Patent ID: 12256273

DESCRIPTION OF THE EMBODIMENTS

The technical scheme of the present disclosure is described below in further details in conjunction with the drawings. It should be noted that the embodiments of the present disclosure and the characteristics of the embodiments may be arbitrarily combined if no conflict is caused.

Embodiment 1

Embodiment 1 illustrates a flowchart of transmitting a first radio signal, a second radio signal and a reception quality with a first adjustment according to one embodiment of the present disclosure, as shown inFIG.1. InFIG.1, each step represents a step, it should be particularly noted that the sequence order of each box herein does not imply a chronological order of steps marked respectively by these boxes.

In Embodiment 1, the first node in the present disclosure receives the first radio signal and the second radio signal in step101; determines in step102whether a connection is established to a transmitter for the first radio signal according to a reception quality with a first adjustment; the first radio signal is used for determining a first transmission parameter; the second radio signal is used for determining a first reception quality; In Embodiment 1, the first transmission parameter is used to determine a first offset, a sum of the first offset and the first reception quality being equal to the reception quality with the first adjustment; the first transmission parameter is related to a distance between the first node and the transmitter for the first radio signal.

In one embodiment, the first radio signal comprises a Timing Advance Command, and the first transmission parameter comprises a Timing Advance Value indicated by the Timing Advance Command.

In one embodiment, the first radio signal indicates a transmit power for the second radio signal, the first transmission parameter being equal to a difference between the transmit power for the second radio signal and the first reception quality.

In one embodiment, the first radio signal indicates a transmit power for the second radio signal, the first transmission parameter being a pathloss from a transmitter for the first radio signal to the first node.

In one subembodiment, the first radio signal is transmitted on a Physical Downlink Shared CHannel (PDSCH).

In one subembodiment, the first radio signal comprises a Radio Resource Control (RRC) signaling, the RRC signaling indicating the transmit power for the second radio signal.

In one subembodiment, the transmit power for the second radio signal is measured in dBm.

In one embodiment, a transmitter for the first radio signal and a transmitter for the second radio signal are co-located.

In one embodiment, the longer the distance between the first node and the transmitter for the first radio signal, the greater the first transmission parameter.

In one embodiment, the longer the distance between the first node and the transmitter for the first radio signal, the smaller the first offset.

In one embodiment, the first offset is an integer.

In one embodiment, the first offset is less than 0.

In one embodiment, a transmitter for the first radio signal and a transmitter for the second radio signal are a same serving cell.

In one embodiment, the first radio signal and the second radio signal are Quasi Co-located (QCL).

In one embodiment, the phrase of establishing a connection to a transmitter for the first radio signal comprises: establishing a Radio Resource Control (RRC) connection to the transmitter for the first radio signal.

In one embodiment, the phrase of establishing a connection to a transmitter for the first radio signal comprises: switching from a current serving cell to a transmitter for the first radio signal, the transmitter for the first radio signal being a serving cell.

In one embodiment, the phrase of establishing a connection to a transmitter for the first radio signal comprises: a handover request of switching from a current serving cell to the transmitter for the first radio signal, the transmitter for the first radio signal being a serving cell.

In one embodiment, the second radio signal comprises a reference signal, and the first reception quality comprises a receive power for the reference signal.

In one embodiment, the second radio signal comprises a Phase Tracking Reference Signal (PTRS).

In one embodiment, the second radio signal comprises a Synchronization Signal/Physical Broadcast CHannel block (SS/PBCH block).

In one embodiment, the second radio signal comprises a Channel State Information Reference Signal (CSI-RS).

In one embodiment, the first reception quality comprises a Reference Signal Receiving Power (RSRP) obtained by measuring the CSI-RS.

In one embodiment, the first reception quality comprises a Reference Signal Receiving Quality (RSRQ) obtained by measuring the CSI-RS.

In one embodiment, the first reception quality is measured in dBm, while the first offset is measured in dB.

In one embodiment, the first reception quality is measured in mW, while the first offset is measured in mW.

In one embodiment, the first node is a UE.

In one embodiment, the first reception quality comprises an RSRP obtained by a measurement on the second radio signal.

In one embodiment, the first reception quality comprises an RSRQ obtained by a measurement on the second radio signal.

Embodiment 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present disclosure, as shown inFIG.2.FIG.2is a diagram illustrating a network architecture200of NR 5G, Long-Term Evolution (LTE) and Long-Term Evolution Advanced (LTE-A) systems. The NR 5G or LIE network architecture200may be called an Evolved Packet System (EPS)200. The EPS200may comprise one or more UEs201, an NG-RAN202, an Evolved Packet Core/5G-Core Network (EPC/5G-CN)210, a Home Subscriber Server (HSS)220and an Internet Service230. The EPS200may be interconnected with other access networks. For simple description, the entities/interfaces are not shown. As shown inFIG.2, the EPS200provides packet switching services. Those skilled in the art will find it easy to understand that various concepts presented throughout the present disclosure can be extended to networks providing circuit switching services or other cellular networks. The NG-RAN202comprises an NR node B (gNB)203and other gNBs204. The gNB203provides UE201oriented user plane and control plane terminations. The gNB203may be connected to other gNBs204via an Xn interface (for example, backhaul). The gNB203may be called a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Base Service Set (BSS), an Extended Service Set (ESS), a Transmitter Receiver Point (TRP) or some other applicable terms. In NTN, the gNB203can be a satellite or a terrestrial base station relayed through the satellite. The gNB203provides an access point of the EPC/5G-CN210. Examples of UE201include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, Personal Digital Assistant (PDA), Satellite Radios, Global Positioning Systems (GPSs), multimedia devices, video devices, digital audio players (for example, MP3 players), cameras, games consoles, unmanned aerial vehicles, air vehicles, narrow-band physical network equipment, machine-type communication equipment, land vehicles, automobiles, wearable equipment, or any other devices having similar functions. Those skilled in the art also can call the UE201a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a radio communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user proxy, a mobile client, a client or some other appropriate terms. The gNB203is connected to the EPC/5G-CN210via an S1/NG interface. The EPC/5G-CN210comprises MME/AMF/UPF211, other MMEs/AMFs/UPFs214, Service Gateway (S-GW)212and Packet Date Network Gateway (P-GW)213. The MME/AMF/UPF211is a control node for processing a signaling between the UE201and the EPC/5G-CN210. Generally, the MME/AMF/UPF211provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW212. The S-GW212is connected to the P-GW213. The P-GW213provides UE IP address allocation and other functions. The P-GW213is connected to the Internet Service230. The Internet Service230comprises IP services corresponding to operators, specifically including Internet, Intranet, and IP Multimedia Subsystem (IMS).

In one embodiment, the UE201corresponds to the first node in the present disclosure.

In one embodiment, the UE201supports transmissions in NTN.

In one embodiment, the UE201supports transmissions in large-delay-difference networks.

In one embodiment, the gNB203corresponds to the second node in the present disclosure.

In one embodiment, the gNB203supports transmissions in NTN.

In one embodiment, the gNB203supports transmissions in large-delay-difference networks.

Embodiment 3

Embodiment 3 illustrates a schematic diagram of a radio protocol architecture of a user plane and a control plane according to the present disclosure, as shown inFIG.3.FIG.3is a schematic diagram illustrating an embodiment of a radio protocol architecture of a user plane350and a control plane300. InFIG.3, the radio protocol architecture for a control plane300between a first node (UE, gNB or, satellite or aircraft in NTN) and a second node (gNB, UE, or satellite or aircraft in NTN), or between two UEs, is represented by three layers, which are a layer 1, a layer 2 and a layer 3, respectively. The layer 1 (L1) is the lowest layer which performs signal processing functions of various PHY layers. The L1 is called PHY301in the present disclosure. The layer 2 (L2)305is above the PHY301, and is in charge of the link between a first node and a second node as well as between two UEs via the PHY301. The L2305comprises a Medium Access Control (MAC) sublayer302, a Radio Link Control (RLC) sublayer303and a Packet Data Convergence Protocol (PDCP) sublayer304. All these sublayers terminate at the second nodes. The PDCP sublayer304provides multiplexing among variable radio bearers and logical channels. The PDCP sublayer304provides security by encrypting packets and also support for inter-cell handover of the first node between second nodes. The RLC sublayer303provides segmentation and reassembling of a higher-layer packet, retransmission of a lost packet, and reordering of a packet so as to compensate the disordered receiving caused by Hybrid Automatic Repeat reQuest (HARQ). The MAC sublayer302provides multiplexing between a logical channel and a transport channel. The MAC sublayer302is also responsible for allocating between first nodes various radio resources (i.e., resource block) in a cell. The MAC sublayer302is also in charge of HARQ operation. In the control plane300, The RRC sublayer306in the L3layer is responsible for acquiring radio resources (i.e., radio bearer) and configuring the lower layer using an RRC signaling between the second node and the first node. The radio protocol architecture in the user plane350comprises the L1 layer and the L2 layer. In the user plane350, the radio protocol architecture used for the first node and the second node in a PHY layer351, a PDCP sublayer354of the L2 layer355, an RLC sublayer353of the L2 layer355and a MAC sublayer352of the L2 layer355is almost the same as the radio protocol architecture used for corresponding layers and sublayers in the control plane300, but the PDCP sublayer354also provides header compression used for higher-layer packet to reduce radio transmission overhead. The L2 layer355in the user plane350also comprises a Service Data Adaptation Protocol (SDAP) sublayer356, which is in charge of the mapping between QoS streams and a Data Radio Bearer (DRB), so as to support diversified traffics. Although not described inFIG.3, the first node may comprise several higher layers above the L2355, such as a network layer (i.e., IP layer) terminated at a P-GW213of the network side and an application layer terminated at the other side of the connection (i.e., a peer UE, a server, etc.).

In one embodiment, the radio protocol architecture inFIG.3is applicable to the first node in the present disclosure.

In one embodiment, the radio protocol architecture inFIG.3is applicable to the second node in the present disclosure.

In one embodiment, the first radio signal in the present disclosure is generated by the RRC306.

In one embodiment, the first radio signal in the present disclosure is generate by the MAC302or the MAC352.

In one embodiment, the first radio signal in the present disclosure is generated by the PHY301or the PHY351.

In one embodiment, the second radio signal in the present disclosure is generated by the PHY301or the PHY351.

In one embodiment, the first signaling in the present disclosure is generated by the RRC306.

In one embodiment, the first signaling in the present disclosure is generate by the MAC302or the MAC352.

In one embodiment, the first signaling in the present disclosure is generated by the PHY301or the PHY351.

In one embodiment, the access request signal in the present disclosure is generated by the RRC306.

In one embodiment, the access request signal in the present disclosure is generate by the MAC302or the MAC352.

In one embodiment, the access request radio signal in the present disclosure is generated by the PHY301or the PHY351.

Embodiment 4

Embodiment 4 illustrates a schematic diagram of a first node and a second node according to the present disclosure, as shown inFIG.4.

The first node (450) comprises a controller/processor490, a data source/buffer480, a receiving processor452, a transmitter/receiver456and a transmitting processor455, where the transmitter/receiver456comprises an antenna460. The data source/buffer480provides a higher layer packet to the controller/processor490, and the controller/processor490provides header compression and decompression, encryption and decryption, packet segmentation and reordering, as well as multiplexing and de-multiplexing between logical and transport channels, so as to implement the protocols for L2 and above layers in the user plane and the control plane, the higher layer packet can comprise data or control information, such as a DL-SCH or UL-SCH or an SL-SCH. The transmitting processor455provides various signal transmitting processing functions used for the L1 (that is, PHY), including coding, interleaving, scrambling, modulation, power control/allocation, precoding and physical layer control signaling generation. The receiving processor452provides various signal receiving processing functions used for the L1 (that is, PHY), including decoding, de-interleaving, de-scrambling, demodulation, de-precoding and physical layer control signaling extraction. The transmitter456converts a baseband signal provided by the transmitting processor455into a radio frequency signal to be transmitted via the antenna460, and then the receiver456is used to convert the radio frequency signal received via the antenna460into a baseband signal to be provided to the receiving processor452.

The second node (410) can comprise a controller/processor440, a data source/buffer430, a receiving processor412, a transmitter/receiver416and a transmitting processor415, where the transmitter/receiver416comprises an antenna420. A higher-layer packet is provided by the data source/buffer430to the controller/processor440, and the controller/processor440provides header compression and decompression, encryption and decryption, packet segmentation and reordering as well as multiplexing and demultiplexing between a logical channel and a transport channel so as to implement the L2 layer protocols used for the user plane and the control plane. The higher layer packet can comprise data or control information, such as a DL-SCH or UL-SCH or an SL-SCH. The transmitting processor415provides various signal transmitting processing functions used for the L1 (that is, PHY), including coding, interleaving, scrambling, modulation, power control/allocation, precoding and generation of physical layer control signaling (including synchronization signal and reference signal). The receiving processor412provides various signal receiving processing functions used for the L1 (that is, PHY), including decoding, de-interleaving, de-scrambling, demodulation, de-precoding and physical layer signaling extraction. The transmitter416is configured to convert a baseband signal provided by the transmitting processor415into a radio frequency signal to be transmitted via the antenna420, and the receiver416is used to convert the radio frequency signal received via the antenna420into a baseband signal, which will be provided to the receiving processor412.

In Downlink (DL), a higher layer packet, for instance higher-layer information contained in the first signaling and an access request signal in the present disclosure is provided to the controller/processor440. The controller/processor440provides functions of the L2 layer and above. In DL, the controller/processor440provides header compression, encryption, packet segmentation and reordering, multiplexing between a logical channel and a transport channel as well as radio resources allocation for the first node450based on various priorities. The controller/processor440is also responsible for HARQ operation, a retransmission of a lost packet and a signaling to the first node450, for instance, higher-layer information (if included) in the first radio signal, the second radio signal, the first signaling and the access request signal in the present disclosure is generated in the controller/processor440. The transmitting processor415provides various signal processing functions used for the L1 (that is, PHY), including coding, interleaving, scrambling, modulation, power control/allocation, precoding and physical layer control signaling generation, for instance, physical layer signal generation such as the first signaling and the access request signal in the present disclosure is completed in the transmitting processor415. Modulation symbols generated are divided into parallel streams and each stream is mapped to a corresponding multicarrier subcarrier and/or multicarrier symbol, and is then mapped from the transmitting processor415to the antenna420via the transmitter416to be transmitted in the form of radio frequency signals. At the receiving end, each receiver456receives a radio frequency signal via a corresponding antenna460, and recovers baseband information modulated onto a radio frequency carrier and provides the baseband information to the receiving processor452. The receiving processor452performs various signal receiving processing functions used for the L1. Signal receiving processing functions include receiving physical layer signals corresponding to the first radio signal, the second radio signal, the first signaling and the access request signal in the present disclosure, demodulating multicarrier symbols in multicarrier symbol streams based on varied modulation schemes (such as BPSK, QPSK) and then de-scrambling, decoding and de-interleaving to recover data or control signal transmitted by the second node410on a physical channel, after wards providing the data and control signal to the controller/processor490. The controller/processor490is in charge of the L2 and above layers, the controller/processor490interprets higher-layer information (if included) in the first signaling and the access request signal in the present disclosure. The controller/processor can be associated with the memory480that stores program code and data; the memory480may be called a computer readable medium.

In UL transmission, the data source/buffer480is used to provide higher-layer data to the controller/processor490. The data source/buffer480represents the L2 and all protocol layers above it. The controller/processor490provides header compression, encryption, packet segmentation and reordering as well as multiplexing between logical and transport channels based on radio resources allocation for the second node410to perform the L2 protocols used for the user plane and the control plane. The controller/processor490is responsible for HARQ operation, retransmission of a lost packet and a signaling to the second node410. The access request signal in the present disclosure is generated by the controller/processor490. The transmitting processor455provides various signal transmitting processing functions used for the L1 (that is, PHY), and a physical layer signal corresponding to the access request signal in the present disclosure is generated by the transmitting processor455. Signal transmitting processing functions include coding and interleaving to promote Forward Error Correction (FEC) at the UE450as well as modulation on baseband signals based on each modulation scheme (such as BPSK, QPSK), dividing modulation symbols into parallel streams and mapping each stream to a corresponding multicarrier subcarrier and/or multicarrier symbol, which is then mapped to the antenna460by the transmitting processor455via the transmitter456to be transmitted in the form of radio frequency signals. The receiver416receives a radio frequency signal via a corresponding antenna420, and each receiver416recovers baseband information modulated onto a radio frequency carrier and provides the baseband information to the receiving processor412. The receiving processor412provides various signal receiving processing functions used for the L1 (that is, PHY), including receiving and processing a physical layer signal for the access request signal in the present disclosure, and also include acquiring multicarrier symbol streams, and demodulating multicarrier symbols in the multicarrier symbol streams based on different modulation schemes (such as BPSK, QPSK), and decoding and de-interleaving to recover data and/or control signal originally transmitted by the first node450on the physical channel. After that the data and/or control signal are provided to the controller/processor440. The functionality of the L2 is implemented by the controller/processor440, including interpreting information carried by the access request signal in the present disclosure. The controller/processor can be associated with the buffer430that stores program code and data; the buffer430may be called a computer readable medium.

In one embodiment, the first node450comprises at least one processor and at least one memory, the at least one memory comprises computer program codes; the at least one memory and the computer program codes are configured to be used in collaboration with the at least one processor. The first node450at least: receives a first radio signal, and determines a first transmission parameter according to the first radio signal; receives a second radio signal, and determines a first reception quality according to the second radio signal; determines whether a connection is established to a transmitter for the first radio signal according to a reception quality with a first adjustment; herein, the first transmission parameter is used to determine a first offset, a sum of the first offset and the first reception quality being equal to the reception quality with the first adjustment; the first transmission parameter is related to a distance between the first node and the transmitter for the first radio signal.

In one embodiment, the first node450comprises a memory that stores a computer readable instruction program, the computer readable instruction program generates actions when executed by at least one processor, which include: receiving a first radio signal, and determining a first transmission parameter according to the first radio signal; receiving a second radio signal, and determining a first reception quality according to the second radio signal; determining whether a connection is established to a transmitter for the first radio signal according to a reception quality with a first adjustment; herein, the first transmission parameter is used to determine a first offset, a sum of the first offset and the first reception quality being equal to the reception quality with the first adjustment; the first transmission parameter is related to a distance between the first node and the transmitter for the first radio signal.

In one embodiment, the second node410comprises at least one processor and at least one memory, the at least one memory comprises computer program codes; the at least one memory and the computer program codes are configured to be used in collaboration with the at least one processor. The second node410at least: transmits a first radio signal, and determines a first transmission parameter according to the first radio signal; transmits a second radio signal, and determines a first reception quality according to the second radio signal; herein, determining whether a connection is established to a transmitter for the first radio signal according to a reception quality with a first adjustment; the first transmission parameter is used to determine a first offset, a sum of the first offset and the first reception quality being equal to the reception quality with the first adjustment; the first transmission parameter is related to a distance between the first node and the transmitter for the first radio signal.

In one embodiment, the second node410comprises a memory that stores a computer readable instruction program, the computer readable instruction program generates actions when executed by at least one processor, which include: transmitting a first radio signal, and determining a first transmission parameter according to the first radio signal; transmitting a second radio signal, and determining a first reception quality according to the second radio signal; herein, determining whether a connection is established to a transmitter for the first radio signal according to a reception quality with a first adjustment; the first transmission parameter is used to determine a first offset, a sum of the first offset and the first reception quality being equal to the reception quality with the first adjustment; the first transmission parameter is related to a distance between the first node and the transmitter for the first radio signal.

In one embodiment, the first node450is a UE.

In one embodiment, the first node450is a UE supporting large delay difference.

In one embodiment, the first node450is a UE supporting NTN.

In one embodiment, the first node450is an aircraft.

In one embodiment, the second node410is a base station (gNB/eNB).

In one embodiment, the second node410is a base station supporting large delay difference.

In one embodiment, the second node410is a base station supporting NTN.

In one embodiment, the second node410is satellite equipment.

In one embodiment, the second node410is a flight platform.

In one embodiment, the receiver456(comprising the antenna460), the receiving processor452and the controller/processor490are used for receiving the first radio signal in the present disclosure.

In one embodiment, the receiver456(comprising the antenna460), the receiving processor452and the controller/processor490are used for receiving the second radio signal in the present disclosure.

In one embodiment, the transmitter456(comprising the antenna460), the transmitting processor455and the controller/processor490are used for transmitting the first signaling in the present disclosure.

In one embodiment, the receiving processor452determines whether a connection to the second node is established according to a reception quality with a first adjustment.

In one embodiment, the transmitter416(comprising the antenna420), the transmitting processor415and the controller/processor440are used for transmitting the access request signal in the present disclosure.

Embodiment 5

Embodiment 5 illustrates a flowchart of radio signal transmission according to one embodiment of the present disclosure, as shown inFIG.5. InFIG.5, a second node N01is a base station for a serving cell for a first node U01. It should be particularly noted that the sequence illustrated herein does not set any limit on the orders in which signals are transmitted and implementations in this present disclosure.

The second node N01transmits a first signaling in step S5101, transmits a first radio signal and a second radio signal in step S5102, and receives an access request signal in step S5103.

The first node U01receives a first signaling in step S5201, receives a first radio signal and a second radio signal in step S5202, and calculates a reception quality with a first adjustment in step S5203, and determines in step S5204whether a connection is established to the second node, if so, transmits an access request signal in step S5205, if not, cancels the access request signal transmission in step S5205.

In Embodiment 5, the first radio signal in the present disclosure is used to determine a first transmission parameter; the second radio signal is used for determining a first reception quality; herein, it is determined whether a connection to the second node is established according to a reception quality with a first adjustment; the first transmission parameter is used to determine a first offset, a sum of the first offset and the first reception quality being equal to the reception quality with the first adjustment; the first transmission parameter is related to a distance between the first node and the transmitter for the first radio signal.

In one embodiment, the first signaling indicates a first candidate offset set, the first candidate offset set being comprised of multiple candidate offsets, where the first offset is one of the multiple candidate offsets; herein, the first transmission parameter is used for determining the first offset from the first candidate offset set.

In one embodiment, the phrase of establishing a connection to a transmitter for the first radio signal comprises: establishing a Radio Resource Control (RRC) connection to the transmitter for the first radio signal.

In one embodiment, the phrase of establishing a connection to a transmitter for the first radio signal comprises: switching from a current serving cell to a transmitter for the first radio signal, the transmitter for the first radio signal being a serving cell.

In one embodiment, a connection between the first node U01and the second node N01is established on the premise that the reception quality with the first adjustment continues to exceed a first reference by a first threshold till a first time length is reached.

In one embodiment, a connection between the first node U01and the second node N01is established on the premise that the reception quality with the first adjustment exceeds a first reference by a second threshold.

The first reference is a base station currently in connection with the UE.

The first reference is a source base station.

In one embodiment, the first radio signal comprises a Timing Advance Command, and the first transmission parameter comprises a Timing Advance Value indicated by the Timing Advance Command.

In one embodiment, the first radio signal indicates a transmit power for the second radio signal, the first transmission parameter being equal to a difference between the transmit power for the second radio signal and the first reception quality.

In one embodiment, the first radio signal indicates a transmit power for the second radio signal, the first transmission parameter being a pathloss from a transmitter for the first radio signal to the first node.

In one embodiment, a transmitter for the first radio signal and a transmitter for the second radio signal are co-located.

In one embodiment, a transmitter for the first radio signal and a transmitter for the second radio signal are a same serving cell.

In one embodiment, the first radio signal and the second radio signal are Quasi Co-located (QCL).

In one embodiment, the second radio signal comprises a reference signal, and the first reception quality comprises a receive power for the reference signal.

In one embodiment, the second radio signal comprises a Channel State Information Reference Signal (CSI-RS).

In one embodiment, the first signaling is a higher-layer signaling.

In one embodiment, the first signaling is cell-common.

In one embodiment, the first signaling explicitly indicates the first candidate offset set.

In one embodiment, the first signaling indicates a first reference offset, the first candidate offset set being implicitly indicated by the first reference offset.

In one embodiment, the first signaling is a Measurement Control Command.

In one embodiment, the first signaling comprises partial or all fields in a ReportConfigEUTRA Information Element (IE).

In one embodiment, the first signaling comprises partial or all fields in a MeasObjectEUTRA IE.

In one embodiment, a channel occupied by the access request signal includes a Physical Random Access CHannel (PRACH); a synchronization timing for reception of the first radio signal is used to determine a transmission timing for the access request signal.

In one embodiment, the access request signal comprises an RRCconnectionRequest Information Element.

In one embodiment, a channel occupied by the access request signal includes a Physical Uplink SharedCHannel (PUSCH).

In one embodiment, the access request signal is a MeasurementReport message.

In one embodiment, the second node N01is a target receiver for the access request signal.

In one embodiment, an identifier of the transmitter for the first radio signal is used for generating the access request signal.

Embodiment 6

Embodiment 6 illustrates a schematic diagram of a first threshold and a second threshold according to one embodiment of the present disclosure, as shown inFIG.6. InFIG.6, the horizontal axis is time, while the vertical axis represents adjustment reception quality.

In Embodiment 6, as illustrated inFIG.6, a difference between a third instance of time and a second instance of time is equal to a first target time length; a difference between a fourth instance of time and a third instance of time is equal to a second target time length; the first target time length is smaller than a first time length; the second target time length is equal to a first time length. A first instance of time, the second instance of time, the third instance of time, the fourth instance of time and a fifth instance of time gradually increase in order.

In one embodiment, an adjustment value of a reception quality received by a transmitter for the first radio signal is the reception quality with the first adjustment.

In one embodiment, a measurement on a reference signal transmitted by a current serving cell for the first node is used to determine the first threshold, the transmitter for the first radio signal being a serving cell other than the current serving cell for the first node.

In one embodiment, a measurement on a reference signal transmitted by a current serving cell for the first node and a distance between the current serving cell for the first node and the first node are jointly used to determine the first threshold.

In one embodiment, the first threshold is configurable.

In one embodiment, the second threshold is configurable.

In one embodiment, the first time length is configurable.

In one embodiment, the first time length is configured by an RRC layer signaling.

In one embodiment, the transmitter for the first radio signal is a serving cell other than a current serving cell for the first node, the first reference being a counterpart of the reception quality with the first adjustment in the current serving cell for the first node.

In one embodiment, the transmitter for the first radio signal is a serving cell other than a current serving cell for the first node, the first reference by a second threshold being a counterpart of the reception quality with the first adjustment in the current serving cell for the first node.

In one embodiment, the second threshold is greater than the first threshold.

In one embodiment, at the first instance of time, the reception quality with the first adjustment is lower than a first reference by a first threshold, the first processor determines not to establish a connection to a transmitter for the first radio signal.

In one embodiment, at the second instance of time, the reception quality with the first adjustment begins to exceed a first reference by a first threshold, at the third instance of time, the reception quality with the first adjustment continues to exceed the first reference by a first threshold and lasts no longer than the first time length, the first processor determines not to establish a connection to a transmitter for the first radio signal.

In one embodiment, at the second instance of time, the reception quality with the first adjustment begins to exceed a first reference by a first threshold, at the fourth instance of time, the reception quality with the first adjustment continues to exceed the first reference by a first threshold and lasts till the first time length, the first processor determines to establish a connection to the transmitter for the first radio signal. In one embodiment, at the fifth instance of time, the reception quality with the first adjustment exceeds a first reference by a second threshold, the first processor determines to establish a connection to the transmitter for the first radio signal.

Embodiment 7

Embodiment 7 illustrates a schematic diagram of a first candidate offset set according to one embodiment of the present disclosure, as shown inFIG.7. In Embodiment 7, a first signaling indicates the first candidate offset set, the first candidate offset set being comprised of multiple candidate offsets, where the first offset is one of the multiple candidate offsets; herein, a first transmission parameter is used for determining the first offset from the first candidate offset set.

In one embodiment, the candidate offset set comprises I said candidate offset(s), where I is a positive integer.

In one embodiment, a j-th (j=1, 2 . . . , I-1, I) said candidate offset is determined by a j-th said first transmission parameter X(j).

In one embodiment, the first transmission parameter is related to a distance between the first node and the transmitter for the first radio signal.

In one embodiment, the first transmission parameter X(j) is a pathloss from the transmitter for the first radio signal to the first node.

In one embodiment, the first transmission parameter X(j) is a Timing Advance Value indicated by a Timing Advance Command

In one embodiment, the longer the distance between the first node and the transmitter for the first radio signal, the greater the first transmission parameter X(j).

In one embodiment, the first offset is an i-th candidate offset in the first candidate offset set which corresponds to a maximum said first transmission parameter X(i).

In one embodiment, the first offset is an i-th candidate offset in the first candidate offset set which corresponds to a minimum said first transmission parameter X(i).

In one embodiment, any two of the multiple candidate offsets are unequal.

In one embodiment, the longer the distance between the first node and the transmitter for the first radio signal, the larger the first offset.

In one embodiment, the larger the first transmission parameter, the smaller the first offset.

In one embodiment, the first signaling is a higher-layer signaling.

In one embodiment, the first signaling is cell-common.

In one embodiment, any candidate offset in the first candidate offset set corresponds to a first transmission parameter range, the first offset being one of the multiple candidate offsets to which a corresponding transmission parameter range comprises the first transmission parameter.

In one embodiment, the first signaling explicitly indicates the first candidate offset set.

In one embodiment, the first signaling indicates a first reference offset, the first candidate offset set being implicitly indicated by the first reference offset.

In one embodiment, the first signaling comprises partial or all fields in a ReportConfigEUTRA Information Element (IE).

In one embodiment, the first signaling comprises partial or all fields in a MeasObjectEUTRA IE.

In one embodiment, the first reference offset comprises at least one of {OffsetFreq, cellIndividualOffset, csi-RS-IndividualOffset, a3-Offset, a6-Offset, c2-Offset, h1-ThresholdOffset, h2-ThresholdOffset, Hysteresis}.

In one embodiment, the first reference offset is determined jointly by at least two of {OffsetFreq, cellIndividualOffset, csi-RS-IndividualOffset, a3-Offset, a6-Offset, c2-Offset, h1-ThresholdOffset, h2-ThresholdOffset, Hysteresis}.

Embodiment 8

Embodiment 8 illustrates a schematic diagram of a handover procedure according to one embodiment of the present disclosure, as shown inFIG.8.

The UE U02receives a first signaling message transmitted by a source cell N03in step S801; receives a first radio signal and a second radio signal transmitted by a first serving cell N02in step S802; receives a first-type radio signal and a second-type radio signal transmitted by a serving cell group N04in step S803; selects the first serving cell as a target of handover in step S804; transmits a first access request signal to the source cell N03in step S805; in step S810, the UE U02and the first serving cell N02jointly perform procedures relevant to initiating handover; in step S811, the UE U02transmits an access request signal to the first serving cell N02; In step S812, the UE U02, the source cell N03and the first serving cell N02jointly perform procedures relevant to initiating handover.

The source cell N03transmits a first signaling message to the UE U02in step S801; receives a first access request signal transmitted by the UE U02in step S805; makes a handover decision according to the first access request signal in step S806; sends a handover request message to the first serving cell in step S807; receives a handover request acknowledgment message sent from the first serving cell in step S809; in step S810, the UE U02and the first serving cell N02jointly perform procedures relevant to initiating handover; In step S812, the UE U02, the source cell N03and the first serving cell N02jointly perform procedures relevant to initiating handover.

The first serving cell N02transmits a first radio signal and a second radio signal in step S802; receives a handover request message sent from the source cell N03in step S807; and performs admission control in step S808; sends a handover request acknowledgment message to the source cell N03in step S809; receives an access request signal transmitted by the UE U02in step S811; and in step S812, the UE U02, the first serving cell N02and the source cell N03jointly perform procedures relevant to initiating handover.

The serving cell group N04transmits K first-type radio signal(s) and K second-type radio signal(s) in step S803.

In one embodiment, the first radio signal is a first-type radio signal.

the K transmission parameter(s) is(are respectively) used to determine K offset(s); the K offset(s) corresponds(respectively correspond) to the K first-type reception quality(qualities), sum(s) of the K offset(s) and corresponding first-type reception quality(qualities) is(are respectively) equal to K first-type adjustment reception quality(qualities); the reception quality with the first adjustment is higher than a maximum first-type adjustment reception quality of the K first-type adjustment reception quality(qualities).

In one embodiment, the F1module inFIG.8is optional.

In one embodiment, the handover decision is a HO decision message in 3GPP protocols.

In one embodiment, the handover request message is a HANDOVER REQUEST message in 3GPP protocols.

In one embodiment, the admission control is Admission Control in 3GPP protocols.

In one embodiment, the handover request acknowledgment is a HANDOVER REQUEST ACKNOWLEDGE message in 3GPP protocols. In one embodiment, the UE is the first node.

In one embodiment, the source cell is the second node.

In one embodiment, the first serving cell is the second node.

In one embodiment, the serving cell group is the second node.

In one embodiment, the first signaling explicitly indicates the first candidate offset set.

In one embodiment, the first signaling indicates a first reference offset, the first candidate offset set being implicitly indicated by the first reference offset.

In one embodiment, the first signaling is a Measurement Control Command

In one embodiment, the first signaling comprises partial or all fields in a ReportConfigEUTRA Information Element (IE).

In one embodiment, the first signaling comprises partial or all fields in a MeasObjectEUTRA IE.

In one embodiment, the first radio signal comprises a Timing Advance Command, and the first transmission parameter comprises a Timing Advance Value indicated by the Timing Advance Command

In one embodiment, the first radio signal indicates a transmit power for the second radio signal, the first transmission parameter being a pathloss from a transmitter for the first radio signal to the first node.

In one embodiment, the second radio signal comprises a reference signal, and the first reception quality comprises a receive power for the reference signal.

In one embodiment, the second radio signal comprises a Channel State Information Reference Signal (CSI-RS).

In one embodiment, the first access request signal is a Measurement Report.

In one embodiment, the first access request signal is the access request signal.

In one embodiment, the triggering event is one of {eventA1, eventA2, eventA3, eventA4, eventA5, eventA6, eventB1, eventB2, eventC1, eventC2} in 3GPP protocols.

In one embodiment, the triggering event is the reception quality with the first adjustment in the present disclosure continuing to exceed the first reference by a first threshold till a first time length is reached.

In one embodiment, the triggering event is the reception quality with the first adjustment in the present disclosure exceeding the first reference by a second threshold.

In one embodiment, the triggering event is related to the reception quality with the first adjustment.

In one embodiment, the access request signal is a Measurement Report sent to the original base station by the UE.

In one embodiment, a channel occupied by the access request signal includes a Physical Random Access CHannel (PRACH); a synchronization timing for reception of the first radio signal is used to determine a transmission timing for the access request signal.

In one embodiment, the access request signal comprises an RRCconnectionRequest Information Element.

In one embodiment, a channel occupied by the access request signal includes a Physical Uplink SharedCHannel (PUSCH).

In one embodiment, an identifier of the transmitter for the first radio signal is used for generating the access request signal.

Embodiment 9

Embodiment 9 illustrates a flowchart of transmission of a first signaling according to one embodiment of the present disclosure, as shown inFIG.9. InFIG.9, a second node is a base station for a serving cell for a first node.

The second node U01transmits a first signaling in step S9101.

The first node N01receives a first signaling in step S9201.

In Embodiment 9, the first signaling in the present disclosure indicates a first candidate offset set, the first candidate offset set being comprised of multiple candidate offsets, where the first offset is one of the multiple candidate offsets; herein, the first transmission parameter is used for determining the first offset from the first candidate offset set.

In one embodiment, any two of the multiple candidate offsets are unequal.

In one embodiment, the longer the distance between the first node and the transmitter for the first radio signal, the larger the first offset.

In one embodiment, the larger the first transmission parameter, the smaller the first offset.

In one embodiment, the first signaling is a higher-layer signaling.

In one embodiment, the first signaling is cell-common.

In one embodiment, any candidate offset in the first candidate offset set corresponds to a transmission parameter range, the first offset being one of the multiple candidate offsets to which a corresponding transmission parameter range comprises the first transmission parameter.

In one embodiment, the first signaling explicitly indicates the first candidate offset set.

In one embodiment, the first signaling indicates a first reference offset, the first candidate offset set being implicitly indicated by the first reference offset.

In one embodiment, the first signaling comprises partial or all fields in a ReportConfigEUTRA Information Element (IE).

In one embodiment, the first signaling comprises partial or all fields in a MeasObjectEUTRA IE.

In one embodiment, the first reference offset comprises at least one of {OffsetFreq, cellIndividualOffset, csi-RS-IndividualOffset, a3-Offset, a6-Offset, c2-Offset, h1-ThresholdOffset, h2-ThresholdOffset, Hysteresis}.

In one embodiment, the first reference offset is determined jointly by at least two of {OffsetFreq, cellIndividualOffset, csi-RS-IndividualOffset, a3-Offset, a6-Offset, c2-Offset, h1-ThresholdOffset, h2-ThresholdOffset, Hysteresis}.

Embodiment 10

Embodiment 10 illustrates a schematic diagram of a reception quality with a first adjustment being used to determine whether a connection is established to a transmitter for a first radio signal according to one embodiment of the present disclosure; as shown inFIG.10.

In one embodiment, when a reception quality with a first adjustment exceeds a first reference by a first threshold and remains no larger than a first reference by a second threshold for shorter than the first time length, the first processor determines not to establish a connection to a transmitter for the first radio signal.

In one embodiment, the transmitter for the first radio signal is a serving cell other than a current serving cell for the first node, the second threshold being a counterpart of the reception quality with the first adjustment in the current serving cell for the first node.

In one embodiment, the transmitter for the first radio signal is a serving cell other than a current serving cell for the first node, the second threshold being greater than the first threshold.

In one embodiment, when the reception quality with the first adjustment is lower than a first reference by a first threshold, the first processor determines not to establish a connection to a transmitter for the first radio signal.

In one embodiment, when a reception quality with a first adjustment exceeds a first reference by a first threshold and remains for shorter than the first time length, the first processor determines not to establish a connection to a transmitter for the first radio signal.

In one embodiment, the first threshold is configurable.

In one embodiment, the second threshold is configurable.

In one embodiment, the first time length is configurable.

In one embodiment, the first time length is configured by an RRC layer signaling.

In one embodiment, a measurement on a reference signal transmitted by a current serving cell for the first node is used to determine the first threshold, the transmitter for the first radio signal being a serving cell other than the current serving cell for the first node.

In one embodiment, a measurement on a reference signal transmitted by a current serving cell for the first node and a distance from a current serving cell for the first node to the first node are jointly used to determine the first threshold, the transmitter for the first radio signal being a serving cell other than the current serving cell for the first node.

In one embodiment, the transmitter for the first radio signal is a serving cell other than a current serving cell for the first node, the first threshold being a counterpart of the reception quality with the first adjustment in the current serving cell for the first node.

Embodiment 11

Embodiment 11 illustrates a schematic diagram of K transmission parameter(s) being (respectively) used to determine K offset(s); as shown inFIG.11.

In Embodiment 11, the K first-type radio signal(s) is(are respectively) used to determine K transmission parameter(s); K second-type radio signal(s) is(are respectively) used to determine K first-type reception quality(qualities). K is a positive integer; herein, the K transmission parameter(s) is(are respectively) used to determine K offset(s); the K offset(s) corresponds(respectively correspond) to the K first-type reception quality(qualities), sum(s) of the K offset(s) and corresponding first-type reception quality(qualities) is(are respectively) equal to K first-type adjustment reception quality(qualities); the reception quality with the first adjustment is higher than a maximum first-type adjustment reception quality of the K first-type adjustment reception quality(qualities).

In one embodiment, the K transmission parameter(s) is(are respectively) used to determine K offset(s).

In one embodiment, the K transmission parameter(s) is(are respectively) determined by the K first-type radio signal(s).

In one embodiment, the K offset(s) corresponds(correspond) to the K first-type reception quality(qualities respectively).

In one embodiment, sum(s) of the K offset(s) and corresponding first-type reception quality(qualities) is(are respectively) equal to K first-type adjustment reception quality(qualities).

In one embodiment, the reception quality with the first adjustment is higher than a maximum first-type adjustment reception quality of the K first-type adjustment reception quality(qualities).

In one embodiment, the K first-type radio signal(s) is(are respectively) transmitted by K serving cell(s), a transmitter for the first radio signal being a serving cell other than the K serving cell(s).

In one embodiment, the K second-type radio signal(s) is(are respectively) transmitted by the K serving cell(s).

In one embodiment, the K first-type radio signal(s) is(are respectively) transmitted by K serving cell(s), a transmitter for the first radio signal being a serving cell other than the K serving cell(s).

In one embodiment, the K transmission parameter(s) is(are respectively) counterpart(s) of a first transmission parameter in the K serving cell(s).

In one embodiment, the K first-type reception quality(qualities) is(are respectively) counterpart(s) of a first transmission parameter in the K serving cell(s).

Embodiment 12

FIG.12illustrates a structure block diagram of a processing device used in a first node according to one embodiment of the present disclosure; as shown inFIG.12. InFIG.12, a processing device1200in a first node is comprised of a first receiver1201, a first processor1202and a first transmitter1203.

In Embodiment 12, the first receiver1201receives a first radio signal, a second radio signal and a first signaling; a first processor determines whether a connection is established to a transmitter for the first radio signal according to a reception quality with a first adjustment; a first transmitter1202transmits an access request signal.

In Embodiment 12, the first radio signal is used to determine a first transmission parameter; the second radio signal is used for determining a first reception quality; determining whether a connection is established to a transmitter for the first radio signal according to a reception quality with a first adjustment; herein, the first transmission parameter is used to determine a first offset, a sum of the first offset and the first reception quality being equal to the reception quality with the first adjustment; the first transmission parameter is related to a distance between the first node and the transmitter for the first radio signal.

In one embodiment, the first signaling indicates a first candidate offset set, the first candidate offset set being comprised of multiple candidate offsets, where the first offset is one of the multiple candidate offsets; herein, the first transmission parameter is used for determining the first offset from the first candidate offset set.

In one embodiment, the transmitter for the first radio signal is a target receiver for the access request signal.

In one embodiment, when the reception quality with the first adjustment continues to exceed a first reference by a first threshold and lasts till a first time length, determining to transmit a message of establishing a connection to a transmitter for the first radio signal.

In one embodiment, when the reception quality with the first adjustment exceeds a first reference by a second threshold, determining to transmit a message of establishing a connection to a transmitter for the first radio signal.

In one embodiment, the first receiver1201receives K first-type radio signal(s), and determines K transmission parameter(or parameters respectively) according to the K first-type radio signal(s); receives K second-type radio signal(s), and determines K first-type reception quality(or qualities respectively) according to the K second-type radio signal(s); K is a positive integer; herein, the K transmission parameter(s) is(are respectively) used to determine K offset(s); the K offset(s) corresponds(respectively correspond) to the K first-type reception quality(qualities), sum(s) of the K offset(s) and corresponding first-type reception quality(qualities) is(are respectively) equal to K first-type adjustment reception quality(qualities); the reception quality with the first adjustment is higher than a maximum first-type adjustment reception quality of the K first-type adjustment reception quality(qualities).

In one embodiment, the first node1400is a UE.

In one embodiment, the first node1400is a UE supporting large delay difference.

In one embodiment, the first node1400is a UE supporting NTN.

In one embodiment, the first node1400is an aircraft.

In one embodiment, the first receiver1201comprises at least one of the antenna452, the receiver454, the receiving processor456, the multi-antenna receiving processor458, the controller/processor459, the memory460or the data source467in Embodiment 4.

In one embodiment, the first processor1202comprises at least one of the receiver454, the receiving processor456, the multi-antenna receiving processor458, the controller/processor459or the memory460in Embodiment 4.

In one embodiment, the first transmitter1203comprises at least one of the antenna452, the transmitter454, the transmitting processor468, the multi-antenna transmitting processor457, the controller/processor459, the memory460or the data source467in Embodiment 4.

Embodiment 13

Embodiment 13 illustrates a structure block diagram of a processing device used in a second node according to one embodiment of the present disclosure; as shown inFIG.13. InFIG.13, a processing device1300in a second node is comprised of a second transmitter1301, a second receiver1302and a third transmitter1303.

In Embodiment 13, the second transmitter1301transmits a first radio signal and a second radio signal; the second receiver1302receives an access request signal; the third transmitter1303transmits a first signaling.

In Embodiment 13, the first radio signal is used to determine a first transmission parameter; the second radio signal is used for determining a first reception quality; herein, the reception quality with the first adjustment is used to determine whether a connection to the second node is established; the first transmission parameter is used to determine a first offset, a sum of the first offset and the first reception quality being equal to the reception quality with the first adjustment; the first transmission parameter is related to a distance between the first node and the transmitter for the first radio signal.

In one embodiment, the first signaling indicates a first candidate offset set, the first candidate offset set being comprised of multiple candidate offsets, where the first offset is one of the multiple candidate offsets; herein, the first transmission parameter is used for determining the first offset from the first candidate offset set.

In one embodiment, the transmitter for the first radio signal is a target receiver for the access request signal.

In one embodiment, when the reception quality with the first adjustment continues to exceed a first reference by a first threshold and lasts till a first time length, determining to transmit a message of establishing a connection to a transmitter for the first radio signal.

In one embodiment, when the reception quality with the first adjustment exceeds a first reference by a second threshold, determining to transmit a message of establishing a connection to a transmitter for the first radio signal.

In one embodiment, the second node1300is a base station (gNB/eNB).

In one embodiment, the second node1300is a base station supporting large delay difference.

In one embodiment, the second node1300is a base station supporting NTN.

In one embodiment, the second node1300is satellite equipment.

In one embodiment, the second node1300is a flight platform.

In one embodiment, the second transmitter1301comprises at least one of the antenna420, the transmitter418, the transmitting processor416, the multi-antenna transmitting processor471, the controller/processor475or the memory476in Embodiment 4.

In one embodiment, the second receiver1302comprises at least one of the antenna420, the receiver418, the receiving processor470, the multi-antenna receiving processor472, the controller/processor475or the memory476in Embodiment 4.

In one embodiment, the third receiver1303comprises at least one of the antenna420, the receiver418, the receiving processor470, the multi-antenna receiving processor472, the controller/processor475or the memory476in Embodiment 4.

The ordinary skill in the art may understand that all or part of steps in the above method may be implemented by instructing related hardware through a program. The program may be stored in a computer readable storage medium, for example Read-Only-Memory (ROM), hard disk or compact disc, etc. Optionally, all or part of steps in the above embodiments also may be implemented by one or more integrated circuits. Correspondingly, each module unit in the above embodiment may be realized in the form of hardware, or in the form of software function modules. The present disclosure is not limited to any combination of hardware and software in specific forms. The UE and terminal in the present disclosure include but are not limited to unmanned aerial vehicles, communication modules on unmanned aerial vehicles, telecontrolled aircrafts, aircrafts, diminutive airplanes, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensor, network cards, terminals for Internet of Things (I0T), RFID terminals, NB-IOT terminals, Machine Type Communication (MTC) terminals, enhanced MTC (eMTC) terminals, data cards, low-cost mobile phones, low-cost tablet computers, etc. The base station or system device in the present disclosure includes but is not limited to macro-cellular base stations, micro-cellular base stations, home base stations, relay base station, gNB (NR node B), Transmitter Receiver Point (TRP), and other radio communication equipment.

The above are merely the preferred embodiments of the present disclosure and are not intended to limit the scope of protection of the present disclosure. Any modification, equivalent substitute and improvement made within the spirit and principle of the present disclosure are intended to be included within the scope of protection of the present disclosure.