WO2025208644A1 - Logic channel prioritization - Google Patents

Logic channel prioritization

Info

Publication number
WO2025208644A1
WO2025208644A1 PCT/CN2024/086267 CN2024086267W WO2025208644A1 WO 2025208644 A1 WO2025208644 A1 WO 2025208644A1 CN 2024086267 W CN2024086267 W CN 2024086267W WO 2025208644 A1 WO2025208644 A1 WO 2025208644A1
Authority
WO
WIPO (PCT)
Prior art keywords
lcp
lch
priorities
configuration
list
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/086267
Other languages
French (fr)
Inventor
Claudio Rosa
Chunli Wu
Fernando SANCHEZ MOYA
Carlos Santiago MOREJON GARCIA
Boyan Yanakiev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Original Assignee
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Shanghai Bell Co Ltd, Nokia Solutions and Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co Ltd
Priority to PCT/CN2024/086267 priority Critical patent/WO2025208644A1/en
Publication of WO2025208644A1 publication Critical patent/WO2025208644A1/en
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows

Definitions

  • a method comprises: receiving logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; receiving scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and transmitting the uplink transmission based on the indicated LCP configuration.
  • LCH logical channel
  • LCP logical channel prioritization
  • an apparatus comprising: means for receiving logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; means for receiving scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and means for transmitting the uplink transmission based on the indicated LCP configuration.
  • LCH logical channel
  • LCP logical channel prioritization
  • an apparatus comprising: means for transmitting logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; means for transmitting scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and means for receiving the uplink transmission.
  • LCH logical channel
  • LCP logical channel prioritization
  • a terminal device comprising: first receiving circuitry configured to receive logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; second receiving circuitry configured to receive scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and transmitting circuitry configured to transmit the uplink transmission based on the indicated LCP configuration.
  • LCH logical channel
  • LCP logical channel prioritization
  • FIG. 1 illustrates an example network environment in which some example embodiments of the present disclosure may be implemented
  • FIG. 2 illustrates a signaling chart illustrating an example communication process in accordance with some example embodiments of the present disclosure
  • FIG. 3 illustrates a schematic diagram illustrating the mapping between LCP configurations and LCH priorities in accordance with some embodiments of the present disclosure
  • FIG. 4 illustrates a flowchart of an example method implemented at a first device in accordance with some embodiments of the present disclosure
  • FIG. 5 illustrates a flowchart of an example method implemented at a second device in accordance with some embodiments of the present disclosure
  • FIG. 6 illustrates a simplified block diagram of a device that is suitable for implementing some example embodiments of the present disclosure.
  • FIG. 7 illustrates a block diagram of an example of a computer-readable medium in accordance with some example embodiments of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • first and second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments.
  • the term “and/or” includes any and all combinations of one or more of the listed terms.
  • circuitry may refer to one or more or all of the following:
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
  • the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom.
  • the network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a NR NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a WiFi device, a relay, a low power node such as a femto, a pico, and so forth, depending on the applied terminology and technology.
  • BS base station
  • AP access point
  • terminal device refers to any end device that may be capable of wireless communication.
  • a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , a station (STA) or station device, or an Access Terminal (AT) .
  • UE user equipment
  • SS Subscriber Station
  • MS Mobile Station
  • STA station
  • AT Access Terminal
  • the terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (loT) device, a watch or other wearable, a VR (virtual reality) device, an XR (eXtended reality) device, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (for example, remote surgery) , an industrial device and applications (for example, a robot and/or other wireless devices operating in an industrial and/or an automated processing chain
  • a link from the network device 120 to terminal device 110 is referred to as a downlink (DL)
  • a link from terminal device 110 to the network device 120 is referred to as an uplink (UL)
  • the network device 120 is a transmitting (TX) device (or a transmitter)
  • terminal device 110 is a receiving (RX) device (or a receiver)
  • terminal device 110 is a transmitting TX device (or a transmitter)
  • the network device 120 is a RX device (or a receiver) .
  • the communications in the communication system 100 may conform to any suitable standards including, but not limited to, Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , Code Division Multiple Access (CDMA) and Global System for Mobile Communications (GSM) and the like.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • GSM Global System for Mobile Communications
  • the communications may be performed according to any generation communication protocols either currently known or to be developed in the future. Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) , 5.5G, 5G-Advanced networks, or the sixth generation (6G) communication protocols.
  • the communication system 100 may include any suitable number of devices adapted for implementing embodiments of the present disclosure.
  • LCP configuration #1 LCH#1 has priority #1, and LCH#2 has priority #2;
  • LCP configuration #2 LCH#1 has priority #2, and LCH#2 has priority #1;
  • the newly defined “priorityList” field in IE “LogicalChannelConfig” is configured to [1, 2, 1, 0] which comprises 4 priorities
  • the newly defined “priorityList” field in IE “LogicalChannelConfig” is configured to [2, 1, 0, 1] which also comprises 4 priorities.
  • the number of priorities in a list of priorities for a configured LCH is equal to the number of the multiple LCP configurations, in this case, 4.
  • a single priority value can be configured and used, regardless of which LCP configuration is used for the LCHs configured with the priority list.
  • the terminal device 110 may use the single priority value in an LCP procedure independently of the indicated LCP configuration (irrespective of or neglecting the indicated LCP configuration) .
  • a priority level (also referred to as “apriority value” , e.g., priority #0, or priority #15) may be used to indicate that the corresponding LCH shall be restricted from being included in the LCP procedure, in other words, to indicate that the corresponding LCH shall be excluded in the LCP procedure.
  • the specific priority level (for example, #0 or #15 as mentioned above) has different interpretation from the normal priority for the LCH.
  • the specific priority level means that the LCH which is set to that specific priority level is to be excluded in the LCP procedure, and the specific priority level no longer indicates highest/lowest priority in a normal manner.
  • Utilization of the specific priority level in the LCP configuration may trigger the OFF mechanism for MDBV enforcement, more specifically, excluding corresponding LCH (s) in LCP procedure so that, for example, the data rate of the corresponding LCH (s) does not exceed a configured peak value.
  • priority #0 is used as the specific priority level, thus LCH #2 is restricted in LCP config. 3
  • LCH #1 is restricted in LCP config. 4.
  • LCP config. 3 and LCP config. 4 may trigger the OFF mechanism for MDBV enforcement for LCH #2 and LCH #1, respectively.
  • LCH#2 is excluded in LCP procedure
  • LCP config. 4 LCH#1 is excluded in LCP procedure.
  • the network device further transmits (220) scheduling information 202 for an uplink transmission of the terminal device 110.
  • the scheduling information indicates an LCP configuration among the multiple LCP configurations.
  • the terminal device 110 receives (222) the scheduling information 202.
  • a new field may be added to the scheduling DCI (UL grant) , e.g. DCI formats 0_0 and 0_1, to indicate that a certain LCP configuration should be applied for the corresponding UL grant.
  • an existing field for example, a reserved field
  • the number of bits of this new field or the number of bits reused for this purpose of an existing field may be determined based on the number of the multiple LCP configurations, i.e., the value of the parameter “NrOfLCPConfigurations” .
  • the number of bits of this new field may be ceil [log2 (NrOfLCPConfigurations) ] .
  • ceil means a ceiling operation More specifically, considering the example shown in FIG. 3, the mapping between the DCI field and LCP configuration including corresponding LCP priority may be defined based on Table 1.
  • the value of the newly added field in DCI is “01” , it may indicate LCP configuration #2, where priority of LCH #1 is #2 (the second element comprised in the priority list [1, 2, 1, 0] for LCH #1) , while priority of LCH #2 is 1 (the second element comprised in the priority list [2, 1, 0, 1] for LCH #2) .
  • the value of the newly added field in DCI is “10” , it may indicate LCP configuration #3, where priority of LCH #1 is #1 (the third element comprised in the priority list [1, 2, 1, 0] for LCH #1) , while priority of LCH #2 is #0 (the third element comprised in the priority list [2, 1, 0, 1] for LCH #2) .
  • priority of LCH #2 is set to #0 which is the specific priority level used to trigger the OFF mechanism for MDBV enforcement.
  • LCH#2 is excluded in LCP procedure. This may happen when, for example, if LCH #2 has a higher priority and data traffic on LCH#2 is generated at a rate higher than the configured Maximum Date Burst Volume (MDBV) , which, for example, could be configured as the maximum data amount D (bytes) that can be transmitted over a time period of T (milliseconds) . Then the LCH may exceeds the configured MDBV, and the corresponding transport channel may be mainly occupied by data traffic from LCH #2, e.g.
  • MDBV Maximum Date Burst Volume
  • the network device 120 may determine to trigger the OFF mechanism for MDBV enforcement and set priority of LCH #2 to #0, i.e., to exclude LCH#2 in LCP procedure, such that other LCHs may transmit data, which may lead to better overall communication performance between the terminal device 110 and the network device 120 by enabling the network device 120 to effectively enforce the configured MDBV requirements.
  • the value of the newly added field in DCI is “11” , it may indicate LCP configuration #4, where priority of LCH #1 is #0 (the fourth element comprised in the priority list [1, 2, 1, 0] for LCH #1) , while priority of LCH #2 is 1 (the fourth element comprised in the priority list [2, 1, 0, 1] for LCH #2) .
  • priority of LCH #1 is set to #0 which is the specific priority level, the OFF mechanism for MDBV enforcement is triggered and LCH#1 is excluded from LCP procedure for better overall communication performance between the terminal device 110 and the network device 120.
  • the terminal device 110 transmits (230) an uplink transmission 203 based on the indicated LCP configuration.
  • the network device 120 receives (232) the uplink transmission 203 from the terminal device 110.
  • the terminal device 110 may transmit (230) the uplink transmission 203 by applying an LCP procedure where each configured LCH is assigned a priority corresponding to the indicated LCP configuration.
  • n is the possible priority values for dynamic LCP, and in NR, n is fixed to be 16, which means the dynamic LCP can be expressed as LCP (0-15) with 0-15 being the indices.
  • r is the subset size, which in this case is also equal to the LCHs to be configured for dynamic LCP. Then the total number of permutations P can be computed for few example numbers of LCHs.:
  • the LCH priorities relative to one another are the same within the dynamic LCP configuration and the values configured are only relevant to any LCHs which are not part of this dynamic LCP configuration. For example, priorities for LCH1/LCH2 set to ⁇ 1, 2 ⁇ or ⁇ 2, 4 ⁇ is the same unless there is an LCH3 configured with fixed priority of 3 but not included in the dynamic LCP scheme, because the fixed priority of 3 is greater in value than 1 and 2 and less in value than 4, so it will influence the combination of priorities ⁇ 1, 2 ⁇ and ⁇ 2, 4 ⁇ for LCH1/LCH2.
  • priorities ⁇ 2, 5 ⁇ for LCH1/LCH2 may be the same as priorities ⁇ 2, 4 ⁇ and ⁇ 2, 6 ⁇ and so on, because a fixed priority of 3 is greater in value than 2 while less in value than either of 4, 5 or 6.
  • an LCH3 configured with fixed priority of 3 has no impact on the combination of priorities ⁇ 2, 4 ⁇ , ⁇ 2, 5 ⁇ and ⁇ 2, 6 ⁇ for LCH1/LCH2.
  • the combination of priorities ⁇ 1, 2 ⁇ and ⁇ 2, 4 ⁇ for LCH1/LCH2 can no longer be reduced; while the combination of priorities ⁇ 2, 4 ⁇ , ⁇ 2, 5 ⁇ and ⁇ 2, 6 ⁇ for LCH1/LCH2 can still be reduced to ⁇ 2, 4 ⁇ or ⁇ 2, 5 ⁇ or ⁇ 2, 6 ⁇ .
  • the 4 combination of priorities ⁇ 1, 2 ⁇ , ⁇ 2, 4 ⁇ , ⁇ 2, 5 ⁇ and ⁇ 2, 6 ⁇ for LCH1/LCH2 can be reduced to two combination of priorities ⁇ 1, 2 ⁇ and ⁇ 2, 4 ⁇ .
  • the number of combination of priorities decreases from 4 to 2.
  • the maximum number of the multiple LCP configurations is predetermined, which is much less than the maximum number of the possible LCP configurations.
  • FIG. 4 illustrates a flowchart of an example method 400 implemented at a first device (for example, the terminal device 110 as illustrated in FIGS. 1 and 2) in accordance with some other embodiments of the present disclosure.
  • a first device for example, the terminal device 110 as illustrated in FIGS. 1 and 2
  • the method 400 will be described from the perspective of the terminal device 110 with reference to FIGS. 1 and 2.
  • the terminal device 110 receives logical channel (LCH) configuration information (for example, LCH configuration information 201 as illustrated in FIG. 2) indicating a list of priorities per configured LCH.
  • LCH logical channel
  • a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information.
  • the terminal device 110 receives scheduling information (for example, scheduling information 202 as illustrated in FIG. 2) for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations.
  • the terminal device 110 transmits the uplink transmission (for example, uplink transmission 203 as illustrated in FIG. 2) based on the indicated LCP configuration.
  • a priority value of the priority may indicate that an LCH associated with the priority value is excluded from an LCP procedure.
  • the number of priorities in the list of priorities for a configured LCH may be equal to the number of the multiple LCP configurations. In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be predetermined. In some example embodiments, the maximum number of the multiple LCP configurations may be predetermined.
  • the terminal device 110 may further use the single priority value in an LCP procedure independently of the indicated LCP configuration.
  • a bit field in the scheduling information may be used to indicate an LCP configuration among the multiple LCP configurations.
  • the number of bits in the bit field may be determined based on the number of the multiple LCP configurations.
  • the LCH configuration information may be received in a radio resource control (RRC) configuration.
  • RRC radio resource control
  • the network device 120 transmits logical channel (LCH) configuration information (for example, LCH configuration information 201 as illustrated in FIG. 2) indicating a list of priorities per configured LCH.
  • LCH configuration information for example, LCH configuration information 201 as illustrated in FIG. 2
  • a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information.
  • the network device 120 transmits scheduling information (for example, scheduling information 202 as illustrated in FIG. 2) for an uplink transmission.
  • the scheduling information indicates an LCP configuration among the multiple LCP configurations.
  • the network device 120 receives the uplink transmission (for example, uplink transmission 203 as illustrated in FIG. 2) .
  • a priority value of the priority may indicate that an LCH associated with the priority value is excluded from an LCP procedure.
  • the LCH configuration information may comprise a first list of priorities for a first configured LCH and a second list of priorities for a second configured LCH
  • the LCP configuration may comprise a third list comprising a first priority in the first list of priorities and a second priority in the second list of priorities
  • an index of the first priority in the first list of priorities may be same as an index of the second priority in the second list of priorities.
  • a bit field in the scheduling information may be used to indicate an LCP configuration among the multiple LCP configurations.
  • the number of bits in the bit field may be determined based on the number of the multiple LCP configurations.
  • the LCH configuration information may be transmitted in a radio resource control (RRC) configuration.
  • RRC radio resource control
  • an apparatus capable of performing the method 400 may comprise means for performing the respective steps of the method 400.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises: means for receiving logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; means for receiving scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and means for transmitting the uplink transmission based on the indicated LCP configuration.
  • LCH logical channel
  • LCP logical channel prioritization
  • the LCH configuration information may comprise a first list of priorities for a first configured LCH and a second list of priorities for a second configured LCH
  • the LCP configuration may comprise a third list comprising a first priority in the first list of priorities and a second priority in the second list of priorities
  • an index of the first priority in the first list of priorities may be same as an index of the second priority in the second list of priorities.
  • the number of priorities in the list of priorities for a configured LCH may be equal to the number of the multiple LCP configurations. In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be predetermined. In some example embodiments, the maximum number of the multiple LCP configurations may be predetermined.
  • the number of bits in the bit field may be determined based on the number of the multiple LCP configurations.
  • the LCH configuration information may be received in a radio resource control (RRC) configuration.
  • RRC radio resource control
  • the apparatus further comprises means for performing other steps in some embodiments of the method 400.
  • the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
  • a priority value of the priority may indicate that an LCH associated with the priority value is excluded from an LCP procedure.
  • the LCH configuration information may comprise a first list of priorities for a first configured LCH and a second list of priorities for a second configured LCH
  • the LCP configuration may comprise a third list comprising a first priority in the first list of priorities and a second priority in the second list of priorities
  • an index of the first priority in the first list of priorities may be same as an index of the second priority in the second list of priorities.
  • the number of priorities in the list of priorities for a configured LCH may be equal to the number of the multiple LCP configurations. In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be predetermined. In some example embodiments, the maximum number of the multiple LCP configurations may be predetermined. In some example embodiments, based on determining that an LCH has a priority independent of the LCP configuration, the apparatus may further comprise means for configuring the LCH with a single priority value.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 500.
  • the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
  • FIG. 6 illustrates a simplified block diagram of a device 600 that is suitable for implementing some example embodiments of the present disclosure.
  • the device 600 may be provided to implement a communication device, for example, the terminal device 110 and the network device 120 as shown in FIGS. 1 and 2.
  • the device 600 includes one or more processors 610, one or more memories 620 coupled to the processor 610, and one or more communication modules 640 coupled to the processor 610.
  • the communication module 640 is for bidirectional communications.
  • the communication module 640 has at least one antenna to facilitate communication.
  • the communication interface may represent any interface that is necessary for communication with other network elements.
  • the processor 610 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 600 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • the embodiments of the present disclosure may be implemented by means of the program 630 so that the device 600 may perform any process of the disclosure as discussed with reference to FIGS. 2 and 4-5.
  • the embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • the program 630 may be tangibly contained in a computer-readable medium which may be included in the device 600 (such as in the memory 620) or other storage devices that are accessible by the device 600.
  • the device 600 may load the program 630 from the computer-readable medium to the RAM 622 for execution.
  • the computer-readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • FIG. 7 illustrates a block diagram of an example of a computer-readable medium 700 in accordance with some example embodiments of the present disclosure.
  • the computer-readable medium 700 has the program 630 stored thereon. It is noted that although the computer-readable medium 700 is depicted in form of CD or DVD in FIG. 7, the computer-readable medium 700 may be in any other form suitable for carry or hold the program 630.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out any of the method 200, 400 or 500 as described above with reference to FIGS. 2 and 4-5.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • the computer program codes or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above.
  • Examples of the carrier include a signal, computer-readable medium, and the like.
  • the computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium.
  • a computer-readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer-readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • non-transitory is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM) .

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Abstract

Example embodiments of the present disclosure relate to logical channel prioritization (LCP). In an example method, a terminal device receives logical channel (LCH) configuration information indicating a list of priorities per configured LCH. Here, a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information. Then, the terminal device receives scheduling information for an uplink transmission. The scheduling information indicates an LCP configuration among the multiple LCP configurations. With the received configuration information and scheduling information, the terminal device transmits the uplink transmission based on the indicated LCP configuration. In this way, communication performance can be improved. For example, both dynamic LCP and LCH restriction for maximum data burst volume (MDBV) enforcement can be supported, and processing complexity can be greatly decreased.

Description

LOGIC CHANNEL PRIORITIZATION FIELD
Example embodiments of the present disclosure generally relate to the field of communications, and in particular, to a terminal device, a network device, methods, apparatuses, and a computer-readable medium for logical channel prioritization (LCP) .
BACKGROUND
A communication network can be seen as a facility that enables communications between two or more communication devices, or provides communication devices access to a data network. A mobile or wireless communication network is one example of a communication network.
Such communication networks operate in accordance with standards, such as those promulgated by 3GPP (Third Generation Partnership Project) or ETSI (European Telecommunications Standards Institute) . Examples of such standards include the so-called 5G (5th Generation) standard or other standards promulgated by 3GPP.
SUMMARY
In general, example embodiments of the present disclosure provide a solution for logical channel prioritization (LCP) , especially for combined support of dynamic LCP and LCH restriction for maximum data burst volume (MDBV) enforcement.
In a first aspect, there is provided a terminal device. The terminal device comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the terminal device at least to: receive logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; receive scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and transmit the uplink transmission based on the indicated LCP configuration.
In a second aspect, there is provided a network device. The network device comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the network device at least to: transmit logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; transmit scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and receive the uplink transmission.
In a third aspect, there is provided a method. The method comprises: receiving logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; receiving scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and transmitting the uplink transmission based on the indicated LCP configuration.
In a fourth aspect, there is provided a method. The method comprises: transmitting logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; transmitting scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and receiving the uplink transmission.
In a fifth aspect, there is provided an apparatus. The apparatus comprises: means for receiving logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; means for receiving scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and means for transmitting the uplink transmission based on the indicated LCP configuration.
In a sixth aspect, there is provided an apparatus. The apparatus comprises: means for transmitting logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; means for transmitting scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and means for receiving the uplink transmission.
In a seventh aspect, there is provided a non-transitory computer-readable storage medium having instructions stored thereon. The instructions, when executed on at least one processor, cause the at least one processor to perform the method of the third or fourth aspects.
In an eighth aspect, there is provided a computer program comprising instructions, which, when executed by an apparatus, cause the apparatus at least to: receive logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; receive scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and transmit the uplink transmission based on the indicated LCP configuration.
In a ninth aspect, there is provided a computer program comprising instructions, which, when executed by an apparatus, cause the apparatus at least to: transmit logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; transmit scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and receive the uplink transmission.
In a tenth aspect, there is provided a terminal device. The terminal device comprises: first receiving circuitry configured to receive logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; second receiving circuitry configured to receive scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and transmitting circuitry configured to transmit the uplink transmission based on the indicated LCP configuration.
In an eleventh aspect, there is provided a network device. The network device comprises: first transmitting circuitry configured to transmit logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; second transmitting circuitry configured to transmit scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and receiving circuitry configured to receive the uplink transmission.
It is to be understood that the summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description.
BRIEF DESCRIPTION OF THE DRAWINGS
Some example embodiments will now be described with reference to the accompanying drawings, in which:
FIG. 1 illustrates an example network environment in which some example embodiments of the present disclosure may be implemented;
FIG. 2 illustrates a signaling chart illustrating an example communication process in accordance with some example embodiments of the present disclosure;
FIG. 3 illustrates a schematic diagram illustrating the mapping between LCP configurations and LCH priorities in accordance with some embodiments of the present disclosure;
FIG. 4 illustrates a flowchart of an example method implemented at a first device in accordance with some embodiments of the present disclosure;
FIG. 5 illustrates a flowchart of an example method implemented at a second device in accordance with some embodiments of the present disclosure;
FIG. 6 illustrates a simplified block diagram of a device that is suitable for implementing some example embodiments of the present disclosure; and
FIG. 7 illustrates a block diagram of an example of a computer-readable medium in accordance with some example embodiments of the present disclosure.
Throughout the drawings, the same or similar reference numerals represent the same or similar elements.
DETAILED DESCRIPTION
Principles of the present disclosure will now be described with reference to some example embodiments. It is to be understood that these embodiments are described for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. The disclosure described herein can be implemented in various manners other than the ones described below.
In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
References in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It shall be understood that although the terms “first” and “second” etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term “and/or” includes any and all combinations of one or more of the listed terms.
The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” , “comprising” , “has” , “having” , “includes” and/or “including” , when used herein, specify the presence of stated features, elements, and/or components etc., but do not preclude the presence or addition of one or more other features, elements, components and/or combinations thereof. As used herein, “at least one of the following: <a list of two or more elements>” and “at least one of <a list of two or more elements>” and similar wording, where the list of two or more elements are joined by “and” or “or” , mean at least any one of the elements, or at least any two or more of the elements, or at least all the elements.
As used in this application, the term “circuitry” may refer to one or more or all of the following:
(a) hardware-only circuit implementations (such as implementations in only analog and/or digital circuitry) and
(b) combinations of hardware circuits and software, such as (as applicable) :
(i) a combination of analog and/or digital hardware circuit (s) with software/firmware and
(ii) any portions of hardware processor (s) with software (including digital signal processor (s) ) , software, and memory (ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions) and
(c) hardware circuit (s) and or processor (s) , such as a microprocessor (s) or a portion of a microprocessor (s) , that requires software (for example, firmware) for operation, but the software may not be present when it is not needed for operation.
This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware. The term circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
As used herein, the term “communication network” refers to a network following any suitable communication standards, such as Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) , Wireless Fidelity (WiFi) and so on. Furthermore, the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the fourth generation (4G) , 4.5G, the future fifth generation (5G) , IEEE 802.11 communication protocols, and/or any other protocols either currently known or to be developed in the future. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.
As used herein, the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom. The network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a NR NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a WiFi device, a relay, a low power node such as a femto, a pico, and so forth, depending on the applied terminology and technology. In the following description, the terms “network device” , “AP device” , “AP” and “access point” may be used interchangeably.
The term “terminal device” refers to any end device that may be capable of wireless communication. By way of example rather than limitation, a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , a station (STA) or station device, or an Access Terminal (AT) . The terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (loT) device, a watch or other wearable, a VR (virtual reality) device, an XR (eXtended reality) device, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (for example, remote surgery) , an industrial device and applications (for example, a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and/or industrial wireless networks, and the like. In the following description, the terms “station” , “station device” , “STA” , “terminal device” , “communication device” , “terminal” , “user equipment” and “UE” may be used interchangeably.
Extended reality (XR) applications are used more and more by many people over the world in their daily lives. XR applications are characterized by high data rate requirements and relatively small packet delay budget (PDB) . Therefore, low-latency communication is critical for XR applications. XR traffic may consist of multiple flows with different quality of service (QoS) requirements in uplink (UL) transmission. Intra-UE prioritization between different flows is handled by the logical channel prioritization (LCP) procedure specified in medium access control (MAC) specifications. The LCP procedure specified in 3GPP is only designed to meet prioritized bit rate requirements by avoiding starvation of low priority logical channels due to, for example, a large amount of data belonging to a higher priority logical channel arriving in the UE buffer. However, a single token bucket in the UE cannot be used to both satisfy prioritized bit rate and enforce MDBV, i.e. ensuring that the data rate does not exceed a configured peak value. In view of this, the LCP procedure may need to be enhanced to enable MDBV enforcement in UL direction. Moreover, for example, the LCP procedure may be enhanced to also consider uplink delay.
To this end, a new scheme for combined support of dynamic LCP and LCH restriction for MDBV enforcement is provided, which can simultaneously enable MDBV enforcement in UL (by explicitly restricting one or more LCHs from being scheduled) and intra-UE UL delay-based scheduling.
FIG. 1 illustrates an example communication system 100 in which some embodiments of the present disclosure can be implemented. The communication system 100, which is a part of a communication network, includes a terminal device (UE) 110 and a network device 120. The terminal device 110 may be, for example, an Internet of Things (IoT) device. The network device 120 may be for example a random access network (RAN) device (like an NG-RAN device, also called as gNB) , or a communication module thereof. The network device 120 is associated with a cell 121, and provides communication service to terminal devices (like UE 110) in the cell 121. As illustrated in FIG. 1, the terminal device 110 is in connection with the network device 120.
In the system 100, a link from the network device 120 to terminal device 110 is referred to as a downlink (DL) , while a link from terminal device 110 to the network device 120 is referred to as an uplink (UL) . In downlink, the network device 120 is a transmitting (TX) device (or a transmitter) and terminal device 110 is a receiving (RX) device (or a receiver) . In uplink, terminal device 110 is a transmitting TX device (or a transmitter) and the network device 120 is a RX device (or a receiver) .
The communications in the communication system 100 may conform to any suitable standards including, but not limited to, Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , Code Division Multiple Access (CDMA) and Global System for Mobile Communications (GSM) and the like. Furthermore, the communications may be performed according to any generation communication protocols either currently known or to be developed in the future. Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) , 5.5G, 5G-Advanced networks, or the sixth generation (6G) communication protocols.
It is to be understood that the number of devices (including terminal device 110 and the network device 120) and their connection relationships and types shown in FIG. 1 are only for illustrative purposes without suggesting any limitation. The communication system 100 may include any suitable number of devices adapted for implementing embodiments of the present disclosure.
FIG. 2 illustrates a signaling chart illustrating an example communication process 200 in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the communication process 200 will be described with reference to FIG. 1. The communication process 200 may involve a terminal device (for example, the terminal device 110 as illustrated in FIG. 1) and a network device (for example, the network device 120 as illustrated in FIG. 1) . In the following, the communication process 200 will be described with reference to the terminal device 110 and network device 120 as illustrated in FIG. 1.
As illustrated in FIG. 2, the network device 120 transmits (210) , to the terminal device 110, LCH configuration information 201 indicating a list of priorities per configured LCH. Here, a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information. On the other side of communication, the terminal device 110 receives (212) the LCH configuration information 201 from the network device 120. Under some circumstances, herein “priority” may also be referred to as “LCH priority” or “priority value” or “priority level” .
For example, FIG. 3 illustrates a schematic diagram 300 illustrating the mapping between LCP configurations and LCH priorities in accordance with some embodiments of the present disclosure. In the example as illustrated in FIG. 3, a UE (for example, the terminal device 110 as illustrated in FIGS. 1 and 2) is configured with multiple LCP configurations. An LCP configuration consists of a list or group of logical channel priorities, where each logical channel priority in the LCP configuration is associated with one of the configured logical channels. In this way, each LCH may have a different logical channel priority (either in absolute value, or in a relative value which is relative to other LCHs, or in both absolute and relative value) depending on the LCP configuration. For example, for two logical channels LCH#1 and LCH#2, the LCP configurations may be as follows:
LCP configuration #1: LCH#1 has priority #1, and LCH#2 has priority #2;
LCP configuration #2: LCH#1 has priority #2, and LCH#2 has priority #1;
LCP configuration #3: LCH#1 has priority #1, and LCH#2 has priority #0;
LCP configuration #4: LCH#1 has priority #0, and LCH#2 has priority #1.
More specifically, the terminal device 110 may be provided with an RRC configuration including multiple LCP configurations. The configuration of multiple LCP configurations can be implemented in RRC specifications by defining the LCH priority in information element (IE) “LogicalChannelConfig” (which is defined for logical channel configuration) as a list of priorities, where each priority corresponds to a given LCP configuration. For example, a logic channel configuration for a logic channel may be defined as:
Here, the parameter “NrOfLCPConfigurations” denotes the number of LCP configurations. In the example shown in FIG. 3, there are four LCP configurations (i.e., LCP config. 1, LCP config. 2, LCP config. 3 and LCP config. 4) , in other words, the number of LCP configurations is 4; put it another way, the value of parameter “NrOfLCPConfigurations” is 4. Of course this is only an exemplary non-limiting example, and actually the value of parameter “NrOfLCPConfigurations” may be any number between 1 and a maximum number of LCP configurations (fixed/pre-defined/pre-determined in specifications, for example, 4, 8 or 16) . More specifically, for the example as illustrated in FIG. 3, for logical channel #1, the newly defined “priorityList” field in IE “LogicalChannelConfig” is configured to [1, 2, 1, 0] which comprises 4 priorities, and for logical channel #2, the newly defined “priorityList” field in IE “LogicalChannelConfig” is configured to [2, 1, 0, 1] which also comprises 4 priorities. It can be seen that, the number of priorities in a list of priorities for a configured LCH is equal to the number of the multiple LCP configurations, in this case, 4. For LCHs that are not configured with the priority list, a single priority value can be configured and used, regardless of which LCP configuration is used for the LCHs configured with the priority list. In other words, if the list of priorities for a configured LCH consists of a single priority value, the terminal device 110 may use the single priority value in an LCP procedure independently of the indicated LCP configuration (irrespective of or neglecting the indicated LCP configuration) .
To effectively enable the ON/OFF mechanism for MDBV enforcement, a priority level (also referred to as “apriority value” , e.g., priority #0, or priority #15) may be used to indicate that the corresponding LCH shall be restricted from being included in the LCP procedure, in other words, to indicate that the corresponding LCH shall be excluded in the LCP procedure. Note that when the feature is configured for a LCH, the specific priority level (for example, #0 or #15 as mentioned above) has different interpretation from the normal priority for the LCH. Put it another way, the specific priority level means that the LCH which is set to that specific priority level is to be excluded in the LCP procedure, and the specific priority level no longer indicates highest/lowest priority in a normal manner. Utilization of the specific priority level in the LCP configuration may trigger the OFF mechanism for MDBV enforcement, more specifically, excluding corresponding LCH (s) in LCP procedure so that, for example, the data rate of the corresponding LCH (s) does not exceed a configured peak value. In the example as shown in FIG. 3, priority #0 is used as the specific priority level, thus LCH #2 is restricted in LCP config. 3, and LCH #1 is restricted in LCP config. 4. This means that, LCP config. 3 and LCP config. 4 may trigger the OFF mechanism for MDBV enforcement for LCH #2 and LCH #1, respectively. Specifically, under LCP config. 3, LCH#2 is excluded in LCP procedure, and under LCP config. 4, LCH#1 is excluded in LCP procedure.
Reference is made back to FIG. 2. The network device further transmits (220) scheduling information 202 for an uplink transmission of the terminal device 110. The scheduling information indicates an LCP configuration among the multiple LCP configurations. On the other side of the communication, the terminal device 110 receives (222) the scheduling information 202.
For example, the network device 120 may indicate (for example, in the scheduling DCI, i.e., in the UL grant) to the terminal device 110, which LCP configuration is to be applied to a (specific) UL transmission.
[Corrected under Rule 26, 13.05.2024]
In order to do this, a new field may be added to the scheduling DCI (UL grant) , e.g. DCI formats 0_0 and 0_1, to indicate that a certain LCP configuration should be applied for the corresponding UL grant. Alternatively, an existing field (for example, a reserved field) may be reused for this purpose. The number of bits of this new field or the number of bits reused for this purpose of an existing field may be determined based on the number of the multiple LCP configurations, i.e., the value of the parameter “NrOfLCPConfigurations” . For example, the number of bits of this new field (or reused for this purpose of an existing field) may be ceil [log2 (NrOfLCPConfigurations) ] . Here, “ceil” means a ceiling operation More specifically, considering the example shown in FIG. 3, the mapping between the DCI field and LCP configuration including corresponding LCP priority may be defined based on Table 1.
Table 1 Example mapping between DCI field and LCP configuration
It can be seen in Table 1 that, for the example shown in FIG. 3, if the value of the new field added to DCI to indicate an LCP configuration is “00” , it may indicate LCP configuration #1, where priority of LCH #1 is #1 (the first element comprised in the priority list [1, 2, 1, 0] for LCH #1) , while priority of LCH #2 is 2 (the first element comprised in the priority list [2, 1, 0, 1] for LCH #2) . Similarly, if the value of the newly added field in DCI is “01” , it may indicate LCP configuration #2, where priority of LCH #1 is #2 (the second element comprised in the priority list [1, 2, 1, 0] for LCH #1) , while priority of LCH #2 is 1 (the second element comprised in the priority list [2, 1, 0, 1] for LCH #2) . If the value of the newly added field in DCI is “10” , it may indicate LCP configuration #3, where priority of LCH #1 is #1 (the third element comprised in the priority list [1, 2, 1, 0] for LCH #1) , while priority of LCH #2 is #0 (the third element comprised in the priority list [2, 1, 0, 1] for LCH #2) . In this case, priority of LCH #2 is set to #0 which is the specific priority level used to trigger the OFF mechanism for MDBV enforcement.
Meanwhile, since in the example shown in FIG. 3, priority of LCH #2 is set to #0 and priority #0 is used as the specific priority level which implies that the LCH which is set to that specific priority level is to be excluded in the LCP procedure, LCH#2 is excluded in LCP procedure. This may happen when, for example, if LCH #2 has a higher priority and data traffic on LCH#2 is generated at a rate higher than the configured Maximum Date Burst Volume (MDBV) , which, for example, could be configured as the maximum data amount D (bytes) that can be transmitted over a time period of T (milliseconds) . Then the LCH may exceeds the configured MDBV, and the corresponding transport channel may be mainly occupied by data traffic from LCH #2, e.g. preventing the other LCHs from transmitting any data at all. Therefore, if the network device 120 detects that a LCH has transmitted more than D bytes during the last T milliseconds , the network device 120 may determine to trigger the OFF mechanism for MDBV enforcement and set priority of LCH #2 to #0, i.e., to exclude LCH#2 in LCP procedure, such that other LCHs may transmit data, which may lead to better overall communication performance between the terminal device 110 and the network device 120 by enabling the network device 120 to effectively enforce the configured MDBV requirements.
If the value of the newly added field in DCI is “11” , it may indicate LCP configuration #4, where priority of LCH #1 is #0 (the fourth element comprised in the priority list [1, 2, 1, 0] for LCH #1) , while priority of LCH #2 is 1 (the fourth element comprised in the priority list [2, 1, 0, 1] for LCH #2) . In this case, since priority of LCH #1 is set to #0 which is the specific priority level, the OFF mechanism for MDBV enforcement is triggered and LCH#1 is excluded from LCP procedure for better overall communication performance between the terminal device 110 and the network device 120. This case is similar to the case where the newly added field in DCI is “10” , with the difference being that when the newly added field in DCI is “10” , priority of LCH #2 is set to #0 and thus LCH #2 is excluded from LCP procedure, while when the newly added field in DCI is “11” , priority of LCH #1 is set to #0 and thus LCH #1 is excluded from LCP procedure.
Reference is now made back to FIG. 2. With the received LCH configuration information 201 and scheduling information 202, the terminal device 110 transmits (230) an uplink transmission 203 based on the indicated LCP configuration. On the other side of communication, the network device 120 receives (232) the uplink transmission 203 from the terminal device 110.
For example, in order to transmit (230) the uplink transmission 203 based on the indicated LCP configuration, the terminal device 110 may transmit (230) the uplink transmission 203 by applying an LCP procedure where each configured LCH is assigned a priority corresponding to the indicated LCP configuration.
Complexity analysis of the solution is also conducted. Assuming that all LCHs are within the dynamic LCP, then the proposed configuration options can be described as:
where n is the possible priority values for dynamic LCP, and in NR, n is fixed to be 16, which means the dynamic LCP can be expressed as LCP (0-15) with 0-15 being the indices. And r is the subset size, which in this case is also equal to the LCHs to be configured for dynamic LCP. Then the total number of permutations P can be computed for few example numbers of LCHs.:
For r = 2 (two LCHs are configured for dynamic LCP) , P = 240;
For r = 3 (three LCHs are configured for dynamic LCP) , P = 3360;
For r = 4 (four LCHs are configured for dynamic LCP) , P = 43680.
These numbers may be too big for all options to be fully configured. In most of those cases, the LCH priorities relative to one another are the same within the dynamic LCP configuration and the values configured are only relevant to any LCHs which are not part of this dynamic LCP configuration. For example, priorities for LCH1/LCH2 set to {1, 2} or {2, 4} is the same unless there is an LCH3 configured with fixed priority of 3 but not included in the dynamic LCP scheme, because the fixed priority of 3 is greater in value than 1 and 2 and less in value than 4, so it will influence the combination of priorities {1, 2} and {2, 4} for LCH1/LCH2. And, if there is an LCH3 configured with fixed priority of 3, of course priorities {2, 5} for LCH1/LCH2 may be the same as priorities {2, 4} and {2, 6} and so on, because a fixed priority of 3 is greater in value than 2 while less in value than either of 4, 5 or 6. Thus, an LCH3 configured with fixed priority of 3 has no impact on the combination of priorities {2, 4} , {2, 5} and {2, 6} for LCH1/LCH2.
From this viewpoint, permutations can be reduced. For example, if there is no LCH3 configured with fixed priority of 3, the combination of priorities {1, 2} and {2, 4} for LCH1/LCH2 can be reduced to either {1, 2} or {2, 4} , and the combination of priorities {2, 4} , {2, 5} and {2, 6} for LCH1/LCH2 can be reduced to {2, 4} or {2, 5} or {2, 6} . This means, in this case, the 4 combination of priorities {1, 2} , {2, 4} , {2, 5} and {2, 6} for LCH1/LCH2 can be reduced to a single combination of priorities {2, 4} . The number of combination of priorities decreases from 4 to 1.
If there is an LCH3 configured with fixed priority of 3, the combination of priorities {1, 2} and {2, 4} for LCH1/LCH2 can no longer be reduced; while the combination of priorities {2, 4} , {2, 5} and {2, 6} for LCH1/LCH2 can still be reduced to {2, 4} or {2, 5} or {2, 6} . This means, in this case, the 4 combination of priorities {1, 2} , {2, 4} , {2, 5} and {2, 6} for LCH1/LCH2 can be reduced to two combination of priorities {1, 2} and {2, 4} . The number of combination of priorities decreases from 4 to 2.
As can be seen from the above analysis, in doing so, the number of permutations can be decreased. More specifically, assuming all LCHs are within the dynamic LCP, a much more reasonable number of permutations can be obtained for analysis:For r = 2, P = 2;For r = 3, P = 6;For r = 4, P = 24.
Thus it can be seen that, according to some embodiments of the present disclosure, the maximum number of the multiple LCP configurations is predetermined, which is much less than the maximum number of the possible LCP configurations.
If one or more LCHs are configured to a special priority indicating they are not considered for the LCP procedure, the following formulation is obtained:
where x is the number of the one or more LCHs which are configured to a special priority indicating they are not considered for the LCP procedure. This calculates as follows:For r = 2, Px=1 = 4;For r = 3, Px=1 = 12, Px=2=9;For r = 4, Px=1 = 48, Px=2=36, Px=3=28.
These number of options can be reasonably pre-configured and in most cases only one subset among the multiple options will be used. In this way, communication performance can be improved. For example, both dynamic LCP and LCH restriction for MDBV enforcement can be supported, and processing complexity can be greatly decreased.
FIG. 4 illustrates a flowchart of an example method 400 implemented at a first device (for example, the terminal device 110 as illustrated in FIGS. 1 and 2) in accordance with some other embodiments of the present disclosure. For the purpose of discussion, the method 400 will be described from the perspective of the terminal device 110 with reference to FIGS. 1 and 2.
As illustrated in FIG. 4, at block 410, the terminal device 110 receives logical channel (LCH) configuration information (for example, LCH configuration information 201 as illustrated in FIG. 2) indicating a list of priorities per configured LCH. Here, a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information. At block 420, the terminal device 110 receives scheduling information (for example, scheduling information 202 as illustrated in FIG. 2) for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations. At block 430, the terminal device 110 transmits the uplink transmission (for example, uplink transmission 203 as illustrated in FIG. 2) based on the indicated LCP configuration.
In some example embodiments, in order to transmit the uplink transmission based on the indicated LCP configuration, the terminal device 110 may transmit the uplink transmission by applying an LCP procedure where each configured LCH is assigned a priority corresponding to the indicated LCP configuration.
In some example embodiments, a priority value of the priority may indicate that an LCH associated with the priority value is excluded from an LCP procedure.
In some example embodiments, the LCH configuration information may comprise a first list of priorities for a first configured LCH and a second list of priorities for a second configured LCH, the LCP configuration may comprise a third list comprising a first priority in the first list of priorities and a second priority in the second list of priorities, and an index of the first priority in the first list of priorities may be same as an index of the second priority in the second list of priorities.
In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be equal to the number of the multiple LCP configurations. In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be predetermined. In some example embodiments, the maximum number of the multiple LCP configurations may be predetermined.
In some example embodiments, based on determining that the list of priorities for a configured LCH consists of a single priority value, the terminal device 110 may further use the single priority value in an LCP procedure independently of the indicated LCP configuration.
In some example embodiments, a bit field in the scheduling information may be used to indicate an LCP configuration among the multiple LCP configurations. In some example embodiments, the number of bits in the bit field may be determined based on the number of the multiple LCP configurations. In some example embodiments, the LCH configuration information may be received in a radio resource control (RRC) configuration.
FIG. 5 illustrates a flowchart of an example method 500 implemented at a network device (for example, the network device 120 as illustrated in FIGS. 1 and 2) in accordance with some other embodiments of the present disclosure. For the purpose of discussion, the method 500 will be described from the perspective of the network device 120 with reference to FIGS. 1 and 2.
As illustrated in FIG. 5, at block 510, the network device 120 transmits logical channel (LCH) configuration information (for example, LCH configuration information 201 as illustrated in FIG. 2) indicating a list of priorities per configured LCH. Here, a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information. At block 520, the network device 120 transmits scheduling information (for example, scheduling information 202 as illustrated in FIG. 2) for an uplink transmission. Here, the scheduling information indicates an LCP configuration among the multiple LCP configurations. At block 530, the network device 120 receives the uplink transmission (for example, uplink transmission 203 as illustrated in FIG. 2) .
In some example embodiments, a priority value of the priority may indicate that an LCH associated with the priority value is excluded from an LCP procedure. In some example embodiments, the LCH configuration information may comprise a first list of priorities for a first configured LCH and a second list of priorities for a second configured LCH, the LCP configuration may comprise a third list comprising a first priority in the first list of priorities and a second priority in the second list of priorities, and an index of the first priority in the first list of priorities may be same as an index of the second priority in the second list of priorities.
In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be equal to the number of the multiple LCP configurations. In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be predetermined. In some example embodiments, the maximum number of the multiple LCP configurations may be predetermined. In some example embodiments, based on determining that an LCH has a priority independent of the LCP configuration, the network device 120 may further configure the LCH with a single priority value.
In some example embodiments, a bit field in the scheduling information may be used to indicate an LCP configuration among the multiple LCP configurations. In some example embodiments, the number of bits in the bit field may be determined based on the number of the multiple LCP configurations. In some example embodiments, the LCH configuration information may be transmitted in a radio resource control (RRC) configuration.
In some embodiments, an apparatus capable of performing the method 400 may comprise means for performing the respective steps of the method 400. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
In some example embodiments, the apparatus comprises: means for receiving logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; means for receiving scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and means for transmitting the uplink transmission based on the indicated LCP configuration.
In some example embodiments, the means for transmitting the uplink transmission based on the indicated LCP configuration may comprise means for transmitting the uplink transmission by applying an LCP procedure where each configured LCH is assigned a priority corresponding to the indicated LCP configuration. In some example embodiments, a priority value of the priority may indicate that an LCH associated with the priority value is excluded from an LCP procedure.
In some example embodiments, the LCH configuration information may comprise a first list of priorities for a first configured LCH and a second list of priorities for a second configured LCH, the LCP configuration may comprise a third list comprising a first priority in the first list of priorities and a second priority in the second list of priorities, and an index of the first priority in the first list of priorities may be same as an index of the second priority in the second list of priorities.
In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be equal to the number of the multiple LCP configurations. In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be predetermined. In some example embodiments, the maximum number of the multiple LCP configurations may be predetermined.
In some example embodiments, based on determining that the list of priorities for a configured LCH consists of a single priority value, the apparatus may further comprise means for using the single priority value in an LCP procedure independently of the indicated LCP configuration. In some example embodiments, a bit field in the scheduling information may be used to indicate an LCP configuration among the multiple LCP configurations.
In some example embodiments, the number of bits in the bit field may be determined based on the number of the multiple LCP configurations. In some example embodiments, the LCH configuration information may be received in a radio resource control (RRC) configuration.
In some embodiments, the apparatus further comprises means for performing other steps in some embodiments of the method 400. In some embodiments, the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
In some embodiments, an apparatus capable of performing the method 500 may comprise means for performing the respective steps in some embodiments of the method 500. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
In some example embodiments, the apparatus comprises: means for transmitting logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information; means for transmitting scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and means for receiving the uplink transmission.
In some example embodiments, a priority value of the priority may indicate that an LCH associated with the priority value is excluded from an LCP procedure. In some example embodiments, the LCH configuration information may comprise a first list of priorities for a first configured LCH and a second list of priorities for a second configured LCH, the LCP configuration may comprise a third list comprising a first priority in the first list of priorities and a second priority in the second list of priorities, and an index of the first priority in the first list of priorities may be same as an index of the second priority in the second list of priorities.
In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be equal to the number of the multiple LCP configurations. In some example embodiments, the number of priorities in the list of priorities for a configured LCH may be predetermined. In some example embodiments, the maximum number of the multiple LCP configurations may be predetermined. In some example embodiments, based on determining that an LCH has a priority independent of the LCP configuration, the apparatus may further comprise means for configuring the LCH with a single priority value.
In some example embodiments, a bit field in the scheduling information may be used to indicate an LCP configuration among the multiple LCP configurations. In some example embodiments, the number of bits in the bit field may be determined based on the number of the multiple LCP configurations. In some example embodiments, the LCH configuration information may be transmitted in a radio resource control (RRC) configuration.
In some embodiments, the apparatus further comprises means for performing other steps in some embodiments of the method 500. In some embodiments, the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
FIG. 6 illustrates a simplified block diagram of a device 600 that is suitable for implementing some example embodiments of the present disclosure. The device 600 may be provided to implement a communication device, for example, the terminal device 110 and the network device 120 as shown in FIGS. 1 and 2. As shown, the device 600 includes one or more processors 610, one or more memories 620 coupled to the processor 610, and one or more communication modules 640 coupled to the processor 610.
The communication module 640 is for bidirectional communications. The communication module 640 has at least one antenna to facilitate communication. The communication interface may represent any interface that is necessary for communication with other network elements.
The processor 610 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 600 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
The memory 620 may include one or more non-volatile memories and one or more volatile memories. Examples of the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 624, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , and other magnetic storage and/or optical storage. Examples of the volatile memories include, but are not limited to, a random access memory (RAM) 622 and other volatile memories that will not last in the power-down duration.
A computer program 630 includes computer executable instructions that are executed by the associated processor 610. The program 630 may be stored in the ROM 624. The processor 610 may perform any suitable actions and processing by loading the program 630 into the RAM 622.
The embodiments of the present disclosure may be implemented by means of the program 630 so that the device 600 may perform any process of the disclosure as discussed with reference to FIGS. 2 and 4-5. The embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
In some example embodiments, the program 630 may be tangibly contained in a computer-readable medium which may be included in the device 600 (such as in the memory 620) or other storage devices that are accessible by the device 600. The device 600 may load the program 630 from the computer-readable medium to the RAM 622 for execution. The computer-readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
FIG. 7 illustrates a block diagram of an example of a computer-readable medium 700 in accordance with some example embodiments of the present disclosure. The computer-readable medium 700 has the program 630 stored thereon. It is noted that although the computer-readable medium 700 is depicted in form of CD or DVD in FIG. 7, the computer-readable medium 700 may be in any other form suitable for carry or hold the program 630.
Generally, various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out any of the method 200, 400 or 500 as described above with reference to FIGS. 2 and 4-5. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types. The functionality of the program modules may be combined or split between program modules as desired in various embodiments. Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented. The program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present disclosure, the computer program codes or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above. Examples of the carrier include a signal, computer-readable medium, and the like.
The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer-readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. The term “non-transitory, ” as used herein, is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM) .
Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are contained in the above discussions, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to particular embodiments. Certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment may also be implemented in multiple embodiments separately or in any suitable sub-combination.
Although the present disclosure has been described in languages specific to structural features and/or methodological acts, it is to be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims (26)

  1. A terminal device comprising:
    at least one processor; and
    at least one memory storing instructions that, when executed by the at least one processor, cause the terminal device at least to:
    receive logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information;
    receive scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and
    transmit the uplink transmission based on the indicated LCP configuration.
  2. The terminal device of claim 1, wherein the terminal device is caused to transmit the uplink transmission based on the indicated LCP configuration by:
    transmitting the uplink transmission by applying an LCP procedure where each configured LCH is assigned a priority corresponding to the indicated LCP configuration.
  3. The terminal device of claim 1 or 2, wherein a priority value of the priority indicates that an LCH associated with the priority value is excluded from an LCP procedure.
  4. The terminal device of any of claim 1-3, wherein the LCH configuration information comprises a first list of priorities for a first configured LCH and a second list of priorities for a second configured LCH, the LCP configuration comprises a third list comprising a first priority in the first list of priorities and a second priority in the second list of priorities, and an index of the first priority in the first list of priorities is same as an index of the second priority in the second list of priorities.
  5. The terminal device of any of claims 1-4, wherein the number of priorities in the list of priorities for a configured LCH is equal to the number of the multiple LCP configurations.
  6. The terminal device of any of claims 1-5, wherein the number of priorities in the list of priorities for a configured LCH is predetermined.
  7. The terminal device of any of claims 1-6, wherein the maximum number of the multiple LCP configurations is predetermined.
  8. The terminal device of any of claims 1-7, wherein the terminal device is further caused to:
    based on determining that the list of priorities for a configured LCH consists of a single priority value, use the single priority value in an LCP procedure independently of the indicated LCP configuration.
  9. The terminal device of any of claims 1-8, wherein a bit field in the scheduling information is used to indicate an LCP configuration among the multiple LCP configurations.
  10. The terminal device of claim 9, wherein the number of bits in the bit field is determined based on the number of the multiple LCP configurations.
  11. The terminal device of any of claims 1-10, wherein the LCH configuration information is received in a radio resource control (RRC) configuration.
  12. A network device comprising:
    at least one processor; and
    at least one memory storing instructions that, when executed by the at least one processor, cause the network device at least to:
    transmit logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information;
    transmit scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and
    receive the uplink transmission.
  13. The network device of claim 12, wherein a priority value of the priority indicates that an LCH associated with the priority value is excluded from an LCP procedure.
  14. The network device of claim 12 or 13, wherein the LCH configuration information comprises a first list of priorities for a first configured LCH and a second list of priorities for a second configured LCH, the LCP configuration comprises a third list comprising a first priority in the first list of priorities and a second priority in the second list of priorities, and an index of the first priority in the first list of priorities is same as an index of the second priority in the second list of priorities.
  15. The network device of any of claims 12-14, wherein the number of priorities in the list of priorities for a configured LCH is equal to the number of the multiple LCP configurations.
  16. The network device of any of claims 12-15, wherein the number of priorities in the list of priorities for a configured LCH is predetermined.
  17. The network device of any of claims 12-16, wherein the maximum number of the multiple LCP configurations is predetermined.
  18. The network device of any of claims 12-17, wherein the network device is further caused to:
    based on determining that an LCH has a priority independent of the LCP configuration, configure the LCH with a single priority value.
  19. The network device of any of claims 12-18, wherein a bit field in the scheduling information is used to indicate an LCP configuration among the multiple LCP configurations.
  20. The network device of claim 19, wherein the number of bits in the bit field is determined based on the number of the multiple LCP configurations.
  21. The network device of any of claims 12-20, wherein the LCH configuration information is transmitted in a radio resource control (RRC) configuration.
  22. A method comprising:
    receiving logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information;
    receiving scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and
    transmitting the uplink transmission based on the indicated LCP configuration.
  23. A method comprising:
    transmitting logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information;
    transmitting scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and
    receiving the uplink transmission.
  24. An apparatus comprising:
    means for receiving logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information;
    means for receiving scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and
    means for transmitting the uplink transmission based on the indicated LCP configuration.
  25. An apparatus comprising:
    means for transmitting logical channel (LCH) configuration information indicating a list of priorities per configured LCH, wherein a priority in the list of priorities is associated with a corresponding logical channel prioritization (LCP) configuration among multiple LCP configurations associated with the LCH configuration information;
    means for transmitting scheduling information for an uplink transmission, wherein the scheduling information indicates an LCP configuration among the multiple LCP configurations; and
    means for receiving the uplink transmission.
  26. A non-transitory computer-readable medium comprising program instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method of claim 22 or 23.
PCT/CN2024/086267 2024-04-05 2024-04-05 Logic channel prioritization Pending WO2025208644A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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WO2025208644A1 true WO2025208644A1 (en) 2025-10-09

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WO2021216230A1 (en) * 2020-04-20 2021-10-28 Qualcomm Incorporated Dynamic selection of lcp parameters
CN113812199A (en) * 2019-03-28 2021-12-17 上海诺基亚贝尔股份有限公司 logical channel prioritization
US20230024069A1 (en) * 2020-01-07 2023-01-26 Telefonaktiebolaget Lm Ericsson (Publ) Logical Channel Prioritization and Corresponding Uplink Grant

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CN113812199A (en) * 2019-03-28 2021-12-17 上海诺基亚贝尔股份有限公司 logical channel prioritization
US20230024069A1 (en) * 2020-01-07 2023-01-26 Telefonaktiebolaget Lm Ericsson (Publ) Logical Channel Prioritization and Corresponding Uplink Grant
WO2021216230A1 (en) * 2020-04-20 2021-10-28 Qualcomm Incorporated Dynamic selection of lcp parameters

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