CN109526031B

CN109526031B - Method and device used in user equipment and base station for wireless communication

Info

Publication number: CN109526031B
Application number: CN201710837033.5A
Authority: CN
Inventors: 蒋琦
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2017-09-17
Filing date: 2017-09-17
Publication date: 2021-08-27
Anticipated expiration: 2037-09-17
Also published as: CN113596941A; CN113490243A; CN109526031A

Abstract

The application discloses a method and a device in a user equipment, a base station and the like used for wireless communication. The user equipment firstly sends a first wireless signal and then receives a second wireless signal; the receiver of the first wireless signal comprises a first base station, and the sender of the second wireless signal is the first base station; the information carried by the first wireless signal and the information carried by the second wireless signal both comprise the first identifier; the first identity is generated by a second base station, or the first identity is generated by the user equipment and the user equipment maintains an RRC connection with the second base station when transmitting the first radio signal. According to the method and the device, the first wireless signal and the second wireless signal are designed in the switching process and comprise the first identification, the first identification is configured in a non-switching target cell, the switching speed is effectively improved, and the overall performance of the system is further improved.

Description

Method and device used in user equipment and base station for wireless communication

Technical Field

The present invention relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus for a wireless signal with a long transmission delay.

Background

Currently, a research Project (Study Item) for supporting a Non-Terrestrial Network (Study on NR to supported Non-Terrestrial Network) in 5G NR (New Radio Access Technology) has been agreed in 3GPP (3rd generation partner Project) RAN (Radio Access Network), and a discussion of related technologies will be started in 2017, month 10. In the non-terrestrial network discussion, an important scenario is that the ground terminal directly accesses an aerospace Vehicle (Spaceborne Vehicle) for communication, and the aerospace Vehicle includes one or more of GEO (Geostationary Earth Orbit) satellite, MEO (Medium Earth Orbit) satellite, LEO (Low Earth Orbit) satellite, HEO (high elliptic Orbit) satellite, Airborne Platform. When the orbit of the space vehicle is higher, the transmission delay between the space vehicle and the ground terminal is very large, and if the ground terminal is switched between two satellites (Handover), the space vehicle can be realized by adopting a traditional switching mode with large delay, so that the performance is obviously influenced.

Disclosure of Invention

In conventional handover, the operation between the terminal device and the cell mainly consists of the following steps:

step 1, the terminal equipment firstly sends a Measurement Report (Measurement Report) to a Serving Cell (Serving Cell) to initiate handover;

step 2, the serving Cell sends a Handover Request (Handover Request) to the Target Cell (Target Cell) through a Backhaul Link (Backhaul Link);

step 3, the target Cell feeds back a Handover Request acknowledgement (Handover Request ACK) and configures a new C-RNTI (Cell Radio Network Temporary Identifier) for the terminal;

step 4, the service cell sends the MobilityControlInfo to trigger the terminal equipment to be disconnected with the service cell, and to synchronize with the target cell and initiate random access.

The inventor finds that if the switching of the satellite serving as the direct connection base station is completed in the scene by adopting the steps, the terminal equipment needs to wait for multiple interactions and multiple air interface transmissions between the base stations before initiating the synchronization and random access aiming at the switching to the target base station; the interaction between base stations introduces transmission delay between the base stations and the ground station, and the air interface transmission itself causes a large amount of delay. When both base stations involved in the handover are GEO satellites, the above handover method needs to introduce a delay of up to 10 seconds or more, which will significantly degrade the performance of the system.

In view of the above design, the present application discloses a solution. Without conflict, embodiments and features in embodiments in the user equipment of the present application may be applied to the base station and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method used in a user equipment for wireless communication, characterized by comprising:

-transmitting a first wireless signal;

-receiving a second wireless signal;

wherein the receiver of the first wireless signal comprises a first base station and the sender of the second wireless signal is the first base station; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identity is generated by a second base station, or the first identity is generated by the user equipment and the user equipment maintains an RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located.

As an example, the above method has the benefits of: the first identity is generated by a second base station or the first identity is generated by the user equipment, and the first identity is prevented from being configured from the first base station (a target cell in handover); and before the second base station and the first base station interact, the user equipment initiates synchronous and random access to the first base station, so that the waiting time of the user equipment is greatly reduced, and the switching speed and efficiency are improved.

According to one aspect of the application, the method described above is characterized by comprising:

-receiving a third wireless signal;

wherein the third wireless signal is used for { determining the first identity, triggering the first wireless signal }, a sender of the third wireless signal being the second base station.

As an example, the above method has the benefits of: the second base station determines the first identifier through the third wireless signal without waiting for feedback from a Backhaul Link of the first base station to configure the first identifier, as in the conventional handover procedure.

-receiving a fourth wireless signal;

wherein the fourth radio signal is used by the user equipment to determine handover from the second base station to the first base station, the sender of the fourth radio signal being the second base station.

As an example, the above method has the benefits of: and the second base station determines that the user equipment can initiate handover to the first base station through the third wireless signal, and further confirms that the handover operation is known by a network side to the user equipment so as to ensure the robustness and the reasonability of the handover.

-receiving a first signaling;

wherein the first identity is used for receiving the first signaling, the sender of which is the second base station.

As an embodiment, the above method is characterized in that: the first identity is a C-RNTI and is used for scheduling transmission of the user equipment.

-transmitting a fifth wireless signal;

wherein the fifth wireless signal is used to determine that the user equipment initiated a handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

As an embodiment, the above method is characterized in that: the fifth wireless signal is a measurement report sent by the ue, and is used to trigger a subsequent handover operation of the ue.

-transmitting a sixth wireless signal;

-receiving a seventh wireless signal;

wherein the fifth radio signal is used to trigger the sixth radio signal, the sixth radio signal being used by the user equipment to initiate random access to the first base station, the seventh radio signal being feedback for the sixth radio signal.

As an embodiment, the above method is characterized in that: the sixth radio signal is used for the user equipment to initiate random access to the first base station after triggering a handover operation, and the seventh radio signal is corresponding to the random access.

The application discloses a method in a first base station used for wireless communication, characterized by comprising:

-receiving a first wireless signal;

-transmitting a second wireless signal;

wherein a sender of the first wireless signal is a first terminal and a recipient of the second wireless signal comprises the first terminal; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identifier is generated by a second base station, or the first identifier is generated by the first terminal and the first terminal maintains RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located.

-receiving a sixth wireless signal;

-transmitting a seventh wireless signal;

wherein a fifth wireless signal is used to trigger the sixth wireless signal, the sixth wireless signal being used by the first terminal to initiate random access to the first base station, the seventh wireless signal being feedback for the sixth wireless signal; the fifth wireless signal is used to determine that the first terminal initiated a handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

-receiving first information;

wherein the first information comprises the first identifier, the first information is transmitted over a backhaul link, and a sender of the first information is the second base station.

-transmitting the second information;

wherein the second information is used to confirm the first information, the second information being transmitted over a backhaul link, a recipient of the second information comprising the second base station.

The application discloses a method in a second base station used for wireless communication, characterized by comprising:

-transmitting a third wireless signal;

wherein the third wireless signal is used for { determining a first identity, triggering a first wireless signal }, a recipient of the third wireless signal comprising a first terminal; the information carried by the first wireless signal includes the first identifier, where the first identifier is generated by the second base station, or the first identifier is generated by the first terminal and the first terminal maintains an RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located.

-transmitting a fourth wireless signal;

wherein the fourth wireless signal is used by the first terminal to determine handover from the second base station to the first base station.

-transmitting first signalling;

wherein the first identity is used to receive the first signaling.

-receiving a fifth wireless signal;

wherein the fifth wireless signal is used to determine that the first terminal initiates handover from the second base station to the first base station, the sender of the fifth wireless signal being the first terminal, the fifth wireless signal comprising an identification of the first base station.

-transmitting the first information;

wherein the first information comprises the first identifier, the first information is transmitted over a backhaul link, and a recipient of the first information comprises the first base station.

-receiving second information;

wherein the second information is used to confirm the first information, the second information being transmitted over a backhaul link, a sender of the second information being the first base station.

The application discloses a user equipment used for wireless communication, characterized by comprising:

-a first transceiver module to transmit a first wireless signal;

-a first receiver module receiving a second wireless signal;

As an embodiment, the user equipment used for wireless communication is characterized in that the first transceiver module further receives a third wireless signal; the third wireless signal is used for { determining the first identity, triggering at least one of the first wireless signals }, a sender of the third wireless signal being the second base station.

As an embodiment, the user equipment used for wireless communication is characterized in that the user equipment further comprises a second receiver module, and the second receiver module further receives the first signaling; the first identity is used for receiving the first signaling, the sender of which is the second base station.

As an embodiment, the user equipment used for wireless communication is characterized in that the first transceiver module further transmits a fifth wireless signal; the fifth wireless signal is used to determine that the user equipment initiates handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

As a sub-embodiment of this embodiment, the first transceiver module further transmits a sixth wireless signal and receives a seventh wireless signal; the fifth radio signal is used to trigger the sixth radio signal, the sixth radio signal is used by the user equipment to initiate random access to the first base station, and the seventh radio signal is feedback for the sixth radio signal.

As an embodiment, the user equipment used for wireless communication is characterized in that the user equipment further comprises a second receiver module, and the second receiver module receives a fourth wireless signal; the fourth wireless signal is used by the user equipment to determine handover from the second base station to the first base station, a sender of the fourth wireless signal being the second base station.

The application discloses a first base station device used for wireless communication, characterized by comprising:

-a second transceiver module receiving the first wireless signal;

-a first transmitter module to transmit a second wireless signal;

wherein a sender of the first wireless signal is a first terminal and a recipient of the second wireless signal comprises the first terminal; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identifier is generated by a second base station, or the first identifier is generated by the first terminal and the first terminal maintains an RRC connection with the second base station when transmitting the first wireless signal; the second base station and the first base station are non-co-located.

As an embodiment, the first base station device used for wireless communication described above is characterized in that the second transceiver module further receives a sixth wireless signal and transmits a seventh wireless signal; a fifth wireless signal is used to trigger the sixth wireless signal, the sixth wireless signal being used by the first terminal to initiate random access to the first base station, the seventh wireless signal being feedback for the sixth wireless signal; the fifth wireless signal is used to determine that the first terminal initiated a handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

As an embodiment, the first base station device used for wireless communication described above is characterized in that the first base station device further includes a third transceiver module, and the third transceiver module receives the first information; the first information comprises the first identity, the first information is transmitted on a backhaul link, and a sender of the first information is the second base station.

As a sub-embodiment of this embodiment, the third transceiver module further transmits second information; the second information is used to confirm the first information, the second information is transmitted over a backhaul link, and a recipient of the second information includes the second base station.

The present application discloses a second base station apparatus used for wireless communication, comprising:

-a fourth transceiver module for transmitting a third wireless signal;

As an embodiment, the above second base station apparatus for wireless communication is characterized in that the second base station further includes a second transmitter module, and the second transmitter module transmits a fourth wireless signal; the fourth wireless signal is used by the first terminal to determine a handover from the second base station to the first base station.

As an embodiment, the second base station device used for wireless communication described above is characterized in that the second base station further includes a second transmitter module, the second transmitter module transmits a first signaling, and the first identifier is used for receiving the first signaling.

As an embodiment, the second base station apparatus for wireless communication described above is characterized in that the fourth transceiver module receives a fifth wireless signal; the fifth wireless signal is used to determine that the first terminal initiates a handover from the second base station to the first base station, the sender of the fifth wireless signal being the first terminal, the fifth wireless signal comprising an identification of the first base station.

As an embodiment, the second base station apparatus used for wireless communication described above is characterized in that the second base station further includes a fifth transceiver module, and the fifth transceiver module transmits the first information; the first information comprises the first identification, the first information is transmitted over a backhaul link, and a recipient of the first information comprises the first base station.

As a sub-embodiment of this embodiment, the fifth transceiver module receives second information; the second information is used to confirm the first information, the second information is transmitted over a backhaul link, and a sender of the second information is the first base station.

As an example, compared with the conventional scheme, the method has the following advantages:

the first identity is generated by a second base station or the first identity is generated by the user equipment, avoiding the first identity from the configuration of the first base station (target cell in handover); and before the second base station and the first base station interact, the user equipment initiates synchronous and random access to the first base station, so that the waiting time of the user equipment is greatly reduced, and the switching speed and efficiency are improved.

The second base station determines the first identifier through the third wireless signal without waiting for feedback from the backhaul link of the first base station to configure the first identifier, as in the existing handover procedure, which further increases the speed of handover and reduces delay.

The second base station determines, through the third wireless signal, that the ue may initiate handover to the first base station, and then confirms, to the ue, that the handover operation initiated by the ue is known by the network side, so as to ensure robustness and reasonableness of handover.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

FIG. 1 shows a flow diagram of a first wireless signal and a second wireless signal according to one embodiment of the present application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

figure 4 shows a schematic diagram of an evolved node and a UE according to an embodiment of the present application;

FIG. 5 shows a flow diagram of the fifth wireless signal according to an embodiment of the present application;

fig. 6 shows a schematic distribution diagram of a user equipment, a first base station and a second base station according to the present application;

fig. 7 shows a schematic distribution diagram of another user equipment, a first base station and a second base station according to the present application;

fig. 8 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;

fig. 9 shows a block diagram of a processing device for use in a first base station according to an embodiment of the present application.

Fig. 10 shows a block diagram of a processing device for use in a second base station according to an embodiment of the present application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a flow chart of a first wireless signal and a second wireless signal, as shown in fig. 1.

In embodiment 1, the ue in this application first transmits a first wireless signal and then receives a second wireless signal; the receiver of the first wireless signal comprises a first base station, and the sender of the second wireless signal is the first base station; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identity is generated by a second base station, or the first identity is generated by the user equipment and the user equipment maintains an RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located.

As a sub-embodiment, the message carried by the first wireless signal is Msg 3 and the message carried by the second wireless signal is Msg 4.

As a sub-embodiment, the first radio signal corresponds to Uplink transmission scheduled on an UL-SCH (Uplink Shared Channel) for the first time in step 3 in a random access procedure of TS 36.300, and the second radio signal corresponds to downlink collision resolution in step 4 in a random access procedure of TS (Technical Specification) 36.300; or the first radio signal corresponds to uplink transmission scheduled on the UL-SCH for the first time in step 3 in the random access procedure in TS38.300, and the second radio signal corresponds to downlink collision resolution in step 4 in the random access procedure in TS 38.300.

As a sub-embodiment, the first Radio signal is RRC (Radio Resource Control) Handover acknowledgement (Handover Confirm) with ciphering and integrity protection transmitted on DCCH (Downlink Control Channel).

As a sub-embodiment, a Cyclic Redundancy Check (CRC) included in physical layer control signaling scheduling the second wireless signal is scrambled by the first identity.

As a sub-embodiment, the first wireless signal and the second wireless signal belong to the same random access Procedure (Procedure).

As a sub-embodiment, the first wireless signal is used to trigger the second wireless signal.

As a sub-embodiment, the first flag consists of 16 binary bits.

As a sub-embodiment, the first flag consists of 48 binary bits.

As a sub-embodiment, the first base station is a satellite.

As a sub-embodiment, the second base station is a satellite.

As a sub-embodiment, the first base station is a base station corresponding to a target cell of handover initiated by the user equipment.

As a sub-embodiment, the second base station is a base station corresponding to a serving cell of the user equipment.

As a sub-embodiment, the first identifier is generated by the user equipment and refers to: the first identity is a random number generated by the user equipment.

As a sub-embodiment, the first identifier is generated by the user equipment and refers to: the first identifier is one of { IMSI (International Mobile Subscriber Identity Number), S-TMSI (SAE temporal Mobile Subscriber Identity, SAE Temporary Mobile registration Identity), MME (Mobility Management Entity) S1AP (Application Protocol) UE (User Equipment) ID (identifier) }; among them, SAE is System Architecture Evolution (System Architecture Evolution).

As a sub-embodiment, the first identifier is generated by the user equipment and refers to: the first identity relates to one of { IMSI, S-TMSI, MME S1AP UE ID } of the user equipment.

As a sub-embodiment, the first identifier is generated by the second base station, and means: and the second base station configures the first identifier for the user equipment.

As a subsidiary embodiment of the sub-embodiment, the first identity is a C-RNTI configured by the second base station.

As a sub-embodiment, the first wireless signal comprises an rrcconnectionreconfiguration complete IE (Information Element) in TS 36.331, or the first wireless signal comprises an rrcconnectionreconfiguration complete IE in TS38.331

As a sub-embodiment, the first base station and the second base station are non-co-located, meaning that: the first base station and the second base station are two different communication devices.

As a sub-embodiment, the first base station and the second base station are non-co-located, meaning that: the first base station comprises a first cell set, and the first cell is any cell in the first cell set; the second base station comprises a second cell set, and the second cell is any cell in the second cell set; the first Cell and the second Cell respectively correspond to different PCIs (Physical Cell identities).

As a sub-embodiment, the first base station and the second base station are non-co-located, meaning that: the first base station and the second base station are located at different sites.

As a sub-embodiment, a backhaul link exists between the first base station and the second base station.

As a sub-embodiment, the second base station is a base station corresponding to a serving cell of the ue, and the first base station is a base station corresponding to a target cell of the ue initiating handover.

As a sub-embodiment, the second base station is a serving cell of the ue, and the first base station is a target cell of the ue initiating handover.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 is a diagram illustrating a network architecture 200 of NR 5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The NR 5G or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, EPCs (Evolved Packet cores)/5G-CNs (5G-Core networks) 210, HSS (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (point of transmission reception), or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine-type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless 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 agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5G-CN/EPC210 through an S1/NG interface. The 5G-CN/EPC210 includes MME/AMF/UPF211, other MME (Mobility Management Entity)/AMF (Authentication Management Field)/UPF (User Plane Function) 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and 5G-CN/EPC 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a PS streaming service (PSs).

As a sub-embodiment, the UE201 corresponds to the UE in the present application.

As a sub-embodiment, the gNB203 corresponds to the second base station in this application.

As a sub-embodiment, the gNB204 includes the first base station in this application.

As a sub-embodiment, the UE201 supports non-terrestrial network wireless communications.

As a sub-embodiment, the UE201 accesses the NR 5G network directly through satellite.

As a sub-embodiment, the gNB203 supports long delay wireless communications.

As a sub-embodiment, the UE201 supports long delay wireless communication.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3.

Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the User Equipment (UE) and the base station equipment (gNB or eNB) in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY 301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the gNB on the network side. Although not shown, the UE may have several upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and handover support for UEs between gnbs. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and the gNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the gNB and the UE.

As a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.

As a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to at least one of { the first base station, the second base station } in the present application.

As a sub-embodiment, the first signaling and the sixth wireless signal in this application are generated in the PHY 301.

As a sub-embodiment, the first information and the second information in the present application are transmitted in one of { X2 interface, S1 interface, Xn interface }.

As a sub embodiment, the first information and the second information in the present application belong to backhaul information.

As a sub-embodiment, the third radio signal and the fourth radio signal in the present application are generated in the RRC sublayer 306.

As a sub-embodiment, the fifth radio signal in the present application is generated in the RRC sublayer 306.

As a sub-embodiment, the seventh wireless signal in the present application is generated in the MAC sublayer 302.

As a sub-embodiment, the first radio signal and the second radio signal in the present application are generated in the RRC sublayer 306.

Example 4

Embodiment 4 shows a schematic diagram of a given base station apparatus and user equipment according to the present application, as shown in fig. 4. The given base station device is one of { the first base station, the second base station } in this application, and fig. 4 is a block diagram of a gNB410 communicating with a UE450 in an access network.

Base station apparatus (410) includes controller/processor 440, memory 430, receive processor 412, transmit processor 415, switch processor 471, transmitter/receiver 416, and antenna 420.

User equipment (450) includes controller/processor 490, memory 480, data source 467, transmit processor 455, receive processor 452, switch processor 441, transmitter/receiver 456, and antenna 460.

In the downlink transmission, the processing related to the base station apparatus (410) includes:

a controller/processor 440, upper layer packet arrival, controller/processor 440 providing packet header compression, encryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer protocols for the user plane and the control plane; the upper layer packet may include data or control information, such as DL-SCH (Downlink Shared Channel);

a controller/processor 440 associated with a memory 430 that stores program codes and data, the memory 430 may be a computer-readable medium;

a controller/processor 440 comprising a scheduling unit to transmit the requirements, the scheduling unit being configured to schedule air interface resources corresponding to the transmission requirements;

a switching processor 471 which determines to receive the first wireless signal and determines to transmit the second wireless signal; or determining to transmit a third wireless signal; and sends the results to controller/processor 440;

a transmit processor 415 that receives the output bit stream of the controller/processor 440, performs various signal transmission processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, and physical layer control signaling (including PBCH, PDCCH, PHICH, PCFICH, reference signal) generation, etc.;

a transmitter 416 for converting the baseband signal provided by the transmit processor 415 into a radio frequency signal and transmitting it via an antenna 420; each transmitter 416 samples a respective input symbol stream to obtain a respective sampled signal stream. Each transmitter 416 further processes (e.g., converts to analog, amplifies, filters, upconverts, etc.) the respective sample stream to obtain a downlink signal.

In the downlink transmission, the processing related to the user equipment (450) may include:

a receiver 456 for converting radio frequency signals received via an antenna 460 to baseband signals for provision to the receive processor 452;

a receive processor 452 that performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, etc.;

a switching processor 441 determining to transmit the first wireless signal and determining to receive the second wireless signal; and sends the results to controller/processor 490.

A controller/processor 490 receiving the bit stream output by the receive processor 452, providing packet header decompression, decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer protocols for the user plane and the control plane;

the controller/processor 490 is associated with a memory 480 that stores program codes and data. Memory 480 may be a computer-readable medium.

In UL (Uplink), processing related to the base station apparatus (410) includes:

a receiver 416 that receives the radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal to a baseband signal, and provides the baseband signal to the receive processor 412.

A receive processor 412 that performs various signal receive processing functions for the L1 layer (i.e., the physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, among others.

A controller/processor 440 implementing L2 layer functions and associated memory 430 storing program codes and data.

Controller/processor 440 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from UE 450. Upper layer packets from controller/processor 440 may be provided to the core network.

in UL (Uplink), processing related to a user equipment (450) includes:

a data source 467 that provides upper layer data packets to the controller/processor 490. Data source 467 represents all protocol layers above the L2 layer.

A transmitter 456 that transmits radio frequency signals through its respective antenna 460, converts baseband signals to radio frequency signals, and provides the radio frequency signals to the respective antenna 460.

A transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, among others.

Controller/processor 490 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation of the gNB410, implementing L2 layer functions for the user plane and control plane.

The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the gNB 410.

As a sub-embodiment, the UE450 apparatus comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, the UE450 apparatus at least: sending a first wireless signal and receiving a second wireless signal; the receiver of the first wireless signal comprises a first base station, and the sender of the second wireless signal is the first base station; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identity is generated by a second base station, or the first identity is generated by the user equipment and the user equipment maintains an RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located.

As a sub-embodiment, the UE450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending a first wireless signal and receiving a second wireless signal; the receiver of the first wireless signal comprises a first base station, and the sender of the second wireless signal is the first base station; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identity is generated by a second base station, or the first identity is generated by the user equipment and the user equipment maintains an RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located.

As a sub-embodiment, the gNB410 apparatus comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The gNB410 apparatus at least: receiving a first wireless signal and sending a second wireless signal; a sender of the first wireless signal is a first terminal and a recipient of the second wireless signal comprises the first terminal; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identifier is generated by a second base station, or the first identifier is generated by the first terminal and the first terminal maintains RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located.

As a sub-embodiment, the gNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first wireless signal and sending a second wireless signal; a sender of the first wireless signal is a first terminal and a recipient of the second wireless signal comprises the first terminal; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identifier is generated by a second base station, or the first identifier is generated by the first terminal and the first terminal maintains RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located.

As a sub-embodiment, the gNB410 apparatus comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The gNB410 apparatus at least: transmitting a third wireless signal; the third wireless signal is used for { determining a first identity, triggering a first wireless signal }, a recipient of the third wireless signal comprising a first terminal; the information carried by the first wireless signal includes the first identifier, where the first identifier is generated by the second base station, or the first identifier is generated by the first terminal and the first terminal maintains an RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located.

As a sub-embodiment, the gNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting a third wireless signal; the third wireless signal is used for { determining a first identity, triggering a first wireless signal }, a recipient of the third wireless signal comprising a first terminal; the information carried by the first wireless signal includes the first identifier, where the first identifier is generated by the second base station, or the first identifier is generated by the first terminal and the first terminal maintains an RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located.

As a sub-embodiment, the UE450 corresponds to a user equipment in the present application.

As a sub-embodiment, the gNB410 corresponds to a first base station in the present application.

As a sub-embodiment, the gNB410 corresponds to a second base station in the present application.

As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive at least one of the { second wireless signal, third wireless signal, fourth wireless signal, first signaling, seventh wireless signal } described herein.

As a sub-embodiment, at least the first two of the transmitter 456, transmit processor 455, and controller/processor 490 are used to transmit at least one of the { first wireless signal, fifth wireless signal, sixth wireless signal } described herein.

As a sub-embodiment, the switching processor 441 is used to determine to receive at least one of the { second wireless signal, third wireless signal, fourth wireless signal } in the present application, and to determine to transmit at least one of the { first wireless signal, fifth wireless signal } in the present application.

As a sub-embodiment, the gNB410 corresponds to the first base station in the present application; at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive at least one of the { first wireless signal, sixth wireless signal, first information } described herein.

As a sub-embodiment, the gNB410 corresponds to the first base station in the present application; at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit at least one of the { second wireless signal, seventh wireless signal, second information } described herein.

As a sub-embodiment, the gNB410 corresponds to the first base station in the present application; the switching processor 471 is used for determining to receive at least one of the { first wireless signal, first information } in the present application, and for determining to transmit at least one of the { second wireless signal, second information } in the present application.

As a sub-embodiment, the gNB410 corresponds to the second base station in the present application; at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive at least one of the { fifth wireless signal, second information } described herein.

As a sub-embodiment, the gNB410 corresponds to the second base station in the present application; at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit at least one of the { third wireless signal, first signaling, fourth wireless signal, first information } described herein.

As a sub-embodiment, the gNB410 corresponds to the second base station in the present application; the switching processor 471 is used for determining to receive the fifth wireless signal in the present application, and for determining to transmit at least one of the { third wireless signal, fourth information, first information } in the present application.

Example 5

Embodiment 5 illustrates a flow chart of a fifth wireless signal, as shown in fig. 5. In fig. 5, base station N1 is the maintaining base station of the serving cell of user equipment U3, base station N2 is the maintaining base station of the target cell of user equipment U3 initiated handover, and the steps of identifying F0, F1 and F2 in the figure are optional.

For theBase station N1The fifth wireless signal is received in step S10, the third wireless signal is transmitted in step S11, the first information is transmitted in step S12, the second information is received in step S13, the first signaling is transmitted in step S14, and the fourth wireless signal is transmitted in step S15.

For theBase station N2The sixth wireless signal is received at step S20, the seventh wireless signal is transmitted at step S21, the first information is received at step S22, the first wireless signal is received at step S23, the second wireless signal is transmitted at step S24, and the second information is transmitted at step S25.

For theUser equipment U3The fifth wireless signal is transmitted in step S30, the third wireless signal is received in step S31, the sixth wireless signal is transmitted in step S32, the seventh wireless signal is received in step S33, the first wireless signal is transmitted in step S34, the second wireless signal is received in step S35, the first signal is received in step S36, and the fourth wireless signal is received in step S37.

In embodiment 5, information carried by the first wireless signal includes a first identifier, and information carried by the second wireless signal includes the first identifier; the first identity is generated by a base station N1, or the first identity is generated by the user equipment U3 and the user equipment U3 maintains an RRC connection with the base station N1 while transmitting the first radio signal; the base station N2 and the base station N1 are non co-located; the third wireless signal is used for { determining the first identity, triggering the first wireless signal }; the fourth wireless signal is used by the user equipment U3 to determine a handover from the base station N1 to the base station N2; the first identity is used to receive the first signaling; the fifth wireless signal is used to determine that the user equipment U3 initiated a handover from the base station N1 to the base station N2, the fifth wireless signal comprising an identification of the base station N2; the fifth wireless signal is used to trigger the sixth wireless signal, the sixth wireless signal being used by the user equipment U3 to initiate random access to the base station N2, the seventh wireless signal being feedback for the sixth wireless signal; the first information comprises the first identification, the first information being transmitted over a backhaul link; the second information is used to acknowledge the first information, the second information being transmitted over a backhaul link.

As a sub-embodiment, the third wireless signal is used to determine the first identity, which is generated by the base station N1.

As a sub-embodiment, the third wireless signal is transmitted on a physical layer data channel.

As an additional embodiment of this sub-embodiment, the Physical layer data Channel is a PDSCH (Physical Downlink Shared Channel).

As an additional embodiment of this sub-embodiment, the Physical layer data Channel is a Short Latency Physical Downlink Shared Channel (sPDSCH).

As a sub-embodiment, the third wireless signal used to trigger the first wireless signal means: the user equipment U3 transmits the first wireless signal after receiving the third wireless signal.

As a sub-embodiment, the receiving of the fourth wireless signal is after the transmitting of the first wireless signal.

As a sub-embodiment, the reception of the fourth wireless signal is subsequent to the reception of the second wireless signal.

As a sub-embodiment, the fourth wireless signal is MobilityControlInfo IE in TS 36.331, or the fourth wireless signal is MobilityControlInfo IE in TS 38.331.

As a sub-embodiment, the fourth wireless signal belongs to RRCConnectionReconfiguration IE in TS 36.331, or the fourth wireless signal belongs to RRCConnectionReconfiguration IE in TS38.331

As a sub-embodiment, the fourth wireless signal includes MobilityControlInfo IE in TS 36.331, or the fourth wireless signal includes MobilityControlInfo IE in TS 38.331.

As a sub-embodiment, the fourth wireless signal is used by the user equipment U3 to determine that a handover initiated from the base station N1 to the base station N2 obtains agreement on the network side.

As a sub-embodiment, the first identifier used for receiving the first signaling is: the first identifier is used to determine time-frequency resources occupied by the first signaling.

As a sub-embodiment, the first identifier used for receiving the first signaling is: the first identifier is used for generating a DMRS (Demodulation Reference Signal) corresponding to the first signaling.

As a sub-embodiment, the first identifier used for receiving the first signaling is: the first identification is used to generate a CRC of the first signaling.

As a sub-embodiment, the first signaling is a downlink Grant (Grant).

As an additional embodiment of this sub-embodiment, the downlink grant is used for scheduling the fourth radio signal.

As a sub-embodiment, the fifth radio signal comprises the first identity, which is a random number generated by the user equipment U3, or the first identity is one of { IMSI, S-TMSI, MME S1AP UE ID } of the user equipment U3.

As a sub-embodiment, the first wireless signal is a Measurement Report (Measurement Report).

As a sub-embodiment, a first channel quality is used to represent the channel quality from the base station N2 to the user equipment U3, and a second channel quality is used to represent the channel quality from the base station N1 to the user equipment U3; the first channel quality and the second channel quality meet given conditions, and the user equipment U3 transmits the fifth wireless signal.

As an additional embodiment of this sub-embodiment, the fifth wireless signal comprises at least the former of { the first channel quality, the second channel quality }.

As an additional embodiment of the sub-embodiment, the channel quality is one of { RSRP (Reference Signal Received power), RSRQ (Reference Signal Received quality), RSSI (Received Signal Strength Indicator), SNR (Signal to Noise Rate), SINR (Signal to Interference plus Noise Ratio) }.

As a subsidiary embodiment of this sub-embodiment, said given condition means that the sum of said first channel quality and a first Offset (Offset) is greater than said second channel quality.

As an example of this subsidiary embodiment, said first bias is configured by higher layer signalling.

As an example of this subsidiary embodiment, said base station N2 is a satellite and said first offset is related to the type of said base station N2.

As an example of this subsidiary embodiment, said base station N1 is a satellite and said first offset is related to the type of said base station N1.

As a specific example of the above two examples, the type refers to which of a GEO (Geosynchronous Orbit) satellite, a MEO (Medium Earth Orbit) satellite, a LEO (Low Earth Orbit) satellite, a HEO (high elliptic Orbit) satellite, and an Airborne Platform is the satellite.

As an example of this subsidiary embodiment, said base station N2 is a satellite and said first offset is related to the altitude of said base station N2.

As an example of this subsidiary embodiment, said base station N1 is a satellite and said first offset is related to the altitude of said base station N1.

As an example of this subsidiary embodiment, said base station N2 is a satellite and said first offset is related to the coverage of said base station N2.

As an example of this subsidiary embodiment, said base station N1 is a satellite and said first offset is related to the coverage of said base station N1.

As a sub-embodiment, the sixth wireless signal occupies a first time-frequency resource, and the sixth wireless signal is generated by a first sequence; the first time-frequency resource belongs to a first set of time-frequency resources, and the first sequence belongs to a set of candidate sequences.

As an additional embodiment of this sub-embodiment, the first set of time-frequency resources is predefined.

As an additional embodiment of this sub-embodiment, the set of candidate sequences is predefined.

As a sub-embodiment, the Physical layer Channel corresponding to the sixth wireless signal is a PRACH (Physical Random Access Channel).

As a sub-embodiment, the seventh wireless signal is an RAR (Random Access Response).

As a sub-embodiment, the seventh wireless signal is Msg 2.

As a sub-embodiment, the seventh radio signal corresponds to RAR generated by MAC (Media Access Control) and transmitted on DL-SCH (Downlink Shared Channel) in step 2 of random Access procedure in TS 36.300, or corresponds to RAR generated by MAC and transmitted on DL-SCH in step 2 of random Access procedure in TS 38.300.

As a sub-embodiment, the first information includes Data forwarding (Data forwarding) and SN (Sequence Number) state transition for the user equipment U3.

As a sub-embodiment, the first information is a Handover Request in TS36.423, or the first information is a Handover Request in TS 38.423.

As a sub-embodiment, the backhaul link corresponds to an Xn interface.

As a sub-embodiment, the base station N2 correctly receives the first information and correctly receives the first wireless signal, the base station N2 transmits the second wireless signal and the second wireless signal includes the first identifier.

As a sub-embodiment, the transmission of the second information is subsequent to the reception of the first wireless signal.

As a sub-embodiment, the transmission of the second information precedes the reception of the first wireless signal.

As a sub-embodiment, the transmission of the second information is after the reception of the sixth wireless signal.

As a sub-embodiment, the transmission of the second information follows the transmission of the seventh wireless signal.

As a sub-embodiment, the second information is a Handover Request Ack (Handover Request acknowledge) in TS36.423, or the second information is a Handover Request Ack in TS 38.423.

As a sub-embodiment, the base station N2 sends the second information and the base station N2 retains the data transfer and the SN status transition for the user equipment U3 in the first information.

As a sub-embodiment, the base station N1 is a serving cell of the user equipment U3, the base station N2 is a target cell corresponding to the user equipment U3 initiating handover, and the identity of the base station N2 is a PCI of the target cell.

As a sub-embodiment, the base station N1 is a base station corresponding to a serving cell of the user equipment U3, the base station N2 is a base station corresponding to a target cell to which the user equipment U3 initiates handover, and the identity of the base station N2 is a PCI of the target cell.

Example 6

Embodiment 6 illustrates a distribution diagram of a user equipment, a first base station and a second base station, as shown in fig. 6. In fig. 6, the user equipment is a ground terminal; the first base station and the second base station are respectively positioned on a first satellite and a second satellite; the ground station on which the first satellite is used for the method described herein is a first ground station, and the ground station on which the second satellite is used for the method described herein is a second ground station; the second base station is a base station corresponding to a serving cell of the ground terminal, and the first base station is a base station corresponding to a target cell corresponding to the ground terminal when the ground terminal initiates a handover request; the wireless link between the first base station and the first ground station corresponds to a first link, the wireless link between the second base station and the second ground station corresponds to a second link, and the link between the first ground station and the second ground station is a third link.

As a sub-embodiment, the transmission of the first information over a backhaul link in the present application comprises the following steps:

-a step d1. said first information is transmitted from said second base station to said second ground station over said second link;

-step D2. the first information is transmitted from the second ground station to the first ground station over the third link;

-a step d3. the first information is transmitted from the first ground station to the first base station over the first link.

As a sub embodiment, the transmitting the second information over the backhaul link in the present application includes:

-a step e1. said second information is transmitted from said first base station to said first ground station over said first link;

-a step e2. the second information is transmitted from the first ground station to the second ground station over the third link;

-step E3. the second information is transmitted from the second ground station to the second base station over the second link.

As a sub-embodiment, the third link is a non-wireless link.

As a sub-embodiment, the first link, the second link, and the third link collectively comprise the backhaul link in this application.

Example 7

Embodiment 7 illustrates a distribution diagram of another user equipment, a first base station and a second base station, as shown in fig. 7. In fig. 7, the user equipment is a ground terminal; the first base station and the second base station are respectively positioned on a first satellite and a second satellite; the first satellite and the second satellite share a target ground station, and the target ground station is used for transmitting the first information and the second information in the application; the second base station is a base station corresponding to a serving cell of the ground terminal, and the first base station is a base station corresponding to a target cell corresponding to the ground terminal when the ground terminal initiates a handover request; the wireless link between the first base station and the target ground station corresponds to a fourth link, and the wireless link between the second base station and the target ground station corresponds to a fifth link.

-a step f1. the first information is transmitted from the second base station to the target ground station over the fifth link;

-step F2. the first information is transmitted from the target ground station to the first base station over the fourth link.

-step G1. transmitting said second information from said first base station to said target ground station over said fourth link;

-step G2. transmitting said second information from said target ground station to said second base station over said fifth link.

As a sub-embodiment, the fourth link and the fifth link together comprise the backhaul link in this application.

Example 8

Embodiment 8 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 8. In fig. 8, the UE processing apparatus 800 mainly comprises a first transceiver module 801, a first receiver module 802 and a second receiving module 803.

A first transceiver module 801, transmitting a first wireless signal;

a first receiver module 802 receiving a second wireless signal;

a second receiver module 803 receiving the fourth wireless signal;

in embodiment 8, the receiver of the first wireless signal includes a first base station, and the sender of the second wireless signal is the first base station; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identity is generated by a second base station, or the first identity is generated by the UE and the UE maintains an RRC connection with the second base station when transmitting the first wireless signal; the second base station and the first base station are non-co-located; the fourth wireless signal is used by the UE to determine a handover from the second base station to the first base station, a sender of the fourth wireless signal being the second base station.

As a sub-embodiment, the first transceiver module 801 further receives a third wireless signal; the third wireless signal is used for { determining the first identity, triggering at least one of the first wireless signals }, a sender of the third wireless signal being the second base station.

As a sub embodiment, the second receiver module 803 further receives a first signaling; the first identity is used for receiving the first signaling, the sender of which is the second base station.

As a sub-embodiment, the first transceiver module 801 further transmits a fifth wireless signal; the fifth wireless signal is used to determine that the user equipment initiates handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

As a sub-embodiment, the first transceiver module 801 further transmits a sixth wireless signal and receives a seventh wireless signal; the fifth radio signal is used to trigger the sixth radio signal, the sixth radio signal is used by the user equipment to initiate random access to the first base station, and the seventh radio signal is feedback for the sixth radio signal.

As a sub-embodiment, the first transceiver module 801 includes at least the first four of { receiver/transmitter 456, receive processor 452, transmit processor 455, switch processor 441, controller/processor 490} in embodiment 4.

As a sub-embodiment, the first receiver module 802 includes at least two of { receiver 456, receive processor 452, switch processor 441, controller/processor 490} in embodiment 4.

As a sub-embodiment, the second receiver module 803 includes at least two of { receiver 456, receive processor 452, controller/processor 490} in embodiment 4.

Example 9

Embodiment 9 is a block diagram illustrating a configuration of a processing device in a first base station apparatus, as shown in fig. 9. In fig. 9, the base station device processing apparatus 900 mainly includes a second transceiver module 901, a first transceiver module 902 and a third transceiver module 903.

A second transceiver module 901 receiving a first wireless signal;

-a first transmitter module 902, transmitting a second wireless signal;

-a third transceiver module 903 receiving the first information;

in embodiment 9, the sender of the first wireless signal is a first terminal, and the recipient of the second wireless signal comprises the first terminal; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identifier is generated by a second base station, or the first identifier is generated by the first terminal and the first terminal maintains an RRC connection with the second base station when transmitting the first wireless signal; the second base station and the first base station are non-co-located; the first information comprises the first identity, the first information is transmitted on a backhaul link, and a sender of the first information is the second base station.

As a sub-embodiment, the second transceiver module 901 further receives a sixth wireless signal and transmits a seventh wireless signal; a fifth wireless signal is used to trigger the sixth wireless signal, the sixth wireless signal being used by the first terminal to initiate random access to the first base station, the seventh wireless signal being feedback for the sixth wireless signal; the fifth wireless signal is used to determine that the first terminal initiated a handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

As a sub-embodiment, the third transceiver module 903 further transmits second information; the second information is used to confirm the first information, the second information is transmitted over a backhaul link, and a recipient of the second information includes the second base station.

As a sub-embodiment, the second transceiver module 901 includes at least the first four of { receiver/transmitter 416, receive processor 412, transmit processor 415, switch processor 471, controller/processor 440} in embodiment 4.

As a sub-embodiment, the first transmitter module 902 includes at least the first two of { transmitter 416, transmission processor 415, switching processor 471, controller/processor 440} in embodiment 4.

As a sub-embodiment, the third transceiver module 903 comprises at least the first three of { receiver/transmitter 416, receive processor 412, transmit processor 415, controller/processor 440} in embodiment 4.

Example 10

Embodiment 10 is a block diagram illustrating a processing apparatus in a second base station device, as shown in fig. 10. In fig. 10, the first base station device processing apparatus 1000 is mainly composed of a fourth transceiver module 1001, a second transmitter module 1002 and a fifth transceiver module 1003.

A fourth transceiver module 1001 transmitting a third wireless signal;

a second transmitter module 1002, transmitting a fourth wireless signal;

a fifth transceiver module 1003 transmitting the first information;

in embodiment 10, the third wireless signal is used for { determining a first identity, triggering a first wireless signal }, a recipient of the third wireless signal comprising a first terminal; the information carried by the first wireless signal includes the first identifier, where the first identifier is generated by the second base station, or the first identifier is generated by the first terminal and the first terminal maintains an RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located; the fourth wireless signal is used by the first terminal to determine a handover from the second base station to the first base station; the first information comprises the first identification, the first information is transmitted over a backhaul link, and a recipient of the first information comprises the first base station.

As a sub-embodiment, the second transmitter module 1002 transmits a first signaling, and the first identifier is used for receiving the first signaling.

As a sub-embodiment, the fourth transceiver module 1001 receives a fifth wireless signal; the fifth wireless signal is used to determine that the first terminal initiates a handover from the second base station to the first base station, the sender of the fifth wireless signal being the first terminal, the fifth wireless signal comprising an identification of the first base station.

As a sub-embodiment, the fifth transceiver module 1003 receives the second information; the second information is used to confirm the first information, the second information is transmitted over a backhaul link, and a sender of the second information is the first base station.

As a sub-embodiment, the fourth transceiver module 1001 includes at least the first four of { receiver/transmitter 416, receive processor 412, transmit processor 415, switch processor 471, controller/processor 440} in embodiment 4.

As a sub-embodiment, the second transmitter module 1002 includes at least the first two of { transmitter 416, transmission processor 415, switching processor 471, controller/processor 440} in embodiment 4.

As a sub-embodiment, the fifth transceiver module 1003 includes at least the first three of { receiver/transmitter 416, receive processor 412, transmit processor 415, controller/processor 440} in embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, Communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, Machine Type Communication (MTC) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, equipment such as low-cost panel computer. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, a gNB (NR node B), a TRP (Transmitter Receiver Point), and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method in a user equipment used for wireless communication, comprising:

-transmitting a first wireless signal;

-receiving a second wireless signal;

wherein the receiver of the first wireless signal comprises a first base station and the sender of the second wireless signal is the first base station; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identity is generated by a second base station, or the first identity is generated by the user equipment and the user equipment maintains an RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located; the message carried by the first wireless signal is Msg 3 and the message carried by the second wireless signal is Msg 4.

2. The method of claim 1, comprising:

-receiving a third wireless signal;

wherein the third wireless signal is used to determine the first identity, or the third wireless signal is used to trigger the first wireless signal, or the third wireless signal is used to determine the first identity and the third wireless signal is used to trigger the first wireless signal; the sender of the third wireless signal is the second base station.

3. A method as claimed in claim 1 or 2, comprising:

-receiving a fourth wireless signal;

4. The method according to claim 1 or 2, comprising:

-receiving a first signaling;

5. The method of claim 3, comprising:

-receiving a first signaling;

6. The method according to claim 1 or 2, comprising:

-transmitting a fifth wireless signal;

7. The method of claim 3, comprising:

-transmitting a fifth wireless signal;

8. The method of claim 4, comprising:

-transmitting a fifth wireless signal;

9. The method of claim 5, comprising:

-transmitting a fifth wireless signal;

10. The method of claim 6, comprising:

-transmitting a sixth wireless signal;

-receiving a seventh wireless signal;

11. The method of claim 7, comprising:

-transmitting a sixth wireless signal;

-receiving a seventh wireless signal;

12. The method according to claim 8 or 9, comprising:

-transmitting a sixth wireless signal;

-receiving a seventh wireless signal;

13. A method in a first base station used for wireless communication, comprising:

-receiving a first wireless signal;

-transmitting a second wireless signal;

wherein a sender of the first wireless signal is a first terminal and a recipient of the second wireless signal comprises the first terminal; the information carried by the first wireless signal comprises a first identifier, and the information carried by the second wireless signal comprises the first identifier; the first identifier is generated by a second base station, or the first identifier is generated by the first terminal and the first terminal maintains RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located; the message carried by the first wireless signal is Msg 3 and the message carried by the second wireless signal is Msg 4.

14. The method as recited in claim 13, comprising:

-receiving a sixth wireless signal;

-transmitting a seventh wireless signal;

15. The method according to claim 13 or 14, comprising:

-receiving first information;

16. The method of claim 15, comprising:

-transmitting the second information;

17. A method in a second base station used for wireless communication, comprising:

-transmitting a third wireless signal;

wherein the third wireless signal is used to determine the first identity, or the third wireless signal is used to trigger the first wireless signal, or the third wireless signal is used to determine the first identity and the third wireless signal is used to trigger the first wireless signal; the recipient of the third wireless signal comprises a first terminal; the information carried by the first wireless signal includes the first identifier, where the first identifier is generated by the second base station, or the first identifier is generated by the first terminal and the first terminal maintains an RRC connection with the second base station when the first wireless signal is transmitted; the second base station and the first base station are non-co-located, and the recipient of the first wireless signal comprises the first base station; the information carried by the first wireless signal is Msg 3.

18. The method as recited in claim 17, comprising:

-transmitting a fourth wireless signal;

19. The method according to claim 17 or 18, comprising:

-transmitting first signalling;

wherein the first identity is used to receive the first signaling.

20. The method according to claim 17 or 18, comprising:

-receiving a fifth wireless signal;

21. The method of claim 19, comprising:

-receiving a fifth wireless signal;

22. The method according to claim 17 or 18, comprising:

-transmitting the first information;

23. The method of claim 19, comprising:

-transmitting the first information;

24. The method of claim 20, comprising:

-transmitting the first information;

25. The method of claim 21, comprising:

-transmitting the first information;

26. The method of claim 22, comprising:

-receiving second information;

27. The method of claim 23, comprising:

-receiving second information;

28. The method of claim 24 or 25, comprising:

-receiving second information;

29. A user device configured for wireless communication, comprising:

-a first transceiver module to transmit a first wireless signal;

-a first receiver module receiving a second wireless signal;

30. The user equipment as recited in claim 29 wherein the first transceiver module receives a third wireless signal; the third wireless signal is used to determine the first identity, or the third wireless signal is used to trigger the first wireless signal, or the third wireless signal is used to determine the first identity and the third wireless signal is used to trigger the first wireless signal; the sender of the third wireless signal is the second base station.

31. The user equipment according to claim 29 or 30, comprising:

a second receiver module to receive a fourth wireless signal;

32. The user equipment according to claim 29 or 30, comprising:

a second receiver module to receive the first signaling;

33. The user equipment as claimed in claim 31, comprising:

a second receiver module to receive the first signaling;

34. The user equipment as claimed in claim 29 or 30, wherein the first transceiver module transmits a fifth wireless signal; the fifth wireless signal is used to determine that the user equipment initiates handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

35. The user equipment of claim 31, wherein the first transceiver module transmits a fifth wireless signal; the fifth wireless signal is used to determine that the user equipment initiates handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

36. The user equipment of claim 32, wherein the first transceiver module transmits a fifth wireless signal; the fifth wireless signal is used to determine that the user equipment initiates handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

37. The user equipment of claim 33, wherein the first transceiver module transmits a fifth wireless signal; the fifth wireless signal is used to determine that the user equipment initiates handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

38. The user equipment as recited in claim 34 wherein the first transceiver module transmits a sixth wireless signal and the first transceiver module receives a seventh wireless signal; the fifth radio signal is used to trigger the sixth radio signal, the sixth radio signal is used by the user equipment to initiate random access to the first base station, and the seventh radio signal is feedback for the sixth radio signal.

39. The user equipment as recited in claim 35 wherein the first transceiver module transmits a sixth wireless signal and the first transceiver module receives a seventh wireless signal; the fifth radio signal is used to trigger the sixth radio signal, the sixth radio signal is used by the user equipment to initiate random access to the first base station, and the seventh radio signal is feedback for the sixth radio signal.

40. The user equipment as recited in claim 36 or 37 wherein the first transceiver module transmits a sixth wireless signal and the first transceiver module receives a seventh wireless signal; the fifth radio signal is used to trigger the sixth radio signal, the sixth radio signal is used by the user equipment to initiate random access to the first base station, and the seventh radio signal is feedback for the sixth radio signal.

41. A first base station for wireless communication, comprising:

-a second transceiver module receiving the first wireless signal;

-a first transmitter module to transmit a second wireless signal;

42. The first base station as claimed in claim 41, wherein said second transceiver module receives a sixth wireless signal and said second transceiver module transmits a seventh wireless signal; a fifth wireless signal is used to trigger the sixth wireless signal, the sixth wireless signal being used by the first terminal to initiate random access to the first base station, the seventh wireless signal being feedback for the sixth wireless signal; the fifth wireless signal is used to determine that the first terminal initiated a handover from the second base station to the first base station, a recipient of the fifth wireless signal comprising the second base station, the fifth wireless signal comprising an identification of the first base station.

43. The first base station according to claim 41 or 42, comprising:

a third transceiver module for receiving the first information;

44. The first base station of claim 43, wherein the third transceiver module transmits second information; the second information is used to confirm the first information, the second information is transmitted over a backhaul link, and a recipient of the second information includes the second base station.

45. A second base station for wireless communication, comprising:

-a fourth transceiver module for transmitting a third wireless signal;

46. The second base station as claimed in claim 45, comprising:

a second transmitter module that transmits a fourth wireless signal;

47. The second base station according to claim 45 or 46, comprising:

a second transmitter module that transmits the first signaling;

wherein the first identity is used to receive the first signaling.

48. The second base station according to claim 45 or 46, characterized in that said fourth transceiver module receives a fifth radio signal; the fifth wireless signal is used to determine that the first terminal initiates a handover from the second base station to the first base station, the sender of the fifth wireless signal being the first terminal, the fifth wireless signal comprising an identification of the first base station.

49. The second base station as claimed in claim 47, wherein said fourth transceiver module receives a fifth wireless signal; the fifth wireless signal is used to determine that the first terminal initiates a handover from the second base station to the first base station, the sender of the fifth wireless signal being the first terminal, the fifth wireless signal comprising an identification of the first base station.

50. The second base station according to claim 45 or 46, comprising:

a fifth transceiver module for transmitting the first information;

51. The second base station as claimed in claim 47, comprising:

a fifth transceiver module for transmitting the first information;

52. The second base station as claimed in claim 48, comprising:

a fifth transceiver module for transmitting the first information;

53. The second base station as claimed in claim 49, comprising:

a fifth transceiver module for transmitting the first information;

54. The second base station as claimed in claim 50, wherein said fifth transceiver module receives second information; the second information is used to confirm the first information, the second information is transmitted over a backhaul link, and a sender of the second information is the first base station.

55. The second base station as claimed in claim 51, wherein said fifth transceiver module receives second information; the second information is used to confirm the first information, the second information is transmitted over a backhaul link, and a sender of the second information is the first base station.

56. The second base station according to claim 52 or 53, characterized in that said fifth transceiver module receives second information; the second information is used to confirm the first information, the second information is transmitted over a backhaul link, and a sender of the second information is the first base station.