[go: up one dir, main page]

EP4516050A1 - Signalisation d'accès de liaison montante dynamique par le biais de canaux de diffusion de couche 1 - Google Patents

Signalisation d'accès de liaison montante dynamique par le biais de canaux de diffusion de couche 1

Info

Publication number
EP4516050A1
EP4516050A1 EP23721037.2A EP23721037A EP4516050A1 EP 4516050 A1 EP4516050 A1 EP 4516050A1 EP 23721037 A EP23721037 A EP 23721037A EP 4516050 A1 EP4516050 A1 EP 4516050A1
Authority
EP
European Patent Office
Prior art keywords
random access
wireless device
resources
network node
indication
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
EP23721037.2A
Other languages
German (de)
English (en)
Inventor
Ajit Nimbalker
Ravikiran Nory
Sina MALEKI
Ali Nader
Ilmiawan SHUBHI
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of EP4516050A1 publication Critical patent/EP4516050A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Definitions

  • the Third Generation Partnership Project (3 GPP) has developed and is developing standards for Fourth Generation (4G) (also referred to as Long Term Evolution (LTE)) and Fifth Generation (5G) (also referred to as New Radio (NR)) wireless communication systems.
  • 4G Fourth Generation
  • 5G Fifth Generation
  • NR New Radio
  • Such systems provide, among other features, broadband communication between network nodes, such as base stations, and mobile wireless devices (WD), as well as communication between network nodes and between wireless devices.
  • 6G wireless communication systems are also under development.
  • FIG. 1 is a diagram of example signaling in NR where a cell supporting initial access transmits a synchronization signal (SS) block (SSB) periodically, and an SS block consists of primary and secondary synchronization signals and a primary broadcast channel (PBCH).
  • SS synchronization signal
  • PBCH primary broadcast channel
  • the SIB1 is transmitted on the downlink scheduling (DL-SCH) resources with a periodicity (e.g., of 160 ms) and variable transmission repetition periodicity within that periodicity.
  • the default transmission repetition periodicity of SIB1 can be a first value (e.g., 20ms) but the actual transmission repetition periodicity is up to network implementation.
  • the SIB1 repetition transmission period is 20 ms.
  • SIB1 transmission repetition period is the same as the SSB period (3GPP Technical Standard (TS) 38.213 (e.g., version 15.14.0 (Rel 15), version 16.9.0 (Rel 16)), clause 13).
  • SIB1 includes information regarding the availability and scheduling (e.g., mapping of SIBs to system information (SI) message, periodicity, Si-window size) of other SIBs with an indication whether one or more SIBs are only provided on-demand and, in that case, the configuration needed by the wireless device to perform the SI request.
  • SIB1 is cell-specific SIB.
  • a wireless device configured to receive a resource indication of at least first and second sets of uplink random access resources.
  • Wireless device is configured to receive a dynamic indication associated with a random access procedure.
  • Wireless device is configured to initiate, based on the dynamic indication, the random access procedure using one of the first set of uplink random access resources and the second set of uplink random access resources.
  • the dynamic indication is included in legacy reserved bits of the PBCH.
  • the dynamic indication is received in downlink control information, DCI, carried in a physical downlink control channel, PDCCH.
  • SI-RNTI system information radio network temporary identifier
  • paging RNTI paging RNTI
  • P-RNTI paging early indication RNTI
  • PEI-RNTI paging early indication RNTI
  • the dynamic indication is included in legacy reserved bits in the PDCCH.
  • the dynamic indication is included in a physical downlink shared channel, PDSCH, message.
  • a network node configured to configure the wireless device with a resource indication corresponding to first and second sets of uplink random access resources.
  • Network node is configured to cause transmission of a dynamic indication that is configured to cause the wireless device to initiate a random access procedure using one of the first set of uplink random access resources and the second set of uplink random access resources indicated in the dynamic indication.
  • Network node is configured to receive random access signaling associated with random access procedure.
  • the dynamic indication is transmitted in a physical broadcast channel, PBCH.
  • the dynamic indication is included in legacy reserved bits of the PBCH.
  • the dynamic indication is transmitted in downlink control information, DCI, carried in the physical downlink control channel, PDCCH.
  • the dynamic indication is included in the DCI that is scrambled by at least one of a system information radio network temporary identifier, SI-RNTI, and a paging RNTI, P-RNTI.
  • the dynamic indication is included in legacy reserved bits in the PDCCH.
  • the dynamic indication is a paging message.
  • the dynamic indication is included in a physical downlink shared channel, PDSCH, message.
  • the random access procedure is initiated by causing transmission of a random access preamble message using the second set of random access resources based on the dynamic indication indicating the second set of random access resources is available.
  • the first set of uplink random access resources are always-available resources; and the second set of uplink random access resources are dynamically available resources.
  • the resource indication is transmitted in system information broadcast by the network node.
  • At least one of the first and second sets of uplink random access resources is configured with a validity duration, the validity duration being measured from a reference point and indicating a duration for which the respective set of resources is available.
  • a method implemented in a wireless device includes receiving a resource indication of at least first and second sets of uplink random access resources.
  • the method includes receiving a dynamic indication associated with a random access procedure.
  • the method includes initiating, based on the dynamic indication, the random access procedure using one of the first set of uplink random access resources and the second set of uplink random access resources.
  • the dynamic indication is received in a physical broadcast channel, PBCH.
  • the dynamic indication is included in legacy reserved bits of the PBCH.
  • At least one of the first and second sets of uplink random access resources is configured with a validity duration, the validity duration being measured from a reference point and indicating a duration for which the respective set of resources is available.
  • the validity duration is at least one of a time and a number of instances of random access resources after the reference point.
  • the dynamic indication is transmitted in a physical broadcast channel, PBCH.
  • the dynamic indication is included in legacy reserved bits of the PBCH.
  • the dynamic indication is transmitted in downlink control information, DCI, carried in the physical downlink control channel, PDCCH.
  • the dynamic indication is included in legacy reserved bits in the PDCCH.
  • the dynamic indication is a paging message.
  • the dynamic indication is included in a physical downlink shared channel, PDSCH, message.
  • the random access procedure is initiated by causing transmission of a random access preamble message using the second set of random access resources based on the dynamic indication indicating the second set of random access resources is available.
  • the first set of uplink random access resources are always-available resources; and the second set of uplink random access resources are dynamically available resources.
  • the resource indication is transmitted in system information broadcast by the network node.
  • At least one of the first and second sets of uplink random access resources is configured with a validity duration, the validity duration being measured from a reference point and indicating a duration for which the respective set of resources is available.
  • FIG. 8 is a flowchart illustrating example methods implemented in a communication system including a host computer, a network node and a wireless device for receiving user data at a host computer according to some embodiments of the present disclosure
  • FIG. 18 is a flowchart of another example process in a wireless device according to principles disclosed herein.
  • relational terms such as “first” and “second,” “top” and “bottom,” and the like, may be used solely to distinguish one entity or element from another entity or element without necessarily requiring or implying any physical or logical relationship or order between such entities or elements.
  • the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the concepts described herein.
  • the singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.
  • the joining term, “in communication with” and the like may be used to indicate electrical or data communication, which may be accomplished by physical contact, induction, electromagnetic radiation, radio signaling, infrared signaling or optical signaling, for example.
  • electrical or data communication may be accomplished by physical contact, induction, electromagnetic radiation, radio signaling, infrared signaling or optical signaling, for example.
  • Coupled may be used herein to indicate a connection, although not necessarily directly, and may include wired and/or wireless connections.
  • the general description elements in the form of “one of A and B” corresponds to A or B.
  • at least one of A and B corresponds to A, B or AB, or to one or more of A and B, or one or both of A and B .
  • at least one of A, B and C corresponds to one or more of A, B and C, and/or A, B, C or a combination thereof.
  • network node can be any kind of network node comprised in a radio network which may further comprise any of base station (BS), radio base station, base transceiver station (BTS), base station controller (BSC), radio network controller (RNC), g Node B (gNB), evolved Node B (eNB or eNodeB), Node B, multi-standard radio (MSR) radio node such as MSR BS, multi-cell/multicast coordination entity (MCE), integrated access and backhaul (IAB) node, relay node, donor node controlling relay, radio access point (AP), transmission points, transmission nodes, Remote Radio Unit (RRU) Remote Radio Head (RRH), a core network node (e.g., mobile management entity (MME), self-organizing network (SON) node, a coordinating node, positioning node, MDT node, etc.), an external node (e.g., 3rd party node, a node external to the current network), nodes in distributed antenna system (
  • BS base station
  • wireless device or a user equipment (UE) are used interchangeably.
  • the wireless device herein can be any type of wireless device capable of communicating with a network node or another wireless device over radio signals, such as wireless device (WD).
  • the wireless device may also be a radio communication device, target device, device to device (D2D) wireless device, machine type wireless device or wireless device capable of machine to machine communication (M2M), low-cost and/or low-complexity wireless device, a sensor equipped with wireless device, Tablet, mobile terminals, smart phone, laptop embedded equipped (LEE), laptop mounted equipment (LME), USB dongles, Customer Premises Equipment (CPE), an Internet of Things (loT) device, or a Narrowband loT (NB-IOT) device, etc.
  • D2D device to device
  • M2M machine to machine communication
  • M2M machine to machine communication
  • M2M machine to machine communication
  • Low-cost and/or low-complexity wireless device a sensor equipped with wireless device
  • Tablet mobile terminals
  • smart phone laptop embedded equipped (LEE), laptop mounted equipment (LME), USB dongles
  • CPE Customer Premises Equipment
  • LoT Customer Premises Equipment
  • NB-IOT Narrowband loT
  • radio network node can be any kind of a radio network node which may comprise any of base station, radio base station, base transceiver station, base station controller, network controller, RNC, evolved Node B (eNB), Node B, gNB, Multi-cell/multicast Coordination Entity (MCE), IAB node, relay node, access point, radio access point, Remote Radio Unit (RRU) Remote Radio Head (RRH).
  • RNC evolved Node B
  • MCE Multi-cell/multicast Coordination Entity
  • IAB node IAB node
  • relay node access point
  • radio access point radio access point
  • RRU Remote Radio Unit
  • RRH Remote Radio Head
  • the communication system 10 may itself be connected to a host computer 24, which may be embodied in the hardware and/or software of a standalone server, a cloud-implemented server, a distributed server or as processing resources in a server farm.
  • the host computer 24 may be under the ownership or control of a service provider, or may be operated by the service provider or on behalf of the service provider.
  • the connections 26, 28 between the communication system 10 and the host computer 24 may extend directly from the core network 14 to the host computer 24 or may extend via an optional intermediate network 30.
  • the intermediate network 30 may be one of, or a combination of more than one of, a public, private or hosted network.
  • the intermediate network 30, if any, may be a backbone network or the Internet. In some embodiments, the intermediate network 30 may comprise two or more subnetworks (not shown).
  • the communication system 10 further includes a network node 16 provided in a communication system 10 and including hardware 58 enabling it to communicate with the host computer 24 and with the wireless device 22.
  • the hardware 58 may include a communication interface 60 for setting up and maintaining a wired or wireless connection with an interface of a different communication device of the communication system 10, as well as a radio interface 62 for setting up and maintaining at least a wireless connection 64 with a wireless device 22 located in a coverage area 18 served by the network node 16.
  • the radio interface 62 may be formed as or may include, for example, one or more RF transmitters, one or more RF receivers, and/or one or more RF transceivers.
  • the communication interface 60 may be configured to facilitate a connection 66 to the host computer 24.
  • the connection 66 may be direct or it may pass through a core network 14 of the communication system 10 and/or through one or more intermediate networks 30 outside the communication system 10.
  • the hardware 58 of the network node 16 further includes processing circuitry 68.
  • the processing circuitry 68 may include a processor 70 and a memory 72.
  • the processing circuitry 68 may comprise integrated circuitry for processing and/or control, e.g., one or more processors and/or processor cores and/or FPGAs (Field Programmable Gate Array) and/or ASICs (Application Specific Integrated Circuits) adapted to execute instructions.
  • FPGAs Field Programmable Gate Array
  • ASICs Application Specific Integrated Circuits
  • the processor 70 may be configured to access (e.g., write to and/or read from) the memory 72, which may comprise any kind of volatile and/or nonvolatile memory, e.g., cache and/or buffer memory and/or RAM (Random Access Memory) and/or ROM (Read-Only Memory) and/or optical memory and/or EPROM (Erasable Programmable Read-Only Memory).
  • volatile and/or nonvolatile memory e.g., cache and/or buffer memory and/or RAM (Random Access Memory) and/or ROM (Read-Only Memory) and/or optical memory and/or EPROM (Erasable Programmable Read-Only Memory).
  • the network node 16 further has software 74 stored internally in, for example, memory 72, or stored in external memory (e.g., database, storage array, network storage device, etc.) accessible by the network node 16 via an external connection.
  • the software 74 may be executable by the processing circuitry 68.
  • the processing circuitry 68 may be configured to control any of the methods and/or processes described herein and/or to cause such methods, and/or processes to be performed, e.g., by network node 16.
  • Processor 70 corresponds to one or more processors 70 for performing network node 16 functions described herein.
  • the memory 72 is configured to store data, programmatic software code and/or other information described herein.
  • the software 74 may include instructions that, when executed by the processor 70 and/or processing circuitry 68, causes the processor 70 and/or processing circuitry 68 to perform the processes described herein with respect to network node 16.
  • processing circuitry 68 of the network node 16 may include a configuration unit 32 which is configured to configure the wireless device with an indication of random access channel, RACH, resources using bits in a downlink channel, the indication being scrambled by a system information-radio network temporary identifier, SI-RNTI.
  • the communication system 10 further includes the wireless device 22 already referred to.
  • the wireless device 22 may have hardware 80 that may include a radio interface 82 configured to set up and maintain a wireless connection 64 with a network node 16 serving a coverage area 18 in which the wireless device 22 is currently located.
  • the radio interface 82 may be formed as or may include, for example, one or more RF transmitters, one or more RF receivers, and/or one or more RF transceivers.
  • the wireless device 22 may further comprise software 90, which is stored in, for example, memory 88 at the wireless device 22, or stored in external memory (e.g., database, storage array, network storage device, etc.) accessible by the wireless device 22.
  • the software 90 may be executable by the processing circuitry 84.
  • the software 90 may include a client application 92.
  • the client application 92 may be operable to provide a service to a human or non-human user via the wireless device 22, with the support of the host computer 24.
  • an executing host application 50 may communicate with the executing client application 92 via the OTT connection 52 terminating at the wireless device 22 and the host computer 24.
  • the client application 92 may receive request data from the host application 50 and provide user data in response to the request data.
  • the OTT connection 52 may transfer both the request data and the user data.
  • the client application 92 may interact with the user to generate the user data that it provides.
  • the processing circuitry 84 may be configured to control any of the methods and/or processes described herein and/or to cause such methods, and/or processes to be performed, e.g., by wireless device 22.
  • the processor 86 corresponds to one or more processors 86 for performing wireless device 22 functions described herein.
  • the wireless device 22 includes memory 88 that is configured to store data, programmatic software code and/or other information described herein.
  • the software 90 and/or the client application 92 may include instructions that, when executed by the processor 86 and/or processing circuitry 84, causes the processor 86 and/or processing circuitry 84 to perform the processes described herein with respect to wireless device 22.
  • the processing circuitry 84 of the wireless device 22 may include a determination unit 34 which is configured to determine one of the first set and the second set to use for random access uplink signaling based at least in part on the indication.
  • the inner workings of the network node 16, wireless device 22, and host computer 24 may be as shown in FIG. 4 and independently, the surrounding network topology may be that of FIG. 3.
  • the OTT connection 52 has been drawn abstractly to illustrate the communication between the host computer 24 and the wireless device 22 via the network node 16, without explicit reference to any intermediary devices and the precise routing of messages via these devices.
  • Network infrastructure may determine the routing, which it may be configured to hide from the wireless device 22 or from the service provider operating the host computer 24, or both. While the OTT connection 52 is active, the network infrastructure may further take decisions by which it dynamically changes the routing (e.g., on the basis of load balancing consideration or reconfiguration of the network).
  • the wireless connection 64 between the wireless device 22 and the network node 16 is in accordance with the teachings of the embodiments described throughout this disclosure.
  • One or more of the various embodiments improve the performance of OTT services provided to the wireless device 22 using the OTT connection 52, in which the wireless connection 64 may form the last segment. More precisely, the teachings of some of these embodiments may improve the data rate, latency, and/or power consumption and thereby provide benefits such as reduced user waiting time, relaxed restriction on file size, better responsiveness, extended battery lifetime, etc.
  • a measurement procedure may be provided for the purpose of monitoring data rate, latency and other factors on which the one or more embodiments improve.
  • the measurement procedure and/or the network functionality for reconfiguring the OTT connection 52 may be implemented in the software 48 of the host computer 24 or in the software 90 of the wireless device 22, or both.
  • sensors (not shown) may be deployed in or in association with communication devices through which the OTT connection 52 passes; the sensors may participate in the measurement procedure by supplying values of the monitored quantities exemplified above, or supplying values of other physical quantities from which software 48, 90 may compute or estimate the monitored quantities.
  • the host computer 24 includes processing circuitry 42 configured to provide user data and a communication interface 40 that is configured to forward the user data to a cellular network for transmission to the wireless device 22.
  • the cellular network also includes the network node 16 with a radio interface 62.
  • the network node 16 is configured to, and/or the network node’s 16 processing circuitry 68 is configured to perform the functions and/or methods described herein for preparing/initiating/maintaining/ supporting/ending a transmission to the wireless device 22, and/or preparing/terminating/ maintaining/ supporting/ ending in receipt of a transmission from the wireless device 22.
  • the host computer 24 includes processing circuitry 42 and a communication interface 40 that is configured to a communication interface 40 configured to receive user data originating from a transmission from a wireless device 22 to a network node 16.
  • the wireless device 22 is configured to, and/or comprises a radio interface 82 and/or processing circuitry 84 configured to perform the functions and/or methods described herein for preparing/initiating/maintaining/ supporting/ending a transmission to the network node 16, and/or preparing/ terminating/maintaining/supporting/ending in receipt of a transmission from the network node 16.
  • FIGS. 3 and 4 show various “units” such as configure unit 32, and determination unit 34 as being within a respective processor, it is contemplated that these units may be implemented such that a portion of the unit is stored in a corresponding memory within the processing circuitry. In other words, the units may be implemented in hardware or in a combination of hardware and software within the processing circuitry.
  • FIG. 5 is a flowchart illustrating an example method implemented in a communication system, such as, for example, the communication system of FIGS. 3 and 4, in accordance with one embodiment.
  • the communication system may include a host computer 24, a network node 16 and a wireless device 22, which may be those described with reference to FIG. 4.
  • the host computer 24 provides user data (Block S100).
  • the host computer 24 provides the user data by executing a host application, such as, for example, the host application 50 (Block SI 02).
  • the host computer 24 initiates a transmission carrying the user data to the wireless device 22 (Block SI 04).
  • the network node 16 transmits to the wireless device 22 the user data which was carried in the transmission that the host computer 24 initiated, in accordance with the teachings of the embodiments described throughout this disclosure (Block SI 06).
  • the wireless device 22 executes a client application, such as, for example, the client application 92, associated with the host application 50 executed by the host computer 24 (Block S108).
  • FIG. 6 is a flowchart illustrating an example method implemented in a communication system, such as, for example, the communication system of FIG. 3, in accordance with one embodiment.
  • the communication system may include a host computer 24, a network node 16 and a wireless device 22, which may be those described with reference to FIGS. 3 and 4.
  • the host computer 24 provides user data (Block SI 10).
  • the host computer 24 provides the user data by executing a host application, such as, for example, the host application 50.
  • the host computer 24 initiates a transmission carrying the user data to the wireless device 22 (Block SI 12).
  • the transmission may pass via the network node 16, in accordance with the teachings of the embodiments described throughout this disclosure.
  • the wireless device 22 receives the user data carried in the transmission (Block SI 14).
  • FIG. 7 is a flowchart illustrating an example method implemented in a communication system, such as, for example, the communication system of FIG. 3, in accordance with one embodiment.
  • the communication system may include a host computer 24, a network node 16 and a wireless device 22, which may be those described with reference to FIGS. 3 and 4.
  • the wireless device 22 receives input data provided by the host computer 24 (Block SI 16).
  • the wireless device 22 executes the client application 92, which provides the user data in reaction to the received input data provided by the host computer 24 (Block SI 18).
  • the wireless device 22 provides user data (Block S120).
  • the wireless device provides the user data by executing a client application, such as, for example, client application 92 (Block S122).
  • client application 92 may further consider user input received from the user.
  • the wireless device 22 may initiate, in an optional third substep, transmission of the user data to the host computer 24 (Block S124).
  • the host computer 24 receives the user data transmitted from the wireless device 22, in accordance with the teachings of the embodiments described throughout this disclosure (Block S126).
  • FIG. 8 is a flowchart illustrating an example method implemented in a communication system, such as, for example, the communication system of FIG. 3, in accordance with one embodiment.
  • the communication system may include a host computer 24, a network node 16 and a wireless device 22, which may be those described with reference to FIGS. 3 and 4.
  • the network node 16 receives user data from the wireless device 22 (Block S128).
  • the network node 16 initiates transmission of the received user data to the host computer 24 (Block S130).
  • the host computer 24 receives the user data carried in the transmission initiated by the network node 16 (Block SI 32).
  • FIG. 9 is a flowchart of an example process in a network node 16 for dynamic uplink access signaling via layer 1 broadcast channels.
  • One or more blocks described herein may be performed by one or more elements of network node 16 such as by one or more of processing circuitry 68 (including the configuration unit 32), processor 70, radio interface 62 and/or communication interface 60.
  • Network node 16 such as via processing circuitry 68 and/or processor 70 and/or radio interface 62 and/or communication interface 60 is configured to configure the wireless device with an indication of random access channel, RACH, resources using bits in a downlink channel, the indication being scrambled by a system information-radio network temporary identifier, SI-RNTI (Block SI 34).
  • RACH random access channel
  • SI-RNTI system information-radio network temporary identifier
  • the indication is configured in one of a physical broadcast channel, PBCH, a physical downlink control channel, PDCCH, and a physical downlink shared channel, PDSCH. In some embodiments, the indication indicates an availability of at least one of two sets of resources. In some embodiments, the indication is configured in a paging-related message. In some embodiments, the indication is configured in system information, SI.
  • FIG. 10 is a flowchart of an example process in a wireless device 22 according to some embodiments of the present disclosure.
  • One or more blocks described herein may be performed by one or more elements of wireless device 22 such as by one or more of processing circuitry 84 (including the determination unit 34), processor 86, radio interface 82 and/or communication interface 60.
  • Wireless device 22 such as via processing circuitry 84 and/or processor 86 and/or radio interface 82 is configured to receive an indication of a first set of uplink random access resources and a second set of uplink random access resources (Block SI 36).
  • the process also includes determining one of the first set and the second set to use for random access uplink signaling based at least in part on the indication (Block SI 38).
  • the method also includes monitoring a random access response, RAR, message in response to the indication.
  • RAR random access response
  • the indication is configured in one of a physical broadcast channel, PBCH, and a physical downlink control channel, PDCCH, carrying downlink control information, DCI, contents scrambled by a system information radio network temporary identifier, SI-RNTI.
  • the indication is configured in a paging-related message.
  • the network node 16 has to always activate at least one set, in another example, the network node 16 is also allowed to not activate any sets for a specific time duration, e.g., set in the standard or configured by the network node 16. If the wireless device 22 does not receive any active set, then it has to monitor the other occasions.
  • a wireless device 22 may soft-combine PBCH transmissions across a transmit time interval (i.e. a first transmission and its repetitions).
  • a transmit time interval i.e. a first transmission and its repetitions.
  • the same availability information is indicated in a first transmission of PBCH and its repetition.
  • this can imply that the availability information signaling can be changed every periodicity (e.g., 80 ms).
  • An example is shown in FIG. 15.
  • the RACH availability information is transmitted along with SIB1 scheduling, i.e. when the system information indicator in the DCI is set to ‘O’.
  • Dynamic indication is used for indicating availability for a set of resources that are available in a dynamic fashion. If a set of resources is available in semi-static manner, there is no need for dynamic indication for such a set of resources.
  • DCI format 1-0 scrambled with P- RNTI or PEI-RNTI can also be used to indicate the availability of the second set. This need not necessarily be associated with the resources to be used for paging response, but as a dynamic indication for resources to be used from now on for any type of access. This is particularly useful as such a wireless device 22 may not monitor the PBCH or DCI 1-0 scrambled with SI- RNTI constantly. In case the wireless device 22 is in RRC connected mode, other DCIs including DCIs scrambled with C-RNTI, or group-common RNTIs can also be used.
  • a similar procedure can be applied for the case where only the second set of resources are configured, i.e., the network node 16 configures dynamic RACH resources and includes associated availability field information in the first system information block.
  • a wireless device 22 acquires an SSB and a first system information block.
  • the wireless device 22 determines a set of RACH resources and an associated availability field information based on the first system information block.
  • the wireless device 22 detects a first PDCCH with DCI associated with a SI-RNTI.
  • the wireless device 22 acquires the RACH availability information from the PDCCH.
  • the wireless device 22 transmits RACH based on the acquired RACH availability information and monitors for a random access response message.
  • the set of resources for uplink random access can include one or more of PRACH preamble formats, PRACH occasions, time-domain PRACH occasions, etc. It may be noted that it is not only the PRACH specifics that can be configured. Configurations for any other type of random-access-related parameters such as number of preamble transmissions, power ramping steps, ra-response window, etc., may also be included in the configuration and configured separately in the first and second set of resources.
  • the first set and second set of resources for uplink random access can be independently configured.
  • the first set can be configured to be associated with 4-step RACH procedure
  • the second set can be configured to be associated with a 2-step RACH procedure.
  • the indicated validity duration may also depend on the method of indication, e.g., if PBCH is used, the validity duration is 100 ms, if DCI 1-0 scrambled with SI-RNTI is used, 200 ms, or if DCI 1-0 scrambled with P-RNTI is used, the validity duration is 1 sec and so on.
  • Example Al A network node 16 configured to communicate with a wireless device 22, the network node 16 configured to, and/or comprising a radio interface 62 and/or comprising processing circuitry 36 configured to configure the wireless device 22 with an indication of random access channel, RACH, resources using bits in a downlink channel, the indication being scrambled by a system information-radio network temporary identifier, SI-RNTI.
  • RACH random access channel
  • SI-RNTI system information-radio network temporary identifier
  • Example A5. The network node 16 of any of Examples A1-A4, wherein the indication is configured in system information, SI.
  • Example Bl A method implemented in a network node 16, the method comprising: configuring the wireless device 22 with an indication of random access channel, RACH, resources using bits in a downlink channel, the indication being scrambled by a system information-radio network temporary identifier, SI-RNTI.
  • Example B2 The method of Example Bl, wherein the indication is configured in one of a physical broadcast channel, PBCH, a physical downlink control channel, PDCCH, and a physical downlink shared channel, PDSCH.
  • Example B3 The method of any of Examples Bl and B2, wherein the indication indicates an availability of at least one of two sets of resources.
  • Example B4 The method of any of Examples B1-B3, wherein the indication is configured in a paging-related message.
  • Example B5. The method of any of Examples B1-B4, wherein the indication is configured in system information, SI.
  • Example Cl. A wireless device 22 configured to communicate with a network node 16, the wireless device configured to, and/or comprising a radio interface 82 and/or processing circuitry 84 configured to receive an indication of a first set of uplink random access resources and a second set of uplink random access resources; and determine one of the first set and the second set to use for random access uplink signaling based at least in part on the indication.
  • Example C2 The wireless device 22 of Example Cl, wherein the wireless device 22, radio interface 82 and/or processing circuitry 84 are further configured to monitor a random access response, RAR, message in response to the indication.
  • RAR random access response
  • Example C3 The wireless device 22 of any of Examples Cl and C2, wherein the indication is configured in one of a physical broadcast channel, PBCH, and a physical downlink control channel, PDCCH, carrying downlink control information, DCI, contents scrambled by a system information radio network temporary identifier, SI-RNTI.
  • PBCH physical broadcast channel
  • PDCCH physical downlink control channel
  • DCI downlink control information
  • SI-RNTI system information radio network temporary identifier
  • Example C4 The wireless device 22 of any of Examples C1-C3, wherein the indication is configured in a paging-related message.
  • Example DI A method implemented in a wireless device 22, the method comprising: receiving an indication of a first set of uplink random access resources and a second set of uplink random access resources; and determining one of the first set and the second set to use for random access uplink signaling based at least in part on the indication.
  • Example D2 The method of Example DI, further comprising monitoring a random access response, RAR, message in response to the indication.
  • Exampl eD3. The method of any of Examples DI and D2, wherein the indication is configured in one of a physical broadcast channel, PBCH, and a physical downlink control channel, PDCCH, carrying downlink control information, DCI, contents scrambled by a system information radio network temporary identifier, SI-RNTI.
  • ExampleD4 The method of any of Examples D1-D3, wherein the indication is configured in a paging-related message.
  • the concepts described herein may be embodied as a method, data processing system, computer program product and/or computer storage media storing an executable computer program. Accordingly, the concepts described herein may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects all generally referred to herein as a “circuit” or “module.” Any process, step, action and/or functionality described herein may be performed by, and/or associated to, a corresponding module, which may be implemented in software and/or firmware and/or hardware.
  • These computer program instructions may also be stored in a computer readable memory or storage medium that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instruction means which implement the function/act specified in the flowchart and/or block diagram block or blocks.
  • the computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
  • Computer program code for carrying out operations of the concepts described herein may be written in an object oriented programming language such as Python, Java® or C++.
  • the computer program code for carrying out operations of the disclosure may also be written in conventional procedural programming languages, such as the "C" programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer.
  • the remote computer may be connected to the user's computer through a local area network (LAN) or a wide area network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider).
  • LAN local area network
  • WAN wide area network
  • Internet Service Provider for example, AT&T, MCI, Sprint, EarthLink, MSN, GTE, etc.

Landscapes

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

Abstract

L'invention divulgue un procédé, un système et un appareil. Un dispositif sans fil est en communication avec un nœud de réseau. Le dispositif sans fil comprend un ensemble de circuits de traitement configuré pour recevoir une indication de ressources d'au moins des premier et second ensembles de ressources d'accès aléatoire de liaison montante. L'ensemble de circuits de traitement est configuré pour recevoir une indication dynamique associée à une procédure d'accès aléatoire. L'ensemble de circuits de traitement est configuré pour initier, sur la base de l'indication dynamique, la procédure d'accès aléatoire à l'aide de l'un du premier ensemble de ressources d'accès aléatoire de liaison montante et du second ensemble de ressources d'accès aléatoire de liaison montante.
EP23721037.2A 2022-04-29 2023-04-27 Signalisation d'accès de liaison montante dynamique par le biais de canaux de diffusion de couche 1 Pending EP4516050A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263336734P 2022-04-29 2022-04-29
PCT/SE2023/050392 WO2023211348A1 (fr) 2022-04-29 2023-04-27 Signalisation d'accès de liaison montante dynamique par le biais de canaux de diffusion de couche 1

Publications (1)

Publication Number Publication Date
EP4516050A1 true EP4516050A1 (fr) 2025-03-05

Family

ID=86286554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23721037.2A Pending EP4516050A1 (fr) 2022-04-29 2023-04-27 Signalisation d'accès de liaison montante dynamique par le biais de canaux de diffusion de couche 1

Country Status (2)

Country Link
EP (1) EP4516050A1 (fr)
WO (1) WO2023211348A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120786713A (zh) * 2024-04-02 2025-10-14 华为技术有限公司 一种通信方法及装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10405354B2 (en) * 2016-12-09 2019-09-03 Samsung Electronics Co., Ltd. Method and apparatus for RACH procedure in wireless systems

Also Published As

Publication number Publication date
WO2023211348A1 (fr) 2023-11-02

Similar Documents

Publication Publication Date Title
US12133170B2 (en) Methods for physical downlink control channel (PDCCH) based wake up signal (WUS) configuration
US11382029B2 (en) Method and user equipment (UE) for provisioning minimum system information (MSI) in wireless communication system
US11751252B2 (en) Signaling mechanism for message and physical uplink shared channel repetitions
US20240015656A1 (en) Wake-up signal and go-to-sleep signal for sidelink communications
CN113767585B (zh) 利用下行链路半持久调度的针对多个物理下行链路共享信道的混合自动重传请求反馈
US12193102B2 (en) Methods and apparatuses for adaptive discontinuous reception configuration
US20210400580A1 (en) Power-efficient configuration of time offset values
US20250324432A1 (en) Enhanced single downlink control information multi-slot scheduling
WO2020145878A1 (fr) Procédé pour amener un dispositif sans fil à entrer dans un état de veille sur la base d'une indication gts dans des dci reçues
US20240137908A1 (en) Method and apparatus for paging procedure in wireless communication system
US12082210B2 (en) Scell management for CA
EP4055942A1 (fr) Procédés d'utilisation d'indication de priorité associée à une transmission cg/sps
US20240284247A1 (en) Enabling redcap wireless devices with reduced maximum data rate
WO2022216212A1 (fr) Signalisation d'indicateurs précoces de radiomessagerie (pei) par informations supplémentaires
EP4516050A1 (fr) Signalisation d'accès de liaison montante dynamique par le biais de canaux de diffusion de couche 1
US20250286682A1 (en) Methods and mechanisms for aperiodic and semi-persistent tracking reference signals (trs)
WO2023211349A1 (fr) Signalisation pour réduire la consommation d'énergie d'un réseau et d'un dispositif sans fil
WO2022079310A1 (fr) Configuration de signal de réveil pour le téléavertissement d'un dispositif sans fil new radio

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20241127

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)