TWI721065B - Apparatus of user equipment, apparatus of base station and non-transitory computer-readable storage medium - Google Patents

Abstract

Devices and methods of scheduling uplink data requests in 5G systems are generally described. A UE transmits a scheduling request (SR) or an 5G physical random access channel (xPRACH) to an eNB on a 5G or LTE link resource reserved for 5G scheduling requests or unreserved. The message is dependent on which of link is used for the transmission. Depending on whether a reserved resource and a reserved logical channel ID is used, the UE transmits the eNB with a BSR and perhaps a beam measurement report after sending an SR and in response to receiving an uplink grant for the same. The UE then transmits a 5G physical uplink shared channel in response to receiving on an optimal beam an 5G physical downlink control channel containing a 5G uplink grant for the data. When an xPRACH is transmitted, a reduced random access response is used.

Description

Device of user equipment, device of base station and non-transitory computer readable storage medium

The embodiment belongs to a radio access network. Some embodiments relate to providing data in cellular and wireless local area network (WLAN) networks, including the 3rd Generation Partnership Project Long Term Evolution (3GPP LTE) network and LTE-A (LTE-A) network and the fourth Generation (4G) network and fifth generation (5G) network. Some embodiments relate to the design of uplink requests in 5G networks.

With the increase of different types of devices communicating with multiple network devices, the use of the 3GPP LTE system has increased. With the advent of services such as video streaming, this has increased both the number of user equipment (UEs) and the broadband used by these user equipment, and has made LTE networks increasingly strained. In order to increase capacity, the next generation of LTE networks may be able to apply multiple input multiple output (MIMO). MIMO systems use multi-path signal propagation to communicate with UEs on the same or overlapping frequencies via multiple signals from the same evolved Node B (eNB). These signals will interfere with each other (if they are on the same path) on). This type of uplink or downlink data The increase can be dedicated to one type of UE to increase the effective bandwidth of that UE by the number of beams (single user MIMO or SU-MIMO) or can be distributed across multiple UEs using different beams for each UE ( Multiple users MIMO or MU-MIMO).

However, beamforming can complicate many transmission and reception issues. For example, when the UE intends to request resources for uplink data transmission, the eNB cannot know the beam used by the UE for scheduling request reception. To solve this, repeated scheduling request transmission can be used to allow the eNB to perform beam scanning for stable scheduling request detection. This can unpleasantly increase the system administration burden associated with scheduling request delivery.

100: Internet

101: Radio Access Network

102: user equipment

104: Evolved Node B

104A: Giant Evolutionary Node

104B: Low-power evolved node

115: S1 interface

120: core network

122: Mobility Management Entity

124: service gateway

126: Packet Data Network Gateway

200: user equipment

202: Application Circuit

204: Fundamental frequency circuit

204a: Second-generation baseband processor

204b: third-generation baseband processor

204c: Fourth-generation baseband processor

204d: other baseband processors

204e: Central Processing Unit

204f: Audio digital signal processor

206: RF circuit

206a: Mixer circuit

206b: Amplifier circuit

206c: filter circuit

206d: synthesizer circuit

208: Front-end module circuit

210: Antenna

300: Communication device

301: Antenna

302: physical layer circuit

304: media access control layer circuit

306: Processing Circuit

308: memory

312: Transceiver circuit

314: Interface

400: Resource grid

400: Communication device

402: hardware processor

404: main memory

406: static memory

408: Intranet connection

410: display unit

412: Text input device

414: User Interface Navigation Device

416: storage device

418: Signal Generator

420: network interface device

421: Sensor

422: Communication device can read media

424: instruction

426: Communication Network

428: output controller

502: User Equipment

504: Long Term Evolution Node B

506: Fifth Generation Evolved Node B

512: Operation

514: Operation

516: operation

518: operation

602: User Equipment

604: Long Term Evolution Node B

606: Fifth Generation Evolved Node B

612: Operation

614: operation

616: operation

618: operation

702: User Equipment

704: Long Term Evolution Node B

706: Fifth Generation Evolved Node B

712: operation

714: operation

716: Operation

718: operation

802: user equipment

804: Long Term Evolution Evolution Node B

806: Fifth Generation Evolved Node B

812: Operation

814: operation

816: operation

818: operation

820: 5G physical uplink shared channel

902: user equipment

904: Fifth Generation Evolved Node B

912: operation

914: operation

916: Operation

918: Operation

920: Operation

1002: user equipment

1004: The fifth-generation evolved node B

1012: Operation

1014: Operation

1016: Operation

In the drawings (not necessarily drawn to ratio), the same numbers may describe similar components in different drawings. The same number with different letters added at the end can represent different examples of similar components. The drawings generally illustrate many of the embodiments discussed in this document by way of example rather than by way of limitation.

Figure 1 is a functional diagram of a wireless network according to some embodiments.

Figure 2 illustrates the components of a communication device according to some embodiments.

FIG. 3 shows a block diagram of a communication device according to some embodiments.

FIG. 4 shows another block diagram of a communication device according to some embodiments.

Figure 5 illustrates an uplink request design for a non-standalone LTE system according to some embodiments.

Figure 6 illustrates another uplink request design for a non-standalone LTE system according to some embodiments.

FIG. 7 illustrates another uplink request design for a non-standalone LTE system according to some embodiments.

FIG. 8 illustrates another uplink request design for a non-standalone LTE system according to some embodiments.

Figure 9 illustrates another uplink request design for a standalone LTE system according to some embodiments.

Figure 10 illustrates another uplink request design for a standalone LTE system according to some embodiments.

[Content and Implementation of the Invention]

The following embodiments and drawings fully illustrate specific examples, so that persons with ordinary knowledge in the technical field can implement them. Other embodiments may incorporate structural, logical, electrical processes and other changes. Parts and features of some embodiments may be included in, or substituted for, those parts and features of other embodiments. The embodiments set forth in the scope of patent application cover all available equivalents of those patent scope.

Figure 1 shows an example of a partial end-to-end network architecture of a Long Term Evolution (LTE) network with various components of the network according to some embodiments. As used herein, LTE network refers to both LTE and LTE-upgraded (LTE-A) networks and other versions of LTE networks to be developed. The network 100 may include a radio access network (RAN) coupled together via the S1 interface 115 (for example, as described, E-UTRAN or Evolved Universal Terrestrial Radio Electrical access network) 101 and core network 120 (for example, shown as Evolved Packet Core (EPC)). For convenience and simplicity, in this example, only a part of the core network 120 and the RAN101 are displayed.

The core network 120 may include a mobility management entity (MME) 122, a serving gateway (serving GW) 124, and a packet data network gateway (PDN GW) 126. The RAN 101 may include evolved Node Bs (eNB) 104 (which can operate as a base station) for communicating with user equipment (UE) 102. The eNB 104 may include a giant eNB 104a and a low power (LP) eNB 104b. The eNB 104 and the UEs 102 can apply the synchronization technology described in this document.

MME122 is similar in function to the control plane of the old service GPRS support node (SGSN). The MME 122 can manage the mobility status during access, such as gateway selection and tracking area list management. The Serving GW124 can terminate the interface towards the RAN101, and route data packets between the RAN101 and the core network 120. In addition, the Serving GW 124 may be a local mobility anchor point for inter-eNB handover, and may also provide an anchor for inter-3GPP mobility. Other responsibilities may include lawful interception, charging, and some policy enforcement. Serving GW124 and MME122 can be implemented in one physical node or separate physical nodes.

The PDN GW126 can terminate the SGi interface towards the Packet Data Network (PDN). The PDN GW126 can route data packets between the EPC120 and the external PDN, and can implement policy enforcement and charge data collection. The PDN GW126 can also provide anchor points for mobile devices with non-LTE access. The external PDN can be any kind of IP network and IP multimedia subsystem (IMS) domain. The PDN GW 126 and the serving GW 124 can be implemented in a single physical node or separate physical nodes.

The eNB 104 (mega and micro) can terminate the air interface protocol, and can be the first connection point for the UE 102. In some embodiments, the eNB104 can perform a variety of logical functions for the RAN101, including but not limited to RNC (Radio Network Controller Function), such as radio carrier management, uplink and downlink dynamic radio resource management, and Data packet scheduling and mobility management. According to an embodiment, the UEs 102 can be configured to communicate an Orthogonal Frequency Division Multiplexing (OFDM) communication signal with the eNB 104 on a multi-carrier communication channel according to OFDMA communication technology. The OFDM signal may include a plurality of orthogonal sub-carriers.

The S1 interface 115 may be an interface separating the RAN101 and the EPC120. It can be divided into two parts: S1-U, which can transport traffic data between the eNB104 and the serving GW124; and S1-MME, which can be the signal transmission interface between the eNB104 and the MME122. The X2 interface may be an interface between several eNBs 104. The X2 interface can include two parts: X2-C and X2-U. X2-C may be a control plane interface between several eNBs 104, and X2-U may be a user plane interface between several eNBs 104.

With a cellular network, the LP unit 104b can generally be used to extend the coverage to indoor areas where outdoor signals are insufficient, or to increase network capacity in densely used areas. In particular, the use of units of different sizes, mega-units, micro-units, pico units, and femto units to enlarge the coverage of a wireless communication system to improve system performance is expected. Units of different sizes can operate on the same frequency band, or can operate on different Operating on frequency bands, each unit operates in a different frequency band, or only units of different sizes operate on different frequency bands. As used herein, the term LP eNB means any fairly suitable LP eNB for implementing smaller cells (smaller than megacells), such as femtocells, picocells, or microcells. Femtocell eNBs are generally provided by mobile network operators to their home or corporate customers. The femto unit may generally be the size of a home gateway or smaller, and is usually connected to a broadband line. The femto unit can be connected to the mobile operator's mobile network and provide additional coverage generally in the range of 30 to 50 feet. Therefore, the LP eNB 104b may be a femto eNB because it is coupled through the PDN GW126. Similarly, a pico unit may be a wireless communication system that generally covers a small area, such as in a building (office, shopping mall, station, etc.) or in the nearest airplane. A pico cell eNB can generally be connected to another eNB via an X2 link (such as to a mega eNB via its base station controller (BSC) function). Therefore, the LP eNB may be implemented as a pico unit eNB because it can be coupled to the mega eNB 104a via the X2 interface. The pico cell eNB or other LP eNB 104b may incorporate some or all of the functions of the mega eNB LP eNB 104a. In some cases, this may be referred to as an access point base station or an enterprise femto unit.

Communication on the LTE network can be divided into several 10ms frames, each of which can contain 10 1ms subframes. Each sub-frame of the frame may successively contain two 0.5ms slots. Each subframe can be used for uplink (UL) communication from UE to eNB or downlink (DL) communication from eNB to UE. In one embodiment, in a specific frame, the eNB can allocate more than the UL communication DL communication for most purposes. The eNB can schedule transmissions on multiple frequency bands (f1 and f2). Resources are allocated to subframes used in one frequency band, which may be different from those in another frequency band. Depending on the system used, each slot of the subframe can contain 6 to 7 OFDM symbols. In one embodiment, the sub-frame may contain 12 sub-carriers. The downlink resource grid can be used for downlink transmission from eNB to UE, and the uplink resource grid can be used for uplink transmission from UE to eNB or from UE to another UE. The resource grid may be a time-frequency grid, which is a physical resource in the downlink in each slot. The smallest time-frequency unit in the resource grid can be represented as a resource element (RE). Each row and each column of the resource grid can respectively correspond to an OFDM symbol and an OFDM subcarrier. The resource grid may contain resource blocks (RBs), which indicate the mapping of physical channels to resource elements and physical RBs (PRBs). PRB may be the smallest unit resource that can be allocated to the UE. The resource block may be 180kHz wide in frequency and 1 slot long in time. In terms of frequency, the resource block may be 12×15kHz sub-carriers or 24×7.5kHz sub-carriers wide. For most channels and signals, each resource block can use 12 subcarriers depending on the system bandwidth. In frequency division duplex (FDD) mode, both the uplink and downlink frames may be 10ms and separate frequency (full duplex) or time (half duplex). In Time Division Duplex (TDD), uplink and downlink subframes can be transmitted on the same frequency and are multiplexed in the time domain. The duration of the resource grid 400 in the time domain corresponds to one sub-frame or two resource blocks. Each resource grid may include 12 (subcarrier)*14 (symbol)=168 resource elements.

Each OFDM symbol can contain a cyclic prefix (CP), which can be used to effectively remove inter-symbol interference (ISI) and fast Fourier transform (FFT) cycles. The duration of CP can be determined by the delay spread of the highest predicted degree. Although the distortion from the previous OFDM symbol may exist in the CP (CP with sufficient duration), the previous OFDM symbol does not enter the FFT period. Once the FFT periodic signal is received and digitized, the receiver can ignore the signal in the CP.

There may be many different physical downlink channels, which are transmitted using these resource blocks, including the physical downlink control channel (PDCCH) and the physical downlink shared channel (PDSCH). Each downlink sub-frame can be divided into PDCCH and PDSCH. The PDCCH normally occupies the first two symbols of each sub-frame, and among other things, it also conveys information about the transmission format, resource allocation related to the PDSCH channel, and H-ARQ related to the uplink shared channel. News. The PDSCH can transport user data and higher-level signals to the UE and occupy the remaining part of the sub-frame. Generally speaking, based on the channel quality information provided from the UEs to the eNB, downlink scheduling (allocation control and sharing of channel resource blocks to UEs in the unit) can be implemented at the eNB, and then the downlink resource allocation information can be sent To each UE on the PDCCH used (assigned to) the UE. The PDCCH may contain downlink control information (DCI) in one of many formats, which instructs the UE how to discover and decode the data transmitted on the PDSCH in the same subframe from the resource grid. The DCI format can provide details such as the number of resource blocks, resource allocation type, modulation scheme, transmission block, redundancy version, coding rate, and so on. Each DCI The format may have a cyclic redundancy code (CRC) and be stirred with a radio network temporary identifier (RNTI) that identifies the target UE intended for use by the PDSCH. The use of RNTI for a specific UE can limit the decoding of the DCI format (and thus the corresponding PDSCH) to only the intended UE.

In addition to PDCCH, enhanced PDCCH (EPDCCH) can be used by eNB and UE. Unlike PDCCH, EPDCCH can be configured in the resource block allocated for PDSCH under normal conditions. Different UEs can have different EPDCCH configurations, which are configured via radio resource control (RRC) signal transmission. Each UE can be configured with an array of EPDCCHs, and the configuration may also be different between the groups. Each EPDCCH group can have 2, 4, or 8 PRB pairs. In some embodiments, the resource blocks configured for EPDCCHs in a specific subframe can be used for PDSCH transmission. If in the subframe, the resource blocks are not used for EPDCCH transmission.

The embodiments described herein can be implemented as a system using any suitably configured hardware and/or software. Figure 2 illustrates the components of a UE according to some embodiments. At least some of the components shown may be used in an eNB or MME, for example, such as UE 102 or eNB 104 shown in FIG. 1. UE 200 and other components can be configured to use synchronization signals as described herein. The UE 200 may be one of the UEs 102 shown in FIG. 1, and may be a static, non-mobile device, or may be a mobile device. In some embodiments, the UE 200 may include an application circuit 202, a baseband circuit 204, a radio frequency (RF) circuit 206, a front-end module (FEM) circuit 208, and one or more antennas 210, which are coupled at least as shown Together. At least some of the baseband circuit 204, the RF circuit 206, and the FEM circuit 208 may form a transceiver. in In some embodiments, other network elements, such as eNB, may contain some or all of the components shown in FIG. 2. Others of these network elements, such as MME, may contain an interface (such as an S1 interface) to communicate with the eNB over the wired connection of the relevant UE.

The application or processing circuit 202 may include one or more application processors. For example, the application circuit 202 may include circuits such as, but not limited to, one or more single-core or multi-core processors. The processor may include any combination of general-purpose processors and special-purpose processors (eg, graphics processors, application processors, etc.). The processor may be coupled and/or may include memory/storage, and may be configured to execute instructions stored in the memory/storage to cause many applications and/or operating systems to run on the system.

The baseband circuit 204 may include circuits such as, but not limited to, one or more single-core or multi-core processors. The baseband circuit 204 may include one or more baseband processors and/or control logic to process the baseband signal received from the receive signal path of the RF circuit 206 and generate the baseband for the transmit signal path of the RF circuit 206 Signal. The baseband processing circuit 204 can interface with the application circuit 202 for generating and processing baseband signals, and for controlling the operation of the RF circuit 206. For example, in some embodiments, the baseband circuit 204 may include a second-generation (2G) baseband processor 204a, a third-generation (3G) baseband processor 204b, a fourth-generation (4G) baseband processor 204c, And/or other baseband processors 204d used in other current generations, under development, or future generations (for example, fifth generation (5G), 5G, etc.). The baseband circuit 204 (for example, one or more of the baseband processors 204a to 204d) can process a variety of radio controls that cause communication with one or more radio networks via the RF circuit 206. 制function. Radio control functions may include but are not limited to signal modulation/demodulation, encoding/decoding, radio frequency shifting, and so on. In some embodiments, the modulation/demodulation circuit of the baseband circuit 204 may include FFT, precoding, and/or cluster mapping/demapping functions. In some embodiments, the encoding/decoding circuit of the baseband circuit 204 may include convolution, tail-revolution, turbo, Viterbi, and/or low-density parity check (LDPC) encoder/decoder functions. The embodiments of modulation/demodulation and encoder/decoder functions are not limited to these examples, and other suitable functions may be included in other embodiments.

In some embodiments, the baseband circuit 204 may include protocol stack elements, such as, for example, Evolved Universal Terrestrial Radio Access Network (EUTRAN) protocol elements, including physical (PHY), medium access control (MAC), and radio link. Control (RLC), Packet Data Convergence Protocol (PDCP), and/or Radio Resource Control (RRC) components. The central processing unit (CPU) 204e of the baseband circuit 204 can be configured to run protocol stacking components for PHY, MAC, RLC, PDCP, and/or RRC layer signal transmission. In some embodiments, the baseband circuit may include one or more audio digital signal processors (DSP) 204f. The audio DSP 204f may include components for compression/decompression and echo cancellation, and may include other appropriate processing components in other embodiments. The components of the baseband circuit can be appropriately combined in a single chip, a single chip group, or in some embodiments, configured on the same circuit board. In some embodiments, some or all of the constituent components of the baseband circuit 204 and the application circuit 202 can be implemented together, such as, for example, on a system-on-chip (SOC).

In some embodiments, the baseband circuit 204 may provide for communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuit 204 can support and evolve the Universal Terrestrial Radio Access Network (EUTRAN) and/or other wireless metropolitan area networks (WMAN), wireless local area networks (WLAN), and wireless personal area networks. Network (WPAN) communication. Embodiments in which the baseband circuit 204 is configured to support radio communications with more than one wireless protocol may be referred to as a multi-mode baseband circuit. In some embodiments, the device can be configured to operate in accordance with communication standards or other protocols or standards, including IEEE 802.16 wireless technology (WiMax), including adapted (ad) IEEE802.11 IEEE802.11 wireless technology (WiFi) (which operates in the 60GHz millimeter spectrum), a variety of other wireless technologies (such as Global System for Mobile Communications (GSM), Enhanced Data Rate Global System for Mobile Communications Evolution (EDGE), GSM EDGE radio storage Access network (GERAN), universal mobile communication system (UMTS), UMTS terrestrial radio access network (UTRAN), or other 2G, 3G, 4G, 5G, etc. technologies that have been developed or will be developed).

The RF circuit 206 can use modulated electromagnetic radiation through non-solid media to enable communication with the wireless network. In many embodiments, the RF circuit 206 may include switches, filters, amplifiers, etc. to facilitate communication with wireless networks. The RF circuit 206 may include a receiving signal path, and the receiving signal path may include a circuit that down-converts the RF signal received from the FEM circuit 208 and provides a baseband signal to the baseband circuit 204. The RF circuit 206 may also include a transmission signal path, which may include an up-conversion by the baseband circuit The baseband signal provided by 204 and the RF output signal are provided to the FEM circuit 208 for transmission.

In some embodiments, the RF circuit 206 may include a receiving signal path and a transmitting signal path. The receiving signal path of the RF circuit 206 may include a mixer circuit 206a, an amplifier circuit 206b, and a filter circuit 206c. The transmission signal path of the RF circuit 206 may include a filter circuit 206c and a mixer circuit 206a. The RF circuit 206 may also include a synthesizer circuit 206d for synthesizing the frequency used by the mixer circuit 206a of the receiving signal path and the transmitting signal path. In some embodiments, the mixer circuit 206a of the receive signal path may be configured to down-convert the RF signal received from the FEM circuit 208 based on the synthesized frequency provided by the synthesizer circuit 206d. The amplifier circuit 206b can be configured to amplify the down-converted signal, and the filter circuit 206c can be a low-pass filter (LPF) or a band-pass filter (BPF) that is configured to remove unwanted signals from the down-converted signal. Necessary signal to generate the output baseband signal. The output baseband signal can be provided to the baseband circuit 204 for further processing. In some embodiments, the output baseband signal may be a zero-frequency baseband signal, although this is not necessary. In some embodiments, the mixer circuit 206a of the receiving signal path may include a passive mixer, although the scope of these embodiments is not limited to this aspect.

In some embodiments, the mixer circuit 206a of the transmission signal path can be configured to up-convert the input baseband signal based on the synthesized frequency provided by the synthesizer circuit 206d to generate the RF output signal for the FEM circuit 208. The baseband signal can be provided by the baseband circuit 204 and can be provided by the filter circuit Filtered by 206c. The filter circuit 206c may include a low-pass filter (LPF), although the scope of the embodiments is not limited to this aspect.

In some embodiments, the mixer circuit 206a of the receiving signal path and the mixer circuit 206a of the transmitting signal path may include two or more mixers, and may be configured to be used for quadrature down conversion and/ Or up-conversion. In some embodiments, the mixer circuit 206a of the receiving signal path and the mixer circuit 206a of the transmitting signal path may include two or more mixers, and may be configured for image suppression (for example, Hartley image suppression) . In some embodiments, the mixer circuit 206a and the mixer circuit 206a of the receive signal path can be configured for direct down conversion and/or direct up conversion, respectively. In some embodiments, the mixer circuit 206a of the receiving signal path and the mixer circuit 206a of the transmitting signal path may be configured for superheterodyne operation.

In some embodiments, the output baseband signal and the input baseband signal may be analog baseband signals, although the scope of the embodiments is not limited to this aspect. In some alternative embodiments, the output baseband signal and the input baseband signal may be digital baseband signals. In these alternative embodiments, the RF circuit 206 may include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuits, and the baseband circuit 204 may include a digital baseband interface for communicating with the RF circuit 206 .

In some dual-mode embodiments, separate radio IC circuits can be provided for processing signals for each spectrum, although the scope of these embodiments is not limited to this aspect.

In some embodiments, the synthesizer circuit 206d may be a fractional N synthesizer or a fractional N/N+1 synthesizer. Although the scope of the embodiment is not limited to this aspect, other types of frequency synthesizers may be suitable. For example, the synthesizer circuit 206d may be a sigma delta synthesizer, a frequency multiplier, or a synthesizer including a phase lock loop with a frequency divider.

The synthesizer circuit 206d can be configured to synthesize the output frequency used by the mixer circuit 206a of the RF circuit 206 based on the frequency input and the divider control input. In some embodiments, the synthesizer circuit 206d may be a fractional N/N+1 synthesizer.

In some embodiments, the frequency input may be provided by a voltage controlled oscillator (VCO), although this is not necessary. The divider control input can be provided by the baseband circuit 204 or the application processor 202 according to the desired output frequency. In some embodiments, the divider control input (eg, N) may be determined from a lookup table based on the channel indicated by the application processor 202.

The synthesizer circuit 206d of the RF circuit 206 may include a divider, a delay locked loop (DLL), a multiplexer, and a phase accumulator. In some embodiments, the divider may be a dual modulus divider (DMD), and the phase accumulator may be a digital phase accumulator (DPA). In some embodiments, the DMD can be configured to divide the input signal by N or N+1 (eg, based on a carry output) to provide a fractional divisor. In some example embodiments, the DLL may include a set of series-connected, adjustable, delay elements, phase detectors, supply pumps, and D-type flip-flops. In these embodiments, the delay element can be configured to decompose the VCO period into the phases of Nd equal packets, where Nd is the delay The number of delay elements in the late line. In this way, the DLL provides negative feedback to help confirm that the total delay through the delay line is a VCO cycle.

In some embodiments, the synthesizer circuit 206d may be configured to generate the carrier frequency as the output frequency, while in other embodiments, the output frequency may be a multiple of the carrier frequency (for example, twice the carrier frequency, four times the carrier frequency). Times) and used in combination with a quadrature generator and divider circuit to generate multiple signals with multiple different phases relative to each other at the carrier frequency. In some embodiments, the output frequency may be the LO frequency (fLO). In some embodiments, the RF circuit 206 may include an IQ/polarity converter.

The FEM circuit 208 may include a received signal path, which may include configured to operate on the RF signal received from one or more antennas 210, amplify the received signal, and provide an amplified version of the received signal to the RF circuit 206. Circuit for further processing. The FEM circuit 208 may also include a transmission signal path, which may include a circuit configured to amplify the signal for transmission provided by the RF circuit 206 for use by one or more of the antennas 210 Multiple to send.

In some embodiments, the FEM circuit 208 may include a TX/RX switch to switch between transmission mode and reception mode operation. The FEM circuit may include a receiving signal path and a transmitting signal path. The received signal path of the FEM circuit may include a low noise amplifier (LNA) to amplify the received RF signal and provide the amplified received RF signal as an output (for example, to the RF circuit 206). The transmission signal path of the FEM circuit 208 may include a power amplifier for amplifying the input RF signal (for example, provided by the RF circuit 206) (PA) and one or more filters used to generate RF signals for subsequent transmission (for example, by one or more of one or more antennas 210).

In some embodiments, the UE 200 may include additional elements such as, for example, memory/storage, display, camera, sensor, and/or input/output (I/O) interface, as described in more detail below. In some embodiments, the UE 200 described herein may be a part of a portable wireless communication device, such as a personal digital assistant (PDA), a laptop or portable computer with wireless communication capabilities, and a wireless Internet machine , Wireless phones, smart phones, wireless headsets, pagers, instant messaging devices, digital cameras, access points, televisions, medical devices (for example, heart rate monitors, blood pressure monitors, etc.), or wireless reception and/ Or other devices that send information. In some embodiments, the UE 200 may include one or more user interfaces designed to cause the user to interact with the system and/or peripheral component interfaces designed to cause the peripheral components to interact with the system. For example, UE200 may include a keyboard, keypad, touchpad, display, sensor, non-volatile memory port, universal serial bus (USB) port, audio socket, power interface, one or more antennas, graphics One or more of processors, application processors, speakers, microphones, and other I/O components. The display may be a liquid crystal display (LCD) or a light emitting diode (LED) screen including a touch screen. The sensor may include a gyroscope sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit can communicate with components of the positioning network, such as global positioning system (GPS) satellites.

The antenna 210 may include one or more directional or omnidirectional antennas, such as dipole antennas, monopole antennas, patch antennas, loop antennas, and microstrip antennas. Antennas, or other types of antennas suitable for transmitting RF signals. In some multiple-input multiple-output (MIMO) embodiments, the antenna 210 can be effectively separated to take advantage of the possible spatial diversity and different channel characteristics.

Although UE200 is shown as having many separate functional elements, one or more of these functional elements can be combined and implemented by a combination of software configuration elements, such as including digital signal processors (DSPs) Processing components, and/or other hardware components. For example, some components may include one or more microprocessors, DSPs, field programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), radio frequency integrated circuits (RFICs), and are used to implement at least those described herein. Explain the combination of various hardware and logic circuits of functions. In some embodiments, a functional element means one or more processes operating on one or more processing elements.

The embodiments can be implemented in one or a combination of hardware, firmware, and software. The embodiments can also be implemented as instructions stored on a computer-readable storage device, which can be read and executed by at least one processor to perform the operations described herein. The computer-readable storage device may include any non-transitory mechanism for storing information in a form that can be read by a machine (for example, a computer). For example, computer-readable storage devices may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media, optical storage media, flash memory devices, and other storage devices and media. Some embodiments may include one or more processors, and may be configured with instructions stored on a computer-readable storage device.

Figure 3 is a block diagram of a communication device according to some embodiments. The apparatus may be a UE or an eNB, such as the UE 102 shown in FIG. 1 or The eNB 104, which can be configured to track the UE described herein. The physical layer circuit 302 can perform a variety of encoding and decoding functions, and these functions can include the formation of baseband signals for transmission and decoding of received signals. The communication device 300 may also include a medium access control layer (MAC) circuit 304 for controlling access to the wireless medium. The communication device 300 may also include a processing circuit 306 (such as one or more single-core or multi-core processors) and a memory 308 configured to perform the operations described herein. The physical layer circuit 302, the MAC circuit 304, and the processing circuit 306 can handle a variety of radio control functions that enable communication with one or more radio networks compatible with one or more radio technologies. Radio control functions can include signal modulation, encoding, decoding, radio frequency displacement, and so on. For example, similar to the device shown in FIG. 2, in some embodiments, communication can be enabled by one or more of WMAN, WLAN, and WPAN. In some embodiments, the communication device 300 may be configured to operate in accordance with 3GPP standards or other agreements or standards, including WiMax, WiFi, WiGig, GSM, EDGE, GERAN, UMTS, UTRAN, or other 3Gs that have been developed or will be developed. , 4G, 5G and other technologies. The communication device 300 may include a transceiver circuit 312 for enabling wireless communication with other external devices, and an interface 314 for enabling wired communication with other external devices. As another example, the transceiver circuit 312 can perform various transmission and reception functions, such as signal conversion between the fundamental frequency range and the radio frequency (RF) range.

The antenna 301 may include one or more directional or omnidirectional antennas, such as dipole antennas, monopole antennas, patch antennas, loop antennas, microstrip antennas, or other types of antennas suitable for transmitting RF signals. In some In the multiple-input multiple-output (MIMO) embodiment, the antenna 301 can be effectively separated to take advantage of the possible spatial diversity and different channel characteristics.

Although the communication device 300 is shown as having many separate functional elements, one or more of these functional elements can be combined, and can be implemented by a combination of software configuration elements (such as including a digital signal processor ( DSPs) processing components and/or other hardware components), or one or more of these functional components can be implemented in a plurality of different devices. For example, some components may include one or more microprocessors, DSPs, FPGAs, ASICs, RFICs, and a combination of various hardware and logic circuits for performing at least the functions described herein. In some embodiments, a functional element may mean one or more processes operating on one or more processing elements. The embodiments can be implemented in one or a combination of hardware, firmware, and software. The embodiments can also be implemented as instructions stored on a computer-readable storage device, which can be read and executed by at least one processor to perform the operations described herein.

FIG. 4 shows another block diagram of a communication device according to some embodiments. In alternative embodiments, the communication device 400 can operate as a standalone device, or can be connected (eg, networked) to other communication devices. In a networked deployment, in a server-client network environment, the communication device 400 can operate as a server communication device, a client communication device, or both. In one example, in a peer-to-peer (P2P) (or other distributed) network environment, the communication device 400 can act as a peer-to-peer communication device. The communication device 400 can be UE, eNB, PC, tablet PC, STB, PDA, mobile phone, smart phone, Internet application, network router, switcher Or a bridge, or any communication device capable of executing instructions (sequentially or otherwise) (the instructions specify the actions performed by that communication device). Furthermore, when only a single communication device is shown, the term "communication device" will also be used to include any set of communication devices that execute one group (or groups) of commands individually or in combination. To implement any one or more of the methods discussed in this article, such as cloud computing, software as a service (SaaS), and other computer cluster configurations.

Examples as described herein may include logic or many components, modules, or mechanisms, or may operate on them. A module is a tangible entity (for example, hardware) that can perform specified operations and can be configured or configured in a specific manner. In one example, in a specified manner, the circuit can be configured (for example, internally, or related to external entities such as other circuits) as a module. In one example, all or part of one or more computer systems (e.g., stand-alone client or server computer systems) or one or more hardware processors can be implemented by firmware or software (e.g., command , Application part, or application) to configure a module as an operation to perform a specified operation. In one example, the software may exist on a communication device readable medium. In one example, when the software is executed by the basic hardware of the module, it causes the hardware to perform a specified operation.

Correspondingly, the term "module" is understood to cover tangible entities, which are through physical structure, specific configuration (for example, hardware), or temporary (for example, temporary) configuration (for example, program It is an entity that operates or performs part or all of any operation described in this article in a specified manner. Consider the case where the modules are temporarily configured, and each of these modules does not need to be instantiated at any time in time. For example, in the module contains the use Where the general-purpose hardware processor is configured by software, the general-purpose hardware processor can be configured as different modules at different times. The software can configure the hardware processor accordingly, for example, to form a specific module at the same point in time and form different modules at different points in time.

The communication device (for example, a computer system) 400 may include a hardware processor 402 (for example, a central processing unit (CPU), a graphics processing unit (GPU), a hardware processor core, or any combination thereof), a main memory 404, And the static memory 406, some or all of which can communicate with each other via an intranet connection (for example, a bus) 408. The communication device 400 may further include a display unit 410, a text input device 412 (for example, a keyboard), and a user interface (UI) navigation device 414 (for example, a mouse). In an example, the display unit 410, the input device 412, and the UI navigation device 414 may be a touch screen display. The communication device 400 may additionally include a storage device (for example, a driving unit) 416, a signal generating device 418 (for example, a speaker), a network interface device 420, and one or more sensors 421 (such as a global positioning system (GPS)) Sensor, compass, accelerometer, or other sensor). The communication device 400 may include an output controller 428, such as serial (for example, universal serial bus (USB)), parallel, or other wired or wireless connections (for example, infrared (IR), near field communication (NFC), etc.) , To communicate or control one or more peripheral devices (for example, printers, card readers, etc.).

The storage device 416 may include a communication device readable medium 422 on which one or more sets of data structures or commands 424 (for example, software) are stored. These data structures or commands are derived from the techniques or functions described in this document. Implemented or utilized by any one or more of them. When executed by the communication device 400 During this period, the instruction 424 may also exist completely or at least partially in the main memory 404, the static memory 406, or the hardware processor 402. In an example, one or any combination of the hardware processor 402, the main memory 404, the static memory 406, or the storage device 416 may constitute a communication device readable medium.

Although the communication device readable medium 422 is shown as a single medium, the term "communication device readable medium" may include a single medium or multiple media configured to store one or more commands 424 (For example, centralized or distributed databases, and/or related caches and servers).

The term "communication device readable medium" may include instructions capable of storing, encoding, or transporting instructions for execution by the communication device 400 and causing the communication device 400 to implement any one or more of the disclosed technologies. Or any medium capable of storing, encoding, or transporting the data structure used by or related to these instructions. Non-limiting examples of readable media for communication devices may include solid-state memory, and optical and magnetic media. Specific examples of readable media for communication devices may include: non-volatile memory, such as semiconductor memory devices (for example, electrically programmable read-only memory (EPROM), electrically erasable programmable read-only memory) (EEPROM) and flash memory devices; magnetic disks, such as internal hard disks and removable disks; magneto-optical disks; random access memory (RAM); and CD-ROM and Only read-bit multi-purpose compact disc (DVD-ROM) disks. In some examples, the communication device readable medium may include a non-transitory communication device readable medium. In some examples, the communication device readable medium may include a communication device readable medium that is not a transient propagating signal.

Utilize any of many transmission protocols (for example, frame relay, Internet Protocol (IP), Transmission Control Protocol (TCP), User Datagram Protocol (UDP), Hyper File Transfer Protocol (HTTP), etc.), The command 424 can be further transmitted or received on the communication network 426 using the transmission medium via the network interface device 420. Example communication networks may include local area networks (LAN), wide area networks (WAN), packet data networks (for example, the Internet), mobile phone networks (for example, cellular networks), and traditional telephone (POTS) networks And wireless data networks (for example, the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard family known as Wi-Fi®, the IEEE802.16 standard family known as WiMax®), IEEE802.15.4 standard family, long-term evolution (LTE ) Standard family, Universal Mobile Communication System (UMTS) standard family, Peer-to-Peer (P2P) network, and others. In one example, the network interface device 420 may include one or more physical sockets (for example, Ethernet, coaxial, or telephone sockets) or one or more antennas to connect to the communication network 426. In an example, the network interface device 420 may include a plurality of antennas for wireless communication using at least one of single-input multiple-output (SIMO), MIMO, or multiple-input single-output (MISO) technologies. In some examples, the network interface device 420 may use multi-user MIMO technology for wireless communication. The term "transmission medium" will be used to include any intangible media capable of storing, encoding, or transporting commands executed by the communication device 400, and including digital or analog communication used to facilitate the communication of this software Signal or other intangible media.

In addition to the various types of MIMO that can be used by 5G systems, 5G systems may also use high frequency bands (centimeter wave and millimeter wave) for communication between eNB and UE (or UE to UE) because these wavelengths can provide Broader bandwidth to support future integrated communication systems. Due to the combination of MIMO, the use of high frequency bands can reduce the amount of strain on multiple networks due to increased bandwidth availability. In order to use high-frequency bands for communication, the gain-forming MIMO beam can compensate for potentially severe path loss caused by atmospheric attenuation in these higher frequency bands, as well as improve the signal-to-noise ratio (SNR) and enlarge the coverage area. By aiming a specific transmission beam at the target UE, the radiated energy can be concentrated for higher energy efficiency, and mutual UE interference can be suppressed.

However, in a MIMO system, the UE can select the best beam among the plurality of beams transmitted by the eNB for receiving various signals, and use the direction indicated by the best beam to transmit the signal to the eNB. Although it would be desirable for the eNB to know which beam is best for communicating with the UE, unfortunately, this information may not be available to the eNB. That is, the eNB may not know which beam is being used by the UE, and therefore which direction is used to receive the scheduling request (SR). The eNB can therefore scan all directions of all beams, causing the UE to repeatedly transmit SR many times (at least equal to the number of beams). This can be exacerbated when multiple eNBs (such as LTE eNB and 5G eNB) provide different services to the UE and when the UE has a relatively high mobility rate, so that the optimal beam can change relatively quickly (e.g., the UE at least Move in a few (for example, 30) km per hour). To avoid this situation, a specific SR or 5G physical random access channel (xPRACH) can be used to enable 5G via the UE Data transfer. Specifically, the SR in the LTE link can be used for the uplink request in the 5G link for non-independent deployment, and the xPRACH can be used in the independent deployment, as explained in the following multiple embodiments .

Figure 5 illustrates an uplink request design for a non-standalone LTE system according to some embodiments. As shown in the figure, the 5G system includes UE502 communicating with LTE eNB504 and 5G eNB506. UE502, LTE eNB504, and 5G eNB506 can be shown in FIGS. 1 to 4. The LTE eNB 504 and the 5G eNB 506 can be connected via the X2 interface, so that the information provided from the UE 502 to the LTE eNB 504 can be forwarded to the 5G eNB 506 as desired. In some embodiments, by using dedicated resources on the LTE link to transmit the SR to the LTE eNB 504, the UE 502 can start the 5G uplink scheduling procedure. SR can be used to request uplink resources on 5G links.

Similar to the above, different physical uplink channels may include physical uplink control channel (PUCCH) or 5G PUCCH (xPUCCH) (for convenience, hereinafter referred to as xPUCCH), which is used by UE502 to transmit uplink Channel control information (UCI) to LTE eNB504 or 5G eNB506, and request physical uplink shared channel (PUSCH) or 5G PUSCH (xPUSCH) (for convenience, hereinafter referred to as xPUSCH) to provide uplink data to LTE eNB504 or 5G eNB506. The xPUCCH can be mapped to the UL control channel resource defined by the orthogonal mask and two resource blocks (continuous in time, potentially jumping on the boundary between adjacent slots). xPUCCH can take many different formats, and UCI contains information based on that format. Specifically, xPUCCH may contain SR, which is used by the UE to request resources to transmit uplink data using PUCCH format 1. xPUCCH can also contain acknowledgement response/retransmission request (ACK/NACK) or channel quality indicator (CQI)/channel status information (CSI). CQI/CSI can indicate the estimated value of the existing downlink channel condition seen by UE502 to LTE eNB504 or 5G eNB506 to assist channel-dependent scheduling, and can include MIMO-related feedback (e.g., precoder matrix indication, PMI).

As shown in FIG. 5, in operation 512, the UE 502 may use dedicated SR resources to request resources. The dedicated SR resource can be configured by the LTE eNB504 or 5G eNB506 through the previous radio resource control (RRC) signal transmission with the UE502. UE502 can be configured with only one SR resource (for 5G link) or with two SR resources (one for uplink request in LTE link and the other for uplink for 5G link) request). The dedicated resources may be UE-specific and may be related to the resource allocation index. Resources may have one or more of dedicated time, frequency, or code allocation.

After successfully detecting the SR, in operation 514, the LTE eNB 504 may transmit a PDCCH formed according to a DCI format that contains an uplink grant for beam related information. Specifically, the LTE eNB 504 can allocate uplink resources for the UE 502 to transmit a buffer status report (BSR) in the LTE link. Although not shown, at this point, the LTE eNB 504 may indicate to the 5G eNB 506 that the UE 502 wants uplink grant on the X2 interface, or may wait until the 5G eNB 506 is notified later.

As shown in FIG. 5, the UE 502 can receive the uplink resource allocation from the LTE eNB 504. In operation 516, the UE 502 may responsively transmit the BSR on the PUSCH in the allocated uplink resources, which is in the media access control system. It is transported in the MAC protocol data unit (PDU). The MAC PDU can be used to inform the eNB of the amount of data in the buffer of the UE to be transmitted. In addition to the BSR, the UE 502 can use allocated resources to report 5G beam measurements. The 5G beam measurement may allow the 5G eNB 506 to use the appropriate beam in the 5G link to transmit signals. The 5G beam measurement may include the information of the best beam from the 5G eNB 506 received by the UE 502 obtained from the beam reference signal (BRS), or the BRS received power (BRS-RP) measurement performed by the UE 502. The best beam can be expressed as a unique identifier that associates the beam with a known transmission point on the network. The UE 506 can continuously monitor the periodic beam transmission (reference signal) by the 5G eNB 506 for this measurement.

When the LTE eNB 504 uses the LTE link to receive the BSR and 5G beam measurement reports, the LTE eNB 504 can determine the appropriate location and, in some embodiments, the best beam. Alternatively, the LTE eNB 504 may provide the 5G beam measurement report information to the 5G eNB 506 on the X2 interface, so that the 5G eNB 506 can determine the appropriate allocation and/or the best beam. In operation 518, the 5G eNB 506 may use the best beam to transmit the xPDCCH using the 5G link. The xPDCCH may contain an uplink grant for transmitting uplink data on the 5G link. In particular, based on the BSR information, as indicated by the UE 502, the 5G eNB 506 can allocate appropriate resources and modulation and coding schemes (MCS) included in the uplink grant for uplink data.

After receiving the uplink grant, the UE 502 can use the 5G link to transmit uplink data on the xPUSCH 520. Therefore, although the SR and BSR/5G beam reports are initially transmitted on the LTE link, the UE 502 can receive the allocation and transmit data on both of the 5G links.

Figure 6 illustrates another uplink request design for a non-standalone LTE system according to some embodiments. As shown in the figure, the 5G system includes UE 602 communicating with LTE eNB 604 and 5G eNB 606. UE 602, LTE eNB 604, and 5G eNB 606 may be shown in FIGS. 1 to 4, and may operate in a manner similar to the same entity in FIG. 5. In some embodiments, by using dedicated resources on the LTE link to transmit the SR to the LTE eNB 604, the UE 602 can initiate the 5G uplink scheduling procedure. SR can be used to request uplink resources on 5G links. However, unlike the embodiment of FIG. 5, resources for BSR can be allocated using 5G links. In this case, the beam alignment between the 5G eNB 606 and the UE 602 may already exist.

Similar to the above, in operation 612, the UE 602 may use dedicated SR resources to request resources. The dedicated SR resources can be configured by the LTE eNB 604 or 5G eNB 606 via RRC signal transmission with the UE602. UE602 can be configured with only one SR resource (for 5G link) or two SR resources, one for uplink request in LTE link, and the other for 5G link Uplink request.

After successfully detecting the SR, the LTE eNB 604 can determine that 5G resources are desirable, and provide this information to the 5G eNB 606 on the X2 interface. However, unlike the embodiment shown in FIG. 5, the LTE eNB 504 may not perform further actions. In operation 614, the 5G eNB 606 may transmit an xPDCCH formed according to a DCI format that contains an uplink grant for beam related information. The 5G eNB 606 already has information about the best beam for communication with the UE602. For example, the 5G eNB 606 can be used for a predetermined amount of time (which can be based on UE602 mobile rate) determined or provided beam information. The 5G eNB 606 can allocate uplink resources for the UE 602 to transmit the BSR in the 5G link. In some embodiments, the 5G eNB 606 may allocate additional uplink resources for the UE 602 to transmit the 5G beam measurement report in the 5G link to update the information. The 5G eNB 606 can use the best beam to transmit this information to the UE 602.

The UE 602 may receive the uplink resource allocation from the 5G eNB 606. In operation 616, the UE 602 can responsively transmit the BSR to the 5G eNB 606 with the allocated uplink resources on the 5G link. In this case, because the 5G eNB 606 can know the best beam for communicating with the UE 602, the UE 602 can avoid transmitting 5G measurement reports, and therefore, fewer resources can be allocated by the 5G eNB 606 and used by the UE 602.

When the 5G link is used to receive the BSR by the 5G eNB 606, in operation 618, the 5G eNB 606 may use the optimal beam to transmit the xPDCCH using the 5G link. The xPDCCH may contain an uplink grant for transmitting uplink data. Based on the BSR information, appropriate resources and MCS can be allocated by the 5G eNB 606 in the uplink grant transmitted by the 5G eNB 606.

After receiving the uplink grant, the UE 602 can use the 5G link to transmit uplink data on the xPUSCH 620. Therefore, although the SR is initially transmitted on the LTE link, the UE 602 can then communicate with the 5G eNB 606 to send BSR, receive allocation, and transmit data on the 5G link.

FIG. 7 illustrates another uplink request design for a non-standalone LTE system according to some embodiments. The 5G system includes UE 702 communicating with LTE eNB 704 and 5G eNB 706. UE702, LTE eNB 704, and 5G eNB 706 may be shown in FIGS. 1 to 4 and perform at least some of the same functions as the similar devices in FIGS. 5 and 6. In some embodiments, by transmitting the SR to the LTE eNB 704, the UE 702 can initiate the 5G uplink scheduling procedure. SR can be used to request uplink resources for the 5G link. However, unlike the embodiment shown in FIG. 5 or FIG. 6, the SR in the embodiment shown in FIG. 7 may not be transmitted using resources dedicated to 5G uplink data transmission requests.

That is, in operation 712, the UE 702 may use non-dedicated SR resources to request resources for uplink transmission of data using the 5G link. In this case, the UE 702 may only be configured with one SR resource, which is used for the LTE link. Although non-dedicated SR resources are being used, a new logical channel ID (LCID) in the MAC layer can be defined for the UE 702 to request uplink resources in the 5G link. The LCID can be used to distinguish whether the uplink request is for the LTE link or the 5G link. The UE 702 can therefore use the LCID for SR transmission in the LTE link to indicate that 5G resources are being requested. LCID can be defined according to 3GPP technical specification 36.321.

That is, the MAC header may have a variable size (in octets as a unit) and include an LCID, a length field, a format field, and an extension field. The length field can indicate the length (in bytes) of the corresponding MAC SDU or variable-size MAC control element. The format field can indicate the size of the length field. The extended field can indicate whether there are further fields appearing in the MAC header. LCID (5 bits) can identify the logic of the corresponding MAC SDU The channel situation, or the type of the corresponding MAC control element, or the filling of DL-SCH, UL-SCH, and MCH respectively.

After successfully detecting the SR, the LTE eNB 704 can extract the LCID and determine that the UE 702 is requesting 5G resources. In operation 714, the LTE eNB 704 may thus transmit to the 5G eNB 706 the PDCCH containing the uplink grant for beam related information. The LTE eNB 704 can allocate uplink resources for the UE 702 to transmit beam related information in the LTE link.

The UE 702 can receive the uplink resource allocation from the LTE eNB 704 and act accordingly. In particular, in operation 716, the UE 702 may transmit BSR and 5G beam measurements on the PUSCH in the allocated uplink resources. As mentioned above, the 5G beam measurement may include the information of the best beam received by the UE702 obtained from the BRS, or the BRS-RP measurement performed by the UE702. In addition to the SR in operation 712 (or instead of the SR in operation 712), BSR and 5G beam reporting may use LCID. Specifically, a corresponding MAC control element may be defined, which may include a 5G beam measurement report. This MAC control element can be transmitted in operation 716, in the LTE RACH procedure, or transmitted together with the BSR for the uplink data transmission triggered by the SR in operation 712.

When the 5G beam measurement report is received by the LTE eNB 704 via the LTE link, similar to FIG. 5, the LTE eNB 704 may indicate that the 5G eNB 706 wants to allocate the resource request for the 5G link to the UE 702, and may Either or both of BSR and/or 5G beam reports are provided via the X2 interface. The 5G eNB 706 may subsequently determine the best beam, and use the best beam in operation 718 to transmit the xPDCCH using the 5G link. The xPDCCH may contain an uplink grant for transmitting uplink data. As above, based on BSR Information, the 5G eNB 706 can allocate appropriate resources and MCS based on the BSR and included in the uplink grant for the uplink data.

After receiving the uplink grant, the UE 702 can use the 5G link to transmit the uplink data on the xPUSCH 720. As in FIGS. 5 and 6, in FIG. 7, although the SR and BSR/5G beam reports are initially transmitted on the LTE link, the UE702 can receive the allocation and transmit data on both of the 5G links.

FIG. 8 illustrates another uplink request design for a non-standalone LTE system according to some embodiments. The 5G system may include UE 802 communicating with LTE eNB 804 and 5G eNB 806. UE 802, LTE eNB 804, and 5G eNB 806 can be shown in FIGS. 1 to 4. As in the above embodiment, by transmitting the SR for uplink resources on the 5G link to the LTE eNB 804, the UE 802 can start the 5G uplink scheduling procedure. In operation 812, the UE 802 may use non-dedicated SR resources to request resources.

Unlike the previous embodiment, instead of transmitting resources for BSR and perhaps 5G beam measurement reports, in operation 814, the LTE eNB 804 may responsively transmit the PDCCH sequence for the contention-free RACH procedure on the 5G link. Specifically, the LTE eNB 804 may transmit an xPRACH transmission with a designated pre-signature to indicate a contention-free RACH procedure. Similar to the PDCCH containing resources for BSR, the PDCCH sequence can be transmitted on the LTE link. The pre-index indicating xPRACH transmission may be a predetermined pre-index (for example, a single pre-index defined for xPRACH) or may be selected from a group of pre-indexes indicating xPRACH transmission. The pre-index group ID can be obtained from the previous BRS-RP measurement result. Used to indicate the pre-index or pre-index The information about the set index group ID and the sequence used to transmit xPRACH can be sent by the UE802 through the RRC signal before the SR is transmitted.

In some embodiments, the xPDCCH sequence can be transmitted via the 5G link by the 5G eNB806 instead of via the LTE link via the LTE eNB804. Before the xPDCCH containing the xPRACH sequence is transmitted, it is used for the SR of the 5G link. The information is provided on the X2 interface from LTE eNB804 to 5G eNB806. Furthermore, in some embodiments, if the PDCCH (or xPDCCH) sequence is not received within the time window configured by RRC or other high-level signaling, the UE 802 can determine that the SR has expired or is not received by the LTE eNB 804. And send another SR. The expiration period may depend on the type of UE (UE priority), the data to be transmitted by the UE 802 (data priority), such as the network load measured by interference, and other factors.

The UE 802 can decode the xPDCCH sequence for initiating the contention-free RACH procedure via the 5G link. In operation 816, the UE 802 may transmit xPRACH to the 5G eNB 806. The UE 802 can select one of the random access radio network temporary identifier (RA-RNTI) that can be determined by the number of time slots for the RACH preamble and the self-transmission preamble.

When receiving the xPRACH, the 5G eNB 806 may subsequently perform beam scanning based on the xPRACH to determine the best beam. The 5G eNB 806 may use the best beam to transmit xPDCCH using the 5G link in operation 818. The xPDCCH may contain an uplink grant for transmitting uplink data. As above, based on BSR information, 5G eNB806 can be allocated Include the appropriate resources and MCS in the uplink grant for the uplink data.

After receiving the uplink grant, the UE 802 can use the 5G link to transmit uplink data on the xPUSCH 820. In some embodiments, the UE 802 may also transmit a BSR with uplink data.

Figure 9 illustrates an uplink request design for a standalone LTE system according to some embodiments. The 5G system includes UE902 communicating with 5G eNB904. UE902 and 5G eNB904 can be shown in Figures 1 to 4. Generally speaking, as discussed above, for 5G systems, repeated xPRACH transmissions can be used to ensure stable detection using beam scanning by the 5G eNB. Similar to the aforementioned non-independent embodiment (where SR can be applied to indicate a request to provide uplink data via a 5G link), in a separate embodiment, the xPRACH can be utilized by the UE 902 to obtain uplink synchronization.

Similar to some of the above embodiments, by transmitting the xPRACH for uplink resources on the 5G link to the 5G eNB 904, the UE 902 can start the 5G uplink contention-free scheduling procedure. As shown, in operation 912, the UE 902 may use dedicated xPRACH resources to request uplink data resources. Information about xPRACH can be transmitted to UE 902 via RRC or other higher-level signaling. Because the number of users in a 5G unit may be limited, allocating one or more dedicated xPRACH resources for a resource request can avoid introducing dedicated SR channels for 5G systems. The UE 902 can select one of several available xPRACH preambles and a random access radio network temporary identifier (RA-RNTI) determined from the number of time slots when the preamble is sent.

One or more of time division multiplexing (TDM), frequency division multiplexing (FDM), or code division multiplexing (CDM) can be used to multiplex xPRACH resources for SR and for random access. The configuration of the xPRACH resource for SR can be configured via RRC signal transmission from the anchored LTE unit or 5G unit. In one embodiment, the frequency resource and sequence group of xPRACH used for random access can be mapped to the frequency resource and sequence group of BRS one-to-one. Additional resources can be allocated to xPRACH for SR, such as the n+1th subframe, where n is the subframe index of xPRACH for random access. In another embodiment, the dedicated xPRACH pre-signature can be used for SR UE-specific allocation (for example, RRC signaling).

The 5G eNB904 can detect xPRACH. In response, in operation 914, the 5G eNB 904 may transmit the xPDCCH with the uplink grant via the 5G link. xPDCCH may contain resources for BSR and possibly 5G beam reporting. However, unlike the conventional RACH procedure, which responds to xPRACH, xPDCCH can contain a reduced random access response (RAR). Generally speaking, the full RAR can be addressed as RA-RNTI, and in addition to the uplink grant resources, it can also contain a temporary cellular radio network temporary identifier (C-RNTI) and timing advance value to compensate for the difference between UE902 and 5G eNB904 The round-trip delay between. In some embodiments, alternative full RAR information, such as timing advance and C-RNTI, may be known before xPRACH is transmitted, such as via RRC_CONNECTED message. Therefore, the 5G eNB 904 can avoid transmitting this information to save management burden and simplify the procedure. Furthermore, because the C-RNTI can be known by the UE902, the reduction carried in the xPDCCH RAR messages can be stirred using C-RNTI in cyclic redundancy check (CRC).

When receiving the xPDCCH in operation 914, the UE 902 may decode the xPDCCH and determine resource allocation. In operation 916, the UE 902 may subsequently transmit the BSR and/or 5G beam measurement report to the 5G eNB 904 using the 5G link.

When receiving the xPRACH, the 5G eNB 904 may subsequently perform beam scanning based on the xPRACH to determine the best beam for communication with the UE 902. In operation 918, the 5G eNB 904 may use the optimal beam to transmit the xPDCCH using the 5G link. The xPDCCH may contain an uplink grant for transmitting uplink data. As mentioned above, based on the BSR information, the 5G eNB 904 can allocate appropriate resources and MCS included in the uplink grant for uplink data.

After receiving the uplink grant, in operation 920, the UE 902 may transmit uplink data on the xPUSCH. The uplink data can be transmitted to the 5G eNB904 using the 5G link.

Figure 10 illustrates another uplink request design for a standalone LTE system according to some embodiments. The 5G system may include UE1002 communicating with 5G eNB1004. UE1002 and 5G eNB1004 can be shown in Figures 1 to 4. In this embodiment, a contention-free xPRACH procedure with fast uplink access is introduced.

By transmitting the xPRACH for uplink resources on the 5G link to the 5G eNB 1004 in operation 1012, the UE 1002 can start the 5G uplink contention-free scheduling procedure. xPRACH can be transmitted with BSR (and perhaps 5G beam measurement report). UE1002 can use dedicated xPRACH resources, To request uplink data resources. Information about xPRACH can be transmitted to UE 1002 via RRC or other higher-level signaling.

The 5G eNB1004 can detect the xPRACH and perform beam scanning based on the xPRACH to determine the best beam for communication with the UE1002. In operation 1014, the 5G eNB 1004 may transmit the xPDCCH with the uplink grant via the 5G link for transmission of uplink data. The xPDCCH may contain reduced RAR information, as in FIG. 9. The xPDCCH may contain an uplink grant. As mentioned above, based on the BSR information, the 5G eNB 1004 can allocate appropriate resources and MCS included in the uplink grant for uplink data.

After receiving the uplink grant, in operation 1016, the UE 1002 may transmit uplink data on the xPUSCH. The uplink data can be transmitted to the 5G eNB1004 using the 5G link. Since the number of messages between the UE 1002 and the 5G eNB 1004 is reduced compared to FIG. 9, the uplink access delay can also be substantially reduced.

Example 1 is a user equipment (UE) device including a processing circuit configured to generate a message indicating that uplink data is to be transmitted to a fifth generation (5G) evolved node B (eNB), The message depends on which of a Long Term Evolution (LTE) eNB and 5G eNB the message will be transmitted to; after the message is transmitted, a selected beam will contain a 5G uplink grant received from the 5G eNB A 5G physical downlink control channel (xPDCCH) decodes, the 5G uplink grant includes resources allocated for transmitting the uplink data to the 5G eNB; and for transmitting to the 5G eNB using the resources, generates A 5G physical uplink shared channel (xPUSCH) containing the information.

In Example 2, the subject of Example 1 optionally includes that the message includes a scheduling request, and the scheduling request is sent to the LTE eNB.

In Example 3, the subject matter of Example 2 optionally includes that the processing circuit is further configured to generate the scheduling request for transmission via a dedicated resource.

In Example 4, the subject matter of Example 3 optionally includes that the processing circuit is further configured to: in response to the transmission of the scheduling request, decode an uplink grant from the eNB, based on the transmission from the LTE eNB and the 5G eNB Which one receives the uplink grant, transmits at least one of a buffer status report (BSR) and a 5G beam measurement report to the eNB, and the 5G beam measurement includes acquisition from a beam reference signal (BRS) An identity of the selected beam and at least one of a BRS received power (BRS-RP) measurement of one of the selected beams.

In Example 5, the subject matter of Example 4 optionally includes the processing circuit being further configured to: respond to the reception of the uplink grant from the LTE eNB, generate the BSR and the 5G beam measurement report, and respond to the BSR and The transmission of the 5G beam measurement report generates the reception of the PDCCH.

In Example 6, the subject matter of any one or more of Examples 4 to 5 optionally includes that the processing circuit is further configured to: in response to receiving the uplink grant from the 5G eNB, generate the BSR, and respond to The transmission of the BSR and the transmission of the 5G beam measurement report generate at least one of the reception of the xPDCCH.

In Example 7, the subject matter of any one or more of Examples 2 to 6 optionally includes the processing circuit being further configured to: generate a non-dedicated The scheduling request of the resource; and in response to the transmission of the scheduling request, decode an uplink grant from the LTE eNB to transmit a buffer status report (BSR) and a 5G beam measurement report to the LTE eNB, the 5G beam measurement includes at least one of an identity of the selected beam obtained from a beam reference signal (BRS) and a BRS received power (BRS-RP) measurement of one of the selected beams.

In Example 8, the subject of Example 7 optionally includes the processing circuit being further configured to: in response to the reception of the uplink grant, generate the BSR and the 5G beam measurement report, the report using a logical channel identification ( LCID) is used for the transmission of resource allocation requests to the 5G eNB, the LCID is used to provide differentiation between an uplink request for the LTE eNB and the 5G eNB, in response to the BSR and the 5G beam measurement The transmission of the report results in the reception of the PDCCH.

In Example 9, the subject matter of any one or more of Examples 2 to 8 optionally includes the processing circuit being further configured to: generate the scheduling request for a non-dedicated resource; and respond to the scheduling request Transmit and decode a PDCCH from the LTE eNB, the PDCCH including a request for the UE to perform a contention-free random access channel program with the 5G eNB; and in response to the reception of the PDCCH, generate a request for transmission A 5G physical random access channel (xPRACH) designated by a pre-signature of the 5G eNB, in response to the transmission of the xPRACH, generates the reception of the xPDCCH.

In Example 10, the subject of Example 9 optionally includes a pre-index whose designated pre-signature is included in a pre-index group, and the pre-index The group identity is obtained by measuring the beam reference signal received power (BRS-RP) of one of the selected beams.

In Example 11, the subject matter of any one or more of Examples 9 to 10 optionally includes that the xPDCCH includes a reduced random access response (RAR) free from a timing advance and a temporary cellular radio network temporary identifier ( C-RNTI) and stirred by the C-RNTI in a cyclic redundancy check (CRC).

In Example 12, the subject matter of any one or more of Examples 1 to 11 optionally includes that the message includes a 5G physical random access channel (xPRACH) for transmission via a dedicated resource.

In Example 13, the subject matter of Example 12 optionally includes the processing circuit being further configured to: in response to the xPRACH and the transmission from the 5G eNB, decode an uplink grant to send a buffer status report (BSR) A 5G beam measurement report is transmitted to the 5G eNB, and the 5G beam measurement includes an identity of the selected MIMO beam obtained from a beam reference signal (BRS) and a BRS received power of one of the selected beams (BRS-RP) at least one of the measurements; and in response to the reception of the uplink grant, generate the BSR and the 5G beam measurement report, and in response to the transmission of the BSR and the 5G beam measurement report, generate the xPDCCH receive.

In Example 14, the subject matter of any one or more of Examples 12 to 13 optionally includes that the message includes an xPRACH and a buffer for transmission via a dedicated resource in response to the reception of the xPDCCH transmitted by the message Status report (BSR).

In Example 15, the subject matter of any one or more of Examples 1 to 14 optionally includes that the processing circuit includes a baseband circuit configured to receive data from the LTE eNB transmitted via a radio resource control (RRC) signal. , An uplink dedicated LTE resource used to transmit an uplink request from the LTE eNB, and an uplink dedicated 5G resource used to transmit an uplink request to the 5G eNB, determined to be used in the uplink The message is transmitted on one of the link dedicated LTE resource and the uplink dedicated 5G resource.

In Example 16, the subject matter of any one or more of Examples 1 to 15 optionally includes, and further includes: an antenna configured to provide communication between the UE and the eNB.

Example 17 is an evolved Node B (eNB) device including a processing circuit configured to: in order to transmit via radio resource control (RRC) signaling, generate an uplink request for transmitting an uplink request to a long-term One of an uplink dedicated LTE resource of an evolved (LTE) eNB and an uplink dedicated fifth generation (5G) resource for transmitting an uplink request to a 5G eNB; and One of the decoding of a message sent on one of the dedicated LTE resource and the uplink dedicated 5G resource, the message indicating that the uplink data is to be sent to the 5G eNB, and the message includes a scheduling request (SR) and a One of the 5G physical random access channels (xPRACH), the message depends on which of the LTE eNB and the 5G eNB the message is to be transmitted to.

In Example 18, the subject matter of Example 17 optionally includes that the eNB includes the LTE eNB, and the processing circuit is further configured to: respond to Receipt of the scheduling request for the uplink dedicated LTE resource generates an uplink grant to transmit at least one of a buffer status report (BSR) and a 5G beam measurement report, the 5G beam measurement Including at least one of acquiring an identity of a selected beam from a beam reference signal (BRS) and a BRS received power (BRS-RP) measurement of one of the selected beams; and the transmission granted on the uplink Afterwards, the BSR and the 5G beam measurement report are decoded.

In Example 19, the subject matter of any one or more of Examples 17 to 18 optionally includes that the eNB includes the 5G eNB, and the processing circuit is further configured to: transmit in response to the use of the uplink dedicated LTE resource The scheduling request generates an uplink grant to transmit at least one of a buffer status report (BSR) and a 5G beam measurement report. The 5G beam measurement includes information obtained from a beam reference signal (BRS) At least one of an identity of a selected beam and a BRS received power (BRS-RP) measurement of one of the selected beams; after the uplink grant transmission, decode the BSR; and generate A 5G physical downlink control channel (xPDCCH) for transmitting a 5G uplink grant on the selected beam, the 5G uplink grant including the resources allocated for the transmission of the uplink data.

In Example 20, the subject matter of any one or more of Examples 17 to 19 optionally includes that the eNB includes the LTE eNB, and the processing circuit is further configured to: respond to the queue via the uplink dedicated LTE resource Receipt of the request, generate an uplink grant to transmit a buffer status report (BSR) and a 5G beam measurement report, the 5G beam measurement packet Including at least one of acquiring an identity of a selected beam from a beam reference signal (BRS) and a BRS received power (BRS-RP) measurement of one of the selected beams; and the transmission granted on the uplink Then, decode the BSR and the 5G beam measurement report. The BSR and the 5G beam measurement report include a logical channel identification (LCID) for transmitting a resource allocation request, and the LCID is used for the LTE eNB Differentiation from an uplink request of the 5G eNB.

In Example 21, the subject matter of any one or more of Examples 17 to 20 optionally includes that the eNB includes the 5G eNB, and the processing circuit is further configured to: After transmission of a requested PDCCH of a contention-free random access channel program and in response to the reception of the scheduling request via a non-dedicated resource from the LTE eNB, decode a 5G entity random memory with a designated pre-signature Take the channel (xPRACH), the xPDCCH includes a reduced random access response (RAR) and a temporary cellular radio network temporary identifier (C-RNTI) free from a timing advance and is determined by a cyclic redundancy check (CRC) And generate a 5G physical downlink control channel (xPDCCH) containing a 5G uplink grant for transmission on a selected beam.

In Example 22, the subject matter of any one or more of Examples 17 to 21 may optionally include that the eNB includes the 5G eNB, and the processing circuit is further configured to: respond to the random storage of a 5G entity via the dedicated 5G resource. Get the reception of the channel (xPRACH), generate an uplink grant to transmit a buffer status report (BSR) and a 5G beam measurement report, the 5G The beam measurement includes at least one of an identity of the selected beam obtained from a beam reference signal (BRS) and a BRS received power (BRS-RP) measurement of one of the selected beams; grants in the uplink After the transmission, decode the BSR and the 5G beam measurement report; and generate a 5G physical downlink control channel (xPDCCH) containing a 5G uplink grant for transmission on a selected beam.

In Example 23, the subject matter of any one or more of Examples 17 to 22 optionally includes that the eNB includes the 5G eNB, and the processing circuit is further configured to: respond to a 5G via the uplink dedicated 5G resource The reception of a physical random access channel (xPRACH) and a buffer status report (BSR) generates a 5G physical downlink control channel (xPDCCH) containing a 5G uplink grant for transmission on a selected beam ).

In Example 24, it is a computer-readable storage medium that stores instructions executed by one or more processors of a user equipment (UE), and the one or more processors configure the UE to: For transmitting an uplink request to an uplink dedicated LTE resource of a Long Term Evolution (LTE) Evolved Node B (eNB) and for transmitting an uplink request to a 5G eNB, an uplink dedicated fifth Generation (5G) resources; generate one of a scheduling request (SR) and a 5G physical random access channel (xPRACH), the 5G physical random access channel indicates that the uplink data is to be sent to The 5G eNB transmits the SR and the xPRACH on one of the uplink dedicated LTE resource and the uplink dedicated 5G resource, and depends on which one of the LTE link and the 5G link is used Transmit the one of the SR and the xPRACH to select; and in the transmission After the message, decode a 5G physical downlink control channel (xPDCCH) on a selected beam from the 5G eNB that includes a 5G uplink grant including an allocation for transmission The resource of the uplink data.

In Example 25, the subject matter of Example 24 optionally includes the one or more processors further configuring the UE to perform one of the following: generating the SR for the LTE eNB, and responding to the transmission of the scheduling request , Decode an uplink grant to transmit a buffer status report (BSR) and a 5G beam measurement report, the 5G beam measurement includes a beam reference signal (BRS) obtained from the selected beam Identity and at least one of the BRS received power (BRS-RP) measurement of one of the selected beams; in response to the uplink grant reception, generate the BSR and the 5G beam measurement report, the report uses a logical channel identification (LCID) is used for the transmission of a resource allocation request for the 5G link, the LCID is used for providing differentiation between an uplink request for the LTE link and the 5G link; and decoding from the LTE A PDCCH received by the eNB, the PDCCH including a request for the UE to perform a contention-free random access channel program with the 5G eNB; and generate a 5G entity random with a designated pre-signature via the 5G link Access channel (xPRACH), the xPDCCH includes a reduced random access response (RAR) and a temporary cellular radio network temporary identifier (C-RNTI) free from a timing advance and is checked by a cyclic redundancy check (CRC) In the C-RNTI.

Example 26 is a method for scheduling user equipment (UE) data transmission. The method includes: obtaining an uplink request for transmitting an uplink request to a long At least one of an uplink dedicated LTE resource of an evolved Node B (eNB) for evolution (LTE) and an uplink dedicated fifth generation (5G) resource for transmitting an uplink request to a 5G eNB ; Generate one of a scheduling request (SR) and a 5G physical random access channel (xPRACH) to indicate that the uplink data is to be transmitted to the 5G eNB, in the uplink dedicated LTE resource and the uplink The one of the SR and the xPRACH is transmitted on one of the link dedicated 5G resources, and the selection depends on which of the LTE link and the 5G link transmits the SR and the xPRACH; in transmitting the message Then, decode a 5G physical downlink control channel (xPDCCH) from the 5G eNB on a selected beam that includes a 5G uplink grant including an allocation for transmitting the uplink Link data resources.

In Example 27, the subject matter of Example 26 optionally further includes one of the following: generating the SR for the LTE eNB, and in response to the transmission of the scheduling request, decoding an uplink grant to change a buffer status A report (BSR) and a 5G beam measurement report are transmitted. The 5G beam measurement includes an identity of the selected beam obtained from a beam reference signal (BRS) and a BRS received power of one of the selected beams ( BRS-RP) at least one of the measurements; in response to the reception of the uplink grant, generate the BSR and the 5G beam measurement report, the report uses a logical channel identification (LCID) for resource allocation request to the 5G link The LCID is used to provide differentiation between an uplink request for the LTE link and the 5G link; and to decode a PDCCH received from the LTE eNB, and the PDCCH includes a method for enabling the UE Perform random storage with one of the 5G eNBs without contention Fetch a request of the channel program; and generate a 5G physical random access channel (xPRACH) with a designated pre-signature via one of the 5G links, the xPDCCH including a reduced random access response (RAR) free from a timing advance ) And the temporary cellular radio network temporary identifier (C-RNTI) and are stirred by the C-RNTI in a cyclic redundancy check (CRC).

Example 28 is a user equipment (UE), which includes: obtaining an uplink dedicated LTE resource for transmitting an uplink request to a Long Term Evolution (LTE) Evolved Node B (eNB), and A component used to transmit an uplink request to at least one of a 5G eNB's uplink dedicated fifth generation (5G) resource; used to generate a scheduling request (SR) and a 5G physical random access channel ( xPRACH) to indicate that the uplink data is to be transmitted to the 5G eNB, and the one of the SR and the xPRACH is transmitted on one of the uplink dedicated LTE resource and the uplink dedicated 5G resource , And a member selected according to which of the LTE link and the 5G link transmits the SR and the xPRACH; and for transmitting the message on a selected beam from the 5G The eNB includes a 5G physical downlink control channel (xPDCCH) decoding component of a 5G uplink grant that includes resources allocated for the transmission of the uplink data.

In Example 29, the subject matter of Example 28 may optionally further include the following: a means for generating the SR for the LTE eNB and responding to the transmission of the scheduling request, decoding an uplink grant to transmit a Buffer status report (BSR) and a 5G beam measurement report, the 5G beam measurement including a beam reference signal (BRS) of the selected beam Identity and at least one of the BRS received power (BRS-RP) measurement of one of the selected beams; a component for generating the BSR and the 5G beam measurement report in response to the reception of the uplink grant, the report uses A logical channel identification (LCID) is used for the transmission of resource allocation requests to the 5G link, and the LCID is used to provide differentiation between an uplink request for the LTE link and the 5G link; and The means for decoding a PDCCH received from the LTE eNB, the PDCCH including a request for the UE to perform a contention-free random access channel program with the 5G eNB; and generating a request with a designation via the 5G link A pre-signed 5G physical random access channel (xPRACH), the xPDCCH includes a reduced random access response (RAR) and a temporary cellular radio network temporary identifier (C-RNTI) that is free from a timing advance and is determined by the The C-RNTI in a cyclic redundancy check (CRC) is agitated.

Although an embodiment has been described with reference to specific example embodiments, it is obvious that various modifications and changes can be made to these embodiments without departing from the broader spirit and scope of the present disclosure. Correspondingly, the description and drawings are regarded as illustrative rather than restrictive. The drawings forming part of it show specific embodiments of the subject matter that can be implemented by way of illustration and not limitation. The illustrated embodiments have been explained in sufficient detail so that those with ordinary knowledge in the relevant technical field can implement the teachings disclosed in this article. Other embodiments can be used and obtained from it, so that structural and logical replacements and changes can be made without departing from the scope of the present disclosure. Therefore, this embodiment is not produced in a limiting sense, and the scope of multiple embodiments It is only defined by the scope of the additional patent application together with the full scope of equivalents conferred by the scope of the patent application.

Such embodiments of the subject matter may be individually and/or collectively referred to herein as the term "embodiment", which is merely for convenience and is not intended to voluntarily limit the scope of the application to any A single invention or invention concept (if more than one is actually revealed). Therefore, although specific embodiments have been illustrated and described herein, it should be understood that any configuration calculated to achieve the same purpose may be substituted for the specific embodiments shown. This disclosure is intended to cover any and all adaptations or changes of the various embodiments. The combination of the above embodiments and other embodiments that are not specifically described herein will be understood by those with ordinary knowledge in the relevant technical field when reviewing the above description.

In this document, as is common in patent documents, the term "a or an" is used to include one or more than one, which is independent of "at least one" or "one or more". more)" in any other circumstances or usage. In this document, the term "or (or)" is used to mean a non-exclusive OR, such that "A or B (A or B)" includes "A but not B (A but not B)", "B but not A (B but not A)", and "A and B(A and B)", unless otherwise instructed. In this document, the terms "including" and "in which" are used as the vernacular English equivalents of the respective terms "comprising" and "wherein". Similarly, in the scope of the following patent applications, the terms "including" and "comprising" are open-ended, that is, include those except those listed after this term in the scope of the patent application. Other components The system, UE, item, composition, expression, or process are still considered to be within the scope of the patent of this application. Moreover, in the following patent applications, the terms "first", "second", and "third" are only used as marks, and they are not intended to Their goals impose digital elements.

The abstract of this disclosure is provided in compliance with 37 C.F.R.§1.72(b), which requires an abstract that will allow readers to quickly determine the nature of this technical disclosure. It should be understood at the time of submission that it will not be used to interpret or limit the scope or meaning of the patent application. In addition, in the previous embodiments, it can be seen that in order to simplify the disclosure, multiple features are combined together in a single embodiment. The method disclosed in the present disclosure is not interpreted as reflecting the intention that the applied embodiments need more features than those clearly recorded in the scope of each patent application. On the contrary, as reflected in the scope of the following patent applications, the subject matter of the present invention is less than all the features of a single disclosed embodiment. Therefore, the scope of the following patent applications is hereby incorporated into the embodiments, and each scope of patent applications requires itself to be a separate embodiment.

100: Internet

101: Radio Access Network

102: user equipment

104A: Giant Evolutionary Node

104B: Low-power evolved node

115: S1 interface

120: core network

122: Mobility Management Entity

124: service gateway

126: Packet Data Network Gateway

Claims (21)

A user equipment (UE) device, which includes a processing circuit configured to generate a scheduling request indicating that uplink data will be transmitted to a long-term evolution (LTE) base station, the scheduling request depends on Which of the LTE base station and a fifth-generation (5G) base station the scheduling request will be transmitted to; in response to the transmission of the scheduling request, an uplink grant decoding will be received from the LTE base station to Send a buffer status report (BSR) and a 5G beam measurement report to the LTE base station, where the 5G beam measurement report includes acquiring a selected beam identity from a beam reference signal (BRS) and At least one of the BRS received power (BRS-RP) measurements of one of the selected beams; in response to the uplink granted reception, generate a logical channel identification (LCID) for transmission to the 5G base station The BSR and the 5G beam measurement report, wherein the LCID provides differentiation between an uplink request for the LTE base station and an uplink request for the 5G base station; and responding to the BSR In conjunction with the transmission of the 5G beam measurement report, decoding receives a physical downlink control channel (PDCCH) from the 5G base station. Such as the device of the first item in the scope of patent application, in which: a message includes the scheduling request, and the message is sent to the 5G base station. Such as the device of the first item in the scope of patent application, where the processing circuit It is further configured to generate the scheduling request for transmission via a dedicated resource. For example, the device of claim 1, wherein the processing circuit is further configured to: respond to the reception of the uplink grant from the LTE base station, generate the BSR and the 5G beam measurement report, and respond to the BSR and the 5G beam measurement report. The transmission of the 5G beam measurement report generates the reception of the PDCCH. For example, the device of claim 1, wherein the processing circuit is further configured to generate the BSR in response to the reception of the uplink grant from the 5G base station, and respond to the transmission of the BSR and the 5G beam measurement The transmission of the report generates the reception of at least one 5G entity downlink control channel (xPDCCH). For example, the device of claim 2, wherein the processing circuit is further configured to: generate the scheduling request for a non-dedicated resource; and in response to the transmission of the scheduling request, decode a PDCCH from the LTE base station The PDCCH includes a request for the UE to perform a contention-free random access channel procedure with one of the 5G base stations; and in response to the reception of the PDCCH, it generates a request with a designated preamble for transmission to the 5G base station. A signed 5G physical random access channel (xPRACH), in response to the xPRACH transmission, generates an xPDCCH reception. For the device of item 6 in the scope of patent application, the designation is preceded by The signature includes a pre-index in a pre-index group, and a pre-index group identity is obtained through the BRS-RP measurement of the selected beam. For example, the device in the scope of patent application, in which the xPDCCH includes a reduced random access response (RAR), the reduced RAR does not have a timing advance and the temporary cellular radio network temporary identifier (C-RNTI), and the reduced RAR Stirred by the C-RNTI in a cyclic redundancy check (CRC). Such as the device of the second item of the patent application, where: the message includes an xPRACH for transmission via a dedicated resource. For example, the device of claim 9, wherein the processing circuit is further configured to: in response to the xPRACH and the transmission from the 5G base station, decode an uplink grant to transmit the BSR and the 5G beam measurement report To the 5G base station, a 5G beam measurement includes acquiring at least one of an identity of a selected multiple-input multiple-output (MIMO) beam from a BRS and a BRS-RP measurement of one of the selected beams; and In response to the reception of the uplink grant, the BSR and the 5G beam measurement report are generated, and in response to the transmission of the BSR and the 5G beam measurement report, a xPDCCH reception is generated. For example, the device of claim 9, wherein: the message includes the xPRACH and the BSR for transmission via a dedicated resource, and the reception of an xPDCCH in response to the message transmission. For example, the device of item 2 of the scope of patent application, wherein: the processing circuit includes a base frequency circuit, and the base frequency circuit is configured to The LTE base station sent by a radio resource control (RRC) signal, an uplink dedicated LTE resource for transmission from an uplink request of the LTE base station, and an uplink request to the 5G An uplink dedicated 5G resource transmitted by the base station is determined to be used for transmitting the message on one of the uplink dedicated LTE resource and the uplink dedicated 5G resource. For example, the device of the first item in the scope of the patent application further includes: an antenna configured to provide communication between the UE and a base station. A device for a base station, which includes a processing circuit configured to generate an uplink request for transmitting an uplink request to a long-term evolution (LTE) base station in order to transmit via a radio resource control (RRC) signal One of an uplink dedicated LTE resource and an uplink dedicated fifth-generation (5G) resource for transmitting an uplink request to a 5G base station; the uplink dedicated LTE resource will be combined with the uplink dedicated fifth-generation (5G) resource A decoding of a message sent on one of the uplink dedicated 5G resources, the message indicating that the uplink data will be sent to the 5G base station, the message includes a scheduling request (SR) and a 5G entity random storage One of the channels (xPRACH), the message depends on which of the LTE base station and the 5G base station the message has been transmitted to; in response to the scheduling request via the uplink dedicated LTE resource To receive, generate an uplink grant to transmit a buffer status report (BSR) and a 5G beam measurement report, where the 5G beam measurement report includes a selected beam obtained from a beam reference signal (BRS) At least one of an identity of the beam and a BRS received power (BRS-RP) measurement of one of the selected beams; and after the uplink granted transmission, decode the BSR and the logical channel identification (LCID) The 5G beam measurement report, wherein the LCID provides a differentiation between an uplink request for the LTE base station and an uplink request for the 5G base station. For example, the device of claim 14, wherein: the base station includes the LTE base station, and the processing circuit is further configured to: in response to receiving the scheduling request via the uplink dedicated LTE resource, generate an uplink The link is granted to transmit at least one of the BSR and the 5G beam measurement report. For example, the device of claim 14, wherein: the base station includes the 5G base station, and the processing circuit is further configured to transmit the scheduling request in response to the use of the uplink dedicated LTE resource, and generate an uplink Link grant to transmit at least one of the BSR and the 5G beam measurement report; and generate a 5G physical downlink control channel (xPDCCH) containing a 5G uplink grant for transmitting on the selected beam ), the 5G uplink grant includes resources allocated for the transmission of the uplink data. For example, the device of item 14 of the scope of patent application, wherein: the base station includes the 5G base station, and the processing circuit is further configured to: include a random access channel for enabling the UE to perform a competition-free random access with the 5G base station After the transmission of a requested PDCCH of the procedure and in response to the reception of the scheduling request via a non-dedicated resource from the LTE base station, decode an xPRACH with a designated pre-signature, the xPDCCH including a reduced random memory Get response (RAR), the reduced RAR does not have a timing advance and temporary cellular radio network temporary identifier (C-RNTI), and the reduced RAR is stirred by the C-RNTI in a cyclic redundancy check (CRC) ; And generating an xPDCCH containing a 5G uplink grant for transmission on a selected beam. For example, the device of claim 14, wherein: the base station includes the 5G base station, and the processing circuit is further configured to: in response to receiving an xPRACH via the dedicated 5G resource, generate an uplink grant to transmit The buffer status report (BSR) and the 5G beam measurement report; and generating an xPDCCH containing a 5G uplink grant for transmission on a selected beam. For example, the device of item 14 of the scope of patent application, wherein: the base station includes the 5G base station, and the processing circuit is further configured to: In response to the reception of an xPRACH via the uplink dedicated 5G resource and the BSR, an xPDCCH containing a 5G uplink grant for transmission on a selected beam is generated. A non-transitory computer-readable storage medium that stores program instructions executable by one or more processors of a user equipment (UE), causing the UE to: get used to transmit an uplink request to a At least one of an uplink dedicated LTE resource for a long-term evolution (LTE) base station and an uplink dedicated fifth generation (5G) resource for transmitting an uplink request to a 5G base station; generate a row One of a remote request (SR) and a 5G physical random access channel (xPRACH), the 5G physical random access channel instructs to transmit uplink data to the 5G base station, where the uplink dedicated LTE resource and the One of the uplink dedicated 5G resources transmits the SR and the xPRACH, and is selected according to which of an LTE link and a 5G link is transmitted the SR and the xPRACH; in response to the SR transmission, decoding an uplink grant received from the LTE base station to transmit a buffer status report (BSR) and a 5G beam measurement report to the LTE base station, wherein the 5G beam measurement report includes a The beam reference signal (BRS) acquires at least one of an identity of a selected beam and a BRS received power (BRS-RP) measurement of one of the selected beams; in response to the reception of the uplink grant, generate Contains the BSR and the 5G for a logical channel identification (LCID) transmitted to the 5G base station Beam measurement report, where the LCID provides differentiation between an uplink request for the LTE base station and an uplink request for the 5G base station; and after transmitting a message, it will be included in A 5G physical downlink control channel (xPDCCH) decoded on a selected beam from a 5G uplink grant of the 5G base station, the 5G uplink grant including resources allocated for transmitting uplink data. For example, the non-transitory computer-readable storage medium of item 20 of the scope of patent application, wherein the program instructions are further executable to cause the UE to: decode a PDCCH received from the LTE base station, the PDCCH includes a method for enabling the UE There is a request for a contention-free random access channel program of the 5G base station, and an xPRACH with a designated pre-signature is generated via the 5G link, the xPDCCH includes a reduced random access response (RAR), and the reduced The RAR does not have a timing advance and temporary cellular radio network temporary identifier (C-RNTI), and the reduced RAR is stirred by the C-RNTI in a cyclic redundancy check (CRC).

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