TWI729427B - Method of wireless communication, apparatus and computer-readable medium thereof - Google Patents

Abstract

A method of wireless communication of a UE is provided. The UE determines a reference size of a payload available in a physical uplink channel for carrying R channel state information (CSI) reports, R being an integer greater than 0, each of the R CSI reports including a first part containing CSI of a wideband and a second part containing CSI of one or more subbands of the wideband. The UE carries all first parts of the R CSI reports in the payload. The UE further carries second parts of (M-1) CSI reports of the R CSI reports in the payload. The UE carries a portion of a second part of an M^th CSI report of the R CSI reports in the payload.

Description

Wireless communication method and device, computer readable medium

The present invention generally relates to a communication system, and more specifically, relates to a method of determining a resource used by a user equipment (UE) for channel state information (CSI) reporting.

The statements in this section only provide background information about the present invention and do not constitute prior art.

Wireless communication systems can be widely deployed to provide various telecommunication services, such as telephone, video, data, messaging, and broadcasting. A typical wireless communication system can use multiple-access technology, which can support communication with multiple users by sharing available system resources. Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, and frequency division multiple access (frequency division multiple access, FDMA) system, orthogonal frequency division multiple access (OFDMA) system, single-carrier frequency division multiple access (SC-FDMA) system, and time division synchronous code division Multiple access (time division synchronous code division multiple access, TD-SCDMA) system.

These multiple access technologies are applicable to various telecommunication standards to provide a sharing protocol that enables different wireless devices to communicate at the municipal, national, regional, and even global levels. The example telecommunications standard is 5G new radio (NR). 5G NR is part of the continuous mobile broadband evolution released by the Third Generation Partnership Project (3GPP) to meet the requirements of delay, reliability, security, and scalability (for example, with the Internet of Things ( Internet of things, IoT)) related new requirements and other requirements. Some aspects of 5G NR can be based on the 4G long term evolution (LTE) standard. 5G NR technology needs further improvement. These improvements can also be applied to other multiple access technologies and telecommunication standards that use these technologies.

The following is a brief overview of one or more aspects to provide a basic understanding of these aspects. This summary is not an extensive overview of all anticipated aspects, and is neither intended to identify key or important elements of all aspects, nor does it delineate the scope of any or all aspects. Its sole purpose is to introduce some concepts in one or more aspects in a simplified form.

In one aspect of the present invention, a method, a computer-readable medium, and an apparatus are provided. The device may be a UE. The UE includes a memory and at least one processor coupled to the memory. The at least one processor is configured to determine the reference size of the available payload in the physical uplink channel used to carry R channel state information (CSI) reports. R is an integer greater than 0, and R Each of the CSI reports includes: component 1 including the CSI of the broadband and component 2 including the CSI of one or more sub-bands of the broadband. The at least one processor is configured to carry all components 1 of the R CSI reports in the payload. The at least one processor is configured to carry component 2 of (M-1) CSI reports among the R CSI reports in the payload, and M allows the reference size to be greater than or equal to (a) the R CSI reports The largest integer of the first total size of all component 1 of the report, and (b) the first total size of the component 2 of the (M-1) CSI reports in the R CSI reports. The at least one processor is configured to carry in the payload the part of component 2 of the Mth CSI report of the R CSI reports, and the Mth CSI report is not in the (M-1) CSI reports, such that The reference size is greater than or equal to (a) the component 1 of the R CSI reports, (b) the component 2 of the (M-1) CSI report, and (c) the component of the Mth CSI report 2 The second total size of the part. The at least one processor is configured to send the payload through the physical uplink channel.

The method includes determining the reference size of the available payload in the physical uplink channel for carrying R CSI reports, where R is an integer greater than 0, and each of the R CSI reports includes: including broadband CSI The component 1 and the component 2 of the CSI including one or more sub-bands of the broadband. The method also includes carrying all components 1 of the R CSI reports in the payload. The method further includes carrying component 2 of (M-1) CSI reports among the R CSI reports in the payload, and M allows the reference size to be greater than or equal to (a) all of the R CSI reports Component 1, and (b) the largest integer of the first total size of the component 2 of the (M-1) CSI reports in the R CSI reports. The method further includes carrying in the payload the part of component 2 of the Mth CSI report of the R CSI reports, the Mth CSI report is not in the (M-1) CSI reports, so that the reference size is greater than Or equal to (a) the component 1 of the R CSI reports, (b) the component 2 of the (M-1) CSI report, and (c) the part of the component 2 of the M-th CSI report The second total size. The method further includes sending the payload through the physical uplink channel.

The computer-readable medium stores computer-executable code used in the wireless communication system of the wireless device. The code is used to determine the reference size of the available payload in the physical uplink channel carrying R CSI reports, R is an integer greater than 0, and each of the R CSI reports includes: component 1 including the CSI of the broadband and component 2 of the CSI including one or more sub-bands of the broadband; the payload is carried All components 1 of R CSI reports; the payload carries the component 2 of (M-1) CSI reports among the R CSI reports, and M allows the reference size to be greater than or equal to (a) the R CSI reports The largest integer of the first total size of all components 1 of the CSI report, and (b) the first total size of the (M-1) CSI reports of the (M-1) CSI reports in the R CSI reports; carry the R in the payload The part of component 2 of the M-th CSI report of the CSI report. The M-th CSI report is not in the (M-1) CSI report, so that the reference size is greater than or equal to (a) all of the R CSI reports Component 1, (b) the component 2 of the (M-1) CSI report, and (c) the second total size of the component 2 of the M-th CSI report; and through the physical uplink The channel sends the payload.

The present invention proposes a wireless communication method and its device, and a computer readable medium. The method of dividing the CSI report into different parts for transmission solves the problem that the resources of the physical uplink channel may not be sufficient to carry all the CSI reports.

In order to accomplish the foregoing and related objectives, the features included in the one or more aspects and specified in the scope of the patent application are fully described below. The following description and drawings detail certain illustrative features of this one or more aspects. However, these features indicate several of the various ways in which the principles of each aspect are employed, and the description is intended to include all such aspects and their equivalents.

The embodiments described below in conjunction with the accompanying drawings are intended as descriptions of various configurations, and are not intended to represent the only configurations in which the concepts described herein can be practiced. This embodiment includes specific details for providing a thorough understanding of various concepts. However, it is obvious to those skilled in the art that these concepts can be practiced without the specific details. In some examples, well-known structures and components are shown in the form of block diagrams to avoid obscuring these concepts.

Several aspects of the telecommunication system will now be introduced with reference to various devices and methods. These devices and methods will be described in the following embodiments, and described in the drawings through various blocks, components, circuits, processes, and algorithms (hereinafter collectively referred to as "elememt"). These components can be implemented using electronic hardware, computer software, or any combination thereof. Whether these components are implemented in hardware or software depends on the specific application and design constraints imposed on the entire system.

An element, any part of an element, or any combination of elements can be implemented as a "processing system" including one or more processors by way of example. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, and digital signal processors (DSPs) , Reduced Instruction Set Computing (RISC) processor, Systems on A Chip (SoC), baseband processor, Field Programmable Gate Array (FPGA), programmable logic device (Programmable Logic Device, PLD), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functions described throughout the present invention. One or more processors in the processing system can execute software. Whether it is called software, firmware, middleware, microcode, hardware description language, or other, software should be broadly interpreted as instructions, instruction sets, codes, code segments, code, programs, subprograms, software components, Applications, software applications, software packages, routines, subroutines, objects, executable files, threads, processes and functions, etc.

Therefore, in one or more exemplary embodiments, the described functions may be implemented in hardware, software, or any combination thereof. If implemented in software, the function can be stored on a computer-readable medium or encoded as one or more instructions or codes on the computer-readable medium. Computer-readable media include computer storage media. For example, but not limited to, the storage medium can be any available medium that can be accessed through a computer. Such computer-readable media may include random-access memory (RAM), read-only memory (read-only memory, ROM), and electrically erasable programmable read-only memory (electrically erasable programmable memory). ROM, EEPROM), optical disk storage, disk storage, other magnetic storage devices, and combinations of the above-mentioned computer-readable media types, or any other used to store computer-executable code in the form of instructions or data structures that are accessed through a computer The medium.

Figure 1 is a schematic diagram showing an example of a wireless communication system and an access network 100. The wireless communication system (also referred to as a wireless wide area network (WWAN)) includes a base station 102, a UE 104, and an evolved packet core (EPC) 160. The base station 102 may include a macro cell (high-power cellular base station) and/or a small cell (low-power cellular base station). The macro cell includes the base station. Small cells include femtocells, picocells, and microcells.

The base stations 102 (collectively referred to as the evolved universal mobile telecommunications system terrestrial radio access network (E-UTRAN)) communicate with each other via a backhaul link 132 (for example, S1 interface) EPC 160 interface connection. In addition to other functions, the base station 102 can perform one or more of the following functions: user data transfer, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (for example, handover, dual connection), small Inter-area interference coordination, connection establishment and release, load balancing, non-access stratum (NAS) message distribution, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcasting Multicast service (multimedia broadcast multicast service, MBMS), user and device tracking, RAN information management (RAN information management, RIM), paging, location, and warning message delivery. The base stations 102 can communicate with each other directly or indirectly (for example, through the EPC 160) through the backhaul link 134 (for example, the X2 interface). The backhaul link 134 may be wired or wireless.

The base station 102 can communicate with the UE 104 wirelessly. Each of the base stations 102 can provide communication coverage for the corresponding geographic coverage area 110. There may be an aliased geographic coverage area 110. For example, the small cell 102' may have a coverage area 110' that overlaps with the coverage area 110 of one or more large base stations 102. A network that includes both small cells and macro cells can be called a heterogeneous network. The heterogeneous network may also include a home evolved node B (home evolved node B, HeNB), where the HeNB may provide services to a restricted group called a closed subscriber group (closed subscriber group, CSG). The communication link 120 between the base station 102 and the UE 104 may include uplink (uplink, UL) (also referred to as reverse link) transmission from the UE 104 to the base station 102 and/or from the base station 102 to the The UE 104 transmits on a downlink (DL) (also referred to as a forward link). The communication link 120 may use Multiple-Input And Multiple-Output (MIMO) antenna technology, which includes spatial multiplexing, beamforming and/or transmit diversity. The communication link can be carried out by means of one or more carrier waves. The base station 102/UE 104 can use the frequency spectrum of each carrier up to Y MHz bandwidth (for example, 5, 10, 15, 20, 100 MHz), where the frequency spectrum is allocated in a total of up to Yx MHz carrier aggregation (x components Carrier) is used for transmission in each direction. The carriers may be adjacent to each other or not. The carrier allocation for DL and UL may be asymmetric (for example, more or fewer carriers may be allocated for DL than UL). The component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (primary cell, PCell), and the secondary component carrier may be referred to as a secondary cell (secondary cell, SCell).

The wireless communication system may further include a Wi-Fi access point (AP) 150, where the Wi-Fi AP 150 communicates with a Wi-Fi station (station, STA) 152 via a communication link 154 in the 5 GHz unlicensed spectrum. communication. When communicating in an unlicensed spectrum, the STA 152/AP 150 can perform a clear channel assessment (CCA) before communicating to determine whether the channel is available.

The small cell 102' may operate in licensed and/or unlicensed spectrum. When operating in the unlicensed spectrum, the small cell 102' can use NR and use the same 5 GHz unlicensed spectrum used by the Wi-Fi AP 150. The small cell 102' using NR in the unlicensed spectrum can increase the coverage of the access network and/or increase the capacity of the access network.

The next generation node (gNodeB, gNB) 180 may operate at millimeter wave (mmW) frequency and/or near mmW frequency to communicate with the UE 104. When the gNB 180 operates at mmW or near mmW frequencies, the gNB 180 can be called a mmW base station. Extremely high frequency (EHF) is a part of radio frequency (RF) in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 mm and 10 mm. The radio waves in this frequency band can be called millimeter waves. Near mmW can extend down to the 3GHz frequency, with a wavelength of 100 mm. The super high frequency (SHF) frequency band ranges from 3GHz to 30GHz, also known as centimeter wave. Communication using mmW/near mmW RF frequency band has extremely high path loss and short coverage. Beamforming 184 can be used between mmW base station gNB 180 and UE 104 to compensate for extremely high path loss and small coverage.

The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, an MBMS gateway 168, and a broadcast multicast service center (BM-SC). ) 170 and a packet data network (PDN) gateway 172. The MME 162 can communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. Generally, MME 162 provides bearer and connection management. All user Internet protocol (IP) packets are transmitted through the service gateway 166, and the service gateway 166 itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC170 are connected to the PDN 176. The PDN 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a packet-swicthing streaming service (PSS), and/or other IP services. The BM-SC 170 can provide functions for MBMS user service provision and delivery. BM-SC 170 can serve as the entry point for MBMS transmission by content providers, can be used to authorize and initiate MBMS bearer services in the public land mobile network (PLMN), and can be used to schedule MBMS transmission. The MBMS gateway 168 can be used to distribute MBMS traffic to the base station 102 that belongs to the broadcast specific service of the multicast broadcast single frequency network (MBSFN) area, and can be responsible for session management (start/stop) And collect evolved MBMS (evolved MBMS, eMBMS) related payment information.

The base station can also be called gNB, Node B (NB), eNB, AP, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service Group (extended service set, ESS) or other appropriate terms. The base station 102 is an AP that the UE 104 provides to the EPC 160. Examples of UE 104 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, and global positioning systems , Multimedia devices, video devices, digital audio players (for example, MP3 players), cameras, game consoles, tablets, smart devices, wearable devices, automobiles, electric meters, air pumps, ovens or any other devices with similar functions. Some UEs 104 may also be referred to as IoT devices (eg, parking meters, air pumps, ovens, cars, etc.). UE 104 can also be called a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, Wireless terminal, remote terminal, mobile phone, user agent, mobile user, user or other appropriate terms.

In certain aspects, the UE 104 includes a payload component 192, a decision component 194, and a distribution component 198 in addition to other components. The payload component 192 determines the reference size of the available payload for carrying R CSI reports in the physical uplink channel. R is an integer greater than 0. Each of the R CSI reports includes: Component 1 and component 2 of CSI including one or more sub-bands of a wide frequency band. The UE carries all components 1 of the R CSI reports in the payload. The UE also carries the (M-1) component 2 of the CSI report of the R CSI reports in the payload. The M system allows the reference size to be greater than or equal to (a) all the component 1 of the R CSI reports and (b) R components. The largest integer of the first total size of component 2 of (M-1) CSI reports in the CSI report. The allocation component 198 carries the part of component 2 of the M-th CSI report in the R CSI reports in the payload. The M-th CSI report is not included in the (M-1) CSI reports, so that the reference size is greater than or equal to (A) All component 1 of R CSI reports, and (b) (M-1) component 2 of CSI reports of R CSI reports, and (c) the second part of component 2 of M-th CSI reports Total size. The UE transmits the payload through the physical uplink channel.

Figure 2 is a block diagram of the communication between the base station 210 and the UE 250 in the access network. In the DL, IP packets from the EPC 160 can be provided to the controller/processor 275. The controller/processor 275 implements layer 3 and layer 2 functions. Layer 3 includes the radio resource control (radio resource control, RRC) layer, and layer 2 includes the packet data convergence protocol (PDCP) layer, radio link control (RLC) layer, and medium access control ( medium access control, MAC) layer. The controller/processor 275 provides RRC layer functions, PDCP layer functions, RLC layer functions, and MAC layer functions. Among them, RRC layer functions and system information (for example, MIB, SIB) broadcast, RRC connection control (for example, RRC connection paging) , RRC connection establishment, RRC connection modification and RRC connection release), radio access technology (Radio Access Technology, RAT) inter-mobility and measurement configuration for UE measurement reports are associated; the PDCP layer function is associated with header compression/decompression Compression, security (encryption, decryption, integrity protection, integrity verification) and handover support functions are associated; the RLC layer function is associated with the transmission of the upper-layer packet data unit (PDU) through automatic reconfiguration. Error correction of automatic repeat request (ARQ), concatenation, segmentation and reassembly of RLC service data unit (service data unit, SDU), RLC data packet data unit (packet data) The re-segmentation of unit, PDU) and the re-ordering of RLC data PDU are related; among them, the MAC layer function and the mapping between the logical channel and the transmission channel, the multiplexing of MAC SDU on the transport block (transport block, TB), The demultiplexing, scheduling information report from the MAC SDU from TB, error correction through hybrid automatic repeat request (HARQ), priority processing and logical channel prioritization are associated.

The transmit (TX) processor 216 and the receive (RX) processor 270 implement layer 1 functions associated with various signal processing functions. Layer 1 including the physical (PHY) layer, which can include error detection on the transmission channel, forward error correction (FEC) encoding/decoding, interleave, rate matching, and physical channel The mapping, physical channel modulation/demodulation and MIMO antenna processing. The TX processor 216 is based on various modulation schemes (for example, binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-carry phase-shift keying ( M-phase-shift keying, M-PSK), M-quadrature amplitude modulation (M-quadrature amplitude modulation, M-QAM) processing to signal constellation (constellation) mapping. The coded and modulated symbols can then be divided into parallel streams. Then each stream can be mapped to OFDM subcarriers, multiplexed with reference signals (for example, pilots) in the time domain and/or frequency domain, and then combined together using inverse fast Fourier transform (IFFT), To generate a physical channel carrying a stream of time-domain OFDM symbols. The OFDM stream is spatially pre-coded to generate a plurality of spatial streams. The channel estimate from the channel estimator 274 can be used to determine the coding and modulation scheme, as well as for spatial processing. The channel estimation can be derived from the reference signal sent by the UE 250 and/or the channel status feedback. Then each spatial stream can be provided to a different antenna 220 via the transmitter (218TX) in each transmitter and receiver 218. Each transmitter 218TX can use the corresponding spatial stream to modulate the RF carrier for transmission.

In the UE 250, each receiver 254RX (transceiver 254 includes 254TX and 254RX) receives signals through a corresponding antenna 252. Each receiver 254RX recovers the information modulated onto the RF carrier and provides the information to the RX processor 256. The TX processor 268 and the RX processor 256 implement layer 1 functions associated with various signal processing functions. The RX processor 256 performs spatial processing on the information to recover any spatial stream sent to the UE 250. If multiple spatial streams are sent to the UE 250, the RX processor 256 can combine the multiple spatial streams into a single OFDM symbol stream. The RX processor 256 then uses a fast Fourier transform (FFT) to convert the OFDM symbol stream from the time domain to the frequency domain. The frequency domain signal includes each OFDM symbol stream for each subcarrier of the OFDM signal. The symbols and reference signals on each sub-carrier are recovered and demodulated by determining the most likely signal constellation point sent by the base station 210. The soft decision is based on the channel estimation calculated by the channel estimator 258. Then, the above soft decision is decoded and de-interleaved to recover the data and control signal originally sent by the base station 210 on the physical channel. The above-mentioned data and control signals are then provided to the controller/processor 259 that implements layer 3 and layer 2 functions.

The controller/processor 259 may be associated with a memory 260 that stores program codes and data. The memory 260 may be referred to as a computer-readable medium. In UL, the controller/processor 259 provides demultiplexing between transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from EPC 160. The controller/processor 259 is also responsible for performing error detection using acknowledgement (ACK) and/or negative (Negative Acknowledgement, NACK) protocols to support HARQ operations.

Similar to the functional description related to the DL transmission of the base station 210, the controller/processor 259 provides RRC layer functions, PDCP layer functions, RLC layer functions, and MAC layer functions, among which RRC layer functions and system information (for example, MIB, SIB) Acquisition, RRC connection, and measurement report correlation; the PDCP layer function is associated with header compression/decompression, security (encryption, decryption, integrity protection, integrity verification); the RLC layer function is associated with the upper layer PDU transfer , Through ARQ error correction, RLC SDU concatenation, segmentation and recombination, RLC data PDU re-segmentation, and RLC data PDU re-sequence related; the MAC layer function is related to the logical channel and the transmission channel Mapping, MAC SDU multiplexing on TB, demultiplexing of MAC SDU from TB, scheduling information report, error correction through HARQ, priority processing and logical channel prioritization are associated.

The TX processor 268 can use the channel estimate derived from the reference signal or feedback sent by the base station 210 by the channel estimator 258 to select an appropriate coding and modulation scheme, and to facilitate spatial processing. The spatial stream generated by the TX processor 268 can be provided to different antennas 252 via each transmitter 254TX. Each transmitter 254TX can use the corresponding spatial stream to modulate the RF carrier for transmission. The UL transmission is processed at the base station 210 in a manner similar to the function of the receiver at the UE 250 to which it is connected. The receiver (218RX) in each transmitter and receiver 218 receives signals through each antenna 220. Each receiver 218RX recovers the information modulated onto the RF carrier and provides the information to the RX processor 270.

The controller/processor 275 may be associated with a memory 276 that stores program codes and data. The memory 276 may be referred to as a computer-readable medium. In UL, the controller/processor 275 provides demultiplexing between transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from UE 250. The IP packets from the controller/processor 275 can be provided to the EPC 160. The controller/processor 275 is also responsible for error detection using ACK and/or NACK protocols to support HARQ operations.

NR refers to a radio that is configured to operate based on a new air interface (for example, except for OFDMA-based air interface) or a fixed transmission layer (for example, except for IP). NR can use OFDM with cyclic prefix (CP) in UL and DL, and can include support for half-duplex operation using Time Division Duplexing (TDD). NR can include enhanced mobile broadband (eMBB) services for broadband bandwidth (for example, more than 80MHz), millimeter wave (mmW) for high carrier frequencies (for example, 60 GHz), and for non-backward Compatible Machine Type Communication (MTC) technology for large-scale MTC (massive MTC, mMTC) and/or critical tasks for ultra-reliable low latency communication (Ultra-Reliable Low Latency Communication, URLLC) services.

It can support a single component carrier bandwidth of 100MHz. In one example, the NR RB can span 12 sub-carriers, which has a sub-carrier bandwidth of 60 kHz within a duration of 0.125 milliseconds or a sub-carrier bandwidth of 15 kHz within a duration of 0.5 milliseconds. Each radio frame can include 20 or 80 sub-frames (or NR time slots) with a length of 10 milliseconds. Each sub-frame can indicate the link direction for data transmission (for example, DL or UL), and the link direction of each sub-frame can be dynamically switched (switch). Each sub-frame can include DL/UL data and DL/UL control data. The UL and DL subframes used for NR in Figures 5 and 6 can be described in more detail below.

The NR RAN may include a central unit (CU) and a distributed unit (DU). An NR base station (for example, gNB, 5G node B, node B, transmission and reception point (TRP), AP) may correspond to one or more base stations. The NR cell can be configured as an access cell (ACell) or a data only cell (DCell). For example, the RAN (eg, central unit or distributed unit) can configure the cell. The DCell can be a cell used for carrier aggregation or dual connectivity, and cannot be used for initial access, cell selection/reselection, or handover. In some cases, the Dcell may not send a synchronization signal (SS). In some cases, DCell can send SS. The NR BS can send a DL signal to the UE to indicate the cell type. Based on the cell type indication, the UE can communicate with the NR BS. For example, the UE may determine the NR base station based on the indicated cell type to consider cell selection, access, handover, and/or measurement.

Figure 3 shows an exemplary logical architecture of the distributed RAN 300 according to various aspects of the present invention. The 5G access node (AN) 306 may include an access node controller (ANC) 302. The ANC can be the CU of the distributed RAN 300. The backhaul interface to the next generation core network (NG-CN) 304 can be terminated at the ANC. The backhaul interface to the next generation access node (NG-AN) 310 can be terminated at the ANC. ANC can be linked to one or more TRP 308 (also called base station) via F1 control plan protocol (F1 control plan protocal, F1-C)/F1 user plan protocol (F1 user plan protocal, F1-U) , NR base station, Node B, 5G NB, AP or some other terms). As mentioned above, TRP can be used interchangeably with "cell".

TRP 308 may be DU. TRP can be connected to one ANC (ANC 302) or multiple ANCs (not shown). For example, for RAN sharing, radio as a service (RaaS), and service-specific ANC deployment, TRP can be connected to multiple ANCs. TRP can include one or more antenna ports. The TRP can be configured to provide traffic to the UE independently (for example, dynamic selection) or jointly (for example, joint transmission).

The partial architecture of the distributed RAN 300 can be used to illustrate the fronthaul definition. The architecture can be defined to support forwarding solutions across different deployment types. For example, the architecture may be based on transmission network capabilities (eg, bandwidth, delay, and/or jitter). The architecture can share features and/or components with LTE. According to various aspects, NG-AN 310 can support dual connection with NR. NG-AN can share the shared fronthaul for LTE and NR.

This architecture can enable collaboration between TRP 308. For example, collaboration may be preset within the TRP and/or across the TRP via the ANC 302. According to various aspects, the inter-TRP (inter-TRP) interface may not be needed/existent.

According to various aspects, the dynamic configuration of separate logic functions can be within the distributed RAN 300 architecture. PDCP, RLC, and MAC protocols can be adaptively placed in ANC or TRP.

Figure 4 shows an example physical architecture of the distributed RAN 400 according to various aspects of the present invention. A centralized core network unit (C-CU) 402 can host core network functions. C-CU can be deployed in a centralized manner. The C-CU function can be offloaded (for example, to advanced wireless service (AWS)) in an effort to handle peak capacity. A centralized RAN unit (C-RU) 404 can host one or more ANC functions. Optionally, the C-RU can host core network functions locally. C-RU can be deployed in a distributed manner. C-RU can be closer to the edge of the network. The DU 406 can host one or more TRPs. DU can be located at the edge of a network with RF capabilities.

FIG. 5 is a schematic diagram 500 showing an example of a sub-frame centered on DL. The DL-centered sub-frame may include a control part 502. The control part 502 may exist in the initial or beginning part of the sub-frame centered on the DL. The control part 502 may include various scheduling information and/or control information corresponding to each part of the DL-centered sub-frame. In some configurations, the control portion 502 may be a PDCCH, as shown in Figure 5. The DL-centered sub-frame may also include a DL data part 504. The DL data portion 504 can sometimes be referred to as the payload of the DL-centric sub-frame. The DL data part 504 may include communication resources for transmitting DL data from a scheduling entity (for example, UE or BS) to a subordinate entity (for example, UE). In some configurations, the DL data portion 504 may be a physical DL shared channel (PDSCH).

The DL-centered sub-frame may also include a shared UL part 506. The shared UL portion 506 may sometimes be referred to as UL burst, shared UL burst, and/or various other suitable terms. The shared UL part 506 may include feedback information corresponding to each other part of the DL-centered sub-frame. For example, the shared UL part 506 may include feedback information corresponding to the control part 502. Non-limiting examples of feedback information may include ACK signals, NACK signals, HARQ indicators, and/or various other suitable types of information. The shared UL portion 506 may include additional or alternative information, such as information about random access channel (RACH) progress, scheduling request (SR), and various other suitable types of information.

As shown in Figure 5, the end of the DL data portion 504 may be spaced from the beginning of the shared UL portion 506 in time. This time interval may sometimes be referred to as a gap, a guard period, a guard interval, and/or various other suitable terms. The interval provides time for handover from DL communication (for example, reception operation of the lower-level entity (for example, UE)) to UL communication (for example, transmission of the lower-level entity (for example, UE)). Those with ordinary knowledge in the technical field will understand that the foregoing is only an example of a sub-frame centered on DL, and there may be alternative structures with similar features without deviating from the various aspects described herein.

FIG. 6 is a schematic diagram 600 showing an example of a sub-frame centered on UL. The UL-centered sub-frame may include a control part 602. The control part 602 may exist in the initial or beginning part of the sub-frame centered on the UL. The control section 602 in Figure 6 may be similar to the control section 502 described above with reference to Figure 5. The UL-centric sub-frame may also include a UL data part 604. The UL data portion 604 can sometimes be referred to as the payload of the UL-centric sub-frame. The UL part refers to communication resources used to transmit UL data from a subordinate entity (for example, UE) to a scheduling entity (for example, UE or BS). In some configurations, the control part 602 may be a PDCCH.

As shown in FIG. 6, the end of the control section 602 can be separated in time from the start of the UL data section 604. This time interval may sometimes be referred to as a gap, a guard period, a guard interval, and/or various other suitable terms. This interval provides time for switching from DL communication (for example, the receiving operation of the scheduling entity) to the UL communication (for example, the sending of the scheduling entity). The UL-centered sub-frame may also include a common UL part 606. The shared UL section 606 in Figure 6 is similar to the shared UL section 506 described above with reference to Figure 5. The common UL portion 606 may additionally or alternatively include information about CQI, SRS, and various other suitable types of information. Those skilled in the art will understand that the foregoing is only an example of a UL-centered sub-frame, and there may be alternative structures with similar features without deviating from the various aspects described herein.

In some cases, two or more subordinate entities (for example, UE) can communicate with each other using sidelink signals. The practical application of this kind of secondary link communication can include public safety, proximity service, UE to network relay, vehicle-to-vehicle (V2V) communication, Internet of Everything (IoE) communication, IoT communications, mission-critical mesh and/or various other suitable applications. Generally, the secondary link signal refers to the signal being transmitted from a subordinate entity (for example, UE 1) to another subordinate entity (for example, UE 1) without the need to relay communication through a scheduling entity (for example, UE or BS) , UE 2) signal, even if the scheduling entity can be used for scheduling and/or control purposes. In some examples, licensed spectrum can be used to transmit secondary link signals (unlike wireless local area networks that usually use unlicensed spectrum).

The CSI report provides information about the current channel conditions to the network. CSI usually includes one or more pieces of information: rank indicator (RI), precoder matrix indicator (PMI), channel-quality indicator (CQI), and channel status information reference Signal (channel state information reference signal, CSI-RS) resource indicator (CSI-RS resource indicator, CRI).

FIG. 7 is a schematic diagram 700 showing the communication between the UE 704 and the base station 702. In this example, base station 702 communicates with UE 704 on carrier 710. Specifically, UE 704 operates on a wide frequency band 714 of carrier 710 with N sub-bands 718-1 to 718-N. The base station 702 and the UE 704 communicate in other time slots, the downlink time slot 722, and the uplink time slot 732. In addition, in this example, the downlink time slot 722 has a control area 724 and a data area 726, and the uplink time slot 732 has a control area 734 and a data area 736. The data area 736 of the uplink time slot 732 includes a physical uplink control channel (PUCCH) 740 and a physical uplink shared channel (PUSCH) 750 allocated to the UE 704.

因數）確定之資源（例如，PUSCH分配和PUSCH頻譜效率）或其組合來確定。 HARQ回饋之有效負載大小係P_HARQ ，以及排程請求之有效負載大小係P_SR 。因此，CSI報告之可用有效負載之大小係可用有效負載742或754之大小P除去HARQ之有效負載大小和排程請求之有效負載大小，換句話說，

其中，P_CSI 係CSI報告之可用有效負載之大小。然而，應該注意的是，有效負載大小P_CSI 也可以獨立於P_HARQ 和P_SR 被確定。The UE 704 needs to send uplink control information (unlink control information, UCI) to the base station 702. UCI may include Hybrid Automatic Repeat-reQuest (HARQ) feedback, scheduling request, and/or CSI report. UE 704 may send UCI in PUCCH 740 or UCI part 752 of PUSCH 750. PUCCH 740 provides usable payload 742 for carrying UCI. The UCI portion 752 provides an available payload 754 for carrying UCI. The UE 704 can select the resources of the PUCCH 740 or the UCI part 752 to carry UCI. The size of the available payload (ie, payload 742 or payload 754) of the selected resource is P. P can be based on the resources indicated by dynamic signaling, or on the parameters of transmission parameters and semi-statistical indications (for example,

Factor) to determine the resource (for example, PUSCH allocation and PUSCH spectrum efficiency) or a combination thereof. The payload size of HARQ feedback is P _HARQ , and the payload size of scheduling request is P _SR . Therefore, the available payload size of the CSI report is the available payload 742 or 754 size P minus the HARQ payload size and the schedule request payload size, in other words,

Among them, P _CSI is the size of the available payload of the CSI report. However, it should be noted that the payload size P _CSI can also be determined independently of P _HARQ and P _SR .

FIG. 8 is a schematic diagram 800 of the CSI report sent from the UE 704 to the base station 702. In this example, there are R CSI reports 810-1 to 810-R to be carried on UCI part 752 or PUCCH 740. R is an integer greater than zero. Figure 8 shows a CSI report r 810-r (where R is 1, 2, 3, ... or R), which can represent any one of R CSI reports 810-1 to 810-R. Each of the R CSI reports has a CSI component 1 812 on the broadband 714 and a component 2 814 including CSI on one or more of the N subbands 718-1 to 718-N. For a given CSI report r 810-r, component 1 812 of CSI report r 810-r includes: sub-report 813-r of CSI including broadband 714, and component 2 814 of CSI report r 810-r includes: N respectively N _r th subbands reported CSI 718-1 through 718-N of the sub-bands of the N _r 816-r-1 to 816-rN _r. N _r is an integer greater than 0 and not greater than N.

Given CSI report r 810-r component 1 812, the required payload size of sub-report 813-r is P _Part-1,r , and CSI report r 810-r N _r sub-reports 816-r-1 to The payload size required for 816-rN _{r is P Part-2,r} . Moreover, if U _r N _r sub-system reports 816-r-1 payload sizes required for the report to a single sub-816-rN _r, the reported CSI then R & lt report sub-N _r 810-r of the desired payload size P _Part-2,r is U _r multiplied by N _r . in other words,

_{The required payload size P Required} of R CSI reports 810-1 to 810-R is the payload size of component 1 812 and component 2 814 of all CSI reports. in other words,

In some cases, the resources of the physical uplink channel (for example, PUCCH 740 or UCI part 752) may not be sufficient to carry all R CSI reports 810-1 to 810-R. In other words, P _CSI may be less than P _Required . For example, the payload 754 may only carry some but not all R CSI reports 810-1 to 810-R.

。In the first technique, in this case, the UE 704 can reduce the size of each of the R CSI reports 810-1 to 810-R. Specifically, R CSI reports 810-1 to 810-R may be affected equally (ie, proportionally). More specifically, for the CSI report r 810-r, it is calculated _{by multiplying the required payload size (that is, the sum of P Part-1,r} and P _Part-2,r ) by the coefficient (P _CSI /P _Required) Available payload size P _r . More specifically, P _r is calculated by the following equation.

.

_{It should be noted that P Required} can be calculated by the above equation. For example, if the available payload size P _CSI is 25% of the payload size required by _{P Required , then the coefficient (P CSI} /P _Required ) is 0.25. Then, the available payload size of CSI report r 810-r is 25% of the required payload size of CSI report r 810-r. In other words, in this technique, the available payload size of each of the R CSI reports 810-1 to 810-R is 25% of the required payload size of the CSI report.

Once P _r is known, there are different ways to carry the part of the CSI report r 810-r. For example, one way is to place the sub-reports 813-r and N _r sub-reports 816-r-1 to 816-rN _r of the component 1 812 in the payload one by one, until the size limit is reached.

以及

。In the second technique, the UE 704 first determines the number of sub-reports in the sub-reports 813-1 to 813-R that can be carried in the payload 742 or 754 in the component 1 of the R CSI reports 810-1 to 810-R. . For example, the UE 704 first determines the number K so that the P _CSI is large enough to carry the sub-reports 813-1 to 813-K but not enough to carry the sub-reports 813-1 to 813-(K+1). K is an integer greater than 0 but less than R. Therefore, the UE 704 places the sub-reports 813-1 to 813-K in the payload 742 or 754. For example, when K is 2, the P _CSI is large enough to carry the sub-reports 813-1 to 813-2, but not enough to carry the sub-reports 813-1 to 813-3. In other words, K can be determined by the following inequality:

as well as

.

。 換句話說，P_CSI 足夠大可以攜帶所有子報告813-1至813-R。If K is equal to R (for example, R is 10 and K is 10), all components 1 (812-1 to 812-10) of R CSI reports 810-1 to 810-R can be carried in payload 742 or 754 . under these circumstances,

. In other words, P _CSI is large enough to carry all sub-reports 813-1 to 813-R.

。 隨後，UE 704可以嘗試在有效負載742或754盡可能多攜帶成分2 814中之子報告。更具體地，UE 704確定數量M，從而使得L足夠大以攜帶CSI報告810-1至810-（M-1）之成分2 814，但是不足以攜帶CSI報告810-1至810-M之成分2 814。因此，UE 704放置CSI報告810-1至810-（M-1）之成分2 814於有效負載742或754中。例如，當M係3時，則L足夠大以攜帶CSI報告810-1到810-2之成分2 814。但不足以攜帶CSI報告810-1至810-3之成分2 814。換句話說，M由以下不等式確定：

以及

。The payload size L of the remaining part of the payload 742 or 754 is the payload size of P _CSI excluding all sub-reports 813-1 to 813-R. In other words,

. Subsequently, the UE 704 may try to carry as many sub-reports in the component 2 814 in the payload 742 or 754 as much as possible. More specifically, the UE 704 determines the number M so that L is large enough to carry the components 2 814 of the CSI reports 810-1 to 810-(M-1), but not enough to carry the components of the CSI reports 810-1 to 810-M 2 814. Therefore, the UE 704 places the component 2 814 of the CSI report 810-1 to 810-(M-1) in the payload 742 or 754. For example, when M is 3, then L is large enough to carry components 2 814 of CSI reports 810-1 to 810-2. But it is not enough to carry the 2 814 of the CSI report 810-1 to 810-3. In other words, M is determined by the following inequality:

as well as

.

。After this step, the remaining payload size L ₁ is the payload size of L minus the initial (M-1) component 2. in other words,

.

， 其中，U_M 係單個子報告所需之有效負載大小。Subsequently, UE 704 determines the M-th CSI report (i.e., CSI reporting M 810-M) of N _M sub report 816-M-1 to 816-MN _M may be in the payload 742 or 754 carries the number of son report. More specifically, UE 704 determines the number of J, L ₁ such that J is large enough to carry the sub-sub report Report N _M 816-M-1 to the 816-MN _M in, but not enough to carry the report sub-N _M 816-M- (J + 1) sub-reports from 1 to 816-MN _M. For example, when J is 2, then L ₁ is large enough to carry two of the sub-reports 816-M-1 to 816-MN _M , but not enough to carry the sub-reports 816-M-1 to 816-MN _M Three of the sub-reports. In another example, if J is 0, L1 is not enough to carry any of the sub-reports 816-M-1 to 816-MN _M. In other words, J is determined by the following equation:

, Where U _M is the payload size required for a single sub-report.

If J is greater than 0, the UE 704 determines to place J of the sub-reports 816-M-1 to 816-MN _M of the CSI report M 810-M in the payload 742 or 754. The UE 704 may select J sub-reports from the sub-reports 816-M-1 to 816-MN _{M based on one or more predetermined rules.}

Figure 9 is a schematic diagram 900 showing a technique for selecting J sub-reports from sub-reports 816-M-1 to 816-MN _{M based on predetermined rules.} In this example, _NM is 10 and J is 5, which means that the sub-reports of CSI report 810-M 816-M-1 to 816-MN _M have 10 sub-bands out of N sub-bands 718-1 to 718-N Of the 10 sub-reports, and select 5 of the 10 sub-reports to be carried in the payload.

。 例如，如果N_M 係10並且J係3，則D係4。在第9圖中，N_M 係10並且J係5，因此D係2。其次，UE 704生成具有D行和J列之矩陣902，即，具有2行和5列。兩行係第一行904和第二行906。五列係第一列908、第二列910、第三列912、第四列914和第五列916。First, the UE determines the number D, which is _{the smallest integer greater than or equal to (N M} /J). In other words, D can be calculated by the following equation:

. For example, if _NM is 10 and J is 3, then D is 4. In Figure 9, _NM is 10 and J is 5, so D is 2. Second, the UE 704 generates a matrix 902 with D rows and J columns, that is, with 2 rows and 5 columns. The two rows are the first row 904 and the second row 906. The five rows are the first row 908, the second row 910, the third row 912, the fourth row 914, and the fifth row 916.

Then, UE 704 column by column N _M (here, N _M line 10) sub-bands are put into the matrix 902. More specifically, first, sub-band 1 918 and sub-band 2 920 are placed in the first column 908 in sequence. Then subband 3 922 and subband 4 924 are placed in the second column 910 in sequence. Then, the sub-band 5 926 and the sub-band 6 928 are placed in the third column 912 in sequence. Then, sub-band 7 930 and sub-band 8 932 are placed in the fourth column 914 in sequence. Finally, sub-band 9 934 and sub-band 10 936 are placed in the fifth column 916 in sequence.

Then, the UE 704 then sequentially reads J (here, J is 5) subbands from the matrix 902 row by row. More specifically, the UE sequentially reads five sub-bands from the first column 904, and the five sub-bands selected from the 10 sub-bands are sub-band 1 918, sub-band 3 922, sub-band 5 926, and sub-band 7 930. And subband 9934. Therefore, the UE 704 can select J sub-reports of CSI including the selected J sub-bands (ie, sub-band 1 918, sub-band 3 922, sub-band 5 926, sub-band 7 930, and sub-band 9 934) and place J sub-bands Report 742 or 754 in the payload.

Therefore, in this example, in the R CSI reports 810-1 to 810-R, the payload 742 or 754 includes all the sub-reports 813-1 to 813-R in the component 1 812, and the sub-report 816 in the component 2 814 -1 to 816-(M-1), and J sub-reports selected from sub-reports 816-M in component 2 814.

Figure 10 is a flowchart 1000 showing the method (process) of sending a CSI report. This method may be executed by a UE (for example, UE 704, apparatus 1202/1202'). In operation 1002, the UE 704 determines the availability of the physical uplink channel (for example, the UCI part 752 of PUSCH 750) for carrying R CSI reports (for example, CSI report 1 810-1 to CSI report R 810-R) The reference size (for example, P _CSI ) of the payload (for example, payload 754). R is an integer greater than 0, and each of the R CSI reports includes: component 1 (e.g., component 1 812) of CSI including a broadband (e.g., broadband 714) and one or more subbands (e.g., component 1 812) in the broadband (e.g., broadband 714) For example, component 2 (e.g., component 2 814) of the CSI of sub-bands 718-1 to 718-N).

In operation 1004, the UE 704 carries all components 1 of the R CSI reports in the payload (for example, sub-reports 813-1 to 813-R).

In operation 1006, UE 704 carries component 2 of (M-1) CSI reports of R CSI reports in the payload (for example, sub-reports 816-1 to 816-(M-1)). M is allowing the reference size to be greater than or equal to (a) all component 1 of R CSI reports (for example, sub-reports 813-1 to 813-R) and (b) (M-1) of the R CSI reports The largest integer of the first total size of component 2 (for example, sub-reports 816-1 to 816-(M-1)).

In operation 1008, the UE 704 determines the difference between the reference size and the first total size (for example, L ₁ ). In operation 1010, the UE 704 determines the CSI of the J sub-bands based on the difference (e.g., L ₁ ) (e.g., sub-reports 816-M-1, 816-M-2, 816-M-3, 816-M- 4) The third total size of CSI to be included in the payload and J sub-bands. J is the largest integer that allows the third total size not to be greater than the difference. Operation 1010 is followed by operation 1102 in Figure 11.

Figure 11 is a flowchart 1100 showing the method (process) of sending a CSI report. This method may be executed by a UE (for example, UE 704, apparatus 1202/1202'). _{In operation 1102, the UE 704 operates to obtain the N M} sub-bands (for example, sub-bands 918, 920, 922) of the M-th CSI report (for example, CSI report M 810-M) of the R CSI reports based on the first predetermined rule. , 924, 926, 928, 930, 932, 934, 936) select J sub-bands (for example, sub-bands 918, 922, 926, 930, 934). It should be noted that there are different alternatives to predetermined rules.

Operations 1110 to 1116 show an alternative to the predetermined rule. In operation 1110, the UE 704 determines the number D (for example, D is 2 as shown in Figure 9). In some configurations, for _{reports associated with N M} sub-bands, the number D is _{the smallest integer greater than or equal to (N M} /J). In some configurations, the UE 704 receives an indication of the number D of indications. The quantity D is determined based on this instruction. In operation 1112, the UE 704 generates a matrix (eg, matrix 902) with D rows (eg, first row 904 and second row 906) and J columns (eg, first column 908 to fifth column 916). In operation 1114, UE 704 sequentially column by column N _M subbands (e.g., subband 918,920,922,924,926,928,930,932,934,936) disposed in a matrix. In operation 1116, the UE 704 sequentially reads the J subbands from the matrix row by row.

Operations 1104 to 1108 show another alternative to the predetermined rule. In operation 1104, the UE 704 determines the number D (for example, D is 2 as shown in Figure 9). In operation 1106, UE 704 the N _M subbands (e.g., subband 918,920,922,924,926,928,930,932,934,936) assigned as the D group (e.g., a first column 904 and The second column 906), each row includes J or less sub-bands (for example, 5). In some configurations, UE in a first order of the order N _M of each sub-group D is assigned to the respective groups of the frequency band. In some configurations, one of the D groups includes _{even-numbered sub-bands of N M} sub-bands, and the other group of D groups includes odd-numbered sub-bands of _{N M sub-bands.} In operation 1108, the UE 704 selects a first group of D groups (for example, the first row 904), and the first group includes J subbands (for example, subbands 918, 922, 926, 930, 934). In some configurations, the J sub-bands are the even-numbered sub-bands _{of the N M sub-bands in the first order.} In some configurations, the J sub-bands are odd-numbered sub-bands _{of the N M sub-bands in the first order.}

In operation 1118, the part (for example, J sub-reports) of component 2 (sub-report 816-M) of the M-th CSI report carried by the UE 704 in the payload. The Mth CSI report is not in the (M-1) CSI report. The reference size (for example, P _CSI ) is greater than or equal to (a) all component 1 of R CSI reports, and (b) (M-1) component 2 of CSI reports, and (c) one of M-th CSI report component 2 The second total size of the part.

In operation 1120, the UE 704 transmits the payload through a physical uplink channel (for example, PUCCH 740 or PUSCH 750).

Figure 12 is a conceptual data flow diagram 1200 showing the data flow between different components/devices in an exemplary device. The device 1202 may be a UE. The device 1202 includes a receiving component 1204, a payload component 1206, a decision component 1208, a distribution component 1212, and a sending component 1210.

The payload component 1206 determines the available payload in the physical uplink channel (for example, the UCI part 752 of PUSCH 750) for carrying R CSI reports (for example, CSI report 1810-1 to CSI report R 810-R) (For example, payload 754) reference size (for example, P _CSI ). R is an integer greater than 0, and each of the R CSI reports includes: component 1 (e.g., component 1 812) of CSI including a broadband (e.g., broadband 714) and one or more subbands (e.g., component 1 812) in the broadband (e.g., broadband 714) For example, component 2 (e.g., component 2 814) of the CSI of sub-bands 718-1 to 718-N).

The distribution component 1212 carries all components 1 of the R CSI reports (for example, sub-reports 813-1 to 813-R) in the payload.

The decision component 1208 determines the number M, which allows the reference size to be greater than or equal to (a) all component 1 of the R CSI reports (for example, sub-reports 813-1 to 813-R) and (b) one of the R CSI reports ( M-1) The largest integer of the first total size of component 2 (for example, sub-reports 816-1 to 816-(M-1)) of a CSI report. The distribution component 1212 carries the component 2 of the (M-1) CSI reports of the R CSI reports in the payload (for example, sub-reports 816-1 to 816-(M-1)).

The decision component 1208 determines the difference between the reference size and the first total size (for example, L ₁ ). The decision component 1208 determines that the CSI of J sub-bands (for example, sub-reports 816-M-1, 816-M-2, 816-M-3, 816-M-4) will be determined based on the difference (for example, L ₁₎ The third total size of CSI included in the payload and J sub-bands. J is the largest integer that allows the third total size not to be greater than the difference.

_{The decision component 1208 operates to obtain the N M} sub-bands (for example, sub-bands 918, 920, 922, 924, 926) of the M-th CSI report (for example, CSI report M 810-M) of the R CSI reports based on the first predetermined rule. , 928, 930, 932, 934, 936) select J sub-bands (for example, sub-bands 918, 922, 926, 930, 934). It should be noted that there are different alternatives to predetermined rules.

In some configurations, the decision component 1208 determines the number D (for example, D is 2 as shown in Figure 9). In some configurations, for _{reports associated with N M} sub-bands, the number D is _{the smallest integer greater than or equal to (N M} /J). In some configurations, the UE 704 receives an indication of the number D of indications. The quantity D is determined based on this instruction. The decision component 1208 generates a matrix (for example, the matrix 902) having D rows (for example, the first row 904 and the second row 906) and J columns (for example, the first column 908 to the fifth column 916). Decision making component sequentially column by column 1208 N _M subbands (e.g., subband 918,920,922,924,926,928,930,932,934,936) disposed in a matrix. The decision component 1208 sequentially reads the J subbands from the matrix row by row.

In some configurations, the decision making component 1208 N _M subbands (e.g., subband 918,920,922,924,926,928,930,932,934,936) assigned as the D group (e.g., a first column 904 and the second column 906), each row includes J or fewer sub-bands (for example, 5). Decision making component 1208 first order sequentially turn each of N _M assigned to each sub-group in the D group of frequency bands. In some configurations, one of the D groups includes _{even-numbered sub-bands of N M} sub-bands, and the other group of D groups includes odd-numbered sub-bands of _{N M sub-bands.} The decision component 1208 selects a first group of D groups (for example, the first column 904), and the first group includes J subbands (for example, subbands 918, 922, 926, 930, 934). In some configurations, the J sub-bands are the even-numbered sub-bands _{of the N M sub-bands in the first order.} In some configurations, the J sub-bands are odd-numbered sub-bands _{of the N M sub-bands in the first order.}

The distribution component 1212 carries the part (for example, J sub-reports) of component 2 (sub-report 816-M) of the M-th CSI report carried in the payload. The Mth CSI report is not in the (M-1) CSI report. The reference size (for example, P _CSI ) is greater than or equal to (a) all component 1 of R CSI reports, and (b) (M-1) component 2 of CSI reports, and (c) one of M-th CSI report component 2 The second total size of the part.

The sending component 1210 sends the payload to the base station 1250 through a physical uplink channel (for example, PUCCH 740 or PUSCH 750).

FIG. 13 shows a schematic diagram 1300 of the hardware implementation of the device 1202' using the processing system 1314. The device 1202' may be a UE. The processing system 1314 may be implemented using a bus bar structure, which is generally represented by a bus bar 1324. The bus bar 1324 may include any number of interconnected bus bars and bridges, the number of which depends on the specific application of the processing system 1314 and the overall design constraints. The bus 1324 connects various circuits including one or more processors and/or hardware components together. It can pass through one or more processors 1304, receiving components 1204, payload components 1206, decision components 1208, and sending components. 1210, a distribution component 1212, and a computer-readable medium/memory 1306 are indicated. The bus 1324 can also be connected to various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits.

The processing system 1314 may be coupled to the transceiver 1310, which may be one or a plurality of transceivers 254. The transceiver 1310 is coupled to one or more antennas 1320, which may be a communication antenna 252.

The transceiver 1310 provides a device for communicating with various other devices through a transmission medium. The transceiver 1310 receives signals from one or more antennas 1320, extracts information from the received signals, and provides the extracted information to the processing system 1314, specifically the receiving component 1204. In addition, the transceiver 1310 receives information from the processing system 1314, specifically the transmitting component 1210, and generates a signal to be applied to one or more antennas 1320 based on the received information.

The processing system 1314 includes one or more processors 1304 coupled to a computer-readable medium/memory 1306. One or more processors 1304 are responsible for the overall processing, including the execution of software stored on the computer-readable medium/memory 1306. When the software is executed by one or more processors 1304, it can cause the processing system 1314 to perform the various functions described above for any specific device. The computer-readable medium/memory 1306 can also be used to store data manipulated by one or more processors 1304 when executing software. The processing system 1314 further includes at least one of a receiving component 1204, a payload component 1206, a decision component 1208, a sending component 1210, and a distribution component 1212. The component can be a software component that runs in one or more processors 1304, resides/stores in a computer-readable medium/memory 1306, or is coupled to one or more hardware of one or more processors 1304 Components, or combinations thereof. The processing system 1314 may be a component of the UE 250 and may include at least one of the memory 260 and/or the TX processor 268, the RX processor 256, and the controller/processor 259.

In one configuration, the device 1202/device 1202' for wireless communication includes a device for performing each of the operations of FIG. 8. The aforementioned device may be one or more components of the aforementioned device 1202 and/or the processing system 1314 of the device 1202' configured to perform the functions described by the aforementioned device.

As described above, the processing system 1314 may include the TX processor 268, the RX processor 256, and the controller/processor 259. Therefore, in one configuration, the aforementioned devices may be configured as TX processor 268, RX processor 256, and controller/processor 259 that perform the functions described in the aforementioned device.

It can be understood that the specific sequence or hierarchy of the blocks in the process/flow chart of the present invention is an example of an exemplary method. Therefore, it should be understood that the specific order or hierarchy of the blocks in the process/flow chart can be rearranged based on design preferences. In addition, some blocks can be further combined or omitted. The appended method application scope introduces the elements of each block in a simplified order, but this is not meant to be limited to the specific order or level introduced.

The above content is provided to enable persons with ordinary knowledge in the technical field to practice the various aspects described in the present invention. Various modifications to these aspects are obvious to those with ordinary knowledge in the technical field, and the general principles defined in the present invention can also be applied to other aspects. Therefore, the scope of patent application is not intended to be limited to the various aspects shown in this article, but is the full scope consistent with the scope of language patent application. In the scope of language patent application, unless specifically stated as such, elements in the singular form The quotation is not intended to mean "one and only one", but "one or plural". The term "exemplary" means "serving as an example, instance, or illustration" in the present invention. Any aspect described as "exemplary" in the present invention is not necessarily more preferred or advantageous than other aspects. Unless specifically stated, the term "some" refers to one or more. Such as "at least one of A, B, or C", "one or more of A, B, or C", "at least one of A, B, and C", "one or more of A, B, and C" The combination of "" and "A, B, C or any combination thereof" includes any combination of A, B, and/or C, and may include a plurality of A, a plurality of B, or a plurality of C. More specifically, such as "at least one of A, B, or C", "one or more of A, B, or C", "at least one of A, B, and C", "one of A, B, and C" The combination of "or plural" and "A, B, C or any combination thereof" can be A, only B, only C, A and B, A and C, B and C, or A and B and C, where any This combination may include one or more members of A, B, or C, or members of A, B, or C. All structural and functional equivalents of the elements of the various aspects described in the present invention are known or will be known later to those with ordinary knowledge in the art, and are expressly incorporated into the present invention by reference, and It is intended to be covered by the scope of the patent application. Moreover, regardless of whether the present invention is clearly stated in the scope of the patent application, the content disclosed in the present invention is not intended to be exclusively used by the public. The terms "module", "mechanism", "component", "device", etc. may not be substitutes for the term "device". Therefore, no element in the scope of the patent application is interpreted as a device plus function, unless the element is explicitly stated using the phrase "device for...".

100: access network 102, 210, 702, 1250: base station 102': small cell 104, 250, 704: user equipment 110, 110': coverage area 120, 154: communication link 132, 134: backhaul link Road 150: access point 152: station 160: evolution packet core 162, 164: mobile management entity 166: service gateway 168: multimedia broadcast multicast service gateway 170: broadcast multicast service center 172: packet data network Gateway 174: local user server 176: packet data network 180: next-generation node B 184: beamforming 500, 600, 700, 800, 900, 1300: schematic diagram 220, 252, 1320: antenna 259, 275: control Transmitter/processor 216, 268: Transmit processor 256, 270: Receive processor 218: Transmitter and receiver 254, 1310: Transceiver 260, 276: Memory 258, 274: Channel estimator 300, 400: Distributed Radio Access Network 302: Access Node Controller 304: Next Generation Core Network 306: 5G Access Node 308: Transmitting and Receiving Point 310: Next Generation Access Node 402: Centralized Core Network Unit 404: Centralized Radio Storage Network unit 406: Distributed unit 502, 602: Control part 504: Downlink data part 604: Uplink data part 506, 606: Shared uplink part 710: Carrier 718-1, 718-2... 718-N, 918, 920, 922, 924, 926, 928, 930, 932, 934, 936: Sub-band 714: Broadband 722: Downlink time slot 732: Uplink time slot 724, 734: Control area 726, 736: data area 740: physical uplink control channel 750: physical uplink shared channel 752: UCI part 742, 754: payload 810-1, 810-2...810-R, 810-r, 810 -M: CSI report 813-1, 813-2……813-R, 813-r, 813-M, 816-1-1……816-1-N ₁ , 816-2-1……816-2 -N ₂ , 816-M-1……816-MN _M , 816-R-1……816-RN _R , 816-r-1……816-rN _r : Sub-report 812: CSI report component 1 814 : Component 2 of the CSI report 902: Matrix 904, 906: Rows 908, 910, 912, 914, 916: Columns 1002, 1004, 1006, 1008, 1010, 1102, 1104, 1106, 1108, 1110, 1112, 1114, 1116 , 1118, 1120: Operation 1000, 1100, 1200, 130 0: Flowchart 1202, 1202': Device 1204: Receiving component 192, 1206: Payload component 198, 1212: Distributing component 194, 1208: Decision component 1210: Sending component 1304: Processor 1306: Computer readable medium/memory 1314: Processing system 1324: Bus

Figure 1 is a schematic diagram showing an example of a wireless communication system and an access network. Figure 2 shows a block diagram of the base station communicating with the UE in the access network. Figure 3 shows an example logical architecture of a distributed radio access network. Figure 4 shows an example physical architecture of a distributed radio access network. Figure 5 is a schematic diagram showing an example of a sub-frame centered on DL. Figure 6 is a schematic diagram showing an example of a sub-frame centered on UL. Figure 7 is a schematic diagram showing the communication between the UE and the base station. Figure 8 is a schematic diagram showing the structure of the entire CSI report sent from the UE to the base station. Figure 9 is a schematic diagram of a technique for selecting sub-bands based on specific predetermined rules. Figure 10 is a flowchart of the method (process) for sending a CSI report. Figure 11 is another flowchart of the method (process) for sending a CSI report. Figure 12 is a conceptual data flow diagram showing the data flow between different components/devices in an exemplary device. Figure 13 is a schematic diagram showing a hardware implementation example of a device using a processing system.

810-1, 810-2...810-R, 810-r, 810-M: CSI report

813-1, 813-2......813-R, 813-r, 813-M, 816-1-1......816-1-N ₁ , 816-2-1.. ....816-2-N ₂ , 816-M-1......816-MN _M , 816-R-1......816-RN _R , 816-r-1.. ....816-rN _r : Sub-report

812: CSI report component 1

814: CSI report component 2

800: schematic diagram

Claims (13)

A wireless communication method, comprising: determining one of the available payloads in a physical uplink channel between the user equipment and a base station for carrying R channel status information reports at a user equipment For reference size, R is an integer greater than 0. Each of the R channel status information reports includes: a component 1 including a broadband channel status information and a channel status information including one or more sub-bands of the broadband Component 2; all components 1 of the R channel status information reports are determined at the user equipment; (M-1) channel status information reports among the R channel status information reports are determined at the user equipment Component 2, M allows the reference size to be greater than or equal to (a) all component 1 of the R channel status information report, and (b) the (M-1) channel status in the R channel status information report The largest integer of the first total size of the component 2 of the information report; the user equipment determines the part of the component 2 of the M-th channel status information report of the R channel status information report, the M-th channel status information report The channel status information report is not in the (M-1) channel status information reports, so that the reference size is greater than or equal to (a) the all components 1 of the R channel status information reports, (b) the (M-1) The component 2 of a channel status information report, and (c) the second total size of the part of the component 2 of the M-th channel status information report; the R channel status information is generated at the user equipment The signal of all components of the report 1, the component 2 of the (M-1) channel status information report, and the signal of the component 2 of the M-th channel status information report; and to the user equipment at the The base station transmits the signal in the payload in the physical uplink channel. For example, the wireless communication method described in claim 1, wherein, the part of the component 2 of the M-th channel status information report includes channel status information of J sub-bands of the _{N M sub-bands, and J is less than or} An integer equal to N _M. The wireless communication method as defined in claim 2 of the scope of the item, wherein the odd sub-band-based N _M J subbands of subbands. The wireless communication method as defined in claim 2 of the scope of the item, wherein the even sub-band-based N _M J subbands of subbands. The wireless communication method described in item 2 of the scope of patent application, further comprising: determining a difference between the reference size and the first total size; and determining the channel state of the J sub-bands based on the difference The information is included in the payload and a third total size of channel status information of the J sub-bands, where J is the largest integer that allows the third size to be no greater than the difference; and based on a first predetermined rule from the Select the J sub-bands from the N _{M sub-bands.} The wireless communication method described in item 5 of the scope of patent application, wherein the selecting the J sub-bands includes: determining a number D; _{allocating the N M} sub-bands into D groups, each group including J or less的 sub-bands; and selecting a first group of the D groups, the first group including the J sub-bands. The wireless communication method described in item 6 of the scope of the patent application, wherein the number D is _{the smallest integer greater than or equal to (N M} /J). The wireless communication method described in item 6 of the scope of patent application further comprises: receiving an indication indicating the quantity D, and determining the quantity D based on the indication. The wireless communication method as defined in claim item 6 of the range, wherein the N _M subbands the allocation to the D groups comprising successively first order N _M subbands of each of the sequentially assigned to the D In each group of each group. For the wireless communication method described in claim 6, wherein D is determined to be 2, wherein one of the D groups includes _{even-numbered sub-bands of the N M} sub-bands, and another of the D groups The group includes odd-numbered sub-bands of _{the N M sub-bands.} For the wireless communication method described in item 5 of the scope of the patent application, wherein the selection of the J sub-bands includes: determining a number D is _{the smallest integer greater than or equal to (N M} /J); generating a line with D rows and J columns a matrix; sequentially column by placing the sub-bands in the N _M matrix; row by row and the J subbands are sequentially read from the matrix. A device for wireless communication, the device is a user equipment, including: a memory; and at least one processor, coupled to the memory and configured to: determine the user equipment for carrying A reference size of a payload available in a physical uplink channel between the user equipment and a base station of the R channel status information report, R is an integer greater than 0, the R channel status information report Each of them includes: component 1 including channel status information of a broadband and component 2 including channel status information of one or more sub-bands of the broadband; determining the R channel status information reports at the user equipment All components of 1; determine the component 2 of (M-1) channel status information reports among the R channel status information reports at the user equipment, and M allows the reference size to be greater than or equal to (a) the R The largest integer of the first total size of all components 1 of the channel status information report, and (b) the first total size of the component 2 of the (M-1) channel status information reports of the R channel status information reports; The user equipment determines that one of the R channel status information reports is a part of component 2 of the M-th channel status information report, and the M-th channel status information report is not in the (M-1) channel status information report , Making the reference size greater than or equal to (a) the R channel status information report There are component 1, (b) the component 2 of the (M-1) channel status information report, and (c) the second total size of the component 2 of the M-th channel status information report; in The user equipment generates all components of the R channel status information report, the component 2 of the (M-1) channel status information report, and the component 2 of the M-th channel status information report. Part of the signal; and sending the signal in the payload in the physical uplink channel to the base station at the user equipment. A computer-readable medium storing computer-executable codes for wireless communication of wireless devices, including codes for determining a user device and a base station for carrying R channel status information reports at a user device A reference size of an available payload in one of the physical uplink channels, R is an integer greater than 0, each of the R channel status information reports includes: a wideband channel status information Component 1 and component 2 including channel status information of one or more sub-bands of the broadband; all components 1 of the R channel status information reports are determined at the user equipment; the R components are determined at the user equipment (M-1) component 2 of the channel status information report in the channel status information report. M allows the reference size to be greater than or equal to (a) all component 1 of the R channel status information report, and (b) The largest integer of the first total size of one of the component 2 of the (M-1) channel status information reports in the R channel status information reports; one of the R channel status information reports is determined at the user equipment The part of component 2 of the M-th channel status information report, the M-th channel status information report is not in the (M-1) channel status information report, so that the reference size is greater than or equal to (a) the R channels All component 1 of the status information report, (b) the component 2 of the (M-1) channel status information report, and (c) one of the parts of the component 2 of the M-th channel status information report Two total size; Generate at the user equipment one of the all components of the R channel status information report 1, the component 2 of the (M-1) channel status information report, and the component 2 of the M-th channel status information report The part of the signal; and sending the signal in the payload in the physical uplink channel to the base station at the user equipment.

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