Communication method and communication apparatus
By scheduling reference signals and physical resources across multiple network nodes with overlapping time and carrier resources, the method optimizes resource utilization and flexibility in wireless communication systems.
Patent Information
- Application Number
- PCT/CN2024/129742
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-08-02
- Filing Date
- 2024-11-04
- Publication Date
- 2026-02-05
AI Technical Summary
The current cell-based configuration mechanism in wireless communication systems fails to flexibly utilize resources as the number of network nodes increases, leading to inefficiencies in resource utilization.
A method and apparatus that enable the scheduling of sets of reference signals and physical resources across multiple network nodes, allowing for overlapping time resources and carriers, thereby optimizing resource utilization and flexibility.
This approach enhances the utilization of network node and time resources by enabling simultaneous transmission and reception of reference signals from multiple nodes, improving flexibility and efficiency in resource allocation.
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Figure CN2024129742_05022026_PF_FP_ABST
Abstract
Description
[Corrected under Rule 26, 06.12.2024]COMMUNICATION METHOD AND COMMUNICATION APPARATUS
[0001] The present application claims priority to US patent application No. 63 / 678,754, entitled "UC-CF based measurement and pre-configure signaling" , filed on August 2, 2024 and hereby incorporated by reference in its entirety.TECHNICAL FIELD
[0002] Embodiments of the present application relate to the field of communications, and more specifically, to a communication method and communication apparatus for configuring.BACKGROUND
[0003] In a wireless communication system, a terminal can get access to the network by selecting a cell to camp on or register. In the subsequent communication process, such as the measurement process, the terminal can be configured based on the cell.
[0004] For telecommunication, as the demand for capacity and coverage continue to increase, increasing number of network nodes are deployed. However, the current cell-based configuration mechanism cannot flexibly utilize the resources under such scenario.
[0005] Therefore, how to improve the utilization of resources becomes an urgent problem to be solved.SUMMARY
[0006] Embodiments of the present application provide a method, apparatus, and system of information transmission that can improve the utilization of resources.
[0007] According to a first aspect, a method is described. The method may be applied at a terminal side, for example, a terminal (e.g., user equipment (UE) ) or a module in a terminal, a circuit or a chip (for example, a modem chip, also referred to as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip that includes a modem core responsible for a communication function in a terminal. For example, the method is applied to a terminal. In this method, the terminal receives configuration information, where the configuration information indicates sets of reference signals, the sets of reference signals are respectively associated with sets of physical resources, the sets of reference signals are associated with two or more network nodes, each of the sets of reference signals includes one or more reference signals, each of the sets of physical resources includes one or more physical resources, and a time resource within each of the sets of physical resources partially or fully overlap; and the terminal receives the sets of reference signals based on the configuration information.
[0008] According to a second aspect, a method may be applied to a network side, for example, a location server (e.g., a network node) or a component (for example, a circuit, a chip, or a chip system) in a location server on a network side. For example, the method is applied to a location server. In the method, the location server generates configuration information, where the configuration information indicates sets of physical resources respectively associated with sets of reference signals, the sets of reference signals are associated with two or more network nodes, each of the sets of reference signals comprises one or more reference signals, each of sets of physical resources comprises one or more physical resources, and a time resource within each of sets of the physical resources partially or fully overlap; and the location server transmits the configuration information.
[0009] According to the above solution, the network side can schedule sets of physical resources for the terminal to receive sets of reference signals. The sets of physical resources are associated with two or more network nodes, that is, the network side can schedule two or more network nodes to serve the terminal, making full use of network node resources. A time resource within each of the sets of physical resources partially or fully overlap, that is, the time resource can be shared by the sets of reference signals, making full use of time resources. The terminal receives the sets of reference signals that are mapped on the sets of physical resources, improving the utilization of resources.
[0010] According to the second aspect, in a possible design, the method further includes: the location server transmits at least one set of the sets of reference signals.
[0011] According to the first aspect or the second aspect, in a possible design, each of the two or more network nodes is associated with at least one of the sets of reference signals.
[0012] According to the above solution, each network node can transmit at least one set of reference signals to the terminal. The terminal can receive the sets of reference signals from two or more network nodes, the network node resources are fully utilized.
[0013] According to the first aspect or the second aspect, in a possible design, each of the sets of physical resources corresponds to a network node of the two or more network nodes.
[0014] According to the above solution, a set of reference signals may be transmitted by a network node. The network side can schedule sets of physical resources for the terminal from the granularity of network nodes, improving flexibility of resource utilization.
[0015] According to the first aspect or the second aspect, in a possible design, each of the sets of physical resources is associated with a carrier.
[0016] According to the above solution, a set of reference signals may be mapped on a carrier. The network side can schedule sets of physical resources for the terminal from the granularity of carriers, improving flexibility of resource utilization.
[0017] According to the first aspect or the second aspect, in a possible design, a carrier associated with each of the sets of physical resources is comprised in a set of one or more carriers.
[0018] According to the above solution, sets of one or more carriers may be predefined or preconfigured. The network side may schedule sets of physical resources for the terminal from the granularity of sets of pneumonia or more carriers.
[0019] According to the first aspect or the second aspect, in a possible design, the set of one or more carriers is associated with at least one public land mobile network (PLMN) .
[0020] According to the above solution, there may be a set of one or more carriers associated with multiple PLMNs. That is, a set of one or more carriers may be shared by multiple operators, and the multiple operators may serve the same terminal.
[0021] According to the first aspect or the second aspect, in a possible design, the configuration information further indicates one or more of: two or more identifiers of the two or more network nodes, and an identifier corresponding to a set of the two or more network nodes.
[0022] According to the above solution, an identifier can be assigned / associated with each network node. Alternatively, the two or more network nodes can be predefined or preconfigured into a set. The set may be assigned / associated with an identifier, so that the network side can indicate the identifier of the set, reducing resource consumption of the configuration information.
[0023] According to the first aspect or the second aspect, in a possible design, the time resource within each of the sets of physical resources are associated with one or more following parameters: time locations; transmission periodicity associated with a set of one or more carriers, where the set of one or more carriers comprises a carrier within the corresponding set of physical resources; transmission periodicity associated with a set of the two or more network nodes; transmission periodicity associated with a carrier within the corresponding set of physical resources; and transmission periodicity associated with a network node corresponding to the corresponding set of physical resources.
[0024] According to the above solution, the terminal can be configured with various time-related parameters, so that the terminal can receive each of the sets of reference signals reliably.
[0025] According to the first aspect or the second aspect, in a possible design, the sets of reference signals comprise a first set of reference signals and a second set of reference signals; where, the first set of reference signals is associated with a first carrier, the second set of reference signals is associated with a second carrier, a time resource within a set of physical resources associated with the first set of reference signals overlaps partially or fully with a time resource within a set of physical resources associated with the second set of reference signals; or the first set of reference signals is associated with a first network node of the set of two or more network nodes, the second set of reference signals is associated with a second network node of the set of two or more network nodes, a time resource associated with the first set of reference signals overlaps partially or fully with a time resource associated with the second set of reference signals.
[0026] According to the above solution, two sets of reference signals associated with the two carriers may be configured for simultaneous transmission, or two sets of reference signals associated with the two network nodes may be configured for simultaneous transmission.
[0027] According to the first aspect or the second aspect, in a possible design, the configuration information further indicates one or more of: a measurement order of the two or more network nodes; a measurement order of a carrier within each of the sets of physical resources; a rule when a collision occurs on the sets of reference signals; antenna ports associated with the sets of reference signals; beams associated with the sets of reference signals; transmit power associated with the sets of reference signals; quasi co-located relationship between the sets of reference signals; a first network node to which measurement information to be transmitted, wherein the measurement information is based on the sets of reference signals; work duration associated with a carrier within one of the sets of physical resources; and work duration associated with one of the two or more network nodes.
[0028] According to the above solution, the configuration information can indicate various of parameters to the terminal, so that the terminal can receive the sets of reference signals more reliably.
[0029] According to the first aspect or the second aspect, in a possible design, a first network node is associated with a first set of one or more carriers, the first set of one or more carriers comprises one or more of: an initial access carrier, an anchor carrier, and a serving carrier, wherein the first network node is a network node that to which measurement information to be transmitted, and the measurement information is based on the sets of reference signals.
[0030] According to the above solution, the terminal can report measurement information to various types of network nodes, and the uplink and downlink can be decoupled.
[0031] According to the first aspect or the second aspect, in a possible design, part or all of the set of two or more network nodes support at least one power saving mode.
[0032] According to the above solution, a network node can be in a power saving mode, instead of UE fixed dependence on this network node, because the network side can schedule resources for the terminal from the granularity of network nodes.
[0033] According to a third aspect, a method may be applied to a network side, for example, a location server (e.g., a network node) or a component (for example, a circuit, a chip, or a chip system) in a location server on a network side. For example, the method is applied to a location server. In the method, the location server generates at least one set of sets of reference signals, where sets of reference signals are respectively associated with sets of physical resources, the sets of reference signals are associated with two or more network nodes, each of the sets of reference signals comprises one or more reference signals, each of sets of physical resources comprises one or more physical resources, and a time resource within each of sets of the physical resources partially or fully overlap; and the location server transmits the at least one of the sets of reference signals.
[0034] Various designs and technical effects according to the third aspect can be referred to the descriptions of the first aspect and second aspect.
[0035] According to a fourth aspect, a method is described. The method may be applied at a terminal side, for example, a terminal (e.g., user equipment (UE) ) or a module in a terminal, a circuit or a chip (for example, a modem chip, also referred to as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip that includes a modem core responsible for a communication function in a terminal. For example, the method is applied to a terminal. In this method, the terminal receives configuration information, where the configuration information indicates at least one set of carriers associated with one or more sets of reference signals, each of the set of carriers includes one or more carriers, and the each of the set of carriers is associated with at least one public land mobile network (PLMN) ; and the terminal receives the at least one set of reference signals.
[0036] According to a fifth aspect, a method may be applied to a network side, for example, a location server (e.g., a network node) or a component (for example, a circuit, a chip, or a chip system) in a location server on a network side. For example, the method is applied to a location server. In the method, the location server generates configuration information, where the configuration information indicates at least one set of carriers associated with one or more sets of reference signals, each of the set of carriers comprises one or more carriers, and the each of the set of carriers is associated with at least one public land mobile network (PLMN) ; and the location server transmits the configuration information.
[0037] According to the above solution, there may be a set of carriers associated with multiple PLMNs. That is, a set of carriers may be shared by multiple operators, and the multiple operators may serve the same terminal.
[0038] According to a sixth 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 using software, may be implemented by using hardware, or may be implemented by using software in combination with hardware.
[0039] According to a seventh 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 using software, may be implemented by using hardware, or may be implemented by using software in combination with hardware.
[0040] According to an eighth aspect, a communication apparatus is described. The communication apparatus has a function of implementing the third aspect. For example, the communication apparatus includes a corresponding module, unit, or means for performing operations in the third aspect. The module, unit, or means may be specifically implemented using software, may be implemented by using hardware, or may be implemented by using software in combination with hardware.
[0041] According to a ninth aspect, a communication apparatus is described. The communication apparatus has a function of implementing the fourth aspect. For example, the communication apparatus includes a corresponding module, unit, or means for performing operations in the fourth aspect. The module, unit, or means may be specifically implemented using software, may be implemented by using hardware, or may be implemented by using software in combination with hardware.
[0042] According to a tenth aspect, a communication apparatus is described. The communication apparatus has a function of implementing the fifth aspect. For example, the communication apparatus includes a corresponding module, unit, or means for performing operations in the fifth aspect. The module, unit, or means may be specifically implemented using software, may be implemented by using hardware, or may be implemented by using software in combination with hardware.
[0043] According to an eleventh aspect, another communication apparatus is described. The communication apparatus includes a memory and one or more processors. The memory is configured to store part or all of a necessary computer program or instructions for implementing a function in the first aspect or the fourth aspect. One or more processors may execute the computer program or the instructions, and when the computer program or the instructions are executed, the communication apparatus is enabled to implement the method in any possible design or implementation of the first aspect or the fourth aspect.
[0044] In some implementations, 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.
[0045] In some implementations, the communication apparatus may further include a memory.
[0046] 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.
[0047] According to a twelfth aspect, another communication apparatus is described. The communication apparatus includes a memory and one or more processors. The memory is configured to store part or all of a necessary computer program or instructions for implementing a function in the second aspect, the third aspect or the fifth aspect. One or more processors may execute the computer program or the instructions, and when the computer program or the instructions are executed, the communication apparatus is enabled to implement the method in any possible design or implementation of the second aspect.
[0048] In some implementations, 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.
[0049] In some implementations, the communication apparatus may further include a memory.
[0050] The communication apparatus may be a location server, a module in a location server, or a chip responsible for a communication function in a location server, for example, a modem chip (also referred to as a baseband chip) or an SoC chip or a SIP chip that includes a modem module.
[0051] According to a thirteenth aspect, a communication system is described. The communication system includes a first communication apparatus and / or a second communication apparatus, the first communication apparatus is configured to perform the method in any possible implementation of the first aspect, and the second communication apparatus is configured to perform the method in any possible implementation of the second aspect.
[0052] According to the thirteenth aspect, in a possible design, the communication system further includes a third communication apparatus, and the third communication apparatus is configured to perform the method in any possible implementation of the third aspect.
[0053] According to a fourteenth aspect, a communication system is described. The communication system includes a first communication apparatus and / or a second communication apparatus, the first communication apparatus is configured to perform the method in any possible implementation of the fourth aspect, and the second communication apparatus is configured to perform the method in any possible implementation of the fifth aspect.
[0054] According to a fifteenth 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, the second, the third, the fourth, or the fifth aspect.
[0055] According to a sixteenth 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, the second, the third, the fourth, or the fifth aspect.
[0056] According to a seventeenth aspect, this application provides a system comprising at least one of an apparatus in (or at) a terminal of the present application, or an apparatus in (or at) a network node of the present application.
[0057] According to an eighteenth aspect, this application provides a method performed by a system comprising at least one of an apparatus in (or at) a terminal of the present application, and an apparatus in (or at) a network node of the present application.
[0058] This application encompasses various embodiments, including not only method embodiments, but also other embodiments such as apparatus embodiments and embodiments related to non-transitory computer readable storage media. Embodiments may incorporate, individually or in combinations, the features disclosed herein.DESCRIPTION OF DRAWINGS
[0059] FIG. 1 is a schematic diagram of an application scenario according to this application;
[0060] FIG. 2 illustrates an example communications system 100;
[0061] FIG. 3 illustrates another example of an ED and a base station;
[0062] FIG. 4 illustrates units or modules in a device;
[0063] FIG. 5 illustrates an example of an apparatus 410;
[0064] FIG. 6 illustrates an example of a communication system according to embodiments of this application;
[0065] FIG. 7 is a schematic flowchart of a communication method according to an embodiment of this application;
[0066] FIG. 8 illustrates a schematic diagram of Uni-Cs according to embodiments of this application;
[0067] FIG. 9 illustrates a schematic diagram of Uni-Cs shared by multiple operators according to embodiments of this application;
[0068] FIG. 10 illustrates a schematic diagram of an anchor CC and initial CC according to embodiments of this application;
[0069] FIG. 11 illustrates a schematic diagram of Port index according to embodiments of this application;
[0070] FIG. 12 illustrates a schematic diagram of beam numbers associated with the serving CC according to embodiments of this application;
[0071] FIG. 13 illustrates a schematic diagram of transmit power according to embodiment of this application.
[0072] FIG. 14 illustrates a schematic diagram of QCL relation according to embodiments of this application;
[0073] FIG. 15 illustrates a schematic diagram of uplink report according to embodiments of this application;
[0074] FIG. 16 illustrates a schematic diagram of multi-level configuring procedure according to embodiments of this application; and
[0075] FIG. 17 illustrates a schematic diagram of multi-level configuring procedure according to embodiments of this application.DESCRIPTION OF EMBODIMENTS
[0076] The following describes technical solutions of the present application with reference to the accompanying drawings.
[0077] 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.
[0078] 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.
[0079] 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.
[0080] 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.
[0081] 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 170a, 170b 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.
[0082] 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.
[0083] 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.
[0084] 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 a user equipment) . 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.
[0085] 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.
[0086] 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.
[0087] 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 endpoint that 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.
[0088] 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.
[0089] 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.
[0090] 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 of more of: connection availability and connection necessity.
[0091] 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.
[0092] 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.
[0093] 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.
[0094] 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) .
[0095] 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.
[0096] 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) .
[0097] 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 an electronic 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.
[0098] 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 single antenna 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.
[0099] 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.
[0100] 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.
[0101] 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.
[0102] 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.
[0103] 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) .
[0104] 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.
[0105] 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.
[0106] 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.
[0107] 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.
[0108] 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 and the memory 258 may be implemented as part of the processor 260.
[0109] 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.
[0110] The apparatus 320 and / or the apparatus 310 may include other components, not shown or described herein for the sake of clarity.
[0111] 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.
[0112] 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.
[0113] 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.
[0114] 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 embodiments 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 times for the one or more processors 411 to perform related operations in the method embodiments 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 another apparatus or system, such as a radio frequency processing apparatus or another processor. The signal may include or carry information intended as a payload, such as user data, control information, etc. The signal may also include or carry information useful to a receiver, but not necessarily as a payload, such as a pilot signal or reference signal. Communicating the signal may include transmitting the signal to another component or device. Communicating the signal may additionally or alternatively include receiving the signal from another component or device. Transmitting the signal may include outputting the signal to a component or device that is directly or indirectly coupled to the interface circuit 412. Receiving the signal may include inputting or obtaining the signal from a component or device that is directly or indirectly coupled to the interface circuit 412. 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.
[0115] 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) .
[0116] FIG. 5 illustrates example apparatus 510 according to an implementation 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.
[0117] 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.
[0118] 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.
[0119] 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 system on chip (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.
[0120] 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 system on chip (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.
[0121] 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.
[0122] 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.
[0123] 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.
[0124] 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) .
[0125] 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 embodiments 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 embodiments disclosed herein.
[0126] In a wireless system, a UE gets access to the network by searching for DL synchronization channel first. After it is synchronized on downlink, it could get essential system information from a master information block (MIB) and a system information block (SIB) . It could also get synchronized with network on uplink by going through a random access channel (RACH) procedure. After synchronization on both links are completed, it could set up connection with the network at different levels and start to communicate with the network.
[0127] To enhance both capacity and coverage, one effective solution is to utilize more frequency resources. In 4G LTE more frequency resources are introduced / utilized in the form of carrier aggregation (CA) in the same or neighbor frequency band (s) . In 5G NR, more frequency resources in different frequency range (FR) are also exploited including FR1 (sub-6G Hz) and FR2 (24.25 GHz to 71.0 GHz) . In future wireless system, this trend could continue. With more frequency resources are available to be exploited and utilized, how to manage them become a very critical and practical issue. The conventional carrier aggregation (CA) may not go beyond different frequency band and large number of frequency bands in different FRs would also need a more unified way to manage.
[0128] In 5G NR and earlier wireless system, an area covered by a base station is denoted as a cell and has a cell ID associated with it, and if multiple carriers are also supported in this case, each carrier could be denoted as a separate cell as well and have separate cell ID associated with each of the carrier (as each carrier is separate in frequency domain) . Conventional cellular system provides good solution for wireless communication such that frequency reuse, interference mitigation can be utilized. However, it has some drawbacks that need to be overcome. One of them is the handover (HO) , namely, when UE moves from one cell to the other, it needs HO procedure to hand over the UE from one cell to the other, which may take longer time and incur more latency. In 5G NR system, UE centric no cell (UCNC) concept is considered by some companies but most companies are not clear about its benefits. In the end, some of the mechanism on UCNC was specified but there still exists ambiguity and gap for a complete solution. For example, in Rel-18 low-layer trigger mobility (LTM) is introduced for node switch at lower layer which will reduce the HO latency. However, overall cell concept is still used.
[0129] In future wireless system, the system could be more hybrid and comprise different types of TP nodes including both base station and TRP (either a remote antenna head or a simple transmit / receive point) . Also, the function of each TP could be different, some for coverage enhancement and some for capacity enhancement, the coverage of each TP could be overlapped as well. More component carriers (CC) could also be used to expand the frequency bandwidth. From the energy saving perspective, certain TP could be turn on / off and such behaviors could be quite dynamic to save both network and UE energy without sacrificing the performance. More latency sensitive application also requires more smooth and continuous service even when UE moves around in the system, which makes the conventional HO difficult to handle.
[0130] Notably, in some implementations, the network nodes (e.g., network node 170a, 170b illustrated in FIG. 2) or one or more units / modules of the network nodes that implement the functions may be generally referred to as TPs. The EDs (e.g., ED 110 illustrated in FIG. 2) may be generally referred to as UE. The TPs and UEs may be known by different names. This is not limited to this application.
[0131] Before introducing the communication method provided by this application, additional concepts and terms are defined to ensure a clearer understanding.
[0132] 1) physical resources
[0133] The physical resources may be generally described through at least one of the following dimensions: time dimension, frequency dimension, or spatial dimension.
[0134] The time dimension could be represented by one or more time domain resource units. A time domain resource unit may include, but is not limited to, a symbol, an orthogonal frequency division multiplexing (OFDM) symbol, and a slot. In some embodiments, the time domain unit may be represented by a symbol index, an OFDM symbol index, or a slot index.
[0135] The frequency dimension could be represented by one or more frequency domain resource units. A frequency domain resource unit may include, but is not limited to, a subcarrier, or a subband. In some embodiments, the frequency domain unit may be represented by a subcarrier index, or a subband index. In some embodiments, the frequency domain unit may also be represented by a resource element (RE) index, a resource block (RB) index, or a resource block group (RBG) index. An RE consists of a symbol in a time domain and a subcarrier in a frequency domain, and an RE index could be used to indicate a position of a subcarrier. An RB consists of a slot in the time domain and 12 consecutive subcarriers in the frequency domain. An RB index could be used to indicate positions of 12 subcarriers. An RBG consists of a group of RBs, and an RBG index could be used to indicate positions of a group of subcarriers.
[0136] The spatial dimension could be represented by one or more spatial domain resource units. A spatial domain resource unit may be represented by an antenna port. In the embodiments of this application, an antenna port may be a Tx antenna. The antenna port may be identified by an antenna port index.
[0137] 2) centric-cell free (UC-CF) (also known as UE centric no cell (UCNC) communication system
[0138] The detailed description set forth below in connection with FIG. 6 is intended as a description of another exemplary communication system to which the method embodiments can be applied. It can be called a communication system that is UC-CF or UCNC.
[0139] For the first and most important level, the core idea of UC-CF (UE centric cell free) is given below:
[0140] In some implementations, various types of links are designed in the UC-CF system. In some instances, the data link and control link may be decoupled. For example, for a network node with large coverage area, a control link may be configured between the network node and UE. Thus, control signaling can be transmitted reliably. For another example, for a network with large capacity, a data link may be configured between the network node and UE. In some other instances, a link (which may be referred to as a data-control link) may be configured between a network node and UE, to carry both the control signaling and data signaling. This is not limited to this application.
[0141] Notably, a control link may carry downlink signaling, uplink signaling, or both the downlink signaling and uplink signaling. A data link may carry downlink signaling, uplink signaling, or both the downlink signaling and uplink signaling. Similarly, although not illustrated, a data-control link may carry downlink signaling, uplink signaling, or both the downlink signaling and uplink signaling. This is not limited to this application.
[0142] As shown in FIG. 6, there are 7 TPs (represented by TP#0-6) and 4 UEs (represented by UE#1-4) as examples. The 7 TPs (e.g., TPs may include TRPs and BSs) may have different forms, which may include two Macro base stations (e.g., TP#0 and TP#6) while the others are small stations. In some implementations, the UE can use TP IDs to differentiate them, or use higher layer configured IDs to differentiate them. The Macro BS may have good coverage, so the UL link or DL control link can be sent through the Macro (Main servicing TRP) BS, as shown in FIG. 6 with control link to ensure the robustness. The other TPs may be small stations, for the other links (e.g., data links) , like PDSCH, the UE can receive signals from the small stations. In addition, the link between DL and UL may also be transmitted to different TRPs, different Macro BS, or different small stations. As shown in FIG. 6, one UE (in the middle, e.g., UE#2) can receive and transmit the DL / UL PDSCH / PUSCH through the small station near it (e.g., TP#2) . It could also transmit the uplink signals to the small station (e.g., TP#3) on the right.
[0143] Notably, since a UE may require multiple types of links (e.g., data link, control link, data-control link, etc. ) , different types of links in UC-CF system may be associated with the same or different TPs. In other words, a UE may be served by multiple TPs. A cell-based configuration procedure may not have a good performance.
[0144] In such communication system, power saving technologies can be applied to the network side. For example, a TP may support at least one power saving mode. A network node in a power saving mode can turn off some functions (e.g., reduce the bandwidth allocation, etc. ) to reduce power consumption. A power saving mode may be known by different names, for example, a power off mode, a sleep mode, an idle mode, and an inactive mode, etc. They may be generally referred to as power saving mode in this context. This is not limited to this application.
[0145] 3) power saving mode
[0146] In some implementations, a network node may support various types of power saving mode. A network node in different types of power saving mode may support different functions. There are two types of power saving modes illustrated in FIG. 6.
[0147] Still referring to FIG. 6, while the above features (e.g., data links, control links) are enabled, the BS could be able to power off or sleep for a while. The power-off level or sleep level could be two different types of power-saving modes. For example, power off may mean a total power-off for some hours. As an example, the BS (e.g., the TP#4, TP#5) found that the service from other TRPs (e.g., the TP#3 and TP#6) could fully fill the need of UEs (e.g., the UE#3 and UE#4) . Another kind of level is sleep level, which means that the BS could fall asleep for a while, like several minutes. As an example, the BS (e.g., the TP#1) may find that the Service at the moment can full-fill the need of the UEs (e.g., UE#1) . As shown in FIG. 6, the two TRPs (TP#4 and TP#5) in the right hand of the figure are powered off, as the control channel can be done by the Macro BS (TP#6) , and the UEs in the field is with small numbers of activated, so Two of all TRPs can choose to power-off for power saving.
[0148] Notably, when a network node enters a power saving mode, it causes the change of communication between the UE and the network side. The change of network nodes is a complicated procedure in conventional communication system.
[0149] 4) anchor carrier, initial access carrier and serving carrier
[0150] An anchor carrier may be set up to carry specific signaling (e.g., control signaling) or provide specific services (e.g., recovering connection from interrupting) . In some instances, an anchor carrier may be a low-frequency carrier, such as 2.6GHz, so that the anchor carrier generally has good coverage. Therefore, the anchor carrier can guarantee the reliable transmission of signaling, and UE may always access the anchor carrier.
[0151] An initial access carrier may be a carrier to which the UE initially accesses (or initial attaches) .
[0152] A serving carrier may be set up to carry specific signaling (e.g., data) . In some instances, a serving carrier may have good capacity, so that a large amount of data can be carried in the serving carrier.
[0153] Notably, the anchor carrier, initial access carrier, and serving carrier may be the same carrier or different carriers. For example, the anchor carrier and the initial access carrier may be the same carrier, and the serving carrier is another carrier. Since the anchor carrier may be the most guaranteed carrier, the UE can access the anchor carrier first when it initially accesses, or wakes up from sleep mode, or recovers from interruption. The UE may then be configured by the network side to other carriers for further connection after the connection is established with the anchor CC. This avoids reconnecting in a huge number of carriers, which may take a long time. This is not limited to this application.
[0154] In UC-CF system, in some implementations, a network node may be associated with one or more carriers, and it could use these carriers to serve UE. In some instances, a network node (e.g., TP#0 and TP#1 illustrated in FIG. 6) may be associated with at least one anchor carrier and at least one serving carrier. This is not limited to this application.
[0155] In 5G NR, the information and instructions for measurement and reporting are signaled by the physical cell on which the UE is camped.
[0156] Even though CA was introduced and supported since 4G LTE, it is limited by frequency band (s) as only carries in the same or neighboring frequency bands can be aggregated. In 5G NR Rel-18, the LTM is introduced and specified, however, the overall cell layout is still in the specification and early UE still needs to be bounded by cell layout and not get benefits from this lower layer triggered mobility. In future wireless system, with more and more frequency resources needs to be exploited and support together, and with more hybrid system deployed, and with more stringent requirement on power saving to be met, a more unified solution needs to be introduced for carrier management and TP resource managements.
[0157] Notably, the above presents a simplified description of some related technologies to provide a basic understanding. The various concepts presented throughout this disclosure may be implemented across a broad variety of telecommunication systems, network architectures, and communication standards. The actual telecommunication standard, network architecture, and / or communication standard used will depend on the specific application and the overall design constraints imposed on the system.
[0158] In order to make full use of increasing network node resources, a flexible network node resource management method, which is different from a cell-based method, needs to be proposed. The network node resource management method may involve UE’s capability, measurement configuring and measurement, and more specifically, a method for measurement configuring is proposed in this application.
[0159] The method can be applied to various types of communication systems (e.g., any one of communication system described in FIGs. 1 to 6) . For a terminal side, the method can be applied to a terminal (e.g., UE) or a module in a UE, a circuit or a chip (for example, a modem chip, also referred to as a baseband chip, or a SoC chip or a SIP chip that includes a modem core responsible for a communication function) in a UE. In the examples set forth below, the method can be applied to a UE on terminal side. For a network side, a location server (e.g., a network node) or a component (for example, a circuit, a chip, or a chip system) in a location server on a network side. In the examples set forth below, the method can be applied to at least one network node on network side.
[0160] FIG. 7 is a schematic flowchart of a communication method according to an embodiment of this application.
[0161] At step 710, a UE receives configuration information, where the configuration information indicates sets of reference signals. The sets of reference signals are respectively associated with the sets of physical resources. The sets of reference signals are associated with two or more network nodes, each of the sets of reference signals includes one or more reference signals, and each of the sets of physical resources comprises one or more physical resources. A time resource within each of the sets of physical resources partially or fully overlap.
[0162] At step 720, the UE receives the sets of reference signals based on the configuration information.
[0163] In this application, the network side may schedule sets of physical resources for the terminal to receive sets of reference signals. The sets of physical resources are associated with two or more network nodes, that is, the network side can schedule two or more network nodes to serve the UE, making full use of network node resources. A time resource within each of the sets of physical resources partially or fully overlap, that is, the time resource can be shared by the sets of reference signals, making full use of time resources. The UE receives the sets of reference signals that are mapped on the sets of physical resources, improving the utilization of resources. In addition, when the network side schedules two or more network nodes to serve the UE, a network node can enter a power saving mode without UE being disconnected from the network.
[0164] In some implementations, each of the two or more network nodes is associated with at least one of the sets of reference signals. Each network node can transmit at least one set of reference signals to the UE. The UE can receive the sets of reference signals from two or more network nodes, the network node resources can be utilized. For example, network node#1 and network node#2 are associated with reference signal set#a, reference signal set#b and reference signal set#c. The network node#1 may transmit the reference signal set#a and the reference signal set#b to the UE, and the network node#2 may transmit the reference signal set#c to the UE.
[0165] Notably, the terms “a set of reference signals” and “a reference signal set” may be used interchangeably in different embodiments of this application.
[0166] The set of two or more network nodes may include various types of network nodes, for example, a network node responsible for control link (e.g., TP#0, TP#6 described in FIG. 6) , a network node responsible for data link (e.g., TP#2, TP#3 described in FIG. 6) , a network node responsible for uplink, a network node responsible for downlink, a network node responsible for both downlink and uplink, etc. This is not limited to this application.
[0167] Notably, due to the flexibility between the network nodes, the network node who transmits the configuration information and the network nodes who transmit the sets of reference can be the same or different. Therefore, in embodiments of this application, the term “network side” is used to generally refer to one or more network nodes. The specific network node is depended on the specific actions performed by the network side and the application scenarios. This is not limited to this application.
[0168] In some implementations, one or more sets of carriers may be defined. Each set of carriers may include one or more carriers. A carrier in a set of carriers may be also referred to as a component carrier (CC) or other similar expressions. A set of carriers may be also referred to as a group of carriers, a group of CCs, a union carrier (Uni-C) , a union CC (Uni-CC) or other similar expressions. Correspondingly, in some examples, without limitation, an ID of a carrier may be represented by a CC ID, and an ID of a set of carriers may be represented by Uni-C ID, Uni-CC ID or other expressions. Exemplary, a Uni-C#1 may be with an index of Uni-C ID1, a Uni-C#2 may be with an index of Uni-C ID2 and a Uni-C#3 may be with an index of Uni-C ID3.
[0169] A Uni-C may include various types of carriers. In some instances, a Uni-C consists of a set (group) of CCs, and may be formed from one or more CCs from one or more spectrum ranges, e.g., frequency range (FR) 1, FR2, FR3, etc. For example, in 5G new radio (NR) , different frequency ranges have been defined such as FR1 and FR2, where FR1 defines frequency range of 410 MHz to 7125 MHz, and this is often referred to as "sub-6 GHz" range; FR2 defines frequency range of 24.25 GHz to 52.6 GHz, and this is often referred to as "mmWave" range. In future network, a mid-band frequency range may be proposed with spectrum spanning from 7 GHz to 15 GHz, and this may be referred to as centimeter wave or “cmWave” range. As a result, one or more Uni-Cs can be defined or configured based on CCs from FR1, FR2 and FR3. For example, CCs in each FR may form one Uni-C; CCs in neighbor FRs may form one Uni-C.
[0170] For example, FIG. 8 illustrates a schematic diagram of Uni-Cs according to embodiments of this application. For example, the communication system may define Uni-C#1, Uni-C#2 and Uni-C#3, where CCs in Uni-C#1 are located in FR1, CCs in Uni-C#2 are located in FR2, and CCs in Uni-C#3 are located in FR3. In these instances, a Uni-C may be identified by the identifier of the corresponding FR. In some other instances, although not illustrated, a Uni-C may include CCs located in different FRs, this is not limited to this application.
[0171] In order to further manage the frequency band and use the diversity of different operators, and enable better manage and power saving, such solutions are proposed below:
[0172] A unified carrier (Uni-C) may comprise all CCs or part of CCs from one frequency range. In FIG. 8, there are three frequency ranges: FR1, FR3, and FR2, where FR1 may include k CCs, identified by cci, i=1, 2, …, k (or alternatively, indexed from 0, 1, …, k-1) , FR3 may include m CCs, identified by ccj, j=1, 2, …, m (or alternatively, indexed from 0, 1, …, m-1) , and FR2 may include n CCs, identified by ccl, l=1, 2, …, n (or alternatively, indexed from 0, 1, …, n-1) , where k, m and n are positive integers. CCs in each FR may form one unified carrier, identified by Uni-C1, Uni-C2 and Uni-C3, respectively.
[0173] It is noted that CCs in one FR may form one or more unified carriers. In some implementations, one unified carrier may consist of CCs from one or more FRs.
[0174] In some implementations, each of the at least one set of carriers is associated with at least one public land mobile network (PLMN) . There may be a set of carriers associated with multiple PLMNs. That is, a set of carriers may be shared by multiple operators, where an operator may be assigned / associated with a PLMN, and the multiple operators may serve the terminal simultaneously.
[0175] CCs in one Uni-C may be used for at least one of shared carriers or dedicated carriers (e.g., operator specific) . In some implementations, one or more Uni-Cs or CCs may be used or configured for a support of communication coverage, referred to as coverage Uni-C or coverage CCs. In some implementations, one or more Uni-Cs or CCs may be used or configured for a support of communication capacity, referred to as capacity Uni-C or capacity CCs. Moreover or alternatively, coverage Uni-C can be operator specific and capacity Uni-C can be inter-operator shared.
[0176] For example, FIG. 9 illustrates a schematic diagram of Uni-Cs shared by multiple operators according to embodiments of this application.
[0177] For unified carriers and associated CCs as defined or configured above, the frequency resources may be dedicated used or shared among different operators or radio access technologies (RATs) such as 5G, future technology, etc. For example as shown in FIG. 9, part of CCs in FR1 have dedicated usages among different operators such as carrier operator 1, carrier operator 2, and other part of CCs in FR1 consists one unified carrier (identified by Uni-C1) that are shared by different (L is a positive integer, L>1) carrier operators. Moreover, all CCs in FR3 consist of another unified carrier (identified by Uni-C2) , which is used as shared resources among different (L>1) carrier operators.
[0178] In some implementations, a Uni-C may include an anchor carrier (anchor CC) . The Uni-C which includes the anchor CC may be referred to as an anchor Uni-C. In some implementations, a Uni-C may include an initial access carrier (initial access CC) . The Uni-C which includes the initial access carrier may be referred to as an initial access Uni-C. In some implementations, a Uni-C may include a serving carrier (serving CC) . The Uni-C which includes the serving CC may be referred to as a serving Uni-C.
[0179] Notably, the anchor CC, initial CC and serving CC may be included in the same Uni-C or different Uni-Cs. For example, the initial access CC is included in Uni-C#1, and the anchor CC and serving CC are included in Uni-C#2. This is not limited to this application.
[0180] For example, FIG. 10 illustrates a schematic diagram of an anchor CC and initial CC according to embodiments of this application.
[0181] So based on the information given before, we can know that Uni-Cs is a concept of sets of carriers, each Uni-C has its own ID, different Operator has its own Uni-C. In some instances, there may be some shared Uni-Cs be used for different Operators. When a UE powers on, it will find an operator through a pre-configured CC, e.g., the initial access CC in FIG. 10, then finds an anchor CC to be camped. Uni-C or CC is the resource that an operator can use to serve one UE. So different from the Cell service based 5G / 4G base station, the new service may be based on TP ID, CC ID and / or Uni-C ID given by the operator. One Uni-C maybe the set of a frequency Carriers, like FR1 FR2, or it can represent the Carriers one operator can use. Like some CCs in FR1, some CCs in FR2. So it is not limited by one physically deployed base station. It can schedule all the resources it has to serve one UE. Even other operators’ CC (shared) , it has opportunity to use it.
[0182] In some implementations, a frequency resource allocation may be provided by an indication comprising at least one Uni-C ID and one or more CC IDs associated with the Uni-C, or more comprehensively, by an indication of at least one Freq-ID where an Freq-ID indicates a Uni-C ID, one or more CC IDs, bandwidth part (BWP) , and (optionally) a number of RBGs or RBs.
[0183] As aforementioned, there may be a plurality of network nodes and / or carriers available for UE. Therefore, the UE can be scheduled based on network nodes and / or carriers, rather than fixed access to a certain cell (all scheduling is based on the certain cell) .
[0184] In some implementations, each network node may be associated with at least one set of carriers (Uni-C) . A network node can use its associated set of carriers to communicate with UE. For example, the network node#1 is associated with the Uni-C#1, the network node#2 is associated with the Uni-C#2, and the network node#3 is associated with the Uni-C#3. For another example, the network node#1 is associated with the Uni-C#1 and Uni-C#2, the network node#2 is associated with the Uni-C#1 and Uni-C#3, and the network node#1 is associated with the Uni-C#1, Uni-C#2 and Uni-C#3. This is not limited to this application.
[0185] The association relationship between the network nodes and the sets of carriers may be pre-defined or pre-configured. In embodiments of this application, pre-defined or pre-configured may refer to a pre-defined in the standard, or is derived from related code, table, function, text, string or a combination thereof.
[0186] In some implementations, a network node associated with an anchor Uni-C (anchor CC) may be referred to as an anchor network node. A network node associated with an initial access Uni-C (initial access CC) may be referred to as an initial access network node. A network node associated with a serving Uni-C (serving CC) may be referred to a serving network node.
[0187] Still referring to FIG. 7, as aforementioned, sets of reference signals are respectively associated with sets of physical resources, and each set of reference signals can be mapped on (be transmitted using) its associated set of physical resources. Each set of reference signals include one or more reference signals, each set of physical resources may include one or more resource units, and each reference signal may be mapped on a resource unit. A resource unit may be various granularity. For example, the resource unit in a time domain (i.e., a time unit) may be a symbol, a slot or other defined time duration. The resource unit in a frequency domain may be subcarrier, a carrier or other defined frequency units. For example, reference signal set#a includes reference signal#a1, reference signal#a2, reference signal#a3 and reference signal#a4. The set of reference signal associated with reference signal set#a includes resource unit#a1, resource unit#a2, resource unit#a3 and resource unit#a4. Reference signal#a1 is mapped on resource unit#a1, reference signal#a2 is mapped on resource unit#a2, reference signal#a3 is mapped resource unit#a3 and reference signal#a4 is mapped on resource unit#a4. Notably, a set of physical resources in a time domain may be referred to as a time resource. For example, when a resource unit in the time domain is a symbol, a time resource may include symbol#a1, symbol#a2, symbol#a3 and symbol#a4.
[0188] A time resource within each of the sets of physical resources partially or fully overlap, and the sets of reference signals are respectively associated with the sets of physical resources. In other words, at least two of the sets of reference signals are for simultaneous transmission. The simultaneous transmission in this application may refer to at least two of the sets of reference signals to share at least one time unit (symbol is taken as an example) . For example, reference signal set#a may be mapped on (transmitted using) symbol#1, symbol#2, symbol#3 and symbol#4, and reference signal set#b may be mapped on (transmitted using) symbol#1 and symbol#2. Notably, the overlapped sets of reference signals may be associated with the same network node or different network nodes. For example, the network node#1 may transmit reference signal set#a and reference signal set#b simultaneously. For another example, the network node#1 may transmit reference signal set#a and the network node#2 may transmit reference signal set#b simultaneously. This is not limited to this application.
[0189] The sets of reference signals may be associated with various of parameters, such as parameters related to network nodes, parameters in a frequency domain, parameters in a time domain, parameters in a spatial domain, parameters related to measurement report, etc.
[0190] In some implementations, each of the sets of reference signals may correspond to a network node of the two or more network nodes. In other words, each of the sets of physical resources may correspond to a network node of the two or more network nodes. The network side may allocate sets of physical resources for each network node. For example, the network side may allocate physical resource set#a and physical resource set#b to the network node#1 and allocate physical resource set#c to the network node#2. So that the network node#1 may transmit reference signal set#a and reference signal set#b using physical resource set#a and physical resource set#b to the UE, and the network node#2 may transmit reference signal set#c using physical resource set#c to the UE.
[0191] The configuration information may indicate the two or more network nodes associated with the sets of reference signals, so that the UE could know from which network nodes to receive the reference signals. In some implementations, the configuration information may indicate two or more identifiers of the two or more network nodes. As aforementioned, each network node may be assigned / associated with a unique identifier (ID) . The configuration information may include IDs of the two or more network nodes.
[0192] Notably, in embodiments of this application, the terms “identifier (ID) ” and terms “index” may be used interchangeably.
[0193] In some instances, an ID of a network node may be pre-defined or pre-configured. Notably, an ID of a network node may be denoted as TP ID, network ID, high layer configured ID, and etc. These names are only for illustrative purpose and do not limit a type of the network node. For illustrative purpose, Table 1 is given as an example of indexes of TPs.
[0194] Table 1
[0195] In some implementations, the configuration information may indicate an identifier corresponding to a set of the two or more network nodes. The two or more network nodes may be pre-defined or pre-configured into a set. The set may be assigned / associated with an identifier, so that the network side can indicate the identifier of the set, reducing resource consumption of the configuration information. For example, the sets of reference signals may be associated with TP1, TP2 and TP3, and a set of network nodes including the TP1, TP2 and TP3 may be assigned / associated with an identifier (or an index) . The identifier (or the index) of the set may be associated with IDs of network nodes that the set includes.
[0196] In some implementations, as aforementioned, each of the two or more network nodes is associated with at least one set of carriers (Uni-Cs) . The configuration information may indicate at least one set of carriers associated with the two or more network nodes. For example, a set of carriers may include one or more carriers. Each set of carriers may be associated / assigned with a unique ID. Each of one or more carriers may be associated / assigned with a unique ID.
[0197] Uni-C IDs and association relationships between the Uni-C IDs and network nodes may be predefined or preconfigured. For example, Uni-C ID1 may be associated with TP1, that is, the TP1 can communicate using one or more carriers in the Uni-C ID 1; and Uni-C ID 2 may be associated with TP2 and TP3, that is, the TP2 and TP3 can share the carriers in the Uni-C ID2 and Uni-C ID 2. When the configuration information indicates Uni-C ID 2, the UE may receive sets of reference signals from TP2 and TP3; when the configuration information indicates Uni-C ID 1 and Uni-C ID 2, the UE may receive sets of reference signals of TP1, TP2 and TP3.
[0198] The sets of reference signals may be associated with a variety of frequency parameters. In some implementations, each of the sets of reference signals may be associated with a carrier. In other words, each of the sets of physical resources is associated with a carrier. The network side may allocate sets of physical resources based on each carrier. For example, physical resource set#a is associated with the carrier#a, physical resource set#b is associated with the carrier#b, and physical resource set#c is associated with the carrier#c.
[0199] Notably, in some instances, a set of physical resource may be associated with a single network node and a single carrier. In other words, reference signals transmitted by a single network node using a single carrier may form a set of reference signals.
[0200] As aforementioned, a carrier associated with each of the sets of physical resources is included in a set of one or more carriers (Uni-Cs) . Each set of reference signals may be associated with a Uni-C.
[0201] The configuration information may indicate the sets of physical resources in a frequency domain in a variety of ways. For example, the configuration information may indicate CC IDs associated with the sets of physical resources. For example, the configuration information may indicate Uni-C IDs associated with the sets of physical resources.
[0202] The relevant index (identifier) information for CC may directly express the standard defined channel in each Uni-C. Here is an example in FR1 (e.g., FR1 is associated with Uni-C#1) . For illustrative purpose, NR operating bands in FR1 is given in Table 2. The index of Table 2 can be the subsets of the NR operating band. For example, Index 1 is associated with / assigned to n1 band CC, Index 2 is associated with / assigned to n3 band CC.
[0203] Table 2
[0204] Th sets of reference signals may be further associated with various frequency parameters (or frequency-time parameters) , such as BWP, resource block group (RBG) , resource block (RB) , start frequency, etc. These parameters may be pre-defined and / or indicated by the configuration information. This is not limited to this application.
[0205] The sets of reference signals may be associated with a variety of time parameters (or frequency-time parameters) . In some implementations, each of the sets of reference signals may be associated with one or more parameters that indicate time locations, such start symbol, symbol numbers, slot numbers, half frame index, frame index, etc. These parameters may be predefined, or indicated by the configuration information, or a combination thereof. This is not limited to this application.
[0206] For example, the detailed information associated with each CC ID: the exact time, frequency resource where the signals in each CC will send (e.g., subcarriers in each CC) . In some instances, it may include the BWP, RBGs, RBs, start frequency, start symbol, symbols / slots numbers, half frame index, frame index, etc.
[0207] For the BWP, the UE could know in the corresponding CC, where the bandwidth of the reference signals are located. The RBGs tells the real bandwidth of the reference signals. The start frequency is the start frequency position in the BWP. The start symbol is the first symbol in one slot the network side sends the reference signals to UE. The symbols / slots numbers tell how many symbols / slots the reference signals will last for measurement, for example, how many symbols or how many slots. Half frame index and frame index may tell the UE the time locations in the frame level. Based on the information, the UE could know for each CC, where to find the real transmitted reference signals for measurement.
[0208] In some implementations, the sets of reference signals may be associated with one or more transmission periodicity parameters. The transmission periodicity parameters may indicate transmission periodicity associated with a set of carriers (or Uni-C) , a set of network nodes, a carrier, a network node etc. In other words, the transmission periodicity can be designed based on a variety of granularity. For example, transmission periodicity is associated with a Uni-C, that is, sets of reference signals associated with the same Uni-C may be transmitted with the same transmission periodicity; transmission periodicity is associated with a set of network nodes, that is, sets of reference signals associated with the same set of network nodes may be transmitted with the same transmission periodicity; transmission periodicity is associated with a carrier, that is, sets of reference signals associated with the same carrier may be transmitted with the same transmission periodicity; transmission periodicity is associated with a network node, that is, sets of reference signals associated with the same network node may be transmitted with the same transmission periodicity.
[0209] The transmission periodicity parameter may be predefined, or indicated by the configuration information. In some implementations, some candidate transmission periodicity values may be predefined or preconfigured, each candidate value may be assigned / associated with an index, and the configuration information could indicate the index of a candidate transmission periodicity value.
[0210] For example, the period (transmission periodicity) of reference signals is associated with each TP (transmission periodicity associated with a TP is given as an example) . This information indicates for each TP, the period of each reference signals the network side will send. For each TP, the period may have different choices (candidate values) . So for each TP at least, the network side could choose one index for the UE. For illustrative purpose, Table 2 is given as an example of predefined or preconfigured candidate transmission periodicity values. For example, as shown in the Table 2, the network side may send a predefined or preconfigured set as {1 2 3} . The period for the TP#1 is 20ms, TP#2 is 10ms, TP#3 is 40ms, respectively.
[0211] Notably, the TP in the Table 2 may be replaced with CC, Uni-C, or set of network nodes, etc. based on application scenarios.
[0212] In some implementations, the index corresponding to the transmission periodicity may be interpreted in combination with the TP IDs. For example, the configuration information indicates TP#1, TP#2 and TP#3 with TP IDs {1, 2, 3} , transmission periodicity values with indexes {1, 2, 4} . The TP IDs and the indexes can be interpreted correspondingly. As shown in Table 2, the TP#1 may transmit a set of reference signals with transmission periodicity value 20ms (index 1 for TP#1) ; the TP#2 may transmit a set of reference signals with transmission periodicity value 10ms (index 2 for TP#2) ; and the TP#3 may transmit a set of reference signals with transmission periodicity value 60ms (index 4 for TP#3) .
[0213] In some instances, if one or more TPs are not for measurement (i.e., not transmit reference signals) , the configuration information may default not sending the period for the TPs. For example, the TP#3 is not used for measurement, the network side can send configuration information with indexed {1, 2} . This means the period for the TP1 is 20ms, TP2 is 10ms.
[0214] Table 3
[0215] A time resource within each of the sets of physical resources partially or fully overlap. Part or all of the sets of reference signals are for simultaneous transmission. In some implementations, the network side may configure sets of reference signals associated with two or more carriers to be transmitted simultaneously.
[0216] For example, the sets of reference signals include a first set of reference signals and a second set of reference signals. The first set of reference signals is associated with a first carrier, the second set of reference signals is associated with a second carrier, a time resource within a set of reference signals associated with the first set of reference signals overlaps partially or fully with a time resource within a set of reference signals associated with the second set of reference signals.
[0217] In some implementations, the network side may configure sets of reference signals associated with two or more network nodes to be transmitted simultaneously.
[0218] For example, the first set of reference signals is associated with a first network node of the set of two or more network nodes, the second set of reference signals is associated with a second network node of the set of two or more network nodes, a time resource associated with the first set of reference signals overlaps partially or fully with a time resource associated with the second set of reference signals.
[0219] The configuration information may indicate sets of reference signals for simultaneous transmission. Considering the UE capability, the UE may receive some beams, some inter-frequency signals at the same time, so the network node could let the UE know which signals are sent simultaneously. It may be Uni-C level, or CC level or beam level, which connect to CC-ID or TP ID.
[0220] In some implementations, the configuration information may indicate that sets of reference signals associated with carriers in the same Uni-C are transmitted simultaneously; or indicate that sets of reference signals associated with Uni-C#1 and Uni-C#3 are transmitted simultaneously; or indicate that sets of reference signals associated with sets of beams are transmitted simultaneously, etc.
[0221] For example, If the CCs are managed by the Uni-CC, a Table4 may be predefined or preconfigured to show the CCs in each Uni-C. The configuration information may indicate an index in the Table 3, where sets of reference signals associated with CCs associated with the index may be transmitted simultaneously.
[0222] Table 4
[0223] The sets of reference signals may be further associated with parameters that include one or more of: parameter#1 that indicates a measurement order of the two or more network nodes; parameter#2 that indicates a measurement order of a carrier within each of the sets of physical resources; parameter#3 that indicates a rule when a collision occurs on the sets of reference signals; parameter#4 that indicates antenna ports associated with the sets of reference signals; parameter#5 that indicates beams associated with the sets of reference signals; parameter#6 that indicates transmit power associated with the sets of reference signals; parameter#7 that indicates quasi co-located relationship between the sets of reference signals; parameter#8 that indicates a first network node to which measurement information to be transmitted, where the measurement information is based on the sets of reference signals; parameter#9 that indicates work duration associated with a carrier within one of the sets of physical resources; parameter#10 that indicates work duration associated with one of the two or more network nodes.
[0224] Referring to parameter#1 and parameter#2, a measurement order may refer to the priority order in which the UE measures the sets of reference signals. In some instances, the measurement order and a report order can be used interchangeably. The report order refers to the priority order in which the UE reports the measurement results of the sets of the reference signals. In some implementations, the measurement order may be based on the network nodes. For example, a network node which is closer may have higher priority. In some implementations, the measurement order may be based on the carriers. For example, an anchor carrier may have higher priority. This is not limited to this application.
[0225] The priority information (e.g., the parameter#1, the parameter#2) for measurement and / or reporting.
[0226] For example, the priority information (e.g., the parameter#1, the parameter#2) for measurement. As the UE may have some priority about QoS service or the network side may have some limitation, such as it wants to use the capacity TP / CC from the rest communication for high throughput, or, it wants to close some of the TPs for power saving, or it wants to use the shared TP / CC and full use the shared TP / CC as fast as possible. So there is a possible signal to tell the UE to measure some of the signals with priority. So this could be a subset of the aforementioned Uni-C or TP / CCs or beams information (which indicates the sets of reference signals) . With the knowledge of the priority, the UE would know to do the measurement and report as with priority and not wait for the rest of the TP / CC measurement to report. Plus, it could be a set for the index of TP / CCs or beam information and with report feedback limits for it. Such as, the UE should give feedback after the CC measurement within 20ms.
[0227] Referring to parameter#3, a rule when a collision occurs on the sets of reference signals may be predefined or indicated in a variety of ways. For example, if the number of reference signals for simultaneous transmission exceeds the capability of the UE, it would be defined as the collision occurs. The rule could allow the UE to know how to receive (process) signals when a conflict occurs. This is not limited to this application.
[0228] The inter-CC or inter-frequency transmission simultaneously considers part overlap.
[0229] For example, the parameter#3 is related to the inter-CC or inter-frequency transmission simultaneously considering part overlap. It may be an indication to show if when the TP / CC beams collision happened with part or full overlap, the network side will send the signals simultaneously or not. Even as the network side already sent the simultaneously transmission information before, but there is a possibility that the inter-CC or inter-frequency signals will meet collision as they may have different period for measurement. For example, the transmission periodicity associated with CC ID#1 is #20ms#, the transmission periodicity associated with CC ID#2 is #40ms#, some time the corresponding sets of reference signals may be transmitted at the same slot. Therefore, the UE would need to know, when this happened, which signal it should receive. For example, both signals could be received when these two signals meet collision, based on the UE capability. But if the UE has no such capability, which one it should receive need be indicated.
[0230] Referring to parameter#4, the antenna ports may be indicated. For example, when the sets of reference signals include CSI-RS, SRS, etc., the parameter#4 may indicate the CSI-RS ports, SRS ports, etc. In some instances, the antenna ports and the port index may be used interchangeably.
[0231] The parameter#4 is related to the port index for some reference signals.
[0232] For example, the parameter#4 is related to the port index for some reference signals. This may happen for signals transmitted by using CSI-RS or SRS and so on. With the information of TP / CC ID or UE-ID, it may still need the Port number to build a sequence for transmission. The Port number can’ t be defaulted because due to different UE capabilities, maybe not only one port is used for transmitting the signal. Therefore, the port index and the relevant information could be used for letting the UE know the transmitted signal information. It is a chosen value because while the transmission is using SSB, there will be no port because the port for SSB is default. But while the transmission is using CSI-RS or SRS, it will need a Port index for indicating the signals.
[0233] For example, FIG. 11 illustrates a schematic diagram of Port index according to embodiments of this application. As we can see the frequency location of different Port indexes, may have different frequency locations for the 1st Port or the 3rd Port. Apart from the frequency locations, in some implementations, a code division multiplexing (CDM) group is also related to the Port index. For example, a set of reference signals with 1st port may occupy subcarriers with indexes 2, 3, 14, 15, 26, 27, 38 and 39. A set of reference signals with the 3rd port may occupy subcarriers with indexes 4, 5, 16, 17, 28, 29, 40 and 41. The set of reference signal with the 1st port is FDM with the set of reference signals with the 3rd port.
[0234] Referring to parameter#5, each of the sets of reference signals may be associated with a set of beams. For example, reference signal set#a includes a reference signal#a1, a reference signal#a2 and a reference signal#a3. The reference signal set#a is associated with beam set#a that includes beam#a1, beam#a2 and beam#a3. That is, the reference signal#a1 is transmitted with the beam#a1, the reference signal#a2 is transmitted with the beam#a2, and the reference signal#a3 is transmitted with beam#a3.
[0235] The parameter#5 is related to beam numbers and / or beam index for each CC. In some implementations, the beam number and the beam number may be used interchangeably.
[0236] For example, the parameter#5 is related to the beam numbers and / or beam index for each CC. Considering the UE needs to do beam scanning while doing the measurement. And different from 5G with Cell, the UE would not able to know how many TPs are there to serve him (In 5G, it is limited to 2 TPs activity) . Therefore while doing measurement, the UE needs more information about which or the real part of beams the BS will schedule.
[0237] In some implementations, a beam or a reference signal may be assigned / associated with an index, which may be known as a beam index or a reference signal index. In some instances, the beam index or the reference signal index may be associated with a network node.
[0238] For example, FIG. 12 illustrates a schematic diagram of beam numbers associated with the serving CC according to embodiments of this application. In FIG. 12, the Anchor TP / CC is a coverage TP / CC, so it could be in FR1, the beams it has is very limited, e.g. only 2 beams in the FIG. 12, the network side can tell the UE that the Anchor TP / CC has 2 beams, and for beam scanning, it need to scan beam indexes 1-2 for the anchor TP / CC. Then, we can see that there are 4 beams for the serving TP / CC for the UE at the same time. Therefore the UE could scan the 4 beams for the serving TP / CC. Plus, the network side could also tell the UE in the 4 beams, which of the 4 beams will be used for transmission to UE. For example, in the 4 beams, only indexes 1-2 beams will be used to transmit to UE, as the network side may know the location of the UE, and it can use the relevant beams to service the UE.
[0239] Referring to parameter#6, in some implementations, each TP, CC, or Uni-C may be associated with a transmit power. For illustrative purpose, transmit power designed for each TP (each TP is associated with a Uni-C) is given as an example.
[0240] Parameter#6 may be related to the transmit power offset from different Uni-Cs.
[0241] For example, we further consider the transmit power offset from different Uni-Cs. This is for different TPs with different Uni-Cs, they may have different power constraints as one may be located in FR1 and the other is located in FR2. The transmission limitation is different for Uni-C#1 and Uni-C#2. Apart from this, while transmission, there is another possible reason for the TP to transmit in different power, for example, for power saving cases or other reasons.
[0242] For example, FIG. 13 illustrates a schematic diagram of transmit power according to embodiment of this application. As we can see the FIG. 13, there are 3 TPs (associated with three CCs) to transmit signals, as we set the anchor CC as CC#1 and we assume the UE is connected to CC#1. So the transmit power of Tx could be known at the UE side, as it may do access to the anchor TP / CC. We can assume that the transmit power of the Anchor CC is 23dBm. Then the UE also needs to receive the signals from TP#2 and TP#3 for more measurement, before the UE receives the measurement signals, if the UE can know the detailed transmit power of the TP (or Uni-C) , it would be very helpful for the UE to calculate the more accurate pathloss for the UE. For example, if the UE knows there is 30dB power offset for TP2 compared with TP1, it would know that the transmit power of TP2 is 23+30=53dBm, then, when the UE receives the signal from TP2, it would calculate the signal power more clearly. If the information is not told by the network side, the UE may assume that the TRP sends the signals with full power by default.
[0243] Referring to parameter#7, one or more QCL relationships may be indicated.
[0244] Parameter#7 is related to QCL relation (TCI state information) possibly with the serving CC or anchor CC. The UE can use other DMRS with QCL relation to do the measurement.
[0245] For example, the parameter#7 is related to the QCL relation for measurement. Due to a lot of measurement may be needed for the UE, in order to shorten the period of measurement, and for power saving, the QCL relation if it could be used would greatly help the UE if the UE has already done some parts of measurement through other channels or other signals.
[0246] For example, FIG. 14 illustrates a schematic diagram of QCL relation according to embodiments of this application. There is a QCL relation between the Anchor TP / CC CSI-RS and the last PDSCH of it. The QCL relation could be Type-D or others. If the UE knows that there is QCL type D relation with CSI-RS and last time PDSCH, it can use the last time PDSCH DMRS testing channel to represent the CSI-RS channel measurement, which means it will not need to test the CSI-RS. Therefore, it will help the UE to reduce the measurement and get power saving.
[0247] The biggest possible new QCL relation is near-CC QCL relation, like a pre-configured CC set, the SSB / CSI-RS of a given beam index is QCL-typeD. This means if the UE knows that some TP / CC sets are QCL related, the UE could choose one TP / CC to do spatial measurement, and the rest TP / CC may have the same beam direction as other CCs. So the rest CC does not need to do beam scanning, which could save a lot of time. It also could be a pre-configured TP / CC IDs QCL relation, or TRP level QCL relation. As there will be a possible TRP level.
[0248] Referring to parameter#8, in some implementations, at step 710, the UE may receive the configuration information from a network node#1. However, the UE may transmit measurement information to the network node#1, or it may transmit the configuration information to another network node (or other network nodes) . For ease of description, the one or more network nodes to which the configuration information is transmitted is referred to as a first network node. When the first network node and the network node#1 are not the same network node, the first network node may be pre-defined based on the application scenario; or be determined by the UE as a function of parameters that are known by the UE; or be indicated by the configuration information; or a combination thereof. This is not limited to this application. For example, the UE measures (receives) sets of reference signals from two or more network nodes, the UE transmits the corresponding measurement result to the each of the two or more network nodes. For another example, the UE may transmit the measurement information to a network node that is responsible for the uplink.
[0249] Parameter#8 may be related to the report CC information.
[0250] For example, FIG. 15 illustrates a schematic diagram of uplink report according to embodiments of this application. Now we will talk a little more about the channel the signaling goes through. There are two kinds of CC the signals go through. The network side (operator A) can give its configuration information to the UE by anchor TP / CC sent by the first TP, or the serving TP / CC from second TP. As an example, referring back to step 710, the first TP or the second TP transmit the configuration information to the UE. Referring to back step 720, the first TP and the second TP transmit sets of reference signals to the UE. This is not limited to this application.
[0251] Then, the UL link for UE reporting the measurement result can be based on the TP / CC indicated by the network side. One choice for the UL link for reporting could be the same as anchor TP / CC or serving TP / CC through TP#1 or TP#2. It could also be a possible UL anchor / serving TP / CC indicated by the network side (operator A) .
[0252] The reason for having these choices is because for DL, different CCs have different requests. For example, the DL signaling goes through the serving TP / CC is good for scheduling for the next overall measurement scheduling. Meanwhile, the anchor TP / CC is with good coverage and reliability, so the DL signaling goes through the anchor TP / CC can keep a good performance. The UL anchor / serving TP / CC is also for the reason, they may be located in different frequencies and different TPs, so they may have different coverage and reliability. The network side can choose a TP / CC and indicate to UE for its uplink.
[0253] So based on the information discussed above, in the pre-configured signals, the network side may tell the UE in which TP / CC to report the measurement results, to achieve better link performance or reliability.
[0254] Referring to parameter#9 and parameter#10, the work duration (or work period) may refer to the time duration when a network node or a CC is in a state (or mode) capable of transmitting reference signals. The work duration may refer to the time duration when a network node is in a non-power-saving mode (e.g., connected mode, active mode, etc) . The time duration may be also known as active duration, non-power-saving duration, connected duration, or other names. The work duration may be indicated in a variety of ways. For example, it can be indicated by a time duration of being in a state (or mode) capable of transmitting reference signals; or indicated by starting time of a power-saving mode; or indicated by ending time of a power-saving mode; or indicated by a time duration of a power-saving mode; or a combination thereof. This is not limited to this application.
[0255] Parameter#9 is related to the CC-ID / CC group-ID / Uni-C-ID power on / off information {ID, Duration, Starting time} .
[0256] Parameter#10 is related to burst measurement sets {period, back to sleep time} .
[0257] For example, there is possible that the network side is willing to power off or power on some carriers of it considering power saving. It is a new feature of the future network nodes. Therefore, the network side will pre-configure the information about which Carrier or which group of carriers or which Uni-C will close at a certain time, or power on at a certain time. It means that, if the ID-related CC or CC group or Uni-C will power off at a certain time, it means that, the UE will not measure the signaling after the given time and it could also save the UE’s power as well. If the ID-related CC or CC group or Uni-C will power on at a certain time, it means that the UE will start to measure the signaling of the ID-related channel after the given time and it will report the related information by using other pre-configured information, such as the RSRP and so on.
[0258] In some instances, burst measurement sets {period, back to sleep time} : the network node could pre-configure a burst measurement sets for all the UE for measurement. It could be a system level set. It will tell the UEs, when the BS or TRP (network nodes) will be turned on in a certain period, for example, 320ms for measurement. After that, the TRP will go back to sleep, and the UE will continue its service from other serving TP / CC, and will report measurement and wait for next time scheduling if needed. There will be no further measurement for the TRP / CC after the given time. Plus, the set could cover a period, or the next time wake-up time or indication, which will tell the UE the next time for wake-up time, it could be like 1 minute.
[0259] In some instances, in order to extremely reduce the power cost of the network side, there is an embodiment that the network side set the monitoring period as a system level and put it in SIB information, which means, the network side wants all the UE / or Uni-C / or CC group to monitor the measurement resources at the same time, which would lead the BS can wake up at a certain time to send downlink RS and then go to sleep. If all the UE can be scheduled to measure the signals together, it would greatly help the BS to wake up and go to sleep at a certain time. To be more detailed, the set of the pre-configured period could be an extension or subset of the period of SSB or downlink RS as defined in 5G. For example, the downlink CSI-RS could set as {5ms 10ms 20ms …} period, and the new period of CSI-RS for a certain TRP or Uni-C ID can be set as 320ms, which can reuse the CSI-RS of 5G (not exactly the same, as CSI-RS in 5G is a UE-specific RS, the system level RS need to be further defined similar to PSS / SSS) , and just lead the UE to measure in a longer period together, which can save the power cost of the network side.
[0260] Furthermore, there could be multi-level sleep status and the relevant configuration which could be different. As shown in FIG. 6, there could be at least 2-level sleep status. The first one is the Power-off level, which is the most powerful power-saving status for the TP. It can be defined as a status that can totally close the Tx or Rx radio for several hours, minutes, and with long period. Then, the second level of sleep is the sleep level, which means it may need to wake up in some short period, and with the Tx radio closed, maybe it needs to receive PUCCH in a long period. Or maybe it can be used for transmitting low power cost signals, for example, Chirp signals, sensing signals, low power wake up signals, and so on.
[0261] The UE can obtain the above parameters in a variety of ways. The above parameters may be pre-defined based on the application scenario; or be determined by the UE as a function of parameters that are known by the UE; or be signaled, e.g., by the configuration information; or a combination thereof.
[0262] The configuration information may be included in physical broadcast channel (PBCH) ; or in physical layer control signaling such as DCI; or in radio resource control (RRC) signaling; or in the medium access control (MAC) layer; or a combination thereof. This is not limited to this application.
[0263] In some implementations, a default value of a parameter may be pre-defined or pre-configured. When the configuration information does not carry a value of this parameter, the UE can assume that this parameter takes the default value.
[0264] The configuration information may be included in one or more signaling messages. For example, the above parameters may include two types of parameters, where one type is that the parameters need to be updated frequently (which may be referred to fast level configuration) , and another type is that the parameters do not need to be updated frequently (which may be referred to slow level configuration) . The two types of parameters may be included in different signaling messages. Notably, update frequency is depended on specific scenarios, this is not limited to this application, some examples given below are for illustrative purpose. In some instances, this mechanism may be referred to multi-level configuring procedure for measurement. The mechanism that sending the parameters uniformly may be referred to single-level configuring procedure.
[0265] In this embodiment, we figure out the multi-level procedure for the pre-configured signaling with an accessed operator. The signaling of network side transmits to UE which index the configuration can go through such as RRC, MAC-CE, DCI, or a combination thereof may be used to allocate one or more anchor carriers for the UE.
[0266] Based on the pre-configured signaling, the UE could know all the information about the signals will send. The configuration information could be separated into multi-levels as the parameters could be separated into slow update level and the fast update level. For example, the SSB configuration or cross Uni-C / SRS / RRM RS switch could be in a long period and the UE can predict that the information for these signals may change very slowly. The UE may wait a longer time to monitor if there is new signaling for changing the slow update level configured scheduling. Apart from this, there can be fast update level configurations. For example, the intra-Carrier CC CSI-RS / SRS / RRM RS switch. This is due to in the same carrier CC, the operator can easily change the serving CC from one to another. The UE may face a lot of switches and CC level measurement report. At last, there is another level for fast update level configurations, which is the intra-carrier CC switch.
[0267] Considering multi-level configuration, in each level configuration, the parameters in can share the same configurations which could reduce the signaling overhead, and make it easier to manage. As aforementioned, the UE can predict that Changing the SSB configuration and the cross Uni-CC RS measurement is slow update level. Therefore, we may set a list below to modify the slow update parameters:
[0268] The Uni-C IDs the measurement will be sent, that is, Uni-C IDs associated with sets of reference signals;
[0269] The CC IDs of the mentioned Uni-C IDs the measurement will be sent, that is, CC IDs associated with the sets of reference signals;
[0270] The detailed information of each CC ID: bandwidth part (BWP) , RBGs, RBs, start frequency, start symbol, symbols / slots numbers, half frame index, or frame index, etc. ;
[0271] The period of signals group, that is, the transmission periodicity;
[0272] The simultaneous transmission information;
[0273] The priority information for measurement and / or reporting (e.g., parameter#1, parameter#2) ;
[0274] The inter-CC or inter-frequency transmission simultaneously considering part overlap (e.g., parameter#3) ;
[0275] Beam numbers or beam index for each CC (e.g., parameter#5) ;
[0276] The report CC information (e.g., parameter#8) ;
[0277] The transmit power offset from different Uni-C; (e.g., parameter#6) ;
[0278] Some QCL relation (TCI state information) is possible with the serving CC or anchor CC. The UE can use other DMRS with QCL relation to do the measurement (e.g., parameter#7) ; and
[0279] The Uni-C-ID power on / off information {ID, Duration, Starting time} (e.g., parameter#9, parameter#10) .
[0280] The main parameters that would change are the period of the signals group. In the slow update parameters, the signals would share the same or similar period. The time period of signals, or the QCL relation of the given CC or near frequency CC would not change in a time. Therefore the period of the signals group may indicate the period of all signals mentioned in the slot update parameters.
[0281] Separately, the second level configuration is for fast update, which may include the information of intra-carrier CC measurement, and the switch index of reference signals based on specific CC measurement:
[0282] The CC IDs intra-carrier CC;
[0283] The detailed information of each CC ID (When CC is changed, the information may need renew) : bandwidth part (BWP) , and RBGs or RBs, start frequency, start symbol, symbols / slots numbers, half frame index, frame index;
[0284] The period of signals group;
[0285] The simultaneously transmission information;
[0286] The priority information for measurement and / or reporting;
[0287] The inter-CC or inter-frequency transmission simultaneously considering part overlap;
[0288] The port index for some channel reference signals;
[0289] Beam numbers and / or beam index for each CC;
[0290] The report CC information;
[0291] The transmit power offset from different Uni-CC;
[0292] Some QCL relation (TCI state information) possible with the serving CC or anchor CC. The UE can use other DMRS with QCL relation to do the measurement; and
[0293] The CC-ID power on / off information {ID, Duration, Starting time} .
[0294] In the fast update parameters, the signals would also share the same or similar period. So, the time period of signals, or the QCL relation of the given CC or near frequency CC would not change in a time. So the period of signals group may indicate the period of all signals it mentioned in the fast update parameters. The information would take more information about CSI-RS / SRS / or other RS information and the period of the signals.
[0295] According to the above solution, the network side can schedule sets of physical resources for the terminal to receive sets of reference signals. The sets of physical resources are associated with two or more network nodes, that is, the network side can schedule two or more network nodes to serve the terminal, making full use of network node resources. A time resource within each of the sets of physical resources partially or fully overlap, that is, the time resource can be shared by the sets of reference signals, making full use of time resources. The terminal receives the sets of reference signals that are mapped on the sets of physical resources, improving the utilization of resources.
[0296] Based on various embodiments described above, the network side may transmit the configuration information in a variety of ways. In a first implementation, the configuration information includes configuration information part 1 and configuration information part 2. The parameters in configuration information part 1 and configuration information part 2 may carry parameters that may be updated with different periods. The first implementation may be referred to as multi-level configuring procedure. In a second implementation, the configuration information may be transmitted with a single part. The second implementation may be referred to as single-level configuring procedure. Details of the multi-level configuring procedure and single-level configuring procedure are given below.
[0297] For example, it could be a Multi-Level configuring procedure, which may include 1st level: the index of TP ID or hyper configured ID Uni-C ID the network side wants the UE to do measurement, plus, the Index sets of CC IDs and / or the beam numbers. And 2nd level: Indicate detailed information sets for each CC measurement: may include but not limit to: bandwidth part (BWP) , and RBGs or RBs, start frequency, start symbol, frame index, half frame index.
[0298] For another example, it could be a single-Level configuring procedure, it contains some new information list below:
[0299] The TP IDs or CC IDs or higher layer configured IDs the measurement will be sent;
[0300] Optional: The Uni-C IDs the measurement will be sent;
[0301] The detailed information of each CC ID: bandwidth part (BWP) , RBGs, RBs, start frequency, start symbol, symbols / slots numbers, half frame index, or frame index, etc. ;
[0302] The period of signals group, that is, the transmission periodicity;
[0303] The simultaneous transmission information;
[0304] The priority information for measurement and / or reporting (e.g., parameter#1, parameter#2) ;
[0305] The inter-CC or inter-frequency transmission simultaneously considering part overlap (e.g., parameter#3) ;
[0306] Beam numbers or beam index for each CC (e.g., parameter#5) ;
[0307] The report CC information (e.g., parameter#8) ;
[0308] The transmit power offset from different Uni-C (e.g., parameter#6) ;
[0309] Some QCL relation (TCI state information) is possible with the serving CC or anchor CC. The UE can use other DMRS with QCL relation to do the measurement (e.g., parameter#7) ; and
[0310] The Uni-C-ID power on / off information {ID, Duration, Starting time} (e.g., parameter#9, parameter#10) .
[0311] It could be a system level / UE group level information which could be in PBCH or RRC.
[0312] It could be multi-level for sleeping of Time.
[0313] Burst measurement sets {period, back to sleep time} .
[0314] Signaling and procedure designs are further described in the following embodiments.
[0315] In some embodiments, a pre-configured signaling is considered, based on the pre-configured signaling, the UE could know all the information about the signals will be sent. Apart from this, even some report priority or measurement priority can also be sent to UE based on the UE capability report or the network side preference.
[0316] Firstly, while a UC-CF UE has already finished its initial access, it could be camped at one Anchor TP / CC or its serving TP / CC. It can have some information about the TP sets of all CCs it may use (which can be transmitted in SIBs) . These could be managed by Uni-CC IDs. But it needs to do measurement to know more information about the channel of CCs and TPs, it needs to do measurement first. Then based on the measurement, the network side and the UE would know which TP and the relevant radio resource is better for the UE. Considering that there are so many TPs / CCs (Uni-CC) an Operator can use, the network side will send the UE some pre-configured signaling where the DL / UL signal will happen and where the signal comes from.
[0317] In some implementations, UE capability report may be already done by the UE and the network side already knows the capability of the UE. Now the network side is transmitting the pre-configured signaling to the UE.
[0318] The pre-configured signaling should include at least:
[0319] The TP IDs or CC IDs or higher layer configured IDs the measurement will be sent;
[0320] Optional: The Uni-C IDs the measurement will be sent;
[0321] The detailed information of each TP / CC ID: bandwidth part (BWP) , RBGs, RBs, start frequency, start symbol, symbols / slots numbers, half frame index, frame index, etc. ;
[0322] The period of signals for each TP / CC ID;
[0323] The simultaneously transmission information (different CCs or TPs) ; and
[0324] The CC-ID / CC group-ID / Uni-CC-ID power on / off information;
[0325] These could be involved in a table or some tables.
[0326] In some embodiments, we figure out the procedure for the pre-configured signaling with an accessed operator. The signaling of network side transmits to UE which index the configuration can go through such as RRC, MAC-CE, DCI, or a combination thereof may be used to allocate one or more anchor carriers for the UE. The UE may be allocated anchor carriers that are indicated by one or more Uni-Cs and / or CC IDs for DL and UL communications, respectively.
[0327] The serving operator (for example, the first TP of operator A) could transmit the indicating signaling of UE capability to the UE. Correspondingly, the UE could receive the indicating signaling information from its serving operator. The signaling can be sent through the anchor CC of the serving operator, the serving CC the UE camped, or the initial access CC the UE accessed.
[0328] FIG. 16 illustrates a schematic diagram of multi-level configuring procedure according to embodiments of this application.
[0329] As aforementioned, due to the flexibility between the network nodes, the network node who transmits the configuration information and the network nodes who transmit the sets of reference can be the same or different. Therefore, in embodiments of this application, the term “network side” is used to generally refer to one or more network nodes.
[0330] Optionally, at step 1610, the network side transmits request information to UE.
[0331] For example, the first TP (as illustrated in FIG. 15) transmits the request information to the UE.
[0332] The request information requests capability information. For example, the request information may request parameters related to a capability for simultaneous transmission with two or more network nodes. Thus, the network side may schedule suitable network nodes to serve the UE.
[0333] Optionally, at step 1620, the UE transmits capability information the network side.
[0334] For example, the UE transmits the capability information to the first TP.
[0335] For example, the UE may do the capability report to the network side, through the Anchor CC or the served CC the UE camped, or the uplink Anchor CC, or the uplink served CC the UE UL camped. The capability report could include the formats in 1st level reporting, or parts of formats in 1st level reporting and with the 2nd level capability report. If not transmitted format, the network side could consider it as a default value.
[0336] At step 1630, the network side transmits configuration information part 1 to the UE.
[0337] For example, the first TP transmits the configuration information part 1 to the UE.
[0338] At step 1640, the network side transmits configuration information part 2 to the UE.
[0339] For example, the first TP transmits the configuration information part 2 to the UE.
[0340] The serving operator obtained the UE capability report. From it, the network side may know some information about the UE can measured Uni-Cs and / or other information. Based on the UE capability, the serving operator schedules the measurement resource for the UE. It can choose some sets of the knowledge that the UE needs to know to transmit. The first part is the information that the UE must know. Which includes information such as:
[0341] The Uni-C IDs the measurement will be sent;
[0342] The CC IDs of the mentioned Uni-C IDs the measurement will be sent;
[0343] The detailed information of each CC ID: bandwidth part (BWP) , RBGs, RBs, start frequency, start symbol, symbols / slots numbers, half frame index, frame index, etc;
[0344] The period of signals for each CC ID;
[0345] The simultaneous transmission information; and
[0346] The Uni-C-ID power on / off information {ID, Duration, Starting time} .
[0347] As a different part, in order to make the measurement more accurate, or more meet the needs of the network side, or more effectively, the network side could send the UE a second part of information, such as:
[0348] The priority information for measurement and / or reporting;
[0349] The inter-CC or inter-frequency transmission simultaneously considering part overlap;
[0350] The port index for some channel reference signals;
[0351] Beam numbers and / or beam index for each CC;
[0352] The report CC information;
[0353] The transmit power offset from different Uni-C;
[0354] QCL relation between some beams of measurement signals and other reference signals;
[0355] The CC-ID power on / off information {ID, Duration, Starting time} .
[0356] Details of the step 1630 and step 1640 can be referred to description in step 710 in FIG. 7.
[0357] At step 1650, the network side transmits sets of reference signals to the UE.
[0358] For example, the first TP transmits a set of reference signal to the UE, and the second TP transmits another set of reference signals to the UE.
[0359] Details of the step 1650 can refer to description in step 720 in FIG. 7.
[0360] By knowing the information sent by the network side, the UE would do the measurement based on the pre-configured signals. That is the next step of measurement.
[0361] In some embodiments, we figure out the procedure for the pre-configured measurement with 1 part. The signaling of network side transmits to UE which index the configuration can go through such as RRC, MAC-CE, DCI, or a combination thereof may be used to allocate one or more anchor carriers for the UE. The UE may be allocated anchor carriers that are indicated by one or more Uni-Cs and / or CC IDs for DL and UL communications, respectively.
[0362] The serving operator (for example, first TP of operator A) could transmit the indicating signaling of UE capability to the UE. Correspondingly, the UE could receive the indicating signaling information from its serving operator. The signaling can be sent through the anchor CC of the serving operator, or the serving CC the UE camped, or the initial access CC the UE accessed.
[0363] FIG. 17 illustrates a schematic diagram of single-level configuring procedure according to embodiments of this application.
[0364] As aforementioned, due to the flexibility between the network nodes, the network node who transmits the configuration information and the network nodes who transmit the sets of reference can be the same or different. Therefore, in embodiments of this application, the term “network side” is used to generally refer to one or more network nodes.
[0365] Optionally, at step 1710, the network side transmits request information to UE.
[0366] For example, the first TP (as illustrated in FIG. 15) transmits the request information to the UE.
[0367] The request information requests capability information. For example, the request information may request parameters related to a capability for simultaneous transmission with two or more network nodes. Thus, the network side may schedule suitable network nodes to serve the UE.
[0368] Optionally, at step 1720, the UE transmits capability information the network side.
[0369] For example, the UE transmits the capability information to the first TP.
[0370] For example, the UE may do the capability report to the network side, through the Anchor CC or the served CC the UE camped, or the uplink Anchor CC, or the uplink served CC the UE UL camped. The capability report could include the formats in 1st level reporting, or parts of formats in 1st level reporting and with the 2nd level capability report. If not transmitted format, the network side could consider it as a default value.
[0371] At step 1730, the UE transmits configuration information the network side.
[0372] The serving operator achieved the UE capability report. From it, the network side may know some information about the UE that can measured Uni-Cs and / or other information. Based on the UE capability, the serving operator may schedule the measurement resource for the UE. It can choose some sets of the knowledge that the UE for transmission. The first part is the information that the UE must know. Which includes the information such as:
[0373] The Uni-C IDs the measurement will be sent;
[0374] The CC IDs of the mentioned Uni-C IDs the measurement will be sent;
[0375] The detailed information of each CC ID: bandwidth part (BWP) , RBGs, RBs, start frequency, start symbol, symbols / slots numbers, half frame index, frame index, etc. ;
[0376] The period of signals for each CC ID;
[0377] The simultaneous transmission information;
[0378] The priority information for measurement and / or reporting;
[0379] The inter-CC or inter-frequency transmission simultaneously considering part overlap;
[0380] The port index for some channel reference signals;
[0381] Beam numbers and / or beam index for each CC;
[0382] The report CC information; and
[0383] The transmit power offset from different Uni-CC.
[0384] By knowing the information sent by the UE, the network side then sends the pre-configured measurement information to the UE. That is the next step of measurement. If some of the information listed before is not transmitted, the UE would think that the information should be defaulted.
[0385] Details of the step 1740 can be referred to description in step 710 in FIG. 7.
[0386] At step 1750, the network side transmits sets of reference signals to the UE.
[0387] For example, the first TP transmits a set of reference signal to the UE, and the second TP transmits another set of reference signals to the UE.
[0388] Details of the step 1750 can refer to description in step 720 in FIG. 7.
[0389] In the communication system proposed in the application, at the scheduling level, the network side can schedule multiple network nodes for UE, making the resource scheduling more flexible.
[0390] The most important feature / benefits of the application would be :
[0391] 1. Power on / off for some of network nodes, and the network side can do power saving.
[0392] The scheduling of network node granularity makes the UE does not depend on a single network node so that the network nodes can be in power saving mode.
[0393] 2. More cooperation network nodes, more / better choice for UE.
[0394] The multiple network nodes can collaborate to serve UE.
[0395] 3. Coverage network node (or carrier) , capacity network node (or carrier) could be set as a service network node (or carrier) : enable the UE camped on a certain service network node with large coverage or capacity.
[0396] For example, the configuration information indicates UE to transmit measurement information to a network node associated with a coverage CC (or coverage Uni-C) or a capacity CC (or capacity Uni-C) , enabling reliable first capability information transmission.
[0397] 4. Decouple the control link and data link.
[0398] For example, the configuration information may be transmitted via control link (e.g., the control link between TP#6 and UE#3) , and measurement information may be transmitted via data link (e.g., the data link between TP#3 and UE#3) . The control link and the data link do not need to be bound to the same network node, making the resource scheduling more flexible.
[0399] 5. Decouple the DL and UL.
[0400] The UE can communicate with various types of network nodes, uplink and downlink may be associated with the same or different network nodes, so that the uplink and downlink can be decoupled. DL and UL do not need to be bound to the same network node, making the resource scheduling more flexible.
[0401] As aforementioned, the network node resource management method may involve UE’s capability, measurement configuring and measurement. Detailed description of the method for measurement configuring is given in the above implementations. Brief description of general network node resource management method is further given below.
[0402] Measurement and Reporting:
[0403] Based on a UC-CF network architecture, a new measurement and reporting procedure need to be designed, where content includes but is not limited to the following:
[0404] 1. The UE reports its capabilities, including which TP-ID, hyper configure ID or (optional) CCs and TP sets or hyper configured ID sets or Uni-CCs that the UE can measure and wants to measure.
[0405] 2. Based on a capability of the UE, an operator pre-configures measurement information and resources for the UE. The measurement information is based on TP sets or hyper configured ID sets or Uni-CC or a CC-ID.
[0406] 3. The configurations of TRPs which will prepare resources for the UE to do measurements are prepared. The TRPs send the measurement resources to the UE at the pre-configured time, through SSB / PDCCH / PDSCH / CSI-RS / ….
[0407] 4. The UE performs measurement based on preconfigured measurement and resources. And report of these measurements is reported to the service TP / CC.
[0408] 5. New measurement indication are send to UE through RRC / MAC CE / DCI, which could include new Uni-CC / CC group / CC measurement, and the change of CCs information, or new period and measurement information.
[0409] 6. The UE performs a new round of reporting based on measurement. And report of these measurements is reported to the service TP / CC.
[0410] 7. Based on the reported information, the base station schedules resources to the UE for service.
[0411] Further, in this disclosure, we focus on disclosing details of a procedure of pre-configured signaling.
[0412] As aforementioned, Pre-configure Signaling (the configuration information) :
[0413] As one step of measurement and reporting, we have some points of the disclosure:
[0414] Overall procedure for measurement
[0415] In some embodiment, we discuss the overall procedure for measurement and reporting. We figure out the procedure for the UE measurement with an accessed operator. The signaling of the operator transmits to UE which index the configuration can go through such as RRC, MAC-CE, DCI, or a combination thereof may be used to allocate one or more anchor carriers for the UE. The UE may be allocated anchor carriers that are indicated by one or more Uni-Cs and / or CC IDs for DL and UL communications, respectively.
[0416] Step1: UE capability report
[0417] The serving operator (TP#1 of operator A in this example) could transmit the indicating signaling of UE capability to the UE. Correspondingly, the UE could receive the indicating signaling information from its serving operator (TP#1 of operator A in this example) . The signaling can be sent through the anchor CC of the serving operator, or the serving CC the UE camped, or the initial access CC the UE accessed.
[0418] The UE could do the 1st level capability report to the network side, through the Anchor CC or the served CC the UE camped, or the uplink Anchor CC, or the uplink served CC the UE UL camped. The capability report could include the formats in 1st level reporting, or parts of formats in 1st level reporting. If not transmitted format, the network side could consider it as a default value.
[0419] The serving operator achieved the 1st level report. From it, the network side may know some information about the UE can measure: Uni-Cs and / or other information. The serving operator continues to send the indication signaling of UE 2nd level capability report request to the UE. The signaling may be in the same CC with the 1st level capability request. For example, same Anchor CC. The network side may send the 2nd level capability report request to the UE, which may include which formats need to be reported, the index of formats, the UL CC the UE sent the information to, it may default, and the UE will send the 2nd level report through the CC same as the 1st level report.
[0420] The UE could do the 2nd level capability report to the network side, through the Anchor CC or the served CC the UE camped, or the uplink Anchor CC, or the uplink served CC the UE UL camped. The capability report could include the formats in 2nd level reporting, or parts of formats in 2nd level reporting. If not transmitted format, the network side could consider it as a default value.
[0421] Step2: DL Signaling: Pre-configure Uni-C and CC groups for measurement.
[0422] The Uni-C IDs the measurement will be sent.
[0423] The CC IDs of the mentioned Uni-C IDs the measurement will be sent.
[0424] The detailed information of each CC ID: bandwidth part (BWP) , RBGs, RBs, start frequency, start symbol, symbols / slots numbers, half frame index, frame index, etc.
[0425] The period of signals for each CC ID.
[0426] The simultaneous transmission information.
[0427] The priority information for measurement and / or reporting.
[0428] The inter-CC or inter-frequency transmission simultaneously considering part overlap.
[0429] The port index for some channel reference signals.
[0430] Beam numbers and / or beam index for each CC
[0431] The report CC information.
[0432] The transmit power offset from different Uni-C.
[0433] Step3-1: Measurement based on the idle / inactive model.
[0434] UE behave, do the SSB measurement, and achieve the CC’s information, i.e. RSRPs.
[0435] Step3-2: Measurement based on the active model
[0436] UE behaves, does the CSI-RS / PDCCH / PDSCH DMRS / SRS measurement, and achieves the CC’s information, e.g. RSRPs.
[0437] Step4: UE reports for the measurement.
[0438] Based on the measurement, the UE would report some sets of indexes of CCs RSRPs to the network side.
[0439] Step5: Signaling changing for the renew information.
[0440] Based on the reporting, some CC may need further measurements, or some of service CC need to power on or power Off, or the UE is moving, so there is a need for further measurements. The network side will send the UE changing of measurement through signaling.
[0441] Step6: Renewed transmission with pre-configured resource.
[0442] The network side sent the signal to the UE with renewed resource.
[0443] Step7: UE reports for the measurement.
[0444] Step8: Based on the information UE report, some detailed information is given for Data transmission or other cases.
[0445] The methods according to embodiments of this application are described above in detail with reference to FIGs. 6-17. The apparatuses provided in embodiments of this application are described below in detail with reference to FIGS. 6-17. The description of apparatus embodiments corresponds to the description of the method embodiments. Therefore, for content that is not described in detail, refer to the foregoing method embodiments. For brevity, details are not described herein again.
[0446] As aforementioned in FIG. 4, the apparatus 410 may be configured to perform actions performed by the UE in the foregoing method embodiments. In this case, the apparatus 410 may be the UE or a component that can be configured in the UE.
[0447] The apparatus 410 may implement steps or procedures performed by the UE in FIGs. 6-17 according to embodiments of this application. The apparatus 410 may include units configured to perform the method performed by the UE in FIGs. 6-17. In addition, the units in the communication apparatus 410 and the foregoing other operations and / or functions are separately used to implement corresponding procedures in FIGS. 6-17.
[0448] Alternatively, the apparatus 410 may be configured to perform actions performed by the network side (network node) in the foregoing method embodiments. In this case, the apparatus 410 may be the network side (network node) or a component that can be configured in the network side (network node) .
[0449] The apparatus 410 may implement steps or procedures performed by the network side (network node) in FIGs. 6-17 according to embodiments of this application. The apparatus 410 may include units configured to perform the method performed by the network side (network node) in FIGs. 6-17. In addition, the units in the communication apparatus 410 and the foregoing other operations and / or functions are separately used to implement corresponding procedures in FIGs. 6-17.
[0450] Alternatively, the apparatus 410 may be configured to perform actions performed by the third device in the foregoing method embodiments. In this case, the apparatus 410 may be the third device or a component that can be configured in the third device.
[0451] The apparatus 410 may implement steps or procedures performed by the third device in FIGs. 6-17 according to embodiments of this application. The apparatus 410 may include units configured to perform the method performed by the third device in FIGs. 6-17. In addition, the units in the communication apparatus 410 and the foregoing other operations and / or functions are separately used to implement corresponding procedures in FIGs. 6-17.
[0452] A specific process in which the units perform the foregoing corresponding steps is described in detail in the foregoing method embodiments. For brevity, details are not described herein again.
[0453] As aforementioned in FIG. 5, the methods in the foregoing method embodiments are executed by the apparatus 510.
[0454] In some embodiments, the apparatus 510 may be a UE or a component (e.g., a chip, a circuit, or a processing system) that can be configured in the UE; or the communication apparatus 510 may be a network side (network node) or a component (e.g., a chip, a circuit, or a processing system) that can be configured in the network side (network node) ; or the communication apparatus 510 may be a third device or a component (e.g., a chip, a circuit, or a processing system) that can be configured in the third device.
[0455] In a solution, the apparatus 510 is configured to perform the operations performed by the UE in the foregoing method embodiments.
[0456] For example, the processor unit 511 may be configured to perform a processing-related operation performed by the UE in the foregoing method embodiments, and the communication unit 513 may be configured to perform a communicating-related (e.g., receiving / transmitting-related) operation performed by the UE in the foregoing method embodiments.
[0457] In another solution, the apparatus 510 is configured to perform the operations performed by the network side (network node) in the foregoing method embodiments.
[0458] For example, the processor unit 511 may be configured to perform a processing-related operation performed by the network side (network node) in the foregoing method embodiments, and the communication unit 513 may be configured to perform a communicating-related (e.g., receiving / transmitting-related) operation performed by the network side (network node) in the foregoing method embodiments.
[0459] In another solution, the apparatus 510 is configured to perform the operations performed by the third device in the foregoing method embodiments.
[0460] For example, the processor unit 511 may be configured to perform a processing-related operation performed by the third device in the foregoing method embodiments, and the communication unit 513 may be configured to perform a communicating-related (e.g., receiving / transmitting-related) operation performed by the third device in the foregoing method embodiments.
[0461] An embodiment of this application further provides a computer-readable storage medium. The computer-readable storage medium stores computer instructions used to implement the method performed by the UE, or the method performed by the network side (network node) or the method performed by the third device in the foregoing method embodiments.
[0462] For example, when the computer program is executed by a computer, the computer may be enabled to implement the method performed by the UE, or the method performed by the network side (network node) , or the method performed by the third device in the foregoing method embodiments.
[0463] An embodiment of this application further provides a computer program product including instructions. When the instructions are executed by a computer, the computer is enabled to implement the method performed by the UE, or the method performed by the network side (network node) , or the method performed by the third device in the foregoing method embodiments.
[0464] An embodiment of this application further provides a communication system. The communication system includes the UE and the network side (network node) in the foregoing embodiments. Optionally, the communication system further includes the third device in the foregoing embodiments.
[0465] For explanations and beneficial effects of related content of any communication apparatus provided above, refer to a corresponding method embodiment provided above. Details are not described herein again.
[0466] A person of ordinary skill in the art may be aware that, in combination with the examples described in embodiments disclosed in this specification, units and methods may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed by hardware or software depends on particular applications and design constraints of the technical solutions. A person skilled in the art may use different methods to implement the described functions for each particular application, but it should not be considered that the implementation goes beyond the protection scope of this application.
[0467] It should be noted that the term “receive” or “receiving” used herein may refer to receiving or otherwise obtaining from an element / component in same apparatus or from another device separate from the apparatus. Similarly, the term “transmit” or “transmitting” may refer to outputting or sending to / for an element / component in same apparatus or to / for another device separate from the apparatus. For example, any of the methods / procedures described herein may be performed by a chipset, in which case any sending or receiving steps may occur between elements of the chipset.
[0468] It may be clearly understood by a person skilled in the art that, for the purpose of convenient and brief description, for a detailed working process of the foregoing apparatus and unit, refer to a corresponding process in the foregoing method embodiment. Details are not described herein again.
[0469] In the several embodiments provided in this application, the disclosed apparatuses and methods may be implemented in other manners. For example, the described apparatus embodiment is merely an example. For example, division into the units is merely logical function division and may be other division in an actual implementation. For example, a plurality of units or components may be combined or integrated into another system, or some features may be ignored or not performed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections may be implemented through some interfaces. The indirect couplings or communication connections between the apparatuses or units may be implemented in electronic forms, mechanical forms, or other forms.
[0470] The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on a plurality of network units. Some or all of the units may be selected based on an actual requirement to implement the solutions provided in this application.
[0471] In addition, function units in embodiments of this application may be integrated into one unit, or each of the units may exist alone physically, or two or more units may be integrated into one unit.
[0472] 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.
[0473] 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.
[0474] 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.
[0475] 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.
[0476] 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.
[0477] In the present disclosure, the terms "system" and "network" may be used interchangeably in different embodiments 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 embodiments 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.
[0478] A person skilled in the art should understand that embodiments of 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.
[0479] 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.
[0480] 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.
[0481] 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.
[0482] The present disclosure encompasses various embodiments, including not only method embodiments, but also other embodiments such as apparatus embodiments and embodiments related to non-transitory computer readable storage media. Embodiments may incorporate, individually or in combinations, the features disclosed herein.
[0483] Although this disclosure refers to illustrative embodiments, this is not intended to be construed in a limiting sense. Various modifications and combinations of the illustrative embodiments, as well as other embodiments of the disclosure, will be apparent to persons skilled in the art upon reference to the description.
[0484] Features disclosed herein in the context of any particular embodiments may also or instead be implemented in other embodiments. Method embodiments, for example, may also or instead be implemented in apparatus, system, and / or computer program product embodiments. In addition, although embodiments are described primarily in the context of methods and apparatus, other implementations are also contemplated, as instructions stored on one or more non-transitory computer-readable media, for example. Such media could store programming or instructions to perform any of various methods consistent with the present disclosure.
Claims
1.A communication method, comprising:receiving configuration information, wherein the configuration information indicates sets of reference signals, the sets of reference signals are respectively associated with sets of physical resources, the sets of reference signals are associated with two or more network nodes, each of the sets of reference signals comprises one or more reference signals, each of the sets of physical resources comprises one or more physical resources, and a time resource within each of the sets of physical resources partially or fully overlap; andreceiving the sets of reference signals based on the configuration information.2.The method according to claim 1, wherein each of the two or more network nodes is associated with at least one of the sets of reference signals.3.The method according to claim 1 or 2, wherein each of the sets of physical resources corresponds to a network node of the two or more network nodes.4.The method according to any one of claims 1 to 3, wherein each of the sets of physical resources is associated with a carrier.5.The method according to any one of claims 1 to 4, wherein a carrier associated with each of the sets of physical resources is comprised in a set of one or more carriers.6.The method according to claim 5, wherein the set of one or more carriers is associated with at least one public land mobile network (PLMN) .7.The method according to any one of claims 1 to 6, wherein the configuration information further indicates one or more of: two or more identifiers of the two or more network nodes, and an identifier corresponding to a set of the two or more network nodes.8.The method according to any one of claims 1 to 7, wherein the time resource within each of the sets of physical resources are associated with one or more of following parameters:time locations;transmission periodicity associated with a set of one or more carriers, wherein the set of one or more carriers comprises a carrier within the corresponding set of physical resources;transmission periodicity associated with a set of the two or more network nodes;transmission periodicity associated with a carrier within the corresponding set of physical resources; andtransmission periodicity associated with a network node corresponding to the corresponding set of physical resources.9.The method according to any one of claims 1 to 8, wherein the sets of reference signals comprise a first set of reference signals and a second set of reference signals; wherein,the first set of reference signals is associated with a first carrier, the second set of reference signals is associated with a second carrier, a time resource within a set of physical resources associated with the first set of reference signals overlaps partially or fully with a time resource within a set of physical resources associated with the second set of reference signals; orthe first set of reference signals is associated with a first network node of the set of two or more network nodes, the second set of reference signals is associated with a second network node of the set of two or more network nodes, a time resource associated with the first set of reference signals overlaps partially or fully with a time resource associated with the second set of reference signals.10.The method according to any one of claims 1 to 9, wherein the configuration information further indicates one or more of:a measurement order of the two or more network nodes;a measurement order of a carrier within each of the sets of physical resources;a rule when a collision occurs on the sets of reference signals;antenna ports associated with the sets of reference signals;beams associated with the sets of reference signals;transmit power associated with the sets of reference signals;quasi co-located relationship between the sets of reference signals;a first network node to which measurement information to be transmitted, wherein the measurement information is based on the sets of reference signals;work duration associated with a carrier within one of the sets of physical resources; andwork duration associated with one of the two or more network nodes.11.The method according to any one of claims 1 to 10, wherein a first network node is associated with a first set of one or more carriers, the first set of one or more carriers comprises one or more of: an initial access carrier, an anchor carrier, and a serving carrier, wherein the first network node is a network node that to which measurement information to be transmitted, and the measurement information is based on the sets of reference signals.12.The method according to any one of claims 1 to 11, wherein part or all of the set of two or more network nodes support at least one power saving mode.13.A communication method, comprising:generating configuration information, wherein the configuration information indicates sets of reference signals, the sets of reference signals are respectively associated with sets of physical resources, the sets of reference signals are associated with two or more network nodes, each of the sets of reference signals comprises one or more reference signals, each of the sets of physical resources comprises one or more physical resources, and a time resource within each of the sets of physical resources partially or fully overlap; andtransmitting the configuration information.14.The method according to claim 13, wherein the method further comprises:transmitting at least one set of the sets of reference signals.15.The method according to claim 13 or 14, wherein each of the two or more network nodes is associated with at least one of the sets of reference signals.16.The method according to any one of claims 13 to 15, wherein each of the sets of physical resources corresponds to a network node of the two or more network nodes.17.The method according to any one of claims 13 to 16, wherein each of the sets of physical resources is associated with a carrier.18.The method according to any one of claims 13 to 17, wherein a carrier associated with each of the sets of physical resources is comprised in a set of one or more carriers.19.The method according to claim 18, wherein the set of one or more carriers is associated with at least one public land mobile network (PLMN) .20.The method according to any one of claims 13 to 19, wherein the configuration information further indicates one or more of: two or more identifiers of the two or more network nodes, and an identifier corresponding to a set of the two or more network nodes.21.The method according to any one of claims 13 to 20, wherein the time resource within each of the sets of physical resources are associated with one or more of following parameters:time locations;transmission periodicity associated with a set of one or more carriers, wherein the set of one or more carriers comprises a carrier within the corresponding set of physical resources;transmission periodicity associated with a set of the two or more network nodes;transmission periodicity associated with a carrier within the corresponding set of physical resources; andtransmission periodicity associated with a network node corresponding to the corresponding set of physical resources.22.The method according to any one of claims 13 to 21, wherein the sets of reference signals comprise a first set of reference signals and a second set of reference signals; wherein,the first set of reference signals is associated with a first carrier, the second set of reference signals is associated with a second carrier, a time resource within a set of physical resources associated with the first set of reference signals overlaps partially or fully with a time resource within a set of physical resources associated with the second set of reference signals; orthe first set of reference signals is associated with a first network node of the set of two or more network nodes, the second set of reference signals is associated with a second network node of the set of two or more network nodes, a time resource associated with the first set of reference signals overlaps partially or fully with a time resource associated with the second set of reference signals.23.The method according to any one of claims 13 to 22, wherein the configuration information further indicates one or more of:a measurement order of the two or more network nodes;a measurement order of a carrier within each of the sets of physical resources;a rule when a collision occurs on the sets of reference signals;antenna ports associated with the sets of reference signals;beams associated with the sets of reference signals;transmit power associated with the sets of reference signals;quasi co-located relationship between the sets of reference signals;a first network node to which measurement information to be transmitted, wherein the measurement information is based on the sets of reference signals;work duration associated with a carrier within one of the sets of physical resources; andwork duration associated with one of the two or more network nodes.24.The method according to any one of claims 13 to 23, wherein a first network node is associated with a first set of one or more carriers, the first set of one or more carriers comprises one or more of: an initial access carrier, an anchor carrier, and a serving carrier, wherein the first network node is a network node that to which measurement information to be transmitted, and the measurement information is based on the sets of reference signals.25.The method according to any one of claims 13 to 24, wherein part or all of the set of two or more network nodes support at least one power saving mode.26.A communication method, comprising:generating at least one set of sets of reference signals, wherein the sets of reference signals are respectively associated with sets of physical resources, the sets of reference signals are associated with two or more network nodes, each of the sets of reference signals comprises one or more reference signals, each of the sets of physical resources comprises one or more physical resources, and a time resource within each of the sets of physical resources partially or fully overlap; andtransmitting the at least one set of the sets of reference signals.27.A communication method, comprising:receiving configuration information, wherein the configuration information indicates at least one set of carriers associated with one or more sets of reference signals, each of the set of carriers comprises one or more carriers, and the each of the set of carriers is associated with at least one public land mobile network (PLMN) ; andreceiving the at least one set of reference signals.28.A communication method, comprising:generating configuration information, wherein the configuration information indicates at least one set of carriers associated with one or more sets of reference signals, each of the set of carriers comprises one or more carriers, and the each of the set of carriers is associated with at least one public land mobile network (PLMN) ; andtransmitting the configuration information.29.A communication method, comprising:generating, by a first network node, configuration information, wherein the configuration information indicates sets of reference signals, the sets of reference signals are respectively associated with sets of physical resources, the sets of reference signals are associated with two or more network nodes, each of the sets of reference signals comprises one or more reference signals, each of the sets of physical resources comprises one or more physical resources, and a time resource within each of the sets of physical resources partially or fully overlap; andtransmitting, by the first network node, the configuration information to a second network node.30.A communication apparatus, configured to perform the method according to any one of claims 1 to 12, 13 to 25, 26, 27, 28 or 29.31.The communication apparatus of claim 30, wherein comprising:receiving unit, configured to receive configuration information, wherein the configuration information indicates sets of reference signals, the sets of reference signals are respectively associated with sets of physical resources, the sets of reference signals are associated with two or more network nodes, each of the sets of reference signals comprises one or more reference signals, each of the sets of physical resources comprises one or more physical resources, and a time resource within each of the sets of physical resources partially or fully overlap; andthe receiving unit, further configured to receive the sets of reference signals based on the configuration information.32.The communication apparatus of claim 30, comprising:generating unit, configured to generate configuration information, wherein the configuration information indicates sets of reference signals, the sets of reference signals are respectively associated with sets of physical resources, the sets of reference signals are associated with two or more network nodes, each of the sets of reference signals comprises one or more reference signals, each of the sets of physical resources comprises one or more physical resources, and a time resource within each of the sets of physical resources partially or fully overlap; andtransmitting unit, configured to transmit the configuration information.33.The communication apparatus of claim 30, comprising:generating unit, configured to generate at least one set of sets of reference signals, wherein the sets of reference signals are respectively associated with sets of physical resources, the sets of reference signals are associated with two or more network nodes, each of the sets of reference signals comprises one or more reference signals, each of the sets of physical resources comprises one or more physical resources, and a time resource within each of the sets of physical resources partially or fully overlap; andtransmitting unit, configured to transmit the at least one set of the sets of reference signals.34.The communication apparatus of claim 30, comprising:receiving unit, configured to receive configuration information, wherein the configuration information indicates at least one set of carriers associated with one or more sets of reference signals, each of the set of carriers comprises one or more carriers, and the each of the set of carriers is associated with at least one public land mobile network (PLMN) ; andthe receiving unit, further configured to receive the at least one set of reference signals.35.The communication apparatus of claim 30, comprising:generating unit, configured to generate configuration information, wherein the configuration information indicates at least one set of carriers associated with one or more sets of reference signals, each of the set of carriers comprises one or more carriers, and the each of the set of carriers is associated with at least one public land mobile network (PLMN) ; andtransmitting unit, configured to transmit the configuration information.36.The communication apparatus of claim 35, comprising:one or more processors, configured to perform processing step according to any one of claims 1 to 12, 13 to 25, 26, 27, 28 or 29;an interface circuit, configure to perform transmitting or receiving step according to any one of claims 1 to 12, 13 to 25, 26, 27, 28 or 29.37.The communication apparatus of claim 35, the interface circuit comprises one or more transceivers.38.An apparatus comprising:one or more processors; anda memory storing instructions which, when executed by the one or more processors, cause the apparatus to: perform the method of any one of claims 1 to 12, 13 to 25, 26, 27, 28 or 29.39.A communication system, wherein the communication system comprises a first communication apparatus configured to perform the method of any one of claims 1 to 12 and a second communication apparatus configured to perform the method of any one of claims 13 to 25.40.The communication system according to claim 38, wherein the communication system further comprises a third communication apparatus configured to perform the method of claim 26.41.A communication system, wherein the communication system comprises a first communication apparatus configured to perform the method of claim 27 and a second communication apparatus configured to perform the method of claim 28.42.A computer-readable storage medium having instructions stored thereon which, when executed by apparatus, cause the apparatus to perform the method of any one of 1 to 12, 13 to 25, 26, 27, 28 or 29.43.A computer program product having instructions which, when executed, cause an apparatus to perform the method of any one of claims 1 to 12, 13 to 25, 26, 27, 28 or 29.
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