Semi-persistent reporting of channel state information
By transmitting multiple CSI report instances in a wireless communication system, utilizing different transmit beams and SRS resource sets, and combining DCI triggering conditions, the problem of insufficient CSI report reliability was solved, thereby improving communication success rate and network performance.
Patent Information
- Application Number
- CN202511697877.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2021-11-30
- Filing Date
- 2021-12-01
- Publication Date
- 2026-01-13
AI Technical Summary
Existing wireless communication systems are deficient in the reliability and efficiency of channel state information (CSI) reporting, especially in multi-user and multi-antenna array environments, making it difficult to effectively improve the success rate and reliability of communication.
By transmitting multiple CSI report instances between the user equipment (UE) and the base station, using different transmit beams and detection reference signal (SRS) resource sets, activating periodic CSI reports in conjunction with downlink control information (DCI), and performing multiple uplink shared channel transmissions based on trigger conditions, the reliability of CSI reports is improved.
It improves the reliability and success rate of CSI reports, enhances network throughput and communication reliability, especially in multi-antenna arrays and complex environments.
Smart Images

Figure CN121333367A_ABST
Abstract
Description
[0001] This application is a divisional application of Chinese invention patent application No. 202180085755.4 (International Application No. PCT / US2021 / 072660) filed on December 1, 2021, entitled "Semi-persistent Report of Channel State Information".
[0002] This patent application claims priority to U.S. Patent Application No. 17 / 538,851, entitled “SEMIPERSISTENT REPORTING OF CHANNEL STATE INFORMATION”, filed November 30, 2021, and U.S. Provisional Patent Application No. 63 / 131,287, entitled “SEMIPERSISTENT REPORTING OF CHANNEL STATE INFORMATION”, filed December 28, 2020, by KHOSHNEVISAN et al.; each of these applications is assigned to the assignee of this application. Technical Field
[0003] The following pertains to wireless communication, including semi-persistent reporting of channel state information. Background Technology
[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, broadcasting, and so on. These systems can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems (such as Long Term Evolution (LTE) systems, LTE-A Advanced (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems can employ various technologies, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication from multiple communication devices, which may also be referred to as User Equipment (UE).
[0005] Some wireless communication systems can support communication using one or more antenna arrays at different devices. For example, a network can use one or more transmit / receive points (TRPs) to communicate with a UE, where each TRP and UE can have one or more antenna arrays to form a directional beam. Efficient communication between each UE and one or more TRPs can help improve network throughput, latency, and reliability, and therefore, further improvements to techniques for efficient communication are desirable. Summary of the Invention
[0006] The described techniques relate to improved methods, systems, devices, and apparatuses for supporting semi-persistent reporting of channel state information. Various aspects provide techniques for communication between a user equipment (UE) and a base station, wherein the UE can transmit multiple repetitions of uplink communication via different transmit beams to increase the likelihood of successful uplink communication reception. For example, the base station can transmit signaling activating periodic channel state information (CSI) reporting, and the UE can identify a triggering condition that triggers both a first instance and a second instance of the CSI report within a period of the periodic CSI report. The UE can then transmit the first instance of the CSI report via a first uplink shared channel (e.g., via a first physical uplink shared channel (PUSCH)) and the second instance of the CSI report via a second uplink shared channel (e.g., via a second PUSCH) during a single period of the periodic CSI report. By transmitting multiple instances of the CSI report, the reliability of the CSI report can be higher than that of a single instance of the CSI report being transmitted. Additionally, the UE can use different Probe Reference Signal (SRS) resource sets (e.g., each SRS resource set associated with a different transmit beam) to transmit the first and second instances of the CSI report. Here, transmitting multiple instances of the CSI report via both the first and second SRS resource sets can further improve the reliability of the CSI report compared to a CSI report utilizing a single SRS resource set.
[0007] A method for wireless communication at a UE is described. The method may include: receiving downlink control information (DCI) from a base station, the DCI activating periodic CSI reports transmitted via an uplink shared channel; identifying a trigger condition that triggers the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report; and, based on the satisfaction of the trigger condition, transmitting the first instance of the CSI report via a first uplink shared channel and transmitting the second instance of the CSI report via a second uplink shared channel, both of the first and second uplink shared channel transmissions occurring within the period of the periodic CSI report.
[0008] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. These instructions are executable by the processor to cause the apparatus to: receive a DCI from a base station, the DCI activating periodic CSI reports transmitted via an uplink shared channel; identify a trigger condition that triggers the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report; and, based on the satisfaction of the trigger condition, transmit the first instance of the CSI report via a first uplink shared channel and transmit the second instance of the CSI report via a second uplink shared channel, both of the first and second uplink shared channel transmissions occurring within the period of the periodic CSI report.
[0009] Another apparatus for wireless communication at a UE is described. The apparatus may include: means for receiving a DCI from a base station, the DCI activating periodic CSI reports transmitted via an uplink shared channel; means for identifying a trigger condition that triggers the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report; and means for transmitting the first instance of the CSI report via a first uplink shared channel and the second instance of the CSI report via a second uplink shared channel based on the fulfillment of the trigger condition, both the first and second uplink shared channel transmissions occurring within the period of the periodic CSI report.
[0010] A non-transient computer-readable medium is described, storing code for wireless communication at a UE. The code may include instructions executable by a processor to: receive a DCI from a base station activating a periodic CSI report transmitted via an uplink shared channel; identify a trigger condition that triggers the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report; and, based on the satisfaction of the trigger condition, transmit the first instance of the CSI report via a first uplink shared channel and the second instance of the CSI report via a second uplink shared channel, both of which occur within the period of the periodic CSI report.
[0011] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for determining that the triggering condition can be satisfied based on both the DCI indication of a first SRS resource set associated with a first uplink shared channel transmission and a second SRS resource set associated with a second uplink shared channel transmission.
[0012] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the transmission may include operations, features, means or instructions for: transmitting a first instance of the CSI report via a first uplink shared channel using a first transmit beam associated with a first SRS resource set; and transmitting a second instance of the CSI report via a second uplink shared channel using a second transmit beam associated with a second SRS resource set.
[0013] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for determining that the triggering condition can be met based on more than one repetition of uplink shared channel transmission within the period of the periodic CSI report indicated by the DCI.
[0014] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for receiving from a base station a radio resource control (RRC) signaling indicating a set of multiple trigger states, each trigger state being associated with a CSI reporting configuration, wherein the DCI activates the periodic CSI reporting by indicating one of the multiple trigger states from the set of trigger states.
[0015] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for determining that a triggering condition can be met based on a triggering state associated with a CSI reporting configuration, the CSI reporting configuration indicating the transmission of both a first instance of the CSI report and a second instance of the CSI report within a period of the periodic CSI report.
[0016] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for determining that a triggering condition can be met based on the value of a field within the DCI, the field being configured to indicate the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report, or the transmission of a single CSI report within a period of the periodic CSI report.
[0017] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for determining, based on the satisfaction of the triggering condition, two repetitions of PUSCH to be transmitted in each period of the periodic CSI report, the two repetitions including a first uplink shared channel transmission and a second uplink shared channel transmission.
[0018] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the configured number of repetitions of the PUSCH transmission within each cycle of the periodic CSI may be one or more than two.
[0019] Some examples of the methods, apparatus (devices) and nontransient computer-readable media described herein may further include operations, features, means, or instructions for: determining, after a period of the periodic CSI report, that a second CSI report shall be transmitted via a third PUSCH transmission and a fourth PUSCH transmission during a second period of the periodic CSI report; identifying that the actual transmission of one of the PUSCH transmissions from the third or fourth PUSCH transmission may differ from the nominal transmission of that PUSCH transmission; and suppressing the transmission of that PUSCH transmission during the second period of the periodic CSI report based on the identification that the actual transmission may differ from the nominal transmission.
[0020] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for transmitting another PUSCH transmission within a second period of the periodic CSI report, based on the actual transmission from a third PUSCH transmission and a fourth PUSCH transmission being identical to the nominal transmission of that other PUSCH transmission, which includes a second CSI report.
[0021] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, devices or instructions for suppressing the transmission of another PUSCH transmission based on the fact that the actual transmission of another PUSCH transmission from a third PUSCH transmission and a fourth PUSCH transmission is different from the nominal transmission of that other PUSCH transmission.
[0022] In some examples of the methods, apparatus (devices) and nontransient computer-readable media described herein, the DCI activates the periodic CSI report based on an indication of a trigger state associated with a CSI report configuration indicating a first transmit power and a second transmit power, wherein a first instance of transmitting the CSI report and a second instance of transmitting the CSI report may be based on at least one of the first transmit power or the second transmit power.
[0023] In some examples of the methods, apparatus (devices) and nontransient computer-readable media described herein, the transmission may include operations, features, means or instructions for: transmitting a first instance of the CSI report via a first uplink shared channel using a first SRS resource set indicated by the DCI, based on a first transmit power; and transmitting a second instance of the CSI report via a second uplink shared channel using a second SRS resource set indicated by the DCI, based on a second transmit power.
[0024] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the transmission may include operations, features, means or instructions for transmitting both a first instance of the CSI report and a second instance of the CSI report according to a first transmit power based on a single SRS resource set indicated by the DCI, wherein both the first uplink shared channel transmission and the second uplink shared channel transmission use the single SRS resource set.
[0025] A method for wireless communication at a base station is described. The method may include: transmitting a DCI to a UE, the DCI activating periodic CSI reports transmitted via an uplink shared channel; indicating a triggering condition that triggers the UE to transmit both a first instance and a second instance of the CSI report within a period of the periodic CSI report; and, based on the satisfaction of the triggering condition, receiving the first instance of the CSI report via a first uplink shared channel and receiving the second instance of the CSI report via a second uplink shared channel, both of the first and second uplink shared channel transmissions occurring within the period of the periodic CSI report.
[0026] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. These instructions are executable by the processor to cause the apparatus to: transmit a DCI to a UE, the DCI activating periodic CSI reports transmitted via an uplink shared channel; indicate a trigger condition that triggers both a first instance and a second instance of the CSI report transmitted by the UE within the period of the periodic CSI report; and, based on the satisfaction of the trigger condition, transmit the first instance of the CSI report via a first uplink shared channel and the second instance of the CSI report via a second uplink shared channel, both of the first and second uplink shared channel transmissions occurring within the period of the periodic CSI report.
[0027] Another apparatus for wireless communication at a base station is described. The apparatus may include: means for transmitting a DCI to a UE, the DCI activating a periodic CSI report transmitted via an uplink shared channel; means for indicating a triggering condition that triggers the UE to transmit both a first instance and a second instance of the CSI report within the period of the periodic CSI report; and means for receiving the first instance of the CSI report transmitted via a first uplink shared channel and the second instance of the CSI report transmitted via a second uplink shared channel based on the satisfaction of the triggering condition, both the first and second uplink shared channel transmissions occurring within the period of the periodic CSI report.
[0028] A non-transient computer-readable medium is described, storing code for wireless communication at a base station. The code may include instructions executable by a processor to: transmit a DCI to a UE, the DCI activating periodic CSI reports transmitted via an uplink shared channel; indicate a trigger condition that triggers the UE to transmit both a first instance and a second instance of the CSI report within the period of the periodic CSI report; and, based on the satisfaction of the trigger condition, transmit the first instance of the CSI report via a first uplink shared channel and receive the second instance of the CSI report via a second uplink shared channel, both of the first and second uplink shared channel transmissions occurring within the period of the periodic CSI report.
[0029] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the triggering condition may be satisfied based on both the DCI indication of a first SRS resource set associated with a first uplink shared channel transmission and a second SRS resource set associated with a second uplink shared channel transmission.
[0030] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, a first instance of the CSI report received via a first uplink shared channel may be associated with a first transmit beam corresponding to a first SRS resource set; and a second instance of the CSI report received via a second uplink shared channel may be associated with a second transmit beam corresponding to a second SRS resource set.
[0031] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the triggering condition may be satisfied based on more than one repetition of uplink shared channel transmission within the period indicated by the DCI instructing the periodic CSI report.
[0032] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for transmitting RRC signaling to the UE indicating a set of multiple trigger states, each trigger state being associated with a CSI reporting configuration, wherein the DCI activates the periodic CSI reporting by indicating one of the multiple trigger states from the set of trigger states.
[0033] In some examples of the methods, apparatuses, and nontransient computer-readable media described herein, the triggering condition may be satisfied based on a triggering state associated with a CSI reporting configuration that instructs the UE to transmit both a first instance and a second instance of the CSI report within the period of the periodic CSI report.
[0034] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the triggering condition may be satisfied based on the value of a field within the DCI, which may be configured to instruct the UE to transmit both a first instance and a second instance of the CSI report within the periodic CSI report period, or to instruct the UE to transmit a single CSI report within the periodic CSI report period.
[0035] In some examples of the methods, apparatus (devices) and nontransient computer-readable media described herein, the DCI activates the periodic CSI report based on an indication of a trigger state associated with a CSI report configuration indicating a first transmit power and a second transmit power, wherein a first instance of receiving the CSI report and a second instance of receiving the CSI report may be based on at least one of the first transmit power or the second transmit power.
[0036] In some examples of the methods, apparatus (devices) and nontransient computer-readable media described herein, receiving may include operations, features, means, or instructions for: receiving a CSI report via a first uplink shared channel transmission having a first transmit power and associated with a first SRS resource set indicated by the DCI; and receiving a second CSI report via a second uplink shared channel transmission having a second transmit power and associated with a second SRS resource set indicated by the DCI.
[0037] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving may include operations, features, means, or instructions for receiving both a first uplink shared channel transmission and a second uplink shared channel transmission using a single SRS resource set indicated by the DCI, wherein both the first uplink shared channel transmission and the second uplink shared channel transmission may have a first transmit power. Attached Figure Description
[0038] Figure 1 An example of a wireless communication system that supports semi-persistent reporting of channel state information (CSI) according to various aspects of this disclosure is explained.
[0039] Figure 2 Examples of wireless communication systems supporting CSI semi-persistent reporting according to various aspects of this disclosure are explained.
[0040] Figure 3A and 3B An example of a PUSCH transport configuration supporting CSI semi-persistent reporting is explained according to various aspects of this disclosure.
[0041] Figure 4 An example of a process flow supporting CSI semi-persistent reporting based on various aspects of this disclosure is explained.
[0042] Figure 5 and 6 A block diagram of an apparatus supporting semi-persistent reporting of CSI is shown according to various aspects of this disclosure.
[0043] Figure 7 A block diagram of a communication manager supporting semi-persistent reporting of CSI is shown according to various aspects of this disclosure.
[0044] Figure 8 A diagram of a system including a device supporting semi-persistent reporting of CSI is shown according to various aspects of this disclosure.
[0045] Figure 9 and 10A block diagram of an apparatus supporting semi-persistent reporting of CSI is shown according to various aspects of this disclosure.
[0046] Figure 11 A block diagram of a communication manager supporting semi-persistent reporting of CSI is shown according to various aspects of this disclosure.
[0047] Figure 12 A diagram of a system including a device supporting semi-persistent reporting of CSI is shown according to various aspects of this disclosure.
[0048] Figures 13 to 19 A flowchart illustrating a method for supporting CSI semi-persistent reporting according to various aspects of this disclosure is shown. Detailed Implementation
[0049] In some wireless communication systems, a User Equipment (UE) can communicate with a base station using multiple repetitions of uplink communication (in some cases via different transmit beams) to increase the likelihood of successfully receiving uplink communication. For example, the base station can transmit signaling to activate Periodic Channel State Information (CSI) reporting, and the UE can identify a trigger condition that triggers both a first instance and a second instance of the CSI report within a period of the periodic CSI report. The UE can then transmit the first instance of the CSI report via a first uplink shared channel (e.g., via a first physical uplink shared channel (PUSCH)) and the second instance of the CSI report via a second uplink shared channel (e.g., via a second PUSCH) during a single period of the periodic CSI report. By transmitting multiple instances of the CSI report, the reliability of the CSI report can be higher than that of transmitting a single instance. Additionally, the UE can use different SRS resource sets (e.g., each SRS resource set associated with a different transmit beam) to transmit the first and second instances of the CSI report. Here, the reliability of CSI reports can be further improved by transmitting multiple instances of CSI reports through both the first and second SRS resource sets compared to CSI reports using a single SRS resource set.
[0050] The aspects of this disclosure are initially described in the context of a wireless communication system. The aspects of this disclosure are subsequently described in the context of PUSCH transmission configuration and process flow. The aspects of this disclosure are further explained and described by means of and reference to apparatus diagrams, system diagrams, and flowcharts relating to semi-persistent reporting of channel state information.
[0051] Figure 1Examples of a wireless communication system 100 supporting semi-persistent reporting of CSI according to various aspects of this disclosure are described. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low latency communication, communication with low-cost and low-complexity devices, or any combination thereof.
[0052] Base station 105 can be distributed across a geographical area to form wireless communication system 100, and can be different types of devices or devices with different capabilities. Base station 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110, and UE 115 and base station 105 can establish one or more communication links 125 on the coverage area 110. Coverage area 110 can be an example of a geographical area over which base station 105 and UE 115 can support signal communication according to one or more radio access technologies.
[0053] Each UE 115 can be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary or mobile, or stationary and mobile at different times. Each UE 115 can be a different type of device or a device with different capabilities. Figure 1 The document describes some example UE 115s. The UE 115 described herein can communicate with various types of devices, such as other UE 115s, base station 105, or network equipment (e.g., core network nodes, relay equipment, integrated access and backhaul (IAB) nodes, or other network equipment). Figure 1 As shown in the image.
[0054] Each base station 105 may communicate with the core network 130, or with each other, or both. For example, base station 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base stations 105 may communicate with each other directly (e.g., directly between base stations 105), indirectly (e.g., via the core network 130), or directly and indirectly on backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, backhaul link 120 may be or include one or more radio links.
[0055] One or more of the base stations 105 described herein may include, or may be referred to by those skilled in the art as, base transceiver station, radio base station, access point, radio transceiver, B node, evolved B node (eNB), next-generation B node or gigabit B node (any of which may be referred to as gNB), home B node, home evolved B node, or other suitable terms.
[0056] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other suitable term, wherein "device" may also be referred to as a cell, station, terminal, or client, etc. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, which may be implemented in various objects such as appliances or vehicles, meters, etc.
[0057] The UE 115 described herein can communicate with various types of devices, such as other UEs 115 that sometimes act as relays, as well as base station 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 As shown in the image.
[0058] UE 115 and base station 105 can wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term "carrier" can refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of the radio spectrum band (e.g., a bandwidth portion (BWP)) operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating carrier operation, user data, or other signaling. Wireless communication system 100 may support communication with UE 115 using carrier aggregation or multi-carrier operation. UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation can be used in conjunction with frequency division duplex (FDD) and time division duplex (TDD) component carriers.
[0059] The signal waveform transmitted on the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In a system employing MCM, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the code rate of the modulation scheme, or both). Thus, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate the UE 115 can achieve. Wireless communication resources can refer to a combination of radio frequency spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and using multiple spatial layers can further improve the data rate or data integrity of communication with the UE 115.
[0060] The time interval of base station 105 or UE 115 can be expressed as a multiple of a basic time unit, such as the sampling period T. s =1 / (∆f max ∙N f ) seconds, where ∆f max This can represent the maximum supported subcarrier spacing, while N f This can represent the maximum supported Discrete Fourier Transform (DFT) size. The time interval of the communication resources can be organized according to radio frames, each with a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a System Frame Number (SFN) (e.g., ranging from 0 to 1023).
[0061] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may (e.g., in the time domain) be divided into subframes, and each subframe may be further divided into several time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include several symbol periods (e.g., depending on the length of the cyclic prefix added before each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple mini-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., N) symbols. f Sampling period. The duration of the symbol period can depend on the subcarrier spacing or the operating frequency band.
[0062] A subframe, time slot, mini-slot, or symbol can be the smallest scheduling unit of the wireless communication system 100 (e.g., in the time domain) and can be referred to as a transmission time interval (TTI). In some examples, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).
[0063] Physical channels can be multiplexed on a carrier using various techniques. Physical control channels and physical data channels can be multiplexed on a downlink carrier, for example, using one or more of time-division multiplexing (TDM), frequency-division multiplexing (FDM), or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for physical control channels can be defined by the number of symbol periods and can extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESET) can be configured for a set of UEs 115. For example, one or more of the UEs 115 can monitor or search control regions for control information based on one or more search space sets, and each search space set can include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for control channel candidates can refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information in a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UEs 115 and a UE-specific search space set configured to send control information to a specific UE 115.
[0064] In some examples, base station 105 may be mobile, and thus provide communication coverage to mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. Wireless communication system 100 may include, for example, a heterogeneous network, in which different types of base stations 105 use the same or different radio access technologies to provide coverage to various geographic coverage areas 110.
[0065] The wireless communication system 100 can support synchronous or asynchronous operation. For synchronous operation, base stations 105 can have similar frame timing, and transmissions from different base stations 105 can be approximately time-aligned. For asynchronous operation, base stations 105 can have different frame timing, and transmissions from different base stations 105 may not be time-aligned in some examples. The techniques described herein can be used for both synchronous and asynchronous operation.
[0066] Wireless communication system 100 may be configured to support ultra-reliable communication or low latency communication, or various combinations thereof. For example, wireless communication system 100 may be configured to support ultra-reliable low latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private or group communication and may be supported by one or more mission-critical services, such as Mission-Critical Talk-to-Talk (MCPTT), Mission-Critical Video (MCVideo), or Mission-Critical Data (MCData). Support for mission-critical functions may include prioritization of services, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low latency, mission-critical, and ultra-reliable low latency are used interchangeably herein.
[0067] In some examples, UE 115 may also be able to communicate directly with other UE 115 on a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UE 115s utilizing D2D communication may be within the geographic coverage area 110 of base station 105. Other UE 115s in such a group may be outside the geographic coverage area 110 of base station 105 or may be unable to receive transmissions from base station 105 for other reasons. In some examples, groups of UE 115s communicating via D2D communication may utilize a one-to-many (1:M) system, where each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between the individual UE 115s without involving base station 105.
[0068] Core network 130 provides user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an evolved packet core (EPC) or a 5G core (5GC). The EPC or 5GC may include at least one control plane entity (e.g., a Mobility Management Entity (MME), Access and Mobility Management Function (AMF)) managing access and mobility, and at least one user plane entity (e.g., a Serving Gateway (S-GW), Packet Data Network (PDN) Gateway (P-GW), or User Plane Function (UPF)) routing packets or interconnecting to external networks. The control plane entity manages non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by base station 105 associated with core network 130. User IP packets can be delivered through the user plane entity, which provides IP address allocation and other functions. The user plane entity may be connected to one or more network operator IP services 150. The IP service 150 may include access to the Internet, intranet, IP Multimedia Subsystem (IMS), or packet-switched streaming services.
[0069] Some network devices (such as base station 105) may include sub-components, such as access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with each UE 115 through one or more other access network transport entities 145, which may be referred to as a radio headend, smart radio headend, or transmit / receive point (TRP). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio headends and ANCs) or combined into a single network device (e.g., base station 105).
[0070] Wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 MHz to 300 GHz. Generally, the 300 MHz to 3 GHz band is referred to as a UHF band or decimeter band because the wavelengths range from approximately 1 decimeter to 1 meter. UHF waves can be blocked or redirected by buildings and environmental features, but these waves can penetrate various structures sufficiently for macrocells to provide service to UE 115 located indoors. Compared to transmissions using smaller frequencies and longer waves in the lower HF or VHF portions of the spectrum below 300 MHz, UHF wave transmission can be associated with smaller antennas and shorter ranges (e.g., less than 100 km).
[0071] Wireless communication system 100 may utilize both licensed and unlicensed radio spectrum bands. For example, wireless communication system 100 may employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in unlicensed frequency bands, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in unlicensed radio spectrum bands, devices (such as base station 105 and UE 115) may employ carrier sensing for collision detection and avoidance. In some examples, operation in unlicensed frequency bands may be based on carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in licensed frequency bands. Operation in unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, etc.
[0072] Base station 105 or UE 115 may be equipped with multiple antennas that can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with base station 105 may be located in different geographical locations. Base station 105 may have an antenna array with several rows and columns of antenna ports that base station 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted via the antenna ports.
[0073] Base station 105 or UE 115 can use MIMO communication to leverage multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. This technique is known as spatial multiplexing. For example, a transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), where multiple spatial layers are transmitted to the same receiving device; and multi-user MIMO (MU-MIMO), where multiple spatial layers are transmitted to multiple devices.
[0074] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., base station 105, UE 115) to shape or guide an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array, such that some signals propagating relative to a particular orientation of the antenna array experience constructive interference, while others experience destructive interference. Adjustments to the signals transmitted via the antenna elements may include the transmitting or receiving device applying amplitude offset, phase offset, or both to the signals carried via the antenna elements associated with that device. The adjustments associated with each antenna element may be defined by a beamforming weight set associated with a particular orientation (e.g., the antenna array relative to the transmitting or receiving device, or relative to some other orientation).
[0075] Base station 105 or UE 115 may use beamsweeping techniques as part of beamforming operations. For example, base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by base station 105 in different directions. For example, base station 105 may transmit signals according to different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by the transmitting device (such as base station 105) or the receiving device (such as UE 115)) to identify the beam direction that base station 105 will use for later transmission or reception.
[0076] Some signals, such as data signals associated with a specific receiving device, may be transmitted by base station 105 in a single beam direction (e.g., the direction associated with the receiving device, such as UE 115). In some examples, the beam direction associated with transmission along a single beam direction may be determined based on the signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signals received by UE 115 with the highest signal quality or other acceptable signal quality.
[0077] In some examples, transmissions performed by a device (e.g., by base station 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate combined beams for transmission (e.g., from base station 105 to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and this feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. Base station 105 may transmit reference signals that can be precoded or uncoded (e.g., cell-specific reference signals (CRS), CSI reference signals (CSI-RS)). UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel type codebook, linear combination type codebook, port selection type codebook). Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may use similar techniques to transmit signals multiple times in different directions (e.g., to identify the beam direction used by UE 115 for subsequent transmission or reception) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).
[0078] A receiver device (e.g., UE 115) may attempt multiple receive configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105. For example, the receiver device may attempt multiple receive directions by: receiving via different antenna subarrays; processing received signals according to different antenna subarrays; receiving according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets); or processing received signals according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of the antenna array, any of which may be referred to as "listening" according to different receive configurations or receive directions. In some examples, the receiver device may use a single receive configuration to receive along a single beam direction (e.g., when a data signal is received). The single receive configuration may be aligned on a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).
[0079] In some wireless communication systems 100, UE 115 may communicate with base station 105 using multiple repetitions of uplink communication (in some cases via different transmit beams) to increase the likelihood of successfully receiving uplink communication. For example, base station 105 may transmit signaling to activate periodic CSI reporting, and UE 115 may identify a trigger condition that triggers both a first instance and a second instance of the CSI report within a period of periodic CSI reporting. UE 115 may then transmit the first instance of the CSI report via a first uplink shared channel (e.g., via a first physical uplink shared channel (PUSCH)) and the second instance of the CSI report via a second uplink shared channel (e.g., via a second PUSCH) during a single period of the periodic CSI report. By transmitting multiple instances of the CSI report, the reliability of the CSI report can be higher than that of transmitting a single instance of the CSI report. Additionally, UE115 can use different SRS resource sets (e.g., each SRS resource set associated with a different transmit beam) to transmit the first and second instances of the CSI report. Here, transmitting multiple instances of the CSI report via both the first and second SRS resource sets can further improve the reliability of the CSI report compared to a CSI report using a single SRS resource set.
[0080] Figure 2 Examples of a wireless communication system 200 supporting semi-persistent reporting of CSI according to various aspects of this disclosure are described. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a base station 105 and a UE 115-a, which may be as described in reference... Figure 1 Examples of the corresponding devices described herein. It should be understood that references to specific wireless devices (e.g., UE 115, TRP, base station 105) in the following figures are provided for illustrative purposes, and different wireless devices not specifically mentioned herein may be used interchangeably with those described herein. Similarly, in some cases, the operations described by UE 115-a may be performed by base station 105-a (or the TRP associated with base station 105-a), and vice versa.
[0081] In some scenarios, the communication described in the wireless communication system 200 may be an example of UE 115-a performing a semi-persistent CSI report in response to downlink control information (DCI) 215 activating periodic CSI reports transmitted via the uplink shared channel (e.g., via PUSCH transmission 230). Prior to transmitting DCI 215, base station 105-a may transmit Radio Resource Control (RRC) signaling 210 indicating a set of trigger states (e.g., up to 64 trigger states), each trigger state associated with a CSI report configuration corresponding to a unique CSI report setting. For example, base station 105-a may transmit RRC signaling 210 including the SemiPersistentOnPUSCH-TriggerStateList parameter. For example, each trigger state may indicate a period 225 of periodic CSI reporting (e.g., based on the number of slots indicated by the reportSlotConfig parameter). Additionally, each trigger state may indicate the transmit power of the PUSCH transmission 230 carrying periodic CSI reports 220 (e.g., by indicating P0, or offset and α, or a factor for partial power loss compensation).
[0082] In some cases, RRC signaling 210 may additionally configure the PUSCH repetition type of PUSCH transmission 230. For example, base station 105-a may (e.g., via RRC signaling 210) indicate a PUSCH repetition type where each repetition of the PUSCH transmission is transmitted via the same set of time slots within a symbol. For example, base station 105-a may instruct UE 115-a to transmit each repetition of the PUSCH transmission via time slots four through ten within several symbols (e.g., the same number of PUSCH repetitions). In another example, base station 105-a may indicate a PUSCH repetition type where each PUSCH repetition is coherent. For example, each PUSCH repetition may be transmitted via a coherent set of symbols spanning time slot boundaries. In this PUSCH repetition type, base station 105-a may indicate a nominal number of PUSCH repetition transmissions, which may differ from the actual number of PUSCH repetition transmissions. In one case, a nominal PUSCH repetition transmission may include symbols spanning time slot boundaries. Here, UE 115-a may transmit two actual PUSCH repeats corresponding to a single nominal PUSCH repeat (e.g., each actual PUSCH repeat is associated with a symbol associated with a single time slot). In another case, UE 115-a may determine that one or more of the symbols associated with the nominal PUSCH repeat may be invalid (e.g., due to semi-static downlink symbols, symbol invalidation indications, synchronization signal block (SSB) symbols, or symbols associated with control resource set (CORESET) 0 for the type 0 physical downlink control channel (PDCCH). Here, the actual PUSCH repeat may include fewer symbols than the nominal PUSCH repeat.
[0083] After transmitting RRC signaling 210, base station 105-a may transmit DCI 215, which activates periodic CSI reports transmitted via PUSCH. In some cases, DCI 215 may indicate one of the trigger states configured by RRC signaling 210. In some instances, DCI 215 may be scrambled using semi-persistent channel state information—Radio Network Temporary Identifier (SP-CSI-RNTI).
[0084] Based on the received DCI 215, UE 115-a can identify a single CSI report configuration associated with the indicated trigger state. UE 115-a can further identify whether a trigger condition is met, which triggers the transmission of both a first instance and a second instance of CSI report 220 within the periodic CSI report period 225. If UE 115-a determines that the trigger condition is met, UE 115-a can transmit the first instance of CSI report 220 via a first PUSCH transmission 230 and the second instance of CSI report 220 via a second PUSCH transmission 230 within each period 225 of the periodic CSI report by transmitting beam 205. For example, UE 115-a can transmit the first instance of CSI report 220 via PUSCH transmission 230-a and the second instance of CSI report 220 via PUSCH transmission 230-b within period 225-a. Alternatively, if UE 115-a determines that the triggering condition is not met, UE 115-a may transmit a single instance of CSI report 220 via transmit beam 205 within each period 225 of the periodic CSI report. That is, UE 115-a may transmit CSI report 220 via PUSCH transmissions 230-a, 230-c, and 230-e, and may suppress the transmission of CSI reports via PUSCH transmissions 230-b, 230-d, and 230-f.
[0085] In some scenarios, when UE 115-a determines that the triggering condition is met, DCI 215 may indicate two trigger states, each associated with a CSI report configuration. In some scenarios, the two CSI report configurations may each indicate a different transmit power (e.g., via a different offset value, a partial power loss compensation value, or both) for transmitting an instance of CSI report 220. In a first example, UE 115-a may use transmit beam 205-a associated with a first Probe Reference Signal (SRS) resource set via PUSCH transmission 230 to transmit a first instance of CSI report 220. Additionally, UE 115-a may use transmit beam 205-b associated with a second SRS resource set via PUSCH transmission 230 to transmit a second instance of CSI report 220. Here, UE 115-a may use a first transmit power (e.g., indicated by a first trigger state) to transmit the first instance of CSI report 220 and a second transmit power (e.g., indicated by a second trigger state) to transmit the second instance of CSI report 220. In the second example, UE 115-a can use the same transmit beam 205 associated with a single SRS resource set to transmit two instances of CSI report 220 via PUSCH transmission 230. Here, UE 115-a can use a single transmit power (e.g., indicated by one of the triggered states) to transmit two instances of CSI report 220.
[0086] In one example, UE 115-a may determine that the triggering condition is met based on DCI 215 indicating a first SRS associated with the first PUSCH transmission 230 and a second SRS associated with the second PUSCH transmission 230. For example, DCI 215 may indicate that PUSCH transmissions 230-a, 230-c, and 230-e are associated with one SRS resource set, and PUSCH transmissions 230-b, 230-d, and 230-f are associated with another SRS source set. UE 115-a may then determine that the triggering condition is met and may transmit two instances of CSI report 220 within each cycle 225 using PUSCH transmissions 230 associated with different SRS resource sets. Here, UE 115-a may use different transmit beams 205 to transmit PUSCH transmissions 230 within each cycle 225. For example, UE 115-a may use transmit beam 205-a to transmit PUSCH transmissions 230 associated with the first SRS resource set. Additionally, UE115-a can use transmit beam 205-b to transmit PUSCH transmission 230 associated with the second SRS resource set.
[0087] In another example, UE 115-a may determine that the triggering condition is met based on DCI 215 indicating more than one repetition of PUSCH transmission 230. In some cases, DCI 215 may indicate more than two repetitions of PUSCH transmission 230 (e.g., within each cycle 225). Here, UE 115-a may still transmit two PUSCH transmissions 230 within each cycle. Additionally or alternatively, UE 115-a may determine that the triggering condition is met based on DCI 215 indicating a triggering state associated with a CSI reporting configuration indicating both first and second instances of CSI reports. That is, for each triggering state, RRC signaling 210 may additionally indicate whether the triggering state is associated with a single CSI reporting instance in each cycle 225 or with two CSI reporting instances in each cycle 225. In another example, UE 115-a may determine that the triggering condition is met based on a field (e.g., a single bit within DCI 215) included in DCI 215, which indicates whether the activated triggering state is associated with a single CSI report instance in each cycle 225 or with two CSI report instances in each cycle 225.
[0088] Figure 3A and 3B An example PUSCH transport configuration 300 supporting semi-persistent CSI reporting according to various aspects of this disclosure is described. For example, the PUSCH transport configuration 300 may be described as including two PUSCH transports 305 transmitted in each cycle 325 of a periodic CSI report. Additionally, each PUSCH transport 305 may include an instance of a CSI report 310. In some examples, the PUSCH transport configuration 300 may be implemented as described in reference... Figure 1 and 2 The description covers various aspects of wireless communication. For example, for a two-PUSCH transmission configuration 300, the base station can (e.g., via RRC signaling, via DCI) configure semi-persistent CSI reporting, including as referenced. Figure 1 and 2 Two instances of CSI report 310 within each period 325 of the described periodic CSI report.
[0089] In the example of PUSCH transmission configuration 300-a, the actual PUSCH transmissions 305-a, 305-b, and 305-d may be the same as the nominal PUSCH transmissions 305-a, 305-b, and 305-d. However, the actual PUSCH transmission 305-c may differ from the nominal PUSCH transmission 305-c. For example, the UE may determine that one or more symbols associated with PUSCH transmission 305-c are invalid. Here, the UE may suppress the transmission of PUSCH transmission 305-c within period 325-b. The UE may still transmit PUSCH transmission 305-d within period 325-b (e.g., even in cases where the actual transmission of another PUSCH transmission 305-c within period 325-b differs from the nominal transmission of PUSCH transmission 305-c).
[0090] In the example of PUSCH transmission configuration 300-b, the actual PUSCH transmissions 305-e, 305-f, and 305-h may be the same as the nominal PUSCH transmissions 305-e, 305-f, and 305-h. However, the actual PUSCH transmission 305-g may differ from the nominal PUSCH transmission 305-g. For example, the UE may determine that one or more symbols associated with PUSCH transmission 305-g are invalid. Here, the UE may suppress the transmission of PUSCH transmission 305-g during period 325-d. The UE may also suppress the transmission of PUSCH transmission 305-h during period 325-d, even if the actual transmission of PUSCH transmission 305-h is the same as the nominal transmission of PUSCH transmission 305-h. That is, when any of the actual PUSCH transmissions 305 differs from the nominal PUSCH transmission 305, the UE may not transmit any PUSCH transmission 305 during period 325.
[0091] Figure 4 An example of a semi-persistent reporting process flow 400 supporting CSI, based on various aspects of this disclosure, is explained. In some examples, process flow 400 may implement... Figure 1 To 3 in all aspects. For example, UE 115-b could be as follows regarding Figure 1 The example of UE 115 described in section 3. Additionally, base station 105-b can be as described regarding... Figure 1 Example of base station 105 as described in section 3.
[0092] At 405, base station 105-b can transmit RRC signaling to UE 115-b. For example, UE 115-b can receive RRC signaling indicating a set of trigger states, each trigger state being associated with a CSI report configuration.
[0093] At 410, base station 105-b may transmit a DCI to UE 115-b. For example, UE 115-b may receive this DCI, which activates periodic CSI reports transmitted via the uplink shared channel. In some cases, the DCI may activate the periodic CSI report by indicating a trigger state from a set of trigger states.
[0094] In 415, UE 115-b can identify a triggering condition that triggers the transmission of both the first instance and the second instance of the CSI report within the period of the periodic CSI report.
[0095] At 420, UE 115-b can determine that the trigger condition is met. In one example, UE 115-b can determine that the trigger condition is met based on both the DCI indicating a first SRS resource set associated with a first uplink shared channel transmission and a second SRS resource set associated with a second uplink shared channel transmission. In another example, UE 115-b can determine that the trigger condition is met based on the DCI indicating more than one repetition of an uplink shared channel transmission within the periodic CSI report period. In yet another example, UE 115-b can determine that the trigger condition is met based on a trigger state (e.g., indicated by the DCI) associated with a CSI report configuration indicating the transmission of both a first instance and a second instance of the CSI report within the periodic CSI report period. In another example, UE 115-b may determine that the triggering condition is met based on the value of a field within the DCI, which is configured to indicate the transmission of either the first instance and the second instance of the CSI report within the periodic CSI report period or the transmission of a single CSI report within the periodic CSI report period.
[0096] At 425, UE 115-b can, based on the satisfaction of the triggering condition, transmit a first instance of the CSI report via a first uplink shared channel and a second instance of the CSI report via a second uplink shared channel, both of which occur within the period of the periodic CSI report. In cases where the DCI indicates two SRS resource sets associated with the first and second uplink shared channel transmissions, UE 115-b can use a first transmit beam associated with the first SRS resource set to transmit the first instance of the CSI report via the first uplink shared channel. Additionally, UE 115-b can use a second transmit beam associated with the second SRS resource set to transmit the second instance of the CSI report via the second uplink shared channel.
[0097] Figure 5A block diagram 500 of a device 505 supporting semi-persistent reporting of CSI is shown according to various aspects of this disclosure. Device 505 may be an example of various aspects of UE 115 as described herein. Device 505 may include a receiver 510, a transmitter 515, and a communications manager 520. Device 505 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).
[0098] Receiver 510 may provide means for receiving information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to semi-persistent CSI reporting), user data, control information, or any combination thereof). The information may be transmitted to other components of device 505. Receiver 510 may utilize a single antenna or a collection of multiple antennas.
[0099] Transmitter 515 may provide means for transmitting signals generated by other components of device 505. For example, transmitter 515 may transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to semi-persistent CSI reporting), user data, control information, or any combination thereof. In some examples, transmitter 515 may be co-located with receiver 510 in a transceiver module. Transmitter 515 may utilize a single antenna or a collection of multiple antennas.
[0100] The communication manager 520, receiver 510, transmitter 515, or various combinations thereof, or various components thereof, may be examples of means for performing various aspects of semi-persistent reporting of CSI as described herein. For example, the communication manager 520, receiver 510, transmitter 515, or various combinations thereof, or components thereof, may support methods for performing one or more functions described herein.
[0101] In some examples, the communication manager 520, receiver 510, transmitter 515, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuitry system). This hardware may include a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, configured to serve as or otherwise support means for performing the functions described herein. In some examples, the processor and memory coupled to the processor may be configured to perform one or more functions described herein (e.g., by executing instructions stored in memory by the processor).
[0102] Additionally or alternatively, in some examples, the communication manager 520, receiver 510, transmitter 515, or various combinations or components thereof may be implemented by code executed by a processor (e.g., as communication management software or firmware). If implemented by code executed by a processor, the functionality of the communication manager 520, receiver 510, transmitter 515, or various combinations or components thereof may be performed by a general-purpose processor, DSP, central processing unit (CPU), ASIC, FPGA, or any combination of these or other programmable logic devices (e.g., means configured or otherwise supported for performing the functions described in this disclosure).
[0103] In some examples, the communication manager 520 may be configured to use or otherwise cooperate with the receiver 510, transmitter 515, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, the communication manager 520 may receive information from the receiver 510, send information to the transmitter 515, or be integrated with the receiver 510, transmitter 515, or both to receive information, transmit information, or perform various other operations described herein.
[0104] Communication manager 520 may support wireless communication at the UE according to the examples disclosed herein. For example, communication manager 520 may be configured or otherwise support means for receiving a DCI from a base station that activates periodic CSI reports transmitted via an uplink shared channel. Communication manager 520 may be configured or otherwise support means for identifying a trigger condition that triggers the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report. Communication manager 520 may be configured or otherwise support means for transmitting the first instance of the CSI report via a first uplink shared channel and the second instance of the CSI report via a second uplink shared channel based on the fulfillment of the trigger condition, both of which occur within the period of the periodic CSI report.
[0105] By including or configuring a communication manager 520 according to an example as described herein, device 505 (e.g., a processor that controls or otherwise couples to receiver 515, transmitter 520, communication manager 1020, or a combination thereof) can support techniques for improving communication reliability.
[0106] Figure 6A block diagram 600 of a device 605 supporting semi-persistent reporting of CSI is shown according to various aspects of this disclosure. Device 605 may be an example of aspects of device 505 or UE 115 as described herein. Device 605 may include a receiver 610, a transmitter 615, and a communications manager 620. Device 605 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).
[0107] Receiver 610 may provide means for receiving information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to semi-persistent CSI reporting), user data, control information, or any combination thereof). The information may be transmitted to other components of device 605. Receiver 610 may utilize a single antenna or a collection of multiple antennas.
[0108] Transmitter 615 may provide means for transmitting signals generated by other components of device 605. For example, transmitter 615 may transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to semi-persistent CSI reporting), user data, control information, or any combination thereof. In some examples, transmitter 615 may be co-located with receiver 610 in a transceiver module. Transmitter 615 may utilize a single antenna or a collection of multiple antennas.
[0109] Device 605 or its various components may be examples of means for performing various aspects of semi-persistent reporting of CSI as described herein. For example, communication manager 620 may include DCI receiver 625, trigger condition manager 630, CSI report transmitter 635, or any combination thereof. Communication manager 620 may be examples of various aspects of communication manager 520 as described herein. In some examples, communication manager 620 or its various components may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using receiver 610, transmitter 615, or both, or otherwise cooperating with receiver 610, transmitter 615, or both. For example, communication manager 620 may receive information from receiver 610, send information to transmitter 615, or be integrated in combination with receiver 610, transmitter 615, or both to receive information, transmit information, or perform various other operations described herein.
[0110] Communication manager 620 may support wireless communication at the UE according to the examples disclosed herein. DCI receiver 625 may be configured or otherwise supported for means of receiving DCI from a base station that activates periodic CSI reports transmitted via an uplink shared channel. Trigger condition manager 630 may be configured or otherwise supported for means of identifying a trigger condition that triggers the transmission of both a first instance and a second instance of the CSI report within the period of the periodic CSI report. CSI report transmitter 635 may be configured or otherwise supported for means of transmitting the first instance of the CSI report via a first uplink shared channel and the second instance of the CSI report via a second uplink shared channel based on the fulfillment of the trigger condition, both of which occur within the period of the periodic CSI report.
[0111] Figure 7 A block diagram 700 of a communication manager 720 supporting semi-persistent reporting of CSI according to various aspects of this disclosure is shown. The communication manager 720 may be an example of the communication manager 520, communication manager 620, or aspects thereof described herein. The communication manager 720 or its various components may be examples of means for performing various aspects of semi-persistent reporting of CSI as described herein. For example, the communication manager 720 may include a DCI receiver 725, a trigger condition manager 730, a CSI report transmitter 735, an RRC signaling receiver 740, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).
[0112] Communication manager 720 may support wireless communication at the UE according to the examples disclosed herein. DCI receiver 725 may be configured or otherwise supported for means of receiving DCI from a base station, which activates periodic CSI reports transmitted via an uplink shared channel. Trigger condition manager 730 may be configured or otherwise supported for means of identifying a trigger condition that triggers the transmission of both a first instance and a second instance of the CSI report within the period of the periodic CSI report. CSI report transmitter 735 may be configured or otherwise supported for means of transmitting the first instance of the CSI report via a first uplink shared channel and the second instance of the CSI report via a second uplink shared channel based on the fulfillment of the trigger condition, both of which occur within the period of the periodic CSI report.
[0113] In some examples, the trigger condition manager 730 may be configured or otherwise supported to determine, based on both the first SRS resource set associated with the first uplink shared channel transmission and the second SRS resource set associated with the second uplink shared channel transmission, that the trigger condition is satisfied.
[0114] In some examples, to support transmission, the CSI report transmitter 735 may be configured or otherwise supported to transmit a first instance of the CSI report via a first uplink shared channel using a first transmit beam associated with a first SRS resource set. In some examples, to support transmission, the CSI report transmitter 735 may be configured or otherwise supported to transmit a second instance of the CSI report via a second uplink shared channel using a second transmit beam associated with a second SRS resource set.
[0115] In some examples, the trigger condition manager 730 may be configured or otherwise supported to determine that the trigger condition is met based on more than one repetition of uplink shared channel transmission within the period of the periodic CSI report indicated by the DCI.
[0116] In some examples, the RRC signaling receiver 740 may be configured or otherwise support means for receiving RRC signaling from a base station that indicates a set of multiple trigger states, each trigger state being associated with a CSI report configuration, wherein the DCI activates the periodic CSI report by indicating one of the trigger states from the set of multiple trigger states.
[0117] In some examples, the trigger condition manager 730 may be configured or otherwise support means for determining whether a trigger condition is met based on a trigger state associated with a CSI report configuration that indicates the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report.
[0118] In some examples, the trigger condition manager 730 may be configured or otherwise supported to determine, based on the value of a field within the DCI, that the trigger condition is met, the field being configured to indicate the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report, or the transmission of a single CSI report within a period of the periodic CSI report.
[0119] In some examples, the CSI report transmitter 735 may be configured or otherwise supported to determine, based on the satisfaction of the triggering condition, two repetitions of PUSCH to be transmitted in each period of the periodic CSI report, the two repetitions including a first uplink shared channel transmission and a second uplink shared channel transmission.
[0120] In some examples, the configured number of repetitions of the PUSCH transmission within each period of the periodic CSI is one or more than two.
[0121] In some examples, the CSI report transmitter 735 may be configured or otherwise supported to include means for determining, after a period of the periodic CSI report, that a second CSI report should be transmitted via a third PUSCH transmission and a fourth PUSCH transmission during the second period of the periodic CSI report. In some examples, the CSI report transmitter 735 may be configured or otherwise supported to include means for identifying that the actual transmission of one of the PUSCH transmissions from the third or fourth PUSCH transmission is different from the nominal transmission of that PUSCH transmission. In some examples, the CSI report transmitter 735 may be configured or otherwise supported to include means for suppressing the transmission of that PUSCH transmission during the second period of the periodic CSI report based on the identification that the actual transmission is different from the nominal transmission.
[0122] In some examples, the CSI report transmitter 735 may be configured or otherwise support means for transmitting another PUSCH transmission within a second period of the periodic CSI report, based on the fact that the actual transmission from another PUSCH transmission, which is the same as the nominal transmission of the other PUSCH transmission, is from a third PUSCH transmission and a fourth PUSCH transmission, and that the other PUSCH transmission includes a second CSI report.
[0123] In some examples, the CSI report transmitter 735 may be configured or otherwise support means for suppressing the transmission of another PUSCH transmission based on the fact that the actual transmission of another PUSCH transmission from the third PUSCH transmission and the fourth PUSCH transmission is different from the nominal transmission of that other PUSCH transmission.
[0124] In some examples, the DCI activates the periodic CSI report based on an indication of a trigger state associated with a CSI report configuration indicating a first transmit power and a second transmit power, wherein a first instance of transmitting the CSI report and a second instance of transmitting the CSI report are based on at least one of the first transmit power or the second transmit power.
[0125] In some examples, to support transmission, the CSI report transmitter 735 may be configured or otherwise supported for means of transmitting a first instance of the CSI report via a first uplink shared channel using a first SRS resource set indicated by the DCI, based on a first transmit power. In some examples, to support transmission, the CSI report transmitter 735 may be configured or otherwise supported for transmitting a second instance of the CSI report via a second uplink shared channel using a second SRS resource set indicated by the DCI, based on a second transmit power.
[0126] In some examples, to support transmission, the CSI report transmitter 735 may be configured or otherwise supported for means of transmitting both a first instance of the CSI report and a second instance of the CSI report based on a single SRS resource set indicated by the DCI and according to a first transmit power, wherein both the first uplink shared channel transmission and the second uplink shared channel transmission use the single SRS resource set.
[0127] Figure 8 A diagram of a system 800 including device 805 supporting CSI semi-persistent reporting is shown according to various aspects of this disclosure. Device 805 may be an example of device 505, device 605, or UE 115 as described herein, or a component including device 705, device 805, or UE 115. Device 805 may wirelessly communicate with one or more base stations 105, UE 115, or any combination thereof. Device 805 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 820, an input / output (I / O) controller 810, a transceiver 815, an antenna 825, a memory 830, a code 835, and a processor 840. These components may be in electronic communication or otherwise coupled (e.g., operational ground, communication ground, functional ground, electronic ground, electrical ground) via one or more buses (e.g., bus 845).
[0128] I / O controller 810 manages the input and output signals of device 805. I / O controller 810 can also manage peripheral devices not integrated into device 805. In some cases, I / O controller 810 may represent a physical connection or port to an external peripheral device. In some cases, I / O controller 810 may utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Additionally or alternatively, I / O controller 810 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, I / O controller 810 may be implemented as part of a processor (such as processor 840). In some cases, a user may interact with device 805 via I / O controller 810 or via hardware components controlled by I / O controller 810.
[0129] In some cases, device 805 may include a single antenna 825. However, in other cases, device 805 may have more than one antenna 825, which may be capable of transmitting or receiving multiple wireless transmissions concurrently. Transceiver 815 may communicate bidirectionally via one or more antennas 825, wired or wireless links, as described herein. For example, transceiver 815 may represent a wireless transceiver and be capable of bidirectional communication with another wireless transceiver. Transceiver 815 may also include a modem for modulating packets and providing modulated packets to one or more antennas 825 for transmission, and for demodulating packets received from one or more antennas 825. Transceiver 815, or transceiver 815 and one or more antennas 825, may be examples of transmitter 515, transmitter 615, receiver 510, receiver 610, or any combination thereof or components thereof as described herein.
[0130] Memory 830 may include random access memory (RAM) and read-only memory (ROM). Memory 830 may store computer-readable, computer-executable code 835, including instructions that, when executed by processor 840, cause device 805 to perform the various functions described herein. Code 835 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 835 may not be directly executed by processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some cases, memory 830 may, in particular, include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.
[0131] Processor 840 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 840 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 840. Processor 840 may be configured to execute computer-readable instructions stored in memory (e.g., memory 830) to cause device 805 to perform various functions (e.g., functions or tasks supporting semi-persistent reporting of CSI). For example, device 805 or components thereof may include processor 840 and memory 830 coupled to processor 840, wherein processor 840 and memory 830 are configured to perform the various functions described herein.
[0132] The communication manager 820 may support wireless communication at the UE according to the examples disclosed herein. For example, the communication manager 820 may be configured or otherwise support means for receiving a DCI from a base station that activates periodic CSI reports transmitted via an uplink shared channel. The communication manager 820 may be configured or otherwise support means for identifying a trigger condition that triggers the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report. The communication manager 820 may be configured or otherwise support means for transmitting the first instance of the CSI report via a first uplink shared channel and the second instance of the CSI report via a second uplink shared channel based on the fulfillment of the trigger condition, both of which occur within the period of the periodic CSI report.
[0133] By including or configuring a communication manager 820 according to an example as described herein, device 805 can support techniques for improving communication reliability.
[0134] In some examples, the communication manager 820 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with transceiver 815, one or more antennas 825, or any combination thereof. Although the communication manager 820 is described as a separate component, in some examples, one or more functions described with reference to the communication manager 820 may be supported or performed by processor 840, memory 830, code 835, or any combination thereof. For example, code 835 may include instructions that can be executed by processor 840 to cause device 805 to perform various aspects of the semi-persistent scheduling of CSI as described herein, or the processor 840 and memory 830 may be otherwise configured to perform or support such operations.
[0135] Figure 9 A block diagram 900 of a device 905 supporting semi-persistent reporting of CSI is shown according to various aspects of this disclosure. Device 905 may be an example of various aspects of base station 105 as described herein. Device 905 may include a receiver 910, a transmitter 915, and a communications manager 920. Device 905 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).
[0136] Receiver 910 may provide means for receiving information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to semi-persistent CSI reporting), user data, control information, or any combination thereof). The information may be transmitted to other components of device 905. Receiver 910 may utilize a single antenna or a collection of multiple antennas.
[0137] Transmitter 915 may provide means for transmitting signals generated by other components of device 905. For example, transmitter 915 may transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to semi-persistent CSI reporting), user data, control information, or any combination thereof. In some examples, transmitter 915 may be co-located with receiver 910 in a transceiver module. Transmitter 915 may utilize a single antenna or a collection of multiple antennas.
[0138] The communication manager 920, receiver 910, transmitter 915, or various combinations thereof, or various components thereof, may be examples of means for performing various aspects of semi-persistent reporting of CSI as described herein. For example, the communication manager 920, receiver 910, transmitter 915, or various combinations thereof, or components thereof, may support methods for performing one or more functions described herein.
[0139] In some examples, the communication manager 920, receiver 910, transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuitry system). The hardware may include processors, DSPs, ASICs, FPGAs, or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof, configured or otherwise supported for performing the functions described herein. In some examples, the processor and memory coupled to the processor may be configured to perform one or more functions described herein (e.g., by executing instructions stored in memory by the processor).
[0140] Additionally or alternatively, in some examples, the communication manager 920, receiver 910, transmitter 915, or various combinations or components thereof may be implemented by code executed by a processor (e.g., as communication management software or firmware). If implemented by code executed by a processor, the functionality of the communication manager 920, receiver 910, transmitter 915, or various combinations or components thereof may be performed by a general-purpose processor, DSP, CPU, ASIC, FPGA, or any combination of these or other programmable logic devices (e.g., means configured or otherwise supported for performing the functions described in this disclosure).
[0141] In some examples, the communication manager 920 may be configured to use or otherwise cooperate with the receiver 910, transmitter 915, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, the communication manager 920 may receive information from the receiver 910, send information to the transmitter 915, or be integrated with the receiver 910, transmitter 915, or both to receive information, transmit information, or perform various other operations described herein.
[0142] The communication manager 920 may support wireless communication at a base station according to the examples disclosed herein. For example, the communication manager 920 may be configured or otherwise support means for transmitting a DCI to a UE, the DCI activating periodic CSI reports transmitted via an uplink shared channel. The communication manager 920 may be configured or otherwise support means for indicating a trigger condition that triggers the UE to transmit both a first instance and a second instance of the CSI report within the period of the periodic CSI report. The communication manager 920 may be configured or otherwise support means for receiving the first instance of the CSI report transmitted via a first uplink shared channel and the second instance of the CSI report transmitted via a second uplink shared channel, both based on the satisfaction of the trigger condition, within the period of the periodic CSI report.
[0143] By including or configuring a communication manager 920 according to an example as described herein, device 905 (e.g., a processor that controls or otherwise couples to receiver 910, transmitter 915, communication manager 920, or a combination thereof) can support techniques for improving communication reliability.
[0144] Figure 10 A block diagram 1000 of a device 1005 supporting semi-persistent reporting of CSI is shown according to various aspects of this disclosure. Device 1005 may be an example of various aspects of device 905 or base station 105 as described herein. Device 1005 may include a receiver 1010, a transmitter 1015, and a communications manager 1020. Device 1005 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).
[0145] Receiver 1010 may provide means for receiving information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to semi-persistent CSI reporting), user data, control information, or any combination thereof). The information may be transmitted to other components of device 1005. Receiver 1010 may utilize a single antenna or a collection of multiple antennas.
[0146] Transmitter 1015 may provide means for transmitting signals generated by other components of device 1005. For example, transmitter 1015 may transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to semi-persistent CSI reporting), user data, control information, or any combination thereof. In some examples, transmitter 1015 may be co-located with receiver 1010 in a transceiver module. Transmitter 1015 may utilize a single antenna or a collection of multiple antennas.
[0147] Device 1005 or its various components may be examples of means for performing various aspects of semi-persistent reporting of CSI as described herein. For example, communication manager 1020 may include DCI transmitter 1025, trigger condition component 1030, CSI report receiver 1035, or any combination thereof. Communication manager 1020 may be examples of various aspects of communication manager 920 as described herein. In some examples, communication manager 1020 or its various components may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using receiver 1010, transmitter 1015, or both, or otherwise in cooperation with receiver 1010, transmitter 1015, or both. For example, communication manager 1020 may receive information from receiver 1010, send information to transmitter 1015, or be integrated with receiver 1010, transmitter 1015, or both to receive information, transmit information, or perform various other operations described herein.
[0148] Communication manager 1020 may support wireless communication at a base station according to the examples disclosed herein. DCI transmitter 1025 may be configured or otherwise supported to support means for transmitting DCI to a UE, which activates periodic CSI reports transmitted via an uplink shared channel. Trigger condition component 1030 may be configured or otherwise supported to support means for indicating a trigger condition that triggers the UE to transmit both a first instance and a second instance of the CSI report within the period of the periodic CSI report. CSI report receiver 1035 may be configured or otherwise supported to receive the first instance of the CSI report transmitted via a first uplink shared channel and the second instance of the CSI report transmitted via a second uplink shared channel based on the satisfaction of the trigger condition, both of which occur within the period of the periodic CSI report.
[0149] Figure 11 A block diagram 1100 of a communication manager 1120 supporting semi-persistent reporting of CSI according to various aspects of this disclosure is shown. The communication manager 1120 may be an example of the communication manager 920, communication manager 1020, or aspects thereof described herein. The communication manager 1120 or its various components may be examples of means for performing various aspects of semi-persistent reporting of CSI as described herein. For example, the communication manager 1120 may include a DCI transmitter 1125, a trigger condition component 1130, a CSI report receiver 1135, an RRC signaling transmitter 1140, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).
[0150] Communication manager 1120 may support wireless communication at a base station according to the examples disclosed herein. DCI transmitter 1125 may be configured or otherwise supported to support means for transmitting DCI to a UE, which activates periodic CSI reports transmitted via an uplink shared channel. Trigger condition component 1130 may be configured or otherwise supported to support means for indicating a trigger condition that triggers the UE to transmit both a first instance and a second instance of the CSI report within the period of the periodic CSI report. CSI report receiver 1135 may be configured or otherwise supported to support means for receiving the first instance of the CSI report transmitted via a first uplink shared channel and the second instance of the CSI report transmitted via a second uplink shared channel based on the satisfaction of the trigger condition, both of which occur within the period of the periodic CSI report.
[0151] In some examples, the triggering condition is satisfied based on both the DCI indication of the first SRS resource set associated with the first uplink shared channel transmission and the second SRS resource set associated with the second uplink shared channel transmission.
[0152] In some examples, a first instance of the CSI report received via a first uplink shared channel is associated with a first transmit beam corresponding to a first SRS resource set. In some examples, a second instance of the CSI report received via a second uplink shared channel is associated with a second transmit beam corresponding to a second SRS resource set.
[0153] In some examples, the triggering condition is met based on more than one repetition of uplink shared channel transmission within the period indicated by the DCI indicative of the periodic CSI report.
[0154] In some examples, the RRC signaling transmitter 1140 may be configured or otherwise support means for transmitting RRC signaling to the UE indicating a set of multiple trigger states, each trigger state being associated with a CSI report configuration, wherein the DCI activates the periodic CSI report by indicating one of the trigger states from the set of multiple trigger states.
[0155] In some examples, the triggering condition is met based on a triggering state associated with a CSI report configuration that instructs the UE to transmit both a first instance and a second instance of the CSI report within the periodic CSI report period.
[0156] In some examples, the triggering condition is met based on the value of a field within the DCI, which is configured to instruct the UE to transmit both a first instance and a second instance of the CSI report within the periodic CSI report period, or to instruct the UE to transmit a single CSI report within the periodic CSI report period.
[0157] In some examples, the DCI activates the periodic CSI report based on an indication of a trigger state associated with a CSI report configuration indicating a first transmit power and a second transmit power, wherein a first instance receiving the CSI report and a second instance receiving the CSI report are based on at least one of the first transmit power or the second transmit power.
[0158] In some examples, to support reception, the CSI report receiver 1135 may be configured or otherwise supported for receiving a first instance of the CSI report via a first uplink shared channel having a first transmit power and associated with a first SRS resource set indicated by the DCI. In some examples, to support reception, the CSI report receiver 1135 may be configured or otherwise supported for receiving a second instance of the CSI report via a second uplink shared channel having a second transmit power and associated with a second SRS resource set indicated by the DCI.
[0159] In some examples, to support reception, the CSI report receiver 1135 may be configured or otherwise supported for receiving both a first uplink shared channel transmission and a second uplink shared channel transmission using a single SRS resource set based on the DCI indication, wherein both the first uplink shared channel transmission and the second uplink shared channel transmission have a first transmit power.
[0160] Figure 12A diagram of a system 1200 including device 1205 supporting CSI semi-persistent reporting is shown according to various aspects of this disclosure. Device 1205 may be an example of device 905, device 1005, or base station 105 as described herein, or a component including such devices. Device 1205 may wirelessly communicate with one or more base stations 105, UE 115, or any combination thereof. Device 1205 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, such as a communication manager 1220, a network communication manager 1210, a transceiver 1215, an antenna 1225, a memory 1230, a code 1235, a processor 1240, and an inter-station communication manager 1245. These components may be in electronic communication or otherwise coupled (e.g., operational ground, communication ground, functional ground, electronic ground, electrical ground) via one or more buses (e.g., bus 1250).
[0161] The network communication manager 1210 can manage communication with the core network 130 (e.g., via one or more wired backhaul links). For example, the network communication manager 1210 can manage the delivery of data communication to client devices (such as one or more UEs 115).
[0162] In some cases, device 1205 may include a single antenna 1225. However, in other cases, device 1205 may have more than one antenna 1225, which may be capable of transmitting or receiving multiple wireless transmissions concurrently. Transceiver 1215 may communicate bidirectionally via one or more antennas 1225, wired or wireless links, as described herein. For example, transceiver 1215 may represent a wireless transceiver and be capable of bidirectional communication with another wireless transceiver. Transceiver 1215 may also include a modem for modulating packets and providing modulated packets to one or more antennas 1225 for transmission, and for demodulating packets received from one or more antennas 1225. Transceiver 1215 or transceiver 1215 and one or more antennas 1225 may be examples of transmitter 915, transmitter 1015, receiver 910, receiver 1010 or any combination thereof or components thereof as described herein.
[0163] Memory 1230 may include RAM and ROM. Memory 1230 may store computer-readable, computer-executable code 1235, including instructions that, when executed by processor 1240, cause device 1205 to perform the various functions described herein. Code 1235 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 1235 may not be directly executable by processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some cases, memory 1230 may, in particular, include a BIOS that controls basic hardware or software operations, such as interaction with peripheral components or devices.
[0164] Processor 1240 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1240 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 1240. Processor 1240 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1230) to cause device 1205 to perform various functions (e.g., functions or tasks supporting semi-persistent reporting of CSI). For example, device 1205 or components thereof may include processor 1240 and memory 1230 coupled to processor 1240, wherein processor 1240 and memory 1230 are configured to perform the various functions described herein.
[0165] Inter-site communication manager 1245 manages communication with other base stations 105 and may include a controller or scheduler for cooperating with other base stations 105 to control communication with UE 115. For example, inter-site communication manager 1245 may coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, inter-site communication manager 1245 may provide an X2 interface within LTE / LTE-A wireless communication network technology to facilitate communication between base stations 105.
[0166] Communication manager 1220 may support wireless communication at a base station according to the examples disclosed herein. For example, communication manager 1220 may be configured or otherwise support means for transmitting a DCI to a UE, the DCI activating periodic CSI reports transmitted via an uplink shared channel. Communication manager 1220 may be configured or otherwise support means for indicating a trigger condition that triggers the UE to transmit both a first instance and a second instance of the CSI report within the period of the periodic CSI report. Communication manager 1220 may be configured or otherwise support means for receiving the first instance of the CSI report via a first uplink shared channel and the second instance of the CSI report via a second uplink shared channel, based on the satisfaction of the trigger condition, both of which occur within the period of the periodic CSI report.
[0167] By including or configuring a communication manager 1220 according to an example as described herein, device 1205 can support techniques for improving communication reliability.
[0168] In some examples, the communication manager 1220 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with transceiver 1215, one or more antennas 1225, or any combination thereof. Although the communication manager 1220 is described as a separate component, in some examples, one or more functions described with reference to the communication manager 1220 may be supported or performed by processor 1240, memory 1230, code 1235, or any combination thereof. For example, code 1235 may include instructions that can be executed by processor 1240 to cause device 1205 to perform various aspects of the semi-persistent scheduling of CSI as described herein, or the processor 1240 and memory 1230 may be otherwise configured to perform or support such operations.
[0169] Figure 13 A flowchart illustrating a method 1300 for supporting semi-persistent reporting of CSI according to various aspects of this disclosure is shown. Operation of method 1300 may be implemented by a UE or its components as described herein. For example, operation of method 1300 may be implemented by, as referred to... Figures 1 to 8 The UE 115 described herein is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described function.
[0170] In 1305, the method may include receiving a DCI from a base station, the DCI activating periodic CSI reports transmitted via the uplink shared channel. Operation of 1305 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1305 may be provided as referenced... Figure 7 The DCI receiver 725 described herein is used to perform this action.
[0171] In 1310, the method may include identifying a triggering condition that triggers the transmission of both a first instance of the CSI report and a second instance of the CSI report within a period of the periodic CSI report. The operation of 1310 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1310 may be provided by reference to... Figure 7 The described trigger condition manager 730 is used to execute.
[0172] In 1315, the method may include, based on the satisfaction of the triggering condition, transmitting a first instance of the CSI report via a first uplink shared channel and a second instance of the CSI report via a second uplink shared channel, both of which occur within the period of the periodic CSI report. The operation of 1315 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1315 may be as described in reference to... Figure 7 The described CSI report is executed by transmitter 735.
[0173] Figure 14 A flowchart illustrating a method 1400 for supporting semi-persistent reporting of CSI according to various aspects of this disclosure is shown. Operation of method 1400 may be implemented by a UE or its components as described herein. For example, operation of method 1400 may be performed by, as referred to... Figures 1 to 8 The UE 115 described herein is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described function.
[0174] At 1405, the method may include receiving a DCI from a base station, the DCI activating periodic CSI reports transmitted via the uplink shared channel. Operation of 1405 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1405 may be provided as referenced... Figure 7 The DCI receiver 725 described herein is used to perform this action.
[0175] In 1410, the method may include identifying a triggering condition that triggers the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report. The operation of 1410 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1410 may be provided by reference to... Figure 7 The described trigger condition manager 730 is used to execute.
[0176] At 1415, the method may include determining that the triggering condition is met based on both the DCI indication of a first SRS resource set associated with a first uplink shared channel transmission and a second SRS resource set associated with a second uplink shared channel transmission. The operation of 1415 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1415 may be determined by reference to... Figure 7 The described trigger condition manager 730 is used to execute.
[0177] At 1420, the method may include, based on the satisfaction of the triggering condition, transmitting a first instance of the CSI report via a first uplink shared channel and a second instance of the CSI report via a second uplink shared channel, both of which occur within the period of the periodic CSI report. The operation of 1420 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1420 may be as described in reference to... Figure 7 The described CSI report is executed by transmitter 735.
[0178] Figure 15 A flowchart illustrating a method 1500 for supporting semi-persistent reporting of CSI according to various aspects of this disclosure is shown. Operation of method 1500 may be implemented by a UE or its components as described herein. For example, operation of method 1500 may be performed by, as referred to... Figures 1 to 8 The UE 115 described herein is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described function.
[0179] In step 1505, the method may include receiving a DCI from a base station, the DCI activating periodic CSI reports transmitted via the uplink shared channel. Operation of step 1505 may be performed according to the examples disclosed herein. In some examples, aspects of operation of step 1505 may be provided by reference to... Figure 7 The DCI receiver 725 described herein is used to perform this action.
[0180] In 1510, the method may include identifying a triggering condition that triggers the transmission of both a first instance of the CSI report and a second instance of the CSI report within a period of the periodic CSI report. The operation of 1510 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1510 may be as described in reference... Figure 7 The described trigger condition manager 730 is used to execute.
[0181] In 1515, the method may include determining that the triggering condition is met based on more than one repetition of uplink shared channel transmissions within the period of the periodic CSI report indicated by the DCI. The operation of 1515 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1515 may be as described in reference... Figure 7 The described trigger condition manager 730 is used to execute.
[0182] In 1520, the method may include, based on the satisfaction of the triggering condition, transmitting a first instance of the CSI report via a first uplink shared channel and a second instance of the CSI report via a second uplink shared channel, both of which occur within the period of the periodic CSI report. The operation of 1520 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1520 may be as described in reference to... Figure 7 The described CSI report is executed by transmitter 735.
[0183] Figure 16 A flowchart illustrating a method 1600 for supporting semi-persistent reporting of CSI according to various aspects of this disclosure is shown. Operation of method 1600 may be implemented by a UE or its components as described herein. For example, operation of method 1600 may be performed by, as referred to... Figures 1 to 8 The UE 115 described herein is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described function.
[0184] In 1605, the method may include receiving from a base station RRC signaling indicating a set of multiple trigger states, each trigger state associated with a CSI reporting configuration, wherein the DCI activates the periodic CSI reporting by indicating one trigger state from the set of multiple trigger states. Operation of 1605 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1605 may be provided as referenced... Figure 7 The RRC signaling receiver 740 described herein is used to perform this action.
[0185] In 1610, the method may include receiving a DCI from a base station, the DCI activating periodic CSI reports transmitted via the uplink shared channel. Operation of 1610 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1610 may be provided by reference to... Figure 7 The DCI receiver 725 described herein is used to perform this action.
[0186] In 1615, the method may include identifying a triggering condition that triggers the transmission of both a first instance of the CSI report and a second instance of the CSI report within a period of the periodic CSI report. The operation of 1615 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1615 may be provided by reference to... Figure 7 The described trigger condition manager 730 is used to execute.
[0187] In 1620, the method may include determining that a trigger condition is met based on a trigger state associated with a CSI reporting configuration, the CSI reporting configuration indicating the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report. The operation of 1620 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1620 may be provided as referenced... Figure 7 The described trigger condition manager 730 is used to execute.
[0188] In 1625, the method may include, based on the satisfaction of the triggering condition, transmitting a first instance of the CSI report via a first uplink shared channel and a second instance of the CSI report via a second uplink shared channel, both of which occur within the period of the periodic CSI report. The operation of 1625 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1625 may be as described in reference to... Figure 7 The described CSI report is executed by transmitter 735.
[0189] Figure 17 A flowchart illustrating a method 1700 for supporting semi-persistent reporting of CSI according to various aspects of this disclosure is shown. Operation of method 1700 may be implemented by a UE or its components as described herein. For example, operation of method 1700 may be implemented by, as referred to Figures 1 to 8 The UE 115 described herein is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described function.
[0190] In 1705, the method may include receiving a DCI from a base station, the DCI activating periodic CSI reports transmitted via the uplink shared channel. Operation of 1705 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1705 may be provided as referenced... Figure 7 The DCI receiver 725 described herein is used to perform this action.
[0191] In 1710, the method may include identifying a triggering condition that triggers the transmission of both a first instance of the CSI report and a second instance of the CSI report within a period of the periodic CSI report. The operation of 1710 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1710 may be provided by reference to... Figure 7 The described trigger condition manager 730 is used to execute.
[0192] In 1715, the method may include determining that the triggering condition is met based on the value of a field within the DCI, the field being configured to indicate the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report, or the transmission of a single CSI report within a period of the periodic CSI report. Operation of 1715 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1715 may be provided as referenced... Figure 7 The described trigger condition manager 730 is used to execute.
[0193] In 1720, the method may include, based on the satisfaction of the triggering condition, transmitting a first instance of the CSI report via a first uplink shared channel and a second instance of the CSI report via a second uplink shared channel, both of which occur within the period of the periodic CSI report. The operation of 1720 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1720 may be provided as referenced... Figure 7 The described CSI report is executed by transmitter 735.
[0194] Figure 18 A flowchart illustrating a method 1800 for supporting semi-persistent reporting of CSI according to various aspects of this disclosure is shown. Operation of method 1800 may be implemented by a base station or its components as described herein. For example, operation of method 1800 may be implemented by, as referred to... Figures 1 to 4 and Figures 9 to 12 The described base station 105 performs this function. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the described function. Alternatively or additionally, the base station may use dedicated hardware to perform aspects of the described function.
[0195] At 1805, the method may include transmitting a DCI to the UE, which activates periodic CSI reports transmitted via the uplink shared channel. Operation of 1805 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1805 may be provided by reference to... Figure 11 The described DCI transmitter 1125 is used to perform this.
[0196] In 1810, the method may include indicating a triggering condition that triggers the UE to transmit both a first instance of the CSI report and a second instance of the CSI report within the period of the periodic CSI report. Operation of 1810 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1810 may be provided by reference to... Figure 11 The described trigger condition component 1130 is executed.
[0197] In 1815, the method may include, based on the satisfaction of the triggering condition, receiving a first instance of the CSI report via a first uplink shared channel transmission and a second instance of receiving the CSI report via a second uplink shared channel transmission, both of which occur within the period of the periodic CSI report. The operation of 1815 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1815 may be as described in reference to... Figure 11 The CSI report receiver 1135 described herein is used to perform this action.
[0198] Figure 19 A flowchart illustrating a method 1900 for supporting semi-persistent reporting of CSI according to various aspects of this disclosure is shown. Operation of method 1900 may be implemented by a base station or its components as described herein. For example, operation of method 1900 may be implemented by, as referred to Figures 1 to 4 and Figures 9 to 12 The described base station 105 performs this function. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the described function. Alternatively or additionally, the base station may use dedicated hardware to perform aspects of the described function.
[0199] In 1905, the method may include transmitting RRC signaling to the UE indicating a set of multiple trigger states, each trigger state associated with a CSI reporting configuration, wherein the DCI activates the periodic CSI reporting by indicating one trigger state from the set of multiple trigger states. Operation of 1905 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1905 may be provided as referenced... Figure 11 The RRC signaling transmitter 1140 described herein is used to execute this.
[0200] In 1910, the method may include transmitting a DCI to the UE, which activates periodic CSI reports transmitted via the uplink shared channel. Operation of 1910 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1910 may be provided by reference to... Figure 11 The described DCI transmitter 1125 is used to perform this.
[0201] In 1915, the method may include indicating a triggering condition that triggers the UE to transmit both a first instance of a CSI report and a second instance of the CSI report within the period of the periodic CSI report. Operation of 1915 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1915 may be provided as referenced... Figure 11 The described trigger condition component 1130 is executed.
[0202] In 1920, the method may include receiving a first instance of the CSI report via a first uplink shared channel transmission and a second instance of receiving the CSI report via a second uplink shared channel transmission, both based on the satisfaction of the triggering condition, wherein both the first and second uplink shared channel transmissions occur within the period of the periodic CSI report. The operation of 1920 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1920 may be as described in reference to... Figure 11 The CSI report receiver 1135 described herein is used to perform this action.
[0203] Aspect 1: A method for wireless communication at a UE, comprising: receiving a DCI from a base station, the DCI activating a periodic CSI report transmitted via an uplink shared channel; identifying a trigger condition that triggers the transmission of both a first instance of the CSI report and a second instance of the CSI report within a period of the periodic CSI report; and transmitting the first instance of the CSI report via a first uplink shared channel and the second instance of the CSI report via a second uplink shared channel, both based at least in part on the satisfaction of the trigger condition, wherein the first uplink shared channel transmission and the second uplink shared channel transmission are both within the period of the periodic CSI report.
[0204] Aspect 2: The method of aspect 1 further includes: determining, at least in part, that the triggering condition is met based on both the DCI indication of a first SRS resource set associated with a first uplink shared channel transmission and a second SRS resource set associated with a second uplink shared channel transmission.
[0205] Aspect 3: The method of aspect 2, wherein the transmission includes: transmitting a first instance of the CSI report via a first uplink shared channel using a first transmit beam associated with a first SRS resource set; and transmitting a second instance of the CSI report via a second uplink shared channel using a second transmit beam associated with a second SRS resource set.
[0206] Aspect 4: The method of any of Aspects 1 to 3 further includes: determining that the triggering condition is met based at least in part on more than one repetition of uplink shared channel transmission within the period of the periodic CSI report indicated by the DCI.
[0207] Aspect 5: The method of any of Aspects 1 to 4 further includes: receiving from the base station RRC signaling indicating a plurality of trigger states, each trigger state being associated with a CSI reporting configuration, wherein the DCI activates the periodic CSI reporting by indicating one of the plurality of trigger states.
[0208] Aspect 6: The method of aspect 5 further includes: determining, at least in part, based on the association of the triggering state with a CSI reporting configuration, the CSI reporting configuration indicating the transmission of both a first instance of the CSI report and a second instance of the CSI report within a period of the periodic CSI report.
[0209] Aspect 7: The method of any of Aspects 1 to 6 further includes: determining, at least in part, based on the value of a field within the DCI, wherein the trigger condition is met, the field being configured to indicate the transmission of both a first instance and a second instance of the CSI report within a period of the periodic CSI report, or the transmission of a single CSI report within a period of the periodic CSI report.
[0210] Aspect 8: The method of any of Aspects 1 to 7 further includes: determining, at least in part, based on the satisfaction of the triggering condition, two repetitions of PUSCH to be transmitted in each period of the periodic CSI report, the two repetitions including a first uplink shared channel transmission and a second uplink shared channel transmission.
[0211] Aspect 9: The method of aspect 8, wherein the configured number of repetitions of the PUSCH transmission in each period of the periodic CSI is one or more than two.
[0212] Aspect 10: The method of any of Aspects 1 to 9 further includes: after a period of the periodic CSI report, determining that a second CSI report is to be transmitted via a third PUSCH transmission and a fourth PUSCH transmission during a second period of the periodic CSI report; identifying that the actual transmission of one of the PUSCH transmissions from the third PUSCH transmission or the fourth PUSCH transmission is different from the nominal transmission of the one PUSCH transmission; and suppressing the transmission of the one PUSCH transmission during the second period of the periodic CSI report, at least in part, based on the identification that the actual transmission is different from the nominal transmission.
[0213] Aspect 11: The method of aspect 10 further includes: transmitting the other PUSCH transmission during a second period of the periodic CSI report, based at least in part on the fact that the actual transmission of the other PUSCH transmission from the third PUSCH transmission and the fourth PUSCH transmission is the same as the nominal transmission of the other PUSCH transmission, the other PUSCH transmission including the second CSI report.
[0214] Aspect 12: The method of any of Aspects 10 to 11 further includes: suppressing the transmission of the other PUSCH transmission at least in part based on the fact that the actual transmission of the other PUSCH transmission from the third PUSCH transmission and the fourth PUSCH transmission is different from the nominal transmission of the other PUSCH transmission.
[0215] Aspect 13: The method of any of Aspects 1 to 12, wherein the DCI activates the periodic CSI report at least in part based on an indication of a trigger state associated with a CSI report configuration, the CSI report configuration indicating a first transmit power and a second transmit power, wherein the transmission of a first instance of the CSI report and a second instance of the CSI report are at least in part based on at least one of the first transmit power or the second transmit power.
[0216] Aspect 14: The method of aspect 13, wherein the transmission includes: transmitting a first instance of the CSI report via a first uplink shared channel using a first SRS resource set indicated by the DCI, based on a first transmit power; and transmitting a second instance of the CSI report via a second uplink shared channel using a second SRS resource set indicated by the DCI, based on a second transmit power.
[0217] Aspect 15: The method of any of Aspects 13 to 14, wherein the transmission comprises: transmitting both a first instance of the CSI report and a second instance of the CSI report according to a first transmit power based at least in part on a single SRS resource set indicated by the DCI, wherein both the first uplink shared channel transmission and the second uplink shared channel transmission use the single SRS resource set.
[0218] Aspect 16: A method for wireless communication at a base station, comprising: transmitting a DCI to a UE, the DCI activating a periodic CSI report transmitted via an uplink shared channel; indicating a triggering condition that triggers the UE to transmit both a first instance of the CSI report and a second instance of the CSI report within a period of the periodic CSI report; and receiving the first instance of the CSI report via a first uplink shared channel and receiving the second instance of the CSI report via a second uplink shared channel, both based at least in part on the satisfaction of the triggering condition, wherein the first uplink shared channel transmission and the second uplink shared channel transmission are both within the period of the periodic CSI report.
[0219] Aspect 17: The method of aspect 16, wherein the triggering condition is satisfied at least in part based on both the DCI indication of the first SRS resource set associated with the first uplink shared channel transmission and the second SRS resource set associated with the second uplink shared channel transmission.
[0220] Aspect 18: The method of aspect 17, wherein a first instance of the CSI report received via a first uplink shared channel is associated with a first transmit beam corresponding to a first SRS resource set; and a second instance of the CSI report received via a second uplink shared channel is associated with a second transmit beam corresponding to a second SRS resource set.
[0221] Aspect 19: The method of any of Aspects 16 to 18, wherein the triggering condition is satisfied at least in part based on more than one repetition of uplink shared channel transmission within the period indicated by the DCI for the periodic CSI report.
[0222] Aspect 20: The method of any of Aspects 16 to 19 further includes: transmitting to the UE RRC signaling indicating a plurality of trigger states, each trigger state being associated with a CSI reporting configuration, wherein the DCI activates the periodic CSI reporting by indicating one of the plurality of trigger states.
[0223] Aspect 21: The method of aspect 20, wherein the triggering condition is satisfied at least in part based on the one triggering state associated with a CSI report configuration that instructs the UE to transmit both a first instance of the CSI report and a second instance of the CSI report within the period of the periodic CSI report.
[0224] Aspect 22: The method of any of Aspects 16 to 21, wherein the triggering condition is satisfied at least in part based on the value of a field within the DCI, the field being configured to instruct the UE to transmit both a first instance of the CSI report and a second instance of the CSI report within the period of the periodic CSI report, or to instruct the UE to transmit a single CSI report within the period of the periodic CSI report.
[0225] Aspect 23: The method of any of Aspects 16 to 22, wherein the DCI activates the periodic CSI report at least in part based on an indication of a trigger state associated with a CSI report configuration, the CSI report configuration indicating a first transmit power and a second transmit power, wherein a first instance of receiving the CSI report and a second instance of receiving the CSI report are at least in part based on at least one of the first transmit power or the second transmit power.
[0226] Aspect 24: The method of aspect 23, wherein the receiving includes: receiving a first instance of the CSI report via a first uplink shared channel transmission having a first transmit power and associated with a first SRS resource set indicated by the DCI; and receiving a second instance of the CSI report via a second uplink shared channel transmission having a second transmit power and associated with a second SRS resource set indicated by the DCI.
[0227] Aspect 25: A method of any of Aspects 23 to 24, wherein the receiving includes: using the single SRS resource set, at least in part, based on the DCI indicating a single SRS resource set, to receive both a first uplink shared channel transmission and a second uplink shared channel transmission, wherein both the first uplink shared channel transmission and the second uplink shared channel transmission have a first transmit power.
[0228] Aspect 26: An apparatus for wireless communication at a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory, which can be executed by the processor to cause the apparatus to perform a method as described in any of Aspects 1 to 15.
[0229] Aspect 27: An apparatus for wireless communication at a UE, comprising at least one means for performing a method as described in any of Aspects 1 to 15.
[0230] Aspect 28: A non-transient computer-readable medium storing code for wireless communication at a UE, the code including instructions executable by a processor to perform methods as described in any of Aspects 1 to 15.
[0231] Aspect 29: An apparatus for wireless communication at a base station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in any of Aspects 16 to 25.
[0232] Aspect 30: An apparatus for wireless communication at a base station, comprising at least one means for performing a method as described in any of aspects 16 to 25.
[0233] Aspect 31: A non-transient computer-readable medium storing code for wireless communication at a base station, the code including instructions executable by a processor to perform methods as described in any of Aspects 16 to 25.
[0234] It should be noted that the methods described in this paper describe possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are also possible. Furthermore, aspects from two or more methods can be combined.
[0235] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein can also be applied to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described can be applied to a variety of other wireless communication systems, such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.
[0236] The information and signals described herein can be represented using any of a wide variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or light particles, or any combination thereof.
[0237] The various illustrative boxes and components described herein can be implemented or executed using a general-purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but in alternatives, the processor may be any processor, controller, microcontroller, or state machine. The 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 working in conjunction with a DSP core, or any other such configuration).
[0238] 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 or transmitted as one or more instructions or code on a computer-readable medium. Other examples and implementations fall within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Features implementing the functions may also be physically located in various locations, including being distributed such that different parts of the function are implemented at different physical locations.
[0239] Computer-readable media includes both non-transitory computer storage media and communication media, encompassing any medium that facilitates the transfer of a computer program from one location to another. Non-transitory storage media can be any available medium accessible to a general-purpose or special-purpose computer. By way of example and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code in the form of instructions or data structures and is accessible to a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Similarly, any connection is also legitimately 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 such coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable media. As used in this article, disk and disc include CDs, laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs, where disks often magnetically reproduce data while discs optically reproduce data using lasers. Combinations of these media are also included within the scope of computer-readable media.
[0240] As used herein (including in the claims), the word "or" in an enumeration of items (e.g., an enumeration of items accompanied by phrases such as "at least one of" or "one or more of") indicates an inclusive enumeration, such that an enumeration of at least one of, for example, 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). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".
[0241] In the accompanying drawings, similar components or features may have the same reference numerals. Furthermore, components of the same type may be distinguished by a dash following the reference numeral and a second reference numeral used to differentiate between similar components. If only the first reference numeral is used in the description, the description may apply to any of the similar components having the same first reference numeral, regardless of the second reference numeral or other subsequent reference numerals.
[0242] The descriptions herein, illustrated with reference to the accompanying drawings, depict exemplary configurations and are not representative of all examples that may be implemented or fall within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration" and does not imply "superior" or "outperforming" other examples. This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.
[0243] The description provided herein is intended to enable those skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the universal principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not 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 user equipment (UE), comprising: One or more memories that store processor-executable code; as well as One or more processors, coupled to one or more memories and individually or collectively operable to execute the code such that the UE: Receive downlink control information (DCI), which activates semi-persistent channel state information (CSI) reports via the physical uplink shared channel (PUSCH). The DCI indicates, at least in part, a first probe reference signal (SRS) resource set associated with a first nominal repetition or time slot of a first PUSCH repetition and a second probe reference signal (SRS) resource set associated with a second nominal repetition or time slot of a second PUSCH repetition, based on the PUSCH repetition type used for the semi-persistent CSI report. Based at least in part on the DCI, CSI reports are transmitted via both the first PUSCH repeat and the second PUSCH repeat, according to the first SRS resource set associated with the first nominal repeat or time slot of the first PUSCH repeat and the second SRS resource set associated with the second nominal repeat or time slot of the second PUSCH repeat. At least in part, based on the fact that the first nominal repetition of the second CSI report is different from the first actual repetition of the second CSI report, the transmission of the first iteration of the second CSI report corresponding to the first nominal repetition of the second CSI report is suppressed; as well as At least in part, based on the fact that the second nominal repetition of the second CSI report is the same as the second actual repetition of the second CSI report, a second iteration of the second CSI report corresponding to the second nominal repetition of the second CSI report is transmitted.
2. The UE of claim 1, wherein the one or more processors are further operable individually or collectively to execute the code such that the UE: Receive an indication of the SemiPersistentOnPUSCH-TriggerStateList parameter for configuring a set of trigger states, wherein the DCI activates a trigger state in the set of trigger states at least in part based on the DCI using semi-persistent-CSI-Radio Network Temporary Identifier SP-CSI-RNTI scrambling, and the semi-persistent CSI report is activated at least in part based on the DCI activating the trigger state.
3. The UE of claim 1, wherein the one or more processors are further operable individually or collectively to execute the code such that the UE: Receives an indication of the SemiPersistentOnPUSCH-TriggerStateList parameter for configuring a set of trigger states, wherein the DCI includes a field for activating a trigger state in the set of trigger states, and the semi-persistent CSI report is activated at least in part based on the activation of the trigger state based on the field.
4. The UE of claim 3, wherein the field includes a single bit for activating the trigger state.
5. The UE of claim 1, wherein the one or more processors are further operable individually or collectively to execute the code such that the UE: The determination to transmit two PUSCH repeats is based at least in part on the first SRS resource set associated with the first nominal repeat or time slot of the first PUSCH repeat and the second SRS resource set associated with the second nominal repeat or time slot of the second PUSCH repeat, wherein the CSI report is transmitted via both the first PUSCH repeat and the second PUSCH repeat based on the determination to transmit the two PUSCH repeats.
6. The UE of claim 5, wherein the configured number of PUSCH repetitions for the semi-persistent CSI report is one or more than two.
7. A network device, comprising: One or more memories that store processor-executable code; as well as One or more processors, coupled to one or more memories and individually or collectively operable to execute the code to enable the network device to: The downlink control information (DCI) is transmitted, which activates a semi-persistent channel state information (CSI) report for a user equipment (UE) via a physical uplink shared channel (PUSCH). The DCI indicates, at least in part, a first probe reference signal (SRS) resource set associated with a first nominal repetition or time slot of a first PUSCH repetition and a second probe reference signal (SRS) resource set associated with a second nominal repetition or time slot of a second PUSCH repetition, based on the PUSCH repetition type used for the semi-persistent CSI report. At least in part based on the DCI, the CSI report for the UE is received via both the first PUSCH repeat and the second PUSCH repeat, according to the first SRS resource set associated with the first nominal repeat or time slot of the first PUSCH repeat and the second SRS resource set associated with the second nominal repeat or time slot of the second PUSCH repeat. The second iteration of the second CSI report corresponding to the second nominal repetition of the second CSI report is received, at least in part, based on the fact that the second nominal repetition of the second CSI report is the same as the second actual repetition of the second CSI report.
8. The network device of claim 7, wherein the one or more processors are further operable individually or collectively to execute the code such that the network device: Transmits an indication of the SemiPersistentOnPUSCH-TriggerStateList parameter for configuring a set of trigger states, wherein the DCI activates a trigger state in the set of trigger states at least in part based on the DCI using semi-persistent-CSI-Radio Network Temporary Identifier SP-CSI-RNTI scrambling, and the semi-persistent CSI report is activated at least in part based on the DCI activating the trigger state.
9. The network device of claim 7, wherein the one or more processors are further operable individually or collectively to execute the code such that the network device: The transmission indicates the SemiPersistentOnPUSCH-TriggerStateList parameter for configuring a set of trigger states, wherein the DCI includes a field for activating a trigger state in the set of trigger states, and the semi-persistent CSI report is activated at least in part based on the activation of the trigger state based on the field.
10. The network device of claim 9, wherein the field includes a single bit for activating the trigger state.
11. The network device of claim 10, wherein the one or more processors are further operable individually or collectively to execute the code such that the network device: Transmit an indication of the configured number of PUSCH repetitions for the semi-persistent CSI report, wherein the CSI report for the UE is received via both the first PUSCH repetition and the second PUSCH repetition, regardless of the configured number of PUSCH repetitions.
12. The network device of claim 11, wherein the configured PUSCH repeat number is one or more than two.
13. The network device of claim 11, wherein the field includes a single bit for activating the trigger state.
14. A method for performing wireless communication at a user equipment (UE), comprising: Receive downlink control information (DCI), which activates semi-persistent channel state information (CSI) reports via the physical uplink shared channel (PUSCH). The DCI indicates, at least in part, a first probe reference signal (SRS) resource set associated with a first nominal repetition or time slot of a first PUSCH repetition and a second probe reference signal (SRS) resource set associated with a second nominal repetition or time slot of a second PUSCH repetition, based on the PUSCH repetition type used for the semi-persistent CSI report. Based at least in part on the DCI, CSI reports are transmitted via both the first PUSCH repeat and the second PUSCH repeat, according to the first SRS resource set associated with the first nominal repeat or time slot of the first PUSCH repeat and the second SRS resource set associated with the second nominal repeat or time slot of the second PUSCH repeat. At least in part, based on the fact that the first nominal repetition of the second CSI report is different from the first actual repetition of the second CSI report, the transmission of the first iteration of the second CSI report corresponding to the first nominal repetition of the second CSI report is suppressed; as well as At least in part, based on the fact that the second nominal repetition of the second CSI report is the same as the second actual repetition of the second CSI report, a second iteration of the second CSI report corresponding to the second nominal repetition of the second CSI report is transmitted.
15. The method of claim 14, further comprising: Receive an indication of the SemiPersistentOnPUSCH-TriggerStateList parameter for configuring a set of trigger states, wherein the DCI activates a trigger state in the set of trigger states at least in part based on the DCI using semi-persistent-CSI-Radio Network Temporary Identifier SP-CSI-RNTI scrambling, and the semi-persistent CSI report is activated at least in part based on the DCI activating the trigger state.
16. The method of claim 14, further comprising: Receives an indication of the SemiPersistentOnPUSCH-TriggerStateList parameter for configuring a set of trigger states, wherein the DCI includes a field for activating a trigger state in the set of trigger states, and the semi-persistent CSI report is activated at least in part based on the activation of the trigger state based on the field.
17. The method of claim 14, further comprising: The determination to transmit two PUSCH repeats is based at least in part on the first SRS resource set associated with the first nominal repeat or time slot of the first PUSCH repeat and the second SRS resource set associated with the second nominal repeat or time slot of the second PUSCH repeat, wherein the CSI report is transmitted via both the first PUSCH repeat and the second PUSCH repeat based on the determination to transmit the two PUSCH repeats.
18. The method of claim 17, wherein the configured number of PUSCH repetitions for the semi-persistent CSI report is one or more than two.