Method and apparatus for configuring ue behavior for unicast dci
Patent Information
- Application Number
- CN202480089836.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2026-10-30
AI Technical Summary
然而,用信号通知配置可能不是显而易见的
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Figure CN123023429A_ABST
Abstract
Description
Background Technology
[0001] All aspects of this disclosure relate to wireless communication in general, and more specifically to apparatus and methods for configuring user equipment (UE) behavior in response to a unicast downlink control indicator (DCI).
[0002] Wireless communication networks are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, and broadcasting. These systems can be multiple access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, and Single Carrier Frequency Division Multiple Access (SC-FDMA) systems.
[0003] These multiple access technologies have already been adopted in various telecommunications standards to provide a common protocol that enables different wireless devices to communicate at the city, national, regional, and even global levels. For example, fifth-generation (5G) wireless communication technology (which may be referred to as New Radio (NR)) is designed to expand and support a diverse range of use cases and applications relative to current mobile network generations. In one aspect, 5G communication technologies can include: enhanced mobile broadband addressing for human-centric use cases for accessing multimedia content, services, and data; ultra-reliable low-latency communication (URLLC) with certain specifications regarding latency and reliability; and massive machine-type communication that allows for the transmission of a very large number of connected devices and a relatively small amount of non-latency-sensitive information. However, with the continued increase in demand for mobile broadband access, further improvements to NR communication technologies, and technologies beyond them, are likely to be expected.
[0004] In wireless communication networks, beamforming has become a dominant technique for increasing data upload / download speeds. Various beam parameters may require proper configuration at the UE. However, signaling this configuration may not be straightforward. Given the complexity and timing of resources allocated to the UE, appropriately signaling the configuration to the UE via unicast can be challenging for the base station (BS). Therefore, improvements may be desired. Summary of the Invention
[0005] The following is a simplified summary of one or more aspects to provide a basic understanding of these aspects. This summary is not a broad overview of all anticipated aspects, nor is it intended to identify key or essential elements of all aspects, nor to describe the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that follows.
[0006] Aspects of this disclosure include methods for: receiving a unicast downlink control indicator (DCI) indicating one or more transmission power control (TPC) commands, each of the one or more TPC commands being associated with a UL CC in one or more uplink (UL) component carriers (CCs), at least one of the one or more UL CCs being configured with at least one closed-loop power control (CLPC) adjustment state among a plurality of closed-loop power control (CLPC) adjustment states; identifying a configuration indicator indicating whether to use an explicit indication in the unicast DCI, two TPC sounding reference signal (SRS) radio network temporary identifiers (TPC-SRS-RNTI) or an SRS request field to determine that at least one of the one or more TPC commands is associated with at least one CLPC adjustment state among the plurality of CLPC adjustment states; and applying each of the at least one TPC command associated with the at least one UL CC to the corresponding CLPC adjustment state among the plurality of CLPC adjustment states based on the configuration indicator.
[0007] Other aspects of this disclosure include a UE having one or more memories including instructions, a transceiver, and one or more processors communicatively coupled to the one or more memories and the transceiver, the one or more processors being configured to execute instructions in the memory to: receive a unicast downlink control indicator (DCI) indicating one or more transmission power control (TPC) commands, each of the one or more TPC commands being associated with a UL CC in one or more uplink (UL) component carriers (CCs), at least one of the one or more UL CCs being UL CCs. The CC is configured with at least one of a plurality of Closed-Loop Power Control (CLPC) adjustment states; an identification configuration indicator that indicates whether to use an explicit indication in the unicast DCI, two TPC Sounding Reference Signal (SRS) Radio Network Temporary Identifiers (TPC-SRS-RNTI), or an SRS Request field to determine that at least one TPC command of the one or more TPC commands is associated with at least one CLPC adjustment state of the plurality of CLPC adjustment states; and based on the configuration indicator, to apply each of the at least one TPC command associated with the at least one ULCC to the corresponding CLPC adjustment state of the plurality of CLPC adjustment states.
[0008] One aspect of this disclosure includes a UE comprising: means for receiving a unicast downlink control indicator (DCI) indicating one or more transmission power control (TPC) commands, each of the one or more TPC commands being associated with a ULCC in one or more uplink (UL) component carriers (CCs), at least one of the one or more ULCCs being configured with at least one closed-loop power control (CLPC) adjustment state among a plurality of closed-loop power control (CLPC) adjustment states; means for identifying a configuration indicator indicating whether an explicit indication in the unicast DCI, two TPC probe reference signal (SRS) radio network temporary identifiers (TPC-SRS-RNTI) or an SRS request field is used to determine that at least one of the one or more TPC commands is associated with at least one CLPC adjustment state among the plurality of CLPC adjustment states; and means for applying each of the at least one TPC command associated with the at least one ULCC to the corresponding CLPC adjustment state among the plurality of CLPC adjustment states based on the configuration indicator.
[0009] Some aspects of this disclosure include a non-transitory computer-readable medium having instructions stored therein, which, when executed by one or more processors of a UE, cause the one or more processors to: receive a unicast downlink control indicator (DCI) indicating one or more transmission power control (TPC) commands, each of the one or more TPC commands being associated with a UL CC in one or more uplink (UL) component carriers (CCs), at least one of the one or more UL CCs being configured with at least one closed-loop power control (CLPC) adjustment state among a plurality of closed-loop power control (CLPC) adjustment states; identify a configuration indicator indicating whether to use an explicit indication in the unicast DCI, two TPC sounding reference signal (SRS) radio network temporary identifiers (TPC-SRS-RNTI), or an SRS request field to determine whether at least one of the one or more TPC commands is associated with at least one CLPC adjustment state among the plurality of CLPC adjustment states; and, based on the configuration indicator, assign the at least one UL CC to a CLPC adjustment state. Each of the at least one TPC commands associated with CC is applied to the corresponding CLPC adjustment state in the plurality of CLPC adjustment states.
[0010] To achieve the foregoing and related objectives, one or more aspects include the features fully described below and specifically pointed out in the claims. The following description and drawings illustrate some exemplary features of one or more aspects in detail. However, these features indicate only some of the various ways in which the principles of the various aspects may be employed, and this description is intended to include all such aspects and their equivalents. Attached Figure Description
[0011] The disclosed aspects will be described below in conjunction with the accompanying drawings, which are provided for illustration and not limitation of the disclosed aspects, wherein similar names represent similar elements, and in the drawings: Figure 1 These are illustrations illustrating examples of wireless communication systems and access networks according to various aspects of this disclosure; Figure 2 These are schematic diagrams illustrating examples of user equipment based on various aspects of this disclosure; Figure 3 This is a schematic diagram illustrating examples of base stations based on various aspects of this disclosure; Figure 4 Examples of networks with asymmetric uplink / downlink density according to various aspects of this disclosure are illustrated; Figures 5A to 5B Examples of TCP command fields for explicit indication according to various aspects of this disclosure are shown; Figure 6 Examples of implicit indication using DCI according to various aspects of this disclosure are illustrated; Figure 7 Examples of SRS resource sets for instructing TCP commands and SRS CLPCs according to various aspects of this disclosure are illustrated; Figure 8 Another example of an SRS resource set for instructing TCP commands and SRS CLPC according to various aspects of this disclosure is illustrated; Figure 9 Examples of instructing TCP commands and SRS CLPC based on DCI location according to various aspects of this disclosure are illustrated; and Figure 10 Examples of methods for configuring uplink component carriers according to various aspects of this disclosure are illustrated. Detailed Implementation
[0012] The detailed description below, taken in conjunction with the accompanying drawings, is intended as a description of various configurations and not as representing only the configurations in which the concepts described herein can be practiced. To provide a thorough understanding of the various concepts, the detailed description includes specific details. However, it will be apparent to those skilled in the art that these concepts can be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring such concepts.
[0013] Various apparatuses and methods will now be used to present several aspects of a telecommunications system. These apparatuses and methods will be described in detail below and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively, “elements”). These elements can be implemented using electronic hardware, computer software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the system as a whole.
[0014] As an example, an element, any part of an element, or any combination of elements may be implemented as a “processing system” including one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, system-on-a-chip (SoCs), baseband processors, field-programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gate logic, discrete hardware circuits, and other suitable hardware configured to perform the various functionalities described throughout this disclosure. One or more processors in a processing system may execute software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, software should be broadly interpreted as meaning instructions, instruction sets, code, code segments, program code, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc.
[0015] Therefore, in one or more example embodiments, the described functionality may be implemented in hardware, software, or any combination thereof. If implemented in software, the functionality may be stored or encoded as one or more instructions or code on a computer-readable medium. A computer-readable medium includes a computer storage medium. The storage medium may be any available medium accessible to a computer. By way of example, and not limitation, such a computer-readable medium may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disc storage devices, magnetic disk storage devices, other magnetic storage devices, combinations of computer-readable media of the types described above, or any other medium that may be used to store computer-executable code in the form of instructions or data structures accessible to a computer.
[0016] Figure 1 This is an illustration of an example of a wireless communication system and communication network 100. The wireless communication system (also known as a wireless wide area network (WWAN)) includes at least one BS 105, UE 110, an evolved packet core (EPC) 160, and a 5G core (5GC) 190. BS 105 may include macro cells (high-power cellular base stations) and / or small cells (low-power cellular base stations). Macro cells include base stations. Small cells include femtocells, picocells, and microcells. In one embodiment, UE 110 may include a communication component 222 configured to communicate with BS 105 via a cellular network, a Wi-Fi network, or other wireless and wired networks. UE 110 may include an identification component 224 configured to identify various UE configurations. UE 110 may include a configuration component 226 configured to configure component carriers of UE 110. In some implementations, communication component 222, identification component 226, and / or configuration component 226 may be implemented using hardware, software, or a combination of hardware and software. In some implementations, BS 105 may include communication component 322 configured to communicate with UE 110. In some implementations, communication component 322 may be implemented using hardware, software, or a combination of hardware and software.
[0017] The BS 105 configured for 4G Long Term Evolution (LTE) (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with the EPC 160 via backhaul link interface 132 (e.g., S1, X2, Internet Protocol (IP), or flex interface). The BS 105 configured for 5G NR (collectively referred to as Next Generation RAN (NG-RAN)) can interface with the 5GC 190 via backhaul link interface 134 (e.g., S1, X2, Internet Protocol (IP), or flex interface). In addition to other functions, the BS 105 can perform one or more of the following functions: user data delivery, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of Non-Access Stratum (NAS) messages, NAS node selection, synchronization, Radio Access Network (RAN) sharing, Multimedia Broadcast Multicast Service (MBMS), subscriber and equipment tracking, RAN Information Management (RIM), paging, location, and delivery of warning messages. The BS 105 can communicate with each other directly or indirectly (e.g., via EPC 160 or 5GC 190) through backhaul link interface 134. Backhaul links 132 and 134 can be wired or wireless.
[0018] BS 105 can wirelessly communicate with UE 110. Each BS in BS 105 can provide communication coverage for a corresponding geographic coverage area 130. Overlapping geographic coverage areas 130 may exist. For example, small cell 105' may have a coverage area 130' that overlaps with the coverage areas 130 of one or more macro BS 105s. A network including small cells and macro cells can be referred to as a heterogeneous network. The heterogeneous network may also include evolved home node B (eNB) (HeNB), which can provide service to restricted groups referred to as closed subscriber groups (CSGs). The communication link 120 between BS 105 and UE 110 may include uplink (UL) (also known as reverse link) transmission from UE 110 to BS 105 and / or downlink (DL) (also known as forward link) transmission from BS 105 to UE 110. The communication link 120 may use multiple-input multiple-output (MIMO) antenna technologies, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link may use one or more carriers. For each carrier allocated in carrier aggregation for transmission in each direction, totaling up to Yx MHz (x component carriers), the BS 105 / UE 110 can use up to Y xA spectrum with a bandwidth of MHz (e.g., 5MHz, 10MHz, 15MHz, 20MHz, 100MHz, 400MHz, etc.). Carriers may be adjacent to each other or may not be adjacent to each other. Carrier allocation may be asymmetrical for DL and UL (e.g., more or fewer carriers may be allocated to DL than to UL). Component carriers may include primary component carriers and one or more secondary component carriers. The primary component carrier may be referred to as the primary cell (Pcell) and the secondary component carrier may be referred to as the secondary cell (Scell).
[0019] Some UEs 110 can communicate with each other using device-to-device (D2D) communication link 158. D2D communication link 158 can use DL / UL WWAN spectrum. D2D communication link 158 can use one or more sidelink channels, such as Physical Sidelink Broadcast Channel (PSBCH), Physical Sidelink Discovery Channel (PSDCH), Physical Sidelink Shared Channel (PSSCH), and Physical Sidelink Control Channel (PSCCH). D2D communication can be performed through various wireless D2D communication systems, such as, for example, FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or NR.
[0020] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in the 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a free channel assessment (CCA) to determine the availability of a channel before communication.
[0021] Small cell 105' can operate in licensed and / or unlicensed spectrum. When operating in unlicensed spectrum, small cell 105' can employ NR and use the same 5 GHz unlicensed spectrum as Wi-Fi AP 150. Small cell 105' employing NR in unlicensed spectrum can improve access network coverage and / or increase access network capacity.
[0022] Whether it's a small cell 105' or a large cell (e.g., a macro base station), BS 105 can include eNBs, gNodeBs (gNBs), or other types of base stations. Some base stations (such as gNB 180) can operate in one or more frequency bands within the electromagnetic spectrum. The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc., based on frequency / wavelength. In 5G NR, two initial operating frequency bands have been identified as the frequency range designations FR1 (410MHz to 7.125GHz) and FR2 (24.25GHz to 52.6GHz). The frequencies between FR1 and FR2 are generally referred to as the mid-band frequencies. Although a portion of FR1 is greater than 6GHz, in various documents and articles, FR1 is often (interchangeably) referred to as the "sub-6GHz" band. FR2 sometimes presents similar naming issues, although it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) that the International Telecommunication Union (ITU) has designated as the “millimeter wave” (mmW) band, it is often referred to as the “millimeter wave” band (interchangeably) in various documents and articles.
[0023] Considering the above aspects, unless otherwise specifically stated, it should be understood that, as used herein, the term "below 6 GHz" and the like can broadly refer to frequencies less than 6 GHz, within FR1, or including intermediate frequency band frequencies. Furthermore, unless otherwise specifically stated, it should be understood that, as used herein, the term "millimeter wave" and the like can broadly refer to frequencies including intermediate frequency band frequencies, within FR2, or within the EHF band. Communication using mmW / near mmW radio bands has extremely high path loss and short range. The mmW base station 180 can utilize beamforming 182 with the UE 110 to compensate for path loss and short range.
[0024] EPC 160 may include Mobility Management Entity (MME) 162, other MMEs 164, Serving Gateway 166, Multimedia Broadcast Multicast Service (MBMS) Gateway 168, Broadcast Multicast Service Center (BM-SC) 170, and Packet Data Network (PDN) Gateway 172. MME 162 can communicate with Home Subscriber Server (HSS) 174. MME 162 is the control node that handles signaling between UE 110 and EPC 160. Generally, MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are delivered through Serving Gateway 166, which is itself connected to PDN Gateway 172. PDN Gateway 172 provides UE IP address allocation and other functions. PDN Gateway 172 and BM-SC 170 are connected to IP Service 176. IP Service 176 may include the Internet, intranet, IP Multimedia Subsystem (IMS), Packet Switched (PS) streaming service, and / or other IP services. The BM-SC 170 provides functions for MBMS user service dispatch and delivery. The BM-SC 170 can act as an entry point for content provider MBMS transmission, authorize and initiate MBMS bearer services in a Public Land Mobile Network (PLMN), and schedule MBMS transmissions. The MBMS Gateway 168 can be used to distribute MBMS services to BS 105 in a Broadcast-Specific Service Single Frequency Network (MBSFN) area, and is responsible for session management (start / stop) and collecting eMBMS-related billing information.
[0025] 5GC 190 may include Access and Mobility Management Functions (AMF) 192, other AMFs 193, Session Management Functions (SMF) 194, and User Plane Functions (UPF) 195. AMF 192 can communicate with Unified Data Management (UDM) 196. AMF 192 is the control node that handles signaling between UE 110 and 5GC 190. Generally, AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are delivered through UPF 195. UPF 195 provides UE IP address allocation and other functions. UPF 195 connects to IP services 197. IP services 197 may include the Internet, intranets, IP Multimedia Subsystem (IMS), PS streaming services, and / or other IP services.
[0026] BS 105 may also be referred to as gNB, Node B, Evolved Node B (eNB), Access Point, Base Transceiver, Radio Base Station, Access Point, Access Node, Radio Transceiver, NodeB, eNodeB (eNB), gNB, Home NodeB, Home eNodeBB, Repeater, Transceiver Function, Basic Services Set (BSS), Extended Services Set (ESS), Transmitter-Receiver Point (TRP), or any other suitable term. BS 105 provides UE 110 with access to EPC 160 or 5GC 190. Examples of UE 110 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, GPS devices, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablets, smart devices, wearable devices, vehicles, electricity meters, air pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or any other similarly functional device. Some UEs in UE 110 may be referred to as IoT devices (e.g., parking timers, air pumps, toasters, vehicles, heart monitors, etc.). UE 110 may also be referred to as a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, mobile phone, user agent, mobile client, client, or some other suitable terminology.
[0027] Reference Figure 2 An example of a specific implementation of UE 110 may include a modem 220 having a communication component 222, an identification component 226, and / or a configuration component 226. In one implementation, UE 110 may include the communication component 222 configured to communicate with BS 105 via a cellular network, a Wi-Fi network or other wireless network and wired network. UE 110 may include an identification component 224 configured to identify various UE configurations. UE 110 may include a configuration component 226 configured to configure the component carriers of UE 110.
[0028] In some implementations, UE 110 may include various components, including components such as one or more processors 212, memory 216, and transceiver 202 that communicate via one or more buses 244. These components may cooperate with modem 220 and / or communication component 222 to perform one or more of the functions described herein related to communicating with BS 105. Furthermore, one or more processors 212, modem 220, memory 216, transceiver 202, RF front end 288, and one or more antennas 265 may be configured to (simultaneously or asynchronously) support voice and / or data calls in one or more radio access technologies. The one or more antennas 265 may include one or more antennas, antenna elements, and / or antenna arrays.
[0029] In one aspect, one or more processors 212 may include a modem 220 using one or more modem processors. Various functions associated with the communication component 222, the identification component 226, and / or the configuration component 226 may be included in the modem 220 and / or the processor 212, and in one aspect, may be performed by a single processor, while in other aspects, different functions may be performed by a combination of two or more different processors. For example, in one aspect, one or more processors 212 may include any one or any combination of the following: a modem processor, or a baseband processor, or a digital signal processor, or a transmitting processor, or a receiving device processor, or a transceiver processor associated with transceiver 202. Additionally, the modem 220 may be configured with the processor 212 to configure the UE 110. In other aspects, some features of the one or more processors 212 and / or the modem 220 associated with the communication component 222 may be performed by the transceiver 202.
[0030] Memory 216 may be configured to store data used herein and / or a local version of application 275. Furthermore, memory 216 may be configured to store data used herein, and / or a local version of communication component 222, identification component 226 and / or configuration component 226, and / or one or more sub-components executed by at least one processor 212. Memory 216 may include any type of computer-readable medium usable by a computer or at least one processor 212, such as random access memory (RAM), read-only memory (ROM), magnetic tape, magnetic disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, memory 216 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes and / or associated data defining one or more of the communication component 222, identification component 226 and / or configuration component 226 and / or sub-components when UE 110 operates at least one processor 212 to execute one or more of the sub-components of communication component 222, identification component 226 and / or configuration component 226 and / or sub-components.
[0031] Transceiver 202 may include at least one receiver 206 and at least one transmitter 208. Receiver 206 may include hardware, firmware, and / or software code executable by a processor for receiving data, the code including instructions and stored in memory (e.g., a computer-readable medium). Receiver 206 may be, for example, an RF receiving device. In one aspect, receiver 206 may receive signals transmitted by at least one BS 105. Transmitter 208 may include hardware, firmware, and / or software code executable by a processor for transmitting data, the code including instructions and stored in memory (e.g., a computer-readable medium). Suitable examples of transmitter 208 may include, but are not limited to, RF transmitters.
[0032] Furthermore, in one aspect, UE 110 may include an RF front-end 288 that is communicatively operable with one or more antennas 265 and transceiver 202 for receiving and transmitting radio transmissions, such as wireless communications transmitted by at least one BS 105 or wireless transmissions transmitted by UE 110. The RF front-end 288 may be coupled to one or more antennas 265 and may include one or more low-noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 for transmitting and receiving RF signals.
[0033] On one hand, the LNA 290 can amplify the received signal at a desired output level. On another hand, each LNA 290 can have a specified minimum gain value and a maximum gain value. On yet another hand, the RF front end 288 can use one or more switches 292 to select a particular LNA 290 and its specified gain value based on the desired gain value for a particular application.
[0034] Furthermore, for example, the RF front-end 288 may use one or more PAs 298 to amplify the signal for RF output at a desired output power level. In one aspect, each PA 298 may have a specified minimum gain value and a maximum gain value. In another aspect, the RF front-end 288 may use one or more switches 292 to select a particular PA 298 and its specified gain value based on the desired gain value for a particular application.
[0035] Furthermore, for example, the RF front-end 288 may use one or more filters 296 to filter the received signal to obtain the input RF signal. Similarly, in one aspect, for example, the output from the corresponding PA 298 may be filtered using a corresponding filter 296 to generate an output signal for transmission. In one aspect, each filter 296 may be coupled to a specific LNA 290 and / or PA 298. In one aspect, the RF front-end 288 may use one or more switches 292 to select the transmit or receive path using the specified filter 296, LNA 290, and / or PA 298 based on the configuration specified by the transceiver 202 and / or processor 212.
[0036] Therefore, transceiver 202 can be configured to transmit and receive radio signals via RF front end 288 through one or more antennas 265. In one aspect, the transceiver can be tuned to operate at a specified frequency, enabling UE 110 to communicate with, for example, one or more BS 105s or with one or more cells associated with one or more BS 105s. In another aspect, for example, modem 220 can configure transceiver 202 to operate at a specified frequency and power level based on the UE configuration of UE 110 and the communication protocol used by modem 220.
[0037] In one aspect, modem 220 may be a multi-band, multi-mode modem capable of processing digital data and communicating with transceiver 202 to enable the use of transceiver 202 for transmitting and receiving digital data. In another aspect, modem 220 may be multi-band and configured to support multiple frequency bands for a specific communication protocol. In another aspect, modem 220 may be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, modem 220 may control one or more components of UE 110 (e.g., RF front-end 288, transceiver 202) to transmit and / or receive signals from the network based on a specified modem configuration. In one aspect, modem configuration may be based on the modem's mode and the frequency band in use. In another aspect, modem configuration may be based on UE configuration information associated with UE 110, such as that provided by the network.
[0038] Reference Figure 3 An example of a specific implementation of BS 105 may include a modem 320 having a communication component 322. In some specific implementations, BS 105 may include a communication component 322 configured to communicate with UE 110.
[0039] In some implementations, BS 105 may include various components, including components such as one or more processors 312 and memory 316 and transceiver 302 that communicate via one or more buses 344. These components may cooperate with modem 320 and / or communication component 322 to perform one or more of the functions described herein related to communicating with UE 110. Furthermore, one or more processors 312, modem 320, memory 316, transceiver 302, RF front end 388, and one or more antennas 365 may be configured to (simultaneously or asynchronously) support voice calls and / or data calls in one or more radio access technologies.
[0040] In one aspect, one or more processors 312 may include a modem 320 using one or more modem processors. Various functions associated with the communication component 322 may be included in the modem 320 and / or processor 312, and in one aspect, may be performed by a single processor, while in other aspects, different functions may be performed by a combination of two or more different processors. For example, in one aspect, one or more processors 312 may include any one or any combination of: a modem processor, or a baseband processor, or a digital signal processor, or a transmitting processor, or a receiving device processor, or a transceiver processor associated with transceiver 302. Additionally, the modem 320 may be configured with BS 105 and processor 312. In other aspects, some features of the one or more processors 312 and / or modem 320 associated with the communication component 322 may be performed by transceiver 302.
[0041] Memory 316 may be configured to store data used herein and / or a local version of application 375. Furthermore, memory 316 may be configured to store data used herein, and / or a local version of communication component 322, and / or one or more sub-components executed by at least one processor 312. Memory 316 may include any type of computer-readable medium usable by a computer or at least one processor 312, such as random access memory (RAM), read-only memory (ROM), magnetic tape, magnetic disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, memory 316 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining communication component 322 and / or one or more sub-components and / or associated data when BS 105 operates at least one processor 312 to execute communication component 322 and / or one or more sub-components.
[0042] Transceiver 302 may include at least one receiver 306 and at least one transmitter 308. At least one receiver 306 may include processor-executable hardware, firmware, and / or software code for receiving data, the code including instructions and stored in memory (e.g., a computer-readable medium). Receiver 306 may be, for example, an RF receiving device. In one aspect, receiver 306 may receive signals transmitted by UE 110. Transmitter 308 may include processor-executable hardware, firmware, and / or software code for transmitting data, the code including instructions and stored in memory (e.g., a computer-readable medium). Suitable examples of transmitter 308 may include, but are not limited to, RF transmitters.
[0043] Furthermore, in one aspect, BS 105 may include an RF front-end 388 that is communicatively operable with one or more antennas 365 and transceiver 302 for receiving and transmitting radio transmissions, such as wireless communications transmitted by other BS 105 or wireless transmissions transmitted by UE 110. The RF front-end 388 may be coupled to one or more antennas 365 and may include one or more low-noise amplifiers (LNAs) 390, one or more switches 392, one or more power amplifiers (PAs) 398, and one or more filters 396 for transmitting and receiving RF signals.
[0044] On one hand, the LNA 390 can amplify the received signal at a desired output level. On another hand, each LNA 390 can have a specified minimum gain value and a maximum gain value. On yet another hand, the RF front end 388 can use one or more switches 392 to select a particular LNA 390 and its specified gain value based on the desired gain value for a particular application.
[0045] Furthermore, for example, the RF front-end 388 may use one or more PAs 398 to amplify the signal for RF output at a desired output power level. In one aspect, each PA 398 may have a specified minimum gain value and a maximum gain value. In another aspect, the RF front-end 388 may use one or more switches 392 to select a particular PA 398 and its specified gain value based on the desired gain value for a particular application.
[0046] Furthermore, for example, the RF front-end 388 may use one or more filters 396 to filter the received signal to obtain the input RF signal. Similarly, in one aspect, for example, the output from a corresponding PA 398 may be filtered using a corresponding filter 396 to generate an output signal for transmission. In one aspect, each filter 396 may be coupled to a specific LNA 390 and / or PA 398. In one aspect, the RF front-end 388 may use one or more switches 392 to select the transmit or receive path using a specified filter 396, LNA 390, and / or PA 398 based on the configuration specified by the transceiver 302 and / or processor 312.
[0047] Therefore, transceiver 302 can be configured to transmit and receive wireless signals via RF front end 388 through one or more antennas 365. In one aspect, the transceiver can be tuned to operate at a specified frequency, enabling BS 105 to communicate with, for example, UE 110 or with one or more cells associated with one or more BS 105. In another aspect, for example, modem 320 can configure transceiver 302 to operate at a specified frequency and power level based on the base station configuration of BS 105 and the communication protocol used by modem 320.
[0048] In one aspect, modem 320 may be a multi-band, multi-mode modem capable of processing digital data and communicating with transceiver 302 to enable the use of transceiver 302 for transmitting and receiving digital data. In another aspect, modem 320 may be multi-band and configured to support multiple frequency bands for a specific communication protocol. In another aspect, modem 320 may be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, modem 320 may control one or more components of BS 105 (e.g., RF front-end 388, transceiver 302) to transmit and / or receive signals from the network based on a specified modem configuration. In one aspect, modem configuration may be based on the modem's mode and the frequency band in use. In another aspect, modem configuration may be based on base station configuration information associated with BS 105.
[0049] Figure 4 An example of a communication network 100 according to various aspects of this disclosure is illustrated. Specifically, the communication network 100 may be an uplink (UL) dense communication network with asymmetric DL / UL density. A UL dense communication network can be deployed to improve UL coverage / capacity. In some aspects, UE 110 UL signals / channels are received by UL Rx point 105' (which may be a TRP configured for UL only). DL signals / channels transmitted from BS 105 may originate from different nodes (e.g., macro nodes, central nodes, serving cells, serving BS, etc.). The UL Rx point may be connected to the macro node via backhaul. This network configuration reduces UL path loss (PL), which is helpful when UL coverage is a bottleneck, and improves deployment cost / complexity because the UL Rx point does not transmit any DL signals (UL RX points receive UL signals and transmit them to the macro node with or without any processing).
[0050] In some aspects of this disclosure, the probe reference signal (SRS) power control can be described using the following equation:
[0051] This SRS power control can be measured in decibels per milliwatt (dBm). Here, If srs-PowerControlAdjustmentStates If the same power control adjustment state is indicated for both SRS and PUSCH transmissions, then... This indicates the current Physical Uplink Shared Channel (PUSCH) power control adjustment status. Alternatively, if UE 110 is not configured for serving the cell... carrier The active UL bandwidth portion (BWP) Send PUSCH on, or if srs-PowerControlAdjustmentStates Indicates the separate power control adjustment status between SRS transmission and PUSCH transmission, and if not provided tpc-Accumulation ,but .parameter It is jointly encoded in the PDCCH with DCI format 2_3 along with other Transmit Power Control (TPC) commands. (Element) srs- PowerControlAdjustmentStates Indicates the same adjustment state for SRS and PUSCH (and if the same, indicates the first or second adjustment state). () or a separate adjustment state. In the case of a separate adjustment state for SRS, only one closed-loop index (one adjustment state) can be defined for SRS, that is, in the function The period (.) is not present. In the case of a separate adjustment state for SRS, the TPC command can be indicated in DCI format 2_3.
[0052] One aspect of this disclosure may include how to indicate TPC commands for these two SRS CLPC adjustment states via DCI when the UE is configured with two SRS closed-loop power control (CLPC) adjustment states. Example options are shown below. Option 1 may include enhancing the older DCI format 2_3 for the higher-layer parameter srs-TPC-PDCCH-Group = TypeA. Option 2 may include enhancing the higher-layer parameter... srs-TPC-PDCCH-Group =The legacy DCI format 2_3 of Type B. Option 3 may include enhancing higher layer parameters. srs-TPC-PDCCH-Group =Legacy DCI format 2_3 for Type A and Type B. Option 4 may include enhanced DCI format 1_1, and / or include 0_1 to indicate the TPC for SRS CLPC adjustment state. Option 5 may include enhanced legacy DCI format 2_3 by introducing a type for the higher layer parameter srs-TPC-PDCCH-Group. Option 6 may include implementing a DCI format to indicate the TPC for SRS CLPC adjustment state. Other options may also be implemented.
[0053] Some aspects include the following alternatives for indicating TPC commands. In DCI format 2_3, the first alternative (Alternative 1) involves adding an additional TPC command for each CC configured with two SRS CLPC adjustment states. The first TPC command is associated with the first SRS CLPC adjustment state, and the second TPC command is associated with the second SRS CLPC adjustment state.
[0054] In some aspects of this disclosure, a second alternative (Alternative 2) introduces a 1-bit closed-loop indicator field for each TPC command in DCI format 2_3. This 1-bit closed-loop indicator indicates either the first SRS CLPC adjustment state or the second SRS CLPC adjustment state.
[0055] Some aspects of this disclosure include a third alternative (Alternative 3) which uses two different TPC-SRS-RNTIs for DCI format 2_3. DCI format 2_3, having CRCs scrambled with the first and second TPC-SRS-RNTIs, respectively indicates TPC commands for the first SRS CLPC adjustment state and the second SRS CLPC adjustment state. In some aspects, a fourth alternative (Alternative 4) includes using indicators based on the frame or slot number of the received DCI test rate and / or based on SRS requests.
[0056] In the first scheme of this disclosure, TPC commands for two SRS CLPC adjustment states in a unicast DCI can be used. For example, the first scheme may include adding a new TPC command field to the SRS TPC command. This new TPC command field may exist if two SRS CLPC adjustment states are configured for each CC.
[0057] Figures 5A to 5B An example of an explicit indication for associating SRS TPC commands for multiple SRS CLPC adjustment states is illustrated. The unicast DCI can be DCI format 1_1, DCI 1_2, DCI 0_1, and / or DCI 0_2. Other formats are also possible. In some aspects, the first indicator 500 may include four bits and two TPC commands. The first TPC command may be associated with a first SRS CLPC adjustment state, and the second TPC command may be associated with a second SRS CLPC adjustment state.
[0058] On the other hand, the second indicator 550 may include a 1-bit closed-loop indicator field and a 2-bit TPC command. The value of the closed-loop indicator field indicates which SRS CLPC adjustment state the TPC command is associated with. For example, if the closed-loop indicator has a value of "0", the TPC command may be associated with the first SRS CLPC adjustment state. If the closed-loop indicator has a value of "1", the TPC command may be associated with the second SRS CLPC adjustment state.
[0059] Figure 6An example of an implicit indication for associating SRS TPC commands for multiple SRS CLPC adjustment states is illustrated. In some aspects of this disclosure, the third indicator 600 may include two bits and a TPC command. The third indicator 600 may use two different RNTIs for two SRS CLPC adjustment states. If the unicast DCI is a cyclic redundancy check (CRC) scrambled with the first RNTI, the TPC command is associated with the first SRS CLPC adjustment state. If the unicast DCI is a CRC scrambled with the second RNTI, the TPC command is associated with the second SRS CLPC adjustment state.
[0060] In the second aspect of this disclosure, the association between a TPC command and an SRS CLPC adjustment state can be determined based on the resource location of the unicast DCI. For example, the TPC command field may include two bits and a TPC command. If the unicast DCI is allocated in an odd-numbered time slot / subframe / system frame number, the TPC command may be associated with a first SRS CLPC adjustment state. Alternatively, if the unicast DCI is allocated in an even-numbered time slot / subframe / system frame number, the TPC command may be associated with a second SRS CLPC adjustment state. Other methods of signaling the association of the TPC command may also be used. For example, the association of a TPC command to a first SRS CLPC adjustment state can be signaled by placing the unicast DCI in an even-numbered time slot / subframe / system frame number, and the association of a TPC command to a second SRS CLPC adjustment state can be signaled by placing the unicast DCI in an odd-numbered time slot / subframe / system frame number.
[0061] In the third approach disclosed herein, the association between a TPC command and an SRS CLPC adjustment state can be indicated based on the SRS request field. The TPC command field may include two bits and a TPC command. Whether the TPC command field applies to a first SRS CLPC adjustment state or a second SRS CLPC adjustment state may depend on the triggering SRS resource set (SRS request field).
[0062] Figure 7 An example of SRS resource set allocation is illustrated in diagram 700. If all triggered SRS resource sets (SRS resource sets mapped to the code points indicated by the SRS request field) are configured in the first SRS CLPC adjustment state (SRS resource sets #1, #2, #3, and #4), then the TPC command is applied to the first SRS CLPC adjustment state. If all triggered SRS resource sets are configured in the second SRS CLPC adjustment state (SRS resource sets #5, #6, #7, and #8), then the TPC command is applied to the second SRS CLPC adjustment state.
[0063] In one aspect of this disclosure, if the SRS resource set associated with an SRS CLPC adjustment state includes an aperiodic SRS resource set, a periodic SRS resource set, and / or a semi-persistent SRS resource set, and if the network aims to adjust the closed-loop power control of the periodic SRS resource set and / or the semi-persistent SRS resource set, the network may trigger the transmission of the aperiodic SRS resource set.
[0064] In certain aspects of this disclosure, if all triggered SRS resource sets (resource sets mapped to the code points indicated by the SRS request field) are configured with a second SRS CLPC adjustment state, then the TPC command may be applied to the second SRS CLPC adjustment state.
[0065] In one aspect of this disclosure, if some triggered SRS resource sets are configured with a first SRS CLPC adjustment state and other triggered SRS resource sets are configured with a second SRS CLPC adjustment state, then fixed rules can be applied. For example, a TPC command can be applied to the first SRS CLPC adjustment state, to the SRS CLPC adjustment state of the SRS resource set with the lowest or highest ID configured for triggering, or to both the first and second SRS CLPC adjustment states. Other fixed rules can also be implemented according to various aspects of this disclosure. In some aspects, the SRS TPC command can be applied only to the triggered SRS resource sets.
[0066] Figure 8 An example of a diagram 800 showing a configured SRS resource is illustrated. The TPC command field may include two bits and a TPC command. Whether the TPC command field is applied to a first SRS CLPC adjustment state or a second SRS CLPC adjustment state may depend on the triggered resource set. If the SRS request field is set to "00" (i.e., no SRS resource set is triggered), the TPC command may be applied to a given SRS CLPC adjustment state where all SRS resource sets associated with that given SRS CLPC adjustment state are periodic or semi-persistent. In one aspect, this scheme may be applicable when all SRS resource sets associated with an SRS CLPC adjustment state are only periodic or semi-persistent (i.e., no non-periodic SRS resource sets are configured for that SRS CLPC adjustment state).
[0067] Figure 9 Examples are shown for use Figure 8The example diagram 900 illustrates the timing of the configured SRS resources according to the scheme indicated in the diagram. Here, if the set of SRS resources associated with each SRS CLPC adjustment state in the SRS CLPC adjustment state is only periodic or semi-persistent, then the TPC command is applied to the SRS CLPC adjustment state associated with the next most recent SRS transmission timing that satisfies the processing delay. Specifically, as shown in Figure 900... Figure 9 As shown, DCI is closest to SRS resource set #1 in time. Therefore, the TPC command is applied to the first SRS CLPC adjustment state.
[0068] According to the second scheme of this disclosure, when DCI format 0_1 with CRC is scrambled with CS-RNTI and PUSCH is not scheduled, the TPC command in DCI format 0_1 can be applied to SRS CLPC adjustment. Here, the values of the following DCI fields are set as follows: Redundancy Version (RV) = all "1", Modulation and Decoding Scheme (MCS) = all "1", for Frequency Domain Resource Allocation (FDRA) type 0 or dynamicSwitch Set to "0", and / or set to all "1"s for FDRA type 1. The New Data Indicator (NDI) can be interpreted as a closed-loop indicator. One or more other fields may be retained.
[0069] A third approach according to various aspects of this disclosure may include indicating a TPC command in the unicast DCI for a single, individual SRS CLPC adjustment state. The third approach may add a TPC command field for the SRS TPC command. If srs- PowerControlAdjustmentStates Configured with separateCloseLoop Then, a TPC command field may exist. When the DCI format 0_1 with CRC is scrambled with CS-RNTI and no PUSCH is scheduled, the TPC command can be applied to SRS CLPC adjustment. Here, the values of the following DCI fields are set as follows: RV = all "1", MCS = all "1", for Frequency Domain Resource Allocation (FDRA) type 0 or dynamicSwitch Set to "0", and / or set to all "1"s for FDRA type 1. The New Data Indicator (NDI) can be "0". One or more other fields can be retained.
[0070] According to the fourth scheme of this disclosure, the presence of SRS TPC commands in unicast DCIs can be configured via Radio Resource Control (RRC) according to the DCI format. The network can enable SRS TPC commands in unicast DCIs based on the remaining payload size for each DCI format.
[0071] Figure 10An example of a method for configuring an uplink component carrier is illustrated. For example, method 1000 may be performed by one or more of the following: processor 212, memory 216, application 275, modem 220, transceiver 202, receiver 206, transmitter 208, RF front end 288, communication component 222, identification component 226 and / or configuration component 226 and / or one or more other components of a UE 110 in a wireless communication network 100.
[0072] At block 1005, method 1000 may receive a unicast downlink control indicator (DCI) that indicates one or more transmission power control (TPC) commands, each of which is associated with a UL CC in one or more uplink (UL) component carriers (CCs), at least one of which is configured with at least one closed-loop power control (CLPC) adjustment state among a plurality of closed-loop power control (CLPC) adjustment states. For example, the communication component 222, transceiver 202, receiver 206, transmitter 208, RF front-end 288, sub-components of RF front-end 288, processor 212, memory 216, modem 220, and / or application 275 of UE 110 may receive a unicast downlink control indicator (DCI) that indicates one or more transmission power control (TPC) commands, each of which is associated with a UL CC in one or more uplink (UL) component carriers (CCs), at least one of which is configured with at least one closed-loop power control (CLPC) adjustment state, as described above. RF front-end 288 may receive electrical signals converted from electromagnetic signals. RF front-end 288 may filter and / or amplify the electrical signals. Transceiver 202 or receiver 206 may convert the electrical signals into digital signals and transmit the digital signals to communication component 222.
[0073] In some specific implementations, communication component 222, transceiver 202, receiver 206, transmitter 208, RF front-end 288, sub-components of RF front-end 288, processor 212, memory 216, modem 220, and / or application 275 may be configured and / or defined to receive unicast downlink control indicators (DCIs) that indicate one or more transmission power control (TPC) commands, each of which is associated with a UL CC in one or more uplink (UL) component carriers (CCs), at least one of which is configured with at least one closed-loop power control (CLPC) adjustment state.
[0074] At box 1010, method 1000 may identify a configuration indicator that indicates whether an explicit indication in the unicast DCI, two TPC Probe Reference Signal (SRS) Radio Network Temporary Identifiers (TPC-SRS-RNTI), or an SRS Request field is used to determine whether at least one of one or more TPC commands is associated with at least one CPLC adjustment state among multiple CLPC adjustment states. For example, identification components 224, processor 212, memory 216, modem 220, and / or application 275 of UE 110 may identify a configuration indicator that indicates whether an explicit indication in the unicast DCI, two TPC Probe Reference Signal (SRS) Radio Network Temporary Identifiers (TPC-SRS-RNTI), or an SRS Request field is used to determine whether at least one of one or more TPC commands is associated with at least one CPLC adjustment state among multiple CLPC adjustment states, as described above.
[0075] In some specific implementations, the identification component 224, processor 212, memory 216, modem 220, and / or application 275 may be configured and / or defined to identify a configuration indicator that indicates whether an explicit indication in the unicast DCI, two TPC probe reference signal (SRS) radio network temporary identifiers (TPC-SRS-RNTI), or an SRS request field is used to determine that at least one of one or more TPC commands is associated with at least one CPLC adjustment state among a plurality of CLPC adjustment states.
[0076] At block 1015, method 1000 may, based on a configuration indicator, apply each of at least one TPC command associated with at least one UL CC to a corresponding CLPC adjustment state among a plurality of CLPC adjustment states. For example, configuration component 226, transceiver 202, receiver 206, transmitter 208, RF front end 288, sub-components of RF front end 288, processor 212, memory 216, modem 220, and / or application 275 of UE 110 may, based on a configuration indicator, apply each of at least one TPC command associated with at least one UL CC to a corresponding CLPC adjustment state among a plurality of CLPC adjustment states, as described above.
[0077] In some specific implementations, configuration component 226, transceiver 202, receiver 206, transmitter 208, RF front end 288, sub-components of RF front end 288, processor 212, memory 216, modem 220 and / or application 275 may be configured and / or defined for applying each of at least one TPC command associated with at least one UL CC to a corresponding CLPC adjustment state in a plurality of CLPC adjustment states, based on a configuration indicator.
[0078] Alternatively or additionally, method 1000 may also include any of the methods described above, wherein an explicit indication in the unicast DCI indicates that: a first TPC command among one or more TPC commands is associated with a first CLPC adjustment state among a plurality of CLPC adjustment states; and a second TPC command among one or more TPC commands is associated with a second CLPC adjustment state among a plurality of CLPC adjustment states.
[0079] Alternatively or additionally, method 1000 may also include any of the methods described above, wherein the explicit indication in the unicast DCI includes a closed-loop indicator that indicates whether a TPC command in one or more TPC commands is associated with a first CLPC adjustment state among a plurality of CLPC adjustment states or with a second CLPC adjustment state among a plurality of CLPC adjustment states.
[0080] Alternatively or additionally, method 1000 may also include any of the methods described above, wherein the identification configuration indicator includes: a receive configuration indicator that indicates the use of two TPC-SRS-RNTIs to determine that at least one TPC command is associated with: scrambling by a first TPC-SRS-RNTI of the two TPC-SRS-RNTIs in response to a unicast DCI: a first CLPC adjustment state among a plurality of CLPC adjustment states; or scrambling by a second TPC-SRS-RNTI of the two TPC-SRS-RNTIs in response to a unicast DCI: a second CLPC adjustment state among a plurality of CLPC adjustment states.
[0081] Alternatively or additionally, method 1000 may also include any of the methods above, wherein the identification configuration indicator includes: identifying at least one TPC command associated with: receiving a unicast DCI in a first resource among a first plurality of resources: a first CLPC adjustment state among a plurality of CLPC adjustment states; or receiving a unicast DCI in a second resource among a second plurality of resources: a second CLPC adjustment state among a plurality of CLPC adjustment states.
[0082] Alternatively or additionally, method 1000 may also include any of the methods above, wherein at least one TPC command is associated with: a first CLPC adjustment state in response to one or more triggered SRS resource sets being configured with a plurality of CLPC adjustment states; or a second CLPC adjustment state in response to one or more triggered SRS resource sets being configured with a plurality of CLPC adjustment states.
[0083] Alternatively or additionally, method 1000 may also include any of the methods above, wherein at least one TPC command is associated with: a first CLPC adjustment state among a plurality of CLPC adjustment states; a CLPC adjustment state configured for an SRS resource set having the lowest or highest identifier among one or more SRS resource sets; or a first CLPC adjustment state and a second CLPC adjustment state among a plurality of CLPC adjustment states.
[0084] Alternatively or additionally, method 1000 may also include any of the methods above, wherein in response to an SRS request field having a specific value, at least one TPC command is associated with a CLPC adjustment state having a periodic or semi-persistent SRS resource set.
[0085] The above detailed description, illustrated in conjunction with the accompanying drawings, describes examples and does not represent only examples that can be implemented or fall within the scope of the claims. The term "example" as used in this description means "serving as an example, instance, or illustration," not "preferred" or "advantageous over other examples." The detailed description includes specific details used to provide an understanding of the described techniques. However, these techniques can be practiced without these specific details. For example, changes can be made to the function and arrangement of the elements discussed without departing from the scope of this disclosure. Furthermore, various processes or components may be omitted, substituted, or added as appropriate in various examples. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Moreover, features described in some examples may be combined in other examples. In some instances, well-known structures and apparatuses are shown in block diagram form to avoid obscuring the concepts of the described examples.
[0086] It should be noted that the technologies described herein can be used in various wireless communication networks, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 encompasses the IS-2000, IS-95, and IS-856 standards. IS-2000 versions 0 and A are commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. TDMA systems implement radio technologies such as the Global System for Mobile Communications (GSM). OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, and Flash-OFDM. ™UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP LTE and Advanced LTE (LTE-A) are newer versions of UMTS that utilize E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the Third Generation Partnership Project (3GPP). CDMA2000 and UMB are described in documents from an organization called the Third Generation Partnership Project 2 (3GPP2). The technologies described herein can be used in the aforementioned systems and radio technologies, as well as in other systems and radio technologies, including cellular (e.g., LTE) communications on shared radio spectrum bands. However, while these technologies can be applied to other next-generation communication systems, for illustrative purposes, this description describes LTE / LTE-A systems or 5G systems, and the term LTE is used in most of the following description.
[0087] Information and signals can be represented using any of a variety of different techniques and skills. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned in the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, computer-executable code or instructions stored on a computer-readable medium, or any combination thereof.
[0088] The various exemplary blocks and components described herein can be implemented or performed using specially programmed devices designed to perform the functions described herein, such as, but not limited to, processors, digital signal processors (DSPs), ASICs, FPGAs or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The specially programmed processor may be a microprocessor, but in alternatives, the processor may be any conventional processor, controller, microcontroller, or state machine. The specially programmed processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).
[0089] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or code on or transmitted via a non-transitory computer-readable medium. Other examples and specific implementations fall within the scope and spirit of this disclosure and the appended claims. For example, due to the nature of software, the functions described above may be implemented using hardware, firmware, hardwired, software executed by a specially programmed processor, or any combination of these. Features implementing the functions may also be physically located in various locations, including portions distributed such that the functions are implemented in different physical locations. Furthermore, as used herein, including in the claims, the word "or" used in a list of entries beginning with "at least one of" indicates a distributed list, such that a list such as "at least one of A, B, or C" means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).
[0090] Computer-readable media includes both computer storage media and communication media, with the latter including any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium that can be accessed by a general-purpose computer or a special-purpose computer. By way of example, and not limitation, computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, or any other medium that can be used to carry or store desired program code elements in the form of instructions or data structures, and that can be accessed by a general-purpose computer or a special-purpose computer, or a general-purpose processor or a special-purpose processor. Furthermore, any connection is appropriately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included within the definition of media. As used herein, disks and optical discs include compact optical discs (CDs), laser optical discs, optical discs, digital versatile optical discs (DVDs), floppy disks, and Blu-ray discs, wherein disks typically copy data magnetically, while optical discs use lasers to copy data optically. Combinations of the above are also included within the scope of computer-readable media.
[0091] The prior description of this disclosure is provided to enable those skilled in the art to make or use it. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of this disclosure. Furthermore, although elements of the described aspects may be described or claimed in the singular, the plural form may also be considered unless expressly stated as limited to the singular. Additionally, unless otherwise stated, all or part of any aspect may be used in conjunction with all or part of any other aspect. Therefore, this disclosure is not intended to be limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method of communication performed by a user equipment (UE), the method comprising: Receive a unicast downlink control indicator (DCI) that indicates one or more transmission power control (TPC) commands, each of which is associated with a UL CC in one or more uplink (UL) component carriers (CCs), and at least one of the UL CCs is configured with at least one closed-loop power control (CLPC) adjustment state in one of a plurality of closed-loop power control (CLPC) adjustment states. The configuration indicator identifies whether to use an explicit indication in the unicast DCI, two TPC Sounding Reference Signal (SRS) Radio Network Temporary Identifiers (TPC-SRS-RNTI), or an SRS Request field to determine whether at least one of the one or more TPC commands is associated with at least one CPLC adjustment state among the multiple CLPC adjustment states. as well as Based on the configuration indicator, each of the at least one TPC command associated with the at least one UL CC is applied to the corresponding CLPC adjustment state among the plurality of CLPC adjustment states.
2. The method of claim 1, wherein the explicit indication in the unicast DCI indicates: The first TPC command in the one or more TPC commands is associated with the first CLPC adjustment state in the plurality of CLPC adjustment states; and The second TPC command in the one or more TPC commands is associated with the second CLPC adjustment state in the plurality of CLPC adjustment states.
3. The method of claim 1, wherein the explicit indication in the unicast DCI includes a closed-loop indicator indicating whether the TPC command in the one or more TPC commands is associated with a first CLPC adjustment state or a second CLPC adjustment state among the plurality of CLPC adjustment states.
4. The method of claim 1, wherein identifying the configuration indicator comprises: The configuration indicator is received, which indicates that the two TPC-SRS-RNTIs are used to determine that the at least one TPC command is associated with the following: In response to the unicast DCI being scrambled by the first TPC-SRS-RNTI of the two TPC-SRS-RNTIs: the first CLPC adjustment state of the plurality of CLPC adjustment states; or In response to the unicast DCI, the second TPC-SRS-RNTI of the two TPC-SRS-RNTIs is scrambled: the second CLPC adjustment state of the plurality of CLPC adjustment states.
5. The method of claim 1, wherein identifying the configuration indicator comprises: The at least one TPC command is associated with the following: In response to receiving the unicast DCI in a first resource among a first plurality of resources: the first CLPC adjustment state among the plurality of CLPC adjustment states; or In response to receiving the unicast DCI in the second resource of the second plurality of resources: the second CLPC adjustment state of the plurality of CLPC adjustment states.
6. The method of claim 1, wherein the at least one TPC command is associated with: In response to one or more triggered SRS resource sets being configured with a first CLPC adjustment state among the plurality of CLPC adjustment states: the first CLPC adjustment state; or In response to one or more triggered SRS resource sets being configured with a second CLPC adjustment state among the plurality of CLPC adjustment states: the second CLPC adjustment state.
7. The method of claim 1, wherein the at least one TPC command is associated with: The first CLPC adjustment state among the plurality of CLPC adjustment states; CLPC adjustment status configured for one or more SRS resource sets that have the lowest or highest identifier; or The first CLPC adjustment state and the second CLPC adjustment state among the plurality of CLPC adjustment states.
8. The method of claim 1, wherein in response to the triggering of a periodic or semi-persistent SRS resource set, the at least one TPC command is associated with a CLPC adjustment state having the periodic or semi-persistent SRS resource set.
9. The method of claim 1, wherein in response to the SRS request field having a specific value, the at least one TPC command is associated with a CLPC adjustment state having a periodic or semi-persistent SRS resource set.
10. The method of claim 1, wherein the at least one TPC command is associated with a CLPC adjustment state having a periodic or semi-persistent SRS resource set and not having an aperiodic SRS resource set.
11. A user equipment (UE), the user equipment (UE) comprising: One or more memory units; transceiver; and and one or more processors, said one or more processors being communicatively coupled to said one or more memories and said transceiver, said one or more processors being configured to: Receive a unicast downlink control indicator (DCI) that indicates one or more transmission power control (TPC) commands, each of which is associated with a UL CC in one or more uplink (UL) component carriers (CCs), and at least one of the UL CCs is configured with at least one closed-loop power control (CLPC) adjustment state in one of a plurality of closed-loop power control (CLPC) adjustment states. The configuration indicator identifies whether to use an explicit indication in the unicast DCI, two TPC Sounding Reference Signal (SRS) Radio Network Temporary Identifiers (TPC-SRS-RNTI), or an SRS Request field to determine whether at least one of the one or more TPC commands is associated with at least one CPLC adjustment state among the multiple CLPC adjustment states. as well as Based on the configuration indicator, each of the at least one TPC command associated with the at least one UL CC is applied to the corresponding CLPC adjustment state among the plurality of CLPC adjustment states.
12. The UE of claim 9, wherein the explicit indication in the unicast DCI indicates: The first TPC command in the one or more TPC commands is associated with the first CLPC adjustment state in the plurality of CLPC adjustment states; and The second TPC command in the one or more TPC commands is associated with the second CLPC adjustment state in the plurality of CLPC adjustment states.
13. The UE of claim 9, wherein the explicit indication in the unicast DCI includes a closed-loop indicator indicating whether the TPC command in the one or more TPC commands is associated with a first CLPC adjustment state or a second CLPC adjustment state among the plurality of CLPC adjustment states.
14. The UE of claim 9, wherein identifying the configuration indicator comprises: The configuration indicator is received, which indicates that the two TPC-SRS-RNTIs are used to determine that the at least one TPC command is associated with the following: In response to the unicast DCI being scrambled by the first TPC-SRS-RNTI of the two TPC-SRS-RNTIs: the first CLPC adjustment state of the plurality of CLPC adjustment states; or In response to the unicast DCI, the second TPC-SRS-RNTI of the two TPC-SRS-RNTIs is scrambled: the second CLPC adjustment state of the plurality of CLPC adjustment states.
15. The UE of claim 9, wherein identifying the configuration indicator comprises: The at least one TPC command is associated with the following: In response to receiving the unicast DCI in a first resource among a first plurality of resources: the first CLPC adjustment state among the plurality of CLPC adjustment states; or In response to receiving the unicast DCI in the second resource of the second plurality of resources: the second CLPC adjustment state of the plurality of CLPC adjustment states.
16. The UE of claim 9, wherein the at least one TPC command is associated with: In response to one or more triggered SRS resource sets being configured with a first CLPC adjustment state among the plurality of CLPC adjustment states: the first CLPC adjustment state; or In response to one or more triggered SRS resource sets being configured with a second CLPC adjustment state among the plurality of CLPC adjustment states: the second CLPC adjustment state.
17. The UE of claim 9, wherein the at least one TPC command is associated with: The first CLPC adjustment state among the plurality of CLPC adjustment states; CLPC adjustment status configured for one or more SRS resource sets that have the lowest or highest identifier; or The first CLPC adjustment state and the second CLPC adjustment state among the plurality of CLPC adjustment states.
18. The UE of claim 9, wherein in response to a periodic or semi-persistent SRS resource set being triggered, the at least one TPC command is associated with a CLPC adjustment state having the periodic or semi-persistent SRS resource set.
19. The UE of claim 9, wherein in response to the SRS request field having a specific value, the at least one TPC command is associated with a CLPC adjustment state having a periodic or semi-persistent SRS resource set.
20. A user equipment (UE), the user equipment (UE) comprising: A component for receiving a unicast downlink control indicator (DCI) that indicates one or more transmission power control (TPC) commands, each of which is associated with a UL CC in one or more uplink (UL) component carriers (CCs), and at least one of the UL CCs is configured with at least one closed-loop power control (CLPC) adjustment state in one of a plurality of closed-loop power control (CLPC) adjustment states. The component used to identify the configuration indicator indicates whether the explicit indication in the unicast DCI, the two TPC Sounding Reference Signal (SRS) Radio Network Temporary Identifiers (TPC-SRS-RNTI), or the SRS Request field is used to determine whether at least one of the one or more TPC commands is associated with at least one of the multiple CLPC adjustment states. and The component is used to: apply each of the at least one TPC commands associated with the at least one UL CC to the corresponding CLPC adjustment state in the plurality of CLPC adjustment states, based on the configuration indicator.
