Methods, apparatus and systems for TRP cooperation set configuration and switching
By configuring UEs with TRP cooperation sets and managing RF maps, the method addresses the challenge of frequent TRP changes, enhancing beam switching and recovery efficiency in user-centric cell-free networks.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2025-01-18
- Publication Date
- 2026-05-21
AI Technical Summary
In user-centric cell-free networks, UEs face challenges in managing large RF maps due to UE mobility, which leads to frequent changes in potential serving TRPs, necessitating an efficient way to manage multiple RF maps and facilitate faster, more reliable beam switching and recovery.
The method involves configuring UEs with TRP cooperation sets, providing RF map information, reference signal measurement and reporting configurations, and enabling updates, activations, deactivations, and switches of TRP configurations to optimize beam management.
This approach enhances beam switching and recovery efficiency by leveraging RF map information, reducing measurement overhead and improving communication reliability and capacity in dynamic environments.
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Figure CN2025073155_21052026_PF_FP_ABST
Abstract
Description
METHODS, APPARATUS AND SYSTEMS FOR TRP COOPERATION SET CONFIGURATION AND SWITCHINGTECHNICAL FIELD
[0001] The present disclosure relates generally to wireless communications, and in particular to methods and apparatuses to support transmit receive point (TRP) , or more generally, network side device, cooperation set configuration and switching.BACKGROUND
[0002] Integrated Sensing and Communication (ISAC) and standard reference signal measurement can provide wireless networks with relevant information about the radio-frequency (RF) propagation environment. Such RF propagation environment can generally be divided into a set of stable, more deterministic multi-path components (MPC) , due to static environment objects (e.g., buildings, walls, etc. ) , and a set of more dynamic, stochastic MPC, due to moving objects (e.g., vehicles, pedestrians, etc. ) . ISAC and standard reference signal measurement, along with statistical inference models (e.g., artificial intelligence) can be used to estimate and predict the RF propagation environment (e.g., MPC parameters) . Such models, often referred to as the RF maps, can be provided to the user equipment / device (UE) in order to reduce the measurement overhead and to enable faster, more reliable beam switching and beam recovery procedures.
[0003] In user-centric cell-free networks (UCCF) , the network can be deployed with multiple geographically-distributed transmissions and reception points (TRP) that can jointly serve the UEs, in order to provide increased reliability, higher capacity and better coverage. From RF propagation perspective, the UE experiences a different wireless communication channel with each TRP. Therefore, to exploit the benefits provided by the knowledge of RF maps, the UE may acquire and store the RF map information from multiple potential serving TRPs. These RF maps may be relatively large in size (such that the UE cannot store the RF map for the whole network) . Nonetheless, due to UE mobility, the set of potential serving TRPs can change over time. Therefore, an efficient way to manage the multiple RF maps would be beneficial.SUMMARY
[0004] The present disclosure provides methods and signaling for the network to configure a UE with one or more TRP cooperation sets (i.e., sets of potential serving TRPs) , wherein the UE is provided with configuration for one or more TRPs. The TRP configuration can include, for instance, the RF map, and configurations for reference signal measurement and reporting. The RF map may comprise a list, a look-up table, a database, an inference model (e.g., a machine learning (ML) model) , or other alike. The UE can, for instance, use such RF map information based on the UE position and orientation, to retrieve one or more of the following: long-term channel information, e.g., MPCs (angles of departure (AoD) , angles of arrival (AoA) , Power, Delay, cross polarization ratio (XPR) ) ; channel state information (CSI) -related information (e.g., channel quality indicator (CQI) , pre-coding matrix indicator (PMI) , rank indicator (RI) ) ; quasi-colocation (QCL) / transmission configuration information (TCI) configuration; reference signal measurement and reporting configuration; timing alignment configuration. The disclosure also provides methods and signaling for updating, activating, deactivating, switching, and releasing a TRP configuration. The disclosure also provides methods and signaling for updating, activating, deactivating, switching, and releasing a TRP cooperation set configuration in case of configuration of multiple cooperation sets.
[0005] In addition, the present disclosure provides means for the network to indicate the TRP configuration used during data transmission (e.g., indicating to the UE the RF map the UE can use to retrieve information for designing precoders and / or combiners, configuring time alignment, performing power control, etc. ) . Furthermore, the present disclosure also provides configuration for UE-initiated TRP configuration update, as well as for TRP and TRP cooperation set switching.
[0006] According to a first aspect, there is provided amethod for use at a client side apparatus in a wireless network, the method including: receiving one or more configuration information for each of at least one network node of at least one network node cooperation set; and wherein the one or more configuration information is activated, deactivated, released or modified upon receiving indicationinformation.
[0007] In some examples, each configuration information of the one or more configuration information comprises aconfiguration element that comprises one or more of: at least one radio environment information parameter set; at least one reference signal parameter; at least one transmission parameter set; and at least one reception parameter set.
[0008] In some examples, the at least one radio environment information parameter setcomprises one or more of: at least one or more reference signal parameter; at least one transmission parameter; at least onereception parameter; at least one estimate of the wireless channel; and at least one estimate of the wireless channel multipath components.
[0009] In some examples, the at least onetransmission parameter set or the at least one reception parameter set includes one or more of: beamforming information; time alignment information; transmission configuration indication state configuration; channel quality indicator; precoding matrix indicator; rank indicator; and modulation and coding scheme.
[0010] In some examples, the at least one reference signal parameter includes one or more of: reference signal measurement configuration parameters; reference signal reporting configuration parameters; expected value of at least one of reference signal received power, signal to interference-plus-noise ratio, or signal to noise ratio corresponding to a reference signal; and expected range of at least one of reference signal received power, signal to interference-plus-noise ratio, or signal to noise ratio corresponding to a reference signal.
[0011] In some examples, the at least one estimate of the wireless channel is represented by a scalar, a vector, a matrix, a tensor.
[0012] In some examples, the at least one estimate of the wireless channel multipath components includes one or more of: angles of arrival; angles of departure; path delay; path power; cross polarization ratio; and initial phases.
[0013] In some examples, at least one parameter in the at least one radio environment information parameter set is related to at least one of location and orientation of the client side device.
[0014] In some examples, the at least one radio environment information parameter set is in the format of at least one of: a 2D or 3D representation of an environment local to the client side device; a look-up table; a database; and an inference model.
[0015] In some examples, when the indication information includes configuration information for a different network node than the network node, the method further includes: receiving the configuration information including one or more configuration elements for the differentnetwork node.
[0016] In some examples, when the indication information includes updated configuration information of the configuration element for at least one of the network nodes in the network node cooperation set, and the method further includes: receiving the updated configuration information of the configuration element for at least one of the network nodes in the network node cooperation set; and modifying one or more configuration elements based on the received updated configuration information.
[0017] In some examples, the method further includes sending a configuration update request.
[0018] In some examples, the method further includes: monitoring a parameter related to sending the configuration update request; and when the parameter is triggered, sending the configuration update request.
[0019] In some examples, when the indication information includes activation or deactivation information indicating a network node to be activated or deactivated, the method further includes: receiving activation or deactivation information; and activating or deactivating the configuration information, respectively, for the indicated network node.
[0020] In some examples, when the indication information includes information for switching a network node, the method further includes: receiving the information for switching a network node; and switching the active configuration information from a first network node in the at least one network node cooperation set to a second network node in the network node cooperation set.
[0021] In some examples, the method further includes: sending a network node switching request for switching the network node.
[0022] In some examples, the method further includes: monitoring a parameter related to switching the network node; and when the parameter is triggered, sending the request for switching the network node.
[0023] In some examples, when the indication information includes release network node configuration information identifying one or more network node configurations associated with the network node cooperation set, the method further includes: receiving the release network node configuration information identifying one or more network node configurations associated with the network node cooperation set; and releasing the one or more network node configurations.
[0024] In some examples, the method further includes: receiving from a first network node in the at least one network node cooperationset, scheduling information for a data transmission from a second network node in the network node cooperationset; and receiving, from the second network node, the data transmission.
[0025] In some examples, a network node cooperation set group includes multiple network node configurations, each network node cooperation set group associated with a network node group identification (ID) , the network node group ID being associated with a set of network node configuration IDs, each network node configuration ID associated with the configuration of a network node included in a network node cooperationset of the network node cooperationset group.
[0026] In some examples, receiving the one or more configuration information includes receiving network node cooperation set group configuration information comprising a network node group ID.
[0027] In some examples, the method further includes: receiving network node cooperation set group configuration information comprising the network node group ID associated with the new network node cooperation set group.
[0028] In some examples, the method further includes: modifying the configuration information for one or more network node groups in the respective network node cooperationsets of the network node cooperationset group associated with the network node group ID, upon receiving at least one of: a list of network node configuration IDs corresponding to network node configurations belonging to the network node cooperation set; or a list of network node configuration IDs to add to the network node group configuration; and a list of network node configuration IDs to remove from the network node group configuration.
[0029] In some examples, when the indication information includes activation or deactivation information indicating a network node group to be activated or deactivated, the method further includes: receiving activation or deactivation information; and activating or deactivating the configuration information for the indicated network node group associated with the network node group ID.
[0030] In some examples, when the indication information includes information for switching a network node group, the method further includes: receiving switch network node group information; and switching the active configuration information from a first network node group to a second network node group based on the switch network node group information.
[0031] In some examples, when the indication information includes release network node group configuration information identifying one or more network node group configurations associated with the network node cooperation set, the method further includes: receiving release network node group configuration information identifying one or more network node group configurations associated with the network node cooperation set group; and releasing one or more network node group configurations based on the release network node group configuration information.
[0032] In some examples, the received configuration information for at least one network node includes at least one of: network node configuration update request trigger configuration; and network node switching request trigger configuration.
[0033] In some examples, the method further includes: transmitting feedback information pertaining to measurement reports or transmission parameters.
[0034] In some examples, the feedback information is based on at least one of: measurement of reference signals between the client side apparatus and the one or more network side devices; and information in the radio environment information parameter set.
[0035] In some examples, the feedback information includes at least one of: reference signal received power; channel quality indicator; precoding matrix indicator; rank indicator; and signal to interference-plus-noise ratio.
[0036] In some examples, the reference signals include at least one of synchronization signal block, a channel state information reference signal, or a sounding reference signal.
[0037] According to a second aspect, there is provided a method for use in a wireless network, the method including: transmitting one or more configuration information for each of at least one network node of at least one network node cooperationset, wherein the configuration is activated, deactivated, released or modified upon receiving indicationinformation.
[0038] In some examples, each configuration information of the one or more configuration informationincludes aconfiguration element that includes one or more of: at least one radio environment information parameter set; at least one reference signal parameter; at least one transmission parameter set; and at least one reception parameter set.
[0039] In some examples, the at least one radio environment information parameter set include one or more of: at least one reference signal parameter; at least one transmission parameter; at least one reception parameter; at least one reference signal parameter; one or more estimateof the wireless channel; and at least one estimate of the wireless channel multipath components.
[0040] In some examples, the at least one transmission parameter set or reception parameter set includes one or more of: beamforming information; time alignment information; transmission configuration indication state configuration; channel quality indicator; precoding matrix indicator; rank indicator; and modulation and coding scheme.
[0041] In some examples, the at least one reference signal parameter includes one or more of: reference signal measurement configuration parameters; reference signal reporting configuration parameters; expected value of at least one of reference signal received power, signal to interference-plus-noise ratio, or signal to noise ratio corresponding to a reference signal; andexpected range of at least one of reference signal received power, signal to interference-plus-noise ratio, or signal to noise ratio corresponding to a reference signal.
[0042] In some examples, the at least one estimate of the wireless channel is represented by a scalar, a vector, a matrix, a tensor.
[0043] In some examples, the at least one estimate of the wireless channel multipath components includes one or more of: angles of arrival; angles of departure; path delay; path power; cross polarization ratio; andinitial phases.
[0044] In some examples, wherein at least one parameter in the information in the at least one radio environment information parameter set is related to at least one of location and orientation of the client side device.
[0045] In some examples, the at least one radio environment information parameter set is in the format of at least one of: a 2D or 3D representation of an environment local to the client side device; a look-up table; a database; and an inference model.
[0046] In some examples, when the indication information includes configuration information for a different network node than the network node, and the method further includes: transmitting configuration information comprising one or more configuration elements for the differentnetwork node.
[0047] In some examples, the method further includes: transmitting updated configuration information of the configuration element for a network node enabling modification of the configuration element.
[0048] In some examples, the method further includes receiving a configuration update request from the client side device.
[0049] In some examples, when the indication information includes activation or deactivation information indicating a network node to be activated or deactivated, the method further includes: transmittingthe activation or deactivation information for an indicated network node in the network node cooperation set to enable activating or deactivating of the configuration information for the indicated network node.
[0050] In some examples, when the indication information includes information for switching a network node, the method further includes: transmittingthe information for switching a network node to enable switching active configuration information for a first network node included in the network node cooperation set to a second network node in the network node cooperation set.
[0051] In some examples, the method further includes receiving a network node switching request from the client side device for enabling switching the network node.
[0052] In some examples, when the indication information includes release network node configuration information identifying one or more network node configurations associated with the network node cooperation set, the method further includes: transmittingthe release network node configuration information identifying one or more network node configurations associated with the network node cooperationset included in the maintained collection to enable releasing the one or more network node configurations.
[0053] In some examples, the method further includes: transmitting from a first network node in the network node cooperationset, scheduling information for a data transmission from a second network node in the network node cooperationset.
[0054] In some examples, multiple network node cooperationsets are a network node cooperationset group, each network node cooperationset group associated with a network node group identification (ID) , the network node group ID being associated with a set of network node configuration IDs, each network node configuration ID associated with the configuration of a network node included in a network node cooperationset of the network node cooperationset group.
[0055] In some examples, the transmitting, to the client side device, the configuration information includes transmitting network node cooperation set group configuration information comprising a network node group ID based on the associated network node configuration ID, in the respective network node cooperationsets of the network node cooperationset group associated with the network node group ID.
[0056] In some examples, the method further includes transmittingnetwork node cooperation set group configuration information comprising the network node group ID associated with a new network node cooperation set group.
[0057] In some examples, the method further includes transmittingat least one of: a list of network node configuration IDs corresponding to network node configurations belonging to the network node cooperation set; or a list of network node configuration IDs to add to the network node group configuration; and a list of configuration IDs to remove from the network node group configuration.
[0058] In some examples, when the indication information includes activation or deactivation information indicating a network node group to be activated or deactivated, the method further includes transmitting the activation or deactivation information for an indicated network node group to enable activating or deactivating, respectively, the configuration information for the indicated network node group associated with the network node group ID.
[0059] In some examples, wherein the indication information includes information for switching a network node group, the method further includes transmitting the switch network node group information to enable switching the active configuration information from a first network node group toa second network node group.
[0060] In some examples, when the indication information includes release network node group configuration information identifying one or more network node configurations associated with the network node cooperation set, the method further includes transmittingthe release network node group configuration information identifying one or more network node group configurations associated with the network node cooperationset group to enable releasing the one or more network node groups.
[0061] In some examples, the transmitted configuration information for at least one network node includes at least one of: network node configuration update request trigger configuration; and network node switching request trigger configuration.
[0062] In some examples, the method further includes: receiving feedback information pertaining to measurement reports or transmission parameters.
[0063] In some examples, the feedback information is based on at least one of: measurement of reference signals between the client side apparatus and one or more network side devices; and information in the radio environment information parameter set.
[0064] In some examples, the feedback information includes at least one of: reference signal received power; channel quality indicator; precoding matrix indicator; rank indicator; and signal to interference-plus-noise ratio.
[0065] In some examples, the reference signals include at least one of synchronization signal block, a channel state information reference signal, or a sounding reference signal.
[0066] According to a third aspect, a communication apparatus is described. The communication apparatus has a function of implementing the first aspect. For example, the communication apparatus includes a corresponding module, unit, or means for performing operations in the first aspect. The module, unit, or means may be specifically implemented by using software, may be implemented by using hardware, or may be implemented by using software in combination with hardware.
[0067] According to a fourth aspect, a communication apparatus is described. The communication apparatus has a function of implementing the second aspect. For example, the communication apparatus includes a corresponding module, unit, or means for performing operations in the second aspect. The module, unit, or means may be specifically implemented by using software, may be implemented by using hardware, or may be implemented by using software in combination with hardware.
[0068] According to a fifth aspect, another communication apparatus is described. The communication apparatus includes a memory and one or more processors. The memory is configured to store a part or all of a necessary computer program or instructions for implementing a function in the first aspect. The one or more processors may execute the computer program or the instructions, and when the computer program or the instructions is / are executed, the communication apparatus is enabled to implement the method in any possible design or implementation of the first aspect.
[0069] According to a sixth aspect, another communication apparatus is described. The communication apparatus includes a memory and one or more processors. The memory is configured to store a part or all of a necessary computer program or instructions for implementing a function in the second aspect. The one or more processors may execute the computer program or the instructions, and when the computer program or the instructions is / are executed, the communication apparatus is enabled to implement the method in any possible design or implementation of the second aspect.
[0070] In someimplementations, the communication apparatus may further include an interface circuit, and the processor is configured to communicate with another apparatus or component through the interface circuit.
[0071] In some implementations, the communication apparatus may further include the memory.
[0072] The communication apparatus may be a terminal, a module in a terminal, or a chip responsible for a communication function in a terminal, for example, a modem chip (also referred to as a baseband chip) or an SoC chip or an SIP chip that includes a modem module.
[0073] According to a seventh aspect, a communication system is described. The communication system includes a processor and a computer-readable medium having stored thereon, computer executable isntructions that, when exectued, cause the system to perform the methods as any one of the possible designs of the first aspect or second aspect.
[0074] According to an eighth aspect, a computer-readable storage medium is described. The computer-readable storage medium stores computer-readable instructions, and when a computer reads and executes the computer-readable instructions, the computer is enabled to perform the method in any one of the possible designs of the first aspect or second aspect.
[0075] According to a ninth aspect, this application provides a computer program product. When a computer reads and executes the computer program product, the computer is enabled to perform the method in any one of the possible designs of the first aspect or second aspect.
[0076] According to a tenth aspect, this application provides a system including at least one of an apparatus at a UE of the present application, or an apparatus at a network device of the present application.
[0077] According to an eleventh aspect, this application provides a method performed by a system including at least one of an apparatus at a UE of the present application, and an apparatus at a network device of the present application.
[0078] This application encompasses various implementations, including not only method implementations, but also other implementations such as apparatus implementations and implementations related to non-transitory computer readable storage media. implementations may incorporate, individually or in combinations, the features disclosed herein.BRIEF DESCRIPTION OF THE DRAWINGS
[0079] For a more complete understanding of the present implementations, and the advantages thereof, reference is now made, by way of example, to the following descriptions taken in conjunction with the accompanying drawings, in which:
[0080] FIG. 1 is a schematic diagram of a communication system in which the present disclosure may occur.
[0081] FIG. 2 is another schematic diagram of a communication system in which the present disclosure may occur.
[0082] FIG. 3 is a block diagram illustrating units or modules in a device in which the present disclosure may occur.
[0083] FIG. 4 is a block diagram illustrating units or modules in a device in which the present disclosure may occur.
[0084] FIG. 5 is a block diagram illustrating units or modules in a device in which the present disclosure may occur.
[0085] FIG. 6 is a schematic diagram illustrating configuration of a TRP cooperation setin accordance with aspects of the present disclosure.
[0086] FIG. 7 is a schematic diagram illustrating addition of a new TRP configuration to the TRP cooperation setin accordance with aspects of the present disclosure.
[0087] FIG. 8 is a schematic diagram illustrating switching active TRPs in a TRP cooperation set in accordance with aspects of the present disclosure.
[0088] FIG. 9 is a schematic diagram illustrating releasing a TRP configuration from the TRP cooperation set in accordance with aspects of the present disclosure.
[0089] FIG. 10 is a schematic diagram illustrating updating a TRP configuration in a TRP cooperation set in accordance with aspects of the present disclosure.
[0090] FIG. 11 is a schematic diagram illustrating TRP indication for data transmission and data transmissionin accordance with aspects of the present disclosure.
[0091] FIG. 12 is a schematic diagram illustrating configuration of aTRP group in accordance with aspects of the present disclosure.
[0092] FIG. 13 is a schematic diagram illustrating configuration of an additional TRP group in accordance with aspects of the present disclosure.
[0093] FIG. 14 is a schematic diagram illustrating TRP group switching in accordance with aspects of the present disclosure.
[0094] FIG. 15 is a schematic diagram illustrating release of a TRP group configuration in accordance with aspects of the present disclosure.
[0095] FIG. 16 is a signal flow diagram illustrating signaling between the network and a UE in accordance with aspects of the present disclosure.
[0096] DETAILED DESCRIPTION
[0097] For illustrative purposes, specific example implementations will now be explained in greater detail below in conjunction with the figures.
[0098] The implementations and examples set forth herein represent information sufficient to practice the claimed subject matter and illustrate ways of practicing such subject matter. Upon reading the following description in light of the accompanying figures, those of skill in the art will understand the concepts of the claimed subject matter and will recognize applications of these concepts not particularly addressed herein. It should be understood that these concepts and applications fall within the scope of the disclosure and the accompanying claims.
[0099] Moreover, it will be appreciated that any module, component, or device disclosed herein that executes instructions may include or otherwise have access to a non-transitory computer / processor readable storage medium or media for storage of information, such as computer / processor readable instructions, data structures, program modules, and / or other data. A non-exhaustive list of examples of non-transitory computer / processor readable storage media includes magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, optical disks such as compact disc read-only memory (CD-ROM) , digital video discs or digital versatile discs (i.e. DVDs) , Blu-ray DiscTM, or other optical storage, volatile and non-volatile, removable and non-removable media implemented in any method or technology, random-access memory (RAM) , read-only memory (ROM) , electrically erasable programmable read-only memory (EEPROM) , flash memory or other memory technology. Any such non-transitory computer / processor storage media may be part of a device or accessible or connectable thereto. Computer / processor readable / executable instructions to implement an application or module described herein may be stored or otherwise held by such non-transitory computer / processor readable storage media.
[0100] FIGs. 1, 2, 3, 4, and 5 following below provide context for a network and devices that may be in the network and that may implement aspects of the present disclosure.
[0101] FIG. 1 is a schematic illustration of an example communication system according to an implementation of the present disclosure. There is shown a communication system 100 that includes a radio access network (RAN) 120, one or more communication electronic devices (EDs) 10a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i, 110j (collectively referred to as 110) , a core network 130, a Public Switched Telephone Network (PSTN) 140, the Internet 150, and other networks 160. The RAN 120 may include, but is not limited to, a future generation RAN, or a legacy RAN such as, but not limited to, 5th generation (5G) , 4th generation (4G) , 3rd generation (3G) or 2nd generation (2G) radio access network. The RAN 120 may be, for example, an Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN) , a NextGen RAN (NG RAN) , or some other type of RAN. Examples of RAN 120 based on the evolution of telecommunications standards include, but is not limited to, GSM (Global System for Mobile Communications) and CDMA (Code Division Multiple Access) for 2G, UMTS (Universal Mobile Telecommunications System) based on WCDMA (Wideband Code Division Multiple Access) and CDMA2000 for 3G, LTE (Long-Term Evolution) and WiMAX (Worldwide Interoperability for Microwave Access) for 4G, and NR (New Radio) for 5G. In some implementations, The RAN 120 may use any radio access technology (RAT) in the wireless interface between the one or more EDs 110 and the RAN 120. In some implementations, the term “radio access” may refer to the future generation air interface standards which may include both terrestrial networks (TNs) and non-terrestrial networks (NTNs) . These networks will be described in greater detail below in conjunction with various implementations. The one or more communication EDs 110 (also referred to as “user equipment” ) are configured to connect (e.g., communicatively couple) with each other or to one or more network nodes 170a, 170b (collectively referred to as 170) in the RAN 120. The core network (CN) 130 is a part of the communication system 100 and consists of network nodes (e.g., 170a, 170b) which provide support for the network features and telecommunication services. In some implementations, the CN 130 may be dependent on the RAT used in the communication system 100. In other implementations, the CN 130 may be access-agnostic, i.e., the CN 130 may be independent of the RAT used in the communication system 100. There are different types of CN 130, for different 3GPP system generations. For example, the CN 130 is the Evolved Packet Core (EPC) in 4G, also known as the Evolved Packet System (EPS) . In another example, the CN 130 is the 5G Core (5GC) which was developed as part of the 5G System (5GS) . The CN 130 also enables integration of different 3GPP and non-3GPP access types. In some implementations and referring to FIG. 1, the CN 130 also provides the interface towards external networks that may include the PSTN 140, the Internet 150, and other networks 160 in the communication system 100.
[0102] In general, the communication system 100 facilitates interaction between multiple wireless or wired elements. The communication system 100 may transmit different types of content, such as voice, data, video, and / or text, through different transmission methods such as, but not limited to, broadcast, multicast, groupcast, and unicast. Additionally, the communication system 100 operates by allocating and / or sharing resources, such as carrier spectrum bandwidth, among its constituent elements.
[0103] The communication system 100 may provide a wide range of communication services and applications including, but not limited to, Enhanced Mobile Broadband (eMBB) services, Ultra-Reliable Low-Latency Communication (URLLC) services, Massive Machine Type Communication (mMTC) services, Integrated Sensing And Communication (ISAC) , immersive communication, Ultra-massive Machine-Type Communication (uMTC) , hyper reliable and low-latency communication, ubiquitous connectivity, integrated AI and communication, and other services that can be provided by a future generation communication system. The communication system 100 may provide other services and applications such as, but not limited to, earth monitoring, remote sensing, passive sensing and positioning, navigation and tracking, autonomous delivery and mobility and the like.
[0104] The communication system 100 may include a terrestrial communication system (or network) and / or a non-terrestrial communication system (or network) . The communication system 100 may provide a high degree of availability and robustness through a joint operation of the terrestrial communication system and the non-terrestrial communication system. For example, integrating a non-terrestrial communication system (or components thereof) into a terrestrial communication system can result in a heterogeneous network comprising multiple layers. The heterogeneous network may achieve better overall performance through efficient multi-link joint operation, more flexible functionality sharing, and faster physical layer link switching between terrestrial networks and non-terrestrial networks. The terrestrial communication system and the non-terrestrial communication system could be considered as sub-systems of the communication system 100.
[0105] FIG. 2 illustrates another example communication system 100 according to an implementation of the present disclosure, there is shown the communication system 100 includes EDs 110a, 110b, 110c, 110d (collectively referred to as ED 110) , RANs 120a, 120b, one or more CNs 130, a PSTN 140, the Internet 150, and other networks 160. Additionally, the communication system 100 may also include a non-terrestrial network (NTN) 120c. The RANs 120a and120b may include network nodes 170a and 170b, respectively. Examples of network nodes 107a, 107b include base stations, which can be generally referred to as terrestrial network (TN) devices or terrestrial transmit and receive points (T-TRPs) 170a and 170b (collectively referred to as 170) . In this context, the terms "TRP" and "base station" are used interchangeably unless otherwise specified. For simplicity, this disclosure primarily refers to network nodes as base stations; however, unless explicitly stated otherwise, references to TRP are considered non-limiting and interchangeable. The T-TRPs 170a, 170b may be base stations mounted on a building or tower. In one implementation, the NTN 120c includes a RAN node such as a base station 172, which may be generally referred to as an NTN device, a non-terrestrial node, a non-terrestrial network device, a non-terrestrial base station, or a non-terrestrial transmit and receive point (NT-TRP) 172.
[0106] In some implementations, the NT-TRP 172 is not attached to the ground, for example, as in the case of an airborne base station. An airborne base station may be implemented using communication equipment supported or carried by a flying device. For example, a flying device may include, but is not limited to, an airborne platform (such as a blimp or an airship) , balloon, drone (such as quadcopter) , and other types of aerial vehicles. In some implementations, an airborne base station may be supported or carried by an unmanned aerial system (UAS) or an unmanned aerial vehicle (UAV) , such as a drone. An airborne base station may be a moveable or mobile base station that can be flexibly deployed in different locations to meet network demand. A satellite base station is another example of a non-terrestrial base station. A satellite base station may be implemented using communication equipment supported or carried by a satellite. A satellite base station may also be referred to as an orbiting base station. High altitude platforms are yet another example of non-terrestrial base stations, including international mobile telecommunication base stations.
[0107] As referred to herein, and unless specified otherwise, a “TRP” may also refer to a T-TRP or an NT-TRP, a “T-TRP” may also refer to a “TN TRP” , and an “NT-TRP” may also refer to an “NTN TRP” . The NTN 120c may be considered a RAN, sharing operational aspects with RANs 120a, 120b. The NTN 120c may include at least one NTN device and at least one corresponding terrestrial network device. The at least one NTN device may function as a transport layer device and the at least one corresponding terrestrial network device may function as a RAN node, communicating with the ED 110 via the NTN device. Additionally, there may be an NTN gateway on the ground (referred to as a terrestrial network device) that also functions as a transport layer device facilitating communication with both the NTN device and the RAN node. The RAN node may communicate with the ED 110 via the NTN device and the NTN gateway. In some implementations, the NTN gateway and the RAN node may be located within the same device.
[0108] A base station 170 (also referred to as a TRP as stated above) is a network element within a radio access network responsible for radio transmission and reception in one or more cells to or from the ED (such as auser equipment (UE) ) . In different implementations, the base station 170 may also be known as a base transceiver station (BTS) , a radio base station, a network node, a network device, a device on the network side, a transmit / receive node, a Node B, an evolved NodeB (eNodeB or eNB) , a Home eNodeB, a next Generation NodeB (gNB) , a transmission point (TP) , a site controller, an access point (AP) , a wireless router, a relay station, a terrestrial node, a terrestrial network device, a terrestrial base station, a non-terrestrial node, a non-terrestrial network device, a non-terrestrial base station, and a positioning node, among other possibilities. The base station 170 may be a macro base station (BS) , a pico BS, a relay node, a donor node, or combinations thereof. When the base station 170 performs (or is configured to perform) a method described herein, it may be interpreted as the base station itself, one or more modules (or units) in the base station, a circuit or chip, or a combination thereof, performing the method. For example, the circuit or chip may include a modem chip, also referred to as a baseband chip, a system on chip (SoC) including a modem core, system in package (SIP) ) , and the like, and may be responsible for one or more communication functions within the base station.
[0109] The EDs 110a-110d and TRPs 170a-170b, 172 are examples of communication equipment configured to implement some or all of the operations and / or implementations described herein. The T-TRP 170a forms part of the RAN 120a, which may include other TRPs, and / or other devices. Also, the TRP 170b forms part of the RAN 120b, which may include other TRPs, and / or devices. Each TRP 170a, 170b may transmit and / or receive wireless signals within a particular geographic region or area, sometimes referred to as a “cell” or a “coverage area” . The TRPs 170a-170b may be responsible for allocating and / or configuring resources and transmission and / or reception in a set of cell (s) . A cell is a radio network object that can be uniquely identified by a cell identification that is broadcasted over a geographical region or area from base stations associated with the cell. A cell can work in either FDD or TDD mode. A cell may be further divided into cell sectors, and a base station 170a-170b may, for example, employ one or more transceivers to provide services to one or more sectors. Some implementations, may include pico or femto cells if supported by the radio access technology. In some implementations, one or more transceivers could be used for each cell, such as with Multiple-Input Multiple-Output (MIMO) technology. The number of RANs 120a-120b shown is merely an example. Any number of RANs may be contemplated when designing the communication system 100.
[0110] A base station may be a single element, as shown in the figures, or multiple elements distributed throughout the corresponding RAN, or otherwise configured. In some implementations, a plurality of RAN nodes coordinate to assist the ED 110 in implementing radio access, and different RAN nodes separately implement and handle different functions of the base station. For example, the RAN node may be a central unit (CU) , a distributed unit (DU) , a CU-control plane (CP) , a CU-user plane (UP) , or a radio unit (RU) etc. The CU and the DU may be separately deployed, or included within the same element (i.e., a baseband unit (BBU) ) . The RU may be included in a radio frequency device or a radio frequency unit (i.e., a remote radio unit (RRU) , an active antenna unit (AAU) , or a remote radio head (RRH) ) . In different systems, the CU (or the CU-CP and the CU-UP) , the DU, or the RU may be known by different names, but their functions are understood by person skilled in the art. For example, in an open radio access network (ORAN) system, a CU may be referred to as an open CU (O-CU) , a DU may be referred to as an open DU (O-DU) , and a CU-CP may be referred to as an open CU-CP (O-CU-CP) . The CU-UP may also be referred to as an open CU-UP (O-CU-UP) , and the RU may also be referred to as an open RU (O-RU) . Any one of the CU (or the CU-CP, the CU-UP) , the DU, and the RU may be implemented using a software module, a hardware module, or a combination of a software module and a hardware module.
[0111] Furthermore, communication between different devices / apparatuses in various implementations of this disclosure may refer to direct communication (that is, without the need of forwarding by another device / apparatus) , or may refer to communication (s) between different devices / apparatuses via another device / apparatus (that is, requiring forwarding by another device / apparatus) . Alternatively, such communication (s) may involve one functional unit inside a device / apparatus using another functional unit within the device / apparatus to communicate with another device / apparatus. In other words, phrases such as "sending (or transmitting) information to... (an ED or a base station) " in this disclosure may be understood as a destination endpoint of the information being an ED or a base station, including, sending / transmitting information directly or indirectly to an ED or a base station. Similarly, phrases like "receiving information from... (an ED or a base station) " may be understood as a source endpoint of the information being an ED or a base station, including directly or indirectly receiving information from an ED or a base station. Between the source endpointthat sends the information and the destination endpoint, necessary processing such as, but not limited to, format conversion, digital-to-analog conversion, amplification, and filtering may be performed on the information. However, the destination endpoint may understand valid information from the source endpoint. A similar understanding applies to other descriptions in this disclosure without reiterating details already described. In the present disclosure, the terms "send" and "transmit" may be used interchangeably in different implementations of this disclosure.
[0112] The ED 110 is used to connect people, objects, machines, and other entities. The ED 110 may be widely used in various scenarios including, but not limited to, cellular communications, device-to-device (D2D) , vehicle to everything (V2X) , peer-to-peer (P2P) , machine-to-machine (M2M) , MTC, internet of things (IoT) , virtual reality (VR) , augmented reality (AR) , mixed reality (MR) , metaverse, digital twin, industrial control, self-driving, remote medical, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, and autonomous delivery and mobility.
[0113] Each ED 110 represents any suitable end user device for wireless operation and may include such devices (or may be referred to as, but not limited to) a user equipment (UE) or a user device or a terminal device, a wireless transmit / receive unit (WTRU) , a mobile station, a fixed or mobile subscriber unit, a cellular telephone, a station (STA) , an MTC device, a personal digital assistant (PDA) , a smartphone, a laptop, a computer, a tablet, a wireless sensor, a consumer electronics device, a smart book, a vehicle, a car, a truck, a bus, a train, or an IoT device, wearable devices (such as a watch, a pair of glasses, head mounted equipment, etc. ) , an industrial device, or an apparatus (such as a module, modem, or chip) in the forgoing devices, among other possibilities. Future generation EDs 110 may be referred to by other terms. When an ED 110 performs (or is configured to perform) a method described herein, it may be interpreted as the ED itself, one or more modules (or units) in the ED, a circuit or chip, or a combination thereof, performing the method. For example, the circuit or chip may include a modem chip, also referred to as a baseband chip, a system on chip (SoC) including a modem core, or system in package (SIP) , and the like, and may be responsible for one or more communication functions in the ED.
[0114] Each ED 110 connected to TRPs 170a-170b, and / or TRPs 172 can be dynamically or semi-statically turned-on (i.e., established, activated, or enabled) , turned-off (i.e., released, deactivated, or disabled) and / or configured in response to one or more of: connection availability and connection necessity.
[0115] Any ED 110 may be alternatively or additionally configured to interface, access, or communicate with any of the TRPs 170a, 170b and 172, the Internet 150, the CN 130, the PSTN 140, the other networks 160, or any combination thereof. In some examples, the ED 110a may communicate an uplink (UL) and / or downlink (DL) transmission over a terrestrial air interface 190a with station-TRP 170a. In some examples, the EDs 110a, 110b, 110c, and 110d may also communicate directly with one another via one or more sidelink (SL) air interfaces 190b. In some examples, the EDs 110a, 110d may communicate using an UL and / or DL transmission over a non-terrestrial air interface 190c with NT-TRP 172.
[0116] An air interface (such as, for example, 190a, 190b, 190c) generally includes a number of components and associated parameters that collectively specify how a transmission is to be sent and / or received over a wireless communications link between two or more communicating devices such as EDs and base station (s) . For example, an air interface may include one or more components defining the waveform (s) , frame structure (s) , multiple access scheme (s) , protocol (s) , coding scheme (s) and / or modulation scheme (s) for conveying information (such as, data) over a wireless communications link. The air interfaces 190a and 190b may use similar communication technology, that may include any suitable radio access technology.
[0117] The non-terrestrial air interface 190c can enable communication between the EDs 110a, 110d and one or more NT-TRPs 172 via a wireless link or simply a link. For some examples, the link is a dedicated connection for unicast transmission, a connection for broadcast transmission, or a connection between a group of EDs 110 and one or more NT-TRPs 172 for multicast transmission.
[0118] The TRPs 170a-170b, 172 may communicate with one another over one or more air interfaces 190e, 190f using wireless communication links (such as radio frequency (RF) , microwave, infrared (IR) , etc. ) or wired communication links. The air interfaces 190e, 190f may utilize any suitable radio access technology, and may be substantially similar to the air interfaces 190a, 190c over which the EDs 110a-110d communicate with one or more of the TRP 170a-170b, 172 or they may be substantially different. For example, the communication system 100 may implement one or more channel access methods, such as Time Division Multiple Access (TDMA) , Frequency Division Multiple Access (FDMA) , Code Division Multiple Access (CDMA) , Single Carrier Frequency Division Multiple Access (SC-FDMA) , Low Density Signature Multicarrier Code Division Multiple Access (LDS-MC-CDMA) , Non-Orthogonal Multiple Access (NOMA) , Pattern Division Multiple Access (PDMA) , Lattice Partition Multiple Access (LPMA) , Resource Spread Multiple Access (RSMA) , and Sparse Code Multiple Access (SCMA) .
[0119] The RANs 120a and 120b are in communication with the CN 130 to provide the EDs 110a 110b, and 110c with various services such as voice, data, multimedia, and other services. The RANs 120a and 120b and / or the CN 130 may be in direct or indirect communication with one or more other RANs (not shown) , which may or may not be directly served by the CN 130, and may employ different radio access technologies from RAN 120a and / or RAN 120b. The CN 130 may also serve as a gateway access between (i) the RANs 120a and 120b and / or the EDs 110a 110b, and 110c, and (ii) other networks (such as the PSTN 140, the Internet 150, and the other networks 160) . In addition, some or all of the EDs 110a 110b, and 110c may include functionality for communicating with different wireless networks over different wireless links using different wireless technologies and / or protocols. For example, the EDs 110a 110b, and 110c communicate using different cellular communications protocols, such as, but not limited to, a Global System for Mobile Communications (GSM) protocol, a code-division multiple access (CDMA) network protocol, a Push-to-Talk (PTT) protocol, a PTT over Cellular (POC) protocol, a Universal Mobile Telecommunications System (UMTS) protocol, a 3GPP Long Term Evolution (LTE) protocol, a fifth generation (5G) protocol, a New Radio (NR) protocol, and the like. Instead of wireless communication (or in addition thereto) , the EDs 110a 110b, and 110c may communicate using wired communication channels to a service provider or switch (not shown) , and / or to the Internet 150. The PSTN 140 may include circuit switched telephone networks for providing plain old telephone service (POTS) . The Internet 150 may include a network of computers and subnets (intranets) or both, and incorporate protocols, such as internet protocol (IP) , transmission control protocol (TCP) , user datagram protocol (UDP) . EDs 110a 110b, and 110c may be multimode devices capable of operation according to multiple radio access technologies, and may incorporate one or multiple transceivers necessary to support such.
[0120] In addition, the communication system 100 may comprise a sensing agent (not shown) to manage the sensed data from ED 110 and / or any one of TRPs 170a, 170b, 172. In one implementation, the sensing agent may be part of any one of TRPs 170a, 170b, 172. In another implementation, the sensing agent is a separate node that can communicate with the CN 130 and / or the RAN 120 (such as any one of TRPs 170a, 170b, 172) .
[0121] FIG. 3 is a schematic illustration showing an apparatus 310 wirelessly communicating with another apparatus 320 within a communication system (e.g., the communication system 100) according to an implementation of the present disclosure. The apparatus 310 may be anelectronic device (such as ED 110) . The apparatus 320 may be a network node (e.g., the network node 170) such as T-TRP 170 or an NT-TRP 172. Although only one apparatus 310, and one apparatus 320 are shown in the figure, the number of apparatus 310 and / or number of apparatus 320 can vary, potentially including one or more of each. For example, a single ED 110 may be served by a single T-TRP 170 (or a single NT-TRP 172) , or by multiple T-TRPs 170 (or multiple NT-TRPs 172) . Similarly, a single ED 110 may be served by one or more T-TRPs 170 and one or more NT-TRPs 172. Similarly, a single T-TRP 170 (or a single NT-TRP 172) may serve one or more EDs 110.
[0122] The apparatus 310 may include one or more processors 210. For clarity and to avoid overcrowding the illustration, only a single processor 210 is illustrated. The apparatus 310 may further include a transmitter 201 and a receiver 203 coupled to one or more antennas 204. For clarity, only a singleantenna 204 is illustrated. One, some, or all of the antennas 204 may alternatively be panels. In some implementations, the transmitter 201 and the receiver 203 are separate from each other. In other implementations, the transmitter 201 and the receiver 203 may be integrated into a single unit, for example, as a transceiver. The transceiver is configured to modulate data or other content for transmission by the one or more antennas 204 or a network interface controller (NIC) . The transceiver may also be configured to demodulate data or other content received by the one or more antennas 204. A transceiver may include any suitable structure for generating signals for wireless or wired transmission and / or for processing signals received through wireless or wired communication. Each antenna 204 includes any suitable structure for transmitting and / or receiving wireless or wired signals. The apparatus 310 may include a memory 208. In some implementations, the apparatus 310 may include multiple memories 208. Only a single transmitter 201, receiver 203, processor 210, memory 208, and antenna 204 is illustrated for simplicity, but the apparatus 310 may include one or more other components. In some implementations of the present disclosure, the transceiver (or transmitter 201 and / or receiver 203) may be viewed as an interface circuit.
[0123] The memory 208 is configured to store instructions used to perform operations described herein. The memory 208 may also be configured to store data that is used, generated, or collected by the apparatus 310. For example, the memory 208 can store software instructions or modules configured to implement some or all of the functionalities and / or operations described herein and that which are executed by the one or more processors 210.
[0124] The apparatus 310 may further include one or more input / output devices (not shown) or interfaces. The input / output devices or interfaces facilitate interaction with a user or other devices in the network. Each input / output device or interface includes suitable components for facilitating transmission of information to a user and reception of information from a user, and for various network interface communications. Such components may include, but are not limited to, a speaker, microphone, keypad, keyboard, display, touch screen, and the like.
[0125] The processor 210 may be configured to perform (or control the apparatus 310 to perform) operations (or methods) described herein as being performed by the apparatus 310. For example, the processor 210 performs or controls the apparatus 310 to perform the operations of: a) receiving one or more transport blocks (TBs) , b) using a resource for decoding at least one of the received TBs, c) releasing the resource for decoding another of the received TBs, and / or d) receiving configuration information configuring a resource. Specifically, the operations may include tasks related to: preparing a transmission for UL transmission to the apparatus 320, processing DL transmissions received from the apparatus 320, and handling SL transmission to and from another apparatus 310. Processing operations related to preparing a transmission for UL transmission may include operations such as, but not limited to, encoding, modulating, transmit beamforming, and generating symbols for transmission. Processing operations related to processing DL transmissions may include operations such as, but not limited to, receive beamforming, demodulating and decoding received symbols. Processing operations related to processing SL transmissions may include operations such as, but not limited to, transmit / receive beamforming, modulating / demodulating and encoding / decoding symbols. Depending upon the implementation, a DL transmission may be received by the receiver 203, possibly using receive beamforming, and the processor 210 may extract signaling from the DL transmission (such as by detecting and / or decoding the signaling) . An example of signaling may be a reference signal transmitted by the apparatus 320. In some implementations, the processor 210 implements the transmit beamforming and / or the receive beamforming based on the indication of beam direction, such as beam angle information (BAI) , received from the apparatus 320. In some implementations, the processor 210 may be configured to perform operations relating to network access (such as initial access) and / or downlink synchronization, which includes operations for detecting a synchronization sequence, decoding and obtaining the system information, and the like. In some implementations, the processor 210 may perform channel estimation, such as using a reference signal received from the apparatus 320.
[0126] Although not illustrated, in some implementations, the processor 210 may either be a part of the transmitter 201 or a part of the receiver 203 or a part of both the transmitter 201 and the receiver 203. Although not illustrated, in some implementations, the memory 208 may be a part of the processor 210.
[0127] The processor 210, along with the processing components of the transmitter 201 and the receiver 203 may each be implemented by one or more processors that may the same or different. These processors are configured to execute instructions stored in a memory (such as in the memory 208) .
[0128] The apparatus 320 includes one or more processors 260 (only one processor 260 is illustrated) . The apparatus 320 may further include one or more transmitters 252 and one or more receivers 254 coupled to one or more antennas 256. Only a single antenna 256 is illustrated to avoid clutter in the illustration. One, some, or all of the antennas 256 may alternatively be panels. In some implementations, the transmitter 252 and the receiver 254 are separate from each other. In other implementations, the transmitter 252 and the receiver 254 may be integrated into a single unit such as, for example, as a transceiver. The apparatus 320 may further include a memory 258. In some implementations, the apparatus 320 may include multiple memories 258. The apparatus 320 may further include a scheduler 253. Only a single transmitter 252, receiver 254, processor 260, memory 258, antenna 256 and scheduler 253 are illustrated for simplicity, however the apparatus 320 may include one or more other components. In the present disclosure, in some implementations, the transceiver (or transmitter 252 and / or receiver254) may be viewed as an interface circuit.
[0129] In some implementations, various components of the apparatus 320 may be distributed. For example, some of the modules of the apparatus 320 may be located remotely from the equipment housing the antennas 256 for the apparatus 320 (and therefore also can be viewed as one or more nodes) . These modules, which can be considered as one or more nodes, may be coupled to the equipment that houses the antennas 256 over a communication link (not shown) , sometimes referred to as front haul, such as the Common Public Radio Interface (CPRI) . Therefore, in some implementations, the term apparatus 320 may also refer to network-side nodes that perform processing operations such as, but not limited to, determining the location of the apparatus 310, resource allocation (scheduling) , message generation, and encoding / decoding, and that which are not necessarily part of the equipment that houses the antennas 256 of the apparatus 320. The nodes may also be coupled to other apparatuses 320. In some implementations, the apparatus 320 may actually be a plurality of nodes that are operating together to serve the apparatus 310, such as through the use of coordinated multipoint transmissions, or through the use of ORAN system as described above in the disclosure.
[0130] The processor 260 is configured to perform operations including those related to: preparing a transmission for DL transmission to the apparatus 310, processing an UL transmission received from the apparatus 310, preparing a transmission for backhaul transmission to another apparatus 320, and processing a transmission received over backhaul from another apparatus 320. Processing operations related to preparing a transmission for DL or backhaul transmission may include operations such as, but not limited to, encoding, modulating, precoding (such as MIMO precoding) , transmit beamforming, and generating symbols for transmission. Processing operations related to processing received transmissions in the UL or over backhaul may include operations such as, but not limited to, receive beamforming, demodulating received symbols, and decoding received symbols. The processor 260 may also be configured to perform operations relating to network access (such as initial access) and / or DL synchronization, such as generating the content of synchronization signal blocks (SSBs) , generating the system information, and the like. In some implementations, the processor 260 is further configured to generate an indication of beam direction, such as BAI, which may be scheduled for transmission by the scheduler 253 which will be described below. In some implementations, the processor 260 implements the transmit beamforming and / or receive beamforming based on beam direction information (such as BAI) received from another apparatus 320. The processor 260 is configured to perform other network side processing operations described herein, such as, but not limited to, determining the location of the apparatus 310, determining where to deploy another apparatus 320, and the like. In some implementations, the processor 260 may generate signaling data, to configure one or more parameters of the apparatus 310 and / or one or more parameters of another apparatus 320. Any signaling data generated by the processor 260 is sent by the transmitter 252. In some implementations, the apparatus 320 implements physical layer processing. In some implementations, the apparatus 320 may perform higher layer functions such as those at the Medium Access Control (MAC) or Radio Link Control (RLC) layers in addition to physical layer processing. In the apparatus 320, the scheduler 253 may be coupled to the processor 260 or integrated within the processor 260. In some implementations, the scheduler 253 may be integrated within the apparatus 320 or may be operated separately from the apparatus 320. The scheduler 253 may schedule UL, DL, SL, and / or backhaul transmissions, including issuing scheduling grants and / or configuring scheduling-free (such as “configured grant” ) resources.
[0131] The apparatus 320 may further include a memory 258 that is configured to store instructions for performing the operations described herein. The memory 258 may also store data that is used, generated, or collected by the apparatus 320. For example, the memory 258 can store software instructions or modules configured to implement some or all of the functionalities and / or implementations described herein and that which are executed by the processor 260.
[0132] Although not illustrated, the processor 260 may be implemented as part of the transmitter 252 and / or a part of the receiver 254. Although not illustrated, in some implementations, the processor 260 may implement the scheduler 253 andthe memory 258 may be implemented as part of the processor 260.
[0133] The processor 260, the scheduler 253, the processing components of the transmitter 252, and the processing components of the receiver 254 may each be implemented by the same or different processors that are configured to execute instructions stored in a memory, such as in the memory 258.
[0134] The apparatus 320 and / or the apparatus 310 may include other components, not shown or described herein for the sake of clarity.
[0135] Note that the term “signaling” , as used herein, may alternatively be referred to as control signaling, control message, control information, or message for simplicity. Signaling between a base station (such as the TRP 170a. 170b, 172) and a UE or sensing device (such as ED 110) , or signaling between a different UE or sensing device (such as between ED 110a and ED 110b) may be carried in physical layer signaling (also called as dynamic signaling) , which is transmitted in a physical layer control channel. For DL, the physical layer signaling may be known as downlink control information (DCI) which is transmitted in a physical downlink control channel (PDCCH) . For UL, the physical layer signaling may be known as uplink control information (UCI) which is transmitted in a physical uplink control channel (PUCCH) . For SL, signaling between different UEs or sensing devices (such as between ED 110a and ED 110b) may be known as SL control information (SCI) which is transmitted in a physical sidelink control channel (PSCCH) . Signaling may be carried in a higher layer (such as higher than physical layer) signaling, which is transmitted in a physical layer data channel, such as in a physical downlink shared channel (PDSCH) for downlink signaling, in a physical uplink shared channel (PUSCH) for uplink signaling, and in a physical sidelink shared channel (PSSCH) for SL signaling. Higher layer signaling may also be called static signaling, or semi-static signaling. The higher layer signaling may include radio resource control (RRC) protocol signaling or media access control -control element (MAC-CE) signaling. Signaling may be included in a combination of physical layer signaling and higher layer signaling.
[0136] It should be noted that in the present disclosure, “information” , when different from “message” , may be carried within a single message, or may be carried in multiple separate messages.
[0137] FIG. 4 illustrates an example apparatus 410 according to an implementation of the present disclosure. The apparatus 410 may be a communication device or an apparatus implemented in a communication device such as the ED 110 or the TRPs 170a, 170b, 172. For example, the apparatus 410 implemented in an ED may be an integrated circuit, which in some instances may be referred to as a chip, a modem, a modem chip, a baseband chip, or a baseband processor. In some implementations, one or more integrated circuits can be packaged into a system-on-chip, a system-in-package, or a multi-chip module. The apparatus 410 can include one or more integrated circuits and other discrete components. In some implementations, the apparatus 410 may be a module within the ED 110, or within the apparatus 310. In some implementations, the apparatus 410 may be a module within one of the TRPs 170a, 170b, 172, or the apparatus 320.
[0138] In an example, the apparatus 410 may include one or more processors 411, and an interface circuit 412. The apparatus 410 may further include a memory 413. The one or more processors 411 are configured to process signals and execute one or more communication protocols. The memory 413 is configured to store at least a part of corresponding computer program instructions and / or data. In an example, the one or more processors 411 execute the computer program instructions stored in the memory 413 to implement related operations (for example, inputting, outputting, receiving, and transmitting) in the method implementations disclosed herein. In some implementations, the memory 413 being configured to store the corresponding computer program instructions and / or data may mean that the memory 413 is configured to store all of the corresponding computer program instructions and / or data for execution by the one or more processors 411. In some implementations, the memory 413 being configured to store the corresponding computer program instructions and / or data may mean that the memory 413 is configured to store a part of the corresponding computer program instructions and / or data. For example, the part of the corresponding computer program instructions and / or data may include computer program instructions and / or data that need to be currently executed by the one or more processors 411. Thus, the memory 413 may store different parts of computer program instructions and / or data for a plurality of times for the one or more processors 411 to perform related operations in the method implementations disclosed herein. As a communication interface, the interface circuit 412 is configured to implement communication with another component. For example, the interface circuit 412 may communicate a signal with other apparatus / system such as a radio frequency processing apparatus, or processor system. The communication includes transmitting signal (or data, information) to another component or device, or receives signal from another component or device. “transmitting” includes outputting the signal to a component or device that is directly or indirectly coupled to the interface circuit (transmitting unit) . “receiving” includes inputting or obtaining a signal from a component or device that is directly or indirectly couped to the interface circuit (receiving unit) . Optionally, to reduce a load of the one or more processors, a baseband signal processing circuit 414 may be also disposed to implement processing of at least a part of baseband signals, including signal demodulation, modulation, encoding, decoding, or the like.
[0139] The apparatus 410 may be the processor 210 (or 260) within the apparatus 310 (or 320) , in some scenarios, or may be included within the processor 210 (or 260) within the apparatus 310 (or 320) in some scenarios. The apparatus 410 may be a baseband chip or may include a baseband chip. In some implementations, the apparatus 410 may be independently packaged into a chip. In some implementations, the apparatus 310 (or 320) includes different types of chips. The apparatus 410 may be packaged into a processor chip (for example, an SoC chip or an SIP chip) with the different types of chips. In some implementations, the apparatus 410 may be packaged into a chip with some or all of circuits of a radio frequency processing system that may further be included in the apparatus 310 (or 320) .
[0140] FIG. 5 illustrates example apparatus 510 according to an implemenation of the present disclosure. The apparatus 510 may include corresponding modules or units configured to implement methods and / or implementations described herein. In some implementations, the apparatus 510 includes a processing unit 512 and a communication unit 513. Optionally, the apparatus 510 may further include a storage unit 511 configured to store apparatus program code (or instructions) and / or data.
[0141] The apparatus 510 may be an ED side apparatus, for example, an ED or a module in an ED, or a circuit or a chip responsible for a communication function in an ED. In some implementations, apparatus 510 may be the apparatus 310. The processing unit 512 may be the processor 210. The communication unit 513 may comprise a receiving unit and / or a transmitting unit. The receiving unit and / or the transmitting unit may be the transmitter 201 and / or the receiver 203 respectively. The storage unit 511 may be the memory 208.
[0142] The apparatus 510 may be a base station side apparatus, for example, a base station or a module in a base station, or a circuit or a chip responsible for a communication function in a base station. In some implementations, apparatus 510 may be apparatus 320. The processing unit 512 may be the processor 260 (the scheduler 253 may also be included) . The communication unit 513 may comprise a receiving unit and / or a transmitting unit. The receiving unit and / or the transmitting unit may be the transmitter 252 and / or the receiver 254 respectively. The storage unit 511 may be the memory 258.
[0143] In some implementations, when the apparatus 510 is an ED 110 or a module in an ED 110, a function of the apparatus 510 may be implemented by one or more processors. Specifically, the processor may include a modem chip, or a SoC chip or an SIP chip that includes a modem core. A function of the communication unit 513 may be implemented by a transceiver circuit.
[0144] In some implementations, when the apparatus 510 is a circuit or a chip that is responsible for a communication function in an ED 110, -such as a modem chip, a SoC chip or an SIP chip that includes a modem core -a function of the processing unit 512 may be implemented by a circuit system within the chip which includes one or more processors. A function of the communication unit 513 may be implemented by an interface circuit or a data transceiver circuit on the chip.
[0145] It may be understood that the units in the apparatus 510 may be logical or functional. Each function may correspond to one functional unit, or two or more functions may be integrated into a single functional unit. In actual implementation, all or some of the units may be integrated into a single physical entity, or may be distributed across different physical entities. In addition, the functional units may be implemented in the form of hardware, software, or a combination of hardware and software. Whether a function is implemented in the form of hardware or software depends on particular applications and design constraint conditions of the technical solutions. A person skilled in the art may use different methods to implement the described functions for specific applications, but it should not be considered that the implementation goes beyond the scope of this disclosure.
[0146] In an example, a functional unit in any one of the apparatuses may be configured as one or more integrated circuits for implementing the methods disclosed herein, for example, as one or more application-specific integrated circuits (application-specific integrated circuits, ASICs) , one or more central processing units (CPUs) , one or more microprocessors or microprocessor units (MPUs) , one or more microcontrollers or microcontroller units (MCUs) , one or more digital signal processors (DSPs) , one or more field programmable gate arrays (FPGAs) , or a combination of these.
[0147] In an example, the storage unit 511 may include a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, and / or a register.
[0148] A processor may be referred to as a processor system, an application processor, a baseband processor, a processor circuit, or a processor core. The processor may include one or a combination of one or more central processing units (CPUs) , one or more digital signal processors (DSPs) , one or more microprocessors (microprocessor units, MPUs) , one or more microcontrollers (microcontroller units, MCUs) , one or more graphics processing units (GPUs) , one or more field programmable gate arrays (FPGAs) , one or more artificial intelligence processors (AI processors) , or one or more neural network processing units (NPUs) .
[0149] Memory or a storage unit may include one or more of the following storage media: a random access memory (RAM) , a static random access memory (static RAM, SRAM) , a dynamic random access memory (dynamic RAM, DRAM) , a phase-change memory (PCM) , a resistive random access memory (resistive RAM, ReRAM) , a magnetoresistive random access memory (magnetoresistive RAM, MRAM) , a ferroelectric random access memory (ferroelectric RAM, FRAM) , a cache, a register, a read-only memory (ROM) , a flash memory (flash memory) , an erasable programmable read-only memory (erasable programmable ROM, EPROM) , a hard disk, and the like. In an example, computer program instructions used to execute implementations may be stored in a non-volatile memory, for example, at least a part of a memory or storage unit (for example, one or more of a ROM, a flash memory, an EPROM, or a hard disk) . When a terminal runs, a part or all of corresponding computer program instructions may be loaded to a memory that has a higher transmission speed with the processor, for example, at least a part of a memory or a storage unit (for example, one or more of a RAM, an SRAM, a DRAM, a PCM, a RERAM, an MRAM, a FRAM, a cache, or a register) , so that the processor executes the computer program instructions to perform the steps in the method implementations disclosed herein.
[0150] In a wireless system, a UE may get access to the network by searching for a downlink (DL) synchronization channel. After the UE is synchronized on downlink with a transmission point (TP) , which can also be referred to as a TRP, the UE may get essential system information from one or both of Master Information Block (MIB) and System Information Block (SIB) . The UE could also get synchronized with the network on uplink by going through a random access channel (RACH) procedure. After synchronization on both uplink and downlink are completed, the UE may set up connection and start to communicate with the network.
[0151] Upon the UE attaching to the network, the network may define a set of potential serving TRPs, or more generally a set of potential serving network nodes, for the UE. The set of potential serving TRPs, or set of potential serving network nodes, may be referred to as a cooperation set, a TRP cooperation set, or a network node cooperation set. The determination of the cooperation set may be based, for instance, on asynchronization signal blocks (SSB) beam used for initial access, or on UE-assisted information (e.g., through measurement reports provided by the UE) . In some examples, upon performing the initial access procedure, the network may configure the UE to measure and feedback the measurement results for a set of reference signals (e.g., SSB, channel state information-reference signals (CSI-RS) ) transmitted by one or more neighboring TRPs. The UE may be configured to send periodic, semi-static, or aperiodic measurement reports. For instance, aperiodic reports may be sent upon an event trigger (e.g., a measured value greater than a configured threshold) . The network may use the measurement reports sent by a UE to determine a UE specific TRP cooperation set. The UE specific TRP cooperation set may be a set of TRPs that are particularly determined for use by the UE for communication between one or more of the TRPs in the set and the UE. In some examples, the cooperation set may be determined based on long-term statistics of link qualities between the UE and the TRPs in the set, i.e., link quality based on the long-term channel information. That is to say that if a link between the UE and another TRP not in the cooperation set became good for a short time (eg., due to signal reflecting from a passing car) it doesn’ t mean this TRP should be added to the set. The network may also combine measurement reports sent by multiple UEs to determine a long term UE specific TRP cooperation set. Also, the network may use measurement reports sent by one or more UEs to update some of the TRP configurations described herein. Upon determining the UE-specific TRP cooperation set, the network may dynamically schedule a single TRP or multiple TRPs among the long term cooperation set for data transmission with the UE.
[0152] Once the network determines the cooperation set, the network may send to the UE a TRP Configuration for the TRPs in the cooperation set. An example of how this may be performed may be via a message to add configuration information for a TRP. An example of the message may be “TRP Configuration Add” The TRP Configuration may include, but is not limited to, one or more of the following parameters: Configuration identifier (ID) ; TRP-ID; RF map; reference signal measurement configuration; reference signal reporting configuration; time-alignment configuration; QCL / TCI configuration; TRP configuration update request trigger configuration; and TRP switching request trigger configuration.
[0153] In one example, each TRP Configuration is associated with a TRP. The association of more than one TRP Configuration with a TRP is not precluded. The association of a TRP Configuration with more than one TRP is also not precluded. In another example, there is a one-to-one mapping between a TRP Configuration and a TRP. Other mappings are not precluded. Therefore, the naming “TRP Configuration” is to be understood as an example, and is used herein for consistency. Other naming is also not precluded. Likewise, some of the signaling messages provided herein use the TRP Configuration terminology; other naming for these messages are also not precluded.
[0154] In a yet another example, a TRP Configuration may be used to refer to a set of configuration elements (e.g., radio environment information parameter set, which may be referred to as a RF map, reference signal measurement and reporting configuration, QCL / TCI configuration, etc. ) . In some examples, the TRP Configuration may include the configuration of each configuration elements. In other examples, the TRP Configuration may include reference to existing configuration elements. For instance, the reference signal is configured using available reference signal configuration framework, and the TRP Configuration only includes a reference to the reference signal configuration (e.g., reference signal configuration ID) . Other examples may consider a combination of explicit configuration and reference to configuration elements.
[0155] In some examples, the TRP configuration may only include one element (e.g., the RF map, or reference signal configuration) . In such case, the TRP Configuration may be equivalent to the element configuration. For instance, instead of having a TRP Configuration that includes an RF map, the TRP Configuration may be understood as the RF map. In another example, instead of having a TRP Configuration that includes a reference signal configuration, the TRP Configuration is to be understood as the reference signal configuration. More generally, a TRP configuration may be regarded as either a container with one or more configuration elements (or with references to such configurations) or directly as an element configuration. In such cases, the configuration may not be called “TRP Configuration” .
[0156] In some examples, the TRP Configuration may be identified by a TRP ID. In other examples, the TRP Configuration may be identified by a configuration ID. For example, if the network does not specify the TRP ID, or if multiple configurations are associated with the same TRP. In yet some other examples, the TRP Configuration may not have an associated ID. It is possible that the TRP configuration may by identified by the configuration ID of one of the TRP configuration elements (e.g., when the TRP Configuration refers to an RF map, the configuration may be identified by the RF map ID) .
[0157] The term RF map, or more generally a radio environment information parameter set, is used to refer to an entity that can provide one or more transmission / reception parameters, measurement estimates, one or more reference signal parameters; one or more estimates of the wireless channel; and one or more estimates of the wireless channel multipath components, etc. based on UE spatial information.
[0158] Examples of transmission or reception parameters may include, but are not limited to, one or more of: beamforming information; time alignment information; quasi co-location / transmission configuration indication (QCL / TCI) configuration; channel quality indicator (CQI) ; precoding matrix indicator (PMI) ; rank indicator (RI) ; and modulation and coding scheme (MCS) .
[0159] Examples of the one or more estimates of the wireless channel multipath components include, but are not limited to: angles of arrival; angles of departure; path delay; path power; cross polarization ratio (XPR) ; and initial phases.
[0160] Examples of UE spatial information may include, but is not limited to, UE location, UE GPS coordinates, UE orientation, UE rotation, satellite imagery, etc. In some examples, the RF map maybe provided in the format of a 2D or 3D representation of the environment. In other examples, the RF map may be provided in the format of a look-up table or a database. Yet, in another example, the RF map may be provided in the format of an inference model (e.g., a machine learning (ML) or artifical intelligence (AI) model) . Therefore, the term RF map is intended to be defined in a non-limiting way; and other names may also be used to refer to such an entity. Some examples of alternative names may include map, table, RF table, database, RF database, environment reconstruction, environment model, or radio environment information parameter set, as mentioned above.
[0161] In some examples of the RF map, the UE spatial information may be provided with reference to a global coordinate system. In other examples, the UE spatial information may be provided with reference to a local coordinate system. In yet another example, the UE spatial information may combine elements of global and local coordinate system. In some examples, the UE spatial information may relate to a specific location. In other examples, the UE spatial information may relate to a region (e.g., a grid on a map) . In yet another example, the UE spatial information may comprise a combination of location-specific and region-specific information (e.g., the UE may indicate the region it is located and its orientation) .
[0162] In some examples, the RF map may be provided directly from the network to the UE. In other examples, the RF map may be provided by a reference to manner to obtain the RF map or a location to obtain the RF map (e.g., the network may provide a server address for the UE to download the RF map) .
[0163] In some examples, the UE may be configured to feedback one or more measurement reports and / or transmission parameters (e.g., chanel quality indicator (CQI) , pre-coding matrix indicator (PMI) , rank indicator (RI) , reference signal received power (RSRP) , signal to interference and noise ratio (SINR) , etc. ) . The UE may obtain these feedback quantities by measuring configured reference signals or from the RF map. In one example, the network may provide, through configuration or through an indication in the feedback request, an indication to the UE as to whether the feedback quantities are to be obtained from the reference signal measurement or from the RF map. In another example, the UE may indicate in the feedback message whether the feedback quantities were obtained from the reference signal measurement or from the RF map. In yet another example, the network may be oblivious as to whether the feedback quantities are obtained from the reference signal measurement or from the RF map. For instance, the UE may decide at the UE’s own discretion whether to obtain the feedback quantities from the reference signal measurement or from the RF map without providing any indication to the network.
[0164] As the UE moves and the RF propagation environment evolves, some information in the TRP Configuration may become outdated. In such a case, the network may update the current TRP Configuration of one or more of the configured TRPsby sending a message to modify the TRP configuration. An example may include sending a “TRP Configuration Modify” message. The TRP Configuration Update may be performed in one or more ways. In one example, the TRP Configuration Update may be performed by sending a new TRP Configuration. In another example, the update may be performed by sending a partial configuration. For instance, the partial configuration may include a list or reference signal measurement and reporting configuration to add or remove from the current TRP configuration, or a list of entries to add or remove from the RF map look-up table or database. In yet another example, the network may provide a differential update (e.g., the differential weights of an RF map inference model) . The network may indicate the type of TRP Configuration Update being used. Some examples of indicating the type of TRP Configuration Update being used may include having a bit-field containing an indication in the modify TRP configuration, or a “TRP Configuration Modify” message, or by using different TRP Configuration Modify message formats for each method.
[0165] Alternatively, the UE may also be configured to detect changes in the RF propagation environment, and to request a TRP Configuration Update. In one example, the network may configure the UE with one or more triggers that may initiate a a TRP configuratin update (e.g., as part of the TRP Configuration) . This may be referred to as a “TRP configuration update request trigger” . Upon the triggering of a configured “TRP configuration update request trigger” , the UE may request a TRP Configuration Update by sending a request for a TRP configuration update to the network. Such a request may be referred to as a “TRP Configuration Update Request” . Once the network receives an update request, the network may perform the TRP Configuration Update as described above. Some examples of situations that could be configured to trigger the UE to request a TRP update may include, but are not limited to: the UE cannot detect or decode a configured reference signal; the UE receives a configured reference signal with power below a configured threshold; the UE receives a reference signal with power outside an expected range (for instance, if the RF map model provides a range of expected received power for a configured reference signal) ; and, depending on the UE sensing capabilities, the UE detects changes in the RF propagation environment.
[0166] As the UE moves, the UE may also leave the coverage area of a TRP in the cooperation set and enter the coverage area of one or more TRPs that are not currently configured in the cooperation set. The network can add new TRPs to the cooperation set through a “TRP Configuration Add” message, as described above. The UEmay also remove one or more TRPs from the cooperation set by sending a message to release one or more TRP configurations associated with the one or more TRPs to be removed. An exampe of this may be a “TRP Configuration Release” message. The “TRP Configuration Release” message may include an indication of the TRP Configuration to be removed (e.g., the configuration ID or the TRP ID) .
[0167] In some examples of the present disclosure, the TRP Configuration may be active or inactive. The initial state (either active orinactive) of a TRP Configuration may be determined implicitly or explicitly. Some examples of implicit TRP initial state configuration may comprise using a pre-determined rule. For instance, assuming the TRP Configuration is active (or inactive) when the TRP Configuration is added. Some examples of explicit TRP initial state indication may comprise indicating the TRP Configuration state in the “TRP Configuration Add” message. Such a messagemay use a one-bit indication.
[0168] The network may activate or deactivate a TRP configuration by sending to the UE, respectively, a message to activate or deactivate a TRP configuration. An example may be sending a “TRP Activation” or “TRP Deactivation” message to the UE. In some examples, the TRP activation and deactivation may be performed explicitly. For instance, in a first example, the “TRP Activation” or “TRP Deactivation” messages may include the TRP ID or Configuration ID corresponding to the TRP beingactivated or deactivated, respectively. In a second example, the “TRP Activation” or “TRP Deactivation” messages may comprise a bitmap providingan activation or deactivation indication, respectively, for each TRP in the cooperation set. Yet, in another example, the TRP activation and deactivation may be performed implicitly. For instance, the UE may assume that the N newest TRP Configurations are active, N being an integer value, while assuming that the remaining older TRP Configurations are inactive. In some examples, the value of N may be determined by the UE, based on the UE’s capabilities. In some examples the value of N may be determined by the network, and indicated to the UE during the initial access configuration or during the TRP Cooperation Set configuration.
[0169] In other examples, the TRP activation and deactivation may be performed more compactly by usinga message to initiate switching of one TRP having an associated TRP configuration to a different TPR having an associated TRP configuration. An example may be a “TRP Switching” message, sent by the network. In one example, the “TRP Switching” message may indicate a TRP Configuration to activate and a TRP Configuration to deactivate, thereby corresponding to a switching from one TRP Configuration to another. In another example, the “TRP Switching” message may only indicate the TRP Configuration being activated, whereby the TRP Configuration being deactivated may be determined implicitly. For instance, the TRP Configuration being deactivated may be determined as the oldest active TRP Configuration. Another example comprises the case where a UE may only support one active TRP Configuration. In such case, the TRP Switching may indicate with TRP Configuration will be activated, whereas the remaining configurations are assumed inactive.
[0170] Yet, in other examples, the network may send a “TRP Switching” message upon receiving, from the UE, a message requesting a change of TRP. An example of this may be a “TRP Switching Request” message. In such cases, the network may configure the UE with a TRP Switching Request Trigger Configuration (e.g., as part of the “TRP Configuration Add” message) , which may comprise one or more conditions that may trigger the UE to send a “TRP Switching Request” message. Examples of situations that may be configured to trigger a switching request may include, but are not limited to: the UE cannot detect or decode a configured reference signal; the UE receives a configured reference signal with power below a configured threshold; or the UE receives a reference signal with power outside an expected range, for instance, if the RF map model provides a range of expected received power for a configured reference signal.
[0171] During uplink or downlink data transmission, the network may indicate to the UE the TRP configuration corresponding to the data transmission. The data transmission may be based on single TRP or cooperative multi-point (CoMP) transmission using multiple TRPs. An example of this may be based on non-coherent joint transmission (NCJT) cooperation scheme. For example, one or more TRP indications may be provided in the scheduling downlink control information (DCI) , e.g., by a TRP Configuration ID Indication bit-field. In other examples, the TRP indication provides an implicit indication of the TRP or TRP Configuration (e.g., a TCI state indication, or other transmission parameter indication, associated with a TRP Configuration) , instead of an explicit indication of the TRP or TRP Configuration. In some examples, the UE may use the TRP indication to select one or more transmission or reception parameters configured by the TRP Configuration. In other examples, the UE may use the TRP indication to select an RF map and obtain, from the RF map, one or more transmission or reception parameters.
[0172] In some examples, the UE may be configured to feedback one or more transmission or reception parameters to the network. The UE may obtain some of these parameters from the RF map. For instance, using the parameters from the RF mapmay reduce the requirement for reference signal measurement overhead. Examples of transmission or reception parameters may include, but are not limited to, CQI, PMI, RI, RSRP, and SINR.
[0173] In some examples, the network may indicate to the UE the TRP configuration corresponding to the data transmission, and the UE may obtain, from the RF map, multipath component (MPC) parameters for one or more channel paths. In one example, the UE may use these MPC parameters to determine the UE transmission precoder or reception combiner. The UE may use the MPC parameters by using spatial information, such as angles of arrival and / or angles of departure, which may include either or both of, angles of azimuth arrival and departure or angles of zenith arrival and departure.
[0174] In other examples, the UE may use the MPC parameters (e.g., path delay) to perform Time Alignment, thereby reducing a requirement of network-initiated time alignment, e.g., through Time Advance MAC CE, or to support the network in the time alignment procedure. In yet another example, the UE may use the MPC parameters (e.g., path power) to perform uplink power control, or to assist the network in the uplink power control procedure.
[0175] The signaling described in the present disclosure may be transmitted through radio resource control (RRC) , media access control -control element (MAC-CE) , downlink control information (DCI) , or uplink control information (UCI) signaling. In a preferred example, the signaling comprising the configuration of a cooperation set may be performed using RRC signaling. The signaling comprising the switching, activation, and deactivation of a TRP configuration may be performed using MAC-CE signaling. The TRP configuration indication may be performed using DCI signaling. The signaling may include UE-initiated “TRP Update Request” or “TRP Switching Request” , as well as UE feedback, and may be performed through UCI. Other signaling configurations are not precluded and should be considered within the scope of the disclosure.
[0176] The UE may maintain a list of TRP Configurations (e.g., a list of the TRP Configuration for TRPs in the TRP cooperation set) as provided by the network. In some examples of the present disclosure, the UE may perform one or more of the following: add a TRP Configuration to the TRP cooperation set list, for example, upon receiving a “TRP Configuration Add” message; update the TRP Configuration of a TRP that is part of the TRP cooperation set, for example, upon receiving a “TRP Configuration Modify” message; and remove the TRP Configuration of a TRP from the TRP cooperation set list of TRP configurations, for example, upon receiving a “TRP Configuration Release” message.
[0177] If the TRP Configuration provided by the network does not contain a RF map or radio environment information parameter set, but a reference to the RF map or radio environment information parameter set (e.g., a server address, from where the UE may download the RF map or radio environment information parameter set) , the UE may obtain the RF map from the indicated reference.
[0178] In one example, upon receiving a TRP Configuration (in some examples, may be known as network node configuration) for a TRP (in some examples, may be known as network node) in the TRP cooperation set (in some examples, can be known as network node cooperation set) , the UE may measure reference signals and report the corresponding measurements according to the resources configured or indicated within the TRP configuration.
[0179] In another example, upon receiving a TRP Configuration for a TRP in the TRP cooperation set, the UE may retrieve, from the RF map or other TRP Configuration parameters, some transmissions parameters to use during data transmission from or to said TRP.
[0180] In some examples, the UE is configured by the network to feedback one or more measurement reports and / or transmission parameters (e.g., CQI, PMI, RI, RSRP, SINR etc. ) . If the network indicates, either through configuration or through an indication in the feedback request, that the feedback quantities are to be obtained from reference signal measurements, the UE may measure and report the feedback quantities. If the network indicates, either through configuration or through an indication in the feedback request, that the feedback quantities are to be obtained from the RF map or radio environment information parameter set, the UE may retrieve the feedback quantities from the RF map and report such quantities. If the network does not provide any configuration or indication as to whether the feedback quantities are to be obtained from reference signal measurements or RF map, the UE may, at the UE’s own discretion, decide whether to obtain the feedback quantities from configured reference signals or from the RF map or radio environment information parameter set. In some examples, the UE may indicate to the network whether the feedback quantities were obtained from reference signal measurements or from the RF map or radio environment information parameter set. In other examples, the UE may not indicate the source of the feedback quantities.
[0181] In some examples, if the TRP Configuration includes one or more “TRP configuration update request trigger” , the UE may monitor any variable configured to trigger a TRP Configuration Update Request. If a variable meets the configured conditions for triggering a TRP Configuration Update Request (for example being above or below a defined trigger threshold) , the UE may send a “TRP Configuration Update Request” message to the network, and receive, form the network, a “TRP Configuration Modify” as a response.
[0182] In some examples where a TRP Configuration may be active or inactive, the UE may keep track of the TRP Configuration states for the TRPs in the cooperation set. In a first example, the UE may obtain the initial state of a TRP Configuration from an explicit indication (e.g., an indication in the “TRP Configuration Add” message) . In a second example, the UE may obtain the initial state of a TRP Configuration implicitly (e.g., based on a rule established with the network) .
[0183] In another example, where a TRP Configuration may be active or inactive, a UE may assume a TRP Configuration is active upon receiving a “TRP Activation” message with an indication of said TRP, or assume a TRP Configuration is inactive upon receiving a “TRP Deactivation” message with an indication of said TRP. Likewise, the UE may assume a TRP Configuration is active upon receiving a “TRP Switching” message with an indication of said TRP, and may determine, either by explicit indication or by an implicit indication or pre-established rule, that other TRP Configurationsare inactive.
[0184] In examples where the TRP Configuration may be active or inactive, the UE may measure and report reference signals, or obtain and use transmission parameters corresponding to active TRP Configuration in the TRP cooperation set.
[0185] In another example, if the TRP Configuration includes a “TRP switching request trigger configuration” , the UE may monitor any variable configured to trigger a TRP Switching Request. If a variable meets the configured conditions for triggering a TRP Switching Request, the UE may send a “TRP Switching Request” message to the network, and receive, from the network, a “TRP Switching” message as a response.
[0186] Some of the methods and signaling described herein are further illustrated in FIGs. 6 to 11 to allow for a better understanding. The steps described in the various figures are not necessarily expected to be performed in the order described and not all of the steps may be performed together. It should also be understaood that while each of the examples described below with regard to FIGs. 6 to 11 may be performed as substantially separate and independnet steps, one or more of the functionality performed in each of FIGs. 6 to 11 may be combined as appropriate to perform the functionality described for the different figures in a combined manner. Furthermore, functionality of FIGs. 12 to 15, which are directed to TRP Greoup functionality may be used in combination with fuinctonality described with regard ot FIGs. 6 to 11. This can be seen specifically in FIGs. 12 and 13, which combine both TRP functionalty and TRP Group functionalty, as will be described in detail below.
[0187] FIG. 6 shows an example of signaling between a network 601 and a UE 602. The network 601 may communicate with the UE 602 via one or more network nodes, such as TRP 0 605 and TRP 1 606. At step 620, the network 601, via TRP 0 605, sends a TRP configuration. It may follow an initial access procedure 610. In this example, the network 601 determines (e.g., based on a SSB-beam used for initial access) the TRP cooperation set 604, which in FIG. 6 is a set of TRPs including TRP 0 605 and TRP 1 606, for the UE 602, and sends a “TRP Configuration Add” message comprising the configuration of the two TRPs.
[0188] FIG. 7 shows another example of signaling between the network 601 and the UE 602. The network 601 may communicate with the UE 602 via one or more network nodes, such as TRP 0 605 and TRP 1 606. At step 710, the network 601, via TRP 0 605, sends additional TRP configuration for TRP 2 607 that is added to the TRP cooperation set 604. For instance, this is illustrated as a result of the movement of the UE 602 shown in FIG. 6, such that the UE 602 is now also within the coverage area of a third TRP (i.e., TRP 2 607) . The network 601 thus adds the TRP Configuration corresponding to TRP 2 607 to the list of TRPs in the cooperation set for the UE 602.
[0189] FIG. 8 illustrates another example of signaling between the network 601 and the UE 602. The network 601 may communicate with the UE 602 via one or more network nodes, such as TRP 0 605 and TRP 1 606. At step 810, the network 601 is shown sending a message to initiate the TRP switching or initiating activation. In this example, it may be assumed that the UE 602 is only capable of handling a single active TRP configuration. However, in some examples, it may be assumed that the UE 602 is capable of handling multiple active TRP configurations. The initially-active TRP 0 605 may send a message, such as a “TRP Switching” or a “TRP Activation” message, indicating the UE 602 to assume TRP 1 606 is active (and remaining TRPs, such as 605 or 607, are inactive) .
[0190] FIG. 9 shows another example of signaling between the network 601 and the UE 602. The network 601 may communicate with the UE 602 via one or more network nodes, such as TRP 1 606 and TRP 2 607. At step 910, the network 601 is shown sending a message forremoving a TRP configuration from the cooperation set. For instance, such a step may be used in relation to the movement of the UE 602 in FIG. 7 or FIG. 8, whenthe UE 602 leaves the coverage area of TRP 0 605. The network 601 removes the TRP Configuration corresponding to TRP 0 605 from the list of TRPs in the cooperation set by sending a message, such as a “TRP Configuration Release” message, indicating the UE 602 to release the configuration of TRP 0 605.
[0191] FIG. 10 illustrates an example of an update of a TRP configuration. The network 601 may communicate with the UE 602 via one or more network nodes, such as TRP 1 606 and TRP 2 607. For example, upon the network 601 detecting changes in the propagation environment (e.g., from its sensing capabilities) , the network 601, at step 1020, sends a message, such as a TRP Configuration Modify message, to update the TRP configurations of TRPs for which the wireless communication channel between the UE 602 and the TRP were affected by the environmental changes. Alternatively, and optionally, as indicated by a dashed line, if the UE 602 is configured with parameters which may indicate that the UE should request TRP configuration update, for example TRP Configuration Update Request Triggers, a TRP update procedure may also include triggering, by the UE 602, of a configured update request trigger, and the transmission at step 1010, by the UE 602, of a TRP Configuration Update Request message to the network.
[0192] FIG. 11 illustrates one example of TRP indication for data transmission. In this example, the data transmission is scheduled by TRP 1 606 through a scheduling DCI at step 1110 comprising a TRP Configuration ID Indication that indicates that the data transmission is to be performed from TRP 2 607, as shown in FIG. 11. The UE 602, thus, may retrieve information from the TRP configuration and RF map (or radio environment information parameter set) , from TRP 2 607 in order to properly decode the data transmission at step 1120 from TRP 2 607.
[0193] The present disclosure also allows for the configuration of multiple TRP cooperation sets, which may be referred to as a TRP cooperation set group. In one example of configuration of multiple TRP cooperation sets, the network may, upon sending a list of TRP Configurations (e.g., following the procedures described above) to the UE, configure one or more TRP cooperation sets, by sending a message, such as a“TRP Group Configuration Add” message. In one example, the “TRP Group Configuration Add” message may comprise an indication of a TRP Group ID, and a list of TRP Configuration IDs corresponding to the TRPs belonging to said group. In an example of configuration of multiple TRP cooperation sets, the network may also update or remove TRP Group Configurations from the list of TRP groups.
[0194] The network may update the TRP Group Configuration by sending a TRP group configuration modify or update message. An example of this may be a “TRP Group Configuration Modify” message. In one example, the “TRP Group Configuration Modify” message may comprise a fresh list of the TRP Configuration ID corresponding to the TRP Configurations belonging to the cooperation set. In another example, the “TRP Group Configuration Modify” message may comprise a list of TRP Configuration IDs to add to, and / or a list of TRP Configuration IDs to remove, from the TRP Group Configuration. The network may remove the TRP Group Configuration by sending a TRP group configurtation release message. An example of this may be a “TRP Group Configuration Release” message.
[0195] In some examples, the TRP Group Configuration may be active or inactive. In one example, the network may explicitly indicate the initial state of a TRP Group Configuration to the UE (e.g., through a one-bit indication in the “TRP Group Configuration Add” message) . In another example, the UE may obtain the initial state of a TRP Group Configuration implicitly. For instance, the initial state may be determined from a pre-established rule. Some examples of pre-established rule may determine, for instance, that new TRP Group Configuration are always assumed to be active, or always assumed to be inactive.
[0196] In some examples where the TRP Group Configuration may be active or inactive, the network can activate or deactivate a TRP Group Configuration by sendinga “TRP Group Activation” or a “TRP Group Deactivation” message, respectively, which may include the ID of the TRP Group Configuration being activated or deactivated. In other examples, the network may indicate the activation and deactivation of multiple TRP Group Configurations simultaneously. For instance, the network may send a “TRP Group Activation List” message indicating the TRP Group IDs to activate, or a “TRP Group Deactivation List” message indicating the TRP Group IDs to deactivate.
[0197] In other examples where the TRP Group Configuration may be active or inactive, the activation and the deactivation of TRPs may be performed compactly by a “TRP Group Switching” message. In one example of TRP group switching, the “TRP Group Switching” message may include an explicit indication of the TRP Group Configuration to activate and the TRP Group Configuration to deactivate. In another example of TRP Group Switching, a message, such as the “TRP Group Switching” message, may include only an indication of the TRP Group Configuration being activated, whereas the TRP Group Configuration to be deactivated may be obtained implicitly (e.g., by a pre-established rule) . Some examples of pre-established rules include deactivating all remaining TRP Group Configuration, or deactivating the oldest active TRP Group Configuration. In yet another example of TRP Group Switching, the UE may only be capable of handling a limited number of configured and active TRP Group Configurations. For instance, if a UE is configured with two TRP Group Configurations and may only handle a single active TRP Group Configuration, the “TRP Group Switching” message does not need to include any indication of the TRP Group Configuration to activate, the UE may assume upon receiving a switching message that the inactive configuration is to be activated and the active configuration to be deactivated.
[0198] Yet, in other example where the TRP Group Configuration may be active or inactive, the network may send a message, such as a “TRP Group Switching” message, upon receiving, from the UE, a request message to switch from one TRP Group to another TRP Group, such as a “TRP Group Switching Request” message. In such a case, the network may configure the UE with a TRP Group Switching Request Trigger Configuration (e.g., as part of the “TRP Group Configuration Add” message) , which may comprise one or more conditions that may trigger the UE to send a “TRP Group Switching Request” message. Examples of situations that may be configured to trigger a TRP Group Switching Request may include: the UE may not detect or decode a configured reference signal from one or more of the TRPs belonging to the TRP Group Configuration; the UE receives a configured reference signal with power below a configured threshold from one or more of the TRPs belonging to the TRP Group Configuration; the UE receives a reference signal with power outside of an expected range (for instance, if the RF map model provides a range of expected received power for a configured reference signal) from one or more of the TRPs belonging to the TRP Group Configuration.
[0199] The signaling comprising the TRP Group Configuration (Add, Modify, Release) , Activation, Deactivation, Switching may be transmitted through RRC, MAC-CE, DCI. In a preferred example, the signaling comprising the TRP Group Configuration may be performed through RRC signaling; the signaling comprising the TRP Group Switching, Activation, and Deactivation of a TRP Group Configuration may be performed through MAC-CE signaling. In a preferred example, signaling comprising UE-initiated “TRP Group Update Request” or “TRP Group Switching Request” , may be performed through UCI. Other signaling configurations are not precluded and should be considered within the scope of the disclosure.
[0200] The UE may maintain a list of TRP Group Configurations as provide by the network. In some examples of the present disclosure, the UE may perform one or more of the following: - add a TRP Group Configuration to the TRP group cooperation set list upon receiving a message, for example a “TRP Group Configuration Add” message; - update the TRP Group Configuration of a TRP Group that is part of the TRP group cooperation set upon receiving a message, for example a “TRP Group Configuration Modify” message; and - remove the TRP Group Configuration of a TRP group from the TRP group cooperation set list of TRP Group Configurations upon receiving a message, for example a “TRP Group Configuration Release” message.
[0201] In one example, upon receiving a “TRP Group Configuration Release” message, the UE is not expected to release any TRP Configuration corresponding to TRPs belonging to the TRP Group (e.g., any release of TRP Configuration is to be performed by an explicit “TRP Configuration Release” message) . In another example, the UE is expected to release any TRP Configuration belonging to the TRP Group that is not part of another configured TRP Group Configuration. In yet another example, the network may configure or explicitly indicate (e.g., as part of a “TRP Group Configuration Release” message) whether the UE is expected to release any TRP Configurations for the corresponding TRPs belonging to the TRP Group.
[0202] In one example, upon receiving a TRP Group Configuration, the UE is expected to measure reference signals and to report the corresponding measurements according to the resources configured or indicated within the TRP Configuration for the TRPs belonging to the TRP Group Configuration.
[0203] In some examples where a TRP Group Configuration may be active or inactive, the UE may keep track of the TRP Group Configuration states for the configured TRPs cooperation sets. In a first example, the UE may obtain the initial state of a TRP Group Configuration from an explicit indication (e.g., an indication in the “TRP Group Configuration Add” message) . In a second example, the UE may obtain the initial state of a TRP Group Configuration implicitly (e.g., based on a rule established with the network) .
[0204] In some examples where a TRP Group Configuration may be active or inactive, a UE may assume a TRP Group Configuration is active upon receiving a “TRP Group Activation” message with an indication of said TRP Group, or to assume a TRP Group Configuration is inactive upon receiving a “TRP Group Deactivation” message with an indication of said TRP Group.
[0205] In some examples where the network may indicate the activation and deactivation of multiple TRP Group Configurations simultaneously, the UE, upon receiving a message to activate or deactivate multiple TRP Group Configurations, may assume the TRP Group Configurations listed in the message areactive or inactive, respectively. A message to activate or deactivate multiple TRP Group Configurations may be considered a “TRP Group Activation List” or a “TRP Group Deactivation List” message, respectively.
[0206] In other examples, upon receiving a “TRP Group Switching” message, the UE may assume a TRP Group Configuration is active upon receiving a “TRP Group Switching” message with an indication of said TRP. The UE may then determine, either by explicit indication or by an implicit or pre-stablished rule, the TRP Group Configurations that the UE is expected to assume to be inactive.
[0207] In other examples, if the TRP Group Configuration includes a “TRP group switching request trigger configuration” , the UE may monitor any variable configured to trigger a TRP Group Switching Request. If a variable meets the configured conditions for triggering a TRP Group Switching Request, the UE may send a “TRP Group Switching Request” message to the network, and to receive, from the network, a “TRP Group Switching” message as a response.
[0208] In another example, if the TRP configurations may be activated or deactivated, the UE may measure reference signals for the active TRPs belonging to the TRP Group Configuration and report the corresponding measurements of the configured resources indicated within the TRP Configuration.
[0209] In yet another example, if the TRP Group Configuration may be activated or deactivated, the UE may measure reference signals for the TRPs belonging to active TRP Group Configurations and report the corresponding measurements of the configured resources indicated within the TRP Configuration. Furthermore, if the TRP Configurations may also be activated or deactivated, the UE may measure reference signals for the active TRPs belonging to active TRP Group Configurations and report the corresponding measurements of the configured resourcesindicated within the TRP Configuration.
[0210] The methods and signaling described herein for the multiple TRP cooperation sets are further illustrated in FIGs. 12, 13, 14, and 15 to allow for a better understanding. The steps described below are not necessarily expected to be performed in the order described and not all of the steps may be performed together. The steps described in the various figures are not necessarily expected to be performed in the order described and not all of the steps may be performed together.
[0211] FIG. 12 illustrates an example of signaling between a network 601 and a UE 602. FIG. 12 illustrates how a TRP Group may be set up. In this partiuclar example, configuration information for each of multiple TRPs is added, and then configuration for establishing a TRP group, which includes multiple TRPs, is added. The network 601 may communicate with the UE 602 via one or more network nodes, such as TRP 0 605, TRP 1 606, and TRP 2 607. At step 1220, the network 601, via TRP 0 605, is illustrated sendingmultiple TRP configuration messages (1220 and 1230) . These configuration messages may follow an initial access procedure 1210 to enable the configuration of an initial TRP Group 1 604. The TRP Group 1 604 is considered to include TRP 0 605, TRP 1 606, and TRP 2 607. In FIG. 12, the UE 602, upon performing the initial access1210, receives from the network 601, a set of configuration messages, such as “TRP Configuration Add” messages, corresponding to TRP 0 605, TRP 1 606, and TRP 2 607, followed by a “TRP Group Configuration Add” message at step 1230, indicating that TRP 0 605, TRP 1 606, and TRP 2 607 belong to the TRP Group 1 604.
[0212] As the UE 602 moves, it may enter the coverage area of other TRPs that do not belong to any configured group. As illustrated by FIG. 13, the network 601 may send, at step 1310, another set of “TRP Configuration Add” messages corresponding to configuration information forTRP 3 608 and TRP 4 609, and send, at step 1320, a “TRP Group Configuration Add” message to configure an additional TRP Group2 615. In this example, the newly configured TRP Group 2 615 is not activated (i.e., only TRP Group 1 604 is active) . TRP Group 2 615 is shown to include TRP 2 607, TRP 3 608, and TRP 4 609. It is noted that in this example TRP 2 607 is included in both TRP Group 1 604 and TRP Group 2 615. This example shows that in some examples a TRP may be included in more than one TRP Group, but this may not always be the case.
[0213] FIG. 14 illustrates an example ofa TRP Group Switching procedure. In this example, the network 601 sends the UE 602 a “TRP Group Switching” message at step 1410. Since only two TRP groups are configured (TRP Group 1 604 and TRP Group 2 615) , the UE 602may activate the inactive group (TRP Group 2 615) and deactivate the active group (TRP Group 1 604) .
[0214] As the UE 602 moves further, the UE may leave the coverage area of TRPs that belong a configured group. In the example illustrated by FIG. 15, the UE has moved out of the range of TRP 0 605 and TRP 1 606 that are part of TRP Group 1 604, and so the network 601 may send the UE 602 a “TRP Group Configuration Release” at step 1510 to release the configuration of TRP Group 1 604.
[0215] Further to the particular examples described above with regard to FIGs. 6 to 15, aspects of the present disclosure may generally include methods for use at a client side apparatus and a network side apparatus in a wireless network. FIG. 16 is an example of a signal flow diagram 1600 illustrating signaling between a network (NW) 1601 and a user equipment (UE) 1602. The network 1601 may communicate with the UE 1602 via one or more network nodes, such as indivdual TRPs. Example of such TRPs may be TRPs shown in FIGs. 6 to 15.
[0216] At step 1610, an initial access procedure may occur between the UE 1601 and the netwtork 1602. This initial access procedure may be known to one skilled in the art and is not further described here.
[0217] In this example, the network 1601 may determine (e.g., based on a SSB-beam used for initial access) aset of TRPs, one or more of which may be in contact with the UE 1602, which may be referred to as a TRP cooperation set.
[0218] At step 1620, the network 1601 sends TRP configuration information to the UE 1602. An example of such configuration information may be a “TRP Configuration Add” message comprising configuration information to add one or more TRPs. In some examples, one or more TRPs could be added in a single configuration add message. In some examples, multiple configuration add messages may be sent over time as the UE movesand the UE 1602 encounters additional TRPs that the UE may interact with. In such examples, while not shown in FIG. 16, signaling from the network 1601 may occur at almost anytime with additional configuration add messages to the UE 1602. Examples of such signaling are shown in FIGs. 6 and 7 and step 1220 of FIG. 12 and step 1310 of FIG. 13.
[0219] At step 1630, the network 1601 sends TRP Group configuration information to the UE 1602. An example of such configuration information may be a “TRP Group Configuration Add” message comprising configuration information to add one or more TRP Groups. In some examples, one or more TRP Groups could be added in a single configuration add message. In some examples, multiple configuration add messages may be sent over time as the UE movesand the UE 1602 encounters additional TRP Groups that the UE may interact with. In such examples, while not shown in FIG. 16, signaling from the network 1601 may occur at almost anytime with additional TRP Group configuration add messages to the UE 1602. Examples of such signaling are shown in step 1230 of FIG. 12 and step 1320 of FIG. 13.
[0220] At step 1640, the network 1601 sends additional TRP configuration information to the UE 1602. Examples of such configuration information may be one or more of, but not limited to, updating, switching, or releasing configuration of a TRP. In some examples, while not shown in FIG. 16, signaling from the network 1601 may occur at almost anytime with such updating, switching, or releasing configuration messages to the UE 1602. Examples of such signaling are shown in FIGs. 8, 9, and 10. As shown in the example of FIG. 10, which pertains to modifying TRP configuration, the UE 1601 may, in some examples, (not shown in FIG. 16) transmit a request for updating the TRP configuration, which may result in the network 1601 sending a TRP configuration modify message.
[0221] At step 1650, the network 1601 sends additional TRP Group configuration information to the UE 1602. Examples of such configuration information may be one or more of, but not limited to, updating, switching, or releasing configuration of a TRP Group. In some examples, while not shown in FIG. 16, signaling from the network 1601 may occur at almost anytime with such updating, switching, or releasing configuration messages to the UE 1602. Examples of such signaling are shown in FIGs. 14 and 15.
[0222] At step 1660, the network 1601 and the UE 1602 may transmit data from the network 1601 to the UE 1602 or from the UE 1602 to the network 1601. While step 1660 is shown in FIG. 16 to be after all the configuration steps, it may be possible that step 1660 may occur after one or more of the configuration steps are performed, such that the UE is properly configured to allow data to be successfully transmitted between the network 1601 and UE 1602.
[0223] In the present disclosure, the terms “a” or “an” are defined to mean “at least one” , that is, these terms do not exclude a plural number of items, unless stated otherwise.
[0224] In the present disclosure, terms such as “substantially” , “generally” and “about” , which modify a value, condition or characteristic of a feature of an example embodiment, should be understood to mean that the value, condition or characteristic is defined within tolerances that are acceptable for the proper operation of the example embodiment for its intended application.
[0225] In the present disclosure, unless stated otherwise, the terms “connected” and “coupled” , and derivatives and variants thereof, refer herein to any structural or functional connection or coupling, either direct or indirect, between two or more elements. For example, the connection or coupling between the elements can be acoustical, mechanical, optical, electrical, thermal, logical, or any combinations thereof.
[0226] In the present disclosure, expressions such as “match” , “matching” and “matched” , including variants and derivatives thereof, are intended to refer herein to a condition in which two or more elements are either the same or within some predetermined tolerance of each other. That is, these terms are meant to encompass not only “exactly” or “identically” matching the two elements but also “substantially” , “approximately” or “subjectively” matching the two or more elements, as well as providing a higher or best match among a plurality of matching possibilities.
[0227] In the present disclosure, the expression “based on” is intended to mean “based at least partly on” , that is, this expression can mean “based solely on” or “based partially on” , and so should not be interpreted in a limited manner. More particularly, the expression “based on” could also be understood as meaning “depending on” , “representative of” , “indicative of” , “associated with” or similar expressions.
[0228] In the present disclosure, the terms "system" and "network" may be used interchangeably in different implementations of this application. "At least one" means one or more, and "a plurality of" means two or more. The term "and / or" describes an association relationship of associated objects, and indicates that three relationships may exist. For example, A and / or B may indicate the following three cases: Only A exists, both A and B exist, and only B exists, where A and B may be singular or plural. The character " / " indicates an "or" relationship between associated objects. "At least one of the following items (pieces) " or a similar expression thereof indicates any combination of these items, including a single item (piece) or any combination of a plurality of items (pieces) . For example, "at least one of A, B, or C" includes: only A; only B; only C; A and B; A and C; B and C; or A, B, and C, and "at least one of A, B, and C" may also be understood as including: only A;only B; only C; A and B; A and C; B and C; or A, B, and C. In addition, unless otherwise specified, ordinal numbers such as "first" and "second" in implementations of this application are used to distinguish between a plurality of objects, and are not used to limit a sequence, a time sequence, priorities, or importance of the plurality of objects.
[0229] A person skilled in the art should understand that implementationsof this application may be provided as a method, an apparatus (or system) , computer-readable storage medium, or a computer program product. Therefore, this application may use a form of a hardware-only embodiment, a software-only embodiment, or an embodiment with a combination of software and hardware. Moreover, this application may use a form of a computer program product that is implemented on one or more computer-usable storage media (including but not limited to a disk memory, an optical memory, and the like) that include computer-usable program code.
[0230] This application is described with reference to the flowcharts and / or block diagrams of the method, the device (system) , and the computer program product according to this application. It should be understood that computer program instructions may be used to implement each process and / or each block in the flowcharts and / or the block diagrams and a combination of a process and / or a block in the flowcharts and / or the block diagrams. The computer program instructions may be provided for a general-purpose computer, a dedicated computer, an embedded processor, or a processor of another programmable data processing device and enable a machine to execute the instructions. When executed by any computer or the processor of a programmable data processing device, the instructions cause the apparatus to implement specific functions as described in one or more procedures in the flowcharts and / or one or more blocks in the block diagrams. The computer program instructions may alternatively be stored in a computer-readable memory that can indicate a computer or another programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate an artifact that includes an instruction apparatus. The instruction apparatus implements a specific function in one or more procedures in the flowcharts and / or one or more blocks in the block diagrams.
[0231] The computer program instructions may alternatively be loaded onto a computer or another programmable data processing device, so that a series of operations and steps are performed on the computer or the another programmable device, so that computer-implemented processing is generated. Therefore, the instructions executed on the computer or on another programmable device provide steps for implementing specific functions as described in one or more procedures in the flowcharts and / or one or more blocks in the block diagrams.
[0232] It is clear that a person skilled in the art can make various modifications and variations to this application without departing from the scope of this disclosure. This disclosure is intended to cover these modifications and variations of this application provided that they fall within the scope of protection defined by the following claims and their equivalent technologies.
Claims
1.A method for use at a client side apparatus in a wireless network, the method comprising:receiving one or more configuration information for each of at least one network node of at least one network node cooperation set; and wherein the one or more configuration information is activated, deactivated, released or modified upon receiving indicationinformation.2.The method of claim 1, wherein the indication information comprises configuration information for a different network node than the at least one network node, and the method further comprising:receiving the configuration information comprising one or more configuration elements for the different network node.3.The method of claim 2, wherein the indication information comprises updated configuration information of the configuration element for at least one of the network nodes in the network node cooperation set, and the methodfurther comprising:receiving the updated configuration information of the configuration elementfor at least one of the network nodes in the network node cooperation set; andmodifying one or more configuration element based on the received updated configuration information.4.The method of claim 3 further comprising sending a configuration update request.5.The method of claim 4 further comprising:monitoring a parameter related to sending the configuration update request; andwhen the parameter is triggered, sending the configuration update request.6.The method of any one of claims 1 to 5, wherein the indication information comprises activation or deactivation information indicating a network node to be activated or deactivated, and the methodfurther comprising:receiving the activation or deactivation information; andactivating or deactivating the configuration information, respectively, for the indicated network node.7.The method of any one of claims 1 to 6, wherein the indication information comprises information for switching a network node, and the method further comprising:receiving the information for switching a network node; andswitching active configuration information from a first network node in the at least one network node cooperation set to a second network node in the network node cooperation set.8.The method of claim 7, further comprising sending a network node switching request for switching the network node.9.The method of claim 8 further comprising:monitoring a parameter related to switching the network node; andwhen the parameter is triggered, sending the request for switching the network node.10.The method of any one of claims 1 to 9, wherein the indication information comprises release network node configuration information identifying one or more network node configurations associated with the network node cooperation set, and the method further comprising:receiving the release network node configuration information identifying one or more network node configurations associated with the network node cooperation set; andreleasing the one or more network node configurations.11.The method of any one of claims 1 to 10 further comprising:receiving, from a first network node in the at least one network node cooperationset, scheduling information for a data transmission from a second network node in the network node cooperationset; andreceiving, from the second network node, the data transmission.12.The method of any one of claims 1 to 11, whereina network node cooperation set group comprises multiple network node cooperationsets, each network node cooperation set group associated with a network node group identification (ID) , the network node group ID being associated with a set of network node configuration IDs, each network node configuration ID associated with the configuration of a network node included in a network node cooperationset of the network node cooperationset group.13.The method of claim 12, wherein:receiving the one or more configuration information comprises receiving network node cooperation set group configuration information comprising a network node group ID.14.The method of claim 12 or 13 further comprising:receiving network node cooperation set group configuration information comprising the network node group ID associated with the new network node cooperation set group.15.The method of any one of claims 12 to 14 further comprising:modifying the configuration information for one or more network node groups in the respective network node cooperationsets of the network node cooperationset group associated with the network node group ID, upon receiving at least one of:a list of network node configuration IDs corresponding to network nodeconfigurations belonging to the network nodecooperation set; ora list of network nodeconfiguration IDs to add to the network nodegroup configuration; anda list of network node configuration IDs to remove from the network node group configuration.16.The method of any one of claims 12 to 15, wherein the indication information comprises activation or deactivation information indicating a network node group to be activated or deactivated, and the method further comprising:receiving activation or deactivation information; andactivating or deactivating the configuration information for the indicated network node group associated with the network nodegroup ID.17.The method of any one of claims 12 to 16, wherein the indication information comprises information for switching a network node group, and the methodfurther comprising:receiving switch network node group information; andswitching the active configuration information from a first network node group to a second network node group based onthe switch network node group information.18.The method of any one of claims 12 to 17, wherein the indication information comprises release network node group configuration information identifying one or more network node group configurations associated with the network node cooperation set, and the method further comprising:receiving release network node group configuration information; andreleasing one or more network node group configurations based on the release network node group configuration information.19.The method of any one of claims 1 to 18, wherein the received configuration information for at least one network node includes at least one of:network node configuration update request trigger configuration; andnetwork node switching request trigger configuration.20.The method of any one of claims 1 to 19 further comprising:transmitting feedback information pertaining to measurement reports or transmission parameters.21.The method of claim 20, wherein the feedback information is based on at least one of:measurement of reference signals between the client side apparatus and the one or more network side devices; andinformation in the radio environment information parameter set.22.The method of claim 20 or 21, wherein the feedback information includes at least one of:reference signal received power;channel quality indicator;precoding matrix indicator;rank indicator; andsignal to interference-plus-noise ratio.23.The method of claim 21 or 22, wherein the reference signals include at least one of synchronization signal block, a channel state information reference signal, or a sounding reference signal.24.A method for use in a wireless network, the method comprising:transmitting one or more configuration information for each of at least one network node of at least one network node cooperationset, wherein the configuration isactivated, deactivated, released, or modified upon receiving indication information.25.The method claim 24, wherein the indication information comprises configuration information for a different network node than the at least one network node, and the method further comprising:transmitting configuration information comprising one or more configuration elements for the differentnetwork node.26.The method of claim 24 or 25further comprising:transmitting updated configuration information of the configuration element for a network node enabling modification of the configuration element.27.The method of claim 26 further comprising receiving a configuration update request from the client side device.28.The method of any one of claims 24 to 27 further comprising, wherein the indication information comprises activation or deactivation information indicating a network node to be activated or deactivated, and the method:transmitting activation or deactivation information for an indicated network node in the network node cooperation set to enable activating or deactivating of the configuration information for the indicated network node.29.The method of any one of claims 24 to 28 further comprising, wherein the indication information comprises information for switching a network node, and the method:transmitting information for switchinga network node to enable switching active configuration information for a first network node included in the network node cooperation set to a second network node in the network node cooperation set.30.The method of claim 29further comprising receiving a network node switching request from the client side device for enabling switching the network node.31.The method of any one of claims 24 to 30 further comprising, wherein the indication information comprises release network node configuration information identifying one or more network node configurations associated with the network node cooperation set, and the method:transmitting release network node configuration information identifying one or more network node configurations associated with the network node cooperationset to enable releasing the one or more network node configurations.32.The method of any one of claims 24 to 31 further comprising:transmitting from a first network node in the network node cooperationset, scheduling information for a data transmission from a second network node in the network nodecooperationset.33.The method of any one of claims 24 to 32, wherein multiple network node cooperationsets are a network node cooperationset group, each network node cooperationset group associated with a network node group identification (ID) , the network node group ID being associated with a set of network node configuration IDs, each network node configuration ID associated with the configuration of a network node included in a network nodecooperationset of the network node cooperationset group.34.The method of claim 33, wherein the transmitting the configuration information comprises transmitting network node cooperation set group configuration information comprising a network node group ID based on the associated network node configuration ID, in the respective network node cooperationsets of the network node cooperationset group associated with the network node group ID.35.The method of claim 33 or 34 further comprising transmittingnetwork node cooperation set group configuration information comprising the network node group ID associated with a new network node cooperation set group.36.The method of any one of claims 33 to 35 further comprising transmitting at least one of:a list of network node configuration IDs corresponding to network node configurations belonging to the network node cooperation set; ora list of network node configuration IDs to add to the network node group configuration; anda list of configuration IDs to remove from the network node group configuration.37.The method of any one of claims 33 to 36, wherein the indication information comprises activation or deactivation information indicating a network node group to be activated or deactivated, and the methodfurther comprising transmittingthe activation or deactivation information for the indicated network node group to enable activating or deactivating, respectively, the configuration information for the indicated network node group associated with the network node group ID.38.The method of any one of claims 34 to 37, wherein the indication information comprises information for switching a network node group, and the methodfurther comprising transmitting the switching anetwork node group information to enable switching the active configuration information from a first network node group toa second network node group.39.The method of any one of claims 34 to 37, wherein the indication information comprises release network node group configuration information identifying one or more network node configurations associated with the network node cooperation set, and the method further comprising transmitting, to the client side device, the release network node group configuration information identifying one or more network node group configurations associated with the network node cooperationset group to enable releasing the one or more network node groups.40.The method of any one of claims 24 to 39, wherein the transmitted configuration information for at least one network node includes at least one of:network node configuration update request trigger configuration; andnetwork node switching request trigger configuration.41.The method of any one of claims 24 to 40 further comprising:receiving feedback information pertaining to measurement reports or transmission parameters.42.The method of claim 41, wherein the feedback information is based on at least one of:measurement of reference signals between the client side apparatus and one or more network side devices; andinformation in the radio environment information parameter set.43.The method of claim 41 or 42, wherein the feedback information includes at least one of:reference signal received power;channel quality indicator;precoding matrix indicator;rank indicator; andsignal to interference-plus-noise ratio.44.The method of claim 42 or 43, wherein the reference signals include at least one of synchronization signal block, a channel state information reference signal, or a sounding reference signal.45.The method of claim 1 or 24, wherein each configuration information of the one or more configuration information comprises a configuration element that comprises one or more of:at least one radio environment information parameter set;at least one reference signal parameter;at least one transmission parameter set; andat least one reception parameter set.46.The method of claim 45, wherein the at least one radio environment information parameter set comprises one or more of:at least one reference signal parameter;at least one transmission parameter;at least one reception parameter;at least one estimate of the wireless channel; andat least one estimate of the wireless channel multipath components.47.The method of claim 45 or 46, wherein the at least one transmission parameter set or the at least one reception parameter set comprises one or more of:beamforming information;time alignment information;transmission configuration indication state configuration;channel quality indicator;precoding matrix indicator;rank indicator; andmodulation and coding scheme.48.The method of any one of claims 45 to 47, wherein the at least one reference signal parameter comprises one or more of:reference signal measurement configuration parameters;reference signal reporting configuration parameters;expected value of at least one of reference signal received power, signal to interference-plus-noise ratio, or signal to noise ratio corresponding to a reference signal; andexpected range of at least one of reference signal received power, signal to interference-plus-noise ratio, or signal to noise ratio corresponding to a reference signal.49.The method of any one of claims 46 to 48, wherein the at least one estimate of the wireless channel multipath components comprises one or more of:angles of arrival;angles of departure;path delay;path power;cross polarization ratio; andinitial phases.50.The method of any one of claims 45 to 49, wherein at least one parameter in the information in at least one the radio environment information parameter set is related to at least one of location and orientation of the client side device.51.The method of any one of claims 45 to 50, wherein the at least one radio environment information parameter set is in the format of at least one of:a 2D or 3D representation of an environment local to the client side device;a look-up table;a database; andan inference model.52.An apparatus comprising:a processor; anda computer-readable medium having stored thereon, computer-executable instructions that, when executed, cause the apparatus to perform the method of any one of claims 1 to 51.53.A non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions that, when executed by a processor of an apparatus, enable the apparatus to perform any one of claims 1 to 51.