If a preemption buffer status report is triggered for at least one logical channel group in step 2904, and if the triggered preemption buffer status report is not canceled for the logical channel group if there is an uplink share available for new transmission channel (UL-SCH) resources and according to the Logical Channel Priority (LCP) these UL-SCH resources can accommodate the preemption buffer status report MAC CE plus its sub-header, the MAC entity of the IAB-MT of the first IAB node indicates multiple Generate a preemption buffer status report MAC CE with the assembly process; if for this logical channel group, the triggered preemption buffer status report is canceled, or there is no uplink shared channel (UL-SCH) resource available for new transmission and according to the logic Channel priority (LCP) these UL-SCH resources can accommodate the preemption buffer status report MAC CE plus its subheader, then do not instruct the multiplexing and assembly process to generate the preemption buffer status report MAC CE; and
  • Step 2906 the first IAB node sends the preemptive cache status report MAC CE to its parent IAB node;
  • Step 2907 The first IAB node provides an uplink (UL) grant to the child IAB node or the terminal device.
  • UL uplink
  • the method may include at least one of step 2902 and step 2903, and when step 2902 and step 2903 are included, the execution order of the two is not limited.
  • An embodiment of the present application provides a method for generating a preemptive cache status report, which is used for a first IAB node, a sub-IAB node of the first IAB node and/or a terminal device served by the sub-IAB node, and the first IAB node The parent IAB node. This method corresponds to that described in Example 2.
  • FIG. 30 is a schematic diagram of a method for generating a preemption cache status report according to Embodiment 5 of the present application. As shown in Figure 30, the method includes:
  • Step 3001 Receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node;
  • Step 3002 the first IAB node provides an uplink (UL) grant to the child IAB node or the terminal device;
  • Step 3003 According to the buffer size in the first buffer status report received from the child IAB node or the terminal device, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node; and/or,
  • Step 3004 Calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the size of the uplink shared channel (UL-SCH) resource of the uplink authorization provided to the child IAB node or the terminal device;
  • UL-SCH uplink shared channel
  • Step 3005 According to the expected data volume calculated in step 3003 and/or step 3004, the first IAB node triggers a preemption cache status report;
  • Step 3006 If the triggered preemption buffer status report is not cancelled, if there are uplink shared channel (UL-SCH) resources available for new transmission and these UL-SCH resources can accommodate preemption buffer status according to Logical Channel Priority (LCP)
  • UL-SCH uplink shared channel
  • LCP Logical Channel Priority
  • Step 3007 The first IAB node sends the preemption cache status report MAC CE to its parent IAB node.
  • the method may include at least one of step 3003 and step 3004, and when step 3003 and step 3004 are included, the execution order of the two is not limited.
  • step 3003 and/or step 3004 may be performed first, then step 3005 is performed, and then step 3006 is performed;
  • FIG. 31 is another schematic diagram of a method for generating a preemption cache status report according to Embodiment 5 of the present application. As shown in Figure 31, the method includes:
  • Step 3101 Receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node;
  • Step 3102 According to the cache size in the first cache status report received from the child IAB node or the terminal device, calculate the amount of data expected to arrive at the IAB-MT of the first IAB node;
  • Step 3103 According to the calculated expected data volume, the first IAB node triggers a preemption cache status report
  • Step 3104 If the triggered preemption buffer status report is not cancelled, if there are uplink shared channel (UL-SCH) resources available for new transmission and these UL-SCH resources can accommodate preemption buffer status according to Logical Channel Priority (LCP)
  • UL-SCH uplink shared channel
  • LCP Logical Channel Priority
  • Step 3105 the first IAB node sends the preemptive cache status report MAC CE to its parent IAB node;
  • Step 3106 The first IAB node provides an uplink (UL) grant to the child IAB node or the terminal device.
  • UL uplink
  • step 3102 may be executed first, then step 3103 is executed, and then step 3104 is executed;
  • the expected arrival time is calculated according to the buffer size in the first buffer status report received from the sub-IAB node or the terminal device and/or the UL-SCH resource size of the UL authorization provided to the sub-IAB node or the terminal device.
  • the amount of data at the IAB-MT of the first IAB node enables different manufacturers to have a consistent understanding of the amount of data expected to arrive at the IAB-MT of the IAB node indicated in the preemption cache status report, and avoids some IAB nodes reporting more than
  • the value of the actual amount of data is large, so as to avoid bad influence on the scheduling decision on the parent IAB node of the IAB node, and the possible consequences of competing among IAB nodes to request a larger UL grant as early as possible. Therefore, efficiency and fairness within the network can be guaranteed.
  • An embodiment of the present application provides a device for generating a preemptive cache status report, which is used for a first IAB node.
  • the device corresponds to the method described in Example 1.
  • FIG. 32 is a schematic diagram of an apparatus for generating a preemption cache status report according to Embodiment 6 of the present application. As shown in Figure 32, the device 3200 includes:
  • the first receiving unit 3201 is configured to receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node, and/or,
  • a first providing unit 3202 configured to provide an uplink (UL) grant to the child IAB node or the terminal device;
  • the first limiting unit 3203 is configured to limit the reporting of logical channel groups in the preemption buffer status report, and/or,
  • the second limiting unit 3204 is configured to limit the triggering of the preemption buffer status report of the logical channel group.
  • the first limiting unit is configured to report the data volume of the logical channel group meeting the first condition in the preemption cache status report
  • the logical channel group meeting the first condition includes at least one of the following logical channel groups:
  • the IAB-MT of the first IAB node is expected to have data arriving and the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the logical channel group of the first threshold;
  • the IAB-MT of the first IAB node is expected to have data arriving and the change in the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the logical channel group of the first parameter;
  • the IAB-MT of the first IAB node is expected to have data arrival and the change in the amount of data expected to arrive at the IAB-MT of the first IAB node during the first period is greater than the logical channel group of the second parameter;
  • the change in the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the logical channel group of the third parameter.
  • the second restriction unit includes at least one of the following:
  • a third limiting unit configured to limit the triggering of the preemption buffer status report of the logical channel group based on the first timer
  • a fourth limiting unit which is used to limit the triggering of the preemption buffer status report of the logical channel group based on the amount of data expected to arrive at the IAB-MT of the first IAB node;
  • the fifth restriction unit is used for canceling the triggered preemption cache status report when the second condition is met.
  • the third restriction unit is configured to, when the first timer is running, the preemption cache status report corresponding to the logical channel group corresponding to the first timer will not be triggered; or , at least or only when the first timer is not running or not configured, the preemption cache status report corresponding to the logical channel group corresponding to the first timer will be triggered.
  • the parameters of the first timer are configured by the IAB host node of the first IAB node.
  • the parameters of the first timer correspond to logical channel groups.
  • the parameter of the first timer is pBSR-ProhibitTimer.
  • the first timer when the third condition is met, the first timer is started;
  • the third condition includes at least one of the following conditions:
  • the preemption buffer status report corresponding to the logical channel group corresponding to the first timer is triggered;
  • the MAC entity of the IAB-MT of the first IAB node instructs the multiplexing assembly process to generate a preemptive cache status report MAC CE;
  • a PDCCH that is addressed by the C-RNTI and indicates an uplink grant for the new transmission is received;
  • a Preemption Buffer Status Report MAC CE is sent.
  • a MAC PDU including the Preemption Buffer Status Report MAC CE is sent.
  • the fourth condition includes at least one of the following conditions:
  • the MAC entity of the IAB-MT of the first IAB node restarts
  • the cell associated with the logical channel included in the logical channel group is a secondary cell or the associated cell does not include a special cell, deactivate the secondary cell;
  • the fourth limiting unit is used to, when the data amount of a logical channel group is less than the second threshold, the preemption cache status report corresponding to the logical channel group will not be triggered; or, At least or only when the data volume of a logical channel group is greater than or equal to the second threshold, the preemption buffer status report corresponding to the logical channel group will be triggered.
  • the second threshold is configured by the IAB host node of the first IAB node.
  • the second threshold corresponds to an MT or a logical channel group.
  • the second threshold is bufferSize-Threshold or dataVolume-Threshold.
  • the second condition includes at least one of the following conditions:
  • the parameters of the first timer and/or the second threshold are reconfigured
  • the parameters of the first timer and/or the second threshold are reconfigured to a larger value
  • the iab-Support is not configured in the SI of the DU belonging to the first IAB node or in the SI of the parent node of the first IAB node.
  • the device may also include:
  • a first determining unit configured to determine the amount of data expected to arrive at the IAB-MT of the first IAB node based on implementation, or,
  • a first calculation unit which is used to calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the cache size in the first cache status report received from the child IAB node or the terminal device, and /or,
  • the second calculation unit is used to calculate the IAB-MT expected to arrive at the first IAB node according to the uplink shared channel (UL-SCH) resource size of the uplink authorization provided to the sub-IAB node or the terminal device The amount of data.
  • UL-SCH uplink shared channel
  • the first calculation unit includes:
  • a third calculation unit which is used to estimate the available data volume of a logical channel group according to the buffer size field in the first buffer status report;
  • a fourth calculation unit configured to calculate the expected data volume of the logical channel group arriving at the IAB-MT of the first IAB node according to the available data volume of the logical channel group.
  • the third calculation unit uses the maximum value, minimum value or intermediate value of the cache size value corresponding to the index in the cache size level table of a cache size field in the first cache status report as the The amount of data available for the logical channel group.
  • the fourth computing unit subtracts the available data volume of the logical channel group from the currently available data volume to obtain the data volume expected to arrive at the IAB-MT of the first IAB node of the logical channel group .
  • the MAC entity of the IAB-DU of the first IAB node as the third calculation unit or the MAC entity of the IAB-MT of the first IAB node is based on the cache size in the first cache status report Domain evaluates the amount of data available for a logical channel group.
  • the fourth computing unit includes a first indicating unit and a fifth computing unit
  • the RLC layer of the IAB-MT of the first IAB node as the first indication unit indicates the currently available data volume to the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node subtracts the currently available data volume from the available data volume of the logical channel group to obtain the expected arrival of the logical channel group at the first IAB node The amount of data at the IAB-MT.
  • the fourth computing unit includes a second indicating unit, a sixth computing unit and a seventh computing unit,
  • the MAC layer of the IAB-MT of the first IAB node as the second indication unit indicates the available data volume of the logical channel group to the RLC layer of the IAB-MT of the first IAB node;
  • the RLC layer of the IAB-MT of the first IAB node subtracts the currently available data volume from the available data volume of the logical channel group, and indicates the calculation result to the IAB-MT of the first IAB node.
  • MAC layer of MT
  • the MAC entity of the IAB-MT of the first IAB node takes the calculation result as the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • the second calculation unit includes:
  • An eighth calculation unit which is used to evaluate the total size of MAC SDUs and subheaders of a logical channel group that can be accommodated according to the uplink shared channel resources provided in an uplink grant;
  • a ninth calculation unit which is used to calculate the total amount of the total size provided in all uplink grants of the logical channel group according to the total size of the MAC SDUs and subheaders of the logical channel group that can be accommodated;
  • a tenth calculation unit configured to calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the total amount of the total size provided in all uplink grants of the logical channel group.
  • the tenth calculation unit subtracts the total amount of the total size provided in all uplink grants of the logical channel group from the currently available data amount to obtain the IAB expected to arrive at the first IAB node - Amount of data at MT.
  • the MAC entity of the IAB-DU of the first IAB node or the MAC entity of the IAB-MT of the first IAB node serving as the eighth computing unit is based on the uplink sharing provided in an uplink grant.
  • Channel resource which evaluates the total size of MAC SDUs and subheaders that can accommodate a logical channel group.
  • the tenth computing unit includes a third indicating unit and an eleventh computing unit
  • the RLC layer of the IAB-MT of the first IAB node as the third indication unit indicates the currently available data volume to the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node subtracts the currently available data volume from the total size provided in all uplink grants of the logical channel group to obtain the The amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • the tenth computing unit includes a fourth indicating unit, a twelfth computing unit, and a thirteenth computing unit,
  • the MAC layer of the IAB-MT of the first IAB node as the fourth indication unit indicates to the RLC layer of the IAB-MT of the first IAB node the total size provided in all uplink grants of the logical channel group total amount;
  • the RLC layer of the IAB-MT of the first IAB node as the twelfth calculation unit subtracts the total amount of the total size provided in all uplink grants of the logical channel group from the currently available data volume, and calculates The result is indicated to the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node takes the calculation result as the data amount expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • the first calculation unit calculates the expected arrival time of the first buffer status report based on the mapping relationship of the logical channel group and according to the buffer size in the first buffer status report received from the sub-IAB node or the terminal device. the amount of data at the IAB-MT of an IAB node, and/or,
  • the second calculation unit is based on the mapping relationship of the logical channel group, and according to the uplink shared channel (UL-SCH) resource size of the uplink authorization provided to the sub-IAB node or the terminal equipment, calculates the expected arrival at the first IAB node The amount of data at the IAB-MT.
  • UL-SCH uplink shared channel
  • mapping relationship of the logical channel group includes:
  • the logical channel group is 1-to-1 mapped; or,
  • mapping of the logical channel group is based on the implementation of the first IAB node; or,
  • the logical channel group mapping is based on hop count or CQI or 5QI or PDB logical channel group mapping.
  • the first calculation unit receives a second period from the second period before the establishment of the MAC PDU containing the preemption buffer status report, or a third period after sending the last MAC PDU containing the preemption buffer status report.
  • the first cache status report from the sub-IAB node or the terminal device calculate the expected arrival of the first buffer status report according to the buffer size in the first cache status report received from the sub-IAB node or the terminal device. The amount of data at the IAB-MT of the IAB node.
  • the second calculation unit is in the fourth period before the MAC PDU containing the preemption buffer status report is about to be established, or in the fifth period after sending the last uplink grant of a logical channel group
  • the device may also include:
  • the second determining unit is configured to regard the amount of data expected to arrive at the IAB-MT of the first IAB node as 0 when it is a negative number.
  • the logical channel group is regarded as one of the following:
  • a proportion is configured by the IAB host node of the first IAB node, and the data volume of this proportion belongs only to the data volume of MCG, or the data volume of this proportion belongs to the data volume of SCG only, or the data volume of this proportion belongs to both MCG and SCG the amount of data;
  • the implementation of the functions of the above-mentioned units can refer to the implementation method of the relevant steps in Embodiment 1, and the description will not be repeated here.
  • An embodiment of the present application provides a device for generating a preemptive cache status report, which is used for a first IAB node.
  • the device corresponds to the method described in Example 1.
  • FIG. 33 is a schematic diagram of an apparatus for generating a preemption cache status report according to Embodiment 7 of the present application. As shown in Figure 33, the device 3300 includes:
  • the second receiving unit 3301 is configured to receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node, and/or,
  • a second providing unit 3302 configured to provide an uplink (UL) grant to the child IAB node or the terminal device;
  • the first calculation unit 3303 is configured to calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the cache size in the first cache status report received from the child IAB node or the terminal device; and / or,
  • the second calculation unit 3304 is configured to calculate the IAB-MT expected to arrive at the first IAB node according to the uplink shared channel (UL-SCH) resource size provided to the sub-IAB node or the terminal device. amount of data.
  • UL-SCH uplink shared channel
  • the first calculation unit 3303 and the second calculation unit 3304 may be the same as the first calculation unit and the second calculation unit in Embodiment 6, and the specific content may refer to the description in Embodiment 7, here The description will not be repeated.
  • the expected arrival time is calculated according to the buffer size in the first buffer status report received from the sub-IAB node or the terminal device and/or the UL-SCH resource size of the UL authorization provided to the sub-IAB node or the terminal device.
  • the amount of data at the IAB-MT of the first IAB node enables different manufacturers to have a consistent understanding of the amount of data expected to arrive at the IAB-MT of the IAB node indicated in the preemption cache status report, and avoids some IAB nodes reporting more than
  • the value of the actual amount of data is large, so as to avoid bad influence on the scheduling decision on the parent IAB node of the IAB node, and the possible consequences of competing among IAB nodes to request a larger UL grant as early as possible. Therefore, efficiency and fairness within the network can be guaranteed.
  • An embodiment of the present application provides an apparatus for sending information for generating a preemption cache status report, and the apparatus is applied to an IAB host node of a first IAB node.
  • the device corresponds to the method described in Example 3.
  • Fig. 34 is a schematic diagram of an apparatus for sending information for generating a preemptive cache status report according to Embodiment 8 of the present application. As shown in Fig. 34 , the apparatus 3400 includes:
  • a first sending unit 3401 configured to send information for generating a preemption cache status report
  • the information used to generate the preemption cache status report includes parameters of the first timer, a first parameter, a second parameter, a third parameter, a first threshold, a second threshold, a first period, a second period, a third period, At least one of the fourth period, the fifth period, the first condition, the second condition, the third condition, and the fourth condition.
  • the parameters of the first timer correspond to logical channel groups.
  • the parameter of the first timer is pBSR-ProhibitTimer.
  • the second threshold corresponds to an MT or a logical channel group.
  • the second threshold is bufferSize-Threshold or dataVolume-Threshold.
  • the information for generating the preemption cache status report is sent by the RRC layer of the IAB host node as the first sending unit.
  • the implementation of the functions of the above-mentioned units may refer to the implementation methods of the relevant steps in Embodiment 3 and Embodiment 1, and will not be repeated here.
  • the first IAB node can generate a preemption cache status report based on at least a part of the information, so as to achieve the implementation described in Embodiment 6 and/or Embodiment 7 technical effect.
  • An embodiment of the present invention provides a network device, and the network device includes the sending device for generating information of a preemption cache status report as described in Embodiment 6 or Embodiment 7.
  • Fig. 35 is a schematic block diagram of the system configuration of the network device according to Embodiment 9 of the present invention.
  • a network device 3500 may include: a processor (processor) 3510 and a memory 3520 ; the memory 3520 is coupled to the processor 3510 .
  • the memory 3520 can store various data; in addition, it also stores an information processing program 3530, and executes the program 3530 under the control of the processor 3510 to receive various information sent by the terminal equipment and send various information to the terminal equipment .
  • the function of the device for generating the preemption cache status report may be integrated into the processor 3510 .
  • the processor 3510 may be configured to: receive a first cache status report from a sub-IAB node of the first IAB node or a terminal device served by the first IAB node, and/or send the sub-IAB node Or the terminal device provides an uplink (UL) grant; and restricts reporting of the logical channel group in the preemption buffer status report, and/or restricts the triggering of the preemption buffer status report of the logical channel group.
  • UL uplink
  • the processor 3510 may be configured to: receive a first cache status report from a sub-IAB node of the first IAB node or a terminal device served by the first IAB node, and/or send the sub-IAB node or the terminal device provides an uplink (UL) grant; and calculates the IAB-MT expected to arrive at the first IAB node according to the buffer size in the first buffer status report received from the sub-IAB node or the terminal device and/or, according to the uplink shared channel (UL-SCH) resource size of the uplink authorization provided to the child IAB node or the terminal device, calculate the IAB-MT expected to arrive at the first IAB node amount of data.
  • UL-SCH uplink shared channel
  • the device for generating the preemptive cache status report may be configured separately from the processor 3510, for example, the device for generating the preemptive cache status report may be configured as a chip connected to the processor 3510, and realized through the control of the processor 3510 The function of the generator of the preemption cache status report.
  • the network device 3500 may further include: a transceiver 3540 and an antenna 3550 ; wherein, the functions of the above components are similar to those of the prior art, and will not be repeated here. It should be noted that the network device 3500 does not necessarily include all the components shown in FIG. 35 ; in addition, the network device 3500 may also include components not shown in FIG. 35 , and reference may be made to the prior art.
  • An embodiment of the present invention provides a network device, and the network device includes the device for sending information for generating a preemption cache status report as described in Embodiment 8.
  • Fig. 36 is a schematic block diagram of the system configuration of the network device according to the tenth embodiment of the present invention.
  • a network device 3600 may include: a processor (processor) 3610 and a memory 3620 ; the memory 3620 is coupled to the processor 3610 .
  • the memory 3620 can store various data; in addition, it also stores an information processing program 3630, and executes the program 3630 under the control of the processor 3610 to receive various information sent by the terminal equipment and send various information to the terminal equipment .
  • the function of the sending means for generating the information of the preemption cache status report may be integrated into the processor 3610 .
  • the processor 3610 may be configured to: send information for generating a preemption cache status report,
  • the information used to generate the preemption cache status report includes parameters of the first timer, a first parameter, a second parameter, a third parameter, a first threshold, a second threshold, a first period, a second period, a third period, At least one of the fourth period, the fifth period, the first condition, the second condition, the third condition, and the fourth condition.
  • the information sending device for generating the preemption cache status report may be configured separately from the processor 3610, for example, the device for generating the preemption cache status report may be configured as a chip connected to the processor 3610, through the processor 3610 to implement the function of the device for generating the preemptive cache status report.
  • the network device 3600 may further include: a transceiver 3640 and an antenna 3650 , etc.; where the functions of the above components are similar to those of the prior art, and will not be repeated here. It should be noted that the network device 3600 does not necessarily include all the components shown in FIG. 36 ; in addition, the network device 3600 may also include components not shown in FIG. 36 , and reference may be made to the prior art.
  • the first IAB node can generate a preemption cache status report based on at least a part of the information, so as to achieve the implementation described in Embodiment 6 and/or Embodiment 7 technical effect.
  • An embodiment of the present invention provides a communication system, where the communication system includes the network device described in Embodiment 9 and/or the network device described in Embodiment 10.
  • Fig. 37 is a schematic diagram of a communication system according to Embodiment 11 of the present application.
  • the communication system 3700 includes: a first IAB node 3701, a child IAB node 3702 of the first IAB node, a terminal device 3703 served by the first IAB node, a parent IAB node 3704 of the first IAB node, and an IAB host node 3705.
  • the first IAB node 3701 may be the network device described in Embodiment 9, and/or the IAB host node 3705 may be the network device described in Embodiment 10.
  • Fig. 38 is another schematic diagram of the communication system according to Embodiment 11 of the present application.
  • the communication system 3800 adopts the EN-DC architecture, and the communication system 3800 includes: a first IAB node 3801, a child IAB node 3802 of the first IAB node, a terminal device 3803 served by the first IAB node, and an IAB host Node 3804 and MeNB3805.
  • the first IAB node 3801 can access the network through the IAB host node 3804 and the MeNB 3805.
  • the first IAB node 3801 may be the network device described in Embodiment 9, and/or the IAB host node 3804 may be the network device described in Embodiment 10.
  • Fig. 39 is another schematic diagram of the communication system according to Embodiment 11 of the present application.
  • the communication system 3900 adopts the NR-DC architecture, and the communication system 3900 includes: a first IAB node 3901, a child IAB node 3902 of the first IAB node, a terminal device 3903 served by the first IAB node, a first The first parent IAB node 3904, the second parent IAB node 3905, and the IAB host node 3906 of the IAB node.
  • the first IAB node 3901 can access the network through the first parent IAB node 3904 and the second parent IAB node 3905 .
  • the first IAB node 3901 may be the network device described in Embodiment 9, and/or the IAB host node 3906 may be the network device described in Embodiment 10.
  • the above is an example of the IAB architecture to which the method and device for generating the preemption cache status report according to the embodiments of the present application are applied, and it can also be applied to communication system structures under various other IAB architectures.
  • the above devices and methods of the present invention can be implemented by hardware, or by combining hardware and software.
  • the present invention relates to such a computer-readable program that, when the program is executed by a logic component, enables the logic component to realize the above-mentioned device or constituent component, or enables the logic component to realize the above-mentioned various methods or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like.
  • the present invention also relates to a storage medium for storing the above program, such as hard disk, magnetic disk, optical disk, DVD, flash memory and the like.
  • the method/device described in conjunction with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams shown in FIG. 32 and/or one or more combinations of the functional block diagrams may correspond to each software module or each hardware module of the computer program flow.
  • These software modules may respectively correspond to the steps shown in FIG. 11 .
  • These hardware modules for example, can be realized by solidifying these software modules by using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor such that the processor can read information from, and write information to, the storage medium, or it can be an integral part of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or large-capacity flash memory device.
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described in FIG. 32 can be implemented as a general-purpose processor, a digital signal processor ( DSP), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
  • DSP digital signal processor
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described in FIG. A processor, one or more microprocessors in communication with a DSP, or any other such configuration.
  • a first receiving unit configured to receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node, and/or, a first providing unit, configured to provide the child IAB node or the terminal device providing an uplink (UL) grant;
  • the first limiting unit is configured to limit the reporting of the logical channel group in the preemption buffer status report, and/or the second limiting unit is configured to limit the triggering of the preemption buffer status report of the logical channel group.
  • the logical channel group meeting the first condition includes at least one of the following logical channel groups:
  • the IAB-MT of the first IAB node is expected to have data arriving and the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than a first threshold logical channel group;
  • the IAB-MT of the first IAB node is expected to have data arriving and the change in the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the logical channel group of the first parameter;
  • the IAB-MT place of the first IAB node is expected to have data arrival and the change in the amount of data expected to arrive at the IAB-MT place of the first IAB node during the first period is greater than the logical channel group of the second parameter;
  • the IAB-MT of the first IAB node is expected to have data arrival and after the last MAC PDU containing the preemptive buffer status report is sent, the change in the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the third logical channel group of parameters;
  • the change in the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the logical channel group of the third parameter.
  • a third limiting unit configured to limit the triggering of the preemption buffer status report of the logical channel group based on the first timer
  • a fourth limiting unit configured to limit the triggering of the preemption buffer status report of the logical channel group based on the amount of data expected to arrive at the IAB-MT of the first IAB node;
  • the fifth restriction unit is used for canceling the triggered preemption cache status report when the second condition is met.
  • the preemption cache status report corresponding to the logical channel group corresponding to the first timer will not be triggered; or,
  • the preemption cache status report corresponding to the logical channel group corresponding to the first timer will be triggered.
  • the parameters of the first timer are configured by the IAB host node of the first IAB node.
  • the parameters of the first timer correspond to logical channel groups.
  • the parameter of the first timer is pBSR-ProhibitTimer.
  • the third condition includes at least one of the following conditions:
  • the preemption buffer status report corresponding to the logical channel group corresponding to the first timer is triggered;
  • the MAC entity of the IAB-MT of the first IAB node instructs the multiplexing assembly process to generate a preemption cache status report MAC CE;
  • a PDCCH that is addressed by the C-RNTI and indicates an uplink grant for the new transmission is received;
  • a Preemption Buffer Status Report MAC CE is sent.
  • a MAC PDU including the Preemption Buffer Status Report MAC CE is sent.
  • the fourth condition includes at least one of the following conditions:
  • the MAC entity of the IAB-MT of the first IAB node restarts
  • the cell associated with the logical channel included in the logical channel group is a secondary cell or the associated cell does not include a special cell, deactivate the secondary cell;
  • the preemption buffer status report corresponding to the logical channel group will not be triggered; or,
  • the preemption buffer status report corresponding to the logical channel group will be triggered.
  • the second threshold is configured by the IAB host node of the first IAB node.
  • the second threshold corresponds to an MT or a logical channel group.
  • the second threshold is bufferSize-Threshold or dataVolume-Threshold.
  • the parameters of the first timer and/or the second threshold are reconfigured
  • the parameters of the first timer and/or the second threshold are reconfigured to a larger value
  • iab-Support is not configured in the SI of the DU belonging to the first IAB node or in the SI of the parent node of the first IAB node.
  • a first determining unit configured to determine the amount of data expected to arrive at the IAB-MT of said first IAB node based on implementation, or,
  • a first calculation unit configured to calculate the expected arrival at the IAB-MT of the first IAB node according to the cache size in the first cache status report received from the child IAB node or the terminal device amount of data, and/or,
  • the second calculation unit is configured to calculate the IAB-SCH expected to arrive at the first IAB node according to the uplink shared channel (UL-SCH) resource size of the uplink grant provided to the sub-IAB node or the terminal device. Amount of data at MT.
  • UL-SCH uplink shared channel
  • a third calculation unit configured to evaluate the available data volume of a logical channel group according to the buffer size field in the first buffer status report
  • a fourth calculating unit configured to calculate the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group according to the available data amount of the logical channel group.
  • the third calculation unit uses the maximum value of the cache size value corresponding to the index in the cache size level table of a cache size field in the first cache status report, The minimum or median value is used as the available data volume of the logical channel group.
  • the MAC entity of the IAB-DU of the first IAB node or the IAB of the first IAB node - evaluates the available data volume of a logical channel group according to the buffer size field in the first buffer status report.
  • the RLC layer of the IAB-MT of the first IAB node serving as the first indication unit indicates the currently available data volume to the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node as the fifth calculation unit subtracts the currently available data volume from the available data volume of the logical channel group to obtain the expected arrival of the logical channel group The amount of data at the IAB-MT of the first IAB node.
  • the MAC layer of the IAB-MT of the first IAB node indicates the available data volume of the logical channel group to the RLC layer of the IAB-MT of the first IAB node;
  • the RLC layer of the IAB-MT of the first IAB node as the sixth calculation unit subtracts the available data volume of the logical channel group from the currently available data volume, and indicates the calculation result to the first IAB
  • the MAC entity of the IAB-MT of the first IAB node serving as the seventh calculation unit uses the calculation result as the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • An eighth calculation unit which is used to evaluate the total size of MAC SDUs and subheaders of a logical channel group that can be accommodated according to the uplink shared channel resources provided in an uplink grant;
  • a ninth calculation unit which is used to calculate the total amount of the total size provided in all uplink grants of the logical channel group according to the total size of the MAC SDUs and subheaders of a logical channel group that can be accommodated; as well as
  • a tenth calculation unit configured to calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the total amount of the total size provided in all uplink grants of the logical channel group.
  • the RLC layer of the IAB-MT of the first IAB node indicates the currently available data volume to the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node as the eleventh calculation unit subtracts the currently available data from the total amount of the total size provided in all uplink grants of the logical channel group amount to obtain the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • the tenth computing unit includes a fourth indicating unit, a twelfth computing unit, and a thirteenth computing unit
  • the MAC layer of the IAB-MT of the first IAB node indicates to the RLC layer of the IAB-MT of the first IAB node that provided in all uplink grants of the logical channel group the total amount of said total size;
  • the RLC layer of the IAB-MT of the first IAB node as the twelfth calculation unit subtracts the currently available data volume from the total amount of the total size provided in all uplink grants of the logical channel group, and indicating the calculation result to the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node as the thirteenth calculation unit uses the calculation result as the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • the first calculating unit is based on the mapping relationship of the logical channel group, and according to the buffer size in the first buffer status report received from the child IAB node or the terminal device, calculates the expected arrival at the first IAB the amount of data at the node's IAB-MT, and/or,
  • the second calculation unit calculates the expected arrival at the The amount of data at the IAB-MT of the first IAB node.
  • mapping relationship of the logical channel group includes:
  • the logical channel group is 1-to-1 mapped; or,
  • mapping of the logical channel group is based on the implementation of the first IAB node; or,
  • the logical channel group mapping is based on hop count or CQI or 5QI or PDB logical channel group mapping.
  • the second calculation unit sends a logic If an uplink grant is provided to the child IAB node or the terminal device during the fifth period after the last uplink grant of the channel group, according to the uplink grant provided to the child IAB node or the terminal device Calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the resource size of the uplink shared channel (UL-SCH) authorized by the channel.
  • UL-SCH uplink shared channel
  • the second determination unit is configured to regard the amount of data expected to arrive at the IAB-MT of the first IAB node as 0 when it is a negative number.
  • the data volume corresponding to the logical channel group is regarded as is one of the following:
  • the data volume only belongs to MCG, or only belongs to SCG, or belongs to both MCG and SCG;
  • a ratio is configured by the IAB host node of the first IAB node, and the data volume of the ratio only belongs to the data volume of the MCG, or the data volume of the ratio only belongs to the data volume of the SCG, or the data volume of the ratio is simultaneously the amount of data belonging to the MCG and SCG;
  • a second receiving unit configured to receive a first cache status report from a child IAB node of the first IAB node or a terminal device served by the first IAB node, and/or, a second providing unit, configured to provide the child IAB node or the terminal device providing an uplink (UL) grant;
  • the first calculation unit is configured to use the cache size in the first cache status report received from the child IAB node or the terminal device, and/or,
  • the second calculation unit is configured to calculate the IAB-SCH expected to arrive at the first IAB node according to the uplink shared channel (UL-SCH) resource size of the uplink grant provided to the sub-IAB node or the terminal device. Amount of data at MT.
  • UL-SCH uplink shared channel
  • a third calculation unit configured to evaluate the available data volume of a logical channel group according to the buffer size field in the first buffer status report
  • a fourth calculating unit configured to calculate the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group according to the available data amount of the logical channel group.
  • the third calculation unit uses the maximum value of the cache size value corresponding to the index in the cache size level table of a cache size field in the first cache status report, The minimum or median value is used as the available data volume of the logical channel group.
  • the RLC layer of the IAB-MT of the first IAB node as the first indication unit indicates the currently available data volume to the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node as the fifth calculation unit subtracts the currently available data volume from the available data volume of the logical channel group to obtain the expected arrival of the logical channel group The amount of data at the IAB-MT of the first IAB node.
  • the fourth computing unit includes a second indicating unit, a sixth computing unit, and a seventh computing unit
  • the MAC layer of the IAB-MT of the first IAB node indicates the available data volume of the logical channel group to the RLC layer of the IAB-MT of the first IAB node;
  • the RLC layer of the IAB-MT of the first IAB node as the sixth calculation unit subtracts the available data volume of the logical channel group from the currently available data volume, and indicates the calculation result to the first IAB
  • the MAC entity of the IAB-MT of the first IAB node serving as the seventh calculation unit uses the calculation result as the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • An eighth calculation unit which is used to evaluate the total size of MAC SDUs and subheaders of a logical channel group that can be accommodated according to the uplink shared channel resources provided in an uplink grant;
  • a ninth calculation unit which is used to calculate the total amount of the total size provided in all uplink grants of the logical channel group according to the total size of the MAC SDUs and subheaders of a logical channel group that can be accommodated; as well as
  • a tenth calculation unit configured to calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the total amount of the total size provided in all uplink grants of the logical channel group.
  • the RLC layer of the IAB-MT of the first IAB node indicates the currently available data volume to the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node as the eleventh calculation unit subtracts the currently available data from the total amount of the total size provided in all uplink grants of the logical channel group amount to obtain the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • the tenth computing unit includes a fourth indicating unit, a twelfth computing unit, and a thirteenth computing unit
  • the MAC layer of the IAB-MT of the first IAB node indicates to the RLC layer of the IAB-MT of the first IAB node that provided in all uplink grants of the logical channel group the total amount of said total size;
  • the RLC layer of the IAB-MT of the first IAB node as the twelfth calculation unit subtracts the currently available data volume from the total amount of the total size provided in all uplink grants of the logical channel group, and indicating the calculation result to the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node as the thirteenth calculation unit uses the calculation result as the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • the first calculating unit is based on the mapping relationship of the logical channel group, and according to the buffer size in the first buffer status report received from the child IAB node or the terminal device, calculates the expected arrival at the first IAB the amount of data at the node's IAB-MT, and/or,
  • the second calculation unit calculates the expected arrival at the The amount of data at the IAB-MT of the first IAB node.
  • mapping relationship of the logical channel group includes:
  • the logical channel group is 1-to-1 mapped; or,
  • mapping of the logical channel group is based on the implementation of the first IAB node; or,
  • the logical channel group mapping is based on hop count or CQI or 5QI or PDB logical channel group mapping.
  • the second calculation unit sends a logic If an uplink grant is provided to the child IAB node or the terminal device during the fifth period after the last uplink grant of the channel group, according to the uplink grant provided to the child IAB node or the terminal device Calculate the amount of data expected to arrive at the IAB-MT of the first IAB node according to the resource size of the uplink shared channel (UL-SCH) authorized by the channel.
  • UL-SCH uplink shared channel
  • the second determination unit is configured to regard the amount of data expected to arrive at the IAB-MT of the first IAB node as 0 when it is a negative number.
  • the data volume corresponding to the logical channel group is regarded as One of the following:
  • the data volume only belongs to MCG, or only belongs to SCG, or belongs to both MCG and SCG;
  • a ratio is configured by the IAB host node of the first IAB node, and the data volume of the ratio only belongs to the data volume of the MCG, or the data volume of the ratio only belongs to the data volume of the SCG, or the data volume of the ratio is simultaneously the amount of data belonging to the MCG and SCG;
  • a device for sending information for generating a preemption cache status report is applied to an IAB host node of a first IAB node, and the device comprises:
  • a first sending unit configured to send information for generating a preemption cache status report
  • the information used to generate the preemptive cache status report includes the parameters of the first timer, the first parameter, the second parameter, the third parameter, the first threshold, the second threshold, the first period, the second period, and the third period , at least one of the fourth period, the fifth period, the first condition, the second condition, the third condition, and the fourth condition.
  • the parameters of the first timer correspond to logical channel groups.
  • the parameter of the first timer is pBSR-ProhibitTimer.
  • the second threshold corresponds to an MT or a logical channel group.
  • the second threshold is bufferSize-Threshold or dataVolume-Threshold.
  • the information for generating the preemption cache status report is sent by the RRC layer of the IAB host node as the first sending unit.
  • a network device is a first IAB node, and the network device includes the apparatus according to any one of Supplements 1-50.
  • a network device is an IAB host node of a first IAB node, and the network device includes the apparatus according to any one of supplementary notes 51-56.
  • a communication system comprising the network device according to supplementary note 57 and/or the network device according to supplementary note 58.
  • limiting the reporting of logical channel groups in the preemption buffer status report includes: reporting the data volume of logical channel groups that meet the first condition in the preemption buffer status report,
  • the logical channel group meeting the first condition includes at least one of the following logical channel groups:
  • the IAB-MT of the first IAB node is expected to have data arriving and the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than a first threshold logical channel group;
  • the IAB-MT of the first IAB node is expected to have data arriving and the change in the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the logical channel group of the first parameter;
  • the IAB-MT of the first IAB node is expected to have data arriving and the change in the amount of data expected to arrive at the IAB-MT of the first IAB node during the first period is greater than the logical channel group of the second parameter;
  • the IAB-MT of the first IAB node is expected to have data arrival and after the last MAC PDU containing the preemptive buffer status report is sent, the change in the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the third logical channel group of parameters;
  • the change in the amount of data expected to arrive at the IAB-MT of the first IAB node is greater than the logical channel group of the third parameter.
  • the preemption cache status report corresponding to the logical channel group corresponding to the first timer will not be triggered; or,
  • the preemption cache status report corresponding to the logical channel group corresponding to the first timer will be triggered.
  • the parameters of the first timer are configured by the IAB host node of the first IAB node.
  • the parameters of the first timer correspond to logical channel groups.
  • the parameter of the first timer is pBSR-ProhibitTimer.
  • the third condition includes at least one of the following conditions:
  • the preemption buffer status report corresponding to the logical channel group corresponding to the first timer is triggered;
  • the MAC entity of the IAB-MT of the first IAB node instructs the multiplexing assembly process to generate a preemption cache status report MAC CE;
  • a PDCCH that is addressed by the C-RNTI and indicates an uplink grant for the new transmission is received;
  • a Preemption Buffer Status Report MAC CE is sent.
  • a MAC PDU including the Preemption Buffer Status Report MAC CE is sent.
  • the fourth condition includes at least one of the following conditions:
  • the MAC entity of the IAB-MT of the first IAB node restarts
  • the cell associated with the logical channel included in the logical channel group is a secondary cell or the associated cell does not include a special cell, deactivate the secondary cell;
  • the preemption buffer status report corresponding to the logical channel group will not be triggered; or,
  • the preemption buffer status report corresponding to the logical channel group will be triggered.
  • the second threshold is configured by the IAB host node of the first IAB node.
  • the second threshold corresponds to an MT or a logical channel group.
  • the second threshold is bufferSize-Threshold or dataVolume-Threshold.
  • the parameters of the first timer and/or the second threshold are reconfigured
  • the parameters of the first timer and/or the second threshold are reconfigured to a larger value
  • iab-Support is not configured in the SI of the DU belonging to the first IAB node or in the SI of the parent node of the first IAB node.
  • evaluating the available data volume of a logical channel group according to the buffer size field in the first buffer status report includes:
  • the available data volume of the logical channel group is subtracted from the currently available data volume to obtain the data volume of the logical channel group expected to arrive at the IAB-MT of the first IAB node.
  • the MAC entity of the IAB-DU of the first IAB node or the MAC entity of the IAB-MT of the first IAB node evaluates the available data volume of a logical channel group according to the buffer size field in the first buffer status report.
  • the RLC layer of the IAB-MT of the first IAB node indicates to the MAC layer of the IAB-MT of the first IAB node the amount of data currently available
  • the MAC entity of the IAB-MT of the first IAB node subtracts the currently available data amount from the available data amount of the logical channel group to obtain the IAB expected to reach the first IAB node of the logical channel group - Amount of data at MT.
  • the MAC layer of the IAB-MT of the first IAB node indicates the available data volume of the logical channel group to the RLC layer of the IAB-MT of the first IAB node;
  • the RLC layer of the IAB-MT of the first IAB node subtracts the available data amount of the logical channel group from the currently available data amount, and indicates the calculation result to the MAC layer of the IAB-MT of the first IAB node ;as well as
  • the MAC entity of the IAB-MT of the first IAB node uses the calculation result as the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • the amount of data expected to arrive at the IAB-MT of the first IAB node is calculated according to the total amount of the total size provided in all uplink grants of the logical channel group.
  • the IAB-MT expected to arrive at the first IAB node is calculated amount of data, including:
  • the amount of data currently available is subtracted from the total amount of the total size provided in all uplink grants of the logical channel group to obtain the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • the MAC entity of the IAB-DU of the first IAB node or the MAC entity of the IAB-MT of the first IAB node evaluates the capacity of a logical channel group that can be accommodated according to the uplink shared channel resources provided in an uplink grant Total size of MAC SDUs and their subheaders.
  • the RLC layer of the IAB-MT of the first IAB node indicates to the MAC layer of the IAB-MT of the first IAB node the amount of data currently available
  • the MAC entity of the IAB-MT of the first IAB node subtracts the currently available data volume from the total amount of the total size provided in all uplink grants of the logical channel group to obtain the logical channel The amount of data expected to arrive at the IAB-MT of the first IAB node of the group.
  • the MAC layer of the IAB-MT of the first IAB node indicates to the RLC layer of the IAB-MT of the first IAB node the total amount of the total size provided in all uplink grants of the logical channel group;
  • the RLC layer of the IAB-MT of the first IAB node subtracts the currently available data volume from the total size provided in all uplink grants of the logical channel group, and indicates the calculation result to the the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node uses the calculation result as the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • the uplink shared channel (UL-SCH) resource size of the uplink authorization provided to the child IAB node or the terminal device calculate the amount of data expected to arrive at the IAB-MT of the first IAB node, including:
  • mapping relationship of the logical channel group includes:
  • the logical channel group is 1-to-1 mapped; or,
  • mapping of the logical channel group is based on the implementation of the first IAB node; or,
  • the logical channel group mapping is based on hop count or CQI or 5QI or PDB logical channel group mapping.
  • the amount of data at the IAB-MT of the first IAB node includes:
  • the child IAB node or the terminal device In the case of the first cache status report, calculate the IAB-MT expected to arrive at the first IAB node according to the cache size in the first cache status report received from the child IAB node or the terminal device amount of data at .
  • the sub-IAB node or the terminal device Provided to the sub-IAB node or the terminal device during the fourth period from when the MAC PDU containing the preemption buffer status report will be established, or from the fifth period after sending the last uplink grant of a logical channel group
  • UL-SCH uplink shared channel
  • the data volume corresponding to the logical channel group is regarded as is one of the following:
  • the data volume only belongs to MCG, or only belongs to SCG, or belongs to both MCG and SCG;
  • a ratio is configured by the IAB host node of the first IAB node, and the data volume of the ratio only belongs to the data volume of the MCG, or the data volume of the ratio only belongs to the data volume of the SCG, or the data volume of the ratio is simultaneously the amount of data belonging to the MCG and SCG;
  • the buffer size in the first buffer status report received from the child IAB node or the terminal device calculate the amount of data expected to arrive at the IAB-MT of the first IAB node, and/or, according to The resource size of the uplink shared channel (UL-SCH) of the uplink grant provided to the sub-IAB node or the terminal device is used to calculate the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • UL-SCH uplink shared channel
  • evaluating the available data volume of a logical channel group according to the buffer size field in the first buffer status report includes:
  • the available data volume of the logical channel group is subtracted from the currently available data volume to obtain the data volume of the logical channel group expected to arrive at the IAB-MT of the first IAB node.
  • the MAC entity of the IAB-DU of the first IAB node or the MAC entity of the IAB-MT of the first IAB node evaluates the available data volume of a logical channel group according to the buffer size field in the first buffer status report.
  • the RLC layer of the IAB-MT of the first IAB node indicates to the MAC layer of the IAB-MT of the first IAB node the amount of data currently available
  • the MAC entity of the IAB-MT of the first IAB node subtracts the currently available data amount from the available data amount of the logical channel group to obtain the IAB expected to reach the first IAB node of the logical channel group - Amount of data at MT.
  • the MAC layer of the IAB-MT of the first IAB node indicates the available data volume of the logical channel group to the RLC layer of the IAB-MT of the first IAB node;
  • the RLC layer of the IAB-MT of the first IAB node subtracts the available data amount of the logical channel group from the currently available data amount, and indicates the calculation result to the MAC layer of the IAB-MT of the first IAB node ;as well as
  • the MAC entity of the IAB-MT of the first IAB node uses the calculation result as the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • the amount of data expected to arrive at the IAB-MT of the first IAB node is calculated according to the total amount of the total size provided in all uplink grants of the logical channel group.
  • the IAB-MT expected to arrive at the first IAB node is calculated data volume, including:
  • the amount of data currently available is subtracted from the total amount of the total size provided in all uplink grants of the logical channel group to obtain the amount of data expected to arrive at the IAB-MT of the first IAB node.
  • the MAC entity of the IAB-DU of the first IAB node or the MAC entity of the IAB-MT of the first IAB node evaluates the capacity of a logical channel group that can be accommodated according to the uplink shared channel resources provided in an uplink grant Total size of MAC SDUs and their subheaders.
  • the RLC layer of the IAB-MT of the first IAB node indicates to the MAC layer of the IAB-MT of the first IAB node the amount of data currently available
  • the MAC entity of the IAB-MT of the first IAB node subtracts the currently available data volume from the total amount of the total size provided in all uplink grants of the logical channel group to obtain the logical channel The amount of data expected to arrive at the IAB-MT of the first IAB node of the group.
  • the MAC layer of the IAB-MT of the first IAB node indicates to the RLC layer of the IAB-MT of the first IAB node the total amount of the total size provided in all uplink grants of the logical channel group;
  • the RLC layer of the IAB-MT of the first IAB node subtracts the currently available data volume from the total size provided in all uplink grants of the logical channel group, and indicates the calculation result to the the MAC layer of the IAB-MT of the first IAB node;
  • the MAC entity of the IAB-MT of the first IAB node uses the calculation result as the amount of data expected to arrive at the IAB-MT of the first IAB node of the logical channel group.
  • mapping relationship of the logical channel group includes:
  • the logical channel group is 1-to-1 mapped; or,
  • mapping of the logical channel group is based on the implementation of the first IAB node; or,
  • the logical channel group mapping is based on hop count or CQI or 5QI or PDB logical channel group mapping.
  • the amount of data at the IAB-MT of the first IAB node includes:
  • the child IAB node or the terminal device In the case of the first cache status report, calculate the IAB-MT expected to arrive at the first IAB node according to the cache size in the first cache status report received from the child IAB node or the terminal device amount of data at .
  • the sub-IAB node or the terminal device Provided to the sub-IAB node or the terminal device during the fourth period from when the MAC PDU containing the preemption buffer status report will be established, or from the fifth period after sending the last uplink grant of a logical channel group
  • UL-SCH uplink shared channel
  • the data volume corresponding to the logical channel group is regarded as One of the following:
  • the data volume only belongs to MCG, or only belongs to SCG, or belongs to both MCG and SCG;
  • a ratio is configured by the IAB host node of the first IAB node, and the data volume of the ratio only belongs to the data volume of the MCG, or the data volume of the ratio only belongs to the data volume of the SCG, or the data volume of the ratio is simultaneously the amount of data belonging to the MCG and SCG;
  • a method for sending information for generating a preemptive cache status report is applied to an IAB host node of a first IAB node, the method comprising:
  • the information used to generate the preemptive cache status report includes the parameters of the first timer, the first parameter, the second parameter, the third parameter, the first threshold, the second threshold, the first period, the second period, and the third period , at least one of the fourth period, the fifth period, the first condition, the second condition, the third condition, and the fourth condition.
  • the parameters of the first timer correspond to logical channel groups.
  • the parameter of the first timer is pBSR-ProhibitTimer.
  • the second threshold corresponds to an MT or a logical channel group.
  • the second threshold is bufferSize-Threshold or dataVolume-Threshold.
  • the information for generating the preemption cache status report is sent by the RRC layer of the IAB host node.

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Abstract

一种抢占缓存状态报告的生成方法及装置。所述方法应用于第一IAB节点,所述方法包括:从所述第一IAB节点的子IAB节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及限制上报抢占缓存状态报告中的逻辑信道组,和/或,限制逻辑信道组的抢占缓存状态报告的触发。

Description

抢占缓存状态报告的生成方法及装置 技术领域
本发明涉及通信领域。
背景技术
集成的接入和回传(Integrated access and backhaul,IAB)确保NG-RAN里的无线中继。中继节点,即IAB节点(IAB-node),支持NR接入和回传(backhauling)。回传可以包括单跳(hop)或多跳。网络侧NR回传的终点,即IAB宿主(IAB-donor),表示包括支持IAB的额外功能的gNB。IAB宿主也可以称为IAB宿主节点。
IAB节点支持gNB-DU(Distributed Unit,分布单元)的功能,即IAB-DU。IAB-DU终止到终端设备和下一跳IAB节点的NR接入接口,并终止到IAB宿主上的gNB-CU功能的F1协议。另外,IAB节点还支持终端设备功能(UE功能)的一个子集,即IAB-MT,其包括,例如连接到另一个IAB节点或IAB宿主的gNB-DU的、连接到IAB宿主上gNB-CU(Centralized Unit,集中单元)和连接到核心网的物理层、层2(L2)、RRC(Radio Resource Control,无线资源控制)和NAS(Non-Access-Stratum,非接入层)功能。
IAB节点通过一跳或多跳连接到一个IAB宿主。在拓扑中,该IAB宿主为根节点,IAB节点的IAB-DU接口上的邻节点被称为该IAB节点的子节点(descendant node),即子IAB节点(descendant IAB-node),在IAB-MT接口上的邻节点被称为父节点(parent node),即父IAB节点(parent IAB-node)。
应该注意,上面对技术背景的介绍只是为了方便,对本发明的技术方案进行清楚、完整的说明,并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
在IAB架构中,IAB节点可以通过向其父IAB节点发送抢占状态缓存报告(pre-emptive BSR,P-BSR)以降低上行调度时延。
IAB节点可以基于它已经提供给其子IAB节点和/或其服务的终端设备的上行链 路(UL)授权或者基于它从其子IAB节点和/或其服务的终端设备收到的状态缓存报告(BSR)发送抢占状态缓存报告(P-BSR)。其中,P-BSR携带预期到达该IAB节点的IAB-MT处的数据,而不是缓存的数据。
在抢占缓存状态报告的上报过程中,该IAB节点的IAB-MT的MAC实体将会:如果抢占缓存状态报告上报过程确定已经触发了至少一个P-BSR且未取消,并且,如果有可用于新传的上行链路共享信道(UL-SCH)资源且依据逻辑信道优先级(Logical Channel Priority,LCP)这些UL-SCH资源能够容纳抢占缓存状态报告MAC CE加上它的子头,指示复用与组装过程生成抢占缓存状态报告MAC CE;否则,触发单独请求(Scheduling Request,SR)。
当一个MAC PDU被发送,且这个PDU包括抢占缓存状态报告MAC CE时,该MAC实体将会取消所有已经触发的相应的抢占缓存状态报告。
发明人发现,在当前的抢占缓存状态报告的上报过程中,没有规定预期到达IAB节点的IAB-MT处的数据量如何计算,该数据量由实现决定。这使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是不同的;另外,由于计算预期到达IAB节点的IAB-MT处的数据量的方法、上报抢占缓存状态报告的精确时间都是基于实现的,一些IAB节点可能过早地上报比实际的数据量大的值,以获得更好的服务。这将对IAB节点的父IAB节点上的调度决策造成坏的影响,并可能造成IAB节点间竞相尽可能早地请求更大的UL授权,从而导致网络范围内的低效和不公平。
为了解决上述问题中的一个或多个,本申请实施例提供了一种抢占缓存状态报告的生成方法及装置。通过限制上报抢占缓存状态报告中的逻辑信道组和/或限制逻辑信道组的抢占缓存状态报告的触发,能够避免不必要的抢占缓存状态报告上报,从而避免一些IAB节点上报比实际的数据量大的值;和/或,根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小和/或提供给子IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果。因此,能够保证网络范围内的高效和公平。
根据本申请实施例的第一方面,提供了一种抢占缓存状态报告的生成装置,所述装置应用于第一IAB节点,所述装置包括:第一接收单元,其用于从所述第一IAB节点的子IAB节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,第一提供单元,其用于向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及第一限制单元,其用于限制上报抢占缓存状态报告中的逻辑信道组,和/或,第二限制单元,其用于限制逻辑信道组的抢占缓存状态报告的触发。
根据本申请实施例的第二方面,提供了一种抢占缓存状态报告(P-BSR)的生成装置,所述装置应用于第一IAB节点,所述装置包括:第二接收单元,其用于从所述第一IAB节点的子IAB节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,第二提供单元,其用于向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及第一计算单元,其用于根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,和/或,第二计算单元,其用于根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
根据本申请实施例的第三方面,提供了一种用于生成抢占缓存状态报告的信息的发送装置,所述装置应用于第一IAB节点的IAB宿主节点,所述装置包括:第一发送单元,其用于发送用于生成抢占缓存状态报告的信息,所述用于生成抢占缓存状态报告的信息包括第一定时器的参数、第一参数、第二参数、第三参数、第一阈值、第二阈值、第一期间、第二期间、第三期间、第四期间、第五期间、第一条件、第二条件、第三条件以及第四条件中的至少一个。
根据本申请实施例的第四方面,提供了一种网络设备,所述网络设备是第一IAB节点,所述网络设备包括根据本申请实施例的第一方面或第二方面所述的装置。
根据本申请实施例的第五方面,提供了一种网络设备,所述网络设备是第一IAB节点的IAB宿主节点,所述网络设备包括根据本申请实施例的第三方面所述的装置。
根据本申请实施例的第六方面,提供了一种通信系统,所述通信系统包括根据本申请实施例的第四方面所述的网络设备和/或根据本申请实施例的第五方面所述的网络设备。
根据本申请实施例的第七方面,提供了一种抢占缓存状态报告(P-BSR)的生成方法,所述方法应用于第一IAB节点,所述方法包括:从所述第一IAB节点的子IAB 节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及限制上报抢占缓存状态报告中的逻辑信道组,和/或,限制逻辑信道组的抢占缓存状态报告的触发
根据本申请实施例的第八方面,提供了一种抢占缓存状态报告(P-BSR)的生成方法,所述方法应用于第一IAB节点,所述方法包括:从所述第一IAB节点的子IAB节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,和/或,根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
根据本申请实施例的第九方面,提供了一种用于生成抢占缓存状态报告的信息的发送方法,所述方法应用于第一IAB节点的IAB宿主节点,所述方法包括:发送用于生成抢占缓存状态报告的信息,所述用于生成抢占缓存状态报告的信息包括第一定时器的参数、第一参数、第二参数、第三参数、第一阈值、第二阈值、第一期间、第二期间、第三期间、第四期间、第五期间、第一条件、第二条件、第三条件以及第四条件中的至少一个。
根据本申请实施例的第十方面,提供了一种提供了一种计算机可读程序,其中当在抢占缓存状态报告的生成装置或网络设备中执行所述程序时,所述程序使得所述抢占缓存状态报告的生成装置或网络设备执行本发明实施例的第七方面或第八方面所述的抢占缓存状态报告的生成方法。
根据本发明实施例的第十一方面,提供了一种存储有计算机可读程序的存储介质,其中所述计算机可读程序使得抢占缓存状态报告的生成装置或网络设备执行本发明实施例的第七方面或第八方面所述的抢占缓存状态报告的生成方法。
根据本申请实施例的第十二方面,提供了一种提供了一种计算机可读程序,其中当在用于生成抢占缓存状态报告的信息的发送装置或网络设备中执行所述程序时,所述程序使得所述抢占缓存状态报告的生成装置或网络设备执行本发明实施例的第九方面所述的用于生成抢占缓存状态报告的信息的发送方法。
根据本发明实施例的第十三方面,提供了一种存储有计算机可读程序的存储介 质,其中所述计算机可读程序使得用于生成抢占缓存状态报告的信息的发送装置或网络设备执行本发明实施例的第九方面所述的用于生成抢占缓存状态报告的信息的发送方法。
本申请实施例的有益效果之一在于:
通过限制上报抢占缓存状态报告中的逻辑信道组和/或限制逻辑信道组的抢占缓存状态报告的触发,能够避免不必要的抢占缓存状态报告上报,从而避免一些IAB节点上报比实际的数据量大的值;和/或,
根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小和/或提供给子IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果;
因此,能够保证网络范围内的高效和公平。
参照后文的说明和附图,详细公开了本发明的特定实施方式,指明了本发明的原理可以被采用的方式。应该理解,本发明的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内,本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用,与其它实施方式中的特征相组合,或替代其它实施方式中的特征。
应该强调,术语“包括/包含/具有”在本文使用时指特征、整件、步骤或组件的存在,但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本申请实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外,在附图中,类似的标号表示几个附图中对应的部件,并可用于指示多于一种实施方式中使用的对应部件。
所包括的附图用来提供对本申请实施例的进一步的理解,其构成了说明书的一部分,用于例示本发明的实施方式,并与文字描述一起来阐释本发明的原理。显而易见 地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其它的附图。在附图中:
图1是本申请实施例的IAB整体架构的一示意图;
图2是本申请实施例的IAB整体架构的另一示意图;
图3是IAB-DU和IAB-donor-CU间F1-U接口的协议栈的一示意图;
图4是IAB-DU和IAB-donor-CU间F1-C接口的协议栈的一示意图;
图5是本申请实施例的IAB-MT与IAB-donor-CU间SRB的协议栈的一示意图;
图6是本申请实施例的SA模式的单连接场景的一示意图;
图7是本申请实施例的EN-DC模式的双连接场景的一示意图;
图8是本申请实施例的NR-DC模式的双连接场景的一示意图;
图9是本申请实施例的状态缓存报告上报过程的一示意图;
图10A是本申请实施例的短BSR MAC CE和短的截短BSR MAC CE的格式的一示意图;
图10B是本申请实施例的短BSR MAC CE和短的截短BSR MAC CE的格式的另一示意图;
图10C是本申请实施例的短BSR MAC CE和短的截短BSR MAC CE的格式的又一示意图;
图10D是本申请实施例的短BSR MAC CE和短的截短BSR MAC CE的格式的又一示意图;
图10E是本申请实施例的短BSR MAC CE和短的截短BSR MAC CE的格式的又一示意图;
图10F是本申请实施例的长BSR,长的截短BSR和P-BSR MAC CE的格式的一示意图;
图11是本申请实施例1的抢占缓存状态报告的生成方法的一示意图;
图12是本申请实施例1的限制逻辑信道组的抢占缓存状态报告的触发的方法的一示意图;
图13是本申请实施例1的确定预期到达该第一IAB节点的IAB-MT处的数据量的方法的一示意图;
图14是本申请实施例1的实现步骤1302的方法的一示意图;
图15是本申请实施例1的实现步骤1402的方法的一示意图;
图16是本申请实施例1的实现步骤1402的方法的另一示意图;
图17是本申请实施例1的实现步骤1303的方法的一示意图;
图18是本申请实施例1的实现步骤1703的方法的一示意图;
图19是本申请实施例1的实现步骤1703的方法的另一示意图;
图20是本申请实施例2的抢占缓存状态报告的生成方法的一示意图;
图21是本申请实施例2的实现步骤2003的方法的一示意图;
图22是本申请实施例2的实现步骤2102的方法的一示意图;
图23是本申请实施例2的实现步骤2102的方法的另一示意图;
图24是本申请实施例2的实现步骤2004的方法的一示意图;
图25是本申请实施例2的实现步骤2403的方法的一示意图;
图26是本申请实施例2的实现步骤2403的方法的另一示意图;
图27是本申请实施例3的用于生成抢占缓存状态报告的信息的发送方法的一示意图;
图28是本申请实施例4的抢占缓存状态报告的生成方法的一示意图;
图29是本申请实施例4的抢占缓存状态报告的生成方法的另一示意图;
图30是本申请实施例5的抢占缓存状态报告的生成方法的一示意图;
图31是本申请实施例5的抢占缓存状态报告的生成方法的另一示意图;
图32是本申请实施例6的抢占缓存状态报告的生成装置的一示意图;
图33是本申请实施例7的抢占缓存状态报告的生成装置的一示意图;
图34是本申请实施例8的用于生成抢占缓存状态报告的信息的发送装置的一示意图;
图35是本发明实施例9的网络设备的系统构成的一示意框图;
图36是本发明实施例10的网络设备的系统构成的一示意框图;
图37是本申请实施例11的通信系统的一示意图;
图38是本申请实施例11的通信系统的另一示意图;
图39是本申请实施例11的通信系统的又一示意图。
具体实施方式
参照附图,通过下面的说明书,本发明的前述以及其它特征将变得明显。在说明书和附图中,具体公开了本发明的特定实施方式,其表明了其中可以采用本发明的原则的部分实施方式,应了解的是,本发明不限于所描述的实施方式,相反,本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请实施例中,术语“第一”、“第二”等用于对不同元素从称谓上进行区分,但并不表示这些元素的空间排列或时间顺序等,这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在,但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本申请实施例中,单数形式“一”、“该”等包括复数形式,应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义;此外术语“所述”应理解为既包括单数形式也包括复数形式,除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”,术语“基于”应理解为“至少部分基于……”,除非上下文另外明确指出。
在本申请实施例中,术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络,例如长期演进(LTE,Long Term Evolution)、增强的长期演进(LTE-A,LTE-Advanced)、宽带码分多址接入(WCDMA,Wideband Code Division Multiple Access)、高速报文接入(HSPA,High-Speed Packet Access)等等。
并且,通信系统中设备之间的通信可以根据任意阶段的通信协议进行,例如可以包括但不限于如下通信协议:1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及未来的5G、新无线(NR,New Radio)等等,和/或其他目前已知或未来将被开发的通信协议。
在本申请实施例中,术语“网络设备”例如是指通信系统中将用户设备接入通信网络并为该用户设备提供服务的设备。网络设备可以包括但不限于如下设备:IAB架构下的“节点(node)”和/或“宿主(donor)”、基站(BS,Base Station)、接入点(AP、Access Point)、发送接收点(TRP,Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC,Radio Network Controller)、基站控制器(BSC,Base Station Controller)等等。
其中,基站可以包括但不限于:节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB),等等,此外还可包括远端无线头(RRH,Remote Radio Head)、远端无线单元(RRU,Remote Radio Unit)、中继(relay)或者低功率节点(例如femto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能,每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域,这取决于使用该术语的上下文。
在本申请实施例中,术语“用户设备”(UE,User Equipment)例如是指通过网络设备接入通信网络并接收网络服务的设备,也可以称为“终端设备”(TE,Terminal Equipment)。终端设备可以是固定的或移动的,并且也可以称为移动台(MS,Mobile Station)、终端、用户台(SS,Subscriber Station)、接入终端(AT,Access Terminal)、站,等等。例如,IAB架构下的由IAB节点或IAB宿主服务的终端设备。
其中,终端设备可以包括但不限于如下设备:蜂窝电话(Cellular Phone)、个人数字助理(PDA,Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机,等等。
再例如,在物联网(IoT,Internet of Things)等场景下,终端设备还可以是进行监控或测量的机器或装置,例如可以包括但不限于:机器类通信(MTC,Machine Type Communication)终端、车载通信终端、设备到设备(D2D,Device to Device)终端、机器到机器(M2M,Machine to Machine)终端,等等。
在本申请实施例中,“当……时”、“在……情况下”、“对于……的情况”以及“如果……”都表示基于某个或某些条件或状态等,另外,这些表述方式可以互相替换。
以下通过示例对本申请实施例的场景进行说明,但本发明不限于此。
图1是本申请实施例的IAB整体架构的一示意图。如图1所示,该IAB整体架构使用独立(standalone,SA)模式;图2是本申请实施例的IAB整体架构的另一示意图。如图2所示,该IAB整体架构使用双连接(EN-DC)模式。在双连接模式中,IAB节点通过E-UTRA连接到一个MeNB,IAB宿主作为SgNB终止X2-C。
图3是IAB-DU和IAB-donor-CU间F1-U接口的协议栈的一示意图,图4是IAB-DU和IAB-donor-CU间F1-C接口的协议栈的一示意图,在图3和图4中,F1-U和F1-C以2跳回传为例进行说明。
在本申请实施例中,F1-U和F1-C使用IAB-DU和IAB-donor-CU间的IP传输层,另外,F1-U和F1-C有安全保护。
在本申请实施例中,在无线回传上,IP层通过回传适配协议(Backhaul Adaptation Protocol,BAP)子层传输,以确保多跳路由;IP层也可以用于非F1业务,例如操作维护管理(Operation Administration and Maintenance,OAM)业务。
在本申请实施例中,在每个回传链路(backhaul link)上,BAP PDUs由BH RLC信道(channel)传输;在每个BH链路(BH link)上,可以配置多个BH RLC信道,这样允许通信优先化(traffic prioritization)和QoS(Quality of Service,服务质量)实施(QoS enforcement)。
在本申请实施例中,每个IAB节点和IAB-donor-DU上的BAP实体执行BAP PDUs的BH RLC信道的映射。
在本申请实施例中,IAB-MT与IAB-donor-CU建立用于承载RRC和NAS的SRBs。图5是本申请实施例的IAB-MT与IAB-donor-CU间SRB的协议栈的一示意图。
在本申请实施例中,对于工作在EN-DC模式下的IAB节点,IAB-MT还与IAB-donor-CU建立一个或多个DRBs,可以用于例如传输OAM业务。对于SA模式,DRBs的建立是可选的。这些SRBs和DRBs经Uu接口信道在这个IAB-MT和它的父节点间传输。
以下,对本申请实施例的应用场景进行示例性的说明。
图6是本申请实施例的SA模式的单连接场景的一示意图。如图6所示,在SA模式下,第一IAB节点通过IAB宿主节点接入网络。
图7是本申请实施例的EN-DC模式的双连接场景的一示意图。如图7所示,在EN-DC模式下,第一IAB节点可以通过IAB宿主节点以及MeNB接入网络。另外,在EN-DC里,不支持E-UTRA无线接口上的backhauling业务。
在本申请实施例中,对于EN-DC模式的IAB架构,由于仅SCG/SN支持IAB,本申请实施例的抢占缓存状态报告的生成方法及装置适用于SCG/SN协议栈,例如SN MAC/RLC或SCG MAC/RLC。
图8是本申请实施例的NR-DC模式的双连接场景的一示意图。如图8所示,在NR-DC模式下,第一IAB节点可以通过两个父IAB节点,即第三IAB节点以及第四 IAB节点接入网络。
在本申请实施例中,对于NR-DC模式的IAB架构,MCG/MN和SCG/SN都可能支持IAB,如果支持,本申请实施例的抢占缓存状态报告的生成方法及装置适用于MCG/MN和SCG/SN协议栈,例如包括MN MAC/RLC或MCG MAC/RLC,和SN MAC/RLC或SCG MAC/RLC。
在IAB架构中,IAB节点可以向其父IAB节点发送状态缓存报告(BSR)或抢占状态缓存报告(P-BSR)。在本申请实施例中,状态缓存报告(BSR)又称为常规BSR(regular BSR);BSR携带的是缓存的数据,P-BSR携带的是预期到达该IAB节点的IAB-MT处的数据,而不是缓存的数据。
图9是本申请实施例的状态缓存报告上报过程的一示意图。
如图9所示,对于情况a),第一IAB节点接收来自其子IAB节点和/或其服务的终端设备的常规状态缓存报告(常规BSR),并向该子IAB节点和/或终端设备提供上行链路(UL)授权,在来自该子IAB节点和/或终端设备的数据到达第一IAB节点时,可以触发并生成常规状态缓存报告(regular BSR),并将该常规BSR上报给第一IAB节点的父IAB节点;
对于情况b),第一IAB节点接收来自其子IAB节点和/或其服务的终端设备的常规状态缓存报告(常规BSR),并向该子IAB节点和/或终端设备提供上行链路(UL)授权,然后可以触发并生成抢占状态缓存报告(P-BSR),并将该P-BSR上报给第一IAB节点的父IAB节点;之后,来自该子IAB节点和/或终端设备的数据到达第一IAB节点的IAB-MT;
对于情况c),第一IAB节点接收来自其子IAB节点和/或其服务的终端设备的常规状态缓存报告(常规BSR),然后可以触发并生成抢占状态缓存报告(P-BSR),并将该P-BSR上报给第一IAB节点的父IAB节点;之后向该子IAB节点和/或终端设备提供上行链路(UL)授权,;然后,来自该子IAB节点和/或终端设备的数据到达第一IAB节点的IAB-MT。
在本申请实施例中,对于情况b)和情况c),通过限制上报抢占缓存状态报告中的逻辑信道组和/或限制逻辑信道组的抢占缓存状态报告的触发,能够避免不必要的抢占缓存状态报告上报,从而避免一些IAB节点上报比实际的数据量大的值;和/或,根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小和/或提供给子 IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果;因此,能够保证网络范围内的高效和公平。
图10A是本申请实施例的短BSR MAC CE和短的截短BSR MAC CE的格式的一示意图;图10B是本申请实施例的短BSR MAC CE和短的截短BSR MAC CE的格式的另一示意图;图10C是本申请实施例的短BSR MAC CE和短的截短BSR MAC CE的格式的又一示意图;图10D是本申请实施例的短BSR MAC CE和短的截短BSR MAC CE的格式的又一示意图;图10E是本申请实施例的短BSR MAC CE和短的截短BSR MAC CE的格式的又一示意图;图10F是本申请实施例的长BSR,长的截短BSR和P-BSR MAC CE的格式的一示意图。
如图10A至图10E所示,短BSR MAC CE和短的截短BSR MAC CE的长度是固定的,例如包括1个字节或2个字节,由LCG标识(LCG ID)域以及缓存大小(Buffer Size)域组成,LCG ID域用于标识正在被报告缓存状态的逻辑信道组,LCG ID域的长度是3比特(bits);Buffer Size域表示这个MAC PDU(即包括这个BSR MAC CE的MAC PDU)被构建后(即LCP过程之后)、一个逻辑信道组的所有逻辑信道可用数据的总量,数据量由字节数指示。另外,R表示保留比特。
如图10A和图10B所示,Buffer Size域的长度为5比特,如图10C、图10D和图10E所示,Buffer Size域的长度为8比特。如图10D和图10E所示,LCG ID域和R的长度为1字节。
如图10F所示,长BSR,长的截短BSR和P-BSR MAC CE的长度是可变的,可以包括LCGi域和Buffer Size域。各个逻辑信道组(LCGi)域的长度为1比特,i的最小值为0,最大值例如是7或15或31或63或127或255,也可以为更大的数值。例如,图10F里,i的最大值是为7,8个LCGi域组成1个字节。当i的最大值是为15时,16个LCGi域组成2个字节。当i的最大值是为31时,32个LCGi域组成4个字节。当i的最大值是为63时,64个LCGi域组成8个字节。当i的最大值是为127时,128个LCGi域组成16个字节。当i的最大值是为255时,256个LCGi域组 成32个字节。
对于长BSR格式和P-BSR格式,LCGi域指示对逻辑信道组i是否出现Buffer Size域。LCGi域设置为1,指示对逻辑信道组i的Buffer Size域被报告;LCGi域设置为0,指示对逻辑信道组i的Buffer Size域不被报告。
对于长的截短BSR格式,LCGi域指示逻辑信道组i是否有可用数据(data available)。LCGi域设置为1,指示对逻辑信道组i有可用数据;LCGi域设置为0,指示对逻辑信道组i没有可用数据。
例如,对于长BSR和长的截短BSR,Buffer Size域用于标识在MAC PDU已经被构建之后(即LCP过程之后)、一个逻辑信道组的所有逻辑信道可用数据的总量,数据量由字节数指示,其Buffer Size域的长度为8比特,基于LCGi以升序排列。对于P-BSR格式,Buffer Size域用于标识在节点IAB-MT处预期到达的数据量,数据量由字节数指示,其Buffer Size域的长度为8比特,基于LCGi以升序排列。在本申请实施例中,上述P-BSR MAC CE的格式只是作为一个示例,其也可以采用其他格式以及大小。
下面结合附图对本申请实施例的各种实施方式进行说明。这些实施方式只是示例性的,不是对本发明的限制。
实施例1
本申请实施例提供了一种抢占缓存状态报告的生成方法,该方法用于第一IAB节点。
图11是本申请实施例1的抢占缓存状态报告的生成方法的一示意图。如图11所示,该方法包括:
步骤1101:从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,
步骤1102:向该子IAB节点或该终端设备提供上行链路(UL)授权;以及
步骤1103:限制上报抢占缓存状态报告中的逻辑信道组,和/或,
步骤1104:限制逻辑信道组的抢占缓存状态报告的触发。
这样,通过限制上报抢占缓存状态报告中的逻辑信道组和/或限制逻辑信道组的抢占缓存状态报告的触发,能够避免不必要的抢占缓存状态报告上报,从而避免一些IAB节点上报比实际的数据量大的值;因此,能够保证网络范围内的高效和公平。
在本申请实施例中,该方法可以包括步骤1101和步骤1102中的至少一个以及步骤1103和步骤1104中的至少一个。另外,当包括步骤1103和步骤1104时,不对这两个步骤的执行顺序进行限制。
例如,对应于图9中的情况b),该方法包括步骤1101和步骤1102,或者,该方法包括步骤1102;对应于步骤图9中的情况c),该方法包括步骤1101。
在本申请实施例中,第一缓存状态报告是指缓存状态报告,即常规BSR(regular BSR)。
在本申请实施例中,该方法可以包括步骤1103和步骤1104中的至少一个。
在步骤1103中,第一IAB节点限制上报抢占缓存状态报告中的逻辑信道组。
以下,针对本申请实施例的限制上报抢占缓存状态报告中的逻辑信道组的方法进行具体的说明。
在步骤1103中,限制上报抢占缓存状态报告中的逻辑信道组可以包括:在抢占缓存状态报告中上报满足第一条件的逻辑信道组的数据量。
也就是说,在抢占缓存状态报告中,不上报不满足第一条件的逻辑信道组的数据量。
例如,该满足第一条件的逻辑信道组包括以下逻辑信道组中的至少一种:
(1)该第一IAB节点的IAB-MT处预期有数据到达的所有逻辑信道组;
(2)该第一IAB节点的IAB-MT处预期有数据到达且预期到达该第一IAB节点的IAB-MT处的数据量大于第一阈值的逻辑信道组;
(3)该第一IAB节点的IAB-MT处预期有数据到达且预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第一参数的逻辑信道组;
(4)该第一IAB节点的IAB-MT处预期有数据到达且在第一期间预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第二参数的逻辑信道组;
(5)该第一IAB节点的IAB-MT处预期有数据到达且上一个包含抢占缓存状态报告的MAC PDU发送后,预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第三参数的逻辑信道组;
(6)预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第一参数的逻辑信道组;
(7)在第一期间预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第 二参数的逻辑信道组;以及
(8)上一个包含抢占缓存状态报告的MAC PDU发送后,预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第三参数的逻辑信道组。
在本申请实施例中,“该第一IAB节点的IAB-MT处预期有数据到达”也可以称为“该第一IAB节点预期有数据到达”;“预期到达该第一IAB节点的IAB-MT处的数据量”也可以称为“预期到达该第一IAB节点的数据量”。
在本申请实施例中,第一参数、第二参数以及第三参数可以相同,也可以不同。
例如,该第一参数、第二参数以及第三参数中的至少一个参数可以由IAB宿主节点配置,其可以是对应于IAB节点而配置,也可以是对应于逻辑信道组(LCG)而配置,第一参数、第二参数以及第三参数中的至少一个参数的值可以是枚举类型的,例如包括{0,16,26,71,526,29431,81338368,infinity},单位是字节(byte);如果不支持一个IAB节点和/或LCG上报P-BSR,可以把该第一参数、第二参数或第三参数的值设置为infinity;如果支持P-BSR上报,但是没有配置该第一参数、第二参数或第三参数,则默认值可以为0。
在本申请实施例中,预期到达该第一IAB节点的IAB-MT处的数据量的变化是指变化前后的数据量的差值的绝对值。
例如,对于上述条件(3),对于一个逻辑信道组,当预期到达该第一IAB节点的IAB-MT处的数据量在变化前后的数据量的差值的绝对值大于第一参数时,在抢占缓存状态报告中上报该逻辑信道组的数据量。即,对于条件(3),仅考虑变化的幅度,而不考虑多长时间造成的这种变化。
例如,对于上述条件(4),对于一个逻辑信道组,在第一期间预期到达该第一IAB节点的IAB-MT处的数据量的变化是指当前数据量大小减去第一期间前的数据量大小的计算结果的绝对值。也就是说,当该计算结果的绝对值大于第二参数时,在抢占缓存状态报告中上报该逻辑信道组的数据量。
例如,对于上述条件(5),对于一个逻辑信道组,在上一个包含抢占缓存状态报告的MAC PDU发送后的预期到达该第一IAB节点的IAB-MT处的数据量减去该MAC PDU发送前的预期到达该第一IAB节点的IAB-MT处的数据量的差值的绝对值大于第三参数时,在抢占缓存状态报告中上报该逻辑信道组的数据量。
在步骤1104中,限制逻辑信道组的抢占缓存状态报告的触发。图12是本申请实 施例1的限制逻辑信道组的抢占缓存状态报告的触发的方法的一示意图。如图12所示,该方法包括以下步骤中的至少一个:
步骤1201:基于第一定时器来限制逻辑信道组的抢占缓存状态报告的触发;
步骤1202:基于预期到达该第一IAB节点的IAB-MT处的数据量来限制逻辑信道组的抢占缓存状态报告的触发;以及
步骤1203:当满足第二条件时,取消触发的抢占缓存状态报告。
在本申请实施例中,不对步骤1201至步骤1203的执行顺序进行限制。
在本申请实施例中,该方法可以包括步骤1201至步骤1203中的至少一个,即,可以包括步骤1201、步骤1202以及步骤1203中的一个或者各种组合。
例如,该方法包括步骤1201和步骤1203,或者,包括步骤1202和步骤1203,或者,包括步骤1201和步骤1202,或者,包括步骤1201、步骤1202以及步骤1203。
以下,对于步骤1201、步骤1202以及步骤1203的实现方法进行具体的说明。
在步骤1201中,基于第一定时器来限制逻辑信道组的抢占缓存状态报告的触发。
例如,当该第一定时器正在运行时,与该第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将不会被触发;
或者,也可以说,至少或仅当该第一定时器没有运行或未配置时,与该第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将会被触发。
或者,也可以说,至少或仅当该第一定时器超时或未配置时,与该第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将会被触发。
在本申请实施例中,该第一定时器也可以称为禁止定时器。
在本申请实施例中,该第一定时器的参数例如是第一定时器的值,其可以由该第一IAB节点的IAB宿主节点配置,例如,由IAB宿主节点的RRC层配置。
在本申请实施例中,该第一定时器的参数是对应于逻辑信道组的,即per LCG而配置的。
例如,该第一定时器的参数是pBSR-ProhibitTimer。该第一定时器的参数也可以采用其他名称。
在本申请实施例中,当满足第三条件时,该第一定时器启动;
例如,该第三条件包括以下条件中的至少一个:
与该第一定时器对应的逻辑信道组所对应的抢占缓存状态报告被触发;
该第一IAB节点的IAB-MT的MAC实体指示复用组装过程生成抢占缓存状态报告MAC CE;
对于用于抢占缓存状态报告MAC CE的传输的HARQ进程,收到使用C-RNTI寻址的、为新传指示上行授权的一个PDCCH;
抢占缓存状态报告MAC CE被发送;以及
一个包括抢占缓存状态报告MAC CE的MAC PDU被发送。
在本申请实施例中,当满足第四条件时,该第一定时器停止,
例如,该第四条件包括以下条件中的至少一个:
该第一IAB节点的IAB-MT的MAC实体重启;
该第一定时器的参数或包括该第一定时器的参数的IE重配置;
当该逻辑信道组包括的逻辑信道关联的小区是辅小区或关联的小区不包括特殊小区时,所在辅小区去激活;以及
进行BWP切换。
在步骤1202中,基于预期到达该第一IAB节点的IAB-MT处的数据量来限制逻辑信道组的抢占缓存状态报告的触发。
例如,当一个逻辑信道组的该数据量小于第二阈值时,与该逻辑信道组所对应的抢占缓存状态报告将不会被触发;或者,
至少或仅当一个逻辑信道组的该数据量大于或等于第二阈值时,与该逻辑信道组所对应的抢占缓存状态报告将会被触发。
在本申请实施例中,该第二阈值可以由该第一IAB节点的IAB宿主节点配置,例如,由IAB宿主节点的RRC层配置。
在本申请实施例中,该第二阈值是对应于MT或逻辑信道组的,即per MT或per LCG而配置的。
例如,该第二阈值是bufferSize-Threshold或者是dataVolume-Threshold。该第二阈值也可以采用其他名称。
在步骤1203中,当满足第二条件时,取消触发的抢占缓存状态报告。
例如,该第二条件包括以下条件中的至少一个:
第一定时器的参数和/或第二阈值被重配置;
包括第一定时器的参数的IE和/或包括第二阈值的IE被重配置;
收到包括第一定时器的参数的IE和/或包括第二阈值的IE;
第一定时器的参数和/或第二阈值被重配置为更大的值;
BWP切换或MAC重启或发生RLF;
收到来自该第一IAB节点的父IAB节点的Type-4或Type-2或Type-3的无线链路失败(RLF)通知;
收到重路由或本地重路由或应用条件切换(CHO)配置的指示;
重路由或本地重路由;以及
属于该第一IAB节点的DU的SI里或该第一IAB节点的父节点的SI里未配置iab-Support。
在本申请实施例中,第一定时器的参数以及第二阈值的相关内容可以参照上面的记载,此处不再重复说明。
例如,Type-4的无线链路失败通知的含义是父IAB节点检测到RLF后进行了RLF恢复,例如发起RRC连接重建过程,且该RLF恢复,例如RRC重建过程失败;Type-2的无线链路失败通知的含义是父IAB节点检测到了无线链路失败或父IAB节点检测到了无线链路失败、尝试RLF恢复,例如发起RRC连接重建过程;Type-3的无线链路失败通知的含义是父IAB节点取消或恢复了无线链路失败。
以上对限制逻辑信道组的抢占缓存状态报告的触发的方法进行了具体的说明,其中,在步骤1202中,基于预期到达该第一IAB节点的IAB-MT处的数据量来限制逻辑信道组的抢占缓存状态报告的触发。
以下,对确定预期到达该第一IAB节点的IAB-MT处的数据量的方法进行具体的说明。
图13是本申请实施例1的确定预期到达该第一IAB节点的IAB-MT处的数据量的方法的一示意图。如图13所示,该方法包括:
步骤1301:基于实现确定预期到达该第一IAB节点的IAB-MT处的数据量,或者,
步骤1302:根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量,和/或,
步骤1303:根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
在步骤1301中,基于实现来确定预期到达该第一IAB节点的IAB-MT处的数据量,其可以参考相关技术。
该方法可以包括步骤1302和步骤1303中的至少一个,另外,当包括步骤1302和步骤1303时,不对这两个步骤的执行顺序进行限制。
以下针对步骤1302和步骤1303分别进行具体的说明。
在步骤1302中,根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
这样,根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果;因此,能够保证网络范围内的高效和公平。
例如,在从将要建立包含抢占缓存状态报告的MAC PDU时前的第二期间,或者从发送上一个包含抢占缓存状态报告的MAC PDU后的第三期间,收到了来自该子IAB节点或该终端设备的第一缓存状态报告的情况下,根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量,和/或,根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
图14是本申请实施例1的实现步骤1302的方法的一示意图。如图14所示,该方法包括:
步骤1401:根据该第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量;以及
步骤1402:根据该逻辑信道组的可用数据量,计算该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在步骤1401中,根据该第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量,例如,使用该第一缓存状态报告里的一个缓存大小域的缓存大小水平表格里的索引对应的缓存大小值的最大值、最小值或中间值,作为该逻辑信道组的可 用数据量。
例如,使用该第一缓存状态报告里的5比特或8比特缓存大小域的缓存大小水平表格里的索引对应的缓存大小值的最大值、最小值或中间值,作为该逻辑信道组的可用数据量。
例如,如果buffer size域=20,对于5比特buffer size域,使用最大值则缓存数据量为5446bytes,使用最小值则缓存数据量为3910bytes,使用中间值则缓存数据量为4678bytes;对于8比特buffer size域,使用最大值则缓存数据量为36bytes,使用最小值则缓存数据量为35bytes,中间值则缓存数据量为35bytes或36bytes。
具体使用哪个数值可以根据实际情况而配置或定义或指示。
例如,该第一IAB节点的IAB-DU的MAC实体或该第一IAB节点的IAB-MT的MAC实体根据该第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量。
在步骤1402中,根据该逻辑信道组的可用数据量,计算该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量,例如,将该逻辑信道组的可用数据量减去当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
图15是本申请实施例1的实现步骤1402的方法的一示意图。如图15所示,该方法包括:
步骤1501:该第一IAB节点的IAB-MT的RLC层向该第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;以及
步骤1502:该第一IAB节点的IAB-MT的MAC实体将该逻辑信道组的可用数据量减去该当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
图16是本申请实施例1的实现步骤1402的方法的另一示意图。如图16所示,该方法包括:
步骤1601:该第一IAB节点的IAB-MT的MAC层向该第一IAB节点的IAB-MT的RLC层指示该逻辑信道组的可用数据量;另外,还可以同时指示相应的LCG ID;
步骤1602:该第一IAB节点的IAB-MT的RLC层将该逻辑信道组的可用数据量减去当前可用的数据量,并将计算结果指示给该第一IAB节点的IAB-MT的MAC层; 以及
步骤1603:该第一IAB节点的IAB-MT的MAC实体将该计算结果作为该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,在步骤1302中,可以基于逻辑信道组的映射关系,并根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
例如,该逻辑信道组的映射关系,包括:
该逻辑信道组是1对1映射的;或者,
该逻辑信道组的映射基于该第一IAB节点的实现;或者,
该逻辑信道组的映射是基于跳数或CQI或5QI或PDB的逻辑信道组映射。
在该实施例中,逻辑信道组的映射关系是指:在收到的第一缓存状态报告里提供了一个或多个逻辑信道组(LCG)的缓存大小,而计算预期到达该第一IAB节点的IAB-MT处的数据量的目的是在P-BSR里指示一个LCG的数据量大小,“逻辑信道组的映射关系”是第一缓存状态报告里提供了缓存大小的LCG与P-BSR里指示数据量大小的LCG的映射关系。
例如,该逻辑信道组是1对1映射的是指:第一缓存状态报告里提供了缓存大小的LCG与P-BSR里指示数据量大小的LCG是1对1映射的;
例如,该逻辑信道组的映射基于该第一IAB节点的实现是指:第一缓存状态报告里提供了缓存大小的LCG与P-BSR里指示数据量大小的LCG的映射关系基于第一IAB节点的实现而确定;
例如,该逻辑信道组的映射是基于跳数的是指:第一缓存状态报告里提供了缓存大小的具有相同跳数的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于CQI的是指:第一缓存状态报告里提供了缓存大小的具有相同CQI的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于5QI的是指:第一缓存状态报告里提供了缓存大小的具有相同5QI的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于PDB的是指:第一缓存状态报告里提供了缓存大小的具有相同PDB的LCG映射至P-BSR中的同一LCG。
在步骤1303中,根据提供给该子IAB节点或该终端设备的上行链路授权的上行 共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
这样,根据提供给子IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果;因此,能够保证网络范围内的高效和公平。
例如,在从将要建立包含抢占缓存状态报告的MAC PDU时前的第四期间,或者从发送一个逻辑信道组的上一个上行链路授权后的第五期间向该子IAB节点或该终端设备提供上行链路授权的情况下,根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量,和/或,根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
图17是本申请实施例1的实现步骤1303的方法的一示意图。如图17所示,该方法包括:
步骤1701:根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小;
另外,该评估结果可以作为LCP结果;
步骤1702:根据能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,计算该逻辑信道组的所有上行链路授权里提供的该总大小的总量;以及
步骤1703:根据该逻辑信道组的所有上行链路授权里提供的该总大小的总量,计算预期到达该第一IAB节点的IAB-MT处的数据量。
在步骤1701中,例如,该第一IAB节点的IAB-DU的MAC实体或该第一IAB节点的IAB-MT的MAC实体根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小。
在步骤1702中,例如,将该逻辑信道组的所有上行链路授权里提供的该总大小的总量减去当前可用的数据量,得到预期到达该第一IAB节点的IAB-MT处的数据量。
图18是本申请实施例1的实现步骤1703的方法的一示意图。如图18所示,该方法包括:
步骤1801:该第一IAB节点的IAB-MT的RLC层向该第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;以及
步骤1802:该第一IAB节点的IAB-MT的MAC实体将该逻辑信道组的所有上行链路授权里提供的该总大小的总量减去该当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
图19是本申请实施例1的实现步骤1703的方法的另一示意图。如图19所示,该方法包括:
步骤1901:该第一IAB节点的IAB-MT的MAC层向该第一IAB节点的IAB-MT的RLC层指示该逻辑信道组的所有上行链路授权里提供的该总大小的总量;另外,还可以同时指示相应的LCG ID;
步骤1902:该第一IAB节点的IAB-MT的RLC层将该逻辑信道组的所有上行链路授权里提供的该总大小的总量减去当前可用的数据量,并将计算结果指示给该第一IAB节点的IAB-MT的MAC层;以及
步骤1903:该第一IAB节点的IAB-MT的MAC实体将该计算结果作为该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,在步骤1303中,可以基于逻辑信道组的映射关系,并根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
例如,该逻辑信道组的映射关系,包括:
该逻辑信道组是1对1映射的;或者,
该逻辑信道组的映射基于该第一IAB节点的实现;或者,
该逻辑信道组的映射是基于跳数或CQI或5QI或PDB的逻辑信道组映射。
在该实施例中,逻辑信道组的映射关系是指:LCP过程是把不同逻辑信道(LC)上生成的MAC PDU放到分配的资源上生成传输块(TB),这里是根据提供的资源,推断可以容纳的来自不同LC的MAC PDU的大小,不同LC有关联的LCG,而计算预期到达该第一IAB节点的IAB-MT处的数据量的目的是在P-BSR里指示一个LCG的数据量大小,“逻辑信道组的映射关系”是LC关联的LCG与P-BSR里指示数据量 大小的LCG的映射关系。
例如,该逻辑信道组是1对1映射的是指:LC关联的LCG与P-BSR里指示数据量大小的LCG是1对1映射的;
例如,该逻辑信道组的映射基于该第一IAB节点的实现是指:LC关联的LCG与P-BSR里指示数据量大小的LCG的映射关系基于第一IAB节点的实现而确定;
例如,该逻辑信道组的映射是基于跳数的是指:LC关联的具有相同跳数的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于CQI的是指:LC关联的具有相同CQI的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于5QI的是指:LC关联的具有相同5QI的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于PDB的是指:LC关联的具有相同PDB的LCG映射至P-BSR中的同一LCG。
在本申请实施例中,也可以根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小和提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
例如,根据该第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量,并且,根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,将该逻辑信道组的可用数据量加上该逻辑信道组的MAC SDUs及其子头的总大小后再减去当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,例如,当前可用的数据量是指RLC层当前的可用数据量。
例如,第一IAB节点根据以下的至少一个来确定当前可用的数据量:
尚未包括在一个RLC数据PDU里的RLC SDUs和RLC SDU分段;
等待初始传输的RLC数据PDUs;以及
等待重传的RLC数据PDUs(RLC AM)。
另外,如果已经触发了一个状态PDU,且定时器t-StatusProhibit没有运行或已经超时,第一IAB节点评估将在下一个传输机会里发送的状态PDU的大小,作为当前 可用的数据量的一部分。
在本申请实施例中,在根据步骤1302和/或步骤1303计算出预期到达该第一IAB节点的IAB-MT处的数据量后,当预期到达该第一IAB节点的IAB-MT处的数据量是负数时,可以将其认为是0。
在本申请实施例中,对于NR-DC架构,当属于相同入口逻辑信道组(ingress LCG)的两个入口回程(ingress BH)RLC信道分别被映射到MCG出口和SCG出口时,该逻辑信道组对应的数据量看作是如下中的一种:
仅属于MCG的数据量;
仅属于SCG的数据量;
同时属于MCG和SCG的数据量;
由该第一IAB节点的IAB宿主节点配置,仅属于MCG的数据量,或仅属于SCG的数据量,或同时属于MCG和SCG的数据量;
由该第一IAB节点的IAB宿主节点配置一个比例,该比例的数据量仅属于MCG的数据量,或该比例的数据量仅属于SCG的数据量,或该比例的数据量同时属于MCG和SCG的数据量;以及
基于跳数或CQI或5QI或PDB,属于MCG和/或SCG。
以基于跳数为例,例如,如果被映射到MCG出口的信道关联的跳数最大,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道关联的跳数最小,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道关联的跳数最大,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道关联的跳数最大,则属于MCG,否则同时属于MCG和SCG;
又例如,如果被映射到MCG出口的信道关联的跳数最小,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道关联的跳数最小,则属于MCG,否则同时属于MCG和SCG。
以基于CQI为例,例如,如果被映射到MCG出口的信道的CQI最大,则属于 MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的CQI最小,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的CQI最大,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的CQI最大,则属于MCG,否则同时属于MCG和SCG;
又例如,如果被映射到MCG出口的信道的CQI最小,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的CQI最小,则属于MCG,否则同时属于MCG和SCG。
以基于5QI为例,例如,如果被映射到MCG出口的信道的5QI最大,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的5QI最小,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的5QI最大,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的5QI最大,则属于MCG,否则同时属于MCG和SCG;
又例如,如果被映射到MCG出口的信道的5QI最小,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的5QI最小,则属于MCG,否则同时属于MCG和SCG。
以基于PDB为例,例如,如果被映射到MCG出口的信道的PDB最大,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的PDB最小,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的PDB最大,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的PDB最大,则属于MCG,否则同时属于MCG和SCG;
又例如,如果被映射到MCG出口的信道的PDB最小,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的PDB最小,则属于MCG,否则同时属于MCG和SCG。
由上述实施例可知,通过限制上报抢占缓存状态报告中的逻辑信道组和/或限制逻辑信道组的抢占缓存状态报告的触发,能够避免不必要的抢占缓存状态报告上报,从而避免一些IAB节点上报比实际的数据量大的值;因此,能够保证网络范围内的高效和公平。
实施例2
本申请实施例提供了一种抢占缓存状态报告的生成方法,该方法应用于第一IAB节点。
图20是本申请实施例2的抢占缓存状态报告的生成方法的一示意图。如图20所示,该方法包括:
步骤2001:从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,
步骤2002:向该子IAB节点或该终端设备提供上行链路(UL)授权;以及
步骤2003:根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量,和/或,
步骤2004:根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
这样,根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小和/或提供给子IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果。因此,能够保证网络范围内的高效和公平。
在本申请实施例中,该方法可以包括步骤2001和步骤2002中的至少一个以及步骤2003和步骤2004中的至少一个。另外,当包括步骤2003和步骤2004时,不对这两个步骤的执行顺序进行限制。
例如,对应于图9中的情况b),该方法包括步骤2001和步骤2002,或者,该方法包括步骤2002;对应于步骤图9中的情况c),该方法包括步骤2001。
在该方法包括步骤2001的情况下,即,在从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告的情况下,该方法可以包括步骤2003和/或步骤2004;
在该方法包括步骤2002的情况下,即,在向该子IAB节点或该终端设备提供上行链路(UL)授权的情况下,该方法可以包括步骤2003和/或步骤2004;
在该方法包括步骤2001和步骤2002的情况下,即,在从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告,并且,向该子IAB节点或该终端设备提供上行链路(UL)授权的情况下,该方法可以包括步骤2003和/或步骤2004。
在本申请实施例中,步骤2003、步骤2004可以与实施例1中的步骤1302、步骤1303相同。
在步骤2003中,根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
这样,根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果;因此,能够保证网络范围内的高效和公平。
例如,例如,在从将要建立包含抢占缓存状态报告的MAC PDU时前的第二期间,或者从发送上一个包含抢占缓存状态报告的MAC PDU后的第三期间收到了来自该子IAB节点或该终端设备的第一缓存状态报告的情况下,根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量,和/或,根据提供给该子IAB节点或该终端设备的上行链路 授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
图21是本申请实施例2的实现步骤2003的方法的一示意图。如图21所示,该方法包括:
步骤2101:根据该第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量;以及
步骤2102:根据该逻辑信道组的可用数据量,计算该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在步骤2101中,根据该第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量,例如,使用该第一缓存状态报告里的一个缓存大小域的缓存大小水平表格里的索引对应的缓存大小值的最大值、最小值或中间值,作为该逻辑信道组的可用数据量。
例如,使用该第一缓存状态报告里的5比特或8比特缓存大小域的缓存大小水平表格里的索引对应的缓存大小值的最大值、最小值或中间值,作为该逻辑信道组的可用数据量。
例如,如果buffer size域=20,对于5比特buffer size域,使用最大值则缓存数据量为5446bytes,使用最小值则缓存数据量为3910bytes,使用中间值则缓存数据量为4678bytes;对于8比特buffer size域,使用最大值则缓存数据量为36bytes,使用最小值则缓存数据量为35bytes,中间值则缓存数据量为35bytes或36bytes,具体使用哪个数值可以根据实际情况而配置或定义或指示。
例如,该第一IAB节点的IAB-DU的MAC实体或该第一IAB节点的IAB-MT的MAC实体根据该第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量。
在步骤2102中,根据该逻辑信道组的可用数据量,计算该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量,例如,将该逻辑信道组的可用数据量减去当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
图22是本申请实施例2的实现步骤2102的方法的一示意图。如图22所示,该方法包括:
步骤2201:该第一IAB节点的IAB-MT的RLC层向该第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;以及
步骤2202:该第一IAB节点的IAB-MT的MAC实体将该逻辑信道组的可用数据量减去该当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
图23是本申请实施例2的实现步骤2102的方法的另一示意图。如图23所示,该方法包括:
步骤2301:该第一IAB节点的IAB-MT的MAC层向该第一IAB节点的IAB-MT的RLC层指示该逻辑信道组的可用数据量;另外,还可以同时指示相应的LCG ID;
步骤2302:该第一IAB节点的IAB-MT的RLC层将该逻辑信道组的可用数据量减去当前可用的数据量,并将计算结果指示给该第一IAB节点的IAB-MT的MAC层;以及
步骤2303:该第一IAB节点的IAB-MT的MAC实体将该计算结果作为该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,在步骤2003中,可以基于逻辑信道组的映射关系,并根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
例如,该逻辑信道组的映射关系,包括:
该逻辑信道组是1对1映射的;或者,
该逻辑信道组的映射基于该第一IAB节点的实现;或者,
该逻辑信道组的映射是基于跳数或CQI或5QI或PDB的逻辑信道组映射。
在该实施例中,逻辑信道组的映射关系是指:在收到的第一缓存状态报告里提供了一个或多个逻辑信道组(LCG)的缓存大小,而计算预期到达该第一IAB节点的IAB-MT处的数据量的目的是在P-BSR里指示一个LCG的数据量大小,“逻辑信道组的映射关系”是第一缓存状态报告里提供了缓存大小的LCG与P-BSR里指示数据量大小的LCG的映射关系。
例如,该逻辑信道组是1对1映射的是指:第一缓存状态报告里提供了缓存大小的LCG与P-BSR里指示数据量大小的LCG是1对1映射的;
例如,该逻辑信道组的映射基于该第一IAB节点的实现是指:第一缓存状态报 告里提供了缓存大小的LCG与P-BSR里指示数据量大小的LCG的映射关系基于第一IAB节点的实现而确定;
例如,该逻辑信道组的映射是基于跳数的是指:第一缓存状态报告里提供了缓存大小的具有相同跳数的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于CQI的是指:第一缓存状态报告里提供了缓存大小的具有相同CQI的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于5QI的是指:第一缓存状态报告里提供了缓存大小的具有相同5QI的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于PDB的是指:第一缓存状态报告里提供了缓存大小的具有相同PDB的LCG映射至P-BSR中的同一LCG。
在步骤2004中,根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
这样,根据提供给子IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果;因此,能够保证网络范围内的高效和公平。
例如,在从将要建立包含抢占缓存状态报告的MAC PDU时前的第四期间,或者从发送一个逻辑信道组的上一个上行链路授权后的第五期间向该子IAB节点或该终端设备提供上行链路授权的情况下,根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量,和/或,根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
图24是本申请实施例2的实现步骤2004的方法的一示意图。如图24所示,该方法包括:
步骤2401:根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小;
另外,该评估结果可以作为LCP结果;
步骤2402:根据能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,计算该逻辑信道组的所有上行链路授权里提供的该总大小的总量;以及
步骤2403:根据该逻辑信道组的所有上行链路授权里提供的该总大小的总量,计算预期到达该第一IAB节点的IAB-MT处的数据量。
在步骤2401中,例如,该第一IAB节点的IAB-DU的MAC实体或该第一IAB节点的IAB-MT的MAC实体根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小。
在步骤2402中,例如,将该逻辑信道组的所有上行链路授权里提供的该总大小的总量减去当前可用的数据量,得到预期到达该第一IAB节点的IAB-MT处的数据量。
图25是本申请实施例2的实现步骤2403的方法的一示意图。如图25所示,该方法包括:
步骤2501:该第一IAB节点的IAB-MT的RLC层向该第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;以及
步骤2502:该第一IAB节点的IAB-MT的MAC实体将该逻辑信道组的所有上行链路授权里提供的该总大小的总量减去该当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
图26是本申请实施例2的实现步骤2403的方法的另一示意图。如图26所示,该方法包括:
步骤2601:该第一IAB节点的IAB-MT的MAC层向该第一IAB节点的IAB-MT的RLC层指示该逻辑信道组的所有上行链路授权里提供的该总大小的总量;另外,还可以同时指示相应的LCG ID;
步骤2602:该第一IAB节点的IAB-MT的RLC层将该逻辑信道组的所有上行链路授权里提供的该总大小的总量减去当前可用的数据量,并将计算结果指示给该第一IAB节点的IAB-MT的MAC层;以及
步骤2603:该第一IAB节点的IAB-MT的MAC实体将该计算结果作为该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,在步骤2004中,可以基于逻辑信道组的映射关系,并根据 提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
例如,该逻辑信道组的映射关系,包括:
该逻辑信道组是1对1映射的;或者,
该逻辑信道组的映射基于该第一IAB节点的实现;或者,
该逻辑信道组的映射是基于跳数或CQI或5QI或PDB的逻辑信道组映射。
在该实施例中,逻辑信道组的映射关系是指:LCP过程是把不同逻辑信道(LC)上生成的MAC PDU放到分配的资源上生成传输块(TB),这里是根据提供的资源,推断可以容纳的来自不同LC的MAC PDU的大小,不同LC有关联的LCG,而计算预期到达该第一IAB节点的IAB-MT处的数据量的目的是在P-BSR里指示一个LCG的数据量大小,“逻辑信道组的映射关系”是LC关联的LCG与P-BSR里指示数据量大小的LCG的映射关系。
例如,该逻辑信道组是1对1映射的是指:LC关联的LCG与P-BSR里指示数据量大小的LCG是1对1映射的;
例如,该逻辑信道组的映射基于该第一IAB节点的实现是指:LC关联的LCG与P-BSR里指示数据量大小的LCG的映射关系基于第一IAB节点的实现而确定;
例如,该逻辑信道组的映射是基于跳数的是指:LC关联的具有相同跳数的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于CQI的是指:LC关联的具有相同CQI的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于5QI的是指:LC关联的具有相同5QI的LCG映射至P-BSR中的同一LCG;
例如,该逻辑信道组的映射是基于PDB的是指:LC关联的具有相同PDB的LCG映射至P-BSR中的同一LCG。
在本申请实施例中,也可以根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小和提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
例如,根据该第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据 量,并且,根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,将该逻辑信道组的可用数据量加上该逻辑信道组的MAC SDUs及其子头的总大小后再减去当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,例如,当前可用的数据量是指RLC层当前的可用数据量。
例如,第一IAB节点根据以下的至少一个来确定当前可用的数据量:
尚未包括在一个RLC数据PDU里的RLC SDUs和RLC SDU分段;
等待初始传输的RLC数据PDUs;以及
等待重传的RLC数据PDUs(RLC AM)。
另外,如果已经触发了一个状态PDU,且定时器t-StatusProhibit没有运行或已经超时,第一IAB节点评估将在下一个传输机会里发送的状态PDU的大小,作为当前可用的数据量的一部分。
在本申请实施例中,在根据步骤2003和/或步骤2004计算出预期到达该第一IAB节点的IAB-MT处的数据量后,当预期到达该第一IAB节点的IAB-MT处的数据量是负数时,可以将其认为是0。
在本申请实施例中,对于NR-DC架构,当属于相同入口逻辑信道组(ingress LCG)的两个入口回程(ingress BH)RLC信道分别被映射到MCG出口和SCG出口时,该逻辑信道组对应的数据量看作是如下中的一种:
仅属于MCG的数据量;
仅属于SCG的数据量;
同时属于MCG和SCG的数据量;
由该第一IAB节点的IAB宿主节点配置,仅属于MCG的数据量,或仅属于SCG的数据量,或同时属于MCG和SCG的数据量;
由该第一IAB节点的IAB宿主节点配置一个比例,该比例的数据量仅属于MCG的数据量,或该比例的数据量仅属于SCG的数据量,或该比例的数据量同时属于MCG和SCG的数据量;以及
基于跳数或CQI或5QI或PDB,属于MCG和/或SCG。
以基于跳数为例,例如,如果被映射到MCG出口的信道关联的跳数最大,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道关联的跳数最小,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道关联的跳数最大,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道关联的跳数最大,则属于MCG,否则同时属于MCG和SCG;
又例如,如果被映射到MCG出口的信道关联的跳数最小,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道关联的跳数最小,则属于MCG,否则同时属于MCG和SCG。
以基于CQI为例,例如,如果被映射到MCG出口的信道的CQI最大,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的CQI最小,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的CQI最大,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的CQI最大,则属于MCG,否则同时属于MCG和SCG;
又例如,如果被映射到MCG出口的信道的CQI最小,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的CQI最小,则属于MCG,否则同时属于MCG和SCG。
以基于5QI为例,例如,如果被映射到MCG出口的信道的5QI最大,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的5QI最小,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的5QI最大,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的5QI最大,则属于MCG,否则同时 属于MCG和SCG;
又例如,如果被映射到MCG出口的信道的5QI最小,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的5QI最小,则属于MCG,否则同时属于MCG和SCG。
以基于PDB为例,例如,如果被映射到MCG出口的信道的PDB最大,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的PDB最小,则属于MCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的PDB最大,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的PDB最大,则属于MCG,否则同时属于MCG和SCG;
又例如,如果被映射到MCG出口的信道的PDB最小,则同时属于MCG和SCG,否则属于SCG;
又例如,如果被映射到MCG出口的信道的PDB最小,则属于MCG,否则同时属于MCG和SCG。
由上述实施例可知,根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小和/或提供给子IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果。因此,能够保证网络范围内的高效和公平。
实施例3
本申请实施例提供了一种用于生成抢占缓存状态报告的信息的发送方法,该方法应用于第一IAB节点的IAB宿主节点,其对应于实施例1和实施例2所述的方法。
图27是本申请实施例3的用于生成抢占缓存状态报告的信息的发送方法的一示意图。如图27所示,该方法包括:
步骤2701:发送用于生成抢占缓存状态报告的信息。
例如,该用于生成抢占缓存状态报告的信息包括第一定时器的参数、第一参数、第二参数、第三参数、第一阈值、第二阈值、第一期间、第二期间、第三期间、第四期间、第五期间、第一条件、第二条件、第三条件以及第四条件中的至少一个。
在本实施例中,第一定时器的参数、第一参数、第二参数、第三参数、第一阈值、第二阈值、第一期间、第二期间、第三期间、第四期间、第五期间、第一条件、第二条件、第三条件以及第四条件的具体含义可以参考实施例1和2中的相关记载,此处不再重复说明。
例如,该第一定时器的参数是对应于逻辑信道组的。
例如,该第一定时器的参数是pBSR-ProhibitTimer。
例如,该第二阈值是对应于MT或逻辑信道组的。
例如,该第二阈值是bufferSize-Threshold或者是dataVolume-Threshold。
例如,该用于生成抢占缓存状态报告的信息由该IAB宿主节点的RRC层发送。
由上述实施例可知,通过发送用于生成抢占缓存状态报告的信息,第一IAB节点能够基于该信息中的至少一部分生成抢占缓存状态报告,从而能够实现实施例1和/或实施例2中记载的技术效果。
实施例4
本申请实施例提供了一种抢占缓存状态报告的生成方法,该方法用于第一IAB节点、该第一IAB节点的子IAB节点和/或该子IAB节点服务的终端设备以及第一IAB节点的父IAB节点。该方法对应于实施例1所述的方法。
图28是本申请实施例4的抢占缓存状态报告的生成方法的一示意图。如图28所示,该方法包括:
步骤2801:从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告;
步骤2802:第一IAB节点向该子IAB节点或该终端设备提供上行链路(UL)授权;
步骤2803:第一IAB节点限制上报抢占缓存状态报告中的逻辑信道组;
步骤2804:第一IAB节点限制逻辑信道组的抢占缓存状态报告的触发;
步骤2805:经过步骤2803和/或步骤2804的限制之后,对于至少一个逻辑信道 组,第一IAB节点可能触发一个抢占缓存状态报告,也可能不触发;
步骤2806:如果步骤2805中对于至少一个逻辑信道组触发了一个抢占缓存状态报告,并且,如果对于该逻辑信道组,触发的该抢占缓存状态报告未取消如果有可用于新传的上行链路共享信道(UL-SCH)资源且依据逻辑信道优先级(LCP)这些UL-SCH资源能够容纳抢占缓存状态报告MAC CE加上它的子头,该第一IAB节点的IAB-MT的MAC实体指示复用与组装过程生成抢占缓存状态报告MAC CE;如果对于该逻辑信道组,触发的该抢占缓存状态报告取消,或者,没有可用于新传的上行链路共享信道(UL-SCH)资源且依据逻辑信道优先级(LCP)这些UL-SCH资源能够容纳抢占缓存状态报告MAC CE加上它的子头,则不指示复用与组装过程生成抢占缓存状态报告MAC CE;以及
步骤2807:第一IAB节点向其父IAB节点发送该抢占缓存状态报告MAC CE。
在本申请实施例中,该方法可以包括步骤2803和步骤2804中的至少一个,并且,当包括步骤2803和步骤2804时,不对两者的执行顺序进行限制。
图29是本申请实施例4的抢占缓存状态报告的生成方法的另一示意图。如图29所示,该方法包括:
步骤2901:从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告;
步骤2902:第一IAB节点限制上报抢占缓存状态报告中的逻辑信道组;
步骤2903:第一IAB节点限制逻辑信道组的抢占缓存状态报告的触发;
步骤2904:经过步骤2902和/或步骤2903的限制之后,对于至少一个逻辑信道组,第一IAB节点可能触发一个抢占缓存状态报告,也可能不触发;
步骤2905:如果步骤2904中对于至少一个逻辑信道组触发了一个抢占缓存状态报告,并且,如果对于该逻辑信道组,触发的该抢占缓存状态报告未取消如果有可用于新传的上行链路共享信道(UL-SCH)资源且依据逻辑信道优先级(LCP)这些UL-SCH资源能够容纳抢占缓存状态报告MAC CE加上它的子头,该第一IAB节点的IAB-MT的MAC实体指示复用与组装过程生成抢占缓存状态报告MAC CE;如果对于该逻辑信道组,触发的该抢占缓存状态报告取消,或者,没有可用于新传的上行链路共享信道(UL-SCH)资源且依据逻辑信道优先级(LCP)这些UL-SCH资源能够容纳抢占缓存状态报告MAC CE加上它的子头,则不指示复用与组装过程生成抢 占缓存状态报告MAC CE;以及
步骤2906:第一IAB节点向其父IAB节点发送该抢占缓存状态报告MAC CE;以及
步骤2907:第一IAB节点向该子IAB节点或该终端设备提供上行链路(UL)授权。
在本申请实施例中,该方法可以包括步骤2902和步骤2903中的至少一个,并且,当包括步骤2902和步骤2903时,不对两者的执行顺序进行限制。
在本申请实施例中,上述各个步骤的具体实现方法可以参考实施例1中的记载,此处不再重复说明。
由上述实施例可知,通过限制上报抢占缓存状态报告中的逻辑信道组和/或限制逻辑信道组的抢占缓存状态报告的触发,能够避免不必要的抢占缓存状态报告上报,从而避免一些IAB节点上报比实际的数据量大的值;因此,能够保证网络范围内的高效和公平。
实施例5
本申请实施例提供了一种抢占缓存状态报告的生成方法,该方法用于第一IAB节点、该第一IAB节点的子IAB节点和/或该子IAB节点服务的终端设备以及第一IAB节点的父IAB节点。该方法对应于实施例2所述的方法。
图30是本申请实施例5的抢占缓存状态报告的生成方法的一示意图。如图30所示,该方法包括:
步骤3001:从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告;
步骤3002:第一IAB节点向该子IAB节点或该终端设备提供上行链路(UL)授权;
步骤3003:根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量;和/或,
步骤3004:根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量;
步骤3005:根据步骤3003和/或步骤3004计算出的预期的数据量,第一IAB节点触发一个抢占缓存状态报告;
步骤3006:如果触发的该抢占缓存状态报告未取消如果有可用于新传的上行链路共享信道(UL-SCH)资源且依据逻辑信道优先级(LCP)这些UL-SCH资源能够容纳抢占缓存状态报告MAC CE加上它的子头,该第一IAB节点的IAB-MT的MAC实体指示复用与组装过程生成抢占缓存状态报告MAC CE;以及
步骤3007:第一IAB节点向其父IAB节点发送该抢占缓存状态报告MAC CE。
在本申请实施例中,该方法可以包括步骤3003和步骤3004中的至少一个,并且,当包括步骤3003和步骤3004时,不对两者的执行顺序进行限制。
在本申请实施例中,不对步骤3003、步骤3004与步骤3005、步骤3006之间的先后顺序进行限制。例如,可以先执行步骤3003和/或步骤3004,再执行步骤3005,再执行步骤3006;又例如,可以先执行步骤3005,再执行步骤3006,再执行步骤3003和/或步骤3004。
图31是本申请实施例5的抢占缓存状态报告的生成方法的另一示意图。如图31所示,该方法包括:
步骤3101:从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告;
步骤3102:根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量;
步骤3103:根据计算出的预期的数据量,第一IAB节点触发一个抢占缓存状态报告;
步骤3104:如果触发的该抢占缓存状态报告未取消如果有可用于新传的上行链路共享信道(UL-SCH)资源且依据逻辑信道优先级(LCP)这些UL-SCH资源能够容纳抢占缓存状态报告MAC CE加上它的子头,该第一IAB节点的IAB-MT的MAC实体指示复用与组装过程生成抢占缓存状态报告MAC CE;以及
步骤3105:第一IAB节点向其父IAB节点发送该抢占缓存状态报告MAC CE;以及
步骤3106:第一IAB节点向该子IAB节点或该终端设备提供上行链路(UL)授权。
在本申请实施例中,不对步骤3102与步骤3104之间的先后顺序进行限制。例如,可以先执行步骤3102,再执行步骤3103,再执行步骤3104;又例如,可以先执行步 骤3103,再执行步骤3104,再执行步骤3102。
在本申请实施例中,上述各个步骤的具体实现方法可以参考实施例2中的记载,此处不再重复说明。
由上述实施例可知,根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小和/或提供给子IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果。因此,能够保证网络范围内的高效和公平。
实施例6
本申请实施例提供一种抢占缓存状态报告的生成装置,该装置用于第一IAB节点。该装置对应于实施例1所述的方法。
图32是本申请实施例6的抢占缓存状态报告的生成装置的一示意图。如图32所示,装置3200包括:
第一接收单元3201,其用于从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,
第一提供单元3202,其用于向该子IAB节点或该终端设备提供上行链路(UL)授权;以及
第一限制单元3203,其用于限制上报抢占缓存状态报告中的逻辑信道组,和/或,
第二限制单元3204,其用于限制逻辑信道组的抢占缓存状态报告的触发。
在本申请实施例中,该第一限制单元用于在抢占缓存状态报告中上报满足第一条件的逻辑信道组的数据量,
该满足第一条件的逻辑信道组包括以下逻辑信道组中的至少一种:
该第一IAB节点的IAB-MT处预期有数据到达的所有逻辑信道组;
该第一IAB节点的IAB-MT处预期有数据到达且预期到达该第一IAB节点的IAB-MT处的数据量大于第一阈值的逻辑信道组;
该第一IAB节点的IAB-MT处预期有数据到达且预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第一参数的逻辑信道组;
该第一IAB节点的IAB-MT处预期有数据到达且在第一期间预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第二参数的逻辑信道组;
该第一IAB节点的IAB-MT处预期有数据到达且上一个包含抢占缓存状态报告的MAC PDU发送后,预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第三参数的逻辑信道组;
预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第一参数的逻辑信道组;
在第一期间预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第二参数的逻辑信道组;以及
上一个包含抢占缓存状态报告的MAC PDU发送后,预期到达该第一IAB节点的IAB-MT处的数据量的变化大于第三参数的逻辑信道组。
在本申请实施例中,该第二限制单元包括以下中的至少一个:
第三限制单元,其用于基于第一定时器来限制逻辑信道组的抢占缓存状态报告的触发;
第四限制单元,其用于基于预期到达该第一IAB节点的IAB-MT处的数据量来限制逻辑信道组的抢占缓存状态报告的触发;以及
第五限制单元,其用于当满足第二条件时,取消触发的抢占缓存状态报告。
在本申请实施例中,该第三限制单元用于,当该第一定时器正在运行时,与该第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将不会被触发;或者,至少或仅当该第一定时器没有运行或未配置时,与该第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将会被触发。
例如,该第一定时器的参数由该第一IAB节点的IAB宿主节点配置。
例如,该第一定时器的参数是对应于逻辑信道组的。
例如,该第一定时器的参数是pBSR-ProhibitTimer。
在本申请实施例中,当满足第三条件时,该第一定时器启动;
该第三条件包括以下条件中的至少一个:
与该第一定时器对应的逻辑信道组所对应的抢占缓存状态报告被触发;
该第一IAB节点的IAB-MT的MAC实体指示复用组装过程生成抢占缓存状态报告MAC CE;
对于用于抢占缓存状态报告MAC CE的传输的HARQ进程,收到使用C-RNTI寻址的、为新传指示上行授权的一个PDCCH;
抢占缓存状态报告MAC CE被发送;以及
一个包括抢占缓存状态报告MAC CE的MAC PDU被发送。
在本申请实施例中,当满足第四条件时,该第一定时器停止,
该第四条件包括以下条件中的至少一个:
该第一IAB节点的IAB-MT的MAC实体重启;
该第一定时器的参数或包括该第一定时器的参数的IE重配置;
当该逻辑信道组包括的逻辑信道关联的小区是辅小区或关联的小区不包括特殊小区时,所在辅小区去激活;以及
进行BWP切换。
在本申请实施例中,该第四限制单元用于,当一个逻辑信道组的该数据量小于第二阈值时,与该逻辑信道组所对应的抢占缓存状态报告将不会被触发;或者,至少或仅当一个逻辑信道组的该数据量大于或等于第二阈值时,与该逻辑信道组所对应的抢占缓存状态报告将会被触发。
例如,该第二阈值由该第一IAB节点的IAB宿主节点配置。
例如,该第二阈值是对应于MT或逻辑信道组的。
例如,该第二阈值是bufferSize-Threshold或者是dataVolume-Threshold。
在本申请实施例中,该第二条件包括以下条件中的至少一个:
第一定时器的参数和/或第二阈值被重配置;
第一定时器的参数和/或第二阈值被重配置为更大的值;
BWP切换或MAC重启或发生RLF;
收到来自该第一IAB节点的父IAB节点的Type-4或Type-2或Type-3的无线链路失败通知;
收到重路由或本地重路由或应用条件切换(CHO)配置的指示;
重路由或本地重路由;以及
属于该第一IAB节点的DU的SI里或该第一IAB节点的父节点的SI里未配置iab-Support。
在本申请实施例中,该装置还可以包括:
第一确定单元,其用于基于实现确定预期到达该第一IAB节点的IAB-MT处的数据量,或者,
第一计算单元,其用于根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量,和/或,
第二计算单元,其用于根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,该第一计算单元包括:
第三计算单元,其用于根据该第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量;以及
第四计算单元,其用于根据该逻辑信道组的可用数据量,计算该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,该第三计算单元使用该第一缓存状态报告里的一个缓存大小域的缓存大小水平表格里的索引对应的缓存大小值的最大值、最小值或中间值,作为该逻辑信道组的可用数据量。
在本申请实施例中,该第四计算单元将该逻辑信道组的可用数据量减去当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,作为该第三计算单元的该第一IAB节点的IAB-DU的MAC实体或该第一IAB节点的IAB-MT的MAC实体根据该第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量。
在本申请实施例中,该第四计算单元包括第一指示单元和第五计算单元,
作为该第一指示单元的该第一IAB节点的IAB-MT的RLC层向该第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;
作为该第五计算单元的该第一IAB节点的IAB-MT的MAC实体将该逻辑信道组的可用数据量减去该当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,该第四计算单元包括第二指示单元、第六计算单元和第七计算单元,
作为该第二指示单元的该第一IAB节点的IAB-MT的MAC层向该第一IAB节 点的IAB-MT的RLC层指示该逻辑信道组的可用数据量;
作为该第六计算单元的该第一IAB节点的IAB-MT的RLC层将该逻辑信道组的可用数据量减去当前可用的数据量,并将计算结果指示给该第一IAB节点的IAB-MT的MAC层;
作为该第七计算单元的该第一IAB节点的IAB-MT的MAC实体将该计算结果作为该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,该第二计算单元包括:
第八计算单元,其用于根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小;
第九计算单元,其用于根据能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,计算该逻辑信道组的所有上行链路授权里提供的该总大小的总量;以及
第十计算单元,其用于根据该逻辑信道组的所有上行链路授权里提供的该总大小的总量,计算预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,该第十计算单元将该逻辑信道组的所有上行链路授权里提供的该总大小的总量减去当前可用的数据量,得到预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,作为该第八计算单元的该第一IAB节点的IAB-DU的MAC实体或该第一IAB节点的IAB-MT的MAC实体根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小。
在本申请实施例中,该第十计算单元包括第三指示单元和第十一计算单元,
作为第三指示单元的该第一IAB节点的IAB-MT的RLC层向该第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;
作为第十一计算单元的该第一IAB节点的IAB-MT的MAC实体将该逻辑信道组的所有上行链路授权里提供的该总大小的总量减去该当前可用的数据量,得到该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,该第十计算单元包括第四指示单元、第十二计算单元以及第十三计算单元,
作为该第四指示单元的该第一IAB节点的IAB-MT的MAC层向该第一IAB节点的IAB-MT的RLC层指示该逻辑信道组的所有上行链路授权里提供的该总大小的 总量;
作为第十二计算单元的该第一IAB节点的IAB-MT的RLC层将该逻辑信道组的所有上行链路授权里提供的该总大小的总量减去当前可用的数据量,并将计算结果指示给该第一IAB节点的IAB-MT的MAC层;
作为第十三计算单元的该第一IAB节点的IAB-MT的MAC实体将该计算结果作为该逻辑信道组的预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,该第一计算单元基于逻辑信道组的映射关系,并根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量,和/或,
该第二计算单元基于逻辑信道组的映射关系,并根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,该逻辑信道组的映射关系,包括:
该逻辑信道组是1对1映射的;或者,
该逻辑信道组的映射基于该第一IAB节点的实现;或者,
该逻辑信道组的映射是基于跳数或CQI或5QI或PDB的逻辑信道组映射。
在本申请实施例中,该第一计算单元在从将要建立包含抢占缓存状态报告的MAC PDU时前的第二期间,或者从发送上一个包含抢占缓存状态报告的MAC PDU后的第三期间收到了来自该子IAB节点或该终端设备的第一缓存状态报告的情况下,根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,该第二计算单元在从将要建立包含抢占缓存状态报告的MAC PDU时前的第四期间,或者从发送一个逻辑信道组的上一个上行链路授权后的第五期间向该子IAB节点或该终端设备提供上行链路授权的情况下,根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,该装置还可以包括:
第二确定单元,其用于当预期到达该第一IAB节点的IAB-MT处的数据量是负数时,将其认为是0。
在本申请实施例中,对于NR-DC架构,当属于相同入口逻辑信道组(ingress LCG)的两个入口回程(ingress BH)RLC信道分别被映射到MCG出口和SCG出口时,该逻辑信道组对应的数据量看作是如下中的一种:
仅属于MCG的数据量;
仅属于SCG的数据量;
同时属于MCG和SCG的数据量;
由该第一IAB节点的IAB宿主节点配置,仅属于MCG的数据量,或仅属于SCG的数据量,或同时属于MCG和SCG的数据量;
由该第一IAB节点的IAB宿主节点配置一个比例,该比例的数据量仅属于MCG的数据量,或该比例的数据量仅属于SCG的数据量,或该比例的数据量同时属于MCG和SCG的数据量;
基于跳数或CQI或5QI或PDB,属于MCG和/或SCG。
在本申请实施例中,上述各个单元的功能的实现可以参照实施例1中相关步骤的实现方法,此处不再重复说明。
由上述实施例可知,通过限制上报抢占缓存状态报告中的逻辑信道组和/或限制逻辑信道组的抢占缓存状态报告的触发,能够避免不必要的抢占缓存状态报告上报,从而避免一些IAB节点上报比实际的数据量大的值;因此,能够保证网络范围内的高效和公平。
实施例7
本申请实施例提供一种抢占缓存状态报告的生成装置,该装置用于第一IAB节点。该装置对应于实施例1所述的方法。
图33是本申请实施例7的抢占缓存状态报告的生成装置的一示意图。如图33所示,装置3300包括:
第二接收单元3301,其用于从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,
第二提供单元3302,其用于向该子IAB节点或该终端设备提供上行链路(UL)授权;以及
第一计算单元3303,其用于根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量; 和/或,
第二计算单元3304,其用于根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
在本申请实施例中,第一计算单元3303、第二计算单元3304可以与实施例6中的第一计算单元以及第二计算单元相同,具体的内容可以参照实施例7中的记载,此处不再重复说明。
由上述实施例可知,根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小和/或提供给子IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果。因此,能够保证网络范围内的高效和公平。
实施例8
本申请实施例提供一种用于生成抢占缓存状态报告的信息的发送装置,该装置应用于第一IAB节点的IAB宿主节点。该装置对应于实施例3所述的方法。
图34是本申请实施例8的用于生成抢占缓存状态报告的信息的发送装置的一示意图,如图34所示,装置3400包括:
第一发送单元3401,其用于发送用于生成抢占缓存状态报告的信息,
该用于生成抢占缓存状态报告的信息包括第一定时器的参数、第一参数、第二参数、第三参数、第一阈值、第二阈值、第一期间、第二期间、第三期间、第四期间、第五期间、第一条件、第二条件、第三条件以及第四条件中的至少一个。
例如,该第一定时器的参数是对应于逻辑信道组的。
例如,该第一定时器的参数是pBSR-ProhibitTimer。
例如,该第二阈值是对应于MT或逻辑信道组的。
例如,该第二阈值是bufferSize-Threshold或者是dataVolume-Threshold。
例如,该用于生成抢占缓存状态报告的信息由作为第一发送单元的该IAB宿主节点的RRC层发送。
在本申请实施例中,上述各个单元的功能的实现可以参照实施例3和实施例1中相关步骤的实现方法,此处不再重复说明。
由上述实施例可知,通过发送用于生成抢占缓存状态报告的信息,第一IAB节点能够基于该信息中的至少一部分生成抢占缓存状态报告,从而能够实现实施例6和/或实施例7中记载的技术效果。
实施例9
本发明实施例提供了一种网络设备,该网络设备包括如实施例6或实施例7所述的用于生成抢占缓存状态报告的信息的发送装置。
图35是本发明实施例9的网络设备的系统构成的一示意框图。如图35所示,网络设备3500可以包括:处理器(processor)3510和存储器3520;存储器3520耦合到处理器3510。其中该存储器3520可存储各种数据;此外还存储信息处理的程序3530,并且在处理器3510的控制下执行该程序3530,以接收终端设备发送的各种信息、并且向终端设备发送各种信息。
在一个实施方式中,抢占缓存状态报告的生成装置的功能可以被集成到处理器3510中。
对应于实施例6,处理器3510可以被配置为:从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,向该子IAB节点或该终端设备提供上行链路(UL)授权;以及限制上报抢占缓存状态报告中的逻辑信道组,和/或,限制逻辑信道组的抢占缓存状态报告的触发。
对应于实施例7,处理器3510可以被配置为:从该第一IAB节点的子IAB节点或该第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,向该子IAB节点或该终端设备提供上行链路(UL)授权;以及根据从该子IAB节点或该终端设备收到的该第一缓存状态报告里的缓存大小,计算预期到达该第一IAB节点的IAB-MT处的数据量,和/或,根据提供给该子IAB节点或该终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达该第一IAB节点的IAB-MT处的数据量。
在另一个实施方式中,抢占缓存状态报告的生成装置可以与处理器3510分开配置,例如可以将抢占缓存状态报告的生成装置配置为与处理器3510连接的芯片,通过处理器3510的控制来实现抢占缓存状态报告的生成装置的功能。
此外,如图35所示,网络设备3500还可以包括:收发机3540和天线3550等;其中,上述部件的功能与现有技术类似,此处不再赘述。值得注意的是,网络设备3500也并不是必须要包括图35中所示的所有部件;此外,网络设备3500还可以包括图35中没有示出的部件,可以参考现有技术。
由上述实施例可知,通过限制上报抢占缓存状态报告中的逻辑信道组和/或限制逻辑信道组的抢占缓存状态报告的触发,能够避免不必要的抢占缓存状态报告上报,从而避免一些IAB节点上报比实际的数据量大的值;和/或,根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小和/或提供给子IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果;因此,能够保证网络范围内的高效和公平。
实施例10
本发明实施例提供了一种网络设备,该网络设备包括如实施例8所述的用于生成抢占缓存状态报告的信息的发送装置。
图36是本发明实施例10的网络设备的系统构成的一示意框图。如图36所示,网络设备3600可以包括:处理器(processor)3610和存储器3620;存储器3620耦合到处理器3610。其中该存储器3620可存储各种数据;此外还存储信息处理的程序3630,并且在处理器3610的控制下执行该程序3630,以接收终端设备发送的各种信息、并且向终端设备发送各种信息。
在一个实施方式中,用于生成抢占缓存状态报告的信息的发送装置的功能可以被集成到处理器3610中。
处理器3610可以被配置为:发送用于生成抢占缓存状态报告的信息,
该用于生成抢占缓存状态报告的信息包括第一定时器的参数、第一参数、第二参数、第三参数、第一阈值、第二阈值、第一期间、第二期间、第三期间、第四期间、第五期间、第一条件、第二条件、第三条件以及第四条件中的至少一个。
在另一个实施方式中,用于生成抢占缓存状态报告的信息的发送装置可以与处理器3610分开配置,例如可以将抢占缓存状态报告的生成装置配置为与处理器3610 连接的芯片,通过处理器3610的控制来实现抢占缓存状态报告的生成装置的功能。
此外,如图36所示,网络设备3600还可以包括:收发机3640和天线3650等;其中,上述部件的功能与现有技术类似,此处不再赘述。值得注意的是,网络设备3600也并不是必须要包括图36中所示的所有部件;此外,网络设备3600还可以包括图36中没有示出的部件,可以参考现有技术。
由上述实施例可知,通过发送用于生成抢占缓存状态报告的信息,第一IAB节点能够基于该信息中的至少一部分生成抢占缓存状态报告,从而能够实现实施例6和/或实施例7中记载的技术效果。
实施例11
本发明实施例提供了一种通信系统,该通信系统包括实施例9所述的网络设备和/或实施例10所述的网络设备。
图37是本申请实施例11的通信系统的一示意图。如图37所示,通信系统3700包括:第一IAB节点3701、第一IAB节点的子IAB节点3702、第一IAB节点服务的终端设备3703、第一IAB节点的父IAB节点3704以及IAB宿主节点3705。
例如,第一IAB节点3701可以是实施例9所述的网络设备,和/或,IAB宿主节点3705可以是实施例10所述的网络设备。
图38是本申请实施例11的通信系统的另一示意图。如图38所示,通信系统3800采用的是EN-DC构架,通信系统3800包括:第一IAB节点3801、第一IAB节点的子IAB节点3802、第一IAB节点服务的终端设备3803、IAB宿主节点3804以及MeNB3805。第一IAB节点3801可以通过IAB宿主节点3804以及MeNB 3805接入网络。
例如,第一IAB节点3801可以是实施例9所述的网络设备,和/或,IAB宿主节点3804可以是实施例10所述的网络设备。
图39是本申请实施例11的通信系统的又一示意图。如图39所示,通信系统3900采用的是NR-DC构架,通信系统3900包括:第一IAB节点3901、第一IAB节点的子IAB节点3902、第一IAB节点服务的终端设备3903、第一IAB节点的第一父IAB节点3904和第二父IAB节点3905、IAB宿主节点3906。第一IAB节点3901可以通过第一父IAB节点3904和第二父IAB节点3905接入网络。
例如,第一IAB节点3901可以是实施例9所述的网络设备,和/或,IAB宿主节点3906可以是实施例10所述的网络设备。
以上是对应用本申请实施例的抢占缓存状态报告的生成方法及装置的IAB架构的示例,其也可以适用于其他各种IAB架构下的通信系统结构。
由上述实施例可知,通过限制上报抢占缓存状态报告中的逻辑信道组和/或限制逻辑信道组的抢占缓存状态报告的触发,能够避免不必要的抢占缓存状态报告上报,从而避免一些IAB节点上报比实际的数据量大的值;和/或,根据从子IAB节点或终端设备收到的第一缓存状态报告里的缓存大小和/或提供给子IAB节点或终端设备的UL授权的UL-SCH资源大小,计算预期到达第一IAB节点的IAB-MT处的数据量,使得不同产商对抢占缓存状态报告中指示的预期到达IAB节点的IAB-MT处的数据量的理解是一致的,并避免一些IAB节点上报比实际的数据量大的值,从而避免对IAB节点的父IAB节点上的调度决策造成坏的影响,以及可能造成的IAB节点间竞相尽可能早地请求更大的UL授权的后果;因此,能够保证网络范围内的高效和公平。
本发明以上的装置和方法可以由硬件实现,也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序,当该程序被逻辑部件所执行时,能够使该逻辑部件实现上文所述的装置或构成部件,或使该逻辑部件实现上文所述的各种方法或步骤。逻辑部件例如现场可编程逻辑部件、微处理器、计算机中使用的处理器等。本发明还涉及用于存储以上程序的存储介质,如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本申请实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如,图32中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合,既可以对应于计算机程序流程的各个软件模块,亦可以对应于各个硬件模块。这些软件模块,可以分别对应于图11中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息;或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中,也可以存储在可插入移动终端的存储卡中。例如,若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置,则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图32中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合,可以实现为用于执行本发明所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图32描述的功能方框中的一个或多个和/或功能方框的一个或多个组合,还可以实现为计算设备的组合,例如,DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述,但本领域技术人员应该清楚,这些描述都是示例性的,并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范围内。
根据本申请实施例公开的各种实施方式,还公开了如下附记:
附记一、
1、一种抢占缓存状态报告(P-BSR)的生成装置,所述装置应用于第一IAB节点,所述装置包括:
第一接收单元,其用于从所述第一IAB节点的子IAB节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,第一提供单元,其用于向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及
第一限制单元,其用于限制上报抢占缓存状态报告中的逻辑信道组,和/或,第二限制单元,其用于限制逻辑信道组的抢占缓存状态报告的触发。
2、根据附记1所述的装置,其中,所述第一限制单元用于在抢占缓存状态报告中上报满足第一条件的逻辑信道组的数据量,
所述满足第一条件的逻辑信道组包括以下逻辑信道组中的至少一种:
所述第一IAB节点的IAB-MT处预期有数据到达的所有逻辑信道组;
所述第一IAB节点的IAB-MT处预期有数据到达且预期到达所述第一IAB节点的IAB-MT处的数据量大于第一阈值的逻辑信道组;
所述第一IAB节点的IAB-MT处预期有数据到达且预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第一参数的逻辑信道组;
所述第一IAB节点的IAB-MT处预期有数据到达且在第一期间预期到达所述第 一IAB节点的IAB-MT处的数据量的变化大于第二参数的逻辑信道组;
所述第一IAB节点的IAB-MT处预期有数据到达且上一个包含抢占缓存状态报告的MAC PDU发送后,预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第三参数的逻辑信道组;
预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第一参数的逻辑信道组;
在第一期间预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第二参数的逻辑信道组;以及
上一个包含抢占缓存状态报告的MAC PDU发送后,预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第三参数的逻辑信道组。
3、根据附记1所述的装置,其中,所述第二限制单元包括以下中的至少一个:
第三限制单元,其用于基于第一定时器来限制逻辑信道组的抢占缓存状态报告的触发;
第四限制单元,其用于基于预期到达所述第一IAB节点的IAB-MT处的数据量来限制逻辑信道组的抢占缓存状态报告的触发;以及
第五限制单元,其用于当满足第二条件时,取消触发的抢占缓存状态报告。
4、根据附记3所述的装置,其中,所述第三限制单元用于,
当所述第一定时器正在运行时,与所述第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将不会被触发;或者,
至少或仅当所述第一定时器没有运行或未配置时,与所述第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将会被触发。
5、根据附记3或4所述的装置,其中,
所述第一定时器的参数由所述第一IAB节点的IAB宿主节点配置。
6、根据附记5所述的装置,其中,
所述第一定时器的参数是对应于逻辑信道组的。
7、根据附记5或6所述的装置,其中,
所述第一定时器的参数是pBSR-ProhibitTimer。
8、根据附记3-7中的任一项所述的装置,其中,
当满足第三条件时,所述第一定时器启动;
所述第三条件包括以下条件中的至少一个:
与所述第一定时器对应的逻辑信道组所对应的抢占缓存状态报告被触发;
所述第一IAB节点的IAB-MT的MAC实体指示复用组装过程生成抢占缓存状态报告MAC CE;
对于用于抢占缓存状态报告MAC CE的传输的HARQ进程,收到使用C-RNTI寻址的、为新传指示上行授权的一个PDCCH;
抢占缓存状态报告MAC CE被发送;以及
一个包括抢占缓存状态报告MAC CE的MAC PDU被发送。
9、根据附记3-8中的任一项所述的装置,其中,
当满足第四条件时,所述第一定时器停止,
所述第四条件包括以下条件中的至少一个:
所述第一IAB节点的IAB-MT的MAC实体重启;
所述第一定时器的参数或包括所述第一定时器的参数的IE重配置;
当所述逻辑信道组包括的逻辑信道关联的小区是辅小区或关联的小区不包括特殊小区时,所在辅小区去激活;以及
进行BWP切换。
10、根据附记3所述的装置,其中,所述第四限制单元用于,
当一个逻辑信道组的所述数据量小于第二阈值时,与所述逻辑信道组所对应的抢占缓存状态报告将不会被触发;或者,
至少或仅当一个逻辑信道组的所述数据量大于或等于第二阈值时,与所述逻辑信道组所对应的抢占缓存状态报告将会被触发。
11、根据附记10所述的装置,其中,
所述第二阈值由所述第一IAB节点的IAB宿主节点配置。
12、根据附记10或11所述的装置,其中,
所述第二阈值是对应于MT或逻辑信道组的。
13、根据附记10-12中的任一项所述的装置,其中,
所述第二阈值是bufferSize-Threshold或者是dataVolume-Threshold。
14、根据附记3所述的装置,其中,所述第二条件包括以下条件中的至少一个:
第一定时器的参数和/或第二阈值被重配置;
第一定时器的参数和/或第二阈值被重配置为更大的值;
BWP切换或MAC重启或发生RLF;
收到来自所述第一IAB节点的父IAB节点的Type-4或Type-2或Type-3的无线链路失败通知;
收到重路由或本地重路由或应用条件切换(CHO)配置的指示;
重路由或本地重路由;以及
属于所述第一IAB节点的DU的SI里或所述第一IAB节点的父节点的SI里未配置iab-Support。
15、根据附记2-3、10-13中的任一项所述的装置,其中,所述装置还包括:
第一确定单元,其用于基于实现确定预期到达所述第一IAB节点的IAB-MT处的数据量,或者,
第一计算单元,其用于根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,和/或,
第二计算单元,其用于根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
16、根据附记15所述的装置,其中,所述第一计算单元包括:
第三计算单元,其用于根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量;以及
第四计算单元,其用于根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
17、根据附记16所述的装置,其中,所述第三计算单元使用所述第一缓存状态报告里的一个缓存大小域的缓存大小水平表格里的索引对应的缓存大小值的最大值、最小值或中间值,作为所述逻辑信道组的可用数据量。
18、根据附记16或17所述的装置,其中,所述第四计算单元将所述逻辑信道组的可用数据量减去当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
19、根据附记16-18中的任一项所述的装置,其中,作为所述第三计算单元的所 述第一IAB节点的IAB-DU的MAC实体或所述第一IAB节点的IAB-MT的MAC实体根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量。
20、根据附记16-19中的任一项所述的装置,其中,所述第四计算单元包括第一指示单元和第五计算单元,
作为所述第一指示单元的所述第一IAB节点的IAB-MT的RLC层向所述第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;
作为所述第五计算单元的所述第一IAB节点的IAB-MT的MAC实体将所述逻辑信道组的可用数据量减去所述当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
21、根据附记16-19中的任一项所述的装置,其中,所述第四计算单元包括第二指示单元、第六计算单元和第七计算单元,
作为所述第二指示单元的所述第一IAB节点的IAB-MT的MAC层向所述第一IAB节点的IAB-MT的RLC层指示所述逻辑信道组的可用数据量;
作为所述第六计算单元的所述第一IAB节点的IAB-MT的RLC层将所述逻辑信道组的可用数据量减去当前可用的数据量,并将计算结果指示给所述第一IAB节点的IAB-MT的MAC层;
作为所述第七计算单元的所述第一IAB节点的IAB-MT的MAC实体将所述计算结果作为所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
22、根据附记15所述的装置,其中,所述第二计算单元包括:
第八计算单元,其用于根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小;
第九计算单元,其用于根据能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,计算所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量;以及
第十计算单元,其用于根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
23、根据附记22所述的装置,其中,所述第十计算单元将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去当前可用的数据量,得到预期到达所述第一IAB节点的IAB-MT处的数据量。
24、根据附记22或23所述的装置,其中,作为所述第八计算单元的所述第一IAB节点的IAB-DU的MAC实体或所述第一IAB节点的IAB-MT的MAC实体根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小。
25、根据附记22-24中的任一项所述的装置,其中,所述第十计算单元包括第三指示单元和第十一计算单元,
作为第三指示单元的所述第一IAB节点的IAB-MT的RLC层向所述第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;
作为第十一计算单元的所述第一IAB节点的IAB-MT的MAC实体将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去所述当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
26、根据附记22-24中的任一项所述的装置,其中,所述第十计算单元包括第四指示单元、第十二计算单元以及第十三计算单元,
作为所述第四指示单元的所述第一IAB节点的IAB-MT的MAC层向所述第一IAB节点的IAB-MT的RLC层指示所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量;
作为第十二计算单元的所述第一IAB节点的IAB-MT的RLC层将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去当前可用的数据量,并将计算结果指示给所述第一IAB节点的IAB-MT的MAC层;
作为第十三计算单元的所述第一IAB节点的IAB-MT的MAC实体将所述计算结果作为所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
27、根据附记15-26中的任一项所述的装置,其中,
所述第一计算单元基于逻辑信道组的映射关系,并根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,和/或,
所述第二计算单元基于逻辑信道组的映射关系,并根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
28、根据附记27所述的装置,其中,所述逻辑信道组的映射关系,包括:
所述逻辑信道组是1对1映射的;或者,
所述逻辑信道组的映射基于所述第一IAB节点的实现;或者,
所述逻辑信道组的映射是基于跳数或CQI或5QI或PDB的逻辑信道组映射。
29、根据附记15-28中的任一项所述的装置,其中,所述第一计算单元在从将要建立包含抢占缓存状态报告的MAC PDU时前的第二期间,或者从发送上一个包含抢占缓存状态报告的MAC PDU后的第三期间收到了来自所述子IAB节点或所述终端设备的第一缓存状态报告的情况下,根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
30、根据附记15-28中的任一项所述的装置,其中,所述第二计算单元在从将要建立包含抢占缓存状态报告的MAC PDU时前的第四期间,或者从发送一个逻辑信道组的上一个上行链路授权后的第五期间向所述子IAB节点或所述终端设备提供上行链路授权的情况下,根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
31、根据附记15-30中的任一项所述的装置,其中,所述装置还包括:
第二确定单元,其用于当预期到达所述第一IAB节点的IAB-MT处的数据量是负数时,将其认为是0。
32、根据附记15-31中的任一项所述的装置,其中,
对于NR-DC架构,当属于相同入口逻辑信道组(ingress LCG)的两个入口回程(ingress BH)RLC信道分别被映射到MCG出口和SCG出口时,所述逻辑信道组对应的数据量看作是如下中的一种:
仅属于MCG的数据量;
仅属于SCG的数据量;
同时属于MCG和SCG的数据量;
由所述第一IAB节点的IAB宿主节点配置,仅属于MCG的数据量,或仅属于SCG的数据量,或同时属于MCG和SCG的数据量;
由所述第一IAB节点的IAB宿主节点配置一个比例,所述比例的数据量仅属于MCG的数据量,或所述比例的数据量仅属于SCG的数据量,或所述比例的数据量同 时属于MCG和SCG的数据量;
基于跳数或CQI或5QI或PDB,属于MCG和/或SCG。
33、一种抢占缓存状态报告(P-BSR)的生成装置,所述装置应用于第一IAB节点,所述装置包括:
第二接收单元,其用于从所述第一IAB节点的子IAB节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,第二提供单元,其用于向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及
第一计算单元,其用于根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,和/或,
第二计算单元,其用于根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
34、根据附记33所述的装置,其中,所述第一计算单元包括:
第三计算单元,其用于根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量;以及
第四计算单元,其用于根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
35、根据附记34所述的装置,其中,所述第三计算单元使用所述第一缓存状态报告里的一个缓存大小域的缓存大小水平表格里的索引对应的缓存大小值的最大值、最小值或中间值,作为所述逻辑信道组的可用数据量。
36、根据附记34或35所述的装置,其中,所述第四计算单元将所述逻辑信道组的可用数据量减去当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
37、根据附记34-36中的任一项所述的装置,其中,作为所述第三计算单元的所述第一IAB节点的IAB-DU的MAC实体或所述第一IAB节点的IAB-MT的MAC实体根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量。
38、根据附记34-37中的任一项所述的装置,其中,所述第四计算单元包括第一指示单元和第五计算单元,
作为所述第一指示单元的所述第一IAB节点的IAB-MT的RLC层向所述第一 IAB节点的IAB-MT的MAC层指示当前可用的数据量;
作为所述第五计算单元的所述第一IAB节点的IAB-MT的MAC实体将所述逻辑信道组的可用数据量减去所述当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
39、根据附记34-37中的任一项所述的装置,其中,所述第四计算单元包括第二指示单元、第六计算单元和第七计算单元,
作为所述第二指示单元的所述第一IAB节点的IAB-MT的MAC层向所述第一IAB节点的IAB-MT的RLC层指示所述逻辑信道组的可用数据量;
作为所述第六计算单元的所述第一IAB节点的IAB-MT的RLC层将所述逻辑信道组的可用数据量减去当前可用的数据量,并将计算结果指示给所述第一IAB节点的IAB-MT的MAC层;
作为所述第七计算单元的所述第一IAB节点的IAB-MT的MAC实体将所述计算结果作为所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
40、根据附记33所述的装置,其中,所述第二计算单元包括:
第八计算单元,其用于根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小;
第九计算单元,其用于根据能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,计算所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量;以及
第十计算单元,其用于根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
41、根据附记40所述的装置,其中,所述第十计算单元将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去当前可用的数据量,得到预期到达所述第一IAB节点的IAB-MT处的数据量。
42、根据附记40或41所述的装置,其中,作为所述第八计算单元的所述第一IAB节点的IAB-DU的MAC实体或所述第一IAB节点的IAB-MT的MAC实体根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小。
43、根据附记40-42中的任一项所述的装置,其中,所述第十计算单元包括第三 指示单元和第十一计算单元,
作为第三指示单元的所述第一IAB节点的IAB-MT的RLC层向所述第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;
作为第十一计算单元的所述第一IAB节点的IAB-MT的MAC实体将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去所述当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
44、根据附记40-42中的任一项所述的装置,其中,所述第十计算单元包括第四指示单元、第十二计算单元以及第十三计算单元,
作为所述第四指示单元的所述第一IAB节点的IAB-MT的MAC层向所述第一IAB节点的IAB-MT的RLC层指示所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量;
作为第十二计算单元的所述第一IAB节点的IAB-MT的RLC层将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去当前可用的数据量,并将计算结果指示给所述第一IAB节点的IAB-MT的MAC层;
作为第十三计算单元的所述第一IAB节点的IAB-MT的MAC实体将所述计算结果作为所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
45、根据附记33-44中的任一项所述的装置,其中,
所述第一计算单元基于逻辑信道组的映射关系,并根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,和/或,
所述第二计算单元基于逻辑信道组的映射关系,并根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
46、根据附记45所述的装置,其中,所述逻辑信道组的映射关系,包括:
所述逻辑信道组是1对1映射的;或者,
所述逻辑信道组的映射基于所述第一IAB节点的实现;或者,
所述逻辑信道组的映射是基于跳数或CQI或5QI或PDB的逻辑信道组映射。
47、根据附记33-46中的任一项所述的装置,其中,所述第一计算单元在从将要建立包含抢占缓存状态报告的MAC PDU时前的第二期间,或者从发送上一个包含抢 占缓存状态报告的MAC PDU后的第三期间收到了来自所述子IAB节点或所述终端设备的第一缓存状态报告的情况下,根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
48、根据附记33-46中的任一项所述的装置,其中,所述第二计算单元在从将要建立包含抢占缓存状态报告的MAC PDU时前的第四期间,或者从发送一个逻辑信道组的上一个上行链路授权后的第五期间向所述子IAB节点或所述终端设备提供上行链路授权的情况下,根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
49、根据附记33-48中的任一项所述的装置,其中,所述装置还包括:
第二确定单元,其用于当预期到达所述第一IAB节点的IAB-MT处的数据量是负数时,将其认为是0。
50、根据附记33-49中的任一项所述的装置,其中,
对于NR-DC架构,当属于相同入口逻辑信道组(ingress LCG)的两个入口回程(ingress BH)RLC信道分别被映射到MCG出口和SCG出口,所述逻辑信道组对应的数据量看作是如下中的一种:
仅属于MCG的数据量;
仅属于SCG的数据量;
同时属于MCG和SCG的数据量;
由所述第一IAB节点的IAB宿主节点配置,仅属于MCG的数据量,或仅属于SCG的数据量,或同时属于MCG和SCG的数据量;
由所述第一IAB节点的IAB宿主节点配置一个比例,所述比例的数据量仅属于MCG的数据量,或所述比例的数据量仅属于SCG的数据量,或所述比例的数据量同时属于MCG和SCG的数据量;
基于跳数或CQI或5QI或PDB,属于MCG和/或SCG。
51、一种用于生成抢占缓存状态报告的信息的发送装置,所述装置应用于第一IAB节点的IAB宿主节点,所述装置包括:
第一发送单元,其用于发送用于生成抢占缓存状态报告的信息,
所述用于生成抢占缓存状态报告的信息包括第一定时器的参数、第一参数、第二参数、第三参数、第一阈值、第二阈值、第一期间、第二期间、第三期间、第四期间、第五期间、第一条件、第二条件、第三条件以及第四条件中的至少一个。
52、根据附记51所述的装置,其中,
所述第一定时器的参数是对应于逻辑信道组的。
53、根据附记51或52所述的装置,其中,
所述第一定时器的参数是pBSR-ProhibitTimer。
54、根据附记51所述的装置,其中,
所述第二阈值是对应于MT或逻辑信道组的。
55、根据附记51或54所述的装置,其中,
所述第二阈值是bufferSize-Threshold或者是dataVolume-Threshold。
56、根据附记51-55中的任一项所述的装置,其中,
所述用于生成抢占缓存状态报告的信息由作为第一发送单元的所述IAB宿主节点的RRC层发送。
57、一种网络设备,所述网络设备是第一IAB节点,所述网络设备包括根据附记1-50中的任一项所述的装置。
58、一种网络设备,所述网络设备是第一IAB节点的IAB宿主节点,所述网络设备包括根据附记51-56中的任一项所述的装置。
59、一种通信系统,所述通信系统包括根据附记57所述的网络设备和/或根据附记58所述的网络设备。
附记二、
1、一种抢占缓存状态报告(P-BSR)的生成方法,所述方法应用于第一IAB节点,所述方法包括:
从所述第一IAB节点的子IAB节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及
限制上报抢占缓存状态报告中的逻辑信道组,和/或,限制逻辑信道组的抢占缓存状态报告的触发。
2、根据附记1所述的方法,其中,限制上报抢占缓存状态报告中的逻辑信道组,包括:在抢占缓存状态报告中上报满足第一条件的逻辑信道组的数据量,
所述满足第一条件的逻辑信道组包括以下逻辑信道组中的至少一种:
所述第一IAB节点的IAB-MT处预期有数据到达的所有逻辑信道组;
所述第一IAB节点的IAB-MT处预期有数据到达且预期到达所述第一IAB节点的IAB-MT处的数据量大于第一阈值的逻辑信道组;
所述第一IAB节点的IAB-MT处预期有数据到达且预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第一参数的逻辑信道组;
所述第一IAB节点的IAB-MT处预期有数据到达且在第一期间预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第二参数的逻辑信道组;
所述第一IAB节点的IAB-MT处预期有数据到达且上一个包含抢占缓存状态报告的MAC PDU发送后,预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第三参数的逻辑信道组;
预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第一参数的逻辑信道组;
在第一期间预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第二参数的逻辑信道组;以及
上一个包含抢占缓存状态报告的MAC PDU发送后,预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第三参数的逻辑信道组。
3、根据附记1所述的方法,其中,限制逻辑信道组的抢占缓存状态报告的触发,包括以下中的至少一个:
基于第一定时器来限制逻辑信道组的抢占缓存状态报告的触发;
基于预期到达所述第一IAB节点的IAB-MT处的数据量来限制逻辑信道组的抢占缓存状态报告的触发;以及
当满足第二条件时,取消触发的抢占缓存状态报告。
4、根据附记3所述的方法,其中,基于第一定时器来限制逻辑信道组的抢占缓存状态报告的触发,包括:
当所述第一定时器正在运行时,与所述第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将不会被触发;或者,
至少或仅当所述第一定时器没有运行或未配置时,与所述第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将会被触发。
5、根据附记3或4所述的方法,其中,
所述第一定时器的参数由所述第一IAB节点的IAB宿主节点配置。
6、根据附记5所述的方法,其中,
所述第一定时器的参数是对应于逻辑信道组的。
7、根据附记5或6所述的方法,其中,
所述第一定时器的参数是pBSR-ProhibitTimer。
8、根据附记3-7中的任一项所述的方法,其中,
当满足第三条件时,所述第一定时器启动;
所述第三条件包括以下条件中的至少一个:
与所述第一定时器对应的逻辑信道组所对应的抢占缓存状态报告被触发;
所述第一IAB节点的IAB-MT的MAC实体指示复用组装过程生成抢占缓存状态报告MAC CE;
对于用于抢占缓存状态报告MAC CE的传输的HARQ进程,收到使用C-RNTI寻址的、为新传指示上行授权的一个PDCCH;
抢占缓存状态报告MAC CE被发送;以及
一个包括抢占缓存状态报告MAC CE的MAC PDU被发送。
9、根据附记3-8中的任一项所述的方法,其中,
当满足第四条件时,所述第一定时器停止,
所述第四条件包括以下条件中的至少一个:
所述第一IAB节点的IAB-MT的MAC实体重启;
所述第一定时器的参数或包括所述第一定时器的参数的IE重配置;
当所述逻辑信道组包括的逻辑信道关联的小区是辅小区或关联的小区不包括特殊小区时,所在辅小区去激活;以及
进行BWP切换。
10、根据附记3所述的方法,其中,基于预期到达所述第一IAB节点的IAB-MT处的数据量来限制逻辑信道组的抢占缓存状态报告的触发,包括:
当一个逻辑信道组的所述数据量小于第二阈值时,与所述逻辑信道组所对应的抢 占缓存状态报告将不会被触发;或者,
至少或仅当一个逻辑信道组的所述数据量大于或等于第二阈值时,与所述逻辑信道组所对应的抢占缓存状态报告将会被触发。
11、根据附记10所述的方法,其中,
所述第二阈值由所述第一IAB节点的IAB宿主节点配置。
12、根据附记10或11所述的方法,其中,
所述第二阈值是对应于MT或逻辑信道组的。
13、根据附记10-12中的任一项所述的方法,其中,
所述第二阈值是bufferSize-Threshold或者是dataVolume-Threshold。
14、根据附记3所述的方法,其中,所述第二条件包括以下条件中的至少一个:
第一定时器的参数和/或第二阈值被重配置;
第一定时器的参数和/或第二阈值被重配置为更大的值;
BWP切换或MAC重启或发生RLF;
收到来自所述第一IAB节点的父IAB节点的Type-4或Type-2或Type-3的无线链路失败通知;
收到重路由或本地重路由或应用条件切换(CHO)配置的指示;
重路由或本地重路由;以及
属于所述第一IAB节点的DU的SI里或所述第一IAB节点的父节点的SI里未配置iab-Support。
15、根据附记2-3、10-13中的任一项所述的方法,其中,所述方法还包括:
基于实现确定预期到达所述第一IAB节点的IAB-MT处的数据量,或者,
根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,和/或,
根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
16、根据附记15所述的方法,其中,根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量; 以及
根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
17、根据附记16所述的方法,其中,根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量,包括:
使用所述第一缓存状态报告里的一个缓存大小域的缓存大小水平表格里的索引对应的缓存大小值的最大值、最小值或中间值,作为所述逻辑信道组的可用数据量。
18、根据附记16或17所述的方法,其中,根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
将所述逻辑信道组的可用数据量减去当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
19、根据附记16-18中的任一项所述的方法,其中,根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量,包括:
所述第一IAB节点的IAB-DU的MAC实体或所述第一IAB节点的IAB-MT的MAC实体根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量。
20、根据附记16-19中的任一项所述的方法,其中,根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
所述第一IAB节点的IAB-MT的RLC层向所述第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;以及
所述第一IAB节点的IAB-MT的MAC实体将所述逻辑信道组的可用数据量减去所述当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
21、根据附记16-19中的任一项所述的方法,其中,根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
所述第一IAB节点的IAB-MT的MAC层向所述第一IAB节点的IAB-MT的RLC层指示所述逻辑信道组的可用数据量;
所述第一IAB节点的IAB-MT的RLC层将所述逻辑信道组的可用数据量减去当前可用的数据量,并将计算结果指示给所述第一IAB节点的IAB-MT的MAC层;以及
所述第一IAB节点的IAB-MT的MAC实体将所述计算结果作为所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
22、根据附记15所述的方法,其中,根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小;
根据能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,计算所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量;以及
根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
23、根据附记22所述的方法,其中,根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去当前可用的数据量,得到预期到达所述第一IAB节点的IAB-MT处的数据量。
24、根据附记22或23所述的方法,其中,根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,包括:
所述第一IAB节点的IAB-DU的MAC实体或所述第一IAB节点的IAB-MT的MAC实体根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小。
25、根据附记22-24中的任一项所述的方法,其中,根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
所述第一IAB节点的IAB-MT的RLC层向所述第一IAB节点的IAB-MT的MAC 层指示当前可用的数据量;以及
所述第一IAB节点的IAB-MT的MAC实体将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去所述当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
26、根据附记22-24中的任一项所述的方法,其中,根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
所述第一IAB节点的IAB-MT的MAC层向所述第一IAB节点的IAB-MT的RLC层指示所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量;
所述第一IAB节点的IAB-MT的RLC层将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去当前可用的数据量,并将计算结果指示给所述第一IAB节点的IAB-MT的MAC层;以及
所述第一IAB节点的IAB-MT的MAC实体将所述计算结果作为所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
27、根据附记15-26中的任一项所述的方法,其中,
根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
基于逻辑信道组的映射关系,并根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,和/或,
根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
基于逻辑信道组的映射关系,并根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
28、根据附记27所述的方法,其中,所述逻辑信道组的映射关系,包括:
所述逻辑信道组是1对1映射的;或者,
所述逻辑信道组的映射基于所述第一IAB节点的实现;或者,
所述逻辑信道组的映射是基于跳数或CQI或5QI或PDB的逻辑信道组映射。
29、根据附记15-28中的任一项所述的方法,其中,根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
在从将要建立包含抢占缓存状态报告的MAC PDU时前的第二期间,或者从发送上一个包含抢占缓存状态报告的MAC PDU后的第三期间收到了来自所述子IAB节点或所述终端设备的第一缓存状态报告的情况下,根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
30、根据附记15-28中的任一项所述的方法,其中,根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
在从将要建立包含抢占缓存状态报告的MAC PDU时前的第四期间,或者从发送一个逻辑信道组的上一个上行链路授权后的第五期间向所述子IAB节点或所述终端设备提供上行链路授权的情况下,根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
31、根据附记15-30中的任一项所述的方法,其中,所述方法还包括:
当预期到达所述第一IAB节点的IAB-MT处的数据量是负数时,将其认为是0。
32、根据附记15-31中的任一项所述的方法,其中,
对于NR-DC架构,当属于相同入口逻辑信道组(ingress LCG)的两个入口回程(ingress BH)RLC信道分别被映射到MCG出口和SCG出口时,所述逻辑信道组对应的数据量看作是如下中的一种:
仅属于MCG的数据量;
仅属于SCG的数据量;
同时属于MCG和SCG的数据量;
由所述第一IAB节点的IAB宿主节点配置,仅属于MCG的数据量,或仅属于SCG的数据量,或同时属于MCG和SCG的数据量;
由所述第一IAB节点的IAB宿主节点配置一个比例,所述比例的数据量仅属于 MCG的数据量,或所述比例的数据量仅属于SCG的数据量,或所述比例的数据量同时属于MCG和SCG的数据量;
基于跳数或CQI或5QI或PDB,属于MCG和/或SCG。
33、一种抢占缓存状态报告(P-BSR)的生成方法,所述方法应用于第一IAB节点,所述方法包括:
从所述第一IAB节点的子IAB节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及
根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,和/或,根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
34、根据附记33所述的方法,其中,根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量;以及
根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
35、根据附记34所述的方法,其中,根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量,包括:
使用所述第一缓存状态报告里的一个缓存大小域的缓存大小水平表格里的索引对应的缓存大小值的最大值、最小值或中间值,作为所述逻辑信道组的可用数据量。
36、根据附记34或35所述的方法,其中,根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
将所述逻辑信道组的可用数据量减去当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
37、根据附记34-36中的任一项所述的方法,其中,根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量,包括:
所述第一IAB节点的IAB-DU的MAC实体或所述第一IAB节点的IAB-MT的MAC实体根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量。
38、根据附记34-37中的任一项所述的方法,其中,根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
所述第一IAB节点的IAB-MT的RLC层向所述第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;以及
所述第一IAB节点的IAB-MT的MAC实体将所述逻辑信道组的可用数据量减去所述当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
39、根据附记34-37中的任一项所述的方法,其中,根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
所述第一IAB节点的IAB-MT的MAC层向所述第一IAB节点的IAB-MT的RLC层指示所述逻辑信道组的可用数据量;
所述第一IAB节点的IAB-MT的RLC层将所述逻辑信道组的可用数据量减去当前可用的数据量,并将计算结果指示给所述第一IAB节点的IAB-MT的MAC层;以及
所述第一IAB节点的IAB-MT的MAC实体将所述计算结果作为所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
40、根据附记33所述的方法,其中,根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小;
根据能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,计算所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量;以及
根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期 到达所述第一IAB节点的IAB-MT处的数据量。
41、附记40所述的方法,其中,根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去当前可用的数据量,得到预期到达所述第一IAB节点的IAB-MT处的数据量。
42、根据附记40或41所述的方法,其中,根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,包括:
所述第一IAB节点的IAB-DU的MAC实体或所述第一IAB节点的IAB-MT的MAC实体根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小。
43、根据附记40-42中的任一项所述的方法,其中,根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
所述第一IAB节点的IAB-MT的RLC层向所述第一IAB节点的IAB-MT的MAC层指示当前可用的数据量;以及
所述第一IAB节点的IAB-MT的MAC实体将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去所述当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
44、根据附记40-42中的任一项所述的方法,其中,根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
所述第一IAB节点的IAB-MT的MAC层向所述第一IAB节点的IAB-MT的RLC层指示所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量;
所述第一IAB节点的IAB-MT的RLC层将所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量减去当前可用的数据量,并将计算结果指示给所述第一IAB节点的IAB-MT的MAC层;以及
所述第一IAB节点的IAB-MT的MAC实体将所述计算结果作为所述逻辑信道组 的预期到达所述第一IAB节点的IAB-MT处的数据量。
45、根据附记33-44中的任一项所述的方法,其中,根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,和/或,根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
基于逻辑信道组的映射关系,并根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,和/或,
基于逻辑信道组的映射关系,并根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
46、根据附记45所述的方法,其中,所述逻辑信道组的映射关系,包括:
所述逻辑信道组是1对1映射的;或者,
所述逻辑信道组的映射基于所述第一IAB节点的实现;或者,
所述逻辑信道组的映射是基于跳数或CQI或5QI或PDB的逻辑信道组映射。
47、根据附记33-46中的任一项所述的方法,其中,根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
在从将要建立包含抢占缓存状态报告的MAC PDU时前的第二期间,或者从发送上一个包含抢占缓存状态报告的MAC PDU后的第三期间收到了来自所述子IAB节点或所述终端设备的第一缓存状态报告的情况下,根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
48、根据附记33-46中的任一项所述的方法,其中,根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,包括:
在从将要建立包含抢占缓存状态报告的MAC PDU时前的第四期间,或者从发送一个逻辑信道组的上一个上行链路授权后的第五期间向所述子IAB节点或所述终端设备提供上行链路授权的情况下,根据提供给所述子IAB节点或所述终端设备的上 行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
49、根据附记33-48中的任一项所述的方法,其中,所述方法还包括:
当预期到达所述第一IAB节点的IAB-MT处的数据量是负数时,将其认为是0。
50、根据附记33-49中的任一项所述的方法,其中,
对于NR-DC架构,当属于相同入口逻辑信道组(ingress LCG)的两个入口回程(ingress BH)RLC信道分别被映射到MCG出口和SCG出口,所述逻辑信道组对应的数据量看作是如下中的一种:
仅属于MCG的数据量;
仅属于SCG的数据量;
同时属于MCG和SCG的数据量;
由所述第一IAB节点的IAB宿主节点配置,仅属于MCG的数据量,或仅属于SCG的数据量,或同时属于MCG和SCG的数据量;
由所述第一IAB节点的IAB宿主节点配置一个比例,所述比例的数据量仅属于MCG的数据量,或所述比例的数据量仅属于SCG的数据量,或所述比例的数据量同时属于MCG和SCG的数据量;
基于跳数或CQI或5QI或PDB,属于MCG和/或SCG。
51、一种用于生成抢占缓存状态报告的信息的发送方法,所述方法应用于第一IAB节点的IAB宿主节点,所述方法包括:
发送用于生成抢占缓存状态报告的信息,
所述用于生成抢占缓存状态报告的信息包括第一定时器的参数、第一参数、第二参数、第三参数、第一阈值、第二阈值、第一期间、第二期间、第三期间、第四期间、第五期间、第一条件、第二条件、第三条件以及第四条件中的至少一个。
52、根据附记51所述的方法,其中,
所述第一定时器的参数是对应于逻辑信道组的。
53、根据附记51或52所述的方法,其中,
所述第一定时器的参数是pBSR-ProhibitTimer。
54、根据附记51所述的方法,其中,
所述第二阈值是对应于MT或逻辑信道组的。
55、根据附记51或54所述的方法,其中,
所述第二阈值是bufferSize-Threshold或者是dataVolume-Threshold。
56、根据附记51-55中的任一项所述的方法,其中,
所述用于生成抢占缓存状态报告的信息由所述IAB宿主节点的RRC层发送。

Claims (20)

  1. 一种抢占缓存状态报告(P-BSR)的生成装置,所述装置应用于第一IAB节点,所述装置包括:
    第一接收单元,其用于从所述第一IAB节点的子IAB节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,第一提供单元,其用于向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及
    第一限制单元,其用于限制上报抢占缓存状态报告中的逻辑信道组,和/或,第二限制单元,其用于限制逻辑信道组的抢占缓存状态报告的触发。
  2. 根据权利要求1所述的装置,其中,所述第一限制单元用于在抢占缓存状态报告中上报满足第一条件的逻辑信道组的数据量,
    所述满足第一条件的逻辑信道组包括以下逻辑信道组中的至少一种:
    所述第一IAB节点的IAB-MT处预期有数据到达的所有逻辑信道组;
    所述第一IAB节点的IAB-MT处预期有数据到达且预期到达所述第一IAB节点的IAB-MT处的数据量大于第一阈值的逻辑信道组;
    所述第一IAB节点的IAB-MT处预期有数据到达且预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第一参数的逻辑信道组;
    所述第一IAB节点的IAB-MT处预期有数据到达且在第一期间预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第二参数的逻辑信道组;
    所述第一IAB节点的IAB-MT处预期有数据到达且上一个包含抢占缓存状态报告的MAC PDU发送后,预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第三参数的逻辑信道组;
    预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第一参数的逻辑信道组;
    在第一期间预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第二参数的逻辑信道组;以及
    上一个包含抢占缓存状态报告的MAC PDU发送后,预期到达所述第一IAB节点的IAB-MT处的数据量的变化大于第三参数的逻辑信道组。
  3. 根据权利要求1所述的装置,其中,所述第二限制单元包括以下中的至少一个:
    第三限制单元,其用于基于第一定时器来限制逻辑信道组的抢占缓存状态报告的触发;
    第四限制单元,其用于基于预期到达所述第一IAB节点的IAB-MT处的数据量来限制逻辑信道组的抢占缓存状态报告的触发;以及
    第五限制单元,其用于当满足第二条件时,取消触发的抢占缓存状态报告。
  4. 根据权利要求3所述的装置,其中,所述第三限制单元用于,
    当所述第一定时器正在运行时,与所述第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将不会被触发;或者,
    至少或仅当所述第一定时器没有运行或未配置时,与所述第一定时器对应的逻辑信道组所对应的抢占缓存状态报告将会被触发。
  5. 根据权利要求3所述的装置,其中,
    当满足第三条件时,所述第一定时器启动;
    所述第三条件包括以下条件中的至少一个:
    与所述第一定时器对应的逻辑信道组所对应的抢占缓存状态报告被触发;
    所述第一IAB节点的IAB-MT的MAC实体指示复用组装过程生成抢占缓存状态报告MAC CE;
    对于用于抢占缓存状态报告MAC CE的传输的HARQ进程,收到使用C-RNTI寻址的、为新传指示上行授权的一个PDCCH;
    抢占缓存状态报告MAC CE被发送;以及
    一个包括抢占缓存状态报告MAC CE的MAC PDU被发送。
  6. 根据权利要求3所述的装置,其中,
    当满足第四条件时,所述第一定时器停止,
    所述第四条件包括以下条件中的至少一个:
    所述第一IAB节点的IAB-MT的MAC实体重启;
    所述第一定时器的参数或包括所述第一定时器的参数的IE重配置;
    当所述逻辑信道组包括的逻辑信道关联的小区是辅小区或关联的小区不包括特殊小区时,所在辅小区去激活;以及
    进行BWP切换。
  7. 根据权利要求3所述的装置,其中,所述第四限制单元用于,
    当一个逻辑信道组的所述数据量小于第二阈值时,与所述逻辑信道组所对应的抢占缓存状态报告将不会被触发;或者,
    至少或仅当一个逻辑信道组的所述数据量大于或等于第二阈值时,与所述逻辑信道组所对应的抢占缓存状态报告将会被触发。
  8. 根据权利要求3所述的装置,其中,所述第二条件包括以下条件中的至少一个:
    第一定时器的参数和/或第二阈值被重配置;
    第一定时器的参数和/或第二阈值被重配置为更大的值;
    BWP切换或MAC重启或发生RLF;
    收到来自所述第一IAB节点的父IAB节点的Type-4或Type-2或Type-3的无线链路失败通知;
    收到重路由或本地重路由或应用条件切换(CHO)配置的指示;
    重路由或本地重路由;以及
    属于所述第一IAB节点的DU的SI里或所述第一IAB节点的父节点的SI里未配置iab-Support。
  9. 根据权利要求2所述的装置,其中,所述装置还包括:
    第一确定单元,其用于基于实现确定预期到达所述第一IAB节点的IAB-MT处的数据量,或者,
    第一计算单元,其用于根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量,和/或,
    第二计算单元,其用于根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
  10. 根据权利要求9所述的装置,其中,所述第一计算单元包括:
    第三计算单元,其用于根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量;以及
    第四计算单元,其用于根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
  11. 根据权利要求9所述的装置,其中,所述第二计算单元包括:
    第八计算单元,其用于根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小;
    第九计算单元,其用于根据能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,计算所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量;以及
    第十计算单元,其用于根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
  12. 一种抢占缓存状态报告(P-BSR)的生成装置,所述装置应用于第一IAB节点,所述装置包括:
    第二接收单元,其用于从所述第一IAB节点的子IAB节点或所述第一IAB节点服务的终端设备接收第一缓存状态报告,和/或,第二提供单元,其用于向所述子IAB节点或所述终端设备提供上行链路(UL)授权;以及
    第一计算单元,其用于根据从所述子IAB节点或所述终端设备收到的所述第一缓存状态报告里的缓存大小,和/或,
    第二计算单元,其用于根据提供给所述子IAB节点或所述终端设备的上行链路授权的上行共享信道(UL-SCH)资源大小,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
  13. 根据权利要求12所述的装置,其中,所述第一计算单元包括:
    第三计算单元,其用于根据所述第一缓存状态报告里的缓存大小域评估一个逻辑信道组的可用数据量;以及
    第四计算单元,其用于根据所述逻辑信道组的可用数据量,计算所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
  14. 根据权利要求13所述的装置,其中,所述第三计算单元使用所述第一缓存状态报告里的一个缓存大小域的缓存大小水平表格里的索引对应的缓存大小值的最大值、最小值或中间值,作为所述逻辑信道组的可用数据量。
  15. 根据权利要求13所述的装置,其中,所述第四计算单元将所述逻辑信道组 的可用数据量减去当前可用的数据量,得到所述逻辑信道组的预期到达所述第一IAB节点的IAB-MT处的数据量。
  16. 根据权利要求12所述的装置,其中,所述第二计算单元包括:
    第八计算单元,其用于根据一个上行链路授权里提供的上行共享信道资源,评估能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小;
    第九计算单元,其用于根据能够容纳的一个逻辑信道组的MAC SDUs及其子头的总大小,计算所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量;以及
    第十计算单元,其用于根据所述逻辑信道组的所有上行链路授权里提供的所述总大小的总量,计算预期到达所述第一IAB节点的IAB-MT处的数据量。
  17. 根据权利要求12所述的装置,其中,逻辑信道组的映射关系,包括:
    所述逻辑信道组是1对1映射的;或者,
    所述逻辑信道组的映射基于所述第一IAB节点的实现;或者,
    所述逻辑信道组的映射是基于跳数或CQI或5QI或PDB的逻辑信道组映射。
  18. 根据权利要求12所述的装置,其中,
    对于NR-DC架构,当属于相同入口逻辑信道组(ingress LCG)的两个入口回程(ingress BH)RLC信道分别被映射到MCG出口和SCG出口,所述逻辑信道组对应的数据量看作是如下中的一种:
    仅属于MCG的数据量;
    仅属于SCG的数据量;
    同时属于MCG和SCG的数据量;
    由所述第一IAB节点的IAB宿主节点配置,仅属于MCG的数据量,或仅属于SCG的数据量,或同时属于MCG和SCG的数据量;
    由所述第一IAB节点的IAB宿主节点配置一个比例,所述比例的数据量仅属于MCG的数据量,或所述比例的数据量仅属于SCG的数据量,或所述比例的数据量同时属于MCG和SCG的数据量;
    基于跳数或CQI或5QI或PDB,属于MCG和/或SCG。
  19. 一种用于生成抢占缓存状态报告的信息的发送装置,所述装置应用于第一IAB节点的IAB宿主节点,所述装置包括:
    第一发送单元,其用于发送用于生成抢占缓存状态报告的信息,
    所述用于生成抢占缓存状态报告的信息包括第一定时器的参数、第一参数、第二参数、第三参数、第一阈值、第二阈值、第一期间、第二期间、第三期间、第四期间、第五期间、第一条件、第二条件、第三条件以及第四条件中的至少一个。
  20. 根据权利要求19所述的装置,其中,
    所述用于生成抢占缓存状态报告的信息由作为第一发送单元的所述IAB宿主节点的RRC层发送。
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