WO2026030958A1 - Measurement changes associated with communication configuration changes - Google Patents
Measurement changes associated with communication configuration changesInfo
- Publication number
- WO2026030958A1 WO2026030958A1 PCT/CN2024/110288 CN2024110288W WO2026030958A1 WO 2026030958 A1 WO2026030958 A1 WO 2026030958A1 CN 2024110288 W CN2024110288 W CN 2024110288W WO 2026030958 A1 WO2026030958 A1 WO 2026030958A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- measurement
- ncsg
- configuration
- communication configuration
- network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
This disclosure relates to techniques for performing changes to measurement procedures in association with a change in communication and/or measurement configuration. A minimum transition time for a change can be determined and/or a new association for a previously unassociated measurement object can be determined.
Description
The present application relates to wireless communications, and more particularly to systems, apparatuses, and methods for communication including changes in measurement timing, association, and/or other changes in relation to communication configuration changes such as secondary cell activation/deactivation in a wireless communication system.
Wireless communication systems are rapidly growing in usage. In recent years, wireless devices such as smart phones and tablet computers have become increasingly sophisticated. In addition to supporting telephone calls, many mobile devices (i.e., user equipment devices or UEs) now provide access to the internet, email, text messaging, and navigation using the global positioning system (GPS) , and are capable of operating sophisticated applications that utilize these functionalities. Additionally, there exist numerous different wireless communication technologies and standards. Some examples of wireless communication standards include LTE, NR, IEEE 802.11 (WLAN or Wi-Fi) , BLUETOOTHTM, etc.
The ever-increasing number of features and functionality introduced in wireless communication devices also creates a continuous need for improvement in both wireless communications and in wireless communication devices. In particular, it is important to ensure the accuracy of transmitted and received signals through user equipment (UE) devices, e.g., through wireless devices such as cellular phones, base stations and relay stations used in wireless cellular communications. In addition, increasing the functionality of a UE device can place a significant strain on the battery life of the UE device. Thus, it is very important to also reduce power requirements in UE device designs while allowing the UE device to maintain good transmit and receive abilities for improved communications. Accordingly, improvements in the field are desired.
Embodiments are presented herein of apparatuses, systems, and methods for communication changes in measurement in relation to communication configuration changes such as secondary cell activation/deactivation in a wireless communication system.
According to one set of embodiments, a method, can comprise: communicating with a cellular network according to a first communication configuration and determining a minimum transition time, the minimum transition time associated with changing measurement type of one or more measurement object in association with changing communication configuration. The method can comprise, while the first communication configuration is in effect, performing at least one measurement of a first measurement occasion of a first measurement object transmitted by the cellular network according to a first measurement configuration. The method can comprise decoding, from the cellular network, an indication of a change to a second communication configuration. The method can comprise, while the second communication configuration is in effect, performing at least one measurement of a second measurement occasion of the first measurement object transmitted by the cellular network, wherein the second measurement occasion occurs after a delay of at least the minimum transition time from the indication of the change to the second communication configuration.
According to one set of embodiments, a method, can comprise: communicating with a cellular network according to a first communication configuration. The first communication configuration can comprise: communication via a secondary cell (SCell) ; and a first measurement configuration, the first measurement configuration comprising a plurality of measurement objects, wherein the plurality of measurement objects comprises: a first measurement object is associated with a first network configured small gap (NCSG) ; a second measurement object is associated with a second NCSG; and a third measurement object is not associated with any NCSG. The method can comprise decoding, from the cellular network, an indication of a change to a second communication configuration, the change to the second communication configuration comprising deactivation of the SCell. The method can comprise selecting one of the first NCSG or the second NCSG for performing measurement of future instances of the third measurement object; and performing measurement of at least one measurement occasion of the third measurement object in the selected one of the first NCSG or the second NCSG.
According to one set of embodiments, a method, can comprise: communicating with a user equipment (UE) according to a first communication configuration and determining a
minimum transition time, the minimum transition time associated with changing measurement type of one or more measurement object in association with changing communication configuration. The method can comprise, while the first communication configuration is in effect, transmitting a first measurement occasion of a first measurement object according to a first measurement configuration, wherein the first measurement occasion is useable for performing at least one measurement according to the first measurement configuration. The method can comprise transmitting, to the UE, an indication of a change to a second communication configuration. The method can comprise, while the second communication configuration is in effect, transmitting a second measurement occasion of the first measurement object, wherein the second measurement occasion occurs after a delay of at least the minimum transition time from the indication of the change to the second communication configuration and wherein the second measurement occasion is useable for performing at least one measurement according to second first measurement configuration.
According to one set of embodiments, a method, can comprise: communicating with a user equipment (UE) according to a first communication configuration. The first communication configuration can comprise: communication via a secondary cell (SCell) ; and a first measurement configuration. The first measurement configuration can comprise a plurality of measurement objects, wherein the plurality of measurement objects comprises: a first measurement object is associated with a first network configured small gap (NCSG) ; a second measurement object is associated with a second NCSG; and a third measurement object is not associated with any NCSG. The method can comprise transmitting, to the UE, an indication of a change to a second communication configuration, the change to the second communication configuration comprising deactivation of the SCell. The method can comprise selecting one of the first NCSG or the second NCSG for measurement of future instances of the third measurement object; and transmitting, to the UE, at least one measurement occasion of the third measurement object in the selected one of the first NCSG or the second NCSG, the at least one measurement occasion useable for performing measurement.
Note that the techniques described herein can be implemented in and/or used with a number of different types of devices, including but not limited to base stations, access points, cellular phones, portable media players, tablet computers, wearable devices, unmanned aerial vehicles, unmanned aerial controllers, automobiles and/or motorized vehicles, and various other computing devices.
This Summary is intended to provide a brief overview of some of the subject matter described in this document. Accordingly, it will be appreciated that the above-described
features are merely examples and should not be construed to narrow the scope or spirit of the subject matter described herein in any way. Other features, aspects, and advantages of the subject matter described herein will become apparent from the following Detailed Description, Figures, and Claims.
A better understanding of the present subject matter can be obtained when the following detailed description of various embodiments is considered in conjunction with the following drawings.
Figure 1 illustrates an example (and simplified) wireless communication system, according to some embodiments.
Figure 2 illustrates an example base station in communication with an example wireless user equipment (UE) device, according to some embodiments.
Figure 3 illustrates an example block diagram of a UE, according to some embodiments.
Figure 4 illustrates an example block diagram of a base station, according to some embodiments.
Figure 5 is a communication flow diagram illustrating aspects of an example possible method for communication including changes in measurement timing, association, and/or other changes, in relation to communication configuration changes such as secondary cell activation/deactivation, according to some embodiments.
Figures 6-14 illustrate example aspects of various possible approaches to communication and changes in measurement in relation to communication configuration changes such as secondary cell activation/deactivation, according to some embodiments.
While features described herein are susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the drawings and detailed description thereto are not intended to be limiting to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the subject matter as defined by the appended claims.
Acronyms
Various acronyms are used throughout the present disclosure. Definitions of the most prominently used acronyms that can appear throughout the present disclosure are provided below:
· UE: User Equipment
· RF: Radio Frequency
· BS: Base Station
· LTE: Long Term Evolution
· NR: New Radio
· TX: Transmission/Transmit
· RX: Reception/Receive
· RAT: Radio Access Technology
· PDCCH: Physical Downlink Control Channel
· TRP: Transmission-Reception-Point
· TCI: Transmission Control Indicator
· DCI: Downlink Control Information
· CSI: Channel State Information
· CQI: Channel Quality Indicator
· NCSG: Network-controlled Small Gap
Terms
The following is a glossary of terms that can appear in the present disclosure:
Memory Medium –Any of various types of non-transitory memory devices or storage devices. The term “memory medium” is intended to include an installation medium, e.g., a CD-ROM, floppy disks, or tape device; a computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc. ; a non-volatile memory such as a Flash, magnetic media, e.g., a hard drive, or optical storage; registers, or other similar types of memory elements, etc. The memory medium can include other types of non-transitory memory as well or combinations thereof. In addition, the memory medium can be located in a first computer system in which the programs are executed, or can be located in a second different computer system which connects to the first computer system over a network, such as the Internet. In the latter instance, the second computer system can provide program
instructions to the first computer system for execution. The term “memory medium” can include two or more memory mediums which can reside in different locations, e.g., in different computer systems that are connected over a network. The memory medium can store program instructions (e.g., embodied as computer programs) that can be executed by one or more processors.
Carrier Medium –a memory medium as described above, as well as a physical transmission medium, such as a bus, network, and/or other physical transmission medium that conveys signals such as electrical, electromagnetic, or digital signals.
Computer System (or Computer) –any of various types of computing or processing systems, including a personal computer system (PC) , mainframe computer system, workstation, network appliance, Internet appliance, personal digital assistant (PDA) , television system, grid computing system, or other device or combinations of devices. In general, the term "computer system" can be broadly defined to encompass any device (or combination of devices) having at least one processor that executes instructions from a memory medium.
User Equipment (UE) (or “UE Device” ) –any of various types of computer systems or devices that are mobile or portable and that perform wireless communications. Examples of UE devices include mobile telephones or smart phones (e.g., iPhoneTM, AndroidTM-based phones) , tablet computers (e.g., iPadTM, Samsung GalaxyTM) , portable gaming devices (e.g., Nintendo DSTM, PlayStation PortableTM, Gameboy AdvanceTM, iPhoneTM) , wearable devices (e.g., smart watch, smart glasses) , laptops, PDAs, portable Internet devices, music players, data storage devices, other handheld devices, automobiles and/or motor vehicles, unmanned aerial vehicles (UAVs) (e.g., drones) , UAV controllers (UACs) , etc. In general, the term “UE” or “UE device” can be broadly defined to encompass any electronic, computing, and/or telecommunications device (or combination of devices) which is easily transported by a user and capable of wireless communication.
Wireless Device –any of various types of computer systems or devices that perform wireless communications. A wireless device can be portable (or mobile) or can be stationary or fixed at a certain location. A UE is an example of a wireless device.
Communication Device –any of various types of computer systems or devices that perform communications, where the communications can be wired or wireless. A communication device can be portable (or mobile) or can be stationary or fixed at a certain location. A wireless device is an example of a communication device. A UE is another example of a communication device.
Base Station (BS) –The term "Base Station" has the full breadth of its ordinary meaning, and at least includes a wireless communication station installed at a fixed location and used to communicate as part of a wireless telephone system or radio system.
Processing Element (or Processor) –refers to various elements or combinations of elements that are capable of performing a function in a device, e.g., in a user equipment device or in a cellular network device. Processing elements can include, for example: processors and associated memory, portions or circuits of individual processor cores, entire processor cores, processor arrays, circuits such as an ASIC (Application Specific Integrated Circuit) , programmable hardware elements such as a field programmable gate array (FPGA) , as well any of various combinations of the above.
Wi-Fi –The term "Wi-Fi" has the full breadth of its ordinary meaning, and at least includes a wireless communication network or RAT that is serviced by wireless LAN (WLAN) access points and which provides connectivity through these access points to the Internet. Most modern Wi-Fi networks (or WLAN networks) are based on IEEE 802.11 standards and are marketed under the name “Wi-Fi” . A Wi-Fi (WLAN) network is different from a cellular network.
Automatically –refers to an action or operation performed by a computer system (e.g., software executed by the computer system) or device (e.g., circuitry, programmable hardware elements, ASICs, etc. ) , without user input directly specifying or performing the action or operation. Thus, the term "automatically" is in contrast to an operation being manually performed or specified by the user, where the user provides input to directly perform the operation. An automatic procedure can be initiated by input provided by the user, but the subsequent actions that are performed “automatically” are not specified by the user, i.e., are not performed “manually” , where the user specifies each action to perform. For example, a user filling out an electronic form by selecting each field and providing input specifying information (e.g., by typing information, selecting check boxes, radio selections, etc. ) is filling out the form manually, even though the computer system must update the form in response to the user actions. The form can be automatically filled out by the computer system where the computer system (e.g., software executing on the computer system) analyzes the fields of the form and fills in the form without any user input specifying the answers to the fields. As indicated above, the user can invoke the automatic filling of the form, but is not involved in the actual filling of the form (e.g., the user is not manually specifying answers to fields but rather they are being automatically completed) . The present specification provides various examples of operations being automatically performed in response to actions the user has taken.
Configured to –Various components can be described as “configured to” perform a task or tasks. In such contexts, “configured to” is a broad recitation generally meaning “having structure that” performs the task or tasks during operation. As such, the component can be configured to perform the task even when the component is not currently performing that task (e.g., a set of electrical conductors can be configured to electrically connect a module to another module, even when the two modules are not connected) . In some contexts, “configured to” can be a broad recitation of structure generally meaning “having circuitry that” performs the task or tasks during operation. As such, the component can be configured to perform the task even when the component is not currently on. In general, the circuitry that forms the structure corresponding to “configured to” can include hardware circuits.
Various components can be described as performing a task or tasks, for convenience in the description. Such descriptions should be interpreted as including the phrase “configured to. ” Reciting a component that is configured to perform one or more tasks is expressly intended not to invoke 35 U.S.C. § 112, paragraph six, interpretation for that component.
Figures 1 and 2 –Example Communication System
Figure 1 illustrates an example (and simplified) wireless communication system in which aspects of this disclosure can be implemented, according to some embodiments. It is noted that the system of Figure 1 is merely one example of a possible system, and embodiments can be implemented in any of various systems, as desired.
As shown, the example wireless communication system includes a base station 102 which communicates over a transmission medium with one or more (e.g., an arbitrary number of) user devices 106A, 106B, etc. through 106N. Each of the user devices can be referred to herein as a “user equipment” (UE) or UE device. Thus, the user devices 106 are referred to as UEs or UE devices.
The base station 102 can be a base transceiver station (BTS) or cell site, and can include hardware and/or software that enables wireless communication with the UEs 106A through 106N. If the base station 102 is implemented in the context of LTE, it can alternately be referred to as an 'eNodeB' or 'eNB' . If the base station 102 is implemented in the context of 5G NR, it can alternately be referred to as a 'gNodeB' or 'gNB' . The base station 102 can also be equipped to communicate with a network 100 (e.g., a core network of a cellular service provider, a telecommunication network such as a public switched telephone network (PSTN) , and/or the Internet, among various possibilities) . Thus, the base station 102 can facilitate communication among the user devices and/or between the user devices and the network 100.
The communication area (or coverage area) of the base station can be referred to as a “cell. ” As also used herein, from the perspective of UEs, a base station can sometimes be considered as representing the network insofar as uplink and downlink communications of the UE are concerned. Thus, a UE communicating with one or more base stations in the network can also be interpreted as the UE communicating with the network.
The base station 102 and the user devices can be configured to communicate over the transmission medium using any of various radio access technologies (RATs) , also referred to as wireless communication technologies, or telecommunication standards, such as LTE, LTE-Advanced (LTE-A) , LAA/LTE-U, 5G NR, Wi-Fi, etc.
Base station 102 and other similar base stations operating according to the same or a different cellular communication standard can thus be provided as one or more networks of cells, which can provide continuous or nearly continuous overlapping service to UE 106 and similar devices over a geographic area via one or more cellular communication standards.
Note that a UE 106 can be capable of communicating using multiple wireless communication standards. For example, a UE 106 might be configured to communicate using either or both of a 3GPP cellular communication standard or a 3GPP2 cellular communication standard. In some embodiments, the UE 106 can be configured to perform techniques for communication including changes in measurement timing, association, and/or other changes in relation to communication configuration changes such as secondary cell activation/deactivation, such as according to the various methods described herein. The UE 106 might also or alternatively be configured to communicate using WLAN, BLUETOOTHTM, one or more global navigational satellite systems (GNSS, e.g., GPS or GLONASS) , one and/or more mobile television broadcasting standards (e.g., ATSC-M/H) , etc. Other combinations of wireless communication standards (including more than two wireless communication standards) are also possible.
Figure 2 illustrates an example user equipment 106 (e.g., one of the devices 106A through 106N) in communication with the base station 102, according to some embodiments. The UE 106 can be a device with wireless network connectivity such as a mobile phone, a hand-held device, a wearable device, a computer or a tablet, an unmanned aerial vehicle (UAV) , an unmanned aerial controller (UAC) , an automobile, or virtually any type of wireless device. The UE 106 can include a processor (processing element) that is configured to execute program instructions stored in memory. The UE 106 can perform any of the method embodiments described herein by executing such stored instructions. Alternatively, or in
addition, the UE 106 can include a programmable hardware element such as an FPGA (field-programmable gate array) , an integrated circuit, and/or any of various other possible hardware components that are configured to perform (e.g., individually or in combination) any of the method embodiments described herein, or any portion of any of the method embodiments described herein. The UE 106 can be configured to communicate using any of multiple wireless communication protocols. For example, the UE 106 can be configured to communicate using two or more of CDMA2000, LTE, LTE-A, 5G NR, WLAN, or GNSS. Other combinations of wireless communication standards are also possible.
The UE 106 can include one or more antennas for communicating using one or more wireless communication protocols according to one or more RAT standards. In some embodiments, the UE 106 can share one or more parts of a receive chain and/or transmit chain between multiple wireless communication standards. The shared radio can include a single antenna, or can include multiple antennas (e.g., for multiple-input, multiple-output or “MIMO” ) for performing wireless communications. In general, a radio can include any combination of a baseband processor, analog RF signal processing circuitry (e.g., including filters, mixers, oscillators, amplifiers, etc. ) , or digital processing circuitry (e.g., for digital modulation as well as other digital processing) . Similarly, the radio can implement one or more receive and transmit chains using the aforementioned hardware. For example, the UE 106 can share one or more parts of a receive and/or transmit chain between multiple wireless communication technologies, such as those discussed above.
In some embodiments, the UE 106 can include any number of antennas and can be configured to use the antennas to transmit and/or receive directional wireless signals (e.g., beams) . Similarly, the BS 102 can also include any number of antennas and can be configured to use the antennas to transmit and/or receive directional wireless signals (e.g., beams) . To receive and/or transmit such directional signals, the antennas of the UE 106 and/or BS 102 can be configured to apply different “weight” to different antennas. The process of applying these different weights can be referred to as “precoding” .
In some embodiments, the UE 106 can include separate transmit and/or receive chains (e.g., including separate antennas and other radio components) for each wireless communication protocol with which it is configured to communicate. As a further possibility, the UE 106 can include one or more radios that are shared between multiple wireless communication protocols, and one or more radios that are used exclusively by a single wireless communication protocol. For example, the UE 106 can include a shared radio for communicating using either of LTE or NR (and/or other RATs) , and separate radios for
communicating using each of Wi-Fi and BLUETOOTHTM. Other configurations are also possible.
In some embodiments, the UE 106 can include multiple subscriber identity modules (SIMs, sometimes referred to as SIM cards) . In other words, the UE 106 can be a multi-SIM (MUSIM) device, such as a dual-SIM device. Any of the various SIMs can be physical SIMs (e.g., SIM cards) or embedded (e.g., virtual) SIMs. Any combination of physical and/or virtual SIMs can be included. Each SIM can provide various services (e.g., packet switched and/or circuit switched services) to the user. In some embodiments, UE 106 can share common receive (Rx) and/or transmit (Tx) chains for multiple SIMs (e.g., UE 106 can have a dual SIM dual standby architecture) . Other architectures are possible. For example, UE 106 can be a dual SIM dual active architecture, can include separate Tx and/or Rx chains for the various SIMs, can include more than two SIMs, etc.
The different identities (e.g., different SIMs) can have different identifiers, e.g., different UE identities (UE IDs) . For example, an international mobile subscriber identity (IMSI) can be an identity associated with a SIM (e.g., in a MUSIM device each SIM can have its own IMSI) . The IMSI can be unique. Similarly, each SIM can have its own unique international mobile equipment identity (IMEI) . Thus, the IMSI and/or IMEI can be examples of possible UE IDs, however other identifiers can be used as UE ID.
The different identities can have the same or different relationships to various public land mobile networks (PLMNs) . For example, a first identity can have a first home PLMN, while a second identity can have a different home PLMN. In such cases, one identity can be camped on a home network (e.g., on a cell provided by BS 102) while another identity can be roaming (e.g., while also camped on the same cell provided by BS 102, or a different cell provided by the same or different BS 102) . In other circumstances, multiple identities can be concurrently home (e.g., on the same or different cells of the same or different networks) or can be concurrently roaming (e.g., on the same or different cells of the same or different networks) . As will be appreciated, numerous combinations are possible. For example, two SIM subscriptions on a MUSIM device can belong to the same equivalent/carrier (e.g., AT&T/AT&T or CMCC/CMCC) . As another example possibility, SIM-Acan be roaming into SIM-B’s network (SIM-ACMCC user roaming into AT&T and SIM-B is also AT&T) .
Figure 3 –Block Diagram of an Example UE Device
Figure 3 illustrates a block diagram of an example UE 106, according to some embodiments. As shown, the UE 106 can include a system on chip (SOC) 300, which can
include portions for various purposes. For example, as shown, the SOC 300 can include processor (s) 302 which can execute program instructions for the UE 106 and display circuitry 304 which can perform graphics processing and provide display signals to the display 360. The SOC 300 can also include sensor circuitry 370, which can include components for sensing or measuring any of a variety of possible characteristics or parameters of the UE 106. For example, the sensor circuitry 370 can include motion sensing circuitry configured to detect motion of the UE 106, for example using a gyroscope, accelerometer, and/or any of various other motion sensing components. As another possibility, the sensor circuitry 370 can include one or more temperature sensing components, for example for measuring the temperature of each of one or more antenna panels and/or other components of the UE 106. Any of various other possible types of sensor circuitry can also or alternatively be included in UE 106, as desired. The processor (s) 302 can also be coupled to memory management unit (MMU) 340, which can be configured to receive addresses from the processor (s) 302 and translate those addresses to locations in memory (e.g., memory 306, read only memory (ROM) 350, NAND flash memory 310) and/or to other circuits or devices, such as the display circuitry 304, radio 330, connector I/F 320, and/or display 360. The MMU 340 can be configured to perform memory protection and page table translation or set up. In some embodiments, the MMU 340 can be included as a portion of the processor (s) 302.
As shown, the SOC 300 can be coupled to various other circuits of the UE 106. For example, the UE 106 can include various types of memory (e.g., including NAND flash 310) , a connector interface 320 (e.g., for coupling to a computer system, dock, charging station, etc. ) , the display 360, and wireless communication circuitry 330 (e.g., for LTE, LTE-A, NR, CDMA2000, BLUETOOTHTM, Wi-Fi, GPS, etc. ) . The UE device 106 can include or couple to at least one antenna (e.g., 335a) , and possibly multiple antennas (e.g., illustrated by antennas 335a and 335b) , for performing wireless communication with base stations and/or other devices. Antennas 335a and 335b are shown by way of example, and UE device 106 can include fewer or more antennas. Overall, the one or more antennas are collectively referred to as antenna 335. For example, the UE device 106 can use antenna 335 to perform the wireless communication with the aid of radio circuitry 330. The communication circuitry can include multiple receive chains and/or multiple transmit chains for receiving and/or transmitting multiple spatial streams, such as in a multiple-input multiple output (MIMO) configuration. As noted above, the UE can be configured to communicate wirelessly using multiple wireless communication standards in some embodiments.
The UE 106 can include hardware and software components for implementing methods for changes in measurement timing in relation to communication configuration changes such as secondary cell activation/deactivation in a wireless communication system, such as described further subsequently herein. The processor (s) 302 of the UE device 106 can be configured to implement part or all the methods described herein, e.g., by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium) . In other embodiments, processor (s) 302 can be configured as a programmable hardware element, such as an FPGA (Field Programmable Gate Array) , or as an ASIC (Application Specific Integrated Circuit) . Furthermore, processor (s) 302 can be coupled to and/or can interoperate with other components as shown in Figure 3, to perform techniques changes in measurement timing, association, and/or other changes, in relation to communication configuration changes such as cell activation/deactivation in a wireless communication system according to various embodiments disclosed herein. Processor (s) 302 can also implement various other applications and/or end-user applications running on UE 106.
In some embodiments, radio 330 can include separate controllers dedicated to controlling communications for various respective RAT standards. For example, as shown in Figure 3, radio 330 can include a Wi-Fi controller 352, a cellular controller (e.g., LTE and/or LTE-A controller) 354, and BLUETOOTHTM controller 356, and in at least some embodiments, one or more or all of these controllers can be implemented as respective integrated circuits (ICs or chips, for short) in communication with each other and with SOC 300 (and more specifically with processor (s) 302) . For example, Wi-Fi controller 352 can communicate with cellular controller 354 over a cell-ISM link or WCI interface, and/or BLUETOOTHTM controller 356 can communicate with cellular controller 354 over a cell-ISM link, etc. While three separate controllers are illustrated within radio 330, other embodiments have fewer or more similar controllers for various RATs that can be implemented in UE device 106.
Further, embodiments in which controllers can implement functionality associated with multiple radio access technologies are also envisioned. For example, according to some embodiments, the cellular controller 354 can, in addition to hardware and/or software components for performing cellular communication, include hardware and/or software components for performing one or more activities associated with Wi-Fi, such as Wi-Fi preamble detection, and/or generation and transmission of Wi-Fi physical layer preamble signals.
Figure 4 –Block Diagram of an Example Base Station
Figure 4 illustrates a block diagram of an example base station 102, according to some embodiments. It is noted that the base station of Figure 4 is merely one example of a possible base station. As shown, the base station 102 can include processor (s) 404 which can execute program instructions for the base station 102. The processor (s) 404 can also be coupled to memory management unit (MMU) 440, which can be configured to receive addresses from the processor (s) 404 and translate those addresses to locations in memory (e.g., memory 460 and read only memory (ROM) 450) or to other circuits or devices.
The base station 102 can include at least one network port 470. The network port 470 can be configured to couple to a telephone network and provide a plurality of devices, such as UE devices 106, access to the telephone network as described above in Figures 1 and 2. The network port 470 (or an additional network port) can also or alternatively be configured to couple to a cellular network, e.g., a core network of a cellular service provider. The core network can provide mobility related services and/or other services to a plurality of devices, such as UE devices 106. In some cases, the network port 470 can couple to a telephone network via the core network, and/or the core network can provide a telephone network (e.g., among other UE devices serviced by the cellular service provider) .
In some embodiments, base station 102 can be a next generation base station, e.g., a 5G New Radio (5G NR) base station, or “gNB” . In such embodiments, base station 102 can be connected to a legacy evolved packet core (EPC) network and/or to a NR core (NRC) network. In addition, base station 102 can be considered a 5G NR cell and can include one or more transmission and reception points (TRPs) . In addition, a UE capable of operating according to 5G NR can be connected to one or more TRPs within one or more gNBs.
The base station 102 can include at least one antenna 434, and possibly multiple antennas. The antenna (s) 434 can be configured to operate as a wireless transceiver and can be further configured to communicate with UE devices 106 via radio 430. The antenna (s) 434 communicates with the radio 430 via communication chain 432. Communication chain 432 can be a receive chain, a transmit chain or both. The radio 430 can be designed to communicate via various wireless telecommunication standards, including, but not limited to, 5G NR, 5G NR SAT, LTE, LTE-A, Wi-Fi, etc.
The base station 102 can be configured to communicate wirelessly using multiple wireless communication standards. In some instances, the base station 102 can include multiple radios, which can enable the base station 102 to communicate according to multiple wireless communication technologies. For example, as one possibility, the base station 102
can include an LTE radio for performing communication according to LTE as well as a 5G NR radio for performing communication according to 5G NR. In such a case, the base station 102 can be capable of operating as both an LTE base station and a 5G NR base station. As another possibility, the base station 102 can include a multi-mode radio which is capable of performing communications according to any of multiple wireless communication technologies (e.g., 5G NR and Wi-Fi, 5G NR SAT and Wi-Fi, LTE and Wi-Fi, LTE and NR or NR SAT, a larger number of RATs, etc. ) .
As described further subsequently herein, the BS 102 can include hardware and software components for implementing or supporting implementation of features described herein. The processor 404 of the base station 102 can be configured to implement and/or support implementation of part or all the methods described herein, e.g., by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium) . Alternatively, the processor 404 can be configured as a programmable hardware element, such as an FPGA (Field Programmable Gate Array) , or as an ASIC (Application Specific Integrated Circuit) , or a combination thereof. In the case of certain RATs, for example Wi-Fi, base station 102 can be designed as an access point (AP) , in which case network port 470 can be implemented to provide access to a wide area network and/or local area network (s) , e.g., it can include at least one Ethernet port, and radio 430 can be designed to communicate according to the Wi-Fi standard.
In addition, as described herein, processor (s) 404 can include one or more processing elements. Thus, processor (s) 404 can include one or more integrated circuits (ICs) that are configured to perform the functions of processor (s) 404. In addition, each integrated circuit can include circuitry (e.g., first circuitry, second circuitry, etc. ) configured to perform the functions of processor (s) 404.
Further, as described herein, radio 430 can include one or more processing elements. Thus, radio 430 can include one or more integrated circuits (ICs) that are configured to perform the functions of radio 430. In addition, each integrated circuit can include circuitry (e.g., first circuitry, second circuitry, etc. ) configured to perform the functions of radio 430.
Reference Signals and Measurements
A wireless device, such as a user equipment, can be configured to perform a variety of tasks that include the use of reference signals (RSs) provided by one or more cellular base stations. For example, initial access and beam measurement by a wireless device can be performed based at least in part on synchronization signal blocks (SSBs) provided by one or
more cells provided by one or more cellular base stations within communicative range of the wireless device. Another type of reference signal commonly provided in a cellular communication system can include channel state information (CSI) RS. Various types of a CSI-RS can be provided for tracking (e.g., for time and frequency offset tracking) , beam management (e.g., with repetition configured, to assist with determining one or more beams to use for uplink and/or downlink communication) , and/or channel measurement (e.g., CSI-RS configured in a resource set for measuring the quality of the downlink channel and reporting information related to this quality measurement to the base station) , among various possibilities. For example, in the case of CSI-RS for CSI acquisition, the UE can periodically perform channel measurements and send channel state information (CSI) to a BS. The base station can then receive and use this channel state information to determine an adjustment of various parameters during communication with the wireless device. In particular, the BS can use the received channel state information to adjust the coding of its downlink transmissions to improve downlink channel quality.
In many cellular communication systems, the base station can transmit some or all such reference signals (or pilot signals) , such as SSB and/or CSI-RS, on a periodic basis. In some instances, aperiodic reference signals (e.g., for aperiodic CSI reporting) can also or alternatively be provided.
As a detailed example, in the 3GPP NR cellular communication standard, the channel state information fed back (e.g., transmitted via PUCCH or other signaling/channel) from the UE based on CSI-RS for CSI acquisition can include one or more of a channel quality indicator (CQI) , a precoding matrix indicator (PMI) , a rank indicator (RI) , a CSI-RS Resource Indicator (CRI) , a SSBRI (SS/PBCH Resource Block Indicator, and a Layer Indicator (LI) , at least according to some embodiments.
The channel quality information can be provided to the base station for link adaptation, e.g., for providing guidance as to which modulation &coding scheme (MCS) the base station should use when it transmits data. For example, when the downlink channel communication quality between the base station and the UE is determined to be high, the UE can transmit uplink control signals to a base station that include an indication of a high CQI value, which can cause the base station to transmit data using a relatively high modulation order and/or a low channel coding rate. As another example, when the downlink channel communication quality between the base station and the UE is determined to be low, the UE can transmit uplink control signals to a base station that include an indication of a low CQI value, which can cause
the base station to transmit data using a relatively low modulation order and/or a high channel coding rate.
PMI feedback can include preferred precoding matrix information, and can be provided to a base station in order to indicate which MIMO precoding scheme the base station should use. In other words, the UE can measure the quality of a downlink MIMO channel between the base station and the UE, based on a pilot signal received on the channel, and can recommend, through PMI feedback, which MIMO precoding is desired to be applied by the base station. In some cellular systems, the PMI configuration is expressed in matrix form, which provides for linear MIMO precoding. The base station and the UE can share a codebook composed of multiple precoding matrixes, where each MIMO precoding matrix in the codebook can have a unique index. Accordingly, as part of the channel state information fed back by the UE, the PMI can include an index (or possibly multiple indices) corresponding to the most preferred MIMO precoding matrix (or matrixes) in the codebook. This can enable the UE to minimize the amount of feedback information. Thus, the PMI can indicate which precoding matrix from a codebook should be used for transmissions to the UE, at least according to some embodiments.
The rank indicator information (RI feedback) can indicate a number of transmission layers that the UE determines can be supported by the channel, e.g., when the base station and the UE have multiple antennas, which can enable multi-layer transmission through spatial multiplexing. The RI and the PMI can collectively allow the base station to know which precoding needs to be applied to which layer, e.g., depending on the number of transmission layers.
In some cellular systems, a PMI codebook is defined depending on the number of transmission layers. In other words, for R-layer transmission, N number of Nt×R matrixes can be defined (e.g., where R represents the number of layers, Nt represents the number of transmitter antenna ports, and N represents the size of the codebook) . In such a scenario, the number of transmission layers (R) can conform to a rank value of the precoding matrix (Nt ×R matrix) , and hence in this context R can be referred to as the “rank indicator (RI) ” .
Thus, the channel state information can include an allocated rank (e.g., a rank indicator or RI) . For example, a MIMO-capable UE communicating with a BS can include four receiver chains, e.g., can include four antennas. The BS can also include four or more antennas to enable MIMO communication (e.g., 4 x 4 MIMO) . Thus, the UE can be capable of receiving up to four (or more) signals (e.g., layers) from the BS concurrently. Layer to antenna mapping can be applied, e.g., each layer can be mapped to any number of antenna ports (e.g., antennas) .
Each antenna port can send and/or receive information associated with one or more layers. The rank can include multiple bits and can indicate the number of signals that the BS can send to the UE in an upcoming time period (e.g., during an upcoming transmission time interval or TTI) . For example, an indication of rank 4 can indicate that the BS will send 4 signals to the UE. As one possibility, the RI can be two bits in length (e.g., since two bits are sufficient to distinguish 4 different rank values) . Note that other numbers and/or configurations of antennas (e.g., at either or both of the UE or the BS) and/or other numbers of data layers are also possible, according to various embodiments.
Figure 5 –Measurement timing and/or other changes in association with SCell (de-) activation
A network can configure one or more measurement objects (MOs) for measurement by one or more UEs. The MOs can be on one or more carrier and/or one or more cell.
A measurement gap is a time domain concept, during which UE can tune its RF chain (s) away from one or more (e.g., serving) carrier to one or more target carrier so that UE can perform measurement on target carrier (s) . During the measurement gap, since there is no available RF chain for serving carrier (s) there is no data transmission/reception with serving cell (s) .
Aspects of the method of Figure 5 can be implemented by a wireless device, e.g., in conjunction with one or more cells, cellular base stations, and/or transmission/reception points (TRPs) , such as a UE 106 and a BS 102 illustrated in and described with respect to various of the Figures herein, or more generally in conjunction with any of the computer circuitry, systems, devices, elements, or components shown in the above Figures, among others, as desired. For example, a processor (and/or other hardware) of such a device can be configured to perform or cause the device to perform any combination of the illustrated method elements and/or other method elements.
Note that while at least some elements of the method of Figure 5 are described in a manner relating to the use of communication techniques and/or features associated with 3GPP and/or NR specification documents, such description is not intended to be limiting to the disclosure, and aspects of the method of Figure 5 can be used in any suitable wireless communication system, as desired. In various embodiments, some of the elements of the methods shown can be performed concurrently, in a different order than shown, can be substituted for by other method elements, or can be omitted. Additional method elements can also be performed as desired. As shown, the method of Figure 5 can operate as follows.
The UE can communicate via one or more wireless link with a cellular network (502) , according to some embodiments. According to some embodiments, the wireless link can include a cellular link according to 5G NR. For example, the UE can establish a session with an AMF or other entity of the cellular network by way of one or more base stations (e.g., TRPs and/or gNBs, etc. ) that provide radio access to the cellular network. As another possibility, the wireless link can include a cellular link according to LTE. Other types of cellular links are also possible, and the cellular network can also or alternatively operate according to another cellular communication technology according to various embodiments.
For example, a processor of the UE can encode and/or decode any of various types of information/messages to/from the network, various examples of such encoding and/or decoding are discussed below.
Communicating via the wireless link can include establishing a radio resource control (RRC) connection with a serving cellular base station, at least according to some embodiments. Establishing the RRC connection can include configuring various parameters for communication between the UE and the cellular base station, establishing context information for the UE, and/or any of various other possible features, e.g., relating to establishing an air interface for the UE to perform cellular communication with a cellular network associated with the cellular base station. After establishing the RRC connection, the UE can operate in a RRC connected state. In some instances, the RRC connection can also be released (e.g., after a certain period of inactivity with respect to data communication) , in which case the UE can operate in a RRC idle state or a RRC inactive state. In some instances, the UE can perform handover (e.g., while in RRC connected mode) or cell re-selection (e.g., while in RRC idle or RRC inactive mode) to a new serving cell, e.g., due to UE mobility, changing wireless medium conditions, and/or for any of various other possible reasons.
At least according to some embodiments, the UE can use and/or establish multiple wireless links, e.g., with multiple TRPs of the cellular network, according to a multi-TRP configuration. The UE can be configured (e.g., via RRC signaling) with one or more TCIs, e.g., which can correspond to various beams that can be used to communicate with the TRPs. Further, it can be the case that one or more configured TCI states can be activated (e.g., by RRC, media access control (MAC) control element (CE) , and/or DCI signaling) for the UE at a particular time. For example, multiple TCI states can be activated.
The wireless links can be associated with corresponding control resource set (s) (CORESETs) and/or search space set (s) (SSSs) , according to some embodiments. For
example, a first TCI state can be associated with a first CORESET and/or SSS, among various possibilities.
At least in some instances, using/establishing the wireless link (s) can include the UE providing capability information for the UE. Such capability information can include information relating to any of a variety of types of UE capabilities.
At least in some instances, using/establishing the wireless link (s) can include the UE exchanging configuration information with the network. Among various possibilities, the configuration information can include information related to measurement upon communication configuration changes such as SCell activation/deactivation. For example, the configuration information can include information about reference signals (RS) , MOs, etc. The configuration information can include information about parameters to be used prior to, during, and/or after such a change.
The configuration information can be exchanged via RRC, MAC-CE, and/or other signaling, among various possibilities.
As one possibility, the network can indicate a first communication configuration for the UE. The first communication configuration can include communication with one or more cells. For example, one or more primary cells (PCells) and/or one or more secondary cells (SCells) can be configured. In some embodiments, a plurality of SCells can be configured (e.g., by RRC) and a subset of the SCells can be activated by MAC-CE. For example, a first communication configuration can include one or more active carriers and one or more active cells.
Further, the network can configure the UE with a first measurement configuration. The first measurement configuration can be associated with the first communication configuration. For example, a measurement configuration such as the first measurement configuration can include measurement of one or more MOs on the active and/or inactive carriers and active and/or inactive cells of the first communication configuration.
A measurement configuration such as the first measurement configuration can include timing information related to the MOs and measurement of the MOs. For example, the timing information can include parameters such as measurement gap repetition periodicity (MGRP) , measurement gap length (MGL) , measurement gap offset, synchronization signal block (SSB) measurement timing configuration (SMTC) of the first measurement object, cell-specific scaling factor (CSSF) , network controlled small gap (NCSG) , visible interruption length (VIL) , visible interruption repetition period (VIRP) .
Figure 6 illustrates a measurement gap (MG) , according to some embodiments. As shown, during the measurement gap, the UE can be unavailable on carrier 1 while changing to/from carrier 2 (which can be an inter-frequency layer, e.g., another cell) and performing reception of a MO (e.g., SSB) on carrier 2. Note that type 1 and/or type 2 MGs can be specified in the measurement configuration.
NCSG is distinct from legacy MG types. NCSG was introduced in Release 17 of NR (see, e.g., 3GPP document RP-211591) . One use of NCSG is that UE can use additional RF chain (if available) to measure target carrier without tuning another RF chain away from the serving cell (s) so that UE can continue data exchange (e.g., uplink and/or downlink) with serving cell (s) while measuring another carrier (s) . Note that switching on/off of the additional RF can cause interruption to other serving cells.
Figure 7 illustrates an NCSG, according to some embodiments. As shown in Figure 7, the interruptions of NCSG can be limited within the VIL which can be configured by network. In other words, VIL can be the length of time period that the UE can be unavailable on serving carrier (s) both before and after measuring on a different carrier. Thus, VILs can occur in pairs (e.g., one pair being the VILs before and after the measuring) . VIRP can be the interval at which the pairs of VILs occur.
Further, a measurement configuration can include an association between measurement objects and NCSGs, among various possibilities. For example, one MO can be associated with a first NCSG (meaning it is configured to be measured between the VILs of one NCSG) . For example, in Figure 7, the SSB of carrier 2 can be associated with the illustrated NCSG.
In some embodiments, the configuration information can include information about measurement parameters related to when to perform the first/initial measurement (s) after a change in configuration and/or parameters for ongoing measurements, such as what, if any NCSG or MG to use following a change. Such parameters can be dictated by the network and/or can be based on UE capabilities.
In some embodiments, the UE can provide capability information to the network indicating one or more minimum transition time. For example, a minimum transition time that the UE is capable of switching from one measurement type to another measurement type can be specified by the UE. The minimum transition time can be referred to as delta t or Δt, e.g., as shown in Figure 9. The minimum transition time can describe when to perform the first/initial measurement (s) after a change in configuration.
The minimum transition time can indicate a minimum amount of time (e.g., a processing delay) between an indication of a change in communication configuration (e.g., SCell deactivation as in Figure 9, among various possibilities) and a measurement according to a new configuration (e.g., in association with an NCSG, as in the example of Fig. 9) . It will be appreciated that Fig. 9 illustrates one of various possible examples. The change in measurement type can be a change from measuring an MO in association with an NCSG to measuring the MO in association with a different NCSG or not in association with an NCSG. The change in measurement type can (e.g., or can not) include use of an MG, either before or after the change without gap or NCSG. Example measurement types include: legacy gap based RRM measurement, NCSG based RRM measurement and RRM measurement, among various possibilities. Similarly, the change in configuration can be or include SCell (de-) activation, primary secondary cell (PSCell) (de-) activation, measurement gap reconfiguration, NCSG reconfiguration, etc.
Further, multiple minimum transition times can be indicated, according to some embodiments. For example, the UE can indicate the same or different minimum transition times for different frequency ranges (e.g., FR1 vs FR2) and/or different transition types (e.g., from inside of MG to NCSG, from outside of MG to inside of MG, in association with SCell de-activation vs in association with SCell activation, etc. ) .
Further, configuration information exchanged between the UE and the network can include information about how updated measurement parameters are to be determined in association with a change in communication configuration. For example, the configuration information can indicate one or more method for determining an updated association between MO and NCSG. Further details on determining such an association are discussed below regarding 512.
The network and the UE (e.g., a processor of the UE) can (e.g., separately, in 504b and 504a, respectively) determine a minimum transition time (504) , according to some embodiments. Such a minimum transition time can take any of various possible values, including, but not limited to: 1ms, 2ms, 3ms, 5ms, etc.
As one possibility, the minimum transition time can be determined based on capability of the UE (e.g., as discussed with respect to 502) . For example, one or more applicable minimum transition time can be determined based on the UE capability indicated in 502 and relevant context, e.g., transition type, frequency range, etc.
As another possibility, the minimum transition time can be determined based on a wireless communication standard (e.g., 3GPP NR) in effect for communication between the
UE and network. For example, one or more applicable minimum transition time can be determined based on the standard (s) and relevant context, e.g., transition type, frequency range, etc.
It will be appreciated that 504 (e.g., 504a and/or 504b) can occur at various times, according to some embodiments. For example, 504 can occur during or concurrently with one or more of 502, 510, and/or 512, among various possibilities. 504 can occur before or after these times.
It will be appreciated that 504 (e.g., 504a and/or 504b) can be omitted, according to some embodiments. For example, such a transition time can be set in standards or can be determined solely by the network, among various possibilities. In some embodiments, no minimum transition time can be applied.
The network can transmit MO (s) to the UE (506) , according to some embodiments. The MOs can be consistent with the first measurement configuration. For example, one or more RS can be transmitted according to the frequencies, times, and/or spatial relations associated with the first measurement configuration.
Additional MOs can also be sent, e.g., including aperiodic RS and/or occurrences of MOs sent at times, frequencies, and/or spatial relations other than those specified by the first measurement configuration.
The UE (e.g., a processor of the UE) can receive and measure MO (s) (508) , according to some embodiments. The measurement (s) can measure the MOs according to the first measurement configuration. For example, the UE can measure the RSs at the frequencies, times, and/or spatial relations associated with the first measurement configuration. For example, the UE can measure RS of one CC at a time associated with that CC and RS of a different CC at a different time, e.g., according to the first measurement configuration.
The measurements can include any of various types of measurements, including signal strength, signal quality, CQI, CSI, PMI, RI, etc.
The network can determine a configuration change for the UE (510) , according to some embodiments. The configuration change can include changing from the first communication configuration to a second communication configuration, changing from the first measurement configuration to a second measurement configuration, or both, among various possibilities.
Examples of changing communication configuration can include at least SCell (de-) activation and primary secondary cell (PSCell) (de-) activation. Examples of changing
measurement configuration can include at least measurement gap reconfiguration, NCSG reconfiguration, etc.
It will be appreciated that a change in communication configuration can include a change in measurement configuration. For example, as further discussed below, a change in communication configuration can cause a change in relevant measurement parameters, such as a MO previously not associated with an NCSG later (e.g., after the change in communication configuration) requiring a NCSG or other gap.
The network can transmit an indication of the configuration change to the UE, according to some embodiments. The indication can be either explicit or implicit or both. The indication can be transmitted using any type of signaling, e.g., RRC, MAC-CE, etc. For example, the indication can be a MAC-CE activating or deactivating an SCell, CC, etc. An example of an indication that is both explicit and implicit is a MAC-CE (e.g., explicitly) deactivating an SCell which triggers the UE (e.g., implicitly) to change a measurement configuration with respect to a MO transmitted by the SCell (e.g., as further described below with respect to 512) .
In some embodiments, the network can determine a timing for transmission of the indication. For example, the network can determine to transmit the indication at a time selected based on the minimum transition time (e.g., as determined in 504, if applicable) in relation to a next occasion of one or more relevant MO. For example, the network can choose to trigger the configuration (e.g., measurement type) change earlier than an applicable minimum transition time relative to an upcoming occasion of a relevant MO. Triggering the change before the minimum transition time can avoid ambiguity about whether a measurement is performed and/or avoid the measurement occasion being unmeasured.
The UE (e.g., a processor of the UE) can receive and decode the indication of the configuration change and/or detect an implicitly indicated configuration change.
The UE (e.g., a processor of the UE) and the network can (e.g., separately, in 512a and 512b, respectively) determine measurement parameters (512) applicable after the configuration change, according to some embodiments. The measurement parameters can include a) when to perform the first/initial measurement (s) after the change and/or b) parameters for ongoing measurements, such as what, if any NCSG or MG to use. In other words, parameters for a second measurement configuration, applicable during and/or after the change, can be determined.
It will be appreciated that the measurement parameters can be determined for one or more MOs, and that the parameters can be the same or different for different MOs. For
example, same or different minimum transition times can apply to different MOs and/or same or different ongoing parameters can be selected. For the discussion of 512, note that multiple determinations can be made, e.g., different determinations can be made for different MOs configured for the UE. In other words, MO-specific parameters can be determined in 512 (as in other steps such as 504, 508, and 516, etc. ) .
Regarding the measurement parameters of when to perform the first/initial measurements, the UE and the network can apply the relevant minimum transition time (s) (e.g., as determined in 504) and can determine what, if any additional delay applies.
As discussed above, the minimum transition time is the time for the UE to finish the measurement type transition. In other words, the UE/processor is ready to perform measurement according to the new measurement configuration after the relevant minimum transition time after the indication of the change (e.g., 510) If a new measurement occasion/sample comes before end of the minimum transition time, the UE can be allowed to skip the sample and restart measurement cycle upon the change (e.g. SCell deactivation or other change in 510) .
Further, in the event that a measurement occasion is missed (e.g., due to the occasion occurring prior to the minimum transition time) , an additional delay can be determined, according to some embodiments. The additional delay can be an extension to a measurement period for the relevant MO. The additional delay can allow for the UE to take one or more additional sample (s) of the MO by measuring an additional occasion (s) of the MO for performing the measurement. Said another way, the UE can skip an intermediate measurement occasion of the MO and extend a measurement period for the MO by an additional delay, so that a second occasion of the MO (after the change in 510) can be used during the extended period.
In other words, since UE has not finished measurement type transition processing when the intermediate measurement occasion comes (before the minimum transition time) , it cannot measure it successfully. Thus, the intermediate sample of the MO would be missed. Then UE needs to take one more sample at the second measurement occasion such that an appropriate accuracy can be achieved. This extra sample can only be taken when it overlaps with UE measurement occasion, e.g. covered by NCSG if the MO is measured within NCSG, or simply extended to the next SMTC occasion. Thus, the additional delay can allow is different than the minimum transition time and can allow for this additional measurement of the second measurement occasion.
In some embodiments, if multiple potential additional delay values could apply (e.g., to a single MO) , the longer additional delay can be selected. For example, the longer delay could be determined so that the cell identification and measurement period requirements with the longer delay. This could be the case when the measurement on one intra-frequency measurement object transitions from measurements performed outside of MGs changes to measurements performed within NCSG or vice versa during one measurement period. Similarly, this could be the case when the measurement on one intra-frequency measurement object transitions from measurements performed within MGs changes to measurements performed within NCSG or vice versa during one measurement period. As another example, if after a measurement type transition the MO is measured with NCSG, then the measurement period can be extended by the larger of SMTC period on that carrier or NCSG period (e.g., the VIRP) . Further, if after measurement type transition the MO is measured outside of an MG, then the measurement period can be extended by SMTC period of that carrier.
Regarding the measurement parameters for ongoing measurements of the MO, these parameters can include updates to the associations between various MOs and various NCSGs.
For example, for the case wherein UE is configured with NCSG (s) without association provided for a MO on a SCC that is deactivated by the updated configuration (e.g., indicated in 510) , a new association can be determined for the MO. An example of this case is illustrated in Fig. 10, according to some embodiments. As shown, the MO on frequency F2 can be on an active SCell and not associated with any NCSG. In the event that the SCell is deactivated, continuing to measure the MO on frequency F2 can be useful for measuring the deactivated SCell. However, such a measurement can require association with an NCSG.
Thus, selecting a NCSG association for any MO that is unassociated prior to the change in configuration and needs to be associated with an NCSG after the change can be accomplished using one or more rules, according to some embodiments. Figures 11-14 illustrate various example rules for selecting a new association. In particular, if two or more NCSG are configured, these rules can be used to determine the updated parameters including which NCSG to associate with for a previously unassociated MO. For example, when two NCSG are configured, each NCSG is used to measure different MO groups, each MO group can include one or more MO.
Figure 11 illustrates the application of a rule that the UE shall measure the previously unassociated SCC MO within the NCSG which has smaller CSSF value, according to some embodiments. CSSF is used to scale the measurement delay with number of carriers or MOs
to be measured. Thus, adding an additional MO to the NCSG with the smaller CSSF can maintain balance (e.g., in terms of CSSF) between the NCSGs.
Figure 12 illustrates the application of a rule that the UE shall measure the previously unassociated SCC MO within the NCSG which is not used to measure the PCell. As shown, NCSG2 includes the PCC MO (e.g., an MO of the PCell) , and thus NCSG 1 is selected for the MO5 of the SCC. This rule can prioritize PCell measurements.
Figure 13 and Figure 14 illustrate the application of a rule that the UE shall measure the previously unassociated SCC MO within the NCSG which is used for a same cell group (CG) . In other words, the previously unassociated MO can be grouped with other MOs of the same cell group. In the example of Figure 13, the previously unassociated MO5 is part of the secondary cell group (SCG) and is thus grouped into NCSG 2 with other SCG MOs. In the example of Figure 14, the previously unassociated MO5 is part of the master cell group (MCG) and is thus grouped into NCSG 1 with other MCG MOs.
As a further possibility, the network can indicate which option to use. In other words, the network can indicate whether to apply a rule of using the NCSG with smaller CSSF (as in Fig. 11) , using an NCSG that does not measure the PCell (as in Fig. 12) , or using the NCSG with the same CG (as in Figs. 13 and 14) , among various possibilities. Note that this is different from providing association between the SCC MO and NCSG. Legacy association is fixed regardless of SCell status. The various rules discussed above can be used to somehow balance the measurement delay of different MOs, e.g., as desired or according to network prioritization. For example, the network could also achieve different priorities for different MO by assigning different options to use. The indication of what rule to use can be indicated at various times, e.g., during 502 or 510, among various possibilities. For example, the indication of rules can be in RRC (e.g., as part of configuration information) or in MAC-CE (e.g., together with SCell deactivation in 510) , among various possibilities.
The network can transmit MO (s) to the UE (514) , according to some embodiments. The MOs can be consistent with the second measurement configuration. For example, one or more RS can be transmitted according to the frequencies, times, and/or spatial relations associated with the second measurement configuration.
Additional MOs can also be sent, e.g., including aperiodic RS and/or occurrences of MOs sent at times, frequencies, and/or spatial relations other than those specified by the second measurement configuration.
The UE (e.g., a processor of the UE) can receive and measure MO (s) (516) , according to some embodiments. The measurement (s) can measure the MOs according to the second
measurement configuration. For example, the UE can measure the RSs at the frequencies, times, and/or spatial relations associated with the second measurement configuration. For example, the UE can measure RS of one CC at a time associated with that CC and RS of a different CC at a different time, e.g., according to the second measurement configuration.
For example, the measurements can be performed according to the minimum transition time of 504 and any additional delay as discussed with respect to 512. In other words, and MO occasions that occur prior to the end of the minimum transition time can be skipped. If applicable, a measurement period can be extended by an additional delay period.
Similarly, ongoing measurements can be performed according to parameters as discussed with respect to 512. For example, previously unassociated MOs can be measured in association with one or more NCSG selected as discussed above.
Thus, at least according to some embodiments, the method of Figure 5 can be used to provide a framework according to which a UE and network can change timing, association, and/or other parameters in relation to SCell activation and/or deactivation, and thus to assist the network to effectively and efficiently schedule and perform wireless communications with the UE, at least in some instances. It will be appreciated that in some instances, various timing, association, and/or other parameters can not be changed in relation to SCell activation and/or deactivation, e.g., depending on circumstances of the particular situation.
As noted above, the order shown in Figure 5 is only one example. For instance, it will be appreciated that 512 can occur prior to 510, e.g., 512 can be performed during 502, etc. Similarly, 512 can be omitted, e.g., no parameters other than the minimum transition time can be determined or applied. Similarly, 504 can be omitted, e.g., no minimum transition time can be determined or applied. Numerous other variations and examples are possible.
Similarly, any of these steps can be repeated any number of times (e.g., as a UE moves, etc. ) . Further, any of these steps can be performed for one or more MO, e.g., different MOs can be handled the same or differently.
Additional information and examples
UE measurement on SCC when the SCell is deactivated has been discussed for several meetings in RAN4. The latest agreements can be found in R4-2410376. These agreements include Issue 3-2-1 (Case 2) , noting that 1) processing delay between NCSG and type 1 or 2 MG are not resolved and 2) that existing measurement delay requirements do not apply for a UE with multiple NCSG and at least one MO not associated with any NCSG.
According to a first set of embodiments, a method, can comprise: communicating with a cellular network according to a first communication configuration and determining a minimum transition time, the minimum transition time associated with changing measurement type of one or more measurement object in association with changing communication configuration. The method can comprise, while the first communication configuration is in effect, performing at least one measurement of a first measurement occasion of a first measurement object transmitted by the cellular network according to a first measurement configuration. The method can comprise decoding, from the cellular network, an indication of a change to a second communication configuration. The method can comprise, while the second communication configuration is in effect, performing at least one measurement of a second measurement occasion of the first measurement object transmitted by the cellular network, wherein the second measurement occasion occurs after a delay of at least the minimum transition time from the indication of the change to the second communication configuration.
The method of the first set of embodiments, wherein the first measurement object transmitted by the cellular network comprises an intra-frequency measurement object.
The method of the first set of embodiments, wherein a measurement cycle is restarted upon the indication to change to the second communication configuration.
The method of the first set of embodiments, wherein the minimum transition time applies when at least one measurement object changes from one measurement type to another measurement type of a plurality of measurement types.
The method of the first set of embodiments, wherein the plurality of measurement types includes at least one of: measurement during a measurement gap; measurement during a network configured small gap (NCSG) ; or measurement outside of a measurement gap or NCSG.
The method of the first set of embodiments, wherein the change to the second communication configuration comprises at least one of: secondary cell (SCell) activation; SCell deactivation; primary SCell (PSCell) activation; PSCell deactivation; measurement gap reconfiguration; or network configured small gap (NCSG) reconfiguration.
The method of the first set of embodiments, wherein the minimum transition time is set by a 3GPP wireless standard.
The method of the first set of embodiments, further comprising: encoding, for transmission to the cellular network, an indication of a minimum transition time capability,
wherein the minimum transition time is not shorter than the minimum transition time capability.
The method of the first set of embodiments, wherein the minimum transition time is frequency range specific, wherein different minimum transition times apply for different frequency ranges.
The method of the first set of embodiments, wherein the minimum transition time is transition type specific, wherein different minimum transition times apply for different transitions between different measurement types.
The method of the first set of embodiments, further comprising: decoding an indication from the cellular network of the minimum transition time.
The method of the first set of embodiments, wherein an intermediate measurement occasion of the first measurement object transmitted by the cellular network is not measured, the intermediate measurement occasion occurring between the first measurement occasion and the second measurement occasion, wherein the intermediate measurement occasion occurs after a delay of less than the minimum transition time from the indication of the change to the second communication configuration.
The method of the first set of embodiments, wherein the second measurement occasion is selected as a first opportunity for measurement while the second communication configuration is in effect based on the second measurement occasion being associated with a longest delay of a plurality of applicable delays.
The method of the first set of embodiments, wherein: the first measurement occasion of the first measurement object transmitted by the cellular network is measured outside of a measurement gap; the second measurement occasion of the first measurement object transmitted by the cellular network is measured within a network configured small gap (NCSG) ; and the longest delay is based on a maximum of: a synchronization signal block (SSB) measurement timing configuration (SMTC) of the first measurement object; or a period of the NCSG.
The method of the first set of embodiments, wherein: the first measurement occasion of the first measurement object transmitted by the cellular network is measured within a measurement gap; the second measurement occasion of the first measurement object transmitted by the cellular network is measured within a network configured small gap (NCSG) ; and the longest delay is based on a maximum of: a synchronization signal block (SSB) measurement timing configuration (SMTC) of the first measurement object; or a period of the NCSG.
The method of the first set of embodiments, wherein the period of the NCSG comprises a visible interruption repetition period (VIRP) .
The method of the first set of embodiments, wherein: the first measurement occasion of the first measurement object transmitted by the cellular network is measured within a network configured small gap (NCSG) ; the second measurement occasion of the first measurement object transmitted by the cellular network is measured outside of an NCSG and either within a measurement gap or outside of a measurement gap; and the longest delay is based on a synchronization signal block (SSB) measurement timing configuration (SMTC) of the first measurement object.
The method of the first set of embodiments, wherein the method is performed by a processor.
The method of the first set of embodiments, wherein the method is performed by a UE.
According to a second set of embodiments, a method, can comprise: communicating with a cellular network according to a first communication configuration. The first communication configuration can comprise: communication via a secondary cell (SCell) ; and a first measurement configuration, the first measurement configuration comprising a plurality of measurement objects, wherein the plurality of measurement objects comprises: a first measurement object is associated with a first network configured small gap (NCSG) ; a second measurement object is associated with a second NCSG; and a third measurement object is not associated with any NCSG. The method can comprise decoding, from the cellular network, an indication of a change to a second communication configuration, the change to the second communication configuration comprising deactivation of the SCell. The method can comprise selecting one of the first NCSG or the second NCSG for performing measurement of future instances of the third measurement object; and performing measurement of at least one measurement occasion of the third measurement object in the selected one of the first NCSG or the second NCSG.
The method of the second set of embodiments, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being associated with a smaller cell-specific scaling factor (CSSF) .
The method of the second set of embodiments, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being used to measure only SCells.
The method of the second set of embodiments, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG not being used to measure a primary cell (PCell) .
The method of the second set of embodiments, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being used to measure measurement objects of a same cell group (CG) as the third measurement object.
The method of the second set of embodiments, further comprising: decoding, from the cellular network, an indication of a network-selected method to use for said selecting.
The method of the second set of embodiments, wherein the network-selected method comprises one of: wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being associated with a smaller cell-specific scaling factor (CSSF) ; wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG not being used to measure a primary cell (PCell) ; or wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being used to measure measurement objects of a same cell group (CG) as the third measurement object.
The method of the second set of embodiments, wherein the indication of the network-selected method comprises a radio resource control (RRC) configuration.
The method of the second set of embodiments, wherein the indication of the network-selected method comprises a media access control (MAC) control element (MAC-CE) .
The method of the second set of embodiments, wherein the MAC-CE comprises the indication of the change to the second communication configuration.
The method of the second set of embodiments, wherein the third measurement object comprises a secondary component carrier (SCC) .
The method of the second set of embodiments, wherein the third measurement object comprises one of: a primary component carrier (PCC) ; or a primary secondary component carrier (PSCC) .
The method of the second set of embodiments, wherein the method is performed by a processor.
The method of the second set of embodiments, wherein the method is performed by a UE.
According to a third set of embodiments, a method, can comprise: communicating with a user equipment (UE) according to a first communication configuration and determining a
minimum transition time, the minimum transition time associated with changing measurement type of one or more measurement object in association with changing communication configuration. The method can comprise, while the first communication configuration is in effect, transmitting a first measurement occasion of a first measurement object according to a first measurement configuration, wherein the first measurement occasion is useable for performing at least one measurement according to the first measurement configuration. The method can comprise transmitting, to the UE, an indication of a change to a second communication configuration. The method can comprise, while the second communication configuration is in effect, transmitting a second measurement occasion of the first measurement object, wherein the second measurement occasion occurs after a delay of at least the minimum transition time from the indication of the change to the second communication configuration and wherein the second measurement occasion is useable for performing at least one measurement according to second first measurement configuration.
The method of the third set of embodiments, wherein the first measurement object comprises an intra-frequency measurement object.
The method of the third set of embodiments, wherein a measurement cycle is restarted upon the indication to change to the second communication configuration.
The method of the third set of embodiments, wherein the minimum transition time applies when at least one measurement object changes from one measurement type to another measurement type of a plurality of measurement types.
The method of the third set of embodiments, wherein the plurality of measurement types includes: measurement during a measurement gap; measurement during a network configured small gap (NCSG) ; and measurement outside of a measurement gap or NCSG.
The method of the third set of embodiments, wherein the change to the second communication configuration comprises at least one of: secondary cell (SCell) activation; SCell deactivation; primary SCell (PSCell) activation; PSCell deactivation; measurement gap reconfiguration; or network configured small gap (NCSG) reconfiguration.
The method of the third set of embodiments, wherein the minimum transition time is set by a 3GPP wireless standard.
The method of the third set of embodiments, further comprising: receiving, from the UE, an indication of a minimum transition time capability, wherein the minimum transition time is not shorter than the minimum transition time capability.
The method of the third set of embodiments, wherein the minimum transition time is frequency range specific, wherein different minimum transition times apply for different frequency ranges.
The method of the third set of embodiments, wherein the minimum transition time is transition type specific, wherein different minimum transition times apply for different transitions between different measurement types.
The method of the third set of embodiments, further comprising: transmitting, to the UE, an indication of the minimum transition time.
The method of the third set of embodiments, wherein an intermediate measurement occasion of the first measurement object is not measured, the intermediate measurement occasion occurring between the first measurement occasion and the second measurement occasion, wherein the intermediate measurement occasion occurs after a delay of less than the minimum transition time from the indication of the change to the second communication configuration.
The method of the third set of embodiments, wherein the second measurement occasion is selected as a first opportunity for measurement while the second communication configuration is in effect based on the second measurement occasion being associated with a longest delay of a plurality of applicable delays.
The method of the third set of embodiments, wherein: the first measurement occasion of the first measurement object is transmitted outside of a measurement gap of the UE; the second measurement occasion of the first measurement object is transmitted within a network configured small gap (NCSG) of the UE; and the longest delay is based on a maximum of: a synchronization signal block (SSB) measurement timing configuration (SMTC) of the first measurement object; or a period of the NCSG.
The method of the third set of embodiments, wherein: the first measurement occasion of the first measurement object is transmitted within a measurement gap of the UE; the second measurement occasion of the first measurement object is transmitted within a network configured small gap (NCSG) of the UE; and the longest delay is based on a maximum of: a synchronization signal block (SSB) measurement timing configuration (SMTC) of the first measurement object; or a period of the NCSG.
The method of the third set of embodiments, wherein the period of the NCSG comprises a visible interruption repetition period (VIRP) .
The method of the third set of embodiments, wherein: the first measurement occasion of the first measurement object is transmitted within a network configured small gap (NCSG)
of the UE; the second measurement occasion of the first measurement object is transmitted outside of an NCSG of the UE and either within a measurement gap of the UE or outside of a measurement gap of the UE; and the longest delay is based on a synchronization signal block (SSB) measurement timing configuration (SMTC) of the first measurement object.
According to a fourth set of embodiments, a method, can comprise: communicating with a user equipment (UE) according to a first communication configuration. The first communication configuration can comprise: communication via a secondary cell (SCell) ; and a first measurement configuration. The first measurement configuration can comprise a plurality of measurement objects, wherein the plurality of measurement objects comprises: a first measurement object is associated with a first network configured small gap (NCSG) ; a second measurement object is associated with a second NCSG; and a third measurement object is not associated with any NCSG. The method can comprise transmitting, to the UE, an indication of a change to a second communication configuration, the change to the second communication configuration comprising deactivation of the SCell. The method can comprise selecting one of the first NCSG or the second NCSG for measurement of future instances of the third measurement object; and transmitting, to the UE, at least one measurement occasion of the third measurement object in the selected one of the first NCSG or the second NCSG, the at least one measurement occasion useable for performing measurement.
The method of the fourth set of embodiments, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being associated with a smaller cell-specific scaling factor (CSSF) .
The method of the fourth set of embodiments, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being used to measure only SCells.
The method of the fourth set of embodiments, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG not being used to measure a primary cell (PCell) .
The method of the fourth set of embodiments, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being used to measure measurement objects of a same cell group (CG) as the third measurement object.
The method of the fourth set of embodiments, further comprising: transmitting, to the UE, an indication of a network-selected method to use for said selecting.
The method of the fourth set of embodiments, wherein the network-selected method comprises one of: wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being associated with a smaller cell-specific scaling factor (CSSF) ; wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG not being used to measure a primary cell (PCell) ; or wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being used to measure measurement objects of a same cell group (CG) as the third measurement object.
The method of the fourth set of embodiments, wherein the indication of the network-selected method comprises a radio resource control (RRC) configuration.
The method of the fourth set of embodiments, wherein the indication of the network-selected method comprises a media access control (MAC) control element (MAC-CE) .
The method of the fourth set of embodiments, wherein the MAC-CE comprises the indication of the change to the second communication configuration.
The method of the fourth set of embodiments, wherein the third measurement object comprises a secondary component carrier (SCC) .
The method of the fourth set of embodiments, wherein the third measurement object comprises one of: a primary component carrier (PCC) ; or a primary secondary component carrier (PSCC) .
A further example embodiment can include a method, comprising: performing, by a wireless device, any or all parts of the preceding examples.
A further example embodiment can include a processor configured to perform any or all parts of the preceding examples, e.g., when executing program instructions.
A further example embodiment can include an apparatus, comprising: a processor configured to, when executing instructions stored in a memory, perform a method according to any of the preceding examples.
Another example embodiment can include a device, comprising: an antenna; a radio coupled to the antenna; and a processing element operably coupled to the radio, wherein the device is configured to implement any or all parts of the preceding examples.
A further example set of embodiments can include a non-transitory computer accessible memory medium comprising program instructions which, when executed at a device, cause the device to implement any or all parts of any of the preceding examples.
A still further example set of embodiments can include a computer program comprising instructions for performing any or all parts of any of the preceding examples.
Yet another example set of embodiments can include an apparatus comprising means for performing any or all of the elements of any of the preceding examples.
Still another example set of embodiments can include an apparatus comprising a processing element configured to cause a wireless device to perform any or all of the elements of any of the preceding examples.
It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled so as to minimize risks of unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users.
Any of the methods described herein for operating a user equipment (UE) or a processor can be the basis of a corresponding method for operating a base station or cellular network, by interpreting each message/signal X received/decoded by the UE or processor in the downlink as message/signal X transmitted by the base station or cellular network, and each message/signal Y transmitted/encoded in the uplink by the UE/processor as a message/signal Y received by the base station or cellular network.
Embodiments of the present disclosure can be realized in any of various forms. For example, in some embodiments, the present subject matter can be realized as a computer-implemented method, a computer-readable memory medium, or a computer system. In other embodiments, the present subject matter can be realized using one or more custom-designed hardware devices such as ASICs. In other embodiments, the present subject matter can be realized using one or more programmable hardware elements such as FPGAs.
In some embodiments, a non-transitory computer-readable memory medium (e.g., a non-transitory memory element) can be configured so that it stores program instructions and/or data, where the program instructions, if executed by a computer system, cause the computer system to perform a method, e.g., any of a method embodiments described herein, or, any combination of the method embodiments described herein, or, any subset of any of the method embodiments described herein, or, any combination of such subsets.
In some embodiments, a device (e.g., a UE) can be configured to include a processor (or a set of processors) and a memory medium (or memory element) , where the memory medium stores program instructions, where the processor is configured to read and execute the program instructions from the memory medium, where the program instructions are executable
to implement any of the various method embodiments described herein (or, any combination of the method embodiments described herein, or, any subset of any of the method embodiments described herein, or, any combination of such subsets) . The device can be realized in any of various forms.
Although the embodiments above have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art once the above disclosure is fully appreciated. It is intended that the following claims be interpreted to embrace all such variations and modifications.
Claims (20)
- A method, comprising:communicating with a cellular network according to a first communication configuration;determining a minimum transition time, the minimum transition time associated with changing measurement type of one or more measurement object in association with changing communication configuration;while the first communication configuration is in effect, performing at least one measurement of a first measurement occasion of a first measurement object transmitted by the cellular network according to a first measurement configuration;decoding, from the cellular network, an indication of a change to a second communication configuration;while the second communication configuration is in effect, performing at least one measurement of a second measurement occasion of the first measurement object transmitted by the cellular network, wherein the second measurement occasion occurs after a delay of at least the minimum transition time from the indication of the change to the second communication configuration.
- The method of claim 1, wherein the first measurement object transmitted by the cellular network comprises an intra-frequency measurement object.
- The method of claim 1, wherein a measurement cycle is restarted upon the indication to change to the second communication configuration.
- The method of claim 1, wherein the minimum transition time applies when at least one measurement object changes from one measurement type to another measurement type of a plurality of measurement types.
- The method of claim 4, wherein the plurality of measurement types includes at least one of:measurement during a measurement gap;measurement during a network configured small gap (NCSG) ; andmeasurement outside of a measurement gap or NCSG.
- The method of claim 1, wherein the change to the second communication configuration comprises at least one of:secondary cell (SCell) activation;SCell deactivation;primary SCell (PSCell) activation;PSCell deactivation;measurement gap reconfiguration; ornetwork configured small gap (NCSG) reconfiguration.
- The method of claim 1, wherein the minimum transition time is set by a 3GPP wireless standard.
- The method of claim 1, further comprising:encoding, for transmission to the cellular network, an indication of a minimum transition time capability, wherein the minimum transition time is not shorter than the minimum transition time capability.
- The method of claim 1, wherein the minimum transition time is frequency range specific, wherein different minimum transition times apply for different frequency ranges.
- The method of claim 1, wherein the minimum transition time is transition type specific, wherein different minimum transition times apply for different transitions between different measurement types.
- A method, comprising:communicating with a cellular network according to a first communication configuration, the first communication configuration comprising:communication via a secondary cell (SCell) ; anda first measurement configuration, the first measurement configuration comprising a plurality of measurement objects, wherein the plurality of measurement objects comprises:a first measurement object associated with a first network configured small gap (NCSG) ;a second measurement object associated with a second NCSG; anda third measurement object not associated with any NCSG;decoding, from the cellular network, an indication of a change to a second communication configuration, the change to the second communication configuration comprising deactivation of the SCell;selecting one of the first NCSG or the second NCSG for performing measurement of future instances of the third measurement object; andperforming measurement of at least one measurement occasion of the third measurement object in the selected one of the first NCSG or the second NCSG.
- The method of claim 11, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being associated with a smaller cell-specific scaling factor (CSSF) .
- The method of claim 11, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being used to measure only SCells.
- The method of claim 11, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG not being used to measure a primary cell (PCell) .
- The method of claim 11, wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being used to measure measurement objects of a same cell group (CG) as the third measurement object.
- The method of claim 11, further comprising:decoding, from the cellular network, an indication of a network-selected method to use for said selecting.
- The method of claim 16, wherein the network-selected method comprises one of:wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being associated with a smaller cell-specific scaling factor (CSSF) ;wherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG not being used to measure a primary cell (PCell) ; orwherein said selecting comprises selecting an NCSG based on the selected one of the first NCSG or the second NCSG being used to measure measurement objects of a same cell group (CG) as the third measurement object.
- The method of claim 16, wherein the indication of the network-selected method comprises a radio resource control (RRC) configuration.
- The method of claim 16, wherein the indication of the network-selected method comprises a media access control (MAC) control element (MAC-CE) .
- A method, comprising:communicating with a user equipment (UE) according to a first communication configuration;determining a minimum transition time, the minimum transition time associated with changing measurement type of one or more measurement object in association with changing communication configuration;while the first communication configuration is in effect, transmitting a first measurement occasion of a first measurement object according to a first measurement configuration, wherein the first measurement occasion is useable for performing at least one measurement according to the first measurement configuration;transmitting, to the UE, an indication of a change to a second communication configuration; andwhile the second communication configuration is in effect, transmitting a second measurement occasion of the first measurement object, wherein the second measurement occasion occurs after a delay of at least the minimum transition time from the indication of the change to the second communication configuration and wherein the second measurement occasion is useable for performing at least one measurement according to second first measurement configuration.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2026030958A1 true WO2026030958A1 (en) | 2026-02-12 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12402117B2 (en) | Channel state information reporting for multi-transmission-reception-point operation | |
| US12402050B2 (en) | Neighbor cell measurements | |
| US12457072B2 (en) | Quasi-co-located assumption for aperiodic CSI-RS for multi-TRP operation | |
| US20230319611A1 (en) | Intelligent NR Object Prioritization for 5G Service | |
| US20250071589A1 (en) | Inter Radio Access Technology Measurement without Measurement Gap | |
| WO2023150929A1 (en) | Machine learning assisted beam selection | |
| WO2022067851A1 (en) | Performing physical uplink shared channel transmissions with improved reliability | |
| WO2023245469A1 (en) | Measurement gaps with multi-subscriber identity module operation | |
| WO2026030958A1 (en) | Measurement changes associated with communication configuration changes | |
| US12439418B2 (en) | Mapping unified transmission states for multipoint control channel reception using rules | |
| US12425892B2 (en) | Dynamically mapping unified transmission states for multipoint control channel reception | |
| WO2024092754A1 (en) | L1 measurement configuration for inter-cell mobility | |
| WO2024026599A1 (en) | Semi-statically mapping unified transmission states for multipoint control channel reception | |
| WO2025065475A1 (en) | L1-l2 triggered cell switch | |
| WO2024060136A1 (en) | Unified transmission configuration indication states for multipoint downlink operation using single control information | |
| WO2023201685A1 (en) | Primary secondary cell handover in unlicensed spectrum |